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).
Test report on the squeaking of thick leaf springs, concluding that forming a radius on the leaf edges is an improvement but not a permanent cure.
| Identifier | WestWitteringFiles\G\September1921\ Scan90 | |
| Date | 28th September 1921 | |
| To R.{Sir Henry Royce} from Hs.{Lord Ernest Hives - Chair} c. to CJ. c. to E.{Mr Elliott - Chief Engineer} c. to De. c. to EF. c. to EP.{G. Eric Platford - Chief Quality Engineer} c. to Wor.{Arthur Wormald - General Works Manager} c. to Br.{T. E. Bellringer - Repair Manager} ORIGINAL. Hs{Lord Ernest Hives - Chair}2/LG28.9.21. X2628 SQUEAKING OF THICK LEAF SPRINGS. We have carried out our test far enough on two cars to be able to say that forming a radius on the edges of the leaves is not a permanent cure for the squeaking. We have two samples of springs treated in this way on which we have squeaks occurring. Our impression at the moment, however, is that it makes a certain improvement. Our tests have not gone sufficiently far for us to be able to state what degree of improvement, if any. Hs.{Lord Ernest Hives - Chair} R.R. 235a (100 T) (S.H. 798 10-12-20) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 2948 | ||