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 from Cam Gears Ltd. explaining the testing methodology for their steering gear.
| Identifier | ExFiles\Box 28\2\ Scan110 | |
| Date | 20th December 1932 | |
| 84094. MANUFACTURERS OF THE BISHOP PATENT STEERING GEAR IN ASSOCIATION WITH GEORGE KENT LTD REG. OFFICE, 199, HIGH HOLBORN, W.C.1. CAM GEARS LTD. DIRECTORS: COMMR P.W.KENT, R.N. RETD H.LEESE. R.PENTONY, M.I.A.E. BISCOT ROAD WORKS, LUTON, BEDS. TELEPHONE: LUTON 790. TELEGRAMS: KAMGEARS, LUTON. YOUR REF. Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls}1/Mu. OUR REF. RP/CGS. 20th December, 1932. Messrs. Rolls-Royce Limited, DERBY. For the attention of Mr. Grylls. Dear Sirs, We are very much obliged for your letter of the 16th inst., and have pleasure in enclosing a sketch showing the way in which the gear was mounted to obtain the figures shown on the curve which we sent you with our last letter. The pull on the steering wheel was registered by a spring balance, and weights were added to a lever representing the drop arm which was mounted in a horizontal position and was free to oscillate, being restrained only by the spring balance attached to the steering wheel. The application of a load permitted it to oscillate slightly but it would come to rest, giving a reading on the spring balance. The loads were therefore not in this sense shock loads. Our experience with shock loads being that they are absorbed in the gear to a very great extent, and are not transmitted to the steering wheel. We are pleased to hear that you have had very good results from the Weller gear, as that is a type that was developed from our own. | ||