Guide to the Harold F. Elliott Papers 2003-36 History San Jose Research Library & Archives

Elliott's Patent Materials

Extent and Location: 5.75 linear feet, Boxes 1 through 12 (2003-36-2 through 2003-36- 47):

Throughout his career, Elliott was a pioneer in the independent design, development, and marketing of innovative radio apparatus, including push-button, remote control, and clock control mechanisms for radio receivers and transmitters His groundbreaking contributions earned him more than 80 U.S patents between 1920 and 1966, showcasing his significant impact on the radio technology industry This collection includes various documents related to his extensive work and achievements.

Elliott’s invention patents and is divided into three subseries: Elliott's Patent Lists and Related Abstracts, Patent Records By Case Number and Patent Records Without Case Numbers and Related Documents.

Elliott's Patent Lists and Related Abstracts

Extent and Location: 1 folder, Box 1 (2003-36-3):

Documents related to Elliott's invention patents Includes lists of Elliott's patents with related abstracts Note that the patents lists do not include all of Elliott's many patents.

Patent Records By Case Number

Documents related to Elliott's Patent Applications as designated by Case Number.

Patent Records Without Case Numbers and Related Documents

Extent and Location: 5 linear feet, Boxes 11 and 12 (2003-36-47):

The article discusses unassigned case numbers related to Elliott's patents and inventions, featuring correspondence between Elliott and his patent attorney, John Flam, from October 1925 to March 1929 It also highlights Wilbur Elliott's patent for an Ellipsograph, granted in 1913 under Patent No 1,055,303.

License Agreements and Related Documents

Extent and Location: 4 folders, Box 12 (2003-36-48):

This series contains license agreements and related documents regarding Elliott's various patents and inventions Also includes related correspondence regarding Elliott's license agreements with the U.S Government, Galvin Manufacturing Corporation, Oak

Manufacturing Company and the Radio Research Laboratory at Harvard University.

Interference Testimony and Related Documents

This article discusses three significant patent interference cases: Radio Corporation of America v Radio Engineering Labs., Inc (1934), Loy E Barton v Harold F Elliott (Interference No 70,658), and Mastney and Williams v Elliott (Interference No 81,126) These proceedings highlight key legal disputes in patent law and their implications for innovation and competition in the industry.

The documentation for the Radio Corporation of America v Radio Engineering Labs., Inc case features Elliott's research on oscillator patents from 1930-1931 during his tenure at RCA-Victor Company, Inc., along with associated notes and correspondence This landmark case has also been referenced in the more contemporary Microsoft Corp v i4i Limited Partnership et al case.

563 U.S _ (2011) as having established the "clear and convincing" evidence standard required to overturn an already issued patent

In the case of Loy E Barton v Harold F Elliott (Interference No 70,658), Barton asserted that Elliott's patent application for Automatic Gain Control (Serial No 628,629) conflicted with his own patent application for Automatic Volume Control with Noise Suppression.

No 640,946) The documentation includes Elliott's interference testimony and related correspondence (1935-1937); however, there does not appear to be sufficient information to determine the outcome of this interference proceeding

In Mastney and Williams v Elliott (Interference No 81,126), Edward J Mastney (from Oak Manufacturing Company) claimed that Elliott's Control Mechanism (1941, Serial

No 424,234, Elliott Cases 25 and 29) interfered with Mastney's Preselecting Mechanism

(1942, Patent No 2,293,299) It appears that this interference claim was eventually dropped A related interference claim (Interference No 82,100) was also dropped Includes related correspondence (1941-1945).

Legal Counsel Correspondence

Extent and Location: 75 linear feet, Boxes 14 and 15 (2003-36-50 through 2003-36-58):

This series features correspondence between Elliott and several legal counsels, including Laurence B Dodds, John Flam, H Rowan Gaither, Jr., Howard P King, Foorman L Mueller, T.G Norris, Frederic E Supple, and Eugene C Taylor It is important to note that due to Elliott's simultaneous efforts in developing, patenting, and marketing his numerous inventions, the correspondence may overlap with other related series, such as Subseries 1.2 (Patent Records By Case Number), Subseries 1.3 (Patent Records Without Case Numbers and Related Documents), and Series 2 (License Agreements and Related Documents).

3 (Interference Testimony and Related Documents).

U.S Patent Documents Collected For Reference

Elliott's extensive collection comprises over 475 patents gathered for his professional research, including British, French, and German patents from the years 2003-36-73 This collection also features related articles and Elliott's correspondence with the U.S Patent Office.

Federal Telegraph Company

Extent and Location: 6.25 linear feet and 12 map folders, Boxes 18 through 30, Map Folders H002265 through H002276 (2003-36-7 and 2003-36-75 through 2003-36-153):

From 1916 to 1922, Elliott worked at the Federal Telegraph Company as a Chief

From 1922 to 1925, a draftsman and production manager served as the Consulting Engineer responsible for designing high-power radio transmitting equipment for the Trans-Pacific project, also known as the "Chinese project," for the Federal Telegraph Company and its Delaware subsidiary The project aimed to establish four radio transmission stations in Shanghai, Beijing, Canton, and Harbin, China However, by 1924, the project faced significant challenges, including the instability of the Chinese government, the emergence of short-wave radio technology, and conflicts between the Federal Telegraph Company and RCA, ultimately leading to its suspension.

Chinese project to be delayed Elliott wrote “It was not until 10 years later that R.C.A finally established a short wave circuit to Shanghai.”

This series consists of documents related to Elliott's employment with the Federal

The Telegraph Company archives are organized into eight distinct subseries, which include Correspondence and Related Documents, Reports, Blueprints and Oversized Documents, Assorted Data, Computations and Sketches, Work Diaries and Related Documents, as well as Photographs and Assorted Documents.

Federal Telegraph Company - Correspondence and Related Documents

Box 18: Correspondence and Related Documents (December 1916 – April 1920)

• Automatic Timing Relays for the Sayville, Annapolis, Liberty, El Cayey and Columbia Stations

• Memoranda regarding the Transfer of Charges of Time and Materials caused by the cancellation of 100 2K Merchant Ship Sets and Alternations made to 2 kW

• SetsComputations for Eddy Currents in a Round Conductor in a Magnetic Field, Eddy

• Currents Loss in Inductors, Resistance of Radio Frequency Inductors and R F Current Transformer

• 2 kW Ship Set, Preliminary Design

• Preliminary List of Parts for One 2 kW Arc Tractor Set

• Resistance of 2 kW Loading Coil, Type 22042

• Technical Drawings for High Speed Key Control Panel for High Power Arc Radio Stations with Relay Keys, Type S.E 1521

• Guantanamo Key Loops and other test results

• Summary of Experimental Work done on Single Wave Signaling Systems - September 24, 1919 to October 14, 1919

• Changes for 100 2 kW Sets - Contract #42141

• Drawings for Single Wave Signaling

• Parts list for 500 kW Generator Panel in storage at San Diego, CA

• Movable Plate Condenser, Test and Computations

• Navy Department Memorandum regarding Radio Telegraph - Contract 42141 (Bu SE 184/19-300 2kW Arcs Relative to modification in contract specifications

• December 24, 1919 Report to the U.S Navy regarding Test of Single Wave Signaling

• Syllabus for Radio Engineering Lecture Series (held weekly for Federal Telegraph employees)

• Various computations, drawings and sketches

• List of Publications kept in Laboratory for Reference

• Lafayette Radio Station - Data/Computations on Coupled Compensation

• Memorandum - Gas Seal for Arc Converters

• San Diego Radio Station - Data/Computation for Coupled Compensation Key Loops

• List of Drafting Room Charges

• Check List for New Mechanical Drawings

• Schedule for Radio Engineering Lecture Series (held weekly for Federal

Telegraph employees) and Lecture Notes

• Guam Radio Station - Data/Computations on Coupled Compensation Signaling System

• Specifications for Power Machinery for Radio Stations

Box 19: Correspondence and Related Documents (May 1920 – February 1921)

The Federal Telegraph Company entered into a contract with the Pacific Rolling Mill Company (Nevada) for the structural steel work required for the construction and completion of two 626-foot steel radio towers One tower is set to be built in Santa Clara County, situated between Palo Alto and Mountain View, while the second tower will be located at Newton Station, near Hillsboro, Oregon.

The Federal Telegraph Company has entered into a contract with the Duncanson Harrelson Company in Santa Clara County, California, to undertake the essential work of driving piles and conducting necessary excavations for the construction of a wireless tower in the region.

