Patent ID: 7757540

Claim:
A device for testing the accuracy of torque wrenches, said device comprising: a. a base unit comprising a first mounting means and a second mounting means, said first and second mounting means suitable for mounting a torque wrench of known calibration, said torque wrench of known calibration comprising a scale and a head, said head modified to receive the male socket of a torque wrench to be tested; b. said base unit having a means for mounting said base unit to a suitable surface; c. said first mounting means comprising a ring mounted substantially perpendicularly to said base unit, said ring positioned and sized to receive the lever arm of said torque wrench of known calibration and said second mounting means comprising a hollow cylinder for receiving the head of the torque wrench of known calibration comprising a center area and a wall, said cylinder mounted to said base unit such that the axis of said cylinder is substantially perpendicular to said base unit and said cylinder has a portion of the wall of said cylinder removed thereby creating a recess in the wall of said cylinder for positioning the lever arm of the torque wrench of known calibration and a groove in the outer wall of said cylinder, said groove being substantially parallel to said base unit, said groove being capable of receiving a ring, said groove positioned such that when said ring is placed in said groove, said ring prevents said torque wrench of known calibration from being removed from said cylinder.