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).
Page describing the characteristics and applications of various leaf spring designs for vehicle suspension.
| Identifier | ExFiles\Box 178\1\ img183 | |
| Date | 28th August 1926 guessed | |
| - 11 - SAVING IN WEIGHT & ADDED SIMPLICITY. AXLE TILT PERMANENT SET EFFECT. REVERSE EFFECT WHEN BRAKING. The torque resisting capacity of a quarter elliptic spring can be increased by the substitution of a second main leaf. This was described and illustrated under "Steering". (d) Three-quarter elliptic springs. These are good for absorbing horizontal shocks. They are bad for rolling, however. As the rear of the spring moves more than the front, the centre c. for the axle attachment should be slightly off-set to prevent the angle of the spring seat continually altering i.e. l¹ l² (e) Cantilever springs. This is the type of rear springing used on R-R cars. It necessitates some sort of torque control. It is often argued that this spring minimises the unsprung weight. Though little of the spring itself is un-sprung, however, the torque member is usually of very appreciable weight which rather negatives this claim. It has a considerable faculty for absorbing horizontal contd. | ||