Wrench with rack and segment gear linkage

A wrench, comprising,

• a handle member;
• a pivot arm member;
• a jaw member integral with each of said handle member and pivot arm member at a proximal end thereof;
• said handle member and pivot arm member being pivotally connected to one another and being pivotally movable about a pivot point between a first position where said jaw members are spaced apart from one another and a second position where said jaw members are in closely spaced relation to one another;
• a bias means for urging said jaw members into said first position;
• a segment gear member having an axis of rotation coincident with said pivot point;
• a pivot arm member incorporating a segment gear member;
• a rack gear member slideably mounted in the handle member between a distal position remote from said jaw members and a proximal position;
• said segment gear meshingly engaging said rack gear member;
• said pivot point being positioned intermediate a proximal end of said wrench and a distal end of said wrench so that squeezing said handle member and pivot arm member overcomes said bias means and places said jaw members into said second position.

A wrench, comprising,

• a handle member having a fixed position jaw means formed in a proximal end thereof;
• a pivot arm member having a movable jaw means formed in a proximal end thereof;
• said handle and pivot arm members being pivotally secured to one another substantially mid-length thereof;
• a pivot point means for providing said pivotal interconnection;
• a bias means operative to separate the proximal ends of said handle members away from one another;
• said pivot point means dividing said wrench into a proximal, jaw-carrying portion and a distal portion;
• a linkage means interconnecting said handle member and pivot arm member;
• and
• said linkage means including a rack gear member.