Abstract: A first and second attachment system for attachment of a training rig to an upper edge of an ISO shipping container. Both systems include inside corner brackets that fit inside corner fittings of the container. The first attachment system further includes first attachment means with outside corner brackets which are to be attached to the inside corner brackets, second attachment means for attachment to a frame of the container and longitudinal beams for arrangement between the first and second attachment means or two second attachment means. The second attachment system includes a beam with vertical end plates and two outside corner brackets, wherein the end plates and the two outside corner brackets are to be attached to the inside corner brackets. These systems are attachable to any standard ISO shipping container and do not affect the container at all which means that no specially designed container must be used.

Abstract: A bracket for extensibly mounting a medical or surgical apparatus, and more particularly a humidification apparatus, to a support structure. The bracket comprises a base member securable to the support structure, a mounting member to which the humidification apparatus may be secured, and an extension mechanism moveably engaging the base member and the mounting member. The mounting member is reversibly extensible from a retracted position substantially proximate the base member to an extended position projecting beyond the base member. Also disclosed are a humidification apparatus and a support stand each comprising the extensible bracket.

Abstract: A roll-out wheel has a base housing secured to a working surface. A rolling arm having a lever end and a working end pivots about a hinge point in the housing. A hand wheel and a pipe chuck are rotatably attached to the working end by a rolling sleeve. A pipe to be welded is securable on the pipe chuck and rotatable in unison with the hand wheel. Rotation of the hand wheel permits welding about the perimeter of the pipe without moving the welding tool. A clamping mechanism can permit or prevent rotation of the hand wheel. A pivoting mechanism can raise or lower the working end.

Abstract: There is disclosed a clamping device mountable to a bench top for setting an edge piece to an edge thereof such that the edge piece projects from the bench top at a predetermined angle, with interengaging surfaces of the edge piece and edge being formed with mating mitres whereby a mitre joint is formed between the edge piece and the bench top, the clamping device comprising a body, a first clamping means supported from the body for clamping the device to the bench top, a second clamping means supported from the body for applying clamping pressure to the mitre joint, and first and second locators carried by the body and engageable with the edge piece and bench top respectively to maintain them in the required configuration during clamping. There is also disclosed a related method of attaching an edge piece to an edge of a bench top.

Abstract: A handheld jig for placement on a radiator and associated method to repair broken welds of tabs of a radiator mounting cradle used to hold a radiator of a vehicle such as a HMMVE where the tabs may be pressed against angled surfaces of the radiator, the jig having a base, a first arm extending from the base, a second arm extending from the base, and a third arm extending from the base, the first arm, second arm and third arm each capable of holding an adjustable pin to selectively contact a tab of the cradle to press the respective contacted tabs against respective angled surfaces of the radiator.

Abstract: A corner clamping apparatus capable of adjustably clamping two joined, mitered corner pieces to form a 90-degree corner with a single clamp. The clamping apparatus includes three rigid L-shaped supports, adjustably mounted relative to one another to accommodate differently sized corner pieces and/or variations in the corner pieces or their mitered edges. Four adjustable clamping feet retained in the rigid L serve to adjust the corner pieces to produce an exact miter joint or seam, and to hold the adjusted corner pieces until they can be more permanently joined.

Abstract: The present invention relates to a machine tool for machining of workpieces, having a workpiece support for mounting the workpiece, a tool holder, which can be moved at least along one axis, for holding a tool for machining the workpiece, and workpiece holding units for fixing the workpiece during the machining, the workpiece holding units being arranged outside the workpiece support surface of the workpiece support, which is covered by the workpiece in the mounted state, and each having a holding element for fixing the workpiece. In order that also workpieces of greater diameter can be machined, the machine tool otherwise being of the same dimensions, it is provided according to the invention that the holding elements can each be moved, substantially parallel to the workpiece support surface, in the direction of the workpiece, in particular in the direction of a central workpiece axis, which runs perpendicular to the workpiece support surface, for the purpose of centering and fixing the workpiece.

