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    Electrically actuated door holder and release
    291.
    发明授权
    Electrically actuated door holder and release 失效
    电动执行门支架和释放

    公开(公告)号：US3926461A

    公开(公告)日：1975-12-16

    申请号：US49368574

    申请日：1974-08-01

    Applicant: RIXSON FIREMARK

    Inventor： D HOOGE RICHARD E

    IPC: E05F3/22 ,  E05F15/20 ,  E05C17/04

    CPC classification number: E05F3/222 ,  E05F15/72 ,  E05F2003/228 ,  E05Y2201/41 ,  E05Y2201/462 ,  E05Y2201/484 ,  E05Y2201/488 ,  E05Y2800/25 ,  E05Y2900/132 ,  Y10T292/301

    Abstract: An electrically actuated door holder and release for the multipoint holding of a pivoted door throughout a range of door open angles, and for the release of a held door either electrically or in response to manual override. The door holder comprises a channel which pivotally supports through linkages an elongated hold-open bar. An elongated friction strip is carried by the hold-open bar. The hold-open bar is normally held in hold-open position under tension by an armature spring coupled to the holdopen bar. The channel is formed with a slot which guides a slide block which moves linearly along the length of the hold-open bar in response to changes in the angle of door opening. The slide block carries a pivotally supported hold-open cam which engages the friction strip to effect door hold open in the event the armature linkage is further placed under tension by energization of an electromagnet. Upon deenergization of the electromagnet, or alternatively upon the application of a manual override door closing force, the hold-open bar is pivoted away from the slide block and the friction strip engaging cam and the door is released.

    Device for securing and tensioning coiled springs
    292.
    发明授权
    Device for securing and tensioning coiled springs 失效
    用于安全和张紧卷绕弹簧的装置

    公开(公告)号：US3741558A

    公开(公告)日：1973-06-26

    申请号：US3741558D

    申请日：1971-10-26

    Applicant: OCHS J

    Inventor： OCHS J

    IPC: E05D15/46 ,  E05F1/10 ,  F16F3/00 ,  F16F1/26

    CPC classification number: E05F1/1075 ,  E05D13/1215 ,  E05D15/463 ,  E05Y2201/488 ,  E05Y2201/492 ,  E05Y2800/21 ,  E05Y2900/106

    Abstract: A device for securing and tensioning garage door springs in place including a cross-bar member, a downwardly extending rod threadably connected at one end to the cross-bar member and having a hook at the other end adapted to engage an anchor bracket, a pair of spaced upwardly extending threaded rods which protrude through apertures in the cross-bar and have hooked upper ends adapted to be connected to the springs, and nuts on each of the lower ends of said threaded rods adapted to engage the lower face of the cross-bar so that the threaded rods may be axially adjusted relative to the cross-bar.

    Abstract translation: 一种用于将车库门弹簧固定和张紧到位的装置，包括横杆构件，向下延伸的杆，其一端螺纹连接到横杆构件，并且在另一端具有适于接合锚定支架的钩，一对 间隔开的向上延伸的螺杆，其突出穿过横杆中的孔，并且具有适于连接到弹簧的钩形上端，并且所述螺杆的每个下端上的螺母适于接合横截面的下表面， 使得螺杆可相对于横杆轴向调节。

    Hardware and devices for adjusting the spring tension in a counterbalance hinging system
    294.
    发明授权
    Hardware and devices for adjusting the spring tension in a counterbalance hinging system 失效
    用于调整平衡铰链系统中弹簧张力的五金件和装置

    公开(公告)号：US3555590A

    公开(公告)日：1971-01-19

    申请号：US3555590D

    申请日：1968-09-20

    Applicant: HOLMES HARDWARE & SALES CO

    Inventor： HALOPOFF WILLIAM

    IPC: B25B27/26 ,  B25B27/30 ,  E05D15/46 ,  F16F15/28 ,  B25B27/00 ,  E05F1/12

    CPC classification number: E05D13/1215 ,  E05D15/463 ,  E05Y2201/488 ,  E05Y2201/492 ,  E05Y2600/33 ,  E05Y2800/21 ,  E05Y2900/106 ,  F16F15/28 ,  Y10T16/538 ,  Y10T16/5386 ,  Y10T16/53885 ,  Y10T16/84 ,  Y10T29/53622

    Abstract: AN OVERHEAD GARAGE DOOR HINGING SYSTEM HAVING A SPRING FASTENER FOR ADJUSTABLY COUPLING COUNTERBALANCE SPRINGS TO A POWER ARM. THE SPRING FASTENER INCLUDES A PAIR OF SIDE PLATES BETWEEN WHICH THE POWER ARM IS PIVOTABLY MOUNTED THROUGH ONE OF A PLURALITY OF HOLES IN THE POWER ARM. A PLURALITY OF OPENINGS ARE SO SPACED ALONG THE SIDE PLATES THAT EACH OF THE OPENINGS ARE ALIGNED WITH A DIFFERENT ONE OF THE HOLES IN THE POWER ARM AT ONE POSITION OF THE HINGING SYSTEM, WHEREBY THE POINTS OF ATTACHMENT OF THE SPRINGS TO THE POWER ARM MAY BE CHANGED WITHOUT DISCONNECTING THE SPRINGS. THE COUNTERBALANCE SPRINGS ARE CONNECTED TO THE GARAGE STRUCTURE BY MEANS INCLUDING A SPRING-CONNECTING MEMBER AND A SLOTTED MOUNTING BRACKET WHICH ARE ADAPTED FOR ACCOMMODATING A TENSION-ADJUSTING TOOL FOR REPOSITIONING THE CONNECTING MEMBER, AND THEREFORE ADJUSTING THE TENSION OF THE SPRINGS. A SPRING SPREADER, HAVING SPRING-CONNECTION LUGS MOUNTED ON A SHAFT SO AS TO CONVERT ROTATIONAL MOTION OF THE SHAFT INTO LINEAR DISPLACEMENT OF THE LUGS, IS PROVIDED FOR CONVENIENTLY INSTALLING THE COUNTERBALANCE SPRINGS. A MOUNTING MEMBER POSITIONING TOOL IS FURTHER PROVIDED FOR RELEASABLY ENGAGING ONE LEG OF A MOUNTING BRACKET OF THE HINGING SYSTEM, SO THAT THE GARAGE DOOR MAY BE DETACHED AND REINSTALLED WITHOUT DISCONNECTING THE SPRINGS FROM THE SYSTEM.

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