Abstract: An adjustable wrench includes a fixed body having a first end formed with a fixed jaw, a mediate portion formed with a mounting portion and a second end formed with a receiving recess, and a movable body movably mounted on the fixed body and having a first end formed with a movable jaw facing the fixed jaw and a second end formed with a mounting edge slidably mounted on the mounting portion. Thus, the fixed body has a substantially H-shaped mounting portion, and the movable body has a substantially C-shaped mounting edge slidably mounted on the mounting portion of the fixed body, so that the movable body is mounted on the fixed body rigidly and stably.

Abstract: A crescent wrench including a steel ball mounted in a recessed hole in a movable jaw and forced by a spring into engagement with the periphery of a cylindrical control member, which is turned about an axis in an opening in a handle, which has a front end terminating in a fixed jaw, the cylindrical control member having a longitudinal groove adapted for receiving the steel ball for permitting the movable jaw to be released from the constraint of the cylindrical control member, and two longitudinal finger ribs for turning by hand to let the steel ball be moved into the longitudinal groove of the cylindrical control member, or forced out of the longitudinal groove and into engagement with the periphery of the cylindrical control member.

Abstract: A crescent wrench including a steel ball mounted in a hole in a handle and forced by a spring to hold down a movable jaw, a nut mounted in an opening in the handle and turned with the thumb to move a screw rod relative to the movable jaw, permitting the movable jaw to be released from the constraint and moved relative to a fixed jaw at the front end of the handle, or held down at the desired position.

Abstract: This invention is an adjustable wrench design having only two movable elements that uses contact points fixed to a movable jaw to hold the movable jaw in position. The contact points act on a guide member to bind the movable jaw from movement when the wrench is under load. Simple rotation of the movable jaw, once the load is removed, permits ready movement of the jaw to a new position.

Abstract: A adjustable open end type wrench having a solid jaw guide that prevents slippage of the movable jaw and relative movement between the jaws thereby virtually eliminating the tendency of such wrenches to loosen under load. The arrangement of this invention replaces the usual worn gear with a wedge and an arrangement that joins the jaw and the wedge through a tension member that passes through or straddles the jaw guide. The jaw guide extends in a direction generally perpendicular to the gripping surfaces of the jaws. The action of the jaw on the wedge pulls the wedge toward the guide and places the guide in compression. Compression on the guide increases the clamping action of the jaw and the wedge and keeps the jaw in place. A relatively simple wedge arrangement will provide the necessary clamping action. Consequently, this invention provides a simple adjustable wrench design wherein slippage of the wedge and consequent loosing of the wrench is essentially eliminated.