• Construction Contract between the Federal Telegraph Company and Hopkins & Andress regarding the necessary excavation work for the installation of a wireless tower at Newton Station, near Hillsboro, Oregon

• Guam Radio Station - List of Materials required for 100 kW Arc Installation

• Memorandum regarding Mica Condensers for Single Wave Signaling Installations

• San Diego Radio Station - Data/Computations for Coupled Compensation Key System

• Guantanamo Radio System - Draft List of Materials required for 30 kW Single Wave System

• Annapolis Radio System - Single Wave Signaling System

• Laboratory Report - Notes on A Couple Compensation Signaling System for U.S Naval High Power Radio Station, San Diego, California

• Analysis of Drafting Room Costs

• Memorandum regarding Spare Parts for 5 kW Arc Radio Transmitter

• Draft memorandum regarding Methods of Reducing Losses in the Radiating Systems of Large Radio Stations

• Various computations, notes and sketches

• List of Publications in the Research Laboratory Library

• Summary of Work Done on Single Wave Signaling System at San Diego during parts of July and August 1920

• Notes regarding Draft 5 kW Loading Inductor for 15 Amperes in Antenna

• Notes regarding Single Wave Signaling Circuits - Extensions and Variations

• Notes regarding San Diego 30 kW Helix

• Notes regarding Signaling Balancing Residual

• Memorandum regarding Mica Condensers for Single Wave Signaling

• Testing Schedules from San Diego Radio Station to other Radio Stations

• Various computations, notes and sketches

• Internal Memorandum regarding Inductors and Single Wave Systems

• Notes regarding Annapolis Radio Station Signal Wave System

• Notes and computations regarding Current Transformers, Air Condensers,

Coupled Circuits, Vibration Galvanometers, High Speed Keys

• Test data regarding 5 kW Loading Coil

• United States Naval Institute December 1920 Proceedings, article regarding Steel Tower Construction at the World’s Greatest Radio Station (Lafayette Radio Station, France)

• Wire Rope & Fitting Schedule for 626’ Steel Guyed Mast, Portland Station

• Brochure regarding The New Ross Rapid Computer

• Notes and computations regarding Current Transformers, High Speed Keys and Condensers

• Notes and computations regarding 30 kW Key Voltage Equalizing Reactors

• Memorandum regarding operating two or more arcs on nearby antennas

• Report regarding Preliminary Summary of Los Angeles Power Machinery

• Memorandum regarding the proposed direct current generator characteristics for Federal Arc Radio Transmitters

Box 20: Correspondence and Related Documents (March 1921 – March 1922)

Elliott's memoranda to Beal outline requests for changes in the current research work arrangement, as well as discussions about Single Wave Patent Applications and the Poulsen Arc in Couple Circuits Additionally, Beal's memorandum to Schwerin addresses the Patent Application related to these topics.

The article discusses the elimination of harmonics through correspondence between Pratt and Elliott, focusing on various technical aspects such as the testing of control circuits at the Marsh Radio Station, mast and guy installation investigations, and antenna work for the Clearwater Station It highlights Beal's letters addressing high-speed signaling equipment, porcelain insulators to J S Lapp, and concerns raised by Mr Schwerin regarding guy insulation and potential fire hazards at the Marsh Station Additionally, it covers topics like Lapp porcelain tube tests, filter circuit patents, the Pearl Harbor loading inductor, and a preliminary report on a radiating system for the Shanghai Station, alongside innovations in heterodyne reception patents.

This article discusses the patentable features of a 1 kW arc and the resistance measurement conducted at Clearwater Radio Station It includes a report on uni-directional transmission and details the San Diego filter tests Additionally, it references Beal's memorandum to Elliott concerning the Marsh Station and D.G Marsh's correspondence with Beal regarding the implementation of 5 kW transmitters on Shipping Board vessels.

• Pratt material: o Pratt’s memorandum regarding Proposed Convention of Universal

The communication between Elliott and Pratt encompasses various technical discussions related to the Hillsboro Radio Station, including Elliott's memoranda on filter and transformer circuits, tuning the 2 kW installation on the U.S Coast Guard Cutter “Tampa,” and experiments on uni-directional transmission Additionally, Elliott provided insights on the 5 kW inductor and the testing of the 2 kW coil for the Beach Radio Station These documents reflect the collaborative efforts in enhancing radio communication technology.

J A Miller's correspondence with Elliott outlines the advancements in the Hillsboro, OR Radio Station, highlighting key developments such as the loading of inductors essential for the station's operation These letters provide a detailed account of the progress made in establishing the Hillsboro Radio Station, reflecting Miller's commitment to the project's success.

• Elliott’s notes regarding Multiplex Operation on Adjacent Antennas

• Federal Telegraph Company chart entitled “Characteristics of D.C Generators for Arc Radio Transmitters”

• Notes and computations regarding 350 - 1,000 kW Transmitters

• Supplementary Report to A.Y Tuel regarding 5 kW Arc Installations on the Atlantic Coast

• Draft report regarding Radio Frequency Current Transformers

• Technical Drawings regarding the 5 kW Uni-Wave Signaling System

• Draft report regarding Automatic Arc Adjustment

• Preliminary Report regarding 1,000 kW Power Plant from Chas C Moore & Company Engineers

• Telegrams regarding San Diego Radio Station Signal Results

• Expense Account from San Diego High Speed Tests Trip for the period April 30,

Elliott's memoranda detail advancements in the extension of monopoly over arc usage, focusing on the suppression of harmonic oscillations that cause interference Key topics include the implementation of Uni-Wave signaling, the complete disconnection of circuits, and the development of a Uni-Wave signaling system for Guam Additionally, the documents explore the operation of 30-kilowatt transmitters and arc converters on alternating current supply, emphasizing methods for parallel operation and stabilization Furthermore, they address circuits designed to enhance the efficiency of arc converters and the operation of hydrogen-exhausting arc chambers.

• Elliott’s notes, computations and data regarding Record of High Speed Tests with Uniwave Signaling System for the U.S Naval Radio Station at San Diego,

• Elliott’s notes, computations and data regarding A.C Arc Operations, Antenna Constants etc for Station with 2 Antennas, 1400 x 2800 ft., Guam, 30 kW Set, Loop - 70 x 45 x 30 x 45 sides, Paralleling Arcs, Directive Transmission Test, Directional Transmission

• Suydam’s memorandum regarding the variation of wave meter calibration in the laboratory

• Elliott’s letter to Augustus Taylor (Federal Telegraph Company Secretary) regarding patents for the alternating current operation of arc converters

• Technical drawings of Roebling’s Closed Sockets

• Memoranda, notes, computations and data regarding the Beach and Marsh Radio Stations

• Estimate of Number of Grid Resistors Required for Marsh and Hillsboro Radio Stations

• Tabulation of Radio Frequency Cables

• Correspondence regarding various Patent Applications

• Drawings pertaining to the 300 ft guyed steel masts

• Memoranda, notes and computations regarding air and oil condensers

• Memoranda regarding the 5 kW Inductor

• Elliott’s memorandum regarding 5 kW Alterations and Improvements

• Elliott’s memorandum to Kolster regarding Tests and Demonstrations of Dr McCaa’s Anti-Static Devices

• Correspondence regarding various Patent Applications

• Summary of time charges for various projects

• Memoranda and data regarding the Beach, Los Angeles, Marsh, and San Diego Radio Stations

• Draft report regarding the Operation of 5 kW CM-437 Arc for Shipboard Use

• Technical drawings of proposed 1,000 kW Radio Station

• Elliott’s memorandum regarding High Voltage Condensers

• Technical News Bulletin No 57, which contains article entitled “Capacity Effects in Inductance Coils”

Box 21: Correspondence and Related Documents (April 1922 – March 1923)

The article outlines key communications and documents involving Beal, including Elliott's resignation letter and their correspondence on various stations such as Marsh Station, Mare Island Navy Yard Station, and Clearwater Station, along with power equipment for a Chinese project It also highlights Beal's letters to Augustus Taylor about the San Diego High Power Station and to Chas B Wing concerning insulators for 1,000-foot steel masts in Shanghai Additionally, it mentions Beal's notice to staff about the prohibition of using Federal Telegraph Company equipment for personal purposes and includes transmission data from Ship Operator, along with related correspondence from D G Marsh, as well as Wing's letter regarding the hiring of Consulting Engineer Henry.

Goldmark to review Wing & Beebee’s designs

• Elliott’s draft consulting arrangement with the Federal Telegraph Company regarding his work on the Chinese project

• Elliott’s Letters of Introduction (for the Chinese project)

• Elliott’s Letter of Introduction (as written by J A Miller)

• Elliott’s correspondence to Schwerin regarding the withdrawal of his resignation from the Federal Telegraph Company and instead devoting six months to the Chinese project

• Correspondence regarding hiring Consulting Engineer Henry Goldmark for the Chinese project

• C C Moore & Company, Engineers’ proposal to Federal Telegraph regarding the building of Power Plants at Shanghai and Pekin

• Goldmark’s response to the Federal Telegraph Company

• Elliott’s letter to E P Clark of Los Angeles regarding Proposed Commercial Radio Telegraph System

• Chas B Wing’s notes on Design of Radio Towers

• Elliott’s draft report regarding the Selection of Sites Shanghai Transmitting and Receiving Stations

• Elliott’s Expense Account reports for the period April 26, 1922 through June 23,

1922 and for the period September 13 through September 22, 1922 (Mare Island

• Elliott’s Expense Account report for the period September, October and

• Elliott’s Expense Account report for the period September 1922 (for the Mare Island 100 kW Installation project)

• Installation of Compensating Circuits and the Pearl Harbor and Cavite High Power Stations

• Installation of Harmonic Suppression and Uni-Wave Signaling Circuits

• Notes regarding proposed 1,000 kW Radio Station

• Elliott’s notes regarding Suppression of Hum

• Report of Department of Commerce Conference on Radio Telephony

• Correspondence, receipts and brochures from Chinese suppliers and vendors

• Various social invitations (while in Pekin)

• Draft proposal to furnish materials for the Chinese project

Box 22: Correspondence and Related Documents (April 1923 – June 1924)

Elliott and Beal's correspondence includes a comprehensive list of completed laboratory reports from 1922 to early 1924, along with various accounting statements It also details the status of the 100 kW cathodes, carbon holders, and arc drawings, as well as a memorandum on the distribution of laboratory reports Additionally, the correspondence outlines the research work costs associated with the Chinese project for the period of September.