Abstract: A bar clamp with adjustable jaw pads for clamping and for spreading work pieces includes a main housing having a bar opening for extending a bar therethrough, and a bar advancing mechanism with a bar gripping member in proximity to the bar opening. There is an elongated slide bar extending through the bar opening, and a handle and trigger connected to the main housing wherein the trigger is connected to the bar advancing mechanism such that activation of the trigger causes advancement of the bar through the main housing. It also includes a first jaw base connected to the main housing and extending upwardly therefrom. A first jaw pad is rotatably connected to the first jaw base, so as to be rotatable in at least two planes, to adjust angles between the elongated slide bar and the first jaw pad. A separate, second jaw base is connected to the elongated slide bar. There is a second jaw pad rotatably connected to the second jaw base, so as to adjust an angle between the elongated slide bar and the second jaw pad.

Abstract: A clamping apparatus for attaching work pieces to be machined to the work table of a machine tool in a precisely defined position comprises at least one clamping rail to be attached to the work table of the machine, as well as at least one work piece holder. The clamping rail is provided with an elongate protruding portion, the front face thereof constituting a stop surface and which defines a recess between itself and the work table of the machine tool. The elongate protruding portion may be provided with threaded bores for receiving clamping screws. Each work piece holder includes a clamping portion which can be inserted into the recess and clamped therein by means of the clamping screws. The clamping rail includes a flat bottom surface resting on the surface of the work table of the machine tool and running perpendicular to the aforementioned front face of the elongate protruding portion.

Abstract: An apparatus for use in coupling a pair of bar clamps comprises a coupling member for connecting a first clamp to a second clamp is provided. The coupling member includes a first member and a second member having an end pivotally attached to the first member. The coupling member further includes a connection member for attaching an end of each clamp to the coupling member. In another aspect, a connection member for coupling a pair of bar clamps is provided. In another aspect, a method of connecting a first bar clamp to a second bar clamp is provided.

Abstract: A system of tools and connector assemblies can be erected in numerous arrangements and configurations, in positive, selected interrelationships, for the mounting and support of a workpiece or the like. Engagement portions on the tools are clamped by the clamping blocks comprising a connector assembly; the tools may be C-clamps, bar-clamps, pipe-clamps, coupling devices, brackets, standoffs, and like implements.

Abstract: A clamp comprises at least two opposed clamping surfaces and at least two opposed second clamping surfaces disposed perpendicularly to them, at least two opposed pressure-bearing surfaces spaced apart and located on longitudinal axes of the first clamping surfaces and disposed at an angle from the first clamping surfaces, and two rigid pressure-bearing points, one of the pressure-bearing points located to align when in use adjacent to one of the pressure-bearing surfaces and the other pressure-bearing point located to align when in use adjacent to the other pressure-bearing surface. A device or manner of imparting a longitudinal force such that the pressure-bearing surfaces are urged against the pressure-bearing points is also included. As the angled pressure-bearing surfaces slide over the pressure-bearing points in response to the longitudinal force, that longitudinal force is translated into a clamping force that urges the opposed clamping surfaces towards each other.

Abstract: A mechanism is described for incorporating into a clamping workbench of the type comprising a pair of main clamping jaws (234, 237) and a supplementary clamping jaw (230) which is movable as a consequence of relative movement of the main jaws to engage and clamp a workpiece lying across the main jaws. The clamping movement of the supplementary jaw (230) is generally perpendicular to that of the main jaws. The invention concerns a supplementary jaw (230) having a single actuating arm (238), one end of which is adapted to be pivotally received in an opening (246) in one of the main jaws (237), and the other end of which is slidably connected to the supplementary jaw (230) and held captive therein by pin means (304, 306) extending above and below the captive end of the arm (238).

