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).
The suspension systems of the Cottin-Desgouttes and Sizaire cars observed at the Paris Salon.
| Identifier | ExFiles\Box 128\1\ scan0011 | |
| Date | 22th October 1926 | |
| To R.{Sir Henry Royce} from Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson} c. to BJ. Wor.{Arthur Wormald - General Works Manager} c. to RG.{Mr Rowledge} E.{Mr Elliott - Chief Engineer} c. to DA.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} Y3531 X4040 Hs{Lord Ernest Hives - Chair}/RmL/LG22.10.26. PARIS SALON. Y3609 SUSPENSION. The two radical departures from the standard pract- ice at the Paris Show were the Cottin-Desgouttes and the Sizaire. Cottin-Desgouttes. This made its first appearance at the Paris Show. Four transverse springs provide the rear wheel control and a single transverse spring of considerable width, the front wheel control. No shock absorbers are fitted fore and aft, nor any device for assisting the rear springs to take the braking or driving torque. The crown wheel housing is bolted rigidly to the rear of the frame and carries two brake drums as illustrated. One would anticipate that these would get very hot as they are completely shrouded by the frame from air currents. It is obvious from looking at the car that there is very little to counteract rolling. As a result of the brakes being fitted upon the crown wheel housing, the universal jointed shafts have to carry both the braking and the driving torque. In spite of the most severe conditions under which these joints would have to work, there does not appear to be any means of automatically lubricating them: grease gun nipples being relied on. contd :- | ||