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 search applications for the week ending 11th January 1940.
| Identifier | ExFiles\Box 147\2\ scan0172 | |
| Date | 11th January 1940 | |
| OUTSIDE PATENT SEARCHES. REPORT BY CLAREMONT HAYNES & CO. Week ending 11th January 1940 APPLICATIONS. No. Patentee. Title. 521 Constant Speed Airscrews Ltd., and F.G.Marshall. Fastenings for Cowlings etc., for aircraft. 282 General Motors Corporation. Mercury interrupters for electric circuits. 283 " Indicating mechanism. 463 Kollsman Instrument Co.Inc. Power transmission devices. 218 C.Lander. Variable pitch airscrews. 517 Vauxhall Motors Ltd and D.B.Foster. Apparatus for cleaning gases by electrical discharges. 455 G.L.Wilde Super-charging of internal combustion engines. --------- 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. | ||