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    • 24. 发明授权
    • Pneumatically operated cable-slitting tool
    • 气动电缆切割工具
    • US4024794A
    • 1977-05-24
    • US329248
    • 1973-02-02
    • Daniel Baker Grubb
    • Daniel Baker Grubb
    • F15B15/14B26B17/02B26D5/04F15B11/18
    • B26B17/02B26D5/04Y10T137/87064
    • A three-position pneumatic tool having a toggle trigger for actuating a control rod which in turn controls a pair of pneumatic check-valves. Three interconnected, tandemly arranged piston assemblies are operatively associated with an air pressure source at one end while also being operatively associated with a work assembly at the other end. The trigger is spring-biased to a location wherein the tool is in a neutral workpiece engaging position. Actuation of the trigger in one direction will open one of the pneumatic valves whereupon air pressure acts upon the upper surface of one of the pistons so as to lower or retract the tool to a workpiece insertion position. Release of the trigger permits the tool to attain the workpiece engaged or neutral position. Rotation of the trigger in the opposite direction permits the other pneumatic valve to open whereupon air pressure acts upon the lower surfaces of all the pistons so as to raise and actuate the tool to the operating position.
    • 三位置气动工具具有用于致动控制杆的拨动扳机,控制杆又控制一对气动止回阀。 三个相互连接的串列布置的活塞组件在一端与空气压力源可操作地相关联,同时在另一端可操作地与工作组件相关联。 触发器被弹簧偏置到工具处于中立工件接合位置的位置。 触发器在一个方向的致动将打开一个气动阀,由此空气压力作用在一个活塞的上表面上,以便将工具下降或缩回到工件插入位置。 触发器的释放允许工具达到工件啮合或中立位置。 触发器沿相反方向的旋转允许另一气动阀打开,由此空气压力作用在所有活塞的下表面上,以便将工具升高并致动到操作位置。
    • 25. 发明授权
    • Cutting tool
    • 切割用具
    • US3660898A
    • 1972-05-09
    • US3660898D
    • 1970-07-15
    • SIGVARD HAST
    • HAST PER SIGVARD
    • A01G3/04A01G3/025B23D29/02B26B17/02
    • A01G3/02B23D29/023B26B17/02
    • A tool for cutting branches, hoses, electrical conductors, and like objects comprises a stationary part with an abutment, and a cutting part displaceable towards the abutment, said parts being separated in such manner that the object to be cut can be inserted laterally therebetween. The cutting part is a thin steel blade which is guided in a slot in a guide member. According to the invention, the guide member is displaceable towards the abutment and cooperates with a guide in the stationary part, and besides the steel blade and the guide member cooperate with spring means tending to retain the steel blade within the guide part.
    • 用于切割分支,软管,电导体和类似物体的工具包括具有邻接件的固定部分和可朝向邻接部位移动的切割部分,所述部件以使得被切割物体横向插入其中的方式被分离。 切割部是在引导部件的狭槽中引导的薄钢刀片。 根据本发明,引导构件能够朝向邻接部位移动,并与固定部件中的引导件配合,并且除了钢制刀片和引导构件之外还配合有倾向于将钢刀片保持在引导部件内的弹簧装置。