Abstract: A screwdriver handle includes a main body having an end releasably engaged with a screwdriver tip. The main body includes two opposite lateral sides each having a compartment defined therein. Two pivotal covers are pivotally connected to the main body to cover the compartments, respectively. Each pivotal cover includes a holder plate formed on an inner side thereof and having a number of holes for holding screwdriver tips and a number of semi-circle recesses for holding sockets. When a push pin is pushed, two hooks of the pivotal covers are disengaged with two latches of an engaging member that is moved by the push pin such that the pivotal covers pivot outwardly under the action of two elastic members.

Abstract: A hand tool having a pawl with a flange formed on the bottom surface. A bore is formed axially in the pawl. A reversing lever is connected to the pawl. The pawl is received in an opening which has an annular shoulder, the flange on the pawl abutting the annular shoulder.

Abstract: A type of stapler has a handle that permits it to be used like a hammer. The end of the handle is modified to permit it to receive the body of a utility knife. The latter is retained within the handle by a screw that replaces the screw which previously held the halves of the utility knife together. The blade-retracting lever of the utility knife is made accessible on the upper portion of the handle. The blade of the utility knife can be extended and retracted at the end of the tool opposite the staple-dispensing end of the stapler. The handle of the stapler serves as the handle of the utility knife. The tool thus formed is useful to persons who work with sheets of material that must be stapled to an underlying structure then trimmed to the shape of the structure and/or cut free from a roll of sheet material.

Abstract: In a first embodiment, a hexagonal threaded nut includes a pair of horizontal slots about a peripheral portion extending through the nut into a central threaded bore. The slots form jaws which are tightened by pairs of vertical screws about a threaded stud engaged within the central bore. The sides of the slots are forced together to firmly grip the stud. Stress relieving bores at the ends of the slots aid in applying a high torque to the stud and facilitate removal. A standard wrench can be used to rotate the nut and unscrew the stud. Another embodiment utilizes a pair of like threaded nuts positioned on a threaded stud with a fixed spacing therebetween. Screws passing through holes in the two nuts are tightened to compress the spacing and affix the nut to the stud to permit removal.

Abstract: A coupling assembly couples a drive portion of a torque wrench to a bolt ing a head formed with spanner wrench holes in a top thereof and an annular groove therearound. A base engages the annular groove until it is in coaxial alignment with the bolt. Aligning holes in the base are alignable with at least two of the bolt's spanner wrench holes. Each of a plurality of pins sized for sliding engagement with the aligning holes and the spanner wrench holes are fixed in relation to one another by a yoke. The yoke further aligns the pins with the aligning holes. A collar nut engages the base to retain the yoke thereagainst thereby locking the assembly to the head of the bolt. The base is shaped to receive the drive portion of a torque wrench.

Abstract: A variable-length screwdriver includes a shank and a handle. The shank has a handle mounting portion. The handle includes a handle base mounted securely on the handle mounting portion and at least one movable block. The handle base includes a front plug section, and a rear socket section disposed rearwardly of the front plug section and having a rear end face formed with a base socket. The front plug section and the base socket have complementary non-circular cross-sections in a direction transverse to the axis of the shank. The movable block includes a front plug portion, a rear socket portion disposed rearwardly of the front plug portion and having a rear end face formed with a block socket, and a shank hole that extends axially through the front plug portion and the rear socket portion. The front plug portion and the block socket have cross-sections in the direction transverse to the axis of the shank that correspond to the cross-sections of the front plug section and the base socket.

Abstract: An apparatus for supporting and vacuum chucking a work piece have a mounting surface, a surface having a spaced array of apertures defined therein which are operatively connected to a vacuum source. The apparatus also contains a plurality of fixed pods each seated over and surrounding one of a apertures, said pods having an upper surface for supporting a work piece above the mounting surface and further having a hollow interior adapted to receive an accessory therein to transmit the vacuum to the work piece and locking components for fixing the pods to mounting surface.

Abstract: The present invention relates generally to pneumatic ratcheting mechanisms and in particular to a device to aid in shank spindle retainment during ratchet resetting. According to the present invention, at least one recess is provided in the shank spindle of a ratchet head to receive a spring therein. The end of the spring is compressed against an interior surface of the ratchet head to frictionally retain the shank spindle and pawl of the ratchet during the resetting stroke of the ratchet yoke.

Abstract: A ratchet screwdriver has a handle portion, a connection rod connected to the handle portion, a joint sleeve disposed on the connection rod, a circular hole in the joint sleeve, a first volute spring disposed in the circular hole, a chuck sleeve having a hexagonal blind hole and a round hole, and a bit inserted in the hexagonal blind hole. A rotating device has a first end inserted in the circular hole and a second end inserted in the round hole. A compression spring encloses the rotating device. A first C-shaped clamp retainer encloses the joint sleeve. A second C-shaped clamp retainer encloses a first distal portion of the chuck sleeve. A third C-shaped clamp retainer encloses a second distal portion of the chuck sleeve. A second volute spring is disposed in the round hole.

Abstract: A pair of pliers has a driving handle, a fixed handle, a block plate, a U-shaped spring, a first torsion spring, and a second torsion spring. The driving handle couples with the fixed handle pivotally. The first torsion spring and the second torsion spring are connected to the driving handle and the fixed handle. The U-shaped spring is connected to the driving handle and the fixed handle.

Abstract: A tool for supporting a rain gutter during its installation on a fascia board. The tool has a height-adjustable bracket and locking pliers with jaws having wide, flat working faces. Once several such tools are temporarily locked onto the lower edge of the fascia board, not only can they be used to support an elongated gutter but also each of the tools can be moved vertically without disturbing the pliers clamping it to the board, thereby making these tools especially handy for setting the height and slope of the gutter. For holding the adjustable bracket in position, each tool includes a mounting block which is rigidly attached to the back of a fixed jaw of the locking pliers and defines a pair of holes which extend parallel to the plane of the working face of the fixed jaw. The bracket is formed from an elongated rod bent to form an angular structure which terminates in a pair of parallel branches slideably insertable into the holes formed in the block.