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).
List of patents detailing the patent number, patentee, and title of the invention.
| Identifier | ExFiles\Box 147\1\ scan0105 | |
| Date | 1st July 1937 guessed | |
| No. Name of Patentee Title. 458,700 Alfred Hubert Roy{Sir Henry Royce} Fedden and The Bristol Aeroplane Co.Ltd. Improvements in or relating to Throttle Controls for Internal Combustion Engines. 458,712 Heinz Nachod Improvements in Fluid Pressure Engines, Pumps and Compressors. 458,797 Percy Richardson Improved Slider-crank Mechanism for Use in Variable Speed and/or Reversing Gearing 458,591. Propello Inventions Ltd and Joseph Yoxall Improvements in or relating to Variable Speed Gearing. 458,592 General Motors Corporation Improvements relating to Electrical Ignition Systems. | ||