发明名称 |
Roller system for continuous transport of webs of sheeting |
摘要 |
A high-speed roller system for transporting webs of sheeting, preferably for coating the same with a magnetic layer, comprising a suction roller for control of the speed of the web, which suction roller has a surface containing grooves, preferably rhombic grooves, in which the perforations for sucking the sheeting are disposed, preferably at the points of intersection, the ratio of the total cross-sectional area of the perforations to the total surface area of the roller being from 0.7 to 3%.
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申请公布号 |
US4029249(A) |
申请公布日期 |
1977.06.14 |
申请号 |
US19750612757 |
申请日期 |
1975.09.12 |
申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
NAGEL, PETER;GRAU, WERNER;MAIER, HERMANN;WITTKAMP, HEINRICH;FALK, ROLAND;WILLMANN, PAUL |
分类号 |
B65H20/12;B65H27/00;G11B5/84;(IPC1-7):B65H17/30 |
主分类号 |
B65H20/12 |
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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