Abstract: A bleacher seat cap installation tool is provided that has a first guide surface that slides along an edge of the seat board of the bleacher seat to be retrofit, and a second guide surface that guides a free end of a bleacher seat cap into position. The tool enables a single installer to install a bleacher seat cap quickly and easily, while avoiding injury or marring of the exterior surface of the bleacher seat cap.

Abstract: A tool for compressing a torsional spring for clamping a heat sink. The tool includes a base having an aperture extending therein for receiving the torsional spring and the heat sink. A first set of opposing jaws is pivotally coupled with the base for compressing the torsional spring in a vertical direction. A second set of opposing jaws is pivotally coupled with the base for compressing the torsional spring in a horizontal direction.

Abstract: A clamp apparatus having a locking body with a tapered lower cam surface, and a stationary mounting member on which the locking body is rotatably mounted. The cam surface is substantially perpendicular to the rotational axis of the locking body to provide a large cam surface area for secure locking and holding of workpieces. A cutout portion on the locking body defines an open position wherein a workpiece can be positioned adjacent to or removed from the clamp apparatus. When the locking body is rotated into a locking position, the tapered cam surface engages and clamps the workpiece beneath the locking body to secure the workpiece in place. A stop or stops on the mounting member prevents the locking body from rotatably moving into unwanted positions. A resilient O-ring positioned between the mounting member and locking body provides traction therebetween.

Abstract: By inserting a male screw for fixing a ratchet claw into a nut placed on an insert core and the like to prevent rotation, it is possible to eliminate additional screw processing on the insert core, to increase magnetic resistance between a magnet and the insert core provided with the former, to concentrate irradiation of magnetic flux from the second magnet pole toward outside and to fix the magnet and the second magnet pole onto the insert core with screws. Further, by tapering an axial hole of the rotor, it is possible to easily and accurately attach the insert core or the rotor to a crankshaft. Furthermore, by inserting a removal parts of a removal tool into a perforation hole of the rotor, it is possible to realize quick and simple removal of the rotor from the crankshaft.

Abstract: A door or window floor clamp provides opposing compression legs pivotally mounted onto opposing base legs and supported in upright attitudes by opposing telescoping braces. The braces are adjustable and extensible with latches provided for positioning the braces on the base legs and for locking the compression legs in place. The clamp folds so that the base legs, the compression legs and the braces are all in parallel adjacency for compact handling and storing.

Abstract: This invention relates to a table operating device for a machine tool having a table on which a work is mounted and a table lifting means for supporting the table and for vertically moving the table. The table operating device according to this invention has a vertically extended clamping member disposed underneath the table, a first reference plane provided on a side to the clamping member for positioning the table in a first direction on a horizontal plane; a second reference plane provided on a side to the clamping member for positioning the table in a second direction on the horizontal plane; a first pressing member for pressing the clamping member to the first reference plane; and a second pressing member for pressing the clamping member to the second reference plane.

Abstract: A preferred clamping apparatus includes an hydraulic pull cylinder having a piston rod connected to the shaft of a wedge-shaped clamp operator received in a complementally shaped opening defined in a clamp block having a shiftable jaw. In operation, retraction of the piston rod pulls the operator toward the base of the block in order to shift the jaw to a clamping position to hold a workpiece. In preferred forms, the clamping apparatus is included as part of a fixture and operable to clamp a workpiece to the fixture.

Abstract: A tool having a stationary base mount, a moveable base mount, and clamps for use in coupling pipes. The tool includes a gear device for moving the moveable base mount with respect to the stationary base mount. A first clamp device is positioned on the stationary base mount for clamping a first pipe. A second clamp device is positioned on the moveable base mount for clamping a second pipe. After a slip connector is positioned between the first and second pipes, the gear device is actuated to cause the moveable base mount to move toward the stationary base mount. This results in the slip connector being inserted in the first and second pipes to couple the pipes.

