Quick-set dial type torque wrench

Details Quick-set dial type torque wrench Quick-set dial type torque wrench

1988-07-05

1989-10-03

Hartman, Judy

Tools

Wrench, screwdriver, or driver therefor

Responsive to torque on work

B25B 23142

Patent

active

048708798

ABSTRACT:
A torque wrench including a shank, a ratchet arm, a torque assembly, a fixed handle, and an axially stable dial. The shank has a flattened portion and a cylindrical portion, both of which are hollow. The ratchet arm pivotably fits in the flattened portion of the shank and the torque assembly fits in the cylindrical portion of the shank. One end of the ratchet arm has a butt with a shank pin fixed on the end of it for contacting with a roller of the torque assembly. The force applied by the roller to the shank pin in proportional to the amount a dial is rotated by a user.

REFERENCES:
patent: 3355970 (1967-12-01), Knudsen et al.
patent: 3577815 (1971-05-01), Bergquist
patent: 3839928 (1974-10-01), Bergquist
patent: 4467678 (1984-08-01), Lindholm

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