Cutlery – Cutting tools – Plural cooperating blades
Patent
1976-05-14
1977-11-22
Peters, Jimmy C.
Cutlery
Cutting tools
Plural cooperating blades
30231, B26B 1316, B26B 1326
Patent
active
040588947
ABSTRACT:
The shears comprises a frame, a first jaw integral with the frame, a second jaw pivotable relative to the first jaw, a lever for operating the shears, a first pivot pin pivotally connecting the lever to the frame, a first structure, a second pivot pin pivotally connecting the first structure to the frame, a second structure, a third pivot pin pivotally connecting the second structure to the lever. The first, second and third pivot pins are parallel. The first structure comprises a member mounted to be slidable on the second structure in a direction in alignment with the third pivot pin. A first elastically yieldable device having a rotary action and capable of exerting a substantially constant force is mounted between the frame and the first structure. A second elastically yieldable device having a rectilinear action and capable of exerting a cumulative force is mounted on the second structure between a fixed part of the second structure and the slidable member of the first structure. The two elastically yieldable means are capable of acting in a direction for biasing the lever to its position of rest.
REFERENCES:
patent: 2391598 (1945-12-01), Serdich
patent: 3090121 (1963-05-01), Chonka
patent: 3587173 (1971-06-01), Hexdall
Laminoirs Trefileries Cableries de Lens (Anciens Etablissements
Peters Jimmy C.
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