Abstract: A ratchet mechanism of the present disclosure includes a first ratchet gear, a second ratchet gear and a compression coil spring. The compression coil spring applies a force acting toward the first ratchet gear to the second ratchet gear. In the second ratchet gear, a cylindrical boss is formed. The center of gravity of the compression coil spring is arranged on the side of one end portion with respect to the center of the compression coil spring in a longitudinal direction. The compression coil spring is inserted into a boss from the side of the one end portion, and thus the center of gravity of the compression coil spring is arranged on the side of the first ratchet gear with respect to the tip end of the boss.

Abstract: A drive transmitter, which can included in a driving device and an image forming apparatus, includes a drive transmitter including a drive coupling and a driven coupling. The drive coupling is mounted on a drive output shaft to which a driving force is transmitted and includes a drive claw projecting in an axial direction. The driven coupling is mounted on a driven shaft, faces the drive coupling in the axial direction, and includes a driven claw projecting in the axial direction. A height of at least one of the drive claw and the driven claw in the axial direction gradually decreasing from one end to the other end in a rotation direction of at least one of the drive coupling and the driven coupling. The drive claw and the driven claw come into either one of line contact and point contact with each other in the axial direction.

Abstract: A hand-actuated bar clamp apparatus is disclosed which provides a high level of holding power or force on a workpiece. The bar clamp includes first and second jaws that are movably coupled to a bar. The first jaw includes a drive lever that engages the bar and a trigger that drives the drive lever to move the bar relative to the first jaw. A brake mechanism is contained within the first jaw to prevent it from moving in the opposite direction. The second jaw includes a push-button release assembly and a stop mechanism actuated by the push-button release assembly. The stop mechanism frictionally engages the second jaw to the bar when the second jaw is not under load.

Abstract: A pipe wrench is disclosed, the pipe wrench having a uniquely handy control lever and one-way ratchet for very rapid adjustment of wrench position. The wrench also has a pivoting upper jaw that further aids a user in adjusting and tightening the wrench while using only one hand. The wrench may also be used as a hand tool, for instance for clamping an object or workpiece for performing work on the object.

Abstract: A tool for demounting a first and a second bead of a tire mounted on a rim, the tool comprising a handle having a first end for disengaging a first tire bead from a rim and a second opposite end for disengaging a second tire bead from the rim. The first handle end includes a heel extending radially outward from the handle; an elongate arm portion extending radially outward from the heel and forming a forward opening crook; a raised arm portion disposed adjacent the crook; and a tip extending radially outward from the body portion. The opposite second end of the tool handle is configured to disengage a second bead of the tire from the rim and includes a heel extending radially outward from the handle; an elongate lever arm portion extending radially outward from the heel and defining an open crook adjacent the heel; and an elongate raised arm portion adjacent the crook extending outward to a tip portion.

Abstract: Apparatus injects fluid such as sealing and balancing fluid into inflated tires, even two tires on a dual rim wheel, while on a vehicle. It seals to the valve stem so that the valve core can be unscrewed and retracted under pressure, providing an unobstructed fluid injection path before replacing the core without significant pressure loss. Tools for bending tire stems in situ facilitate apparatus installation.

Abstract: A hand-held press is provided for installing fasteners in a sheet of fabric. The press has a frame with a pair of arms forming a C-shaped recess into which the fabric may be inserted. The frame has a handle extending outwardly from a press axis with a lever pivotally attached to the frame adjacent the handle enabling a user to squeeze the handle and lever together. A shaft is oriented along the press axis and slidably cooperates with the frame. An advance sear on the shaft is engaged by the lever to cause the shaft to incrementally advance when the lever is squeezed with the handle. A retract sear cooperates with the shaft and the frame to prevent the shaft from retracting. A pair of die elements attached to the frame and the shaft facilitate the installation of fasteners in a sheet of fabric.

Abstract: A hand-held apparatus for vulcanizing the damaged bead zone of a pneumatic tire. The apparatus includes tongs to engage the bead to be repaired and a hold-up element to engage the diametrically opposite point on the bead. At least one transport and manipulation handle is provided for carrying the apparatus and at least one actuator is included to activate the tongs and the hold-up element.

Abstract: A hand tool consists of a movable jaw, a slide bar wherein the movable jaw is mounted to the slide bar. A support assembly is provided for supporting the slide bar. A stationary jaw is spaced away from the support assembly and is provided with at least a front portion. A one-way drive arrangement is designed having at least a driving lever. A cam having a longitudinally extending handle is pivotally mounted at the support assembly and contacts the driving lever. The cam disengages the driving lever when the one-way drive arrangement is released from the slide bar, and the cam engages the driving lever when the one-way drive arrangement engages the slide bar.

