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).
Side movement and twisting of rear springs on a test chassis.
| Identifier | ExFiles\Box 80\2\ scan0344 | |
| Date | 16th March 1921 | |
| by.{R.W. Bailey - Chief Engineer} from Mr. c. to Da.{Bernard Day - Chassis Design} c. to Hs.{Lord Ernest Hives - Chair} c. to Fy. X.4056 AT & EP{G. Eric Platford - Chief Quality Engineer}7/F16.3.21. X.4056 CHASSIS - REAR SPRINGS - NO NIBS OR SLOTS. Y 2628 l. As pointed out to you this morning, we find that after running the cars, especially if under severe conditions, the leaves of the above springs on chassis on test show distinct signs of side movement. The leaves appear to twist about the centre of the spring, and in the case on test which I am anxious to bring to your attention, the end of the leaf is out of the plane of the spring by as much as 3/16" to 1/4". X.1353 There is a clip at each end of the spring only, and the side movement commences at the leaf which is not clipped. Hs{Lord Ernest Hives - Chair} MAR 16 1921 RECEIVED EP.{G. Eric Platford - Chief Quality Engineer} | ||