Cutting – Tool or tool with support – Pointed perforators
Patent
1996-07-23
1999-02-09
Dexter, Clark F.
Cutting
Tool or tool with support
Pointed perforators
83346, 83678, B26F 120
Patent
active
058680578
ABSTRACT:
The invention provides a perforation cutting rule for a rotary cutting machine and method of operating the same. The cutting rule has a length, height and thickness and includes a plurality of dovetail-shaped gaps formed along a longitudinal edge to define a plurality of dovetail-shaped cutting teeth. Each tooth includes an outer cutting end and an inner base end, the outer cutting end having a length greater than an inner base end. As the cutting end cuts through multiple sheets the angled sides of the dovetail-shaped teeth provide a relief area to prevent the sheets from bunching or pulling against the teeth during the cutting operation.
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Dexter Clark F.
Western Printing Machinery Company
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