Torque wrench

Details Torque wrench Torque wrench

B - Operations, Transporting

25

B

81/24

B25B 23/142 (2006.01)

Patent

CA 1157693

ABSTRACT OF THE DISCLOSURE A torque wrench comprises a driving head, a first arm drivingly connected with the driving head, a second arm pivotally coupled to the driving head and a torque limit signalling assembly slidably adjustable in position along one of the arms for selecting a torque limit, the assembly including a non-linear spring having a spring limit at a single fixed compressional force unique to the spring and the spring being arranged to apply force in reaction to pivoted displacement of the arms with respect to each other at the adjusted position of the assembly and to at least the extent of the fixed force; whereby, upon attainment of the spring limit, namely a predetermined fixed force regardless of assembly position, the setting of the torque wrench is solely a function of selected positioning of the assembly along the one arm.

368187

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