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).
Increasing clutch spring pressure to prevent slippage and requesting views on the resulting pressure on the disc material.
| Identifier | ExFiles\Box 74\2\ scan0327 | |
| Date | 23th August 1921 | |
| R.R. 225B (100 T.) S.H. 89. 22-7-20) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 2769 BY3-P23.8.21. contd. - 2 - d/- We have actually increased the spring pressure to a total of 960 lbs, without absolutely stopping the clutch from slipping. We now propose to increase the spring pressure to 1120 lbs, which we believe will make the clutch act correctly, but, of course, it will increase the pressure on the disc considerably, and we would like to have Mr Frood's views in regard to the pressure per square inch which this will impose upon the material of the disc. e/- The HP, to be transmitted is 22 BHP, at 100 r.p.m. BY.{R.W. Bailey - Chief Engineer} | ||