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).
Reduction of spring load on a clutch's inner pressure plate.
| Identifier | ExFiles\Box 103\1\ scan0087 | |
| Date | 20th April 1934 | |
| X5300 To RHC.{R. H. Coverley - Production Engineer} Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls}5/KW. 20.4.34. CLUTCH - 21-G-IV. We wish to reduce still further the spring load on the inner pressure plate of this clutch. At present there are 6 springs of 25 lbs. each. We should like to reduce this load to 15 lbs. This can be done by grinding the ends of the set of 20 lb. load springs that were made. At the same time we should like to increase the spring movement from .012 to .015. Will you please give us your opinion whether the inner plate can bind and tilt instead of moving square with its axis. Hs{Lord Ernest Hives - Chair}/H.{Arthur M. Hanbury - Head Complaints} Grylls. | ||