Device for biaxially stretching film

申请公布号:
US4679283(A)
申请号:
US19850728880
申请日期:
1985.04.30
申请公布日期:
1987.07.14
申请人:
E. I. DU PONT DE NEMOURS AND COMPANY
发明人:
FORREST, JR., ALBERT W.
分类号:
B65H20/16;B29C55/10;B29C55/16;B65H23/028;F16H19/02;(IPC1-7):D06C3/04
主分类号:
B65H20/16
摘要:
A device is disclosed for a variable speed carrier with power input from a chain drive to a sprocket on the carrier and power output to cones affixed to the sprocket and running on a pair of rails of variable spacing.
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