发明名称 |
Control system for positioning and operating a pneumatic percussion tool |
摘要 |
A control system controlling the movements of a pneumatic percussion tool for breaking crust away from anode butts in an electrolysis cell. The system comprises a control arm extending through first and second plates connected to respective first and second valve stems. In a preferred embodiment, the first valve stem operates a hydraulic scissors jack for extending and retracting the tool, and the second valve stem operates a hydraulic rotator motor for radially rotating a mast supporting the tool. A preferred system also comprises a pneumatic control valve connected to the control arm for positioning and energizing the percussion tool.
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申请公布号 |
US4702324(A) |
申请公布日期 |
1987.10.27 |
申请号 |
US19840609857 |
申请日期 |
1984.05.14 |
申请人 |
ALUMINUM COMPANY OF AMERICA |
发明人 |
PEINECKE, DALE R.;ROBAK, JR., CASIMIR B.;DUBS, ROBERT A. |
分类号 |
B25D17/28;(IPC1-7):E21B15/04 |
主分类号 |
B25D17/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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