Full rotation type paper web cutting device

Details Full rotation type paper web cutting device Full rotation type paper web cutting device

1978-01-17

1978-09-19

Abercrombie, Willie G.

Cutting

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

Orbital motion of cutting blade

83349, 83583, 83596, 83674, 83694, B26D 156, B23D 2508

Patent

active

041144910

ABSTRACT:
A paper web cutting device of a full rotation type comprises, in combination: a rotary cutter including a shank with rotary shafts at both ends, a cutting blade affixed to the shank, with its edge inclined circumferentially relative to the common axis of the shafts, a guide ring located at the cutting starting end of the blade and having a radius of rotation equal to that of the edge, and a second guide member located at the cutting terminating end of the blade and having a volute configuration, with its radius of rotation gradually decreased from the initial value equal to the radius of rotation of the edge; and a stationary cutter having a straight edge and supported in place by pivot pins at both ends, in such a manner that, at the cutting terminating end, the edge is graded to interfere slightly with the radius of rotation of the rotary cutter edge, the edge being forced by a spring to bear against the rotary cutter.

REFERENCES:
patent: 3322012 (1967-05-01), Murray
patent: 3733949 (1973-05-01), Bradley
patent: 3812753 (1974-05-01), Kiejzik

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