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 S.U. Co. Ltd. altering the specification for high-pressure diaphragms to be made of 3 layers of .030' Neoprene fabric.
| Identifier | ExFiles\Box 149\3\ scan0085 | |
| Date | 6th July 1939 | |
| 1263. EXPERIMENTAL DEPARTMENT. Rm{William Robotham - Chief Engineer}/JBD.{John B. Dixon - Fuel Systems}2/JH. 6th. July, 1939. The S.U. Co.Ltd., Bordesley Green Road, Adderley Park, BIRMINGHAM.8. For the attention of Mr. Leslie Kent. Dear Sirs, We have duly received the two high pressure diaphragms with the three layers of .030" Neoprene fabric. We have tested these and find the output satisfactory and no tendency to buzz. Will you please alter this on the specification to ensure that all future supplies of H.P. diaphragms are made of 3 layers of .030" Neoprene fabric. This applies to the existing order, and we will return the 20 we have already received. We are urgently in need of diaphragms for the H.P. pump and trust you will do your best to let me have early supplies. Yours faithfully, FOR ROLLS-ROYCE LTD. | ||