Solutions for squeaking brakes on the 40/50 HP model, and the resulting problem of 'axle jaggers'.
| Identifier | ExFiles\Box 12\5\ 05-page023 | |
| Date | 23th November 1926 | |
| To R. {Sir Henry Royce} from Hs {Lord Ernest Hives - Chair} /Rm. {William Robotham - Chief Engineer} c.c. to BJ. Wor. {Arthur Wormald - General Works Manager} c.c. to RG. {Mr Rowledge} E. {Mr Elliott - Chief Engineer} c.c. to DA. {Bernard Day - Chassis Design} BY. {R.W. Bailey - Chief Engineer} c.c. to OY. Handwritten: X7420 Hs {Lord Ernest Hives - Chair} /Rm {William Robotham - Chief Engineer} 2/LG23.11.26. 40/50 HP. - SQUEAKING BRAKES. Handwritten: X8420 Whilst we believe that satisfactory drum dampers will do a great deal to eliminate brake squeaks, experiments have shewn us that more rigid drums are a definite move in the right direction. Unfortunately rigid drums bring up axle jaggers. We also find that by employing shoes of various flexibility at the heel we can much reduce brake squeaking. These however also tend to bring up axle jaggers. We feel that if the axle could be rigidly restrained from jaggering, the brake squeaking problem would be simplified. Hs {Lord Ernest Hives - Chair} /Rm. {William Robotham - Chief Engineer} Faint watermark text: BIG 1804 MADE AT ROXLEY | ||
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).