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).
Alternative scheme for a servo-assisted braking system.
| Identifier | ExFiles\Box 73\2\ scan0174 | |
| Date | 12th July 1923 | |
| R.E. 493A (40 H) (SL 42 12-7-23). J.H. D.{John DeLooze - Company Secretary} -2- Expl. No. 9940 REF: Hs{Lord Ernest Hives - Chair}/ACL1/LG3.1.24. EXPERIMENTAL REPORT. necessary to use higher pedal pressures to obtain same braking effort. (2) The angularity of the pull rod operating the servo would have to be increased which would result in increased pedal movement to operate servo as it rotated. ALTERNATIVE SCHEME :- We are at present trying the following scheme :- [Watermark: DICKINSON BOND 1804] The pedal lever on the differential distributing shaft is connected with a lever on the servo intermediate shaft through a set up spring of stiffness just sufficient to take up rear brake clearance against tension of brake springs. [In this case the spring should start to deflect with a pull of 30 lbs. using 3.25" levers] Hs{Lord Ernest Hives - Chair}/ACL. | ||