Variable force compound action leverage tool

Details Variable force compound action leverage tool Variable force compound action leverage tool

1987-02-10

1991-06-04

Yost, Frank T.

Cutlery

Cutting tools

Plural cooperating blades

30252, 30260, 30341, B26B 1328

Patent

active

050202227

ABSTRACT:
Shears are provided with a cutting mechanism for obtaining maximum leverage at the point in the cutting stroke corresponding to the maximum resistance. The cutting mechanism comprises cooperating first and second shearing members and a lever arm. The lever arm is pivotally connected to the first shearing member and a sliding connection is effected between the second shearing member and the lever arm.

REFERENCES:
patent: 107542 (1870-09-01), Richard
patent: 2384822 (1945-09-01), Drmic
patent: 3232355 (1966-02-01), Woolworth
patent: 3273238 (1966-09-01), Kuhbier
patent: 3650028 (1972-03-01), La Pointe
patent: 4341016 (1982-07-01), Harrison et al.

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