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).
Manufacturing process and design of road springs.
| Identifier | ExFiles\Box 16\7\ Scan115 | |
| Date | 20th October 1928 | |
| BY.{R.W. Bailey - Chief Engineer} from R.{Sir Henry Royce} DA.{Bernard Day - Chassis Design} HS.{Lord Ernest Hives - Chair} c. to BJ. Wor.{Arthur Wormald - General Works Manager} PN.{Mr Northey} CWB. 47410 R1/M20.10.28. ROAD SPRINGS. X.7410 X.8410 I quite agree that we must stop hollow rolling of spring plates. This is not our work, but is done to make it easy to give a good looking spring, though it is a fake, and also the springs should always be in gaiters. I quite agree that the surface should not be made defective by stamping on names and numbers unless a place and method can be found that is harmless. One thinks it possible to get a much truer surface if we hardened between blocks like a circular saw (RR. idea) All the plates of one thickness should have one curve if the curve were true. I am sure it would be wrong to cut the [sketch of a pointed end] ends - they should be [sketch of a square end with rounded corners] i.e. square, with rounded corners, and properly tampered [sketch of a tapered thickness end] in thickness. This gives the largest surface for the load at the ends of the plates. The plates could easily be held on a magnetic chuck and truly ground and polished. It would need some special plant, but the process could be made inexpensive, and the surface nearly perfect - (RR. idea.) R.{Sir Henry Royce} | ||