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ROLAND D. EATON : 1930s SUPERB NOTEBOOK OF EARLY 20th CENTURY INVENTOR DETAILING HIS DOZENS OF INVENTIONS AND PATENTS MOSTLY IN THE NEW AND EMERGING TECHNOLOGIES OF THE DAY THAT HAVE RESONANCE TO THIS DAY

12mo - over 6¾" - 7¾" tall. On offer is a splendid journal/notebook by a prolific inventor in the early 20th century. The journal measures 7.5 inches by 5 inches and is in excellent condition. It contains 200 pages and they are 100% filled. Roland D. Eaton is a very creative and prolific inventor and this journal is a testament to a man with a very agile mind. The journal dates from 1936-37. It is chock full of notes, calculations, explanations and drawings of items. In the Index, he lists 72 different processes or inventions that he has created or is working on. Examples include: 3 Inch Cathode Ray Part List including a detailed drawing of the device [p. 3], Spraying Screen Techniques for Bulbs [p. 6], Mirror Tube Design [p. 11] Magnetic Iconoscope - Ideas [p. 26], Low Voltage Cathode Ray Tube [p. 125]. Some entries are discussions he has had with others. For example, on Nov 1st, 1936, he visited a man named Ressler and they discussed electron aberrations: Discussion on Electron Optics with Ressler [p. 19]. Other entries are descriptions of experiments such as Design of Typewriter Tube Containing 42 Characters [p. 53], Aviation Instrument [p. 57], Stroboscopic Current Applications [p. 111] and much more. Attached to p. 94 is a typewritten statement explaining how he invented a vacuum-walled drinking glass in May, 1937. It bears the witness signatures of 3 other men. The notebook is filled with detailed, annotated drawings. There are tables and many calculations to support the conclusions that he is drawing. Entries are signed and dated and show that Eaton was engaged in his experiments and discoveries on a daily basis. His output was substantial. While biographical date is not available, it is noteworthy that there are 8 patents issued to a Roland D Eaton between 1931 and 1954. All were in the field of optics and were taken up by various industries field such as Fairfield Camera Corp. and Allen B. Du Mont Laboratories, Inc. Eaton was clearly a brilliant man and his notebook is an excellent record of the types of investigations being pursued in the years before WWII. Some of them had application in the soon to develop television industry. This would be an excellent resource for a someone researching the early development of this field as it points to the lines of investigation many were exploring as this new world of electronics was opening.. Illustr.: /. Manuscript. Book Condition: Very Good

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