Hook-on grab bucket, in particular motor-driven underwater grab bucket
    5.
    发明授权
    Hook-on grab bucket, in particular motor-driven underwater grab bucket 有权
    钩式抓斗,特别是电动水下抓斗

    公开(公告)号:US07207127B2

    公开(公告)日:2007-04-24

    申请号:US10886224

    申请日:2004-07-06

    申请人: Wolfgang Rohr

    发明人: Wolfgang Rohr

    IPC分类号: E02F3/76

    CPC分类号: E02F3/47 B66C3/16

    摘要: A grab bucket, in particular motor-driven underwater grab bucket, has first and second half-scoops. The scoops can be moved relative to on another from an open position into a closed position by a hydraulic cylinder. The opening angle of the half-scoops is monitored by a sensor which is connected to a control and monitoring device. The sensor is integrated in the hydraulic cylinder and generates an actuating-travel signal which corresponds to the actuating travel of the hydraulic cylinder.

    摘要翻译: 抓斗,特别是电动水下抓斗,具有第一和第二半铲。 勺子可以通过液压缸从打开位置相对于另一个移动到关闭位置。 半勺的打开角度由连接到控制和监视装置的传感器监测。 传感器集成在液压缸中,并产生对应于液压缸的启动行程的致动行程信号。

    Floating dredger
    6.
    发明授权
    Floating dredger 失效
    浮动干旱

    公开(公告)号:US5179793A

    公开(公告)日:1993-01-19

    申请号:US596967

    申请日:1990-10-15

    申请人: Wolfgang Rohr

    发明人: Wolfgang Rohr

    CPC分类号: E02F7/023 B66D1/62

    摘要: The floating dredger is provided with a floating body and a framework 1 on which a drive for driving pulleys 2,3,4 is mounted. Over the driving pulley 2 a hoisting rope 5 is put; on both sides of the pulley the grippers 6,7 are suspended, by means of rope pulleys 8. Each of the hoisting rope 5 ends is fastened to a compensating winch 9,10 which provides for the rope to be compensated for varying dredging depths.

    摘要翻译: 浮式挖泥船设置有浮体和框架1,驱动带轮2,3,4的驱动装置安装在该框架1上。 在驱动滑轮2上放置起重绳索5; 在滑轮的两侧,夹具6,7通过绳索滑轮8悬挂。每个提升绳索5的端部被紧固到补偿绞盘9,10,该绞盘提供要补偿的绳索以改变疏浚深度。

    Preparation of alkoxy maleic anhydrides

    公开(公告)号:USRE33820E

    公开(公告)日:1992-02-11

    申请号:US592847

    申请日:1990-10-04

    CPC分类号: C07D207/456 C07C59/58

    摘要: The invention relates to novel alkoxy substituted maleimides of the formula ##STR1## where R.sup.1 is hydrogen, C.sub.1 -C.sub.8 -alkyl, C.sub.2 -C.sub.8 -alkenyl, phenyl or phenylalkyl, and the organic radicals may furthermore carry inert substituents, and R.sup.2 and R.sup.3 are each C.sub.1 -C.sub.4 -alkyl, C.sub.2 -C.sub.4 -alkenyl, C.sub.1 -C.sub.4 -haloalkyl or C.sub.2 -C.sub.4 -haloalkenyl, and alkoxy-substituted maleic anhydrides of the formula II ##STR2## where R.sup.2 is C.sub.1 -C.sub.4 -alkyl, C.sub.2 -C.sub.4 -alkenyl, C.sub.1 -C.sub.4 -haloalkyl or C.sub.2 -C.sub.4 -haloalkenyl and Z is hydrogen, halogen or a radical OR.sup.3, where R.sup.3 is C.sub.1 -C.sub.4 -alkyl, C.sub.2 -C.sub.4 -alkenyl, C.sub.1 -C.sub.4 -haloalkyl or C.sub.2 -C.sub.4 -haloalkenyl.The invention further relates to processes for preparing such maleimides I and the corresponding maleic anhydrides II and their use as graft monomers in graft polymers based on polyphenylene ethers.

    Cutoff device for crane systems
    8.
    发明授权
    Cutoff device for crane systems 失效
    起重机系统的截止装置

    公开(公告)号:US4804095A

    公开(公告)日:1989-02-14

    申请号:US198703

    申请日:1988-05-17

    摘要: The cutoff device is provided for crane systems, especially a dredger to which a grab 1 is attached. Grab 1 has a cable 5 connected to it, which is guided over pulleys 4, 7 and kept under tension with the help of a weight 9. One of the two pulleys 4 is provided with an initiator 12 that has segments mounted on its periphery, so pulses are generated by the rotation of pulley 4 past the initiator and the drive mechanism is switched off when the pulses fail to occur.

    摘要翻译: 切断装置设置用于起重机系统,特别是抓斗1附接的挖泥船。 抓斗1具有连接到其上的电缆5,其被引导到皮带轮4,7上,并且在重量9的帮助下保持张力。两个​​滑轮4之一设置有引导器12,其具有安装在其周边上的段, 因此通过滑轮4的旋转经过起动器产生脉冲,并且当脉冲不能发生时驱动机构被关闭。