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).
The provision of a soft, non-nitrogen hardened shaft for a Bentley Chassis for experimental purposes.
| Identifier | ExFiles\Box 82\4\ scan0284 | |
| Date | 24th April 1936 | |
| Hs.{Lord Ernest Hives - Chair} Hives { Steadman See me please { Swale Rm{William Robotham - Chief Engineer} 200 BY/EM.4/J.24.4.36. BENTLEY CHASSIS. We believe we asked you verbally some week or two ago if it were possible to arrange for a Bentley Chassis to be fitted with a soft shaft i.e. one which has not been nitrogen hardened in order to determine whether HL's bearing alloy would function equally well with a soft shaft. We now understand that you also desire to use a soft shaft for other experiments in connection with the balancing of shafts. We would point out that it is quite satisfactory to take one of our standard V.C.M. Shafts which has not been nitrogen hardened and use it for the purpose of your tests. The English Steel Corporation Limited, advise us that their V.C.M. Steel is quite equal to nickel chrome steel in the unhardened condition. Will you therefore, kindly arrange to draw a shaft from production which has not passed the nitrogen hardening stage for the purpose of your experiments. It is desirable to select a shaft which is rather on the high side of brinell hardness and we can advise you from our records of a suitable shaft from this point of view. BY/EM. EH for Bp. | ||