发明名称 |
Electrolytic production of aluminum |
摘要 |
<p>Cylinder has in its two end positions locking elements engaging the piston. The locking element coordinated with the piston in the position is shaped and arranged so that it is kept out of engagement with the piston by the operating pressure of the pneumatic or hydraulic medium. Use: making perforations in the walls of reduction furnaces producing aluminium.</p> |
申请公布号 |
DE1807273(A1) |
申请公布日期 |
1970.05.06 |
申请号 |
DE19681807273 |
申请日期 |
1968.11.01 |
申请人 |
ERNST KLEIN & CO GMBH,APPARATEBAU |
发明人 |
OESMANN,DR.-ING.WALTER |
分类号 |
B25D9/12;B25D17/06;F01B17/00;F01B17/02 |
主分类号 |
B25D9/12 |
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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