Abstract: A tool for lifting an elongate cylindrical tank for use in metal fabrication is provided. The tool includes a loop or material for looping around the elongate cylindrical tank and a cam block having a handle extending therefrom. The cam block carries the loop of material at an off-centered portion of the cam block. Rotation of the handle imparts rotation to the cam block to thereby reduce the slack defined between the loop and the cylindrical tank until the loop is in engagement with the cylindrical tank.

Abstract: A sling for securing a pipe pile to a pipe pile driving apparatus so that the pipe pile is suspended substantially vertical from the pipe pile driving apparatus is provided. The sling includes a sleeve clamp configured to encircle and clamp against the sleeve for conjoint movement therewith. A pipe pile clamp configured to encircle and clamp against the pipe pile for conjoint movement therewith. First and second pawls are pivotally supported by the pipe pile clamp. The pawls are diametrically opposed and confronting each other and being configured to receive the pipe pile between them. A first suspension tether is connected to and extends between the sleeve clamp and the first pawl.

Abstract: A gripping device for gripping sheet material. The gripping device comprises a frame structure and a first gripping member connected thereto. A second gripping member is rotatable mounted to the frame structure. The second gripping member is rotatable between an open position and a closed position for providing a gripping force acting on an object disposed between the first gripping member and the second gripping member. A disengaging mechanism is connected to the second gripping member for moving the second gripping member from the closed position to the open position by providing pushing action acting on the second gripping member.

Abstract: A portable extraction tool facilitates soil stabilization applications that utilize compaction grouting. Compaction grouting involves installing grout injection casing into the ground in fixed-length sections to depths limited by soil compaction or bedrock. The casing is then removed in stages. Between stages, grout is pumped through the casing and into the soil at high pressure. The extraction tool provides the power, gripping strength, stability and operator control required to pull casings from the ground at a desired rate. Pulling power is provided by a pair of hydraulic cylinders. Gripping strength is provided by a progressive chuck mechanism that secures injection casings on upward movements of the cylinders and releases casings on downward movements, without damaging the reusable casings. Stability and strength are provided by a heavy, large-footprint base plate.

Abstract: A coaxial cable connector includes a housing made from an electrically conductive material and a hollow, cylindrical sleeve extending from a first end of the housing. The sleeve is constructed from a material which is deformable onto a coaxial cable. An inner conductor connector projects from the first end of the housing at a point centrally positioned within the hollow, cylindrical sleeve. Insulation is positioned between the housing and the inner conductor connector from the housing, and an outer conductor connector projects from the first end of the housing at a point positioned with the hollow, cylindrical sleeve between the inner conductor connector and the hollow, cylindrical sleeve.

Abstract: A railway wheel lifting device is provided wherein a railway wheel can be readily and positively affixed to a lifting device. Upon such affixing and lifting, the wheel can be moved as necessary with the lifting device. Positive locking mechanisms are provided whereby the rim section of the wheel is held between depending legs of a frame support. When it is desired to release the wheel, an operating cylinder is operatively connected to operating rods which in turn can move cam assemblies out of contact with the wheel to thereby permit the wheel to be released from the lifting device.

Abstract: A tool which can be held and manipulated in one hand, for grasping and pulling steel fish tapes of the type used to pull electrical wires through building walls comprises two identical handle members having flat and parallel front and rear surfaces. Each handle member has a convex inner transverse wall surface, and a notch cut forward from the rear wall surface behind the convex transverse wall surface to a flat longitudinal plane located approximately midway between the front and rear wall surfaces, the notch terminating in an inner transverse wall plane which serves as an anvil plane. Two handle members are pivotably joined by a pivot pin with their bottom longitudinal notch walls in sliding contact, such that a space for receiving a fish tape is provided between each convex inner transverse wall surface of a handle member and the adjacent anvil plane of the other handle member.

Abstract: A tree-lifter mechanism operable by two people standing at opposite ends of the mechanism. Two elongated handles are pivotably connected to the ends of a horizontal support frame that is adapted to span an upright tree. Saddles on the inner ends of the handles exert clamp forces on the tree surfaces when lifting forces are exerted on the outer ends of the elongated handles.

Abstract: According to the invention, the device comprises clamping elements hinged in a housing provided with a cut-out and a control system formed by a group of levers which are connected with a hoisting line. Besides, one of the levers is hinged to the housing and the other levers, to the clamping elements.

