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 abstracts concerning engine cooling, metal extrusion, and vehicle suspension.
| Identifier | ExFiles\Box 147\4\ scan0066 | |
| Date | 11th September 1940 guessed | |
| No. Patentee. Title. 524,182 Pobjoy Airmotors & Cooling of aircraft Ltd and C.O. Internal Combus- Towler. tion engines. A non-conducting material such as asbestos is placed on inside of exhaust ports to insulate surrounding portions of the head from the heat of the exhaust gases. 524,189 High Duty Alloys Ltd Extrusion of and J.A.Heron. metal articles. Profile of die is varied during extrusion by rotating or oscillating segments of the die. 524,287 Soc.Italiana Pirelli Resilient suspensions for vehicles more particularly road vehicles. Wheels are suspended on a combination of pneumatic and rubber springs the latter only coming into play when the load on the system begins to exceed that derived from the unloaded weight of the vehicle. ------------------------------------- | ||