Abstract: An apparatus and method for determining a bitting pattern of a key comprising a housing used for optically outlining at least the profile of the blade of the key so as to form an image. The image is digitized and information created therefrom, including information about the width of the blade of the key at a plurality of selected longitudinal positions along the length to include the width of the blade at the location of at least one cut of the bitting pattern. The information about the bitting pattern of the key digitized can then be used to cut the bitting patten into a key blank. Alternatively, the information can be compared to stored information and the detected width of the blade adjusted at a location of at least one cut to be one of a plurality of predetermined widths from the manufacturer, thereby creating a regenerated bitting pattern of the key.

Abstract: A method of holding a part (5, 16) in position in an assembly station (1), in which the part (5) is put into a determined position in the frame of reference of the assembly station (1) by means of a handling robot (7), at least one clamp (2, 3, 4) is closed onto a portion (5a, 5b) secured to the part, the clamp being mounted to slide freely in a guide (12) of the assembly station (1) extending parallel to its own clamping direction, and the clamp is blocked against sliding when it is clamped onto the part.

Abstract: A cabinetmaking system having a framing table including opposed fences on each side and a series of adjustably positionable clamps. One of the fences includes a removable central section for maneuvering a cutting tool therethrough. The clamps each include an eccentric cam rotating about a single bolt for securing workpieces along with pressure blocks for edge routing, making glue cuts, forming “biscuit cuts” in the ends and sides for tongue and groove joints, cutting decorative bevels, etc. The system further includes a panel table for clamping cabinet side and rear panels thereto for routing edge and surface grooves for joining the panel together.

Abstract: In a finishing apparatus, a plurality of works are retained at distances from each other in a direction of an X-axis. A single spindle is disposed on a table movable in the direction of the X-axis, the spindle has an axis parallel to an axis of each of bores to be finished, and is capable of being advanced and retracted axially. A measuring device is provided that measures an inside diameter of each finished bore and which is advanced and retracted independently from the spindle in a direction along the axis of each finished bore. A combination tool is mounted at a tip end of the spindle and finishes an inner surface of any of the bores to be finished, even if the position of insertion of the combination tool into each of the bores is changed.

Abstract: The invention is a clamping device attaching to a bar clamp or pipe clamp which, instead of providing a flat surface for singular longitudinal compression, the device allows for angular clamping, the device having a rotating base and clamping portion allowing for perpendicular or angular force application in two angular vector directions.

Abstract: Supplementary jaw means is described for fitting to a clamping workbench transversely to the main jaws thereof at a position spaced from stop means at the other end of the main jaws, whereby operation of the drive means which moves the main jaws towards or away from each other will increase the distance between the supplementary jaw means and the stop means when operated in one sense, and will decrease the distance therebetween when operated in the other sense. A clamping workbench may be fitted with one supplementary clamping jaw means and a fixed stop for clamping a workpiece therebetween above the main clamping jaws.

Abstract: The present invention provides a C-clamp plier with a support extension arm for grasping and longitudinally supporting one or more objects. The plier of the invention generally comprises a handle assembly, a C-shaped clamping section, and an extension arm disposed above one of the jaws of the C-shaped clamping section and adjustably extending longitudinally to an outer-point. A pressure post is provided at an outer end of the extension arm and a counter pressure post is provided within the jaws of the C-shaped clamping section to provide opposed counteracting forces along the longitude of one or more objects grasped by the plier to secure the object(s) stably within the grasp of the plier.

Abstract: A partition clamping device for holding partitions, such as cubical partition walls, in place with one another when assembling the partitions during installation. The partition clamping device includes first and second clamp members each comprising a cross brace and a spaced apart first and second side braces coupled to the cross brace. A threaded rod is threadingly extended through a first of the side braces towards the second side brace. A plate is coupled to an inner end of the threaded rod. The cross braces of the clamp members each have a bore therethrough through which an elongate pole is extended.

