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).
Report by Claremont Haynes & Co. listing available patent specifications.
| Identifier | ExFiles\Box 147\2\ scan0235 | |
| Date | 15th February 1940 | |
| OUTSIDE PATENT SEARCHES. REPORT BY CLAREMONT HAYNES & CO. Week ending 15th February 1940. SPECIFICATIONS which have become available. -------------------- (Opposition date 1st April 1940 ) ------- No. Patentee. Title. Dm{D. Munro} 516,963 Anton Ryba G.m.b.H Improvements in or relating to Electromagnetic Plate Friction Clutches. E 516,997 Maurice Francois Improvements in and relating to the resilient Mounting of Aeroplane Propellers or Propeller Spinners Alexandre Julien E 517,013 Aviation Patents Improvements in or relating to Controllable Pitch Propellers and Method of Varying the pitch of a Propeller. Inc. E 517,014 Argus Motoren- Centrifugal Governors, particularly for Adjustable Air Propellers. G.M.B.G E 517,018 Aviation Patents Improvements in or relating to Variable Pitch Propellers and Method of Varying the Pitch of a Propeller Inc. E 517,028 Edward Dodson Improvements in or relating to Altitude Control Means for Carburetters for Internal Combustion engines. | ||