发明名称 |
Withdrawal tool for street manhole cover mounting ring - uses rigid ring adjoining manhole cover mounting ring on outside on ground support, and supporting vertically acting jack |
摘要 |
<p>The withdrawal tool is for a street manhole cover mounting ring (16) and involves a rigid ring adjoining the cover mounting ring on the outside and resting on a ground support (1) which in its middle in the ring centre line supports a vertically acting jack (8). The jack supports at its upper end a horizontal yoke (2) in its centre and at its free ends supports suspended withdrawal arms (11) with outwardly directed hooks (12). A unit (13) is provided by means of which the arms are held with the hooks gripping under the street manhole cover ring flange part (17).</p> |
申请公布号 |
SE502867(C2) |
申请公布日期 |
1996.02.05 |
申请号 |
SE19940002093 |
申请日期 |
1994.06.14 |
申请人 |
AB MASKINARBETEN |
发明人 |
INGVAR *JOHANSSON;GOETE *ALM |
分类号 |
B66F19/00;E02D;E02D29/14;(IPC1-7):B66F19/00 |
主分类号 |
B66F19/00 |
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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