Device for stopping a turntable at selected positions
    1.
    发明授权
    Device for stopping a turntable at selected positions 失效
    用于在选择的位置停止可变的装置

    公开(公告)号:US3739189A

    公开(公告)日:1973-06-12

    申请号:US3739189D

    申请日:1972-05-26

    发明人: IGARASHI S OKANO T

    IPC分类号: G03B23/06 G06K17/00 H01H47/24

    摘要: A turntable having a plurality of sections containing information cards is provided with control means for accurately stopping the turntable at selected positions to permit retrieval of a desired card. The control means comprises an arrangement of cams, cam-operated switches, and a photoelectric circuit including a light-interrupting disc continuously driven in synchronism with the rotation of the turntable.

    Card retrieval device
    2.
    发明授权
    Card retrieval device 失效
    卡检索设备

    公开(公告)号:US3738486A

    公开(公告)日:1973-06-12

    申请号:US3738486D

    申请日:1971-05-04

    IPC分类号: G06K21/00 G06K21/04 B07C3/16

    CPC分类号: G06K21/04

    摘要: A device for selectively drawing one of a large number of cards by means of an electromagnet in which the cards are each provided with an iron piece of a predetermined height at the leading edges of the cards and at different positions from each other. In order to provide selective drawal of the cards, a pressing means is provided for holding those cards, pressing means is provided for holding those cards which are not to be drawn. The operation of the pressing means and the electromagnet is controlled by the use of a microswitch.

    摘要翻译: 一种用于通过电磁体选择性地绘制大量卡片中的一个的装置,其中卡片在卡片的前边缘处和彼此不同的位置处设置有预定高度的铁片。 为了提供卡的选择性抽取,提供了用于保持这些卡的按压装置,用于保持那些不被拉伸的卡的按压装置。 按压装置和电磁铁的操作通过使用微动开关来控制。