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 The Light Production Co. Ltd. requesting a further 14 modified experimental pistons with a raised crown.
| Identifier | ExFiles\Box 148\3\ scan0366 | |
| Date | 3rd August 1938 | |
| 12 50 EXPERIMENTAL DEPARTMENT. Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell}7/JH. 3rd. August, 1938. The Light Production Co.Ltd., 60/66 Rochester Row, Westminster, LONDON.S.W.1. For the attention of Mr.C.H. Brooks. Dear Sirs, Some time ago you made for us 14 pistons with a raised crown in accordance with our print Rm.{William Robotham - Chief Engineer}522 for experimental purposes. We now require a further 14 pistons but with the crown raised .300 as against .170 on the previous raised crown pistons. We have pencilled this measurement on the enclosed Rm.{William Robotham - Chief Engineer}522 print and as before the section of the head of the raised crown to be maintained standard thickness. Other than the raised crown the pistons to be as present production EB.3151 and tin plated. Further to our previous correspondence regarding visiting us to discuss pistons seizures, we should be pleased to know what date will be convenient to you. Yours faithfully, FOR ROLLS-ROYCE LTD | ||