1, 1922 through November 30, 1922 o Discussions regarding Schwerin's request for Beal to review the

Between January 1, 1922, and November 30, 1923, preliminary engineering and drafting costs for the Chinese project included Professor Manning's completion of computations and a comprehensive list of blueprints for the 100 kW Arc Converter Laboratory equipment and anemometers were identified at the Marsh Station, alongside cost estimates for the Harbin 200 kW transmitter and the 100 kW, 200 kW, and 1,000 kW transmitter equipment A list of missing equipment and the status of blueprints for the 100 kW carbon rotating motor unit were documented, along with authorization for the manufacture of the 100 kW transmitting equipment for Shanghai, Peking, and Canton Additionally, updates on the drawings and manufacturing of the 100 kW and 1,000 kW Arcs were provided, as well as required drawings for the project The installation of an anemometer at the Marsh Station and the design of magnetic circuits for the 1,000 kW Arcs at both the Chinese and Lafayette Stations were also noted Finally, Elliott's correspondence with Beal outlined equipment to be manufactured by the Federal Telegraph Company for the Shanghai and Peking Radio Stations, while Beal instructed Elliott to halt all work on requisitions from the project.

Federal Telegraph Company of California (Chinese project) o Elliott's telegrams to Beal, Schwerin and Suydam from New York regarding various Chinese project issues (mostly telegrams to Beal)

The correspondence between Elliott and Wing includes key recommendations from John A Roebling's Sons Co for protecting guy cables on the 1,000-foot mast, as well as Goldmark's design suggestions for sheaves Letters from Whitecross Company, Ltd address concerns about guy cables and hoisting ropes for the mast W.A Manning discusses safety issues related to the 2,800-foot square antenna and its wind loading conditions Updates on the tracings of the 626-foot mast are also provided, alongside Goldmark's reports on the antenna system Elliott forwards all relevant blueprints, specifications, and reports for the 1,000-foot masts and counterweight towers intended for the Shanghai station Additionally, there is correspondence between Beal and Wing concerning challenges in the Chinese project, including antennas and wind pressure testing on cables Finally, Elliott shares insights from Goldmark’s review of the mast specifications and Roebling's standards for galvanized steel strands, followed by Wing's responses.

• Schwerin correspondence o Schwerin's letter to Taylor regarding Instructions For Completing

The article discusses preliminary designs for Shanghai Station, highlighting H Wallace's letter to Schwerin, which reports no damage from a typhoon that passed west of Shanghai Additionally, Elliott's correspondence with Schwerin covers his interviews with various Great Lakes steamship companies regarding the Kolster Radio Compass and requests that drafting personnel at the Palo Alto laboratory be dedicated solely to the Chinese Project Furthermore, Beal's letters to Schwerin outline the factory charges associated with the Chinese project from January 1, 1922, to November 30, 1922.

Goldmark's correspondence includes a detailed letter to Elliott outlining the findings from his review of the engineering plans for the 1,000-foot guyed towers associated with the Chinese project Additionally, he communicated with Wing about the optimal paint selection for the towers and the results of wind pressure experiments Furthermore, Goldmark addressed the specifications for the counterweight necessary for the 1,000-foot tower in his letter to Elliott.

W A Manning communicated with Elliott about Goldmark's report, highlighting the safety of the antenna system under steady winds below 124 mph Additionally, Manning submitted an invoice for engineering services related to the 1,000-foot guyed steel mast at the Shanghai Station His correspondence also included detailed letters addressing wind load considerations for antennas, complete with necessary computations.

Federal Telegraph Company Reports

Extent and Location: 2 linear feet, Boxes 23 through 27 (2003-36-100 through 2003-36- 119):

Elliott kept copies of 113 engineering reports while working at the Federal Telegraph Company, with a complete list accessible through History San Jose It's important to note that some reports are in draft form, some lack the engineer's signature, and over 20 reports do not have dates.

Federal Telegraph Company - Blueprints, Oversized Drawings and

Extent and Location: 1 folder and 12 map folders, Box 27, Map Folders H002265 through H002276 (2003-36-120 through 2003-36-133):

Box 27: Smaller Blueprints and Related Documents

Map Folder H002269: undated Blueprints from the Mare Island Naval Yard

• Blueprints/Plans for Buenos Ayres (Buenos Aires) Radio Station

• Elliott’s “Combined Wave Changes and Transfer Switches”

• “F” drawings of Arc Converter cooling plates, cover plates and poles

• Assorted wiring diagrams: induction motor, automatic timing relay, molded bakelite knob, time limit relay, Annapolis

• Two “Turn von 250m Hohe mit Zwischenglenk” by Haim(?), Lehmann & Co Mast Blueprints

• “F” Drawings of Antenna - 5 kW Arc Station

• “CM” Drawings of 2 kW Loading Inductor

• “BM” Drawings of 2 kW Carbon Holder

• “AM” Drawings of 2 kW Parts

• Wing & Beebee Series – “1000’ Steel Guyed Mast,” 16 Blueprints, CP - 89 through CP-95

• Assorted Blueprints for CM Parts, some for the Marsh Station and some for the Clearwater Station, 5 kW Arc Converters

• “BM” Blueprints of the Arc Radio Station, 5 kW Arc Land Station

• “AM” Drawings, including parts for 5 kW Loading Inductor, Terminal Board

• “AP” Drawings, horn fiber, lugs

• 1920 (November 20, 1920), Non-Blueprint Drawings of “12 Channel Radio Central” (Elliott and Miller)

• 1920 “Mast von 210m Hohe” CP - 118, 11 Mar 1920, Telefunken Berlin

• 1920 Sketch with pencil “Columns and Cable of Antenna Loading Inductor (August 20, 1920)”

• undated “Analysis of Antenna Pull Upon Mast”

• 1922 - Three Power Plant and Power House Designs by Chas C Moore & Co Engineers (October 1922)

• 1924 - Shanghai Station Drawings, majority were by Henry Goldmark,

• Blueprints – “Preliminary Antenna Design,” Parts CM 842 – 844

• Elliott Antenna Sketches dated September 25, 1923

Map Folder H002267: 1924 – “CM” Drawings, CM 622 through 1091

Map Folder H002268: 1924 - Non-Blueprint Drawings, includes wiring diagrams for Lafayette Radio Station, A.C and D.C Distribution

Map Folder H002266: January through September 1924 - Assorted Parts A and B

Federal Telegraph Company - Assorted Data, Computations and Sketches

Extent and Location: 1 linear foot, Boxes 28 and 29 (2003-36-134 through 2003-36-144)

• Computations and Test Data on Coupled Compensation Signaling Systems, 1918-

• 2 kW Sets: General Information and Summaries, 1918

• 100 kW Loading Inductor for Heʻeia (Hawaii), 1918 – 1919

• Design and Test Data - 5 kW Arc Radio Transmitter for Ship Service, 1922

• Radio Frequency Resistance of Antenna Wires, 1923 -1924

• Data Books for Single Wave Signaling at San Diego, February 1920 through September 1920

• Data Books, January 1921 through March 1921

• Assorted Computations and Sketches, February 1918 through April 1923

• Assorted Computations and Sketches, May 1923 through August 1926 and undated

Federal Telegraph Company - Work Diaries and Related Documents

Extent and Location: 2 folders, Box 30 (2003-36-145 through 2003-36-147)

• Blank Time Records with Job Numbers for the Chinese Project, January 11, 1924

• Work Diaries - Elliott - January 2, 1924 through October 4, 1924

• Work Diaries – C.H Suydam - January 2, 1924 through September 30, 1924

• Daily Summary – C.H Suydam - June 24, 25 and 28, 1924, August 12 through

16, 1924, August 26 through 27, 1924 and September 3, 10, 11, 13, 16, and 17,

• 1924Work Diaries - H.P Miller - January 2, 1924 through June 30, 1924 and August 7,

Federal Telegraph Company - Photographs

Extent and Location: 2 folders and 1 map folder, Box 59 and Map Folder H002780 (2003-36-148 and 2003-36-149)

Box 59: Photographs related to Elliott’s work with Federal Telegraph Company

Map Folder H002780: Map of the world showing all of the Federal Telegraph

The Federal Telegraph Company produces Arc Radio Transmitters with power outputs ranging from 2 to 1,000 kilowatts, focusing on high power stations exceeding 30 kW This map highlights the larger radio stations that utilize Federal Arc Radio technology, showcasing the company's significant contributions to the industry.

Transmitters No stations of less than 30 Kilowatts are shown A large number of smaller transmitters have been built for merchant and naval vessels and small land stations.”

Features three photographs: “U.S Naval High Power Radio Station, San Diego,

California”; “1,000 Kilowatt Arc Converter”; and “30 Kilowatt Arc Converter.”

