发明授权
- 专利标题： Charging hole lid and magnetic lid lifter apparatus
- 专利标题（中）： 充电盖和磁力锁扣装置
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申请号： US3689369D申请日： 1971-04-05
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公开(公告)号： US3689369A公开(公告)日： 1972-09-05
- 发明人: TUCKER LINWOOD G
- 申请人： KOPPERS CO INC
- 专利权人： Beazer East Inc
- 当前专利权人： Beazer East Inc
- 优先权： US13107671 1971-04-05
- 主分类号： C10B25/20
- IPC分类号： C10B25/20 ; C10B25/24 ; C10B31/00
摘要：
A coal charging hole lid for a coke oven chamber has a plurality of radially arranged grooves in its top surface. A magnet for lifting and seating the lid has a plurality of resiliently biased pins around its periphery that coact with respective grooves in the lid and effect positive rotative action of the lid when it has been reseated in the charging hole.
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