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).
Difficulties with friction in the 20 HP steering column, suggesting a design change to the plates.
| Identifier | ExFiles\Box 106\3\ scan0174 | |
| Date | 1st August 1927 | |
| To D.A. from Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson} V5430 Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer}2/LG10. 8. 27. 20 HP. FRICTION IN THE COLUMN. X5430 The main difficulty with the present design is that it is almost impossible to fit the driving and driven plates so that they move freely under the spring pressure and yet have not slack. In consequence they are fitted up with a small amount of slack which originally is hardly appreciable but which becomes very noticeable at the steering wheel radius in a short time due to the small area of the splines. Would it be possible to decrease the number of outer serrations and increase the area of both inner and outer splines by adopting L shaped plates? We asked Hs.{Lord Ernest Hives - Chair} to draw your attention to this point six weeks ago but very probably he forgot. Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson} | ||