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).
Page describing the operation of a dynamo and the function of a junction box.
| Identifier | ExFiles\Box 26\2\ Scan118 | |
| Date | 27th February 1920 guessed | |
| Contd. -4- to be made. Subsequently, as the speed increases, the effect of the main current is added. When the dynamo slows down and its E.M.F. falls below that of the battery, the current reverses through the series coil and the effect of the shunt winding is neutralised, which allows the contacts to fall apart. JUNCTION BOX. This is fitted on the front off-side of the dash and is shown withthe cover removed in fig. 58). The positive and negative bars are shown at P & N. E is the earthing connection already referred to. Each bar is connected to the battery through a 25 ampere fuse as shown, spare wires for which are provided in a small container C. Connections from this box are taken to starter push button, main switch, and actuator, also for Klaxon and battery ignition. The remaining terminals are avilable as spares. Contd. | ||