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 requesting the supply of two small switchboards for a miniature house lighting installation.
| Identifier | ExFiles\Box 38\3\ Scan074 | |
| Date | 14th November 1918 | |
| X.3362 EFC2/AT141118 14.11.18 Messrs. C.A.Vandervell & Co., Warple Way, Acton Vale, London W. Dear Sirs, Re Miniature House Lighting Installation. Will you kindly let us know what you can do for us in the way of supplying two small switch boards for a miniature house lighting installation. The installation is to be rather on the lines of a car lighting set using a 12 volt system and consisting of a small 12 ampere dynamo with voltage controller, battery of 6 single cells of 100 ampere hour capacity and lamps with miniature holders and fittings. We have everything except suitable switch boards, and of these we require a distributing board containing 3 switches and 3 fuses (single pole) for the 3 distributing circuits. This board should be as small and neat as possible as it is to be fixed in the dwelling room of a private house. The other board is a main switch board and should contain dynamo main switch, battery main switch, double pole fuse for battery circuit, double pole fuse for main supply circuit, also a central zero battery charge and discharge ammeter reading 0 to ± 10 amperes or preferably 12 amperes, the whole board to be as neat and compact as can conveniently arranged. Switches and fuses on the smaller board should be suitable for 2 amperes. | ||