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. on available patent specifications for the week ending 4th April 1940.
| Identifier | ExFiles\Box 147\2\ scan0280 | |
| Date | 4th April 1940 | |
| OUTSIDE PATENT SEARCHES. REPORT BY CLAREMONT HAYNES, & CO. Week ending 4th April 1940. SPECIFICATIONS WHICH HAVE BECOME AVAILABLE ---------- (Opposition date 24th May 1940) ---------- No. Patentee. Title. To Da{Bernard Day - Chassis Design} 518,687 F.Porsche. Improvements in and relating to Sheet Metal Doors. E 518,711 D.Napier & Sons Ltd. F.B.Halford and W.P.Arscott Improvements in or relating to Gearing for Transmitting Power. E 518,799 R.T.Shevlin Improvements in or relating to Automatic Control arrangements for Aeroplanes. E 518,868 H.R.Ricardo Improvements in or relating to Cylinder Structures for Internal Combustion Engines. E 518,873 The De Havilland Aircraft Co., and F.M.Thomas Improvements relating to Spinners and like Fairings for Airscrews. E 518,874 " Improvements relating to Airscrews. E 518,892 W.O.Benjafield Airplane Screw Propeller. E 518,895 Bayerische Motoren Werke A.G and Dr. T.Helmbold Improvements in or relating to Rotary sleeve valve engines operating with liquid fuel injection. | ||