Tool for rotating threaded fasteners

Details Tool for rotating threaded fasteners Tool for rotating threaded fasteners

B - Operations, Transporting

25

B

81/41

B25B 13/46 (2006.01)

Patent

CA 1208945

INVENTOR: DOUGLAS IAN GRAHAM TITLE: TOOL FOR ROTATING THREADED FASTENERS ABSTRACT OF THE DISCLOSURE A tool for rotating a threaded fastener comprises a wrench head, a drum mounted therein and rotable by pulling on a ring attached to the free end of steel tape wound therearound to rotate a loose fastener rapidly, the rotary drive being imparted through a free-wheel mechanism and an output shaft on the end of which is carried a conventional socket. Return motion of the drum is effected by a coil spring. Final tightening or initial loosening of the fastener is accomplished by pulling on the handle of a ratchet wrench handle located on the head by a U-pin. Alternatively the head incorporates a wrench handle and is arranged to drive the output shaft through a ratchet mechanism: the free-wheel mechanism comprises an axially-reciprocable, spring-loaded plunger mounted on the drum co- operating with engagement means mounted on the output shaft.

434326

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