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).
Technical memorandum detailing considerations for engine silence, pistons, and supercharging.
| Identifier | ExFiles\Box 3\6\ 06-page245 | |
| Date | 2nd October 1934 guessed | |
| -4- (12) Engine Silence. (a) Silent tappets - Cadillac and Halford. (b) Elimination of valve spring surge. (c) Textolite gears. (d) Boom periods. Light clutch, N.Sch.4190. 4-Bearing crankshaft. Lightened reciprocating parts. Harrow pin rods. RR.53 Aerolites. (e) Stiffen up flywheel crankcase web and flywheel bearing dia. on 7 bearing as on 4 bearing shaft. (f) Endurance tests on chain drive for front end. Swindall, Steadman, Hardy. (g) Silent fans. (13) Pistons. (a) Aluminite. (b) Lubrication from con. rod. (c) Rings with increased radial pressure. (d) Aluminites for SpectreCodename for Phantom III. (e) New grinding for semi-split SpectreCodename for Phantom III pistons. (f) Trials cars with Aerolites. (g) Order RR.53 Aerolites for test. Matthews. (14) Supercharging. (a) 4-Bearing crank unit. Graham supercharger. (b) Boost control unit. Ll.Smith. (c) Suction ignition control. Ellor. (d) Blower improvements to improve characteristics. Matthews. | ||