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).
Improved heat treatment for Bentley pistons and requesting an order for new die castings.
| Identifier | ExFiles\Box 86\2\ scan0052 | |
| Date | 29th August 1933 | |
| To RHC.{R. H. Coverley - Production Engineer} from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}4/KT. 29.8.33. BENTLEY PISTONS. Hl. has an improved heat treatment for the piston alloy which we want to try to help us with our trouble on the Bentley. The heat treatment consists of taking the piston out of the die before it cools and soaking it at high temperature. Hl. now has the necessary apparatus ready. Will you please order one dozen die castings from the works specifying that they should get Hl. to superintend the casting etc. Will you please machine these castings to HS.{Lord Ernest Hives - Chair}1107. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||