Federal Telegraph Company - Assorted Documents

Extent and Location: 3 folders, Box 30 (2003-36-150 through 2003-36-153)

• 1911 American Institute of Electrical Engineers paper

• 1917 legal opinion regarding the Heterodyne Patent

• 1922 journal article entitled “An Elementary Discussion of Vector Analysis”

• 1925 University of Illinois Bulletin entitled “Investigation of Antennae By Means of Models”

• Elliott’s Federal Telegraph Company stationery

• Contents of Elliott’s Reference Binder, mostly Technical Drawings, Reference Charts and Experiment Notes

• Contents of Haraden Pratt’s Reference Binder, mostly equipment brochures, journal articles and three reports from the Mare Island Navy Yard Radio Laboratory

Galvin Manufacturing Corporation/Motorola, Inc

Extent and Location: 6.75 linear feet, 11 map folders and 77 photos, Boxes 31 through 44 and Map Folders H002943 through H002953 (2003-36-154 through 2003-36-366)

In 1937, Elliott showcased his innovative home radio set featuring clock and push button tuning to Paul Galvin of the Galvin Manufacturing Corporation This pivotal demonstration resulted in a licensing agreement that granted Galvin exclusive rights to use Elliott's tuner in automotive applications, leading to the development of a push button automobile radio.

Consulting Engineer Elliott contributed to the development of various radio apparatus, including a portable table model radio, military communication radio tuners, and a solenoid for mechanical push button tuners His work with Galvin from 1937 to 1945 is documented in a collection divided into six subseries: Correspondence and Related Documents, Technical Drawings for Tuners, Clocks, and Parts, Sketches, Blueprints and Oversized Drawings, Photographs, and Assorted Materials.

Correspondence and Related Documents

Location and Extent: 75 linear feet, Boxes 31 and 32 (2003-36-155 through 2003-36- 162)

Correspondence and Related Documents related to Elliott’s position as a Consulting Engineer with the Galvin Manufacturing Corporation/Motorola Inc

Box 31: Correspondence and Related Documents (1932-1942 and undated):

• Various correspondence between Galvin and the Warren Telechron Company regarding clocks and various clock parts (1938)

• 1938 memorandum regarding the Telechron Radio Station Pre-Selector Clock

• Newspaper clippings with General Electric Radio ads

• Internal correspondence between Elliott and other Galvin employees especially D.

• Correspondence between Elliott and various parts vendors regarding clocks and tuners parts and models

• Various technical drawings, computations, notes and sketches

Box 32: Correspondence and Related Documents (1943-1947, 1949 -1953 and undated):

• Internal correspondence between Elliott and other Galvin employees, especially

• Correspondence and photographs of Mitchell’s trip to Santa Fe, New Mexico Mitchell apparently was researching the possibility of setting up a Galvin engineering facility in Santa Fe.

• Correspondence and photographs regarding Elliott’s radio tuner

• Internal correspondence between Elliott and other Galvin employees, especially Walter H Stellner (Galvin Vice President)

• Correspondence between Haydon employees with various part vendors regarding the acquisition of clock parts

• Various blueprints, computations, notes and sketches

Galvin Manufacturing Corporation/Motorola Inc - Technical

Technical Drawings - Tuners, Clocks and Assorted Parts

Extent and Location: 5.25 linear feet, Boxes 32 through 43 (2003-36-163 through 2003- 36-198 and 2003-36-323 through 2003-36-339):

• Process Charts regarding the Model E-6-P Power Relay (1940)

• Process Chart regarding the Model E-15-T Electric Tuner (1940)

• SC and K Tuners (Shop Prints) (1940)

• Motor and Solenoid Assist Tuners (1940)

• E-24 Tuner (1940 Compact Auto Tuner), includes Process Chart - H Tuner (1940)

• Tuner Development Sketches and Drawings, includes Parts List (1940)

• E 15-16 Tuner - Model Shop Prints, including Miscellaneous Development Shop Prints (1940)

• Miscellaneous Shop Tuner Prints - E-24-T Compact Auto Tuner (1940)

• Slug Tuner disclosed to Foorman L Mueller (1944)

Box 36: Technical Drawings – Tuners (1942, 1945, 1946), Clocks (1935-1937,

• Wm Brown Prints of the 8 Button Home or Auto Tuner (1942)

• Gear and Tuner Sketches and Notes (1945)

• Tuner and Clocks - Prints and Sketches (1941 - 1945)

• Developmental Sketches of Clocks and Related Documents (1939 - 1945)

• 700 Clock - Die Cast Type (April 1945)

• Clock (Miscellaneous 1945/1946 and 1945 Clock Sketches)

• Clock and Gear Tuner (Sketches with Elliott’s April 19, 1945 letter to Legal Counsel Mueller)

• Miscellaneous Clock and Tuner Prints (1945 - 1946)

Box 41: Technical Drawings – Clocks (undated), Assorted Parts (1929, 1938-

• Miscellaneous Clock and Tuner Prints (undated)

Box 42: Technical Drawings – Assorted Parts (1940 – 1945 and undated)

• 1940 Shop Prints for Model Relays 2-Coils - Experimental and Final Forms

• Model Relays using Motor Thrust (1940)

• Combination Intermittent and Rotary Stops (1942 - 1943 and undated)

Box 43: Technical Drawings – Assorted Parts (1942 – 1945 and undated)

• Timer Prints (Parts Series #111 - #116, December 1944)

• Assorted Technical Drawings (October 1942, December 1942, April 1943, August

Galvin Manufacturing Corporation/Motorola Inc – Sketches

Extent and Location: 50 linear feet, Boxes 43 and 44 (2003-36-340 through 2003-36- 346):

• Sketches (October 1936, March 1939 through August 1939 and undated)

• Sketches, estimates, etc regarding the Home Tuner Set (March 1939 through October 1940 plus some undated sketches)

• Various computations, notes and data

• Sketches, notes and cost data (October 1939 through August 1940 and undated)

• Assorted sketches and notes (July 1937, March 1939, February 1940, April 1940 - June 1940, September 1940, April 1941, July 1941, September 1941, November

1941 - December 1941, January 1942 - February 1942, September 1942 - May

• Solenoid Tuner (December 1941 through February 1942 and undated)

• Gear Tuners (February 1942, December 1942, February 1943 through March 1943)

• Sketches, notes and computations (September 1942, December 1942, March 1943 through April 1943, April 1944 through December 1944, January 1945 through April 1945, August 1945 and undated)

• Assorted Sketches (January 1942, October 1942 - December 1942, April 1943, June 1943 - August 1943 and undated)

• Compact Gear Tuner Sketches (August 1944 - September 1944)

• Slug Tuner Sketches (July 1944, September 1944 and October 1944)

• Assorted Sketches and Notes (June 1945 - July 1945, September 1945 -

Galvin Manufacturing Corporation/Motorola Inc - Blueprints,

Blueprints, Oversized Drawings and Related Documents

Extent and Location: 11 map folders, Map Folders H002943 through H002953 (2003-36-

Map Folder H002944: Technical Drawings (undated)

• Clocks (1945) (Also refer to Box 40, Folder 5 for related drawings.)

• Clocks (1944) (Also refer to Box 38, Folder 1, for related drawings.)

• Assorted Parts (1945 - 1946) (Also refer to Box 42, Folder 3, for related drawings.)

• Patent Case 34 - Control Apparatus, RESTRICTED, March 1943, Part:

• "Ten Button Tuner Layout #6,” stamped CONFIDENTIAL, started

• “Tuner Layout,” RESTRICTED, March 22, 1943, used on G-200, for Aircraft Radio Receiver X ANB - R3

• Same as “Tuner Layout” above, but with handwritten notes.

Map Folder H002952: Technical Drawings (1942 - 1943 and undated)

Map Folder H002953: Technical Drawings (1942 - 1943 and undated)

Galvin Manufacturing Corporation/Motorola Inc – Photographs

Extent and Location: 3 file folders (77 photographs), Box 59 (2003-36-359 through 2003- 36-362):

Photographs of assorted clock faces and tuners, and scenes from the Galvin/Motorola assembly line and manufacturing facility.

Galvin Manufacturing Corporation/Motorola Inc – Assorted Materials

Extent and Location: 3 folders, Box 44 (2003-36-363 through 2003-36-366):

• Type E-2 Clock Control - Directions (undated)

• Station Call Number Tabs (Unidentified, undated)

• Part No 54X11670/Models 109K-1 and 109K-2, Instruction Manual (undated)

• Part No 38A15379/Model 82A - Instructions and Station Call Letter Tabs

• Part No 38A15381 - Instructions and Station Call Letter Tabs (undated)

• Part No 38A17229 - Instructions and Station Call Letter Tabs (undated)

• Part No 38A28256/Model 101C31 - Instructions and Station Call Letter Tabs (undated)

• Part No 38K11685 - Station Call Letter Tabs (undated)

• Models 83K1, 103K1 and 103CK2 - Service Manual - Form S-8-Q (October 1940)

• Police, Fire, Public Utility, Government FM Radio Communication Equipment Catalog (undated)

• Part No 38-K-11683 Call Letter Tabs and Celluloid Covers (5 sets, undated)

• Dumore High-Speed Grinders Reference Chart (undated)

• Admiral Touch-O-Matic Unit - Instruction Manual (undated)

• Newspaper clippings of Motorola Radio Ads (October 1938 and September 1941)

Victor Talking Machine Co./R.C.A - Victor Company, Inc

Extent and Location: 4 folders and 2 map folders, Boxes 45 and 59 and Map Folders H002955 and H002957 (2003-36-367 through 2003-36-374):

In early 1927, Elliott started designing and manufacturing home radio receivers for the Victor Talking Machine Company He served as a Consulting Engineer from 1929 to 1931 The collection is organized into four subseries: Correspondence and Related Documents, Technical Memos and Reports, and Photographs and Technical.

