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).
Outlining two arrangements for testing on a brake judder rig to increase the torsional stiffness of a Bentley axle.
| Identifier | ExFiles\Box 84\2\ scan0274 | |
| Date | 23th January 1935 | |
| To RHC.{R. H. Coverley - Production Engineer} x20b Hs{Lord Ernest Hives - Chair}/FJH.{Fred J. Hardy - Chief Dev. Engineer}4/KW. 23.1.35. Wet Brake Judders - Bentley. On the brake judder rig in the Bump House we wish to try two arrangements for increasing the torsional stiffness of the axle. The first method consists of anchoring the carrier plate of the brake drum to the frame of the rig as shown in the first sketch attached. This method should give a very high degree of rigidity. The second method consists of fitting the outboard shock absorber anchorage that has just been removed from chassis 3-B-IV, and the equivalent of a radius rod as shown in the second sketch. The top of the axle control triangle is anchored to the frame as shown, and the axle is similarly anchored at the point of attachment of the axle control triangle. These conditions reproduce the new scheme for axle control and radius rod moved out that is now being prepared for the Bentley, and should give a degree of rigidity intermediate between that provided by the first scheme and the standard axle. Will you please construct the necessary parts and fit to the test axle. It is necessary only to apply them to one brake drum (the near side). Will you please also make one set of near side front axle control parts to Ex.16892 for use on 3-B-IV to replace the ones borrowed for the above job. Hs{Lord Ernest Hives - Chair}/F.J.Hardy. | ||