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    Cell door locking and driving system
    2.
    发明授权
    Cell door locking and driving system 失效
    电池门锁和驱动系统

    公开(公告)号：US3571974A

    公开(公告)日：1971-03-23

    申请号：US3571974D

    申请日：1969-08-29

    Applicant: SOUTHERN STEEL CO

    Inventor： BROWNING JAMES E ,  YOUNGBLOOD DAVID HULL

    IPC: E05F17/00 ,  E05B53/00

    CPC classification number: E05F17/001

    Abstract: A housing enclosed cell door supporting carriage driven by an electric motor driven drive pinion engaging a rack on a reciprocable slide bar on the carriage with camming means on each end of the slide bar. The slide bar being movable through an overtravel increment at each end of travel of the carriage to bias a pivotable cell door lock bar operator carried by the carriage in a direction to move the lock bar into locking engagement with the door upon arrival of the door at either a fully open or fully closed position with the camming means also serving to move the lock bar to an unlocked position upon subsequent reapplication of driving force to the rack so that the door can again be moved.

    Impact test machine
    3.
    发明授权
    Impact test machine 失效
    冲击试验机

    公开(公告)号：US3566668A

    公开(公告)日：1971-03-02

    申请号：US3566668D

    申请日：1969-07-30

    Applicant: SOUTHERN STEEL CO

    Inventor： BROWNING JAMES E ,  YOUNGBLOOD DAVID HULL

    IPC: G01N3/32 ,  G01N3/34

    CPC classification number: G01N3/32

    Abstract: AN IMPACE TEST MACHINE FOR IMPACCTING A TEST MEMBER A PLURALITY OF TIMES WITH AN IMPACT TOOL MOUNTED ON A CARRIAGE FOR VERTICAL MOVEMENT ALONG A PAIR OF GUIDE CHANNEL MEMBERS WITH A VERTICALLY RISING CHAIN FLIGHT ADJACENT THE GUIDE CHANNEL MEMBERS AND A LATCH BAR ENGAGEABLE WITH THE RISING CHAIN FLIGHT TO LIFT THE CARRIAGE TO AN UPPER POSITION AND A PIVOT PLATE ENGAGING THE LATCH BAR AND PIVOTED BY A STOP ON THE TOP OF ONE OF THE GUIDE CHANNELSFOR MOVING THE LATCH TO A RETRACTED POSITION FOR RETENTION BY DETENT MEANS SO THAT THE CARRIAGE AND IMPACT TOOL FALL UNDER THE INFLUENCE OF GRAVITY TO IMPACT AGAINST A TEST MEMBER WITH THE PIVOT PLATE INCLUDING AN INERTIA ARM ACTIVATED BY THE IMPACT WITH THE TEST MEMBER FOR PERMITTING RETURN OF THE LATCH BAR INTO ENGAGEMENT WITH THE RISING CHAIN FLIGHT SO THAT THE CARRIAGE WILL BE LIFTED UPWARDLY TO INITATE REPETITION OF THE CYCLE OF OPERATION.
    D R A W I N G

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