B - Operations – Transporting – 25 – B
Patent
B - Operations, Transporting
25
B
81/34
B25B 13/02 (2006.01) B25B 13/12 (2006.01) B25B 13/14 (2006.01) B25B 13/28 (2006.01)
Patent
CA 1204006
ADJUSTABLE WRENCH ABSTRACT A continuously adjustable wrench suitable for use with a range of nut or bolt head sizes and having a handle which is offset or angularly disposed with respect to the wrench head. The wrench provides contact with the nut or bolthead at three spaced, opposing points such that the rotational torque imparted thereto is optimized and the strength required for the wrench head for a given torque is reduced. In one embodiment, the wrench head is pivotally disposed with respect to the handle either about a single pivot or a double pivot to drive a camming contact surface on the handle into contact with a cofronting surface of the nut or bolthead. In another embodiment, a contact surface is adjustable longitudinally along the handle to be positioned adjacent the nut or bolthead. In a further embodiment, a wrench head is disposed at each end of the handle and an adjustment screw is provided on the handle for sliding the handle with respect to the wrench heads fur continuously adjusting both wrench heads simultaneously. The wrench heads of this embodiment may be either pivotally or non-pivotally disposed with respect to the handle. - 1 -
415852
Encor Limited
R. William Wray & Associates
LandOfFree
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