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).
Stating a lack of interest in testing a vacuum-operated servo for motor car brakes.
| Identifier | ExFiles\Box 120\3\ scan0002 | |
| Date | 4th December 1926 | |
| W/S. CWB. from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} X383 Hs{Lord Ernest Hives - Chair}/Rml/T4.12.26. VACUUM OPERATED SERVO FOR MOTOR CAR BRAKES. With reference to your CWB8/GM/3.12.26. we are not at the moment interested in vacuum brakes and do not think, therefore, it would be worth while testing the device which you mention. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||