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).
Decision to provide two-wire instead of three-wire concealed wiring for the lamps on the 20/25 HP chassis.
| Identifier | ExFiles\Box 107\4\ scan0187 | |
| Date | 3rd May 1930 | |
| DA{Bernard Day - Chassis Design}/EV.{Ivan Evernden - coachwork} c - Sg.{Arthur F. Sidgreaves - MD} c - Hs.{Lord Ernest Hives - Chair} c - Whr.{Mr Wheeler} X5390 BY1/W.3-5-30. x5390 x5380 s800 SECRET. REVISED WING STAYS, CROSS MEMBER AND LAMP BRACKETS. - 20/25 H.P. CHASSIS - With reference to 'N' Scheme 3089, showing the above; we observe that you are asking us to provide a Junction Box at the front end of the Frame, which would receive three wires to enable the car when it reaches the Coachbuilders to be fitted with Double Filament Bulbs in the Head Lamps, or single Filament Bulbs and Centre Lamp, as required, in a similar manner to the "P.II" chassis. We would, however, point out that in November last we prepared a scheme on these lines and in March this year we received definite instructions from Sales informing us that Sg.{Arthur F. Sidgreaves - MD} thought it better not to standardise this system of lighting as it was found that many customers are not wholly in favour of it, and that the electrically operating Dipping Reflectors appealed to many; Therefore, we are scheming at the front end of the Frame to provide concealed wiring for two wires only, i.e. Side Lamps and Head Lamps on similar lines to which we are endeavouring to provide concealed wiring on the "P.II". BY.{R.W. Bailey - Chief Engineer} | ||