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).
Modifications to Michelin disc wheels to make them practicable.
| Identifier | ExFiles\Box 45\1\ Scan015 | |
| Date | 8th May 1920 | |
| X 4050 To Hs.{Lord Ernest Hives - Chair} from R.{Sir Henry Royce} Copy to CJ. R2/G8.5.20. X. 3482. X. 4050. RE MICHELIN DISC WHEELS. With reference to Michelin Dsic Wheels, the question of the security bolts we ought to easily get over by drilling existing Michelin wheels. I agree to turning off the last of the ribs of the brake drum to make this practicable. As I have written to Mr. Johnson, I think we ought to persevere with the disc wheels in case the customers demand them. There ought to be no difficulty in getting rims rivetted to a disc wheel suitable for a straight-sided tyre. R.{Sir Henry Royce} | ||