发明名称 |
Apparatus for forming loops in tube sections for making sacks for the purpose of compensating for different lengths of sections |
摘要 |
Sections of bag-making material are successively and intermittently fed by double belt conveyors to arrive beneath a vertically reciprocatable push member which engages each section by suction and forms a central loop in each section while its ends are yieldingly engaged by brake shoes co-operating with side supports.
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申请公布号 |
US4285685(A) |
申请公布日期 |
1981.08.25 |
申请号 |
US19790071362 |
申请日期 |
1979.08.30 |
申请人 |
WINDMOLLER & HOLSCHER |
发明人 |
ACHELPOHL, FRITZ |
分类号 |
B31B1/04;B31B1/10;B31B1/26;B31B19/74;(IPC1-7):B31B1/52 |
主分类号 |
B31B1/04 |
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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