Victor Talking Machine Co./R.C.A - Victor Company, Inc -

Inc - Correspondence and Related Documents

• Correspondence (letters, memoranda and telegrams) between Elliott and various Victor employees (for example, Edward J Mastney and N.E Wundelich)

• Correspondence between Victor employees and various parts vendors

• Various notes, computations and sketches

• Correspondence between Elliott and R.C.A - Victor’s Patent Department regarding patents for the Stabilized Amplifier System (Serial No 311,491), Selective Radio Receiver (Serial No 271,862) and the Electronic Vacuum Tube System (Serial No 186,039)

• Correspondence between various Victor employees and various notes, computations and sketches

Victor Talking Machine Co./R.C.A - Victor Company, inc –

inc – Technical Memos and Reports

Extent and Location: 1 folder, including 18 photographs, Box 45 (2003-36-371 and 2003- 36-372):

• Report entitled ”A Report and Analysis of the Radiola 1930 Super-

• Elliott’s memorandum regarding the difficulties encountered in producing the

• Advance Development Division’s Engineering Memo regarding the Four- Circuit T.R.F Development Receiver (includes 13 photographs) (September 1930)

• Receiver Division’s Engineering Memo regarding the Performance of Atwater Kent model 70 Receiver, and Type N Speaker (includes three photographs) (November 1930)

• RCA Radiotron Company, Inc Manufacturer’s Bulletin regarding Tentative Information for Manufacturer’s on New RCA Radiotron and Cunningham Types: 2A7, 6A7, 2B7, 6B7 (includes five separate reports) (February 1933)

• Engineering Department’s Technical Report #49 regarding the Band-pass Tuned Radio Frequency Receivers of Six and Eight Tuned Circuits (includes two photographs) (August 1930)

• Engineering Department’s Technical Report #62 regarding the Development of Radio Receiver Equipped with ”Selectivity-Fidelity” Switching Means (September 1930)

Victor Talking Machine Co./R.C.A - Victor Company, Inc – Photographs

Extent and Location: 1 folder (4 photographs), Box 59 (2003-36-373):

Victor Talking Machine Co./R.C.A - Victor Company, Inc -

Extent and Location: 2 map folders (9 drawings), Map Folders H002955 and H002957 (2003-36-374):

• Condenser Shield - Screen Grid (EX 135 - 23) (November 1929)

• Radio Assembly - Screen Grid (EX 135 - 32) (November 1929)

• Receiver Assembly - 5 Cond system (EX 135 - 33) (November 1929)

• Receiver Base (Screen Grid) (EX 135 - 33) (December 1929)

• Unidentified, undated Drawing (appears to be part of 1929 group)

Radio Research Laboratory at Harvard University

Extent and Location: 25 linear feet, Boxes 45 and 46 and Map Folders H002958 and H002959 (2003-36-375 through 2003-36-380):

In February 1942, Dr Frederick E Terman convinced Elliott to join the Radar Counter- Measures Laboratory developing at the Massachusetts Institute of Technology

The Radio Research Laboratory, which eventually relocated to Harvard University, features a collection of documents detailing Elliott's consultancy work at the institution during that period.

1942 through 1945 and is divided into five subseries: Correspondence and Related Documents, Technical Manuals, Pamphlets and Reference Notebooks and Technical Drawings.

Radio Research Laboratory at Harvard University - Correspondence

• Terms of Elliott’s employment as a Consultant (April 1943)

• Elliott’s confidential memoranda discussing window cutters and dispensing equipment (“Window Program”) and related construction issues (1943 - 1944)

• Elliott’s providing copies of his license agreements with Galvin to the

Laboratory for inclusion in their confidential files (May 1944)

• Elliott’s “Permit Of Local Board For Registrant To Depart From The United States” (D.S.S Form 351) (August 1943)

In August 1943, Elliot received a letter from the Office of Scientific Research and Development, granting him authorization to travel abroad for specialized studies connected to the organization's war research program.

• Elliott's discussions with Galvin about producing his clock at Telechron (September 1945)

• Elliott's concerns regarding maintaining and conserving the Radio Research Laboratory's research facilities post-World War II (September 1945)

• Terman's letter (on Stanford University letterhead) to Elliott regarding

Terman's transition from the Radio Research Laboratory back to Stanford University (March 1946)

• Memoranda regarding classified materials checked out from the Laboratory’s Document Room (August 1944, October 1944 - November 1944) and Elliott's Document Room receipts (August 1943 - July 1945)

• Radio Research Laboratory Organization Chart (Restricted) (October 1944)

• Blank Employee Rating Sheet (undated)

• Blank Terminating Patent Statement and Agreement (undated)

• Terman's memorandum to the Radio Research Laboratory's Personnel

Department regarding Elliott's resignation from the Laboratory (August 1945)

• Various inter-office memoranda regarding Part-Time Outside Activities (June

1945), Invention Disclosures (undated), Return Travel and Household Moving Expenses (August 1945)

• "The R.R.L Scope" (Radio Research Laboratory Employee Newsletter) (January 1945)

• Advance Press Release entitled "How Radar Countermeasures Work," including cover memorandum from Terman (January 1946)

• Newspaper clippings regarding anti-radar device consisting of aluminum foil to limit

• Allied bombers and fighter plan losses in Europe (April 1944)

• Correspondence between Elliott and Legal Counsel Gaither regarding the Elliott's return travel and moving expenses from Cambridge, Massachusetts to Palo Alto, California (April 1945 - October 1945)

• Correspondence between Elliott and the Radio Research Laboratory's

Accounting Department regarding his travel and moving expenses, includes receipts and computations (September 1945 - March 1946)

• Elliott's letter to Legal Counsel Mueller regarding patent agreements with M.I.T and Harvard (August 1945)

• Correspondence between the Cambridge Signal Patent Agency (Army Service Forces, Radiation Laboratory, M.I.T.) and Elliott regarding one of Elliott's patent applications (November 1945 - December 1945)

• Newspaper clippings regarding the work at the Radio Research Laboratory at Harvard University (November 1945 and undated)

Radio Research Laboratory at Harvard University - Technical Manuals, Pamphlets and Reference Notebooks

Technical Manuals, Pamphlets and Reference Notebooks

Extent and Location: 50 linear feet, Box 46 (2003-36-379):

At the Radio Research Laboratory, Elliott preserved valuable technical manuals, pamphlets, and reference notebooks that were formerly owned by Colonel O W Miller from the M.I.T Radar School at the Army Electronics Training Center.

• Restricted War Department Technical Manual entitled “Antennas and Antenna Systems” (TM 11-314) (November 1943)

• War Department Technical Manual entitled “Radio Receiver R-80-( ) /PR

(Hallicrafters Sky Ranger Model S-39)” (TM 11-876)(May 1944)

• Joint Board on Scientific Information Policy Pamphlet entitled “Electronics Warfare A Report On Radar Countermeasures” (October 1945 with Elliott’s accompanying correspondence dated November 1945)

• Reference periodical entitled “Reference Sheets” by electronics (January 1946) There also appears to be other reference materials included inside the book.

• Reference book entitled “Cathode Modulation for Economical Radiotelephony” by Frank C Jones, Radio Engineer (1939) On the catalog’s spine, Elliott noted

“Cathode Modulation, Stancor Ham Manuel, RCA Guide Transmitting Tubes, Taylor Tubes Manual.” There also appears to be other reference materials included inside the book.

• Set of O W Miller’s Computation Books (February 1943, March 1943 and April

1943) On the notebooks spine, Elliott noted “M.I.T Notes on Radar (Col

Miller).” These notebooks were previously classified as Confidential.

Radio Research Laboratory at Harvard University - Technical Drawings

Extent and Location: 2 map folders (6 drawings), Map Folders H002958 and H002959 (2003-36-380):

• Unidentified (4 drawings) (January 1943 and April 1943)

Hewlett-Packard Company

Extent and Location: approximately 1.5 linear feet, Boxes 47 through 49, Map Folder H002963 (2003-36-381 through 2003-36-400):

The series encompasses documents from Elliott's consultancy with Hewlett-Packard from 1953 to the early 1960s, organized into six subseries: Correspondence and Related Documents, Technical Drawings and Related Documents, Technical Reports, Technical Articles, Brochures, Bulletins and Catalogs, and Assorted Materials.

Hewlett-Packard Company - Correspondence and Related Documents

• Internal correspondence between Elliott and other Hewlett-Packard Company employees

• Correspondence between Elliott and various parts vendors regarding electric motors

• Inter-office correspondence regarding the 560A Digital Recorder (printer)

(November 1956), including Elliott’s related memoranda (November 1956)

• Elliott’s “Summary of Tests on Six Magnets” (February 1957), “Memo Re Printer (April 1957), “Summary Of Tests On Eleven Magnets” (April 1957) and “Tests Upon Armatures” (April 1957)

Hewlett-Packard Company - Technical Drawings and Related Documents

Extent and Location: approximately 1.25 linear feet, Boxes 47 through 49, Map Folder H002963 (2003-36-382 through 2003-36-397):

• Assorted Technical Drawings and Related Drawings (February 1954 through June

• Technical Drawings of Crop Thinner - Clutch and Tuner (1954)

• Crop Thinner Parts, Clutch & Timer (March 1954, July 1954, October 1954 and November 1954)

• Gear Tuner - 3 Position (Parts Series 53M-S (1955), A5219, C5219, A5130, B5219 and A5130 (1955 and 1958))

• Original Tracings and Obsolete Drawings - Printer (1956)

• Inter-office correspondence regarding the In-Line Read-Out project (October 1957)

• Ball Bearing Digital Shaft Positioner (1957 and 1958)

• Latch Tuner and Baud Changer (1959)

• Oscilloscope Camera (Series 196A, 1959), includes written assembly procedures (September 1959)

• Clocks, Releases, etc (Development Tracings, 1962)

• Unidentified Technical Drawings (8 drawings) (1961, 1962 and 1966)

Hewlett-Packard Company - Technical Report

Includes a technical report entitled “A Small, Fast Digital Data Printer” by Edgar A Hilton and Harold Elliott (undated) The report includes two technical drawings, one graph and two photocopies of parts.

