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).
Complaint about cars bumping on rubber buffers and the design considerations for front spring clearance.
| Identifier | ExFiles\Box 54\3\ Scan166 | |
| Date | 20th November 1924 | |
| X2628 To CJ. from Hs.{Lord Ernest Hives - Chair} Hsl/LG20.11.24. X9410 With reference to PN{Mr Northey}'s complaint of recent cars bumping on the rubber buffers. The relative clearance between the front spring and the rubber buffer is reduced by approx. 15% on the 40/50 HP. cars fitted with 4-wheel brakes. Originally, WW. design gave considerably less clearance than this. We complained of the springs bumping and the design was altered to the above proportions. The drivers in France have pointed out that the springs strike the buffers more frequently than on the standard car but it has not been put forward as a serious complaint. The reason for giving less clearance between the springs and the buffer was to reduce the stress in the road springs. We do not consider that the bumping on the buffers on the latest 40/50 HP. should give cause for complaint. Sales have run 48-PK car (EAC.111.) 5,000 miles. We have not heard of any complaint in connection with the springs strikeing the buffers on that car. Hs.{Lord Ernest Hives - Chair} | ||