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).
Increasing the strength of front and rear springs to prevent breakages.
| Identifier | ExFiles\Box 54\3\ Scan108 | |
| Date | 15th November 1923 | |
| Hs.{Lord Ernest Hives - Chair} X2628 BY2-P15.11.23. INCREASED STRENGTH OF SPRINGS. (Handwritten note: later with) I wrote to R.{Sir Henry Royce} and suggested that we should increase the springs running on the Continent 25% and for English service 15%, on the assumption, of course, that there was no extra allowance if fitted front wheel brakes. In issuing a standard-isation sheet we should point out that where we have breakages on cars of the present type without front wheel brakes we still recommend the increase of strength when replacing the broken spring of 15% for England and 25% abroad, by which arrangement we think we will eliminate fractures which occur as the result of habitual fast driving or the use of a car in a district where the roads are bad. In regard to the rear springs, we consider that these should be strengthened up as well, but not as much as 25%. I think that 15 to 20% for abroad would be ample for the rear, as we have not had complaints of thin leaf rear springs breaking under Colonial conditions - the complaints are that they bump too often on the buffers. BY.{R.W. Bailey - Chief Engineer} By | ||