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 patent applications with their corresponding numbers, patentees, and titles.
| Identifier | ExFiles\Box 147\2\ scan0019 | |
| Date | 2nd March 1939 guessed | |
| No. Patentee. Title. 5252 Naylor Bros.Ltd., and Power transmission gearing B.Vallance. 5253 " " Automatic control means for variable transmission gearing 5254 " " Variable speed power transmission 5441 " " Centrifugal clutches. 5550 N.B.Newton Suspension systems for vehicles 5646 T.Powell and Wheel suspensions Universal Power Drives Ltd. 5957 L.Renault Injection pumps for internal combustion engines 5863 J.Smith Pre-selective gear-changing mechanism 5237 G.E.Stanley Plate clutches 5453 " " " 5335 United Aircraft Propellers. Corporation. 5336 " " " " 5668 Zavody Ringhoffer- Half-axles for steering Tatra Akciova wheels in motor vehicles. Spolecnost ------------------------- It should be noted that it is not possible to obtain further information regarding the above until or unless the applications are completed and published. | ||