Abstract: A dual clamping adapter for securing a vehicle body undercarriage having both horizontal pinchwelds and vertical jack tabs to a vehicle repairing device includes a generally L-shaped clamp bracket having a generally upright upper leg and a generally horizontal lower leg, a first pair of clamps for releasably clamping a horizontal pinchweld of a vehicle body undercarriage and a second pair of clamps for releasing clamping a vertical jack tab of a vehicle body undercarriage. The first and second clamping plates are adjustably mounted on the upper and lower leg of the clamp bracket, respectively and the clamp bracket is height adjustable. A vehicle repairing device utilizing the aforementioned dual clamping adapter is also disclosed.

Abstract: Apparatus for supporting a selected number of workpieces at a machining center, each workpiece support having a sleeve within which is reciprocably accommodated a workpiece bearing member cooperable with the sleeve to clamp and unclamp a workpiece in a selected position for machining. The workpiece may be clamped axially or transversely of the sleeve and, when clamped transversely, in a position selectively normal or inclined to the axis of reciprocation.

Abstract: An article assembly an alignment machine includes a table comprising a base frame and a work surface mounted thereon. A jig system includes X-axis and Y-axis jig subsystems each including clamps slidable on the work surface. The jig subsystems are actuated by pneumatic piston-and-cylinder units. An article forming system includes a gang drill mounted on the base frame below the work surface and adapted for raising and lowering between engage and disengage positions.

Abstract: The present invention provides precision machine vise equipment for use in the NC machining of workpieces which improves the efficiency of the operation by making it possible to insert, secure, and machine some plural number of workpieces, such as two, or more preferably, four, in each cycle of machine operation, while causing each of said workpieces to be precisely located with respect to each of three mutually perpendicular datum planes, and without the necessity of having the machinist or machine operator conduct a positioning or squaring operation. This is done by providing, in accordance with the present invention, in the first place, a two-place precision machine vise of the type described in U.S. Pat. No.

Abstract: A work positioner of a chip mounter comprising a positioner mechanism section for positioning a work such as a chip-shaped electronic part and a positioner driving section for driving the positioner mechanism section. The positioner mechanism section includes: guide plate; positioner blocks reciprocatively moving along at least one pair of guide grooves formed in a straight line and opposed to each other on the guide plate; and two pairs of positioner tips connected to the respective positioner blocks while clamping the guide plate in cooperation with the positioner blocks and adapted to open or close in operational association with the reciprocatory motions of the positioner blocks so as to clamp the chip-shaped work therebetween or to release it. The guide plate is clamped between the positioner blocks and the positioner tips, so that the positioner blocks and the positioner tips are caused to move along the guide grooves.

Abstract: A clamping apparatus having a fixed post with a pad and a clamping jaw post with a threaded hole, through which a screw with a handle on one end and a pad on the other passes. The clamping apparatus may be used with rails so that on the bottom rail the fixed post is placed within one hole and the clamping jaw post placed within another hole such that a workpiece may be clamped between the two, and additionally a top rail with holes that the other ends of the fixed and clamping jaw post engage with may be added to prevent the workpiece from buckling when clamping pressure is applied by turning the screw.

Abstract: In order to provide a C-shaped clamp for clamping workpieces, comprising a C-shaped clamp bow, a spindle nut arranged at one end of the clamp bow, a clamping spindle mounted in the spindle nut and a support arranged at the other end of the clamp bow, which can be used in conjunction with auxiliary elements for clamping a workpiece, it is proposed that the clamp bow have a guide section with guide surfaces for guiding infinitely adjustable, auxiliary elements for the C-shaped clamp.

Abstract: In a preferred embodiment, a ceiling clamp to assist in mounting panels to a ceiling, including: an upwardly open channel defined by a distal vertical wall, an upper portion of a proximal vertical wall parallel to the distal vertical wall, and a horizontal floor joining the distal and proximal walls, the upwardly open channel being dimensioned to accommodate therein a lower portion of a ceiling joist; clamping means to clamp the lower portion of the ceiling joist in the upwardly open channel; and a horizontal base member attached to the upwardly open channel to provide a surface upon which an end or edge of ceiling panel may be placed when the ceiling clamp is clamped to the ceiling joist.

