Rotary cutter apparatus
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United States of America Patent
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May 12, 1987
Grant Date -
N/A
app pub date -
Sep 27, 1985
filing date -
Sep 27, 1985
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A rotary cutting apparatus in which the cutting of thin material is possible without the use of a curved blade. The fly and bed knives are positioned according to the formula C=R-.sqroot.R.sup.2 -(tangent S.times.L).sup.2 where C is bed knife camber, R is cutting radius, S is shear angle and L is rotor length. As a result of this geometry, uniform fly knife to bed knife clearance is maintained across the face of the rotor.
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