27-11-1939 дата публикации
Номер: GB0000515117A
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Принадлежит:
... 515,117. Current collectors for electric vehicles. GENERAL ELECTRIC CO., Ltd., and CROFT, E. H. May 24, 1938, No. 15487. [Class 104 (lii)] In an electric vehicle provided with a pantograph collector engaging an overhead wire and adapted to be raised or lowered by a pneumatic &c. device, means are provided wherein, upon a control being effected to lower the pantograph, an electric circuit such as that of a compressor motor or a motor generator set, supplied from a trolley wire, is 'rendered inoperative. In the form shown in Figs. 1 and 2, each vehicle comprises a compressor and motor generator set, three supply wires 4, 5, 6, a common negative wire 7, a master switch 9 connecting the supply to the compressor motor through 4, a contactor coil 8, and interlock relay switch 31, 33, 34. The motor generator sets are controlled through a set contactor coil 11 and a trip contactor coil 12, and a master switch 13 which makes momentary connection between 5 or 6 and the main supply. Momentary energization ...
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