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).
Abstract of patents relating to screw propellers and cylinder construction for internal combustion engines.
| Identifier | ExFiles\Box 147\4\ scan0032 | |
| Date | 15th August 1940 guessed | |
| No. patentee. Title. screw propellers in opposite directions simultaneously. Relates to the arrangement of planet and sun wheels for distributing the drive. 523,182 A.Houmoller. Cylinder constructions for internal combustion engines Invention is concerned with support and allowing of expansion under heat of liners made in more than one part. | ||