Apparatus for producing grooves
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United States of America Patent
Stats
-
Jan 3, 1989
Grant Date -
N/A
app pub date -
Apr 6, 1987
filing date -
Apr 29, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
There is provided apparatus for grooving or producing partial cuts extend parallel to the direction of transport in paper webs, blanks, cardboard boxes and like workpieces, particularly in the manufacture of envelopes with at least one rotatably mounted grooving disc and an opposing tool in the shape of a roller. Prior to the grooving operation, the workpiece is bent about an axis transverse to the direction of transport.
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Family
International Classification(s)
Cited Art Landscape
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