Importance

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Abstract

A manually engagable, portable and disposable tester for torque limiting and torque indicating screwdrivers comprising a horizontal hand-held plate with top and bottom surfaces, front and rear ends, and opposite sides, an elongate deflection beam with front and rear ends in spaced parallel relationship above the plate, a vertical mounting pin at the front end of the beam engaged in the plate for free rotation and against horizontal and vertical displacement, a driver part with a vertical driving opening to establish rotary driving engagement with a screwdriver and fixed to and projecting rearwardly from the rear end of the beam, a pair of laterally spaced vertical reaction posts projecting up from the plate and in sliding bearing engagement with opposite sides of the beam at the rear end thereof, an elongate horizontal pointer with a rear end fixed to the driver and projecting forward in vertical spaced relationship with the beam and having a front end terminating forward of the beam, and a laterally extending calibrated scale on the top of the plate forward of the beam and below the forward end of the pointer.

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First Claim