Hewlett-Packard Company - Technical Articles, Brochures, Bulletins

• Journal article entitled ‘Potentiometers,” by Nettleton and Dole, December 19,

1945 (Reprinted article from The Review of Scientific Instruments, Vol 17, No

10, 356-363, Oct., 1946) The article discusses the methods used to improve the performance of potentiometers in automatic electrical computing devices.

• Burton Manufacturing Co., Brochure (undated)

• Electronic Associates Incorporated, Brochure (circa 1954)

• General Radio Company, Bulletin (January 1955 issue)

• South Bend Lathe Works, Brochure (undated)

• Communication Products Company, Inc., Eight Catalogs and Bulletins (1954 - 1955)

• Fairchild Controls Corporation, Brochure (August 1955)

• Yuba Consolidated Industries, Inc., Yuba-Dalmotor Division Brochure, (June

• Air-Marine Motors, Inc., Brochure (undated)

• Norden-Ketay Corporation, Precision Components Division, Bulletin (undated)

• The General Industries Company, Catalog (undated)

• General Radio Company, Brochure (undated)

• Haydon Precision Switches, Catalog (undated)

Hewlett-Packard Company - Assorted Materials

Location and Extent: 1 folder, Box 49 (2003-36-400):

• Digital Printer Tape (also see Technical Report, Box 49, Folder 5)

• Plastic sheet with numbers (Unidentified, undated)

• Two magazine articles entitled “End to Explosion” and “Big Bomb Waves” (Time magazine, December 15, 1961)

• Magazine article entitled “Venus Observed” (Time magazine, September 7, 1962)

Other Companies

Extent and Location: approximately 1.5 linear feet plus 1 map folder, Boxes 50 through

The series consists of Elliott’s documents connected to the Arcturus Radio Tube

Company, Bell Telephone Laboratories, Inc., Lapp Insulator Co Inc., Litton Engineering Laboratories, Haydon Manufacturing Company, Inc., Oak Manufacturing Company,

General Electric Company, California Laundry Equipment Co., Noblitt-Sparks Industries, Inc., Zenith Radio Corporation, General Time Corporation, Telechron Inc., Coles Signal Laboratory, P.R Mallory & Co., Inc and the U.S Time Corporation

Box 50: Other Companies (1932, 1936 – 1936, 1941 – 1948 and undated)

The Arcturus Radio Tube Company engaged in various communications and agreements concerning the Wunderlich Tube, including an undated advertisement and a January 1932 letter requesting additional technical information to develop a data bulletin Throughout 1932, numerous parties corresponded with Arcturus to request samples and details about the tube, leading to discussions on its technical specifications, sales, and marketing In May 1932, the Arcturus Development Company granted Elliott a non-exclusive license to sublicense the manufacturing and sale of Wunderlich vacuum tubes Subsequently, in November 1937, Elliott provided Arcturus an exclusive license for the construction and sale of his preselector clock and automatic tuning mechanisms, with specific exceptions Further correspondence in 1948 involved Elliott requesting technical information from the Standard Arcturus Corporation regarding the Kotron selenium rectifier.

In 1936, correspondence between Elliott and R.F Mallina highlighted discussions about Elliott's inventions, while ongoing communications with Bell Telephone's patent attorney addressed the status of Elliott's patent applications and interference proceedings from 1936 to 1937 Additionally, a letter from Mallina to Elliott recommended reaching out to Westclox for further collaboration.

Lapp Insulator Co Inc engaged in correspondence with Litton Engineering Laboratories, specifically between Elliott and John S Lapp The discussion centered on Lapp's inquiry about the feasibility of utilizing a single mast as a radiator for a Chinese radio station project.

In 1937 and 1938, Co was invited to develop guy insulators, leading to correspondence between Elliott and Charles Litton regarding Elliott's various sketches Elliott requested that Litton and another individual witness, initial, and date his sketches for safekeeping Their correspondence in 1945 referenced V-J Day and highlighted Litton's challenges in securing mechanical personnel for post-war production.

In December 1939, Haydon Manufacturing Company, Inc entered into a license agreement with Elliott, permitting Haydon to manufacture, use, and sell Elliott’s preselector clock devices This agreement was accompanied by related correspondence from Legal Counsel Foorman Mueller and a draft license agreement, which was based on Elliott's prior agreement with Galvin Manufacturing Corporation Additionally, the folder contains correspondence from R.A Conover, the Vice President of Haydon, addressed to Elliott.

Between 1944 and 1945, correspondence between Elliott and A.W Haydon focused on the manufacture of Elliott’s preselector clock and Haydon's decision to end his relationship with the Haydon Manufacturing Company They discussed their mutual friend Walt Stellner at Galvin Manufacturing Corp, Haydon's health issues, and the scarcity of parts Additionally, the letters covered topics such as vacations, Elliott's business dealings with Galvin and General Electric, and Haydon's referral of Elliott's clock controls to Western Auto Supply and the Industrial Testing & Research Laboratories The correspondence also included details about business travel, Elliott's home in Menlo Park, and his work with Hewlett-Packard on the Precision Timer from 1944 to 1948.

The Oak Manufacturing Company engaged in significant correspondence with Elliott and Robert O’Reilly regarding the production of clocks and tuners, license agreements, and the purchase of electrical tuning mechanisms by the Radio Research Laboratory During the period from 1941 to 1943, Oak focused entirely on government and war production, while Elliott sought tuner parts in 1947 A draft license agreement from January 1942 granted Oak a non-exclusive license to manufacture Elliott’s Control Devices, with Galvin Manufacturing retaining specific rights for home and automobile radio receivers Subsequent discussions in October 1943 addressed royalty payments to Elliott Further correspondence involved Elliott's requests for tuner parts and a written agreement concerning Oak's use of his inventions, as well as issues related to the Mastney patent and government licenses Additionally, a newspaper clipping from January 1946 highlighted Oak's establishment of an employee retirement plan, accompanied by various notes, computations, and sketches related to these topics.

• General Electric Company o Correspondence between Elliott and various General Electric employees regarding a proposed license agreement covering Elliott's tuner patents

Between 1945 and 1946, correspondence occurred between Elliott and Legal Counsel Rowan Gaither and Foorman Mueller regarding a proposed license agreement with General Electric This agreement granted General Electric a non-exclusive license to manufacture, use, and sell licensed tuners for radio and wireline receivers across the United States and its territories Additionally, it permitted the use and sale of licensed tuners manufactured in the U.S and exported to countries where foreign patents had been issued In April 1946, Elliott communicated with various General Electric employees about applying his tuner to their radio receivers By September 1947, he described his Twelve Button Tuner with Automatic Band Switching, followed by discussions of his tuner models and expected compensation in July 1949 However, General Electric terminated the license agreement in September 1949 Elliott introduced his simplified radio clock and tuner to General Electric in January 1950, but they rejected it by September 1950 A brochure detailing General Electric's Electronics Park was also available during this period.

Telechron Inc correspondence reveals significant interactions between Elliott and various employees of the Warren Telechron Company concerning the application of Telechron motors This includes a 1945 Telechron catalog and communication with Alliance Manufacturing regarding a sample motor in 1947 Additionally, the collection features several magazine advertisements for Telechron products, including Timers (February 1945), Motors (August 1945), and Selectors (June and September 1945).

• Operating Instructions for General Electric’s Musaphonic Radio and Phonograph, Models 41, 42, 43, 44 and 45, includes Preliminary Service Data (A sample was loaned to Elliott in 1947.)

• Technical drawing of Musaphonic Part M - 73J644 (October 1945)

• Various notes, computations and sketches (1947)

Map Folder H002966: Oversized Technical Drawing of Musaphonic Part W -

49J405 (November 1946 with Elliott’s July 1947 notations)

• Oversized Technical Drawing of Musaphonic Part P - 64J688 (Escutcheon) (September 1946)

• Oversized Schematic Diagram of Musaphonic Part T - 75J104 (Power Unit) (November 1946)

• Oversized Technical Drawing of Musaphonic Part W - 49J383 (Cabinet) (October 1946)

• Oversized Schematic Diagram of Musaphonic Part W -49J405 (Parts List) (April 1947)

• California Laundry Equipment Co o Correspondence between Elliott and the California Laundry Equipment

In 1948, W.G Meyers Company engaged Elliott to design a timer for their laundry device, leading to the drafting of a license agreement that granted California Laundry Equipment Co a non-transferable, non-exclusive license to manufacture and utilize automatic control systems for laundry apparatus Correspondence between Elliott and Legal Counsel H Rowan Gaither further discussed the terms of this agreement, while additional communications with various part vendors focused on sourcing essential components such as electric switches, blades, motors, and gears The documentation also includes seven unidentified photographs of the California Laundry Equipment Co device, likely from the same year.

