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).
Various rear suspension and damper arrangements, including the Hotchkiss drive.
| Identifier | ExFiles\Box 128\1\ scan0016 | |
| Date | 22th October 1926 guessed | |
| contd :- -6- * Error- apparently Beardmore pioneered the scheme. The Hotchkiss, who we believe originated the idea,* have not fitted it on their cars, but instead, fit double Hartfords with a very narrow angle between the arms as illustrated:- This device is noticeable on a large number of chassis such as the Alfa Romeo and it appears to one that though it might resist torsion, it might also, once the car has been braked violently, keep the axle with the pivots leaning forward for a brief period until road shocks allow the springs to restore them to their normal position NARROW ANGLE BETWEEN DAMPER ARMS Triangular torque arms, as on the Ford, appear to be gaining ground. On the S.A.R.A., quarter elliptic springs are fitted giving axle control and enabling a Hotchkiss drive to be used, see sketch. A number of cases of off-set rear springs were noticed arranged to give greater resistance by braking at this point. On the other hand, there are a number of cases contd :- | ||