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).
Letter from Rolls-Royce of America discussing headlamp dimmer schemes and arrangements to meet both English and American requirements.
| Identifier | ExFiles\Box 61a\1\ scan0095 | |
| Date | 3rd January 1921 | |
| Cyl - G 3121 X.4291 Jan. 3, 1921 Mr. Claude Johnson, Managing Director, Rolls-Royce Ltd., London, England. Attention: Mr. F.H. Royce. Dear Sir:- X.4291 X.3464 Re: Dimmers for Head Lamps X.1369 With reference to recent correspondence on the subject of dimmers for head lamps, I think the best scheme for both companies is that used by Mr. Hives on his experimental car 4-EX. This car has two small side lamps on the front mud guards. This arrangement takes care of the English requirements that the side lamps shall define the full width of the chassis, also the American requirements that the car when standing shall show lights at the extreme front and rear. Mr. Hives tells me that two lamps rather larger than those fitted on 4-EX are being made up by Lucas for inspection and approval at Derby. If we may have drawings of these at an early date, we can doubtless have something essentially the same manufactured in this country, thus preserving the same arrangement of lines on the English and American chassis, simplifying the wiring and the arrangement of the switch box as compared with the alternative scheme of fitting dimmers to the head lamps. MO/G CC Mr. Hives Mr. Gardner Mr. Olivier Mr. Belnap Mr. Keim Yours truly, ROLLS-ROYCE OF AMERICA, Inc. For M Olley | ||