• Photographs and Negatives of Musaphonic Tuner Parts (14 Photographs and 17 Negatives) (1947)

• Correspondence between Elliott and R.P Spellman, Sales Manager at Noblitt-Sparks Industries, Inc., regarding Elliott’s proposal for his clock radio No action taken by Noblitt-Sparks (1950)

• Correspondence between Elliott and F.W Crotty from the Patent Department at the Zenith Radio Corporation regarding Elliott’s proposal for his new clocks and tuners No action taken by Zenith (1950)

• Correspondence from General Time Corporation employees responding to

Elliott’s proposal for his devices It appears that no action was ever taken by the General Time Corporation (1949, 1963 and 1966)

• Correspondence from Legal Counsel Dodds to Elliott regarding Elliott’s proposal to the General Time Corporation (1950)

• Correspondence from Telechron Inc employees responding to Elliott’s proposal for his preselector It appears that no action was taken by Telechron Inc (1950)

• Telechron policy brochure concerning the submission of ideas and inventions from persons outside the company (1948)

In December 1951, correspondence and related documents between Elliott and J H Durrer, the Chief of the Short Range Equipment Section at the Radio Communication Branch of the Coles Signal Laboratory, reveal that Elliott sold three Multiple Revolution Detent Dials to the laboratory.

• Correspondence between Elliott and P R Mallory & Co regarding Elliott’s Multiple Revolution Detent Dial (May 1951)

• Elliott’s letter to Leon Linn (P R Mallory & Co Vice President) regarding P.R Mallory’s rejection of Elliott’s range timer (August 1964)

• Correspondence between Elliott and Legal Counsel Laurence Dodds regarding Elliott’s proposals for his timer and preselector clocks to the U.S Time

• Elliott’s letter to Joakim M Lehmkuhl (U.S Time Corporation’s President) introducing his timer and preselector clocks Includes Elliott’s written proposals (February 1958)

• Telegram from the U.S Time Corporation stating they were not interested in Elliott’s devices (April 1958)

• Time Magazine article regarding Lehmkuhl (December 1955)

Assorted Professional Materials

Extent and Location: 2.25 linear feet plus 25 map folders and 1 oversized box, Boxes 52 through 56 and Box 60, Map Folders H002971 through H002995 (2003-36-422 through 2003-36-444, 2003-36-447, 2003-36-457, 2003-36-458 and 2003-36-465):

This series is divided into eight subseries: Correspondence and Related Documents, Technical Drawings, Oversized Drawings and Related Documents, Technical

Manuscripts, Marketing Proposals, Photographs, Technical Pamphlets, Brochures and Catalogs, Professional Organizations - Correspondence and Related Documents and Oversized Articles and Related Documents.

Assorted Professional Materials Correspondence and Related Documents

Box 52: Correspondence and Related Documents (1923-1943 and undated)

• Elliott's handwritten article entitled "The General Electric - R.C.A - Stock

• Response from The Business Economic Digest regarding Elliott's cancellation of his subscription (May 1931)

• Correspondence between Elliott and part vendors (1923 - 1927)

• Correspondence between Elliott and C F Elwell regarding television and radio patents (January 1933, May 1933 and undated)

• Correspondence from J A Miller to Elliott regarding television systems (1936)

• Elliott's letter to the Durango, Colorado Office of Records requesting a copy of his birth certificate (1936)

• Elliott's letter to G H Lewis, thanking Lewis for testifying at Elliott's

• Fred Terman's letter to Elliott, mentions I.R.E convention, recent radio industry developments, C H Suydam (June 1938)

• W Noel Eldred's letters to Elliott, mentions Terman, Elliott's automobile receiver with push-button control and a possible business opportunity (August 1938 and October 1938)

• Correspondence between Elliott and Victor Lespinasse regarding Elliott's licensing agreement with Galvin (October 1938)

• Elliott's correspondence with banks and stock brokers directing his funds (1937 and 1938)

In November 1940, a questionnaire from the U.S Government's National Roster of Scientific and Specialized Personnel sought information about Elliott's engineering skills It is noted that Elliott likely copied and laminated his completed questionnaire for preservation.

• Correspondence between Elliott and Lincoln Walsh regarding patent interference

• Correspondence between Elliott and George T Royden regarding Terman's article about the Stanford men who got into radio via the Federal Telegraph Company (1940)

• Elliott's correspondence to First National Bank and Wells Fargo Bank regarding depositing his funds (1940)

Box 53: Correspondence and Related Documents (1944-1966)

• Correspondence between Elliott and Lincoln Walsh regarding post-war work

• Correspondence between Elliott and Allen Stimson (General Electric) Stimson was interested in hiring Elliott (1945)

• Newspaper clipping (probably 1945) listing the Stanford men who worked at the Federal Telegraph Company's laboratory in Palo Alto, California in 1919

• Correspondence between Elliott and vendors (1944 and 1945)

• Correspondence between Elliott and W Wesley Hicks (Wesix Electric Heater Co.) (1949)

• Correspondence and notes regarding Elliott's 1949 trip to New York and his later trips to Chicago

• Introduction letter for Elliott from Dr Terman to Donald Mitchell (President of Sylvania Electric Products Company) (1949)

• Correspondence between Elliott and various professional contacts regarding his clocks and tuners, timing and tuning mechanisms and detent dial (1949, 1950 and 1952)

• Elliott's written recommendation for N E Wunderlich (Appears to be an undated draft letter.)

Assorted Professional Materials – Elliott Technical Drawings,

Drawings, Oversized Drawings and Related Documents

Extent and Location: 50 linear foot plus 25 map folders, Box 54 and Map Folders

• Sketches of Self-Neutralized Push Pull Systems (1934)

• Models G and H (Range and TV Clocks) (1964)

• Spring Activator for Camera Shuttle (1962)

Map Folder H002971-75: Technical Drawings (undated)

Map Folder H002976: Technical Drawings (Unidentified, Assorted, Auto Theft

Map Folder H002977: Technical Drawings (Blueprints, appears to be a hinged box with nickel-plated parts) (1924, 1925)

Map Folder H002978: Technical Drawings (Blueprints, Appear to be Clock Face

Map Folder H002979: Technical Drawings (Assorted Tuner and Clock

Map Folder H002980: Technical Drawings (Diazo, Clock Radio Tuner, some drawings have extensive notes regarding testing) (1936-1939)

Map Folder H002981: Technical Drawings (White paper, Clock Radio Tuner, assembly and circuitry, some drawings have extensive notes regarding assembly and testing) (1938-1939)

Map Folder H002982: Technical Drawings (Pencil on Vellum, Parts, Clock

Map Folder H002983: Technical Drawings (Pencil on Vellum/Tissue, Very detailed drawings of Parts, likely Clock Radio Tuner or related) (1942-1944)

Map Folder H002984: Technical Drawings (Pencil on Vellum/Tracing Paper,

Detailed Parts, Technical Drawings for Radio Tuner) (1945-1949)

Map Folder H002985: Technical Drawings (Tracing Paper, Parts drawings by

Map Folder H002986: Technical Drawings (Blue-Tinted Vellum, Assorted Parts)

Map Folder H002987: Technical Drawings (Diazo, Drawings appear to be on

Galvin/Motorola paper, Clock Tuner Parts, Production drawings) (1940)

Map Folder H002988: Technical Drawings (Diazo, Clock Tuner Parts,

Map Folder H002989: Technical Drawings (Diazo, Tuner Parts, Washing

Map Folder H002990: Technical Drawings (Diazo, 6-Position Tuner, Clock

Face, Washing Machine/Dryer Timer Dials) (1945-1949)

Map Folder H002991: Technical Drawings (Blueprints, Radio Tuner/Clock)

Map Folder H002992: Technical Drawings (Diazo, Appears to be a Clock/Alarm,

Mechanisms, Faces) (1950-1953) and Probably Detent Dial Drawings (1951))

Map Folder H002993: Technical Drawings (White Wax Paper, Timer Clock

Faces, Mechanisms, "8 Position 64 Turn Detent Dial") (1950-1953)

Map Folder H002994: Technical Drawings ("Magic Memory Clock,"

Map Folder H002995: Technical Drawings (Diazo, "Magic Memory Clock,"

Assorted Professional Materials Technical Manuscripts

• Elliott's Patent Specifications for an Electric Burglar Alarm (undated)

• Elliott's manuscript entitled "An Engineer's Viewpoint" (undated)

• Elliott's manuscript entitled "Kinetic Ether Theory Speculations upon Some Problems in Contemporary Physics" (June 1952)

Assorted Professional Materials Marketing Proposals

Extent and Location: 3 folders, Box 55 (2003-36-444): undated

• Abstract of Elliott's Patent Application for his Time Control Device

• Marketing Proposal for Latch Type Multiple Revolution Tuners (Includes

• Marketing Proposal for Multiple Revolution Gear Type Tuners (with Technical Drawing.)

• Marketing Proposal for Elliott Precision Timer

• Marketing Proposal for Clocks and Timers (Includes copies of two photos)

• Technical Drawing of Circuits for Clock Control of 12 Channel Switch Operated Television Set (December 1948)

• Marketing Proposal for Radio Clocks and Tuners (1949)

• Marketing Proposal for Radio Clocks and Tuners (This appears to be the same

1949 proposal as above; however, this proposal includes four photos and was sent to Ray Spellman of Columbus, Ohio.)

