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 Tempered Spring Co. regarding the failure of Rm.260 springs during testing and their return for analysis.
| Identifier | ExFiles\Box 158\4\ scan0141 | |
| Date | 27th May 1937 | |
| 136 o May 27th 1937 Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell}17/AP. The Tempered Spring Co., Burton Weir Works, SHEFFIELD 4. Dear Sirs, Although we have satisfactorily carried out long periods of running on several chassis with the Rm.{William Robotham - Chief Engineer}260 springs which you supplied some time ago, we have on the other hand broken 2 similar springs after 50 hours running on the test bed. This therefore puts us in two minds regarding these springs and we wonder if by the condition of the fractures on the two failed springs you may be able to offer some explanation for the failures. We are returning these springs to you under separate cover. Yours faithfully FOR ROLLS-ROYCE LTD. | ||