Importance

Loading Importance Indicators...

Abstract

A dial torque wrench structure including an elongate rigid metal lever arm with a work-related front end and a manually engageable rear end. An elongate resilient metal deflection beam with front and rear ends is positioned adjacent to and parallel with the arm. The rear end of the beam is fixed to the arm. An elongate work-engaging head has one end fixed to the front end of the beam with the axis of the beam and head at right angle. A force-indicating dial mechanism is carried by the arm rearward of the beam and includes a gear-multiplying dial works with an input lever and an output shaft; a dial card with calibrations thereon; and, an elongate pointer on the shaft directed to the calibration and electrically-grounded to the arm. A conductor part adjacent the card with a contact post intersecting the plane through which the pointer moves. An elongate operating rod with front and rear ends is positioned adjacent the beam in parallel relationship therewith. The front end of the rod is fixed to the beam rearward of the head. An elongate coupling part is connected with and extends rearwardly from the rear end of the beam and engages the lever. Electric sound and light-emitting devices are carried by the arm in grounded relationship therewith. A battery power supply is carried by the arm. One terminal of the battery is connected with the conductor part. The other terminal of the battery is connected with power supply terminsl on said devices.

Loading the Abstract Image...

First Claim