Perforating device

Details Perforating device Perforating device

1984-05-29

1985-10-22

Schran, Donald R.

Cutting

Cutting motion of tool has component in direction of moving...

Orbital motion of cutting blade

83670, 83686, 83690, 83698, B26F 108

Patent

active

045481130

ABSTRACT:
A device for perforating a web or sheet of material, includes a rotatable male die carrier roll having at least one radially extending cylindrical bore opening into its outer periphery, and a male die holder comprising a hollow cylinder having an outer diameter substantially equal to the diameter of the bore and being removably located within the bore. The outer and inner cylindrical surfaces of the hollow cylinder are substantially smooth, and the cylinder has a through slit extending in a radial direction completely between such surfaces and completely between opposite ends thereof. And, means are provided for applying an external force against the cylinder for frictionally holding a male die member in place therewithin, the slit in the cylinder permitting it to yield to such force supplying means.

REFERENCES:
patent: 1649635 (1927-11-01), Williard
patent: 2116391 (1938-05-01), Gochoel
patent: 2264134 (1941-11-01), Hawley
patent: 2378806 (1945-06-01), Stellin
patent: 3106859 (1963-10-01), Huffman
patent: 3192810 (1965-07-01), Amato
patent: 3194095 (1965-07-01), Buck et al.
patent: 3602080 (1971-08-01), Sickel
patent: 3828632 (1974-08-01), Grano
patent: 4094185 (1978-06-01), Wang
patent: 4273015 (1981-06-01), Johnson
patent: 4434690 (1984-03-01), Mauer

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