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).
The failure of rivets in the balancing arm of the Spectre Servo brake mechanism.
| Identifier | ExFiles\Box 95\4\ scan0109 | |
| Date | 21th January 1935 | |
| X341 To Da.{Bernard Day - Chassis Design} HB{C. E. Harcombe}/APM.19/KW. 21.1.35. SpectreCodename for Phantom III Brakes. We have had two cases of failure of rivets in the balancing arm of the SpectreCodename for Phantom III Servo mechanism. The rivets in question are the 4 No. 1/4" dia. rivets that fix the two portions of the balancing arm together to form a T. Failure was in shear. Failure occurred when the rear brakes were held off by a clamp, so that the servo did not reach its stop. We think this calls for design attention. HB{C. E. Harcombe}/A.F.Martindale. | ||