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).
Cause and a potential solution for chassis 'jellying' by using a sub-frame.
| Identifier | ExFiles\Box 14\8\ Scan329 | |
| Date | 6th July 1932 | |
| x7380. RHC.{R. H. Coverley - Production Engineer} From Hs{Lord Ernest Hives - Chair}/Les.{Ivan A. Leslie} Hs{Lord Ernest Hives - Chair}/Les.6/MA.6.7.32. JELLYING P.2. x457. A bare chassis does not jelly. We think jellying is caused from the rigidity of the body. We should like a sub frame which is immensely rigid torsionally between the 4 sub-frame brackets. We suggest stiffeners in the form of a cross, the arms of which fasten to the sub-frame above the sub-frame brackets. We are hoping that such a sub-frame will cause a bare chassis to jelly. This would account for the large variation in the degree of jellying on a complete car, and would enable us to do some tests on subframe mounting in order to overcome jellying. Hs{Lord Ernest Hives - Chair}/I.A.Leslie. | ||