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).
The performance and issues with a 1/2 inch Whittle belt for a dynamo drive after 10,000 miles of testing.
| Identifier | ExFiles\Box 55\2\ Scan008 | |
| Date | 19th October 1912 | |
| x493 3100. EP {G. Eric Platford - Chief Quality Engineer} 39/T191012 October 19th 1912. Mr Barrington for Mr Hadin and Mr Bailey. RE 1/2" WHITTLE BELT FOR DYNAMO DRIVE. This has been running on 1718 car for over 10,000 miles and was very satisfactory, it gave considerably less trouble both as regards stretching and slipping when slack as compared with the present 1/2" belt. The only trouble was a knocking due to dynamo pulley which I understand was anticipated by Mr Bailey, it being considerably heavier allowing the free wheel to give and take causing the knock. The lighter one has now been fixed which has so far been quite satisfactory. W.P. RR | ||