Metal deforming – With means to actuate both elements of tool-couple – Handle actuated
Patent
1979-10-04
1981-08-18
Larson, Lowell A.
Metal deforming
With means to actuate both elements of tool-couple
Handle actuated
81419, B21D 3712
Patent
active
042839335
ABSTRACT:
A tool such as a pair of pliers, designed to handle cables, rods and similar workpieces of generally circular cross-section, has two coacting jaws swingably linked via respective shanks with operating means such as a pair of handles. The two shanks are limitedly relatively rotatable about a pivotal axis paralleling the swing axes of the jaws, each jaw comprising an elongate base with upstanding parallel webs transverse to the swing plane having workpiece-engaging faces alternately inclined in opposite directions with reference to that plane so as to form a channel around the workpiece in a working position. The relative motion of the shanks can be limited by an abutment or a link to establish a position of maximum jaw separation in which at least the webs closest to the pivotal axis still interengage to insure proper interfitting of all the webs upon the next return to the working position. Alternatively, or conjointly therewith, the separated jaws are resiliently biased against stops on their shanks holding their webs and interstices mutually aligned for interengagement.
REFERENCES:
patent: 920834 (1909-05-01), Deevy
patent: 2584353 (1952-02-01), Keiser
patent: 2639754 (1953-05-01), Macy
patent: 2743634 (1950-05-01), Badeau
patent: 2783669 (1957-03-01), Scarborough
patent: 2814222 (1957-11-01), Sanders
patent: 3417599 (1968-12-01), Burns
Larson Lowell A.
Pressmaster A.B.
Ross Karl F.
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