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).
Modification and testing of Dural connecting rods for a crankshaft with shorter crankpins.
| Identifier | ExFiles\Box 138\1\ scan0081 | |
| Date | 4th December 1933 | |
| x634 To RHC{R. H. Coverley - Production Engineer}; from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}3/KT;4.12.33. CRANKSHAFT WITH SHORTER CRANKPINS. We think before we make a complete crankshaft with 1.0" long pins that it would be advisable to make sure that Dural connecting rods will work satisfactorily with such a small bearing area. We send you herewith drawing of your Dural rod Ex.12396. modified so as to reduce the bearing surface to .960" wide leaving flanges on the connecting rods so that they can be tried out on an existing crankshaft. Will you please make one set for test. Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls} | ||