Abstract: A clamp fixture with multi-directional opening comprises a front clamping head, a rear clamping base, a top and a bottom pressing plates and two latching bases. The latching bases are provided on top of the front clamping head and the rear clamping bases respectively. Each of the latching bases further comprises a bracket, a pin shaft, a thumb latch and a torsion spring. The thumb latch can be pressed down to securely position the top pressing plate, cooperating with the bottom pressing plate which feeds through the front clamping head and the rear clamping base to form a space for securely clamping the working objects with multiple panels. The operation is simple and the structure is compact.

Abstract: A clamp fixture with multi-directional opening mainly comprises a front clamping head, a rear clamping base, a top pressing plate, a bottom pressing plate and two lock clamping bases. The front clamping head consists of two side plates which are riveted together by a lower stud shaft and a central stud shaft. The central shaft has a bolt, the front portion of which has a pushing block, and the rear end of the bolt has a wing nut connected thereto. Moreover, the rear clamping base also consists two side plates to cooperate with a lower stud shaft. The central stud shaft is inserted with an inverted U-shaped blocking base for holding the objects to be clamped. In addition, the upper and the bottom pressing plates are designed to have appropriate thickness. The two lock clamping bases are respectively installed on top of the front clamping head and the rear clamping base. Each of the lock clamping bases is made up of a bracket, a stud shaft, a screw bolt with a holding block.

Abstract: A woodworking bench and related fixtures providing an integrated system of bench features, vises, dogs, panel clamps, hold-downs and fixtures that cooperate to provide a highly flexible workpiece holding and clamping apparatus able to accommodate a wide variety of shapes and sizes of workpieces and hold such workpieces in an enormous variety of positions during numerous different operations. Two substantial slabs provide the bench top surface and carry a rectilinear pattern (in rows and files) of round, vertical bench dog holes. The rectilinear pattern of round bench dog holes with specific, equal spacing between holes, and similar holes in the edge of the top, facilitate great flexibility in clamping using conventional round dogs in the bench top holes and corresponding dogs in bench edge-mounted, or end-mounted vises. Such holes also accommodate other clamping, fixing and hold-down fixtures that contribute to flexibility and utility.

Abstract: A clip for removably securing a semi-conductor wafer to the treatment surface of a semi-conductor wafer processing pedestal. The clip is constructed with a pair of spaced apart, forwardly extending tines adapted to engage outer edges of a semi-conductor wafer supported upon the treatment surface. A clip tail is oppositely disposed from the tines and affords resilient movement of the tines toward and away from the edges of the pedestal treatment surface to enable the installation and removal of the wafer therefrom.

Abstract: A pair of slide plates are vertically displaceably fixed to the opposed front surfaces of a fixed jaw and a movable jaw constituting a vice. An arbitrary number of presser members for pressing a work are fixed on the upper surfaces of the fixed jaw and the movable jaw. The work is placed on upper ends of the slide plates adjusted in height, and a pressure from setscrews of the presser members is applied to the upper surface of the work. Accordingly, even when the work is a thin plate-shaped work, it can be stably held to prevent possible vertical curving of the work.

Abstract: An auxiliary pressure clamp is provided for a bar clamp structure on an internally threaded sleeve for adjustably engaging an elongated bar of the bar clamp at a right angle thereto. A force-applying screw is threaded into the sleeve and has a handle at another end to rotate the force applying screw within the sleeve. A head will engage with a work place at a right angle to the clamping action of the bar clamp to apply pressure thereto, especially when various parts of the work piece are being glued together, or a veneer is being glued to a surface of a work piece.

