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).
Trialling new ring-type rear bump buffers for the Bentley III to improve springing and reduce impact.
| Identifier | ExFiles\Box 100\1\ scan0199 | |
| Date | 18th October 1938 | |
| 446 By/Ald.{F. Allwood - Experimental Design} from Rm{William Robotham - Chief Engineer}/AFM.{Anthony F. Martindale} c. to Da.{Bernard Day - Chassis Design} Rm{William Robotham - Chief Engineer}/AFM{Anthony F. Martindale}1/R.18.10.38. BENTLEY III REAR BUMP BUFFERS. In order to obtain a slight rate variation in the springing of B.III, and also to reduce the violence of the impact with the buffers when reached, we want to try the ring type buffer advocated by Messrs. Metalastik. Will you please prepare a rough scheme showing the fixings for a 4" external dia.ring, the thickness of rubber being 1¼", to act as a bump buffer on B.III rear axle. This scheme is wanted urgently and will be sent to Messrs. Metalastik for approval of dimensions, etc. We want to reduce the bump clearance on the rear of Bentley III. At present it is 4" metal to metal, but with the present type of bump buffer, it is unlikely that we make full use of this 4". Will you please see if you can raise the existing bump buffer either ¼" or ½", without fouling the body. This is also an urgent job. There is no need to instruct any pieces to be made yet. Rm{William Robotham - Chief Engineer}/AFM.{Anthony F. Martindale} | ||