Photocopy meter
    1.
    发明授权
    Photocopy meter 失效
    光电表

    公开(公告)号:US3627414A

    公开(公告)日:1971-12-14

    申请号:US3627414D

    申请日:1969-06-04

    申请人: STANLEY F STAPLES

    发明人: STAPLES STANLEY F

    CPC分类号: G03B1/62

    摘要: A system to meter strip advances in photocopying apparatus is described in which the strip and a metering roll travelling together precisely are stopped intermittently by cogs fixed to the roll coming to abut a stop element at intervals proportioned to predetermined advances of the strip.

    Recovery of silver from hypo
    2.
    发明授权
    Recovery of silver from hypo 失效
    从hypo回收银

    公开(公告)号:US4166781A

    公开(公告)日:1979-09-04

    申请号:US826659

    申请日:1977-08-22

    CPC分类号: C25C7/06 C25C1/20

    摘要: Means to plate silver from photographic hypo combines an electrolytic cell having a plating cathode with means to feed hypo solution to the cell at various constant volume supply rates and with means to supply electric energy to the cell comprising means to restrict and maintain the voltage and amperage thereof within maximum values to various constant rates corresponding to the respective constant hypo supply rates. In the cell hypo supply first moves slowly in heat-absorbing contact with a non-plating portion of the cathode, then into a plating zone.

    摘要翻译: 从照相底层镀银的方法将具有电镀阴极的电解槽与以各种恒定体积供给速率向电池供给低电解液的装置,并且具有向电池供电的装置,包括限制和保持电压和电流强度的装置 在最大值内的各种恒定速率对应于各个恒定的低供给速率。 在电池供电中首先缓慢地与阴极的非电镀部分进行吸热接触,然后进入电镀区。