Oscillating drive apparatus for working tool and working apparat

Details Oscillating drive apparatus for working tool and working apparat Oscillating drive apparatus for working tool and working apparat

1989-02-24

1989-12-12

Smith, James G.

Tools

Wrench, screwdriver, or driver therefor

Machine

81 52, 81 5716, 81 5734, 173164, B28B 1300

Patent

active

048859630

ABSTRACT:
An oscillating drive apparatus for working tools which enables a large-diameter pipe to be readily and efficiently turned, cut or threaded without the need for a large working area. The apparatus comprises a casing body, a vise for holding a pipe, the vise being provided at the forward end of the casing body, a motor provided inside the casing body, a speed reducing gear train provided inside the casing body, and an oscillating arm for driving a working tool, the oscillating arm being provided on one side of the casing body so as to be oscillated by the final output shaft of the speed reducing gear train through an oscillating drive mechanism. Also disclosed is a working apparatus for pipes wherein a shaft is provided on the distal end portion of the oscillating arm of the oscillating drive apparatus in such a manner as to extend parallel to a pipe held by the vise and a wrench or cutter member is attached to the shaft.

REFERENCES:
patent: 443312 (1890-12-01), Bode
patent: 1401405 (1921-12-01), Hole
patent: 1476341 (1923-12-01), Le Bus et al.
patent: 1634602 (1927-07-01), Wilson
patent: 2450967 (1948-10-01), Keiser
patent: 3752061 (1973-08-01), Ballard
patent: 3880024 (1975-04-01), Asada
patent: 4345493 (1982-08-01), Rassieur
patent: 4732061 (1988-03-01), Dinsdale

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