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 outside patent searches for the week ending 14th September 1939.
| Identifier | ExFiles\Box 147\2\ scan0091 | |
| Date | 14th September 1939 | |
| 646 OUTSIDE PATENT SEARCHES REPORT BY CLAREMONT HAYNES & CO. WEEK ENDING 14th SEPTEMBER 1939 APPLICATIONS No. Patentee Title 25317 Bayerische Motoren Werke A.G. Air cooled internal combustion engines 25318 Ditto Cooling spherical rotary valves for controlling internal combustion engines 25684 Bendix Aviation Corporation Indicating instruments 25473 Bristol Aeroplane Co.Ltd. and A.H.R. Fedden Fluid transmission circuits in variable pitch airscrews 25770 Bristol Aeroplane Co.Ltd., Prise L.G. and W.G.Morgan Cooling arrangements for air cooled aircraft engines 25474 Bristol Aeroplane Co.Ltd. and H.C. Mansell Piston rings 25360 British Aluminium Co.Ltd. and J.T. Richmond. Surface treatment of aluminium and aluminium alloys 25231 Chrysler Corporation Power transmission systems for motor vehicles 25232 Ditto Power transmission systems for motor vehicles 25171 Constant Speed Airscrews Ltd. and F.G.Marshall Closure Device 25489 Ditto Spinners for hubs of airscrews 25315 H.{Arthur M. Hanbury - Head Complaints} Fairbrother (Bayerische Motoren Werke Akt.Ges.) Preventing formation of oil froth in oil circulation of internal combustion engines in aircraft 25422 General Motors Corporation Electric circuit controlling device 25390 R.{Sir Henry Royce} J.{Mr Johnson W.M.} Ilfield Controlled differential mechanism 25391 Ditto Restricted differential change speed mechanism | ||