Cutlery – Cutting tools – Plural cooperating blades
Patent
1976-06-25
1977-11-22
Peters, Jimmy C.
Cutlery
Cutting tools
Plural cooperating blades
30 92, 30189, B26B 1326
Patent
active
040588939
ABSTRACT:
A cutter comprising a first rigid elongate bar, a second shorter bar pivotally mounted on the first bar with an end of the longer bar and an end of the shorter bar coinciding for pivotal movement about an axis spaced from the coinciding ends, said coinciding ends embodying opposed cutting edges movable relative to each other for receiving a part for shearing, a lever arm pivotally mounted on the first bar for rotation thereon about a pivot spaced from the pivot connecting the first and second bars and cam elements on the lever arm and at the distal end of the second bar mutually engageable by swinging the lever arm about its pivot to effect relative movement of the opposed cutting edges to first apply a high shearing force at a relatively low speed between the cutting edges at the beginning of the blade movement and thereafter a lower shearing force at a relatively high speed through the remainder of the cutting movement.
REFERENCES:
patent: 401308 (1899-04-01), Selleck
patent: 993646 (1911-05-01), Burkett
patent: 1469467 (1923-08-01), Wagenbach
patent: 1831447 (1931-11-01), Heinrich
patent: 2319558 (1943-05-01), Romanoff
patent: 2385835 (1945-10-01), Neal
patent: 2647312 (1953-08-01), Neal
patent: 2682795 (1954-07-01), Neal
patent: 2874465 (1959-02-01), Sillak
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