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).
Letter to Wellworthy Piston Rings Ltd. regarding the effect of 'rolling' before heat treatment on engines.
| Identifier | ExFiles\Box 115\4\ scan0029 | |
| Date | 28th September 1939 | |
| 8 Rm{William Robotham - Chief Engineer}/CTS.{C. Trot Salt - Carburation}2/JH. 28th. September, 1939. Wellworthy Piston Rings Ltd., Lymington, Hants. For the attention of Mr. Blackith. Dear Sirs, Please excuse the delay in replying to your letter dated 12th. Sept. Answering your query, we have had no experience on our engines of the effect of "rolling" before heat treatment, and at the present time we cannot therefore enlarge on your present information on the subject. Yours faithfully, FOR ROLLS-ROYCE LTD. | ||