Cutting – Means to drive or to guide tool – With tool positioning means synchronized with cutting stroke
Patent
1975-11-03
1976-08-24
Yost, Frank T.
Cutting
Means to drive or to guide tool
With tool positioning means synchronized with cutting stroke
83561, 83562, 83658, 83700, B26D 106, B27L 508
Patent
active
039759768
ABSTRACT:
Cutting apparatus including an elongate knife shiftable between cutting and noncutting positions, and an elongate anvil having an arcuate striking surface against which the knife may strike. The anvil includes an elongate shaft having an arcuate lower surface which rests in an elongate cradle and is rotatable about its longitudinal axis. The upper surface of the shaft facing the knife has a resilient covering secured thereto. A rotator connected to the anvil is operable to produce random angular incremental rotation of the anvil between cutting strokes of the knife to present different cutting surfaces of the anvil to the knife. The support for the anvil includes a support member having a pair of oppositely facing, angularly disposed surfaces and a pair of holding blocks having angularly disposed surfaces which engage the surfaces of the support member. A screw operatively connected to the holding blocks is operable to urge the holding blocks toward or away from each other to produce raising or lowering of the support member and the anvil resting thereon. The holding blocks also may be shifted in the same direction along the screw means to shift the anvil laterally of the knife.
REFERENCES:
patent: 1236508 (1917-08-01), Wadhams
patent: 1676260 (1928-07-01), Glidden
patent: 2405598 (1946-08-01), Miller
patent: 2690219 (1954-09-01), Feiertag
patent: 3837250 (1974-09-01), Lumn
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