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).
Material choices and manufacturing processes for engine components like cylinder covers and connecting rods.
| Identifier | ExFiles\Box 3\3\ 03-page064 | |
| Date | 10th June 1912 guessed | |
| R.{Sir Henry Royce} Throttle Lever Bracket Spray Chamber on Carburettor. There are of course objections to the use of Aluminium on the carburettor. Cylinder Covers. In the case of the last mentioned item an objection might be made on account of the possibility of L'shage [?], but the shape of the part is such being withdrawable up & down with no cores, that sound castings could most probably be obtained. The connecting rods could be lightened by running the white metal onto the big end of the stamping itself, after it has been machined, copper plated, & tinned, thus saving the weight of the bush. This can be made a very satisfactory job. Again the body of the connecting rod could be machined and made a chrome metal steel forging, the necessary strength may be obtained with about 1/10 thickness of metal. This will of course have more important effects than the saving of weight. The connecting rod might also be made of stamped Duralumin; it would not be advisable however to adopt this metal without exceedingly lengthy | ||