Abstract: A clip for removably securing a semi-conductor wafer to the treatment surface of a semi-conductor wafer processing pedestal. The clip is constructed with a pair of spaced apart, forwardly extending tines adapted to engage outer edges of a semi-conductor wafer supported upon the treatment surface. A clip tail is oppositely disposed from the tines and affords resilient movement of the tines toward and away from the edges of the pedestal treatment surface to enable the installation and removal of the wafer therefrom.

Abstract: A clamping jig releasably holds a workpiece of elongate cross section such as a radiator core. The jig includes an upright frame and a parallelogram-shaped horizontal articulated linkage having a pair of parallel side rails and a pair of end members pivotally connected to the ends of the side rails for movement about vertical axes. The side rails are spaced apart a distance greater than the width of a radiator core, and are moved by a pneumatic cylinder or other actuator so that the links pivot about their axes, and the side rails move closer together to clamp the radiator core between them. The clamping mechanism is operated by a foot pedal, for hands free operation. The vertical height of the parallelogram linkage may be readily adjusted, and hold-down elements are provided to exert a downward pressure on the radiator when it is held clamped between the side rails.

Abstract: A clamping apparatus is disclosed which can clamp a workpiece in two non-parallel directions. The apparatus is made up of a pipe clamp having an attached adjustable height beam member which spans a significant portion of the pipe clamp's length. The beam member is attached to the pipe clamp by a "U"-bolt shaped retainer at one end and an eye-bolt shaped retainer at the other end. The beam member is sized so that it can be released from the "U"-bolt shaped retainer and thereby be allowed to pivot about the eye-bolt shaped retainer. A modified block structure is also disclosed which can be placed between the beam member and a workpiece being clamped.

Abstract: A woodworking corner clamp assembly having two screw clamp assemblies, each clamp assembly being oriented perpendicular to one leg of an L-shaped frame. Each clamp is also capable of longitudinal sliding movement along one leg of the L-shaped frame. The longitudinal position of each clamp along the respective leg of the L-shaped frame is controlled by the rotation of a threaded rod which passes through a longitudinal slot located in the leg of the frame and through a portion of the base of the clamp member, such that rotation of the threaded rod causes the clamp to be driven longitudinally along the length of the frame.

Abstract: There is disclosed a clamp device for clamping a workpiece, e.g. a ceramic shaped body having a surface curvature. Support members are mounted on the base frame to support the workpiece thereon, and are adapted to swing about predetermined rotational axes. First clamp members are mounted on a base frame and adapted to swing about predetermined rotational axes. Second clamp members are mounted on a sub-frame, which is movable relative to the base frame, and are adapted to swing about predetermined rotational axes. The second clamp members can be moved toward the first clamp members to clamp a workpiece therebetween.

Abstract: The present invention relates to a work holder for a vice in a machine tool, in which by means of a holder body attached removably to a fixed jaw of the vice and a clamp block and a clamp screw both attached to the holder body, a work whose side faces have already been machined is fixed temporarily in an exact vertical posture and then fixed completely by the vice so that the side faces thereof are set exactly at right angles to permit machining for the top face of the work.

Abstract: A V-block accurately and predictably aligns an electrode blank with respect to an electrode holder. The V-block is clamped against two locating flats that are machined perpendicular to each other and perpendicular to an end face of a standard 20 mm diam. electrode holder. A clamping ring locks the V-block against the machined flats of the electrode holder. The location of the machined flats with respect to the center of the electrode holder shaft is based upon the size of the electrode which will be automatically centered on the electrode holder.

Abstract: In precision machining, a workpiece can be rapidly located with respect to three mutually perpendicular datum planes by positioning it within both a main machine vise and a supplemental machine vise held within the main machine vise, with the supplemental machine vise being one that has an overall length extending beyond the grip of the main machine vise, ground and polished planar side surfaces adapted to be positioned so that one of them is in contact with the substantially planar ground and polished bed surface of the main machine vise, and a ground and polished substantially planar base surface on the supplemental vise, which is adapted to be abutted, usually but not necessarily in a vertical position, against the working interior face of the fixed jaw of the main machine vise.

