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).
'S & S' shock absorber after a film demonstration and considering its potential for testing.
| Identifier | ExFiles\Box 28\1\ Scan070 | |
| Date | 24th March 1925 | |
| File. Shock Absorbers Thank you CJ from CWB. CWB6/LH{Mr Haworth}24.3.25. THE "S & S" SHOCK ABSORBER. You have already received a report regarding this fitting - PN{Mr Northey}/3/DN/23.3.25. Yesterday, I viewed a short film which has been taken of a Ford car equipped with this device running over baulks of timber. This was supposed to be a slow-motion film, but was, in fact, merely an ordinary film run through very slowly, thus producing a very jerky effect, and it was impossible to gather any more information regarding the action of this device. After the film had been shown, the people who are introducing this device into this country informed me that they had requested the parent firm which, I understand, is in Canada, to send over a set of these fittings suitable for a Rolls-Royce car, and that they then propose to place these at our disposal for testing purposes. I was absolutely non-committal in the matter - merely saying that we would look into the matter most carefully. Owing to the undoubted difference in the riding of the car in the one particular case tested with, and without, these fittings, I feel that it would have been of interest, and might give us valuable information, to thoroughly test this device out, and discover the real reason why the results are achieved. There is, owing to the fitting, a slight alteration of the bending moment along the spring, particularly towards the ends, and the fitting allows an absolutely free re-bound to the spring, either or both of which facts may or may not have anything to do with the results obtained, and the difference between this and the ordinary method of attachment of spring to car do not seem sufficiently great to give the results obtained. CWB. ---- | ||