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).
List of development points and responsible personnel for clutches, supercharging, and brakes.
| Identifier | ExFiles\Box 3\6\ 06-page237 | |
| Date | 2nd October 1934 guessed | |
| -3- (11) Clutches. (a) Repeat B.10 clutch which is O.K. (b) Perfect oil seal on rear main bearing housing. (c) New lightened clutch for Bentley B-23-AK centre, N.Sch.4190. Grylls. (12) Supercharging. (a) 4-Bearing crank unit. Graham supercharger. (b) Boost control unit. (c) Suction ignition control. (d) Blower improvements to improve characteristics. Ll.Smith, Ellor, Matthews. (13) Brakes General. (a) Elimination of jagger when wet and wet inefficiency. Water exclusion scheme. Axle control, improvement of stiffer type axle. Effect of Hartfords. Are jaggers affected by non-servoing front. (b) Vacuum servos. Test for reliability. Can they be fitted with reservoir to operate when engine dead. Small vacuum servo as supplement to RR. servo. (c) Servo tests. Improvement in existing servo. Eliminate fading, value of ball bearing bridge. Frictional value of pin drive. Reduction in tendency to squeak. (d) Direct to 4 wheels. Reduced pull off springs. Steel shoes. Will servo stand speeding up to reduce lag. (Test on Porlock). Reduction in sponge. Grylls, Hardy. | ||