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 patents related to internal combustion engines and carburettors.
| Identifier | ExFiles\Box 147\4\ scan0145 | |
| Date | 23th November 1940 guessed | |
| No. Patentee. Title. 527,208. F.Schichau Ges. Internal combustion engines using solid pulverulent fuel. Separate groups of scraper rings are formed on the piston are to prevent sludge reaching the crank chamber and the other to prevent oil from crank case reaching the sludge collecting space. 527,330 A.Opel A.G. Carburetter for internal combustion engines. A down draught carburetter has its nozzle in a tube across the air admission passage way This is formed in a streamlined shaped member formed in one piece with the main casting and is so positioned that its greatest thickness is approximately level with the narrow throat of the venturi tube and the elongated tapered portion extends into the expanding part of the venturi -------------------------- | ||