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).
Summary of four patent specifications relating to transmission joints, engines, compressors, and testing apparatus.
| Identifier | ExFiles\Box 147\4\ scan0083 | |
| Date | 12th September 1940 guessed | |
| No. | Patentee | Title 524,954 | M.F.A.Julien | Resilient transmission joints. Transmission joint in a cardan shaft of an automobile. The two shafts carry hemi-spherical shaped members at their ends one inside the other with rubber sandwiched between them and adhesively fixed to the inner surface of the outer cup and the outer surface of the inner, the rubber extending beyond the end of the outer member, the thickness of the rubber being diminished towards axes of the shaft and the surface of rubber adhering to the inner member being equal or greater than the surface adhering to the outer. 524,955 | Aktiebolaget Svenska Kullagerfabriken. | Scavenging of engine cylinders in two stroke internal combustion engines. Invention applies to two stroke engines aspirated by automatically working over-head poppet valves, a combustion chamber is provided of slightly greater diameter than that of the cylinder bore and parts of the valves extend to a distance measured radially from the axis of the cylinder greater than the radius of the said cylinder. 524,960 | Aero Engines Ltd and G.F.Halliday. | Compressors. Compressors of the backed radial fan type primarily for air pressure cabins of aircraft. To prevent lubricating oil being delivered with the air spaces are provided between the bearings and the blades of the fan into which some of the compressed air is introduced so as to prevent the oil leaking through this space. 524,971 | Heenan & Froude Ltd., and G.H.Walker. | Apparatus for testing air-cooled engines dynamometrically. The invention concerns the extractor duct which leads in cooling air and leads out the air and exhaust gases. This is formed with a restricted cross sectional area near the engine from which point it expands gradually. The kinetic energy of the stream is converted to pressure energy and recirculation of air containing exhaust gases in the test chamber is prevented. | ||