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).
Experiments with chassis headlamps to achieve a sharp cut-off with dipping lamps.
| Identifier | ExFiles\Box 61a\2\ scan0359 | |
| Date | 29th September 1934 | |
| 26/16 Cx.{Major Len W. Cox - Advertising Manager} From Hs{Lord Ernest Hives - Chair}/Wst. c. to Sg.{Arthur F. Sidgreaves - MD} Hs{Lord Ernest Hives - Chair}/Wst.4/MA.29.9.34. CHASSIS HEADLAMPS. Replying to your Cx.{Major Len W. Cox - Advertising Manager}9/KW.28.9.34., it is impossible to obtain a sharp cur-off with dipping lamps unles some alteration is made to the focal point of the bulb. Hence we are experimenting on the lines suggested to you which if successful, with the new lamp bulbs we are trying to get made specially for our test, should give universal satisfaction at home and abroad without interfering with the lamps. With regard to lamps dipping left and right we will arrange for GWH.{George W. Hancock - Head Chateauroux} to test this out on the next car we send out. Hs{Lord Ernest Hives - Chair}/Wst. | ||