Wrench for effecting screw connections of inaccessible parts of

Details Wrench for effecting screw connections of inaccessible parts of Wrench for effecting screw connections of inaccessible parts of

1985-01-10

1987-02-10

Parker, Roscoe V.

Tools

Wrench, screwdriver, or driver therefor

Machine

81 52, B25B 1348

Patent

active

046415548

ABSTRACT:
A wrench for inaccessible screw connections of motor vehicle linkages particularly for screwing and unscrewing the first part such as a ball pivot socket having its associated steering rod in respect to a second part such as a threaded pin of a pitman arm is employed in conjunction with an arrangement where both parts have diametrically opposite parallel wrench flats and one part has a stop surface for locating the wrench. The wrench includes a tube of a size to engage over the parts and has internal stop engageable with the predefined stop surface of the one part so as to ensure orientation of the tube relative to the two parts. The tube carries a ring shaped wrench head portion with a first diametrically extending recess into which a first wrench is engageable. The wrench has spaced apart wrench jaws which are engageable with the flats of the part having the stop surface. In addition, the tube carries an end ring part which is rotatable in respect to the remainder of the tube and has a second diametrically extending recess into which a second wrench extends which has wrench jaws engageable with the flats of the other part. The arrangement includes rods for holding one of the end ring part and the tubes while the other is rotated to effect a threading of the two parts either together or apart in accordance with the direction of rotation.

REFERENCES:
patent: 1208449 (1916-12-01), Attwasser
patent: 2375270 (1945-05-01), Yonkers
patent: 3277749 (1966-10-01), Osburn et al.

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