Interconnected movable members

Details Interconnected movable members Interconnected movable members

1991-06-13

1992-04-14

Hartman, J. J.

Work holders

Plural holders to hold workpieces relative to each other

Workpieces parallel to each other

29238, B25B 120

Patent

active

051041022

ABSTRACT:
Apparatus to effect simultaneous and aligned movement of members toward and away from each other including first, second and third collar members, and a lever arm pivotally secured at its midpoint to the first collar member. The second and third collar members are attached to opposite ends of the lever arm, and the lever arm extends equal degrees to opposite sides of its pivotal connection to the first collar member. The first collar member is held in a fixed position, and the lever arm is rotated such that the second and third collars members, each grasping respective workpieces, are moved simultaneously toward or away from each other an identical distance.

REFERENCES:
patent: 431054 (1890-07-01), Henderson
patent: 3653115 (1972-04-01), Perkins
patent: 40549*84 (1977-10-01), Ball et al.
patent: 4420921 (1983-12-01), Hardin
patent: 4769889 (1988-09-01), Landman et al.
patent: 4856168 (1989-08-01), Bazinet et al.

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