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    • 41. 发明授权
    • Pneumatic tool for reverse working sewer connections
    • 用于反向工作连接的气动工具
    • US3792601A
    • 1974-02-19
    • US3792601D
    • 1972-10-26
    • SHUR FLO INC
    • DILLINGHAM FO FIEL J
    • B21C37/29B21D39/06F16L55/00F16L55/179F16L55/26B21B
    • F16L55/00B21C37/29B21D39/06F16L55/179F16L55/26
    • A rotating, air driven working tool which may be placed in a sewer line a distance remote from the operator and be controlled and caused to reverse peen or roll a lead collar thereby securely attaching a house lateral to the primary sewer line. The preferred embodiment of the tool comprises a spring loaded air hammer tiltably secured to a housing containing pressure regulator and oiler connected to an air motor, planetary reduction gears rotatibly drive the lower component and the air hammer. In the secondary embodiment, a reverse tolling tool is utilized in lieu of the air hammer. The tool is positioned and controlled by an extension arm adjustably secured to a lateral tubing insert tiltably supporting a control handle which positions and tensions the tool in operating contact.
    • 旋转的空气驱动的工作工具,其可以放置在距离操作者一定距离的下水道中,并且被控制并且引起颠簸或滚动引导环,从而将主体侧面牢固地附接到主下水道。 该工具的优选实施例包括可倾斜地固定到壳体的弹簧加载气锤,该壳体包含连接到气动马达的压力调节器和加油器,行星减速齿轮可旋转地驱动下部部件和气锤。 在第二实施例中,使用反向收费工具来代替气锤。 该工具由可调节地固定到可倾斜地支撑控制手柄的侧向插入件上的延伸臂定位和控制,所述控制手柄在工作接触中定位和张紧工具。