• Technical Drawings of Multiple Revolution Tuners (July 1949)

• Technical Drawings of Miscellaneous Clock and Television Circuits (September 1950)

• Technical Drawing of Clock Face and Switches in Clock (September 1950)

• Marketing Proposal for Double Latch Automatic Tuner (May 1951)

• Marketing Proposal for Multiple Revolution Detent Dials (May 1951)

• Marketing Proposal for Multiple Revolution Detent Dial (July 1951)

• Technical Drawing of 100 Channel Automatic Tuner (July 1951)

• Marketing Proposal for Double Latch Automatic Tuner (Includes small photo, July 1951)

• Marketing Proposal for Double Latch Automatic Tuner (This appears to be the same proposal, but includes a different photo.)

• Marketing Proposal for Preselector Clocks (Includes photo, July 1951)

• Marketing Proposal for Six Channel Detent Dial (Includes two small photos, February 1952)

• Marketing Proposal for Elliott Precision Timer (January 1953, includes one photo.)

• Marketing Proposal for Elliott Gear Tuners (two copies: both proposals are dated July 1953, but the text differs on the second page of the second proposal.)

• Marketing Proposal for Elliott Precision Timer (August 1953)

• Marketing Proposal for Elliott Precision Timer (This proposal appears to have been revised during August 1953.)

• Marketing Proposal for Double Latch Automatic Tuner (This appears to be the same 1951 proposal as mentioned above, but now includes a different photo and was stored in a 1955 envelope.)

• Marketing Proposal for Multiple Revolution Detent Dials (This appears to be the same 1951 proposal as mentioned above, but now includes a photo and was stored in a 1955 envelope.)

• Marketing Proposal for Elliott Precision Timer (Includes two photos, November 1957)

• Marketing Proposal for Preselector Clocks (Includes two photos, November 1957)

• Marketing Proposal for Preselector Clocks (This appears to be the same

November 1957 proposal as above, but includes a different photo.)

• Photos of Radio Clocks (Five photos, originals and prints, 1957 and 1958)

• Marketing Proposal for De Luxe Precision Timers - 1963 - 1966 For T.V., Radio and Appliances (Includes two photos, August 1966)

Assorted Professional Materials Photographs

Extent and Location: 1.5 linear feet, Boxes 57 through 59 (2003-36-447):

The article highlights a collection of black and white photographs captured by Harold Elliott, showcasing his inventions, particularly his radio clock and tuner components It also features professional portraits of Elliott alongside his relay set and clock, taken by Berton Crandall in Palo Alto, California, between 1937 and 1941 Some of these images were included in the 1941 article "Stanford in Radio," which was part of the broader feature "Stanford on the Job in Electrical."

Assorted Professional Materials Technical Pamphlets, Brochures

Extent and Location: 25 linear feet, Boxes 55 and 56 (2003-36-457)

Includes radio and electronic equipment pamphlets and brochures, technical bulletins.

• John A Roebling's Sons Company - Price List (September 1922)

• Assorted Radio Pamphlets and Brochures (1922, 1924, 1929, 1931, 1933, 1934,

• Assorted Technical Bulletins, Chassis, Layouts, etc (1931)

• Bulletins and Circuit Data - Majestic, Weston, General Electric (1929-1934)

• Bulletins from Leeds & Northrup - Micromax (1931-1934)

• Assorted Electronic Apparatus Pamphlets and Brochures (1959-1969, undated)

• Daystrom Pacific Potentiometer Catalog Index (August 1960)

• New Hampshire Ball Bearings Inc Design and Purchasing Manual (1959)

Assorted Professional Materials Professional Organizations -

Organizations - Correspondence and Related Documents

• Engineers' Club of San Francisco - Dining Room receipts (1933, 1934), Dues receipts (1932 - 1936), Luncheon invitation (undated), Various correspondence, including President's Reports (1933, 1936, 1939, 1941, 1948 and 1949)

• American Institute of Electrical Engineers (A.I.E.E.) - San Francisco Section

Bulletins (1932), Journal receipts (1923, 1933, 1934, 1935, Elliott's discussion papers (August 1924 and October 1924), Various correspondence (1937, 1945 and 1946)

• The Institute of Radio Engineers (I.R.E.) - Journal receipts (1933, 1934, 1936),

• Boy Scouts of America - Wireless Telegraphy article from the 1911 Handbook

• Radio Law - Notes from the Third National Radio Conference (1923 and 1924)

• Direct mailings and other correspondence from the various professional organizations: American Association for the Advancement of Science (1930 and

1947), American Association of Engineers (1919), American Radio Association

The American Radio Relay League was established in 1923, followed by the formation of the American Television Laboratory Ltd in 1933, with subsequent activities in 1945 and 1948 The Emergency Committee of Atomic Scientists was formed in 1948, and The Institute of Electrical and Electronics Engineers, Inc was founded in 1969 Additionally, The Society for the Promotion of Research and the Thomas Alva Edison Foundation, Inc have contributed to advancements in technology and science.

(1948), The Radio Club of America (1931, 1933)

Assorted Professional Materials Oversized Articles and Related Documents

Extent and Location: 1 Oversized Box, Box 60 (2003-36-465):

• Photograph of the Victoria Jubilee Bridge, near Montreal, Quebec (undated)

• Advertisement for The Minute Man Blueprint Machine (undated)

• Clock Face designs for Timer and Television Clock (in small box, Bar Code H024002)

• Clock Face designs for "Precision Timer" and "Magic Memory Television Clock" (circa 1963)

• Technical Drawing from Ampex regarding the Schematic Regulated Power Supply, Cat No 50148 - 1 (1959)

• Reference chart from Electrical World magazine entitled "Charts for Quick Solution of About 95 Per Cent of Line Drop Problems" (May 1921)

• Reference chart from the Pennsylvania Testing Laboratory regarding Inductance and Wave Length (1947)

• Reference chart from the General Radio Company entitled "A Convenient

Inductance Chart For Single-Layer Solenoids" (undated)

In January 1917, the Navy Department Advisory Committee for Aeronautics conducted confidential tests comparing the performance of smooth and stranded wires inclined to the wind direction, as detailed in Reports and Memoranda (New Series, No 307) The study also included a comparative analysis of stranded wires tested in both air and water, providing valuable insights into their aerodynamic and hydrodynamic properties.

• Photostat - Civil Engineering article regarding Sainte-Assise, France Radio Station (in French, from Le Genie Civil, 2 Juin 1923)

• Collins Radio Company Technical Drawing - 496E-1 Multiturn Autotune,

Harold F and Winifred E Elliott Personal Papers

Extent and Location: 8.25 linear feet, Boxes 62 through 76 (2003-36-200 through 2003- 36-321):

The collection features personal correspondence, financial and real estate records, educational materials, various references, and photographs belonging to Harold F Elliott and his wife Winifred Estabrook Elliott It includes Elliott's architectural plans and drawings for their residence at 800 Westridge Drive, Portola Valley, California, as well as personal photographs documenting his life from his student days at Stanford (1911-1916) to artistic images of the Santa Cruz Mountain foothills taken between 1950 and 1970.

Correspondence

The personal correspondence between Harold F Elliott and Winifred Estabrook Elliott captures their relationship during courtship and the early years of marriage, alongside letters exchanged with family members, including Harold's mother and Winifred's sister, Marion This collection also highlights Harold's passion for photography and his role at Stanford University as a lecturer from 1932 to 1946, as well as his involvement in class fundraising during the 1950s and 1960s Additionally, it contains assorted financial and mail order correspondence, providing a comprehensive view of their personal and professional lives.

Financial and Household Records

The medical records and correspondence of Harold and Winifred Elliott encompass various aspects of their lives, including Harold's diabetes management, automobile insurance, maintenance records, banking and investment documentation, tax filings, and household moving receipts Additionally, this subseries features architectural and interior design plans for the home Harold designed at 800 Westridge Drive in Portola Valley, California, alongside Westridge subdivision architectural committee documents and insights into the debate surrounding Portola Valley's incorporation from 1957 to 1960.

Educational materials

Extent and Location: 5 linear feet, Box 71 (2003-36-251 through 2003-36-257):

Harold Elliott's loose notes and instructional texts from his courses at the Stanford

The University Graduate School of Business, established in 1933-1934, along with Winifred Estabrook's educational resources from San Jose State Normal School and Stanford University, highlights a significant academic legacy Notably, her handwritten lecture notes from summer courses at Stanford serve as a valuable historical record of educational practices during that era.

The documents from the University dating back to 1918 and 1920 include materials from Lewis Terman's class on school children's hygiene, along with lecture notes from courses taught by Pauline Sears and Ephraim Douglas Adams.

Assorted reference and mementos

The collection includes a few childhood mementos of Winifred Estabrook Elliott, notably her personal diary from 1909 to 1911 Additionally, it features various reference materials belonging to Harold and Winifred Elliott, such as travel brochures, investment circulars, programs from musical performances and art exhibitions, photography equipment brochures, and news clippings that highlight Harold Elliott's photography exhibitions and lectures at local photography clubs between 1906 and 1953.

Tiêu đề	Guide to the Harold F. Elliott Papers
Trường học	History San Jose Research Library & Archives
Thể loại	guide
Năm xuất bản	2013
Thành phố	San Jose

Định dạng
Số trang	55
Dung lượng	384 KB