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).
Suspension components, including road springs, gaiters, and shock absorbers, to improve ride comfort.
| Identifier | ExFiles\Box 16\7\ Scan177 | |
| Date | 14th May 1929 guessed | |
| contd :- -3- invaluable adjunct for lowering the pitching speed and increasing the comfort of the passengers in the rear seatx seats. Incidentally, all our observations on riding comfort refer to the rear seats because we never have any complaints about the front seat comfort. Road springs. The next question in connection with the S.S. riding is lubricated springs. We have proved this out on the bump and they have just completed 10,000 miles running in France. Oil gets right to the tips of the leaves, and we think the resulting reduction in internal spring friction will be absolutely invaluable in dealing with complaints from old ladies who go along at low speeds. With reference to your query with regard to gaiters. We ourselves have considered doing away with these and are now thinking of grooving and drilling only the top 4 leaves and lubricating the bottom leaves by thin felt laid over the points of the leaves underneath the spring. We shall undoubtedly experiment for the elimination of gaiters in due course and personally I would rather see all the spring leaves drilled and grooved and the spring gaiters thrown away. Shock absorber loading. As you will have seen from various memos, from R.{Sir Henry Royce} we have been having a discussion about the best loads and type of shock absorber. R.{Sir Henry Royce} has been recommending that the downward load should be double the upward load and contd :- | ||