Blueprint illustrating the relative positions of the rear spring, safety bolt, and roller on a 40/50 HP chassis under various load conditions.
| Identifier | ExFiles\Box 52\2\ Scan136 | |
| Date | 21th September 1922 | |
| A SPRING UNDER NORMAL LOAD 7.700 (TO BUFFER UNCOMPRESSED) B -BOLT JUST TOUCHING THE ROLLER.- 13.500 (TO BUFFER UNCOMPRESSED) C -HYDRAULIC SHOCK ABSORBER-(PISTON JUST TOUCHING END OF CYLINDER)- (13" LEVER). 15.650 (TO BUFFER UNCOMPRESSED) D -HARTFORD SHOCK ABSORBER-(ARMS TOGGLED). 17.725 (TO BUFFER UNCOMPRESSED) -RELATIVE POSITIONS OF REAR SPRING, SAFETY BOLT & ROLLER- 40/50 HP CHASSIS A.W.H. (SCALE 1/2) | ||
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).