Abstract: A double-acting vise comprising a supporting structure, a first set of jaws mounted on the supporting structure for movement toward and away from each other, and a second set of jaws mounted on the supporting structure for movement toward and away from each other. All of the jaws move relative to the supporting structure.

Abstract: An electrode holder clamps the electrode 11 in two perpendicular directions by clamp members 33 and 40. Each clamp member slidably rests on base seat 16 which has side portions 17 and 18 that extend at right angles to each other. Clamp screws 60 and 63 along with serrated engaging faces 48 and 54 and engaging members 47 and 53 allow clamp members 33 and 40 to be positioned finely, thereby accurately positioning the electrode 11. Because the respective clamp faces 37 and 44 of the clamp members 33 and 40 are formed to fit each other, even a small-diameter electrode can easily be clamped into position.

Abstract: A symmetrical clamping device for producing bonded uniform panels from narrow strips of wood as well as laminated boards glued together. Includes two relatively long guide plates provided with appropriate linkage mechanism capable of exerting pressure to the entire surface being clamped while applying force to the ends in a direction that is perpendicular to that surface when actuated manually by way of appropriate jack screws disposed at each end of the guide plates or automatically by using power cylinders in combination with linkage and an end bolt incorporated therein, to insure participation of bondable material in the process of clamping and conformation to the surfaces of guide plates which may have a straight flat surface or an irregular shape so as to produce desired final product.

Abstract: A vise structure has a control handle cooperating with a two-part guide rod means, including respective inner and outer rods mounted telescopically relative to each other. The handle is rotatably supported on the frame and has a limited longitudinal movement thereon. In one longitudinal position, the handle is coupled only to the inner rod for rotation in unison; and the inner rod is linked to a pair of pivotably-mounted vise jaws arranged to move towards and away from each other transversely of the vise structure. In a second position of the handle, both the inner and outer rods are rotated for movement of the pivotably-mounted vise jaws and, respectively, for longitudinal movement of a transversely-arranged elongated vise jaw from one end of the structure to its other end. In a third position of the handle, only the outer end is rotated for movement of only the elongated vise jaw. The vise structure is adapted for a work bench and is arranged to clamp various irregularly-shaped work pieces therein.

Abstract: A pair of clamp claw assemblies are mounted on the frame of a workbench. At least one clamp claw assembly is movable in a substantially horizontal plane laterally of the workbench and in a direction towards and away from the other clamp claw assembly. Each clamp claw assembly has a pair of substantially parallel threaded rods rotatably mounted on the frame. A pair of threaded blocks are carried on the rods, and a clamp claw is pivotably mounted about a substantially vertical axis on each block, such that the clamp claws are pivotably independently of one another. In a preferred embodiment, four clamp claws are provided; and the threaded rods have respective handles disposed on the same side of the workbench frame.

Abstract: A plurality of clamping elements are centrally joined to provide an optimal and multiple workholding usage. The overall shape and particular angles utilized provide a workholder beneficial for craftsmen and hobbyists. Also disclosed are pipe holding attachments designed to be used with the system.

Abstract: A machine for use in the fusion fitting of a branch, T- or saddle junction to a pipe, comprises a first clamp for holding pipe and a second clamp for holding the fitting in the correct orientation to the pipe. A manually-operated sliding plunger arrangement allows the second clamp to be moved towards or away from the first clamp by way of a manually operated device. The second clamp can be locked against retraction from any one of a plurality of positions relative to the first clamp, and is adapted to be loaded towards the first clamp in its locked positions during the fusion process when a fitting engages a pipe or a heating tool is held between a pipe and fitting. The shaft which controls the movement of the second clamp has a pivoting extension or plunger terminated by a handle, which can be folded upward. Pins mounted at selected intervals on the plunger cooperate with a loading plate during the downward movement of the plunger to urge the second clamp either toward or away from the first clamp.