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).
Bentley steering oil viscosity for different weather conditions and proposing grooves as a solution.
| Identifier | ExFiles\Box 87\5\ scan0179 | |
| Date | 5th September 1935 | |
| EP.{G. Eric Platford - Chief Quality Engineer} c. Sft.{Mr Swift} c. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} c. Hd.{Mr Hayward/Mr Huddy} X250 BY.3/G.5.9.35. Rm{William Robotham - Chief Engineer} RE: BENTLEY STEERING. EP.{G. Eric Platford - Chief Quality Engineer}16/MH.{M. Huckerby} 3.9.35. I think that the trouble is not to be avoided by any one oil, it can be met by changing from a thin to a thick oil to meet hot weather conditions and vice versa for cold conditions. Grooves judicially arranged will make either oil satisfactory under any conditions by adequately maintaining an oil wetted area of sufficient dimensions to carry the load. BY BY.{R.W. Bailey - Chief Engineer} | ||