Tightening fixture with built-in torque readout device

Details Tightening fixture with built-in torque readout device Tightening fixture with built-in torque readout device

1990-07-06

1992-05-05

Ruehl, Charles A.

Measuring and testing

Dynamometers

Responsive to torque

7386208, 29721, G01L 524

Patent

active

051097060

ABSTRACT:
A tightening fixture for tightening a lock nut on a chuck including a torque readout device for measuring the torque applied to tighten the lock nut. The tightening fixture includes a stationary support block having a torque transmitting collar rotatively mounted therein. The torque transmitting collar is designed to receive and hold the chuck so that the chuck is held nonrotatable with respect to the collar. When torque is applied to tighten the lock nut on the chuck, the chuck and collar rotate as a unit. A torque indicator is mounted in the stationary block and is responsive to the rotation of the torque transmitting collar to provide an indication of the torque applied to tighten the lock nut.

REFERENCES:
patent: 2300288 (1942-10-01), Hullhorst
patent: 3044322 (1962-07-01), George
patent: 3220287 (1965-11-01), Alvey
patent: 3232101 (1966-02-01), Siegler
patent: 3448988 (1969-06-01), Athansiou
patent: 4304510 (1981-12-01), Machida
Bill Tools Catalogue, p. 88.

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