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).
Composition, design, and performance of road springs.
| Identifier | ExFiles\Box 54\3\ Scan061 | |
| Date | 30th December 1921 | |
| To Hs. {Lord Ernest Hives - Chair} from R. {Sir Henry Royce} c. to CJ. c. to Hl. c. to Ba. c. to BY. {R.W. Bailey - Chief Engineer} c. to Wor. {Arthur Wormald - General Works Manager} c. to E. {Mr Elliott - Chief Engineer} X2628 R3/M30.12.21. RE. ROAD SPRINGS. X. 2628 I am trusting to Mr. Hall to watch carefully the composition and physical condition of the steel in these as we have found so much difference in life can be obtained by careful in this direction. Suppose the thickness, grading, curvature, and length of the leaves is carefully watched, it still seems that a spring which with all the above is correct, might last longer if all the plates were graded down in thickness including the top plate. Such a spring would be slightly more expensive but might be advisable for front springs which for other reasons are generally on the short side. I also suggest that we might like rather deeper rubber buffers, so as to prevent the stresses getting so high on bump, the rubber being more flexible would prevent the more frequent shocks being objectionable. It will be appreciated that all the steel in the chassis should be as near as is practical in the same condition as that in an excellent spring. I know this is impossible but except for case-hardened rubbering surfaces, such a condition, of axle frame and everything, would be ideal. R. {Sir Henry Royce} | ||