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 various patents related to automotive and engineering components.
| Identifier | ExFiles\Box 147\4\ scan0065 | |
| Date | 29th August 1940 guessed | |
| No. Patentee. Title. 524,128 E.Bugatti Bearings. Bearing surface particularly for crank shafts of high duty internal combustion engines is formed of an anti friction layer divided into a plurality of separate sections by thin ribs of metal which is harder than the anti- friction metal the ribs being closely and regularly disposed throughout the bearing surface with their exposed surfaces lying flush with the surface of the anti friction metal. 524,130 Naamlooze Vennootschap Electrical de Bataafsche Petroleum detonation indica- Maatschappij. tor for internal combustion engines To avoid recording vibrations caused by opening and closing of the poppet valves, on the detonation indicator the electrical pick up is connected only during the com- bustion period and cut out as valves are opening and closing. 524,146 High Duty Alloys Ltd Manufacture of and J.A.Heron. hollow articles by extrusion. Solid billet is extruded over a mandrel through an orifice between mandrel and wall of container to form a closed solid and seamless end, while the article is being extruded, making a thickened wall at the other end and closing it to reduce the neck opening. 524,152 High Duty Alloys Ltd., Manufacture of and J.A.Heron. airscrew or propeller blade The die is altered while the blade is extruded so as to alter the blade section. 524,180 J.H.Pratt.C.E.Manley Internally and A.H.C.Girling. expanding brakes. Frictional means are provided which tend to restrict the return movement of the brake shoes to a pre- determined small amount so that the shoes in the off position always be in close proximity to the drum irrespective of wear. | ||