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 Zenith Carburettor Co. Ltd. regarding a modification to cure flat spots and popping in the exhaust.
| Identifier | ExFiles\Box 122\2\ scan0354 | |
| Date | 26th April 1938 | |
| 1033. Rm{William Robotham - Chief Engineer}/GR.{George Ratcliffe}12/JH. 26th April, 1938. The Zenith Carburettor Co.Ltd., Honeypot Lane, Stanmore, MIDDLESEX. For the attention of Mr. A.E. Palmer. 30 H.P. D.C. 42. We are recommending, as a cure for flat spots on the above carburettor our modification of the leather accelerator pump piston. Have you any objection to this being carried out at our Depots or would you prefer to make the changeover your goodselves? We also enclose a print to Rm.{William Robotham - Chief Engineer}46/. This is applicable for all carburettors that have the complaint of popping in the exhaust on over run and supercedes our last effort. You will notice that the positions of air feed has been altered in agreement with your Mr. Fisher as to it being more balanced. The writer understands that you have 3 carburettors to modify for the Derby Repair Depot to m.46/. Yoursfaithfully, FOR ROLLS-ROYCE LTD. | ||