Abstract: In accordance with the invention, a lifting handle (10) for lifting and carrying cylindrical, metal, pressurized gas containers (C) comprises a circular metal band (11) with a pair of diametrically opposite cut-outs (12,13) therein, and a pivot mount (14) secured to the band in spanning relationship to each cut-out. A right cylindrical wedging member (20) is pivotally supported on each pivot mount by a pin (22) carried by the pivot mount. The pin extends through a pivot bore (25) offset to one side of the axis of the cylindrical wedging member, whereby rotation of the wedging member about the pivot results in a swinging motion of the wedging member toward and away from the adjacent container. A hand grip or handle (21) is fixed to the wedging member for rotating it about the pivot pin, whereby the wedging member may be brought into and out of engagement with the container to lift and carry the container in a vertical, upright position.

Abstract: A tool for gripping and pulling steel fish tapes of the type used to pull electrical wiring through conduits and passageways in building construction comprises identical jaw pieces and elongated, rearward extending handlebars. The outer half of each jaw piece has a forward extending jaw member having a convex front surface facing a flat anvil plane formed in a cutout rear half section of the opposite jaw piece. The two jaw pieces are joined by a transversely disposed pivot pin such that a forward extending jaw member is pivotable within the cutout section of the opposite jaw piece, forming a pivotable interdigitated structure. The axis of the pivot pin is located eccentrically with respect to the convex front surface of the forward extending jaw member, thereby providing as the handlebars are pivoted into colinear alignment, a decreasing space between the jaw member and the anvil plane for gripping a fish tape inserted therebetween.

Abstract: Apparatus for use in grabbing a refuse container such that the container can be emptied into a refuse collection truck. The grabbing apparatus includes a pair of opposed articulated grabbing arms which have the capability of securely grabbing containers of substantially different sizes without crushing or otherwise damaging those containers.

Abstract: A power tong unit is shown which is operable as a closed head or open head unit. The jaws of the tong unit are rotatable to an extended pipe gripping position from either of opposite directions to make-up or break-out pipe from a single retracted position. An improved jaw for use in the tong unit has contoured gripping surfaces for gripping a wider variety of pipe diameters.

Abstract: An automatic doffing device for ring spinning and/or twisting frames, in particular in machines for producing large packages, which comprises a conveyor arranged to convey the empty tubes into a vertical position corresponding with each of the spindles of the spinning and/or twisting frame, a second conveyor arranged to take away the full cops, and a gripper assembly arranged to effect the mutual transfer of the full cops and empty tubes between the conveyor supporters and the spindles.The doubling of the conveyors and their location at the top of the spinning frame creel in a position overlying the spindles enables automatic doffing to be carried out on spinning and/or twisting frames without any regard for the size of the package (cop diameter and tube length).

Abstract: A conveyor belt tool for repairing a broken conveyor belt which has sliding clamps to match the tool size to the belt width and thickness.

Abstract: A power tong unit which is operable as a closed head or open head unit. The jaws of the tong unit are rotatable to an extended pipe gripping position from either of opposite directions to make-up or break-out pipe from a single retracted position. An improved reversal means controls the direction of rotation of the jaws between the make-up and break-out positions.

Abstract: A self-tightening clamp adapted on closure to suspend a sheet of glass where the clamp includes a stirrup and levers pivotally mounted on the ends of the stirrup with a sheet engaging stud at the end of each lever positioned above the pivot point of the lever. An arm is pivotally mounted at one end to the end of each lever and at its other end is pivotally connected to a suspension link. Guides are associated with the stirrup and the suspension link to assure that the stirrup will move vertically with respect to the suspension link during opening and closing of the clamp. Stops are associated with the stirrup to limit pivotal movement of the levers towards each other and to limit movement of the studs towards each other whereby when the clamp is fully closed, the studs are spaced apart slightly less than the width of the sheet with which they are to engage so as to embed slightly into the sheet.

Abstract: A device for clamping and stopping elongated objects. The device encompasses a passage adapted to receive at least a section of an elongated object to be stopped. Two jaws are located on both sides of this passage and are associated with a mounting arrangement to displace the jaws toward and away from the section for insertion of the elongated object and to clamp and release it. The device is a cable stopper in which the jaws catch and stop a cable led through the passage.