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 design specifics for dipping head lights, including the fork tube and spring mechanism.
| Identifier | ExFiles\Box 61a\1\ scan0205 | |
| Date | 2nd February 1924 | |
| BY.{R.W. Bailey - Chief Engineer} from Hs.{Lord Ernest Hives - Chair} 44555 Hs{Lord Ernest Hives - Chair}5/LG22. 2. 24. RE. DIPPING HEAD LIGHTS. We are expecting you to supply particulars of the increased size of tube for the fork supporting the dipping head lamps. The spring mentioned by EV.{Ivan Evernden - coachwork} in DA{Bernard Day - Chassis Design}/EV{Ivan Evernden - coachwork}1/M12.2.24 was fitted to the car. The design calls for a torsional spring and the lever at the end of the wire and not on the dash as stated by EV.{Ivan Evernden - coachwork} Hs.{Lord Ernest Hives - Chair} | ||