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    Pneumatically-operated hoist with automatic control system
    4.
    发明授权
    Pneumatically-operated hoist with automatic control system 失效
    具有自动控制系统的气动工具

    公开(公告)号：US3791627A

    公开(公告)日：1974-02-12

    申请号：US3791627D

    申请日：1971-09-20

    Applicant: ZIMMERMAN D W MFG

    Inventor： STONE C ,  FOSTER E

    IPC: B66D1/44 ,  B66D3/18 ,  B66D1/00

    CPC classification number: B66D3/18 ,  B66D2700/026

    Abstract: A pneumatically-operated hoist is operated through an automatic, pneumatic control system. The operation of the hoist is initiated through an external signal for the pneumatic control system by means of which the hoist is automatically directed through a plurality of sequential steps. The hoist preferably has at least two remotely-positioned bleed elements which are operated through the pneumatic control elements to control the hoist pressure at predetermined values in a manner such that an operator can manipulate a load with the hoist in a desired manner without having to operate any manual controls at all. The control system also is equipped with a bleed element which opens to slowly bleed the hoist in the event of air failure, so that a load carried by the hoist can be safely lowered.

    Abstract translation: 气动提升机通过自动气动控制系统进行操作。 起重机的操作通过用于气动控制系统的外部信号启动，通过该外部信号，起重机通过多个顺序步骤自动引导。 起重机优选地具有至少两个远程定位的排放元件，其通过气动控制元件操作，以以预定值控制起重压力，使得操作者可以以期望的方式操纵起重机的载荷，而不必操作 任何手动控制器。 控制系统还配备有泄放元件，其在空气故障的情况下打开以缓慢地排出葫芦，从而可以安全地降低起重机承载的负载。

    Safety interlock for fluid-operated, load-handling apparatus
    5.
    发明授权
    Safety interlock for fluid-operated, load-handling apparatus 失效
    用于流体操作，负载处理装置的安全互锁

    公开(公告)号：US3734325A

    公开(公告)日：1973-05-22

    申请号：US3734325D

    申请日：1971-03-31

    Applicant: ZIMMERMAN D W MFG

    Inventor： STONE C

    IPC: B66C1/02 ,  B66C1/54 ,  B66D3/12

    CPC classification number: B66C1/54 ,  B66C1/0212 ,  B66C1/0218 ,  B66C1/0243 ,  B66C1/0256 ,  B66D3/12 ,  B66D2700/023

    Abstract: Load-handling apparatus is provided which includes a safety interlock to prevent the disengagement of a load when the apparatus is in an operative condition to balance or raise the load. The apparatus includes a fluid-operated hoist and a fluidoperated, load-engaging unit. A blocking valve is provided which is responsive to pressure of fluid for the hoist, which valve presents the load-engaging unit from disengaging the load when the pressure is at least equal to a predetermined value which is usually sufficient to at least balance the load.

    Abstract translation: 提供了装载处理装置，其包括安全联锁装置，用于当装置处于工作状态以平衡或提高负载时防止负载脱离。 该装置包括流体操作的起重机和流体操作的负载接合单元。 提供了一种阻塞阀，其响应于用于起重机的流体的压力，当压力至少等于通常足以至少平衡负载的预定值时，该阀使负载接合单元脱离负载。

    Apparatus for moving an object along a predetermined path
    8.
    发明授权
    Apparatus for moving an object along a predetermined path 失效
    用于在预定路径上移动对象的装置

    公开(公告)号：US3788491A

    公开(公告)日：1974-01-29

    申请号：US3788491D

    申请日：1971-05-28

    Applicant: ZIMMERMAN D W MFG

    Inventor： STONE C

    IPC: B66D3/18 ,  B66C17/00

    CPC classification number: B66D3/18 ,  B66D2700/026

    Abstract: Improved drive apparatus for moving an object along a predetermined path is provided. The object to be moved is supported and guided by a member which also establishes the predetermined path with the drive apparatus moving the object between at least two given positions on the path. The drive apparatus constitutes a fluid-operated cylinder and piston combination which is effective to operate a cable drum and correspondingly move a cable which is connected to the object to be driven. The fluid-operated apparatus moves the object along the path toward the apparatus when the cable is under sufficient tension, while other means are provided for moving the object in the opposite direction. If the path is at an angle to the horizontal, the object can be moved in the direction away from the fluid-operated apparatus by gravity; if the path is horizontal or substantially so, a fluid-operated tensioning device can be provided for moving the object away from the fluidoperated apparatus.

    Abstract translation: 提供了用于沿着预定路径移动物体的改进的驱动装置。 要被移动的物体由一个构件支撑和引导，该构件也与驱动装置建立预定的路径，使该物体在路径上的至少两个给定位置之间移动。 驱动装置构成流体动作的气缸和活塞组合，其有效地操作电缆滚筒并相应地移动连接到待驱动对象的电缆。 当电缆处于足够的张力下时，流体操作的装置将物体沿着路径移动到装置，而提供用于沿相反方向移动物体的其它装置。 如果路径与水平面成一定角度，物体可以通过重力沿远离流体操纵装置的方向移动; 如果路径是水平的或基本上这样的，则可以设置流体操作的张紧装置以使物体远离流体操作的装置移动。

    Hoist hook control
    9.
    发明授权
    Hoist hook control 失效
    挂钩控制

    公开(公告)号：US3656715A

    公开(公告)日：1972-04-18

    申请号：US3656715D

    申请日：1969-05-20

    Applicant: ZIMMERMAN D W MFG

    Inventor： POWELL EDGAR R

    IPC: B66D3/18 ,  B66D1/00

    CPC classification number: B66D3/18 ,  B66D2700/026 ,  Y10T137/2572

    Abstract: A control is provided for maintaining a predetermined position of a hoist hook. The control is designed particularly for a pneumatically operated hoist of the type shown in U.S. Pat. No. 3,325,148. In a hoist of that type, when the hoist hook is at rest or inactive in a predetermined position over a period of time, whether or not loaded, the hook will tend to slowly drop as air in the hoist tends to dissipate and the pressure decreases. The new control supplies regulated air to the hoist chamber to maintain a constant pressure therein when the hoist is not being operated, to prevent lowering of the hook. This air is supplied directly to the chamber, by-passing the remotely operated controller used to raise and lower loads.

    Abstract translation: 提供用于保持提升钩的预定位置的控制。 该控制器特别用于美国专利中所示的气动式起重机。 第3,325,148号。 在该类型的起重机中，当吊钩在一段时间内在预定位置处于静止或不活动状态时，无论是否被加载，当起重机中的空气倾向于消散并且压力降低时，钩将倾向于缓慢下降 。 新的控制装置在起重机未被操作时向调压室供应调节空气以保持其中的恒定压力，以防止吊钩的下降。 这种空气直接提供给室，旁路用于升高和降低负载的遥控控制器。

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