Abstract: A generally rectangular frame is provided for disposition on a horizontal surface and first and second adjacent sides of the frame define convergent gripping jaws and a horizontally opening crotch at the convergent ends of the jaws for frictionally gripping adjacent peripherally spaced surfaces of a log section. An elongated third jaw is provided and pivot structure releasably pivotally attaches one end of the third jaw to selected points spaced along the first jaw for swinging of the other end of the third jaw toward and away from the end portion of the second jaw remote from the first jaw. Biasing structure is operatively connected between the third jaw and the frame and yieldably biases the third jaw to swing in a direction toward the second jaw.

Abstract: An improved vise for gripping elongated objects such as pipe is provided. The vise utilizes the rotational forces acting upon the object to be gripped to tighten the vise's grip on the object. The vise is constructed so that any force tending to rotate the object is transmitted to the vise and is translated into a gripping force to be utilized by the vise jaws of the vise. The vise is bi-directional and automatic in its operation.

Abstract: A distortion free workpiece clamping device for clamping a workpiece on a pallet for use in a transfer machine. An elongated support bar is operatively attached to the pallet, and an elongated clamp bar is operatively attached to the support bar by a clamp screw. The clamp bar has a clamp nose on one end thereof for clamping engagement with a workpiece on the pallet, and the other end of the clamp bar is supported by a fulcrum carried by the support bar.

Abstract: A chela-form clamp in which clamping action is effected by the thrust of an elongate member on a thrust block journaled in one leg of the clamp characterized by conical surfaces between the thrust block and the thrust end of the elongate member and a steel ball between them having circle contact with the conical surfaces.

Abstract: A hold-down clamp comprises a base member adapted to be affixed to the bed of a machine tool, a clamping face adapted to clamp a work piece thereto, a vertical member rigidly affixed to the base member, a dogleg-shaped arm having one end pivoted to a mid-point in said vertical member and the other end to said clamping face, and an elongated screw between the upper end of the vertical member and the knee of the dogleg for moving the clamping face to and from the work piece.

Abstract: A self-contained vise and support assembly including two jaw members urged together by screw or other appropriate devices to clamp a desired work piece therebetween. The jaw members comprise one member rigidly fixed to the vise base and one movable member pivotably mounted upon the vise body capable of freely changing position and orientation relative to the fixed jaw member in order to accommodate a multitude of different work pieces. The vise itself is supported by a support assembly permitting free movement and adjustment about a plurality of axes. The support assembly possesses the capability of being mounted or affixed to a large number of existing work tables or surfaces for greater versatility of use.

Abstract: The apparatus has a pair of spaced arms hinged at their lower ends to a base. The upper end of each arm supports a jaw which is used to grip the rubber mold. Each arm has a nut pivotably supported between the ends thereof which nut pivots about an axis parallel to the base and perpendicular to the centerline of the nut so that a long bolt, which is threaded in the nut and has its end pivotably anchored to the base, can rigidly support the arms in a substantially upright and variable position. Then by simply rotating each long bolt, the respective arm is made to rotate to change its angle it makes with the vertical.

Abstract: A work holder pallet or fixture for carrying a workpiece from station to station in a sequential machining line in combination with a workpiece clamp loosely carried by the pallet in a manner to permit loading and unloading of the pressure and the application of pressure to a workpiece to hold it against the pallet with a force developed by the clamp without any distortion reaction forces on the pallet.

Abstract: A radiator hoist and positioner includes an upright post supporting a rotatable swing arm. An extensible hoist line is mounted on the swing arm. A swivel connects a yoke structure to the hoist line. Rotatably mounted on the yoke structure are two clamp mechanisms; the clamp mechanisms are aligned for rotation. A pair of opposed pad members included in each clamp mechanism are advanced and retracted by an activator mechanism to clamp and unclamp a radiator. A clamped radiator is positioned as desired by rotating the clamp mechanisms, the yoke structure and the swing arm, and by extending or retracting the hoist line.

