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    • 3. 发明专利
    • Improvements relating to electric lighting and battery charging systems
    • GB393736A
    • 1933-06-15
    • GB1193932
    • 1932-04-26
    • HARRY TAYLORWILFRED HELLEWELLTORSTEN LUDWIG BERG
    • H02J7/14
    • 393,736. Variable-speed generator systems. TAYLOR, H., 62, Cambridge Road, Birstall, HELLEWELL, W., 60, Laurel Crescent, Ovenden, BERG, B. M., 5, Ferguson Street, and BERG, T. L., 16, St. Mary's Street, both in Halifax, all in Yorkshire. April 26, 1932, No. 11939. [Class 38 (iv).] An electric lighting system comprising a variable-speed generator and a battery has electromagnetic means operating to connect the lighting circuit across a portion of the battery when the battery is charging, the electromagnetic means comprising a winding connected between the battery and the generator and a second winding connected across the generator. As shown in Fig. 1, the first-mentioned winding on a magnet E is effective to close contacts 6 until the dynamo voltage is sufficient fully to excite a magnet D, whereupon, the cut-out C having closed, the contacts b are closed to connect the lamps F to a portion of the battery. As shown in Fig. 2, the first-mentioned coil g is connected in series with the contacts of the cut-out C, and a spring h closes contacts b when the dynamo coil g , which is on the same core as the grid g, is not fully energized. When the contacts b2 have been closed, the coil g assists the coil g until the current in it reverses.