Abstract: An accessory (10) for a wrench socket (12) is disclosed including a generally cylindrical magnet (32) secured to a generally cylindrical, nonmagnetic, compressible disk (26) which snugly fits within the well (14) and magnetically insulates the magnet (32) from the socket (12). Specifically, the magnet (32) is received in a frustoconical recess (46) formed in the disk (26) while its temperature is elevated allowing the disk material to flex and stretch during the insertion of the magnet (32) into the recess (46). The magnet (32) is nickel-plated (43) and its corners are beveled (41) for ease of insertion of the magnet (32) into the recess (46). Air is received within a pocket (51) extending from the recess (46) and/or vented to the atmosphere through a vent hole (53) as the magnet (32) is forced into the recess (46).

Abstract: A hydrostatic holding device has a first actuator constructed to increase the pressure of a hydraulic fluid within a pressure chamber to urge a metal sleeve into firm engagement with a workpiece received in a hydrostatic sleeve and a second actuator constructed to relieve the high pressure within the system to permit the workpiece to be removed from the sleeve when desired. Preferably, the first and second actuators are separate cylinders each having pistons displaceable by separate actuating rods to conveniently achieve the increased pressure needed to firmly hold the workpiece and the bleeding or relieving of the pressure so that the workpiece can be removed from a holder. A check valve downstream of the first actuator prevents reverse flow of the hydraulic fluid from downstream of the check valve back into the first actuator and thereby permits the increased pressure to be maintained independently of the first actuator.

Abstract: To support a shell case having a different shape by support mechanisms in a shell lock seaming machine, the support mechanisms are disposed on both the sides of the opening edges of the shell case and a plurality of support members are provided with each of the support mechanisms, the plurality of support members being locked to the inner surface of both the opening edges of the shell case, wherein the plurality of support members can advance and retreat in the axial direction of the shell case as well as at least one of the plurality of support members is movable in a direction perpendicular to the axial center of the shell case.

Abstract: A three piece tool for reassembly and disassembly of poppet valve spring assemblies which are set inside bores in engines. The tool includes a tubular part that closely fits the engine bore, slides down and around the spring assembly, and contacts the top of a washer of the spring assembly. Compression, using a C-clamp or like tool, forces the tubular member, and the washer, downward and allows the keepers to be removed from the valve stem. Release of the compression allows the spring assembly to be disassembled. Reassembly is accomplished using the tubular member with a liner and a plunger. With the keepers, springs and washer positioned, the tubular part, with a liner and plunger, is inserted into the bore and the tubular member pushed downward to compress the springs. The plunger serves to move the keepers into their operational position so that release of the force on the tube relocks the spring assembly into its operational position.

Abstract: A fine grinding device for the continuous reprofiling in situ of the surface of the head of at least one rail of a railway track includes at least one fine grinding unit per rail. Each one of these fine grinding units carries a beam (1) on which are mounted rotatably at least two pulleys (4, 8) situated slightly above the rail (3) and around which is arranged an endless abrasive brand (5) working in the longitudinal direction of the rail. Between these two pulleys (4) there is a biasing shoe (12) that contacts the rail over a rectangular surface and that is subjected to the action of a jack supported by the beam (1) and acting on the shoe (12) with a determined force for applying the abrasive band (5) against the head of the rail (3) without any vibration. At least one of the pulleys (4) is driven in rotation by a motor to set the abrasive band (5) into motion.

Abstract: A workpiece holding assembly includes a base member which has a first support portion extending therefrom at a first position, a second support portion extending therefrom at a second position, a third support portion extending therefrom at a third position, and a fourth support portion extending therefrom at a fourth position. A first workpiece engaging member extends between the first support portion and the second support portion and is adapted for at least partial rotational movement. A second workpiece engaging member extends between the third support portion and the fourth support portion and is adapted for at least partial rotational movement. Each workpiece engaging member may include an outer surface having at least one substantially planar surface portion and at least one curved surface portion. The second workpiece engaging member may run substantially parallel to the first workpiece engaging member.

