From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Outside patent searches by Claremont Haynes & Co., listing available specifications.
| Identifier | ExFiles\Box 147\3\ scan0114 | |
| Date | 7th July 1938 | |
| 646 OUTSIDE PATENT SEARCHES. REPORT BY CLAREMONT HAYNES & CO. Week ending 7th July 1938. SPECIFICATIONS which have become available (Opposition date 22nd August 1938) ----------------- No. Patentee. Title. By 486,532 Armstrong Siddeley Motors Ltd., and Christopher Sibley Oliver Constant-mesh Gear-box By 486,567 " " " " By 486,578 General Motors Corporation Improvements in Epicyclic Gear. By 486,589 Harold Sinclair Improvements in or relating to Variable-speed Power-transmission Gearing. By 486,727 Franz Schmid Improvements in or relating to Change Speed Mechanisms. ξ 486,740 Junkers Flugzeug-und-Motorenwerke A.G. Improvements in and relating to Reciprocating Liquid Pressure Pumps By 486,837 Max Goldschmidt (Communication from John Wycliffe Leighton. U.S.A- Improvements in Independent Wheel Suspension Arrangements for Vehicles. ξ 486,919 Bruno Jablonsky Improvements in or relating to Airscrews. ξ 486,759 The Bristol Aeroplane Co, and John Maurice Radcliffe Improvements in Aircraft ----------------- | ||