Abstract: A bar clamp having a fixed jaw and a movable jaw which is radially movable over both short and long distances to clamp against a workpiece and is operable using one hand with complete control by the operator at all times. The jaws may either face one another while being mounted on the same side of a handle/grip assembly or face in opposite directions while being mounted on opposite sides of the handle/grip assembly whereby they may be incrementally advanced by the trigger handle/driving lever. The movable jaw may also be a clamp jaw affixed to a handle assembly which moves toward a substrate.

Abstract: A bar clamp having a fixed jas and a movable jaw which is radially movable over both short and long distances to clamp against a workpiece and is operable using one hand with complete control by the operator at all times. The jaws may either face one another while being mounted on the same dise of a handle/grip assembly or face in opposite directions while being mounted on opposite sides of the handle/grip assembly whereby they may be incrementally advanced by the trigger handle/driving lever. Another embodiment uses a substrate comprising a plurality of apertures to receive posts thus acting as a vise type of clamp/wrench.

Abstract: A plug and installation tool for repairing punctures in vehicle tires mounted on motor vehicles. The plug is a generally cylindrical part made of a rubber material with enlarged end portions and an interconnecting cylindrical shank portion. One of the enlarged end portions is a cylindrical head portion and has a circumferential groove for engaging the insertion tool. The other end portion is a spherical tail portion. In the first aspect of the invention an assembly comprised of the plug and a rigid core disposed on the axis of the plug is mounted on the installation tool, elongated by the tool and inserted in a puncture. In the second aspect of the invention, the rigid core is installed in the plug after the plug is inserted into the puncture. When the plug is installed in a puncture it has a generally "hourglass" shape with sealing surfaces in the puncture and at the inner and outer ends of the puncture.

Abstract: A hand tool or clamp, which is operable with one hand, includes a fixed jaw and a movable jaw. The movable jaw connects at one end to a movable slide bar. One way drive means, by operation of a trigger handle, releasably engages the slide bar with advances the movable jaw toward the fixed jaw or away from the fixed jaw. Disengagement of the one way drive means will allow for manual return movement of the movable jaw.

Abstract: There is disclosed in the specification a tire repair device and kit for inserting plugging material typically in the form of rubber coated twisted strands into a tire puncture. The device and kit is provided with one or more interchangeable tools such as a strand inserting needle, an awl, a knife, and screwdriver, said tools being interchangeably joinable with the handle of said device. In operation the awl is first joined with said handle and used to enlarge the puncture, if necessary. The inserting needle tool is then joined to the handle. The plug material is threaded into the open eye of the needle and inserted into the puncture. The inserting motion is limited by a stop bushing captive on said needle tool so that the ends of the strands are not drawn into the puncture. The stop also limits the withdrawal of the needle.

Abstract: A bicycle tube repair device having a spherical rubber member from which strands of rubber bands extend, the spherical member being adapted to be forced through a rupture in a tube to repair punctures, particularly those too large to be repaired by tube repair fluid, thus avoiding the necessity of replacing the tube.

Abstract: PCT No. PCT/US79/00666 Sec. 371 Date Aug. 30, 1979 Sec. 102(e) Date Aug. 30, 1979 PCT Filed Aug. 30, 1979 PCT Pub. No. WO81/00538 PCT Pub. Date Mar. 5, 1981This invention relates to a buffing tool (10, 10a) and method for preparing internal surface portions (14) of a tire (13) for application of a sealing patch thereto. A puncture (12) formed in a beadless tire (13), having a tread formed integrally therewith, is difficult to prepare for patching by use of conventional buffing tools and methods due to the mass of tightly wrapped reinforcing wires and multiple plies incorporated in the tire.

Abstract: A technique for controlling the pressure in a closed, sealed article, such as a tennis ball or the like. A needle having a sharp, forward, outer end adapted to puncture the article includes a passage in its rear end which terminates in a flow orifice which opens through the side of the needle, between the ends of the needle. Means are provided at the outer end of the needle to carry a resilient sealing plug. The needle may be attached to a syringe or other appropriate means for injecting or withdrawing air from the article. The article is punctured by the plug-carrying needle which is inserted to expose the flow orifice interiorly of the article and to locate the plug within the article. Air is introduced or withdrawn from the article as desired. When the desired pressure level is reached, the needle is withdrawn.