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).
The procurement of aluminium alloy wire for experimental valve springs from High Duty Alloys Limited.
| Identifier | ExFiles\Box 88\4\ scan0186 | |
| Date | 13th November 1936 | |
| E.{Mr Elliott - Chief Engineer} Rm.{William Robotham - Chief Engineer} RMC. H.{Arthur M. Hanbury - Head Complaints} De. E/Bn.{W.O. Bentley / Mr Barrington} 254 BY/EM.14/J.13.11.36. VALVE SPRINGS IN ALUMINIUM ALLOY. With reference to your memo E/Psn2/MN.4.11.36, we have been in touch with Messrs. High Duty Alloys Limited, and they are putting in hand a small quantity of wire .192" dia. in R.R.59 Low Silicon quality for the experimental valve springs in accordance with LeC.5363. It will take some little time to obtain the material in view of the fact that wire sizes are not commonly used and the material will have to be specially made, but we will get in touch with Messrs. High Duty Alloys Limited, in order to obtain delivery as speedily as possible. The material will be supplied in the solution treated condition and will only require ageing after the coiling operation. BY/EM | ||