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).
Diagram of the petrol pump, water pump, and dynamo drive assembly.
| Identifier | ExFiles\Box 126\2\ scan0147 | |
| Date | 18th November 1938 guessed | |
| SS{S. Smith} 221 PETROL PUMP DRIVE DISTRIBUTOR DRIVE "AC" TYPE PETROL PUMP CAM PLUNGER GEAR ON THIS SHAFT DIAMY P 16.755 No TEETH 25 SPIRAL ANGLE 31°42' WATER PUMP DYNAMO OIL SEAL OIL SEAL RH{R. Hollingworth} THREAD RUBBER DRIVES .065 40° 1 START .165 PITCH R.H. DIA P = 16.755 NO TEETH = 11 SP.{Mr Spinney} ANGLE = 58°18' 2 3/4" DUPLEX SPROCKET DRIVEN BY TIMING CHAIN 5 7/8" 9/16" 5/8" 3/16" 3 7/8" 3/4" | ||