GB191121364A - Improvements in and relating to the Lighting of Vehicles. - Google Patents

Abstract

21,364. Compagnie Internationale d'ElectricitÚ Soc. Anon. Sept. 27, 1910, [Convention date]. Void. [Published under Section 91 of'the Act.] Lighting systems.-The dynamo of an electric lighting system is provided with a shunt fieldwinding, a series field-winding carrying the lamp current, and, in a modification, a series de-energizing field-winding adapted to be shortcircuited by a switch. A switch operated manually or electro-magnetically is arranged to change over the batteries of the system and also to place them in parallel across the load. In the arrangement shown in Fig. 1, the dynamo is provided with a shunt winding 4 and a series winding 11 carrying the lamp load. A switch 8 connects the dynamo to the load circuit, and switches 6, 7 are arranged to vary the connexions of the batteries 2, 3 and to place them in parallel across the lamp circuit. In a modification, an additional de-energizing field-winding connected across the fixed contacts of the switch 7 is provided. The switches 6, 7, 8 are shown in Figs. 3, 4, and 5. The switch 6 consists of a fixed disk 19, Figs. 3 and 4, carrying contacts e, f, and a rotatable disk 20 carrying contacts a, b, c, d. The disk 20 is operated through a pawl 22 from a handle 29 or solenoid, which simultaneously rotates a disk 21 carrying contacts g, h, l, m, adapted to be connected by fixed contacts i, k, Fig. 5.