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).
Royalty payments for patents related to the Phantom III chassis.
| Identifier | ExFiles\Box 147\1\ scan0052 | |
| Date | 1st November 1935 | |
| X1247 To By.{R.W. Bailey - Chief Engineer} Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}17/KW.1.11.35. Phantom III Chassis Patents. Replying to BY.24/N.28.10.35, further patents on which we shall have to pay royalty are - (1) Hydraulic tappet adjustment. (2) The air intake silencer is entirely different from the one on the Bentley, but you can probably decide whether it comes in the same category. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||