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).
Description of the instrument board switchbox and the vehicle's electrical system.
| Identifier | ExFiles\Box 182\M14\ img011 | |
| Date | 18th September 1922 guessed | |
| (O) Instrument board continued:- The switchbox is fitted with 2 handles, one controlling the lighting, and the other controlling the ignition and dynamo. This switch box can be locked by the Yale type of key when the ignition is off, and either the lamps are off, or the side and tail lights only burning. It contains a connection socket for the inspection lamp, and also a press button for the dashboard light. It is of lasting and reliable construction, and it is very easy and convenient to operate, the cams being controlled by a single spring, and working with great sweetness. It is of RR. design and construction throughout. Inpassing, it is intended that this description should be applied to catalogue work also, in which case the description should be augmented by a halftone photographic block of the part being described. (P) ELECTRICAL SYSTEM. Except for the accumulator and a few other obvious parts the whole of the electrical equipment is manufactured by the RR Co. and has been made with the first object of reliability. Having in view simplicity and weight, great lasting quality naturally following reliability. It will be understood that the RR. Co. can afford to spend more on their equipment than is possible for constructors who depend upon trade sales to makers of lower priced chassis, and it has always been the RR. belief that engineering productions cannot be too good, the most perfect being the less costly to own. For simplicity and robustness the single wire system is adopted which permits of the more substantial single contact lamps and holders being used. For the sake of easily understanding and tracing the various circuits, the installation has been made with coloured wires of the same colours shewn on the diagram of the wiring in the instruction book. The wiring is carried out in aluminium tubes and channels so as to be well protected. In connection with the head and side lamps special provision is made to support these on the wings by the standard | ||