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    Quick opening device for dry-pipe valves of automatic sprinkler systems
    3.
    发明授权
    Quick opening device for dry-pipe valves of automatic sprinkler systems 失效
    自动喷淋系统干管阀快速开启装置

    公开(公告)号：US3727878A

    公开(公告)日：1973-04-17

    申请号：US3727878D

    申请日：1971-07-15

    Applicant: NORRIS INDUSTRIES

    Inventor： WILLMS C

    IPC: A62C35/66 ,  A62C37/06 ,  F16K31/145

    CPC classification number: A62C35/66 ,  Y10S137/907

    Abstract: A component for automatic sprinkler systems employed for fire protection is provided which is useful in dry-pipe systems to cause rapid opening of the dry-pipe valve of such systems in response to a slight but rapid decrease of air pressure in the sprinkler piping network attendant upon opening of a sprinkler head. Slow decreases in such pressure in relation to atmospheric pressure are off-set by an atmospheric bleed valve, a readily accessible adjustment for altering and visibly indicating the trip-off pressure is provided, and provision is made for either electrical or pneumatic operation.

    Abstract translation: 提供了用于防火的自动喷水灭火系统的部件，其在干管系统中有用，以响应于喷洒管道网络服务员中的空气压力的轻微而快速的降低而迅速打开这种系统的干管阀 打开喷头时。 相对于大气压力的这种压力的缓慢下降被大气泄放阀偏移，提供了用于改变和可视地指示脱扣压力的容易接近的调节，并且提供电气或气动操作。

    Cylinder plug retainer for padlock
    4.
    发明授权
    Cylinder plug retainer for padlock 失效
    气缸保护套

    公开(公告)号：US3626729A

    公开(公告)日：1971-12-14

    申请号：US3626729D

    申请日：1970-08-17

    Applicant: NORRIS INDUSTRIES

    Inventor： FANE WILLIAM J ,  SANDERS VERNARD W

    IPC: E05B67/24 ,  E05B9/04 ,  E05B17/04

    CPC classification number: E05B67/24 ,  Y10T70/409 ,  Y10T70/459 ,  Y10T70/7655 ,  Y10T70/7706

    Abstract: A PADLOCK BODY CONSTRUCTED OF MULTIPLE LAMINATIONS HAS A CHAMBER OCCUPIED BY A PIN TUMBLER LOCK FOR LOCKING AND UNLOCKING A SHACKLE. INWARDLY FACING NOTCHES IN RESPECTIVE LONG AND SHORT LEGS OF THE SHACKLE ARE ENGAGED BY LOCKING LUGS OF A LOCKING PLATE WHICH IS ROTATED TO LOCKED POSITION BY AN EXTENSION ON A ROTATING CYLINDER PLUG IN THE LOCK. THE EXTENSION PROTRUDES THROUGH AN OPENING IN THE LOCKING PLATE AND OPPOSITE OUTWARDLY FACING UNDERCUT SEGMENTS OF THE CYLINDER PLUG OVERLIE THE LOCKING PLATE TO HOLD THE PIN TUMBLER LOCK IN THE CHAMBER. STOPS RESPECTIVELY ON THE CYLINDER PLUG PREVENT ROTATION OF THE CYLINDER PLUG TO A POSITION OF POTENTIAL DISENGAGEMENT WHEN THEY ENGAGE IN ONE DIRECTION SHOULDERS FORMED IN THE OPENING IN THE CYLINDER PLUG AND IN THE OPPOSITE DIRECTION A SHOULDER FORMING PART OF ONE OF THE END LAMINATIONS.

    Exit device vertical rod upper latching and holddown mechanism
    5.
    发明授权
    Exit device vertical rod upper latching and holddown mechanism 失效
    退出设备垂直上锁和锁定机构

    公开(公告)号：US3600022A

    公开(公告)日：1971-08-17

    申请号：US3600022D

    申请日：1968-08-22

    Applicant: NORRIS INDUSTRIES

    Inventor： ARMSTRONG RICHARD L

    IPC: E05B63/20 ,  E05B65/10 ,  E05C9/18

    CPC classification number: E05B65/1013 ,  E05B63/20 ,  E05B65/1066 ,  Y10T292/1071

    Abstract: An exit device consisting of a crossbar adapted to be pushed to raise upper and lower vertical actuating rods which in turn release respective upper and lower latchbolts so that the door can be opened. The upper latchbolt is pivoted near its outside end so that when released, it will fall into a withdrawn position by gravity, assisted by a wiping of a front face of the latchbolt by a retaining plate on the doorframe. A blocker, pivoted on the inner side of the housing, holds the latchbolt in extended locked position by engagement with a downwardly facing shoulder on the inner side of the latchbolt. The upper actuating rod is linked to the blocker in such fashion that the blocker is swung out of blocking position when the actuating rod is lifted. When the actuating rod is released, the weight of the rod serves to urge the blocker toward blocking position. The upper latchbolt is returned from retracted position to extended position by a slide which is shifted transversely toward the latchbolt when the slide strikes a strike face, the slide then serving to push upon a projection on the upper latchbolt which tilts the latchbolt into the extended position, where it is blocked by the blocker until released. A lower latchbolt is also pulled to released position by upward movement of the lower actuating rod and held in released position as long as the upper latchbolt is held in released position. Also, the lower latchbolt is held in latched position as long as the upper latchbolt is held in latched position by the blocker.

    Exit device vertical rod collapsible latch bolt
    6.
    发明授权
    Exit device vertical rod collapsible latch bolt 失效
    退出设备垂直拉杆可拉锁栓

    公开(公告)号：US3583740A

    公开(公告)日：1971-06-08

    申请号：US3583740D

    申请日：1968-08-22

    Applicant: NORRIS INDUSTRIES

    Inventor： ARMSTRONG RICHARD L

    IPC: E05B63/20 ,  E05B65/10 ,  E05C3/02

    CPC classification number: E05B63/20 ,  E05B65/1013 ,  Y10T292/0822 ,  Y10T292/1078 ,  Y10T292/1092

    Abstract: An exit device consisting of a crossbar adapted to be pushed to raise upper and lower vertical actuating rods which in turn release respective upper and lower latch bolts so that the door can be opened. The upper latch bolt is pivoted near its outside end so that, when released, it will fall into a withdrawn position by gravity, assisted by a wiping of a front face of the latch bolt by a retaining plate on the door frame. A blocker, pivoted on the inner side of the housing, holds the latch bolt in extended locked position by engagement with a downwardly facing shoulder on the inner side of the latch bolt. The upper actuating rod is linked to the blocker in such fashion that the blocker is swung out of blocking position when the actuating rod is lifted. When the actuating rod is released, the weight of the rod serves to urge the blocker toward blocking position. The upper latch bolts is returned from retracted position to extended position by a slide which is shifted transversely toward the latch bolt when the slide strikes a strike face, the slide then serving to push upon a projection on the upper latch bolt which tilts the latch bolt into the extended position, where it is blocked by the blocker until released. A lower latch bolt is also pulled to released position by upward movement of the lower actuating rod and held in released position as long as the upper latch bolt is held in released position. Also, the lower latch bolt is held in latched position as long as the upper latch bolt is held in latched position by the blocker.

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