Abstract: Log clamping apparatus adapted for insertion between existing log conveyors and including a frame, a pair of jaws hingably engaging the frame, a pair of jacks hingably engaging the jaws and operable to open and close the jaws, and control apparatus for selectively activating the jacks. The jaws are laterally offset, hingably engaging the frame and one another, and are provided with an arcuate portion for clamping the log to prevent lateral movement and a lower, substantially planar portion operable to lift a log during the cutting process to prevent binding of the cutting saw in its contact with the log.

Abstract: A solder jig for use in constructing "stained glass" ornaments and the like having panels disposed at selected angles with respect to one another. The jig is useful in constructing ornaments by either the lead came method, or the Tiffany (copper foil) method. The jig includes a base having a flat top surface and support legs. The base provides a pair of threaded holes receiving adjustment bolts. Locking wing nuts are provided on the adjustment bolts. The heads of the adjustment bolts are equipped with bar-shaped supports. Each support includes a generally flat horizontally extending portion and a generally flat portion making an angle of approximately 140.degree. with the horizontal portion. The base also provides locating pins which protrude upwardly generally vertically from the top surface of the base. A pair of work surface providing members are notched to engage the locating pins and rest upon the supports.

Abstract: A clamp including an elongated cylindrical bar, a backup member having integral extending arm, the backup member being slidably positioned on the bar, a base member having a body portion with an opening therethrough and an integral arm extending generally parallel the backup arm, an intermediate member pivoted to the base member and extending generally parallel to it, and an actuating member pivotally received at the outer end of the base member arm and pivotal in one direction to urge the intermediate member toward the backup member so that an object positioned between the backup member and intermediate member may be clamped.

Abstract: A gear coupling for connecting for instance a control mechanism with a motor is provided at its driven end with a disk which on its face has two segmental clamp jaws which are journalled at two diametrically opposed pivot points and by means of tension screws engaging the jaws between the pivot points can be forced in a substantially radial direction against connecting pieces of the driven part. The clamp jaws are particularly resistant to bending forces and the bending force moment during adjustment is very small.

Abstract: A clamping device or clamp block which may be used to secure a work piece in place on rotary tables, mill tables, fixtures and the like, comprises a unitary block having a slot cut substantially across one dimension of the block to form a principal body portion and a jaw portion interconnected by a hinge portion at the end of the slot, a hole being formed through the body portion of the clamp parallel with the slot to receive a bolt for securing the clamp in place, another tapped hole being formed through the body perpendicular to the slot for receiving a threaded screw to act upon the jaw.

Abstract: A workpiece supporting and clamping arrangement includes supporting structure defining a supporting surface. A first top member having an upper surface is supported by the supporting structure on the supporting surface. A second top member likewise has an upper surface and both upper surfaces lie in a substantially horizontal plane. The top members also have respective mutually adjacent side walls defining clamping surfaces. A guiding structure is provided for guiding the second top member relative to the supporting structure. The second top member can be moved along the guiding structure so as to adjust the position of the second top member with respect to the first top member.

Abstract: A clamping apparatus is actuated to clamping position by a reciprocating elongated member having a clutch mechanism which either permits or does not permit reciprocation of the elongate member according to the rotative position of the elongate member in the clutch and a screw means for advancing the clamping face when the unit formed by the clutch in engagement with the elongate member is rotated. The clutch is designed so that it does not disengage until after a workpiece is unclamped.

Abstract: This invention relates to a system for releaseably securing workpieces to a worktable, including a pressure element and/or a draw element. Both said elements have means for coarse- and fine adjustment. According to the invention the draw element is flexible and consists of a link chain, the coarse adjustment means consists of at least one bracket for engagement with at least one chain link, said bracket having means for direct or indirect engagement with a groove of a worktable and that the fine adjustment means consists of a member wherein a threaded bar may be screwed. Said member and said bar are arranged to be attached to an abutment respectively to a bracket and to said chain.

