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).
Alternative design suggestions for a spring-controlled rear shackle for front springs.
| Identifier | ExFiles\Box 4\6\ 06-page61 | |
| Date | 15th April 1932 | |
| E.{Mr Elliott - Chief Engineer} BY.{R.W. Bailey - Chief Engineer} } FROM DA.{Bernard Day - Chassis Design} DA{Bernard Day - Chassis Design}2/115.4.32. X.433 X.5410 C. to SG.{Arthur F. Sidgreaves - MD} HS.{Lord Ernest Hives - Chair} J.{Mr Johnson W.M.} 3. - SPRING CONTROLLED REAR SHACKLE FOR FRONT SPRINGS. Herewith are N.schemes 3453/54, alternative suggestions for the flexible shackle on the above car. Because of the short distance between the frame and the spring eye, and arrangement exactly like N.scheme 3452 (for P. 2.) does not seem possible. N. sch.3453 is very much like it, but the pads supporting the springs are not exactly normal to the movement, so that there is a little lateral bending of the springs, which is negligible on the P. 2. scheme. N.sch.3454 is an alternative with this feature reduced. The spring stress in both cases is maximum. We think we prefer N.sch.3453 as being more compact and conventional. The drawing is for the L.H. car but is of course easily adaptable to R.H. The 25HP is still shorter. The spring negative camber may have to be increased. DA.{Bernard Day - Chassis Design} | ||