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).
Lightening the design of 25 HP torque reaction dampers and their potential application to the Bentley.
| Identifier | ExFiles\Box 86\5\ scan0133 | |
| Date | 6th March 1935 | |
| To Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} Hs{Lord Ernest Hives - Chair}/GWH.{George W. Hancock - Head Chateauroux}17/KW.6.3.35. 25 HP. Torque Reaction Dampers. We have tackled the lightening of the torque reaction dampers as the design received was not light enough. We have by doing away with the heavy centre bolt, side plates and spring, reduced the centre plate thickness by half, and got the weight down by 38%. We are using star side spring plates to give us the necessary damping load. When the production of spring plates are known for spring rating, a distance piece can be fitted so that a constant load would be obtained without fear of overloading the spring plates. The dampers are to be fitted to 21-G-IV, but there is no reason, if they are satisfactory, why they should not be applied also to the Bentley. Hs{Lord Ernest Hives - Chair}/G.W.H. GWH{George W. Hancock - Head Chateauroux} EX 17830 Arry. 31 Anchor Brkd. 32 Spring. 33 dist. piece 34 dist. piece | ||