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 numbers, patentees, and titles.
| Identifier | ExFiles\Box 147\3\ scan0041 | |
| Date | 1st March 1938 guessed | |
| No. Name of Patentee. Title. 34750 Propello Inventions Ltd. Power transmission mechanism. 34071 Z.F.Rumpler Epicyclic change-speed gears. 34281 G.B.Sankey and J.V Sankey Power transmission mechanism. 34585 Soc.d'Inventions Aeronautiques et Mecaniques S.I.A.M Variable pitch propellers. 34586 " " Roller bearings for variable pitch propellers. 34256 A.H.Stevens Propeller blades for aircraft 34714 K.W.Willans Change-speed etc., gearing 34750 J.Yoxall Power transmission mechanism. ------------------------- 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. | ||