Abstract: A work-holding device is provided for clamping a workpiece of irregular shape. The work-holding device has a clamping jaw. The clamping jaw comprises a multitude of clamping pins (3). The clamping pins (3) are circular in cross section, aligned in parallel and laterally directly adjacent to one another, and separately movable in their direction of main extension. The clamping jaw also comprises a frame laterally encompassing the clamping pins (3). The clamping jaw further comprises an open pressure chamber (17) provided at the backside of said clamping pins (3) turned away from said workpiece. Pressure medium (16) is supplied to the pressure char, parts of which emerge from said pressure chamber (17) to said workpiece through clearances between said clamping pins (3); and the pressure medium (16) in the pressure chamber impinges said clamping pins (3) in direction towards the workpiece.

Abstract: A cutting board assembly comprises a rigid base member and a selectively removable surface layer. Both the base member and the surface layer are composed of a material suited for food service. The base has a flat level upper surface. The selectively removable skin layer is received over the base to provide a replaceable cutting surface thereto. The surface includes a downwardly extending skirt to provide a snug fit about the perimeter of the base. A curb extends upwardly from the cutting surface adjacent an outer edge thereof to provide a trap for inhibiting food or juices from sliding off the cutting surface. At least a portion of the cutting surface outer edge is free of the curb to enable the sliding transfer of food to and from the surface.

Abstract: A fixture for retaining mold pin workpieces for separate cut-off and precision grinding operations, facilitating the efficient machining of quantities of mold pins to close tolerances, when employed in combination with a machine such as a manual surface grinder, or other machining tool. The fixture includes a base pate, with a vertically upstanding cylindrical post secured to the base plate. A head assembly is slidably mounted on the post for both vertical position adjustment and rotational (angular) adjustment. A vertically-extending graticule line on the post and a graduated degree scale on the head assembly cooperate to facilitate rotational adjustment of the head assembly to particular angles. In addition, the base plate has primary side and secondary positioning reference edges oriented at precise angles. The head assembly has a pin-clamping portion extending horizontally from the post to a distal end generally along a head assembly axis perpendicular to the post.

Abstract: A tool for extracting headed nails includes pliers having a handle, a locking lever and first and second pivotally connected jaws each with distal ends, the pliers having an open position wherein the handle and locking lever are disposed apart from each other and the distal ends of the jaws are disposed apart from each other and having a grasping position wherein the handle and the locking lever are disposed toward each other and the distal ends of the jaws are disposed adjacent each other; a slide hammer mechanism including a rod having first and second ends and a hammer member mounted to slide along the rod; and wherein the rod is connected at the first end with the pliers and has a stop at the second end; and, wherein the jaws each define a face at their distal ends and the faces each define a centrally disposed semi-circular cut-out for receiving the shank of a nail therein.

Abstract: A tool used in the construction of frames includes multiple clamps that are used to secure frame members at precise angles and orientations for welding. The tool includes a vertical support post upon which is mounted a table. First and second clamps are pivotably mounted to the table and allow two frame members to be secured in contact with one another and parallel to the table at a precise angle. A column extends upwardly from the table. At the upper end of this column is a support arm which is held parallel to the table by the column. A third clamp is mounted on the distal end of this support arm. This third clamp can be used to position a vertical or diagonal member in contact with the frame members held by the first and second clamps for welding. Additionally, the tool includes first and second attachments which can be used to secure vertical or diagonal members to the frame.

Abstract: An apparatus for making a length of insulated electrical cable in a metal tubing by providing a vertically extending pipe, a metal tubing positioned in the pipe, an enlarged extension tube and a crossover connected to the top of the tubing. A piston pig connected to an insulated wire is lowered by gravity and fluid pressure through the extension tube, crossover and metal tubing.