Spring replacement for the 25 HP starter motor to increase load before slipping.
| Identifier | ExFiles\Box 40\5\ Scan204 | |
| Date | 4th December 1930 | |
| X 3587 To BY. {R.W. Bailey - Chief Engineer} From Hs {Lord Ernest Hives - Chair} /GWH. {George W. Hancock - Head Chateauroux} Hs {Lord Ernest Hives - Chair} /GWH. {George W. Hancock - Head Chateauroux} 2/MJ.4.12.30. RE. 25 HP. STARTER MOTOR. We have found a suitable spring which is used on the old type starter motor which gives us a 25% increase load before slipping. The Repair Dept. have some of these springs in stock, we could therefore fit these springs right away. I have taken this matter up with Mr. Davis who understands the position. The present spring used is D.51376 compressed to .650 = 142 lbs. The proposed spring is D.51544 compressed to .650 = 157 lbs. Hs {Lord Ernest Hives - Chair} /GWH. {George W. Hancock - Head Chateauroux} | ||
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).