Abstract: A distortion free workpiece clamping means for clamping a workpiece on a pallet for use in a transfer machine. An elongated support bar is operatively attached to the pallet, and an elongated clamp bar is operatively attached to the support bar by a clamp screw means. The clamp bar has a clamp nose on one end thereof for clamping engagement with a workpiece on the pallet, and the other end of the clamp bar is supported by fulcrum means carried by the support bar.

Abstract: A method and apparatus for attaching by remote control a riser pipe to an offshore structure. The method includes installing one or more remotely operable pre-aligned jawed clamps upon the structure, suspending the riser pipe vertically over the side of the structure, guiding the pipe to a position between the open jaws of the clamps, and remotely closing the jaws about the riser pipe. The apparatus includes an arcuate seat rigidly attachable to the structure, a pair of arcuate jaws hingedly attached to the seat, and remotely controlled hydraulic piston and cylinder assemblies to move the jaws between an open position to receive the pipe and a closed position to hold the pipe.

Abstract: A vise which is constructed of three jaws which are movable to be clamped upon an exterior object, two of the jaws moving in synchronism in respect to another jaw located in a specific position. The movable jaw assemblies are located in an overlapping crossed arrangement. The configuration of the jaws can be altered to grasp not only objects of regular shape, but also objects of irregular shape.

Abstract: A device is disclosed for use with a functional apparatus which comprises holding means operative to hold the functional apparatus and stabilizing means operative to secure the holding means in a stable position whereby the functional apparatus may be utilized without being held in the hands of the user.

Abstract: A three-way vise of this invention includes a pair of workpiece clamping jaws mounted on a frame in substantially perpendicular relation to one another, and a pivotable clamping jaw is supported on the frame for applying a clamping force onto the workpiece in a direction angularly inclined to the other jaws. An adjustable jaw pressing device is provided for selectively urging the pivotable clamping jaw into engagement with the workpiece with increased clamping force after the three jaws are initially engaged with the workpiece.

Abstract: A draw clamp for holding together abutting portions of a frame for facilitating joining of the portions to one another has a base member provided with a pair of planar support surfaces extending into the base member toward one another and meeting at substantially a right angle to form a cradle for the frame portions. Pivotally mounted on the base member is a handle which actuates a pair of locking jaws also pivotally mounted on the base member and terminating in double fangs arranged for selectively gripping the frame portions being supported by the cradle. The pivotal mounting for the handle includes an elongated slot in the base member for reception of a pivot pin therethrough. A washer is also provided between the adjacent surfaces of the base member and the handle member. This structure forms a clutch-lock type arrangement.

Abstract: A pair of portable supports that are adapted to removably engage longitudinally spaced sections of a ski to support the latter in an elevated substantially horizontal position above a floor surface to permit the ski to be tuned or maintenance work performed thereon. The pair of ski supports are of such structure that they are adapted to removably engage the edges of a longitudinal section of the ski irrespective of the configuration of the edges.

Abstract: This clamping device provides opposed banks of clamping units attached to an associated reaction beam above a work table, for clamping workpiece plates to the table during seam welding. Each clamping unit includes an upright clamping member, having an inclined finger engageable with a workpiece plate, and each member is connected to its reaction beam by a pair of transverse link members: the clamping member, link members and the reaction beam cooperate to provide a four-bar linkage. Downward pressure is applied to the clamping members by an inflatable flexible hose positioned between the lower link member of each unit and an associated reaction beam and the clamping members are upwardly biased by individual return springs extending between the upper link member and the reaction beam.

Abstract: A clamping or gripping device comprises a handle by which the device can be held in one hand to position it relatively to the work, a carrier mounted or mountable on the handle, or on a part on the handle, a first jaw carried by the handle, and a second jaw pivotally mounted on the carrier. The carrier is movable along the handle, or along a part on the handle, to move the second jaw bodily towards and away from the first jaw; and there is pivotally mounted on the carrier a lever so arranged that, when the device is being held by the handle in one hand to position it relatively to the work, the lever is movable by the same hand, as that which is holding the handle, in a direction towards the handle to cause leverage to be exerted on the second jaw to cause clamping or gripping pressure to be applied, against the work, in the direction of the first jaw.