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).
Letter discussing the technical specifications for fitting suspension systems, lever arms, and brackets.
| Identifier | ExFiles\Box 25\2\ Scan062 | |
| Date | 3rd July 1924 guessed | |
| - 2 - length of arm as shown in your blue print you would, with the maxi- mum compression or maximum rebound, have contact between the ro{C. C. Rose - Export Manager}- tating impellor and the stationary re-acting member and although one may assume that these maximum points are not often reached, and it certainly probably never would be on recoil if the valves were suitably adjusted, we think that it would be preferable - should you ultimately standardise - to fit in some other manner. For the purpose of testing, of course, it is not of such importance as we assume that your tests would be merely to see for yourselves whether or not our Suspensions do actually improve the riding of your car. We note also that you show particular cranking for the lever arm and whilst we should be able to execute special orders in quantities of say not less than 100 pairs at a time for you with lever arms cranked in any manner indicated by you, we are unable to send Suspensions for you to carry out your tests with other than our standard types. We fitted as follows to the Prince of Wales's Rolls Royce also the week before last to Sir Philip Sasoon's:- Chassis type Suspensions with 225 m/m (between centres) straight lever arms. The Suspension box was bolted to the inside of the frame with one of our standard No.1 brackets between the back of the Suspension box and the frame. We then made a special bracket as per the attached sketch which you will see was bolted to the lugs on the axle casing and to which we attached the ball stud. This made an extremely neat fitting, the only possible | ||