发明名称 Method and apparatus for safely feeding a machine manually
摘要 Material to be manually fed into a machine's point of operation is supported by a surface plate. A pusher, interrelated with the surface plate by keying means, is held by the machine operator such that the operator uses the pusher to push the material into the machine point of operation without having the operator's hands coming in dangerous proximity with the machine point of operation or with the machine's structure.
申请公布号 US4177666(A) 申请公布日期 1979.12.11
申请号 US19780899145 申请日期 1978.04.24
申请人 SINGER CO THE 发明人 DU BOIS, EDWARD F;PAPASTRAT, ARTHUR L
分类号 B21D55/00;(IPC1-7):B21D43/04;B21D5/02 主分类号 B21D55/00
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