Incandescent lamp and mounting therefor
    1.
    发明授权
    Incandescent lamp and mounting therefor 失效
    白炽灯及其安装

    公开(公告)号:US1788231A

    公开(公告)日:1931-01-06

    申请号:US24310727

    申请日:1927-12-28

    Applicant: GEN ELECTRIC

    CPC classification number: H01R33/46 C07F7/006 H01K1/46 H01K9/00

    Abstract: 303,114. British Thomson-Houston Co., Ltd., (Assignees of Ceader, J. D., and Severin, C.). Dec. 28, 1927, [Convention date]. Multiple-filament lamps ; caps; holders.-To ensure that a multiple-filament bulb for vehicle headlights &c. shall be mounted in only one position with respect to the reflector, the bayonet pins 23, 24 of the bulb cap are located at different distances from the end of the cap and the bayonet slots 26, 27 of the holder are of different lengths to receive the pins. The lamps described comprise two main filaments 13, 14 and a lowpower filament 15 to give a parking light. In the form shown in Fig. 1, the filament 14 is placed on the axis of the bulb and the filament 15 is at right-angles to the main filaments, and in the form shown in Fig. 3, the main filaments are placed on opposite sides of the axis and the filament 15 is inclined to them.

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