Measuring and testing – Testing of apparatus
Patent
1991-07-30
1992-01-28
Ruehl, Charles A.
Measuring and testing
Testing of apparatus
73847, G01N 322
Patent
active
050834711
ABSTRACT:
A method and apparatus for capturing the torque produced by a torsional drive system for testing the rigidity and strength of the components of the torsional drive. A lock bar is connected by a coupling to the torsional output shaft of the torsional drive system such that torque from the output shaft is transferred to the lock bar in such a manner as to transmit no harmful thrust, bending or other random forces to the drive coupling or reducer. The lock bar is rigidly connected to the base of the torsional drive system but a flexible coupling can be used which permits parallel offset and/or angular misalignment between the output shaft and the lock bar. The lock bar transfers the torque to the base of the torsional drive system thereby capturing the torque within the drive system. The lock bar is provided with a passageway which allows access to the key and keyways of the output shaft and of the coupling for checking alignment of the output shaft and the lock bar, and for checking the fit of the key and the coupling while the output shaft is under any desired torsional load.
REFERENCES:
patent: 3740999 (1973-06-01), Whitehouse
patent: 4509377 (1985-04-01), Mentzell et al.
Letter dated Jun. 2, 1988 from Whiting Corporation to Midwest Foundation Corporation.
Letter dated Jun. 29, 1988 from Whiting Corporation to J. S. Alberici Corporation.
Undated handwritten letter to Mr. Rost from J. B. Ehret with 2 sketches.
Whiting Corporation Drawing No. U-93190 dated Jan. 11, 1989.
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