Abstract: A workbench having a pair of vise assemblies mounted on a frame with each vise assembly having a movable jaw and a fixed jaw, wherein one vise assembly is operable with a lead screw to move towards and away from the other vise assembly which is fixed and arranged parallel to the movable vise assembly. Each movable jaw is operable with a screw threaded rod to move towards and away from each corresponding fixed jaw, and is capable of swivelling so as to enable the clamping of an irregularly shaped workpiece between the fixed and movable jaws. The pair of vise assemblies with their frame are mounted on a collapsible supporting structure which may be folded when not in use.

Abstract: An alignment level tool aligns and holds metal plate edges in alignment for welding. The tool includes an L-shaped member and a series of work adaptor members. One arm of the L-shaped member has working screw threaded therein and the other arm has a mounting plate. The adaptor members include an L-shaped adaptor bracket, and a special V-shaped adaptor bracket. The L-shaped bracket has a short leg and a relatively long leg with each leg having an opening for bolting to the mounting plate of the L-shaped member. The bracket legs provide a two point support on a curved work plate or an offset planar support for an angulated plate. The adaptor bracket is temporarily welded to one work plate. The screw is aligned with the second work plate and is actuated to positively force the work plates into alignment for welding. The tool is then removed by bending with respect to the bracket weld to break the weld.

Abstract: A hand (34) of an industrial robot for gripping a workpiece (14) and the like comprising: a hand base plate member (36) connected to a wrist portion (32); a plurality of pairs of opening and closing gripping fingers (38a and 38b, 38d) arranged on the palm face (36a) of the hand base plate member (36), and; an actuator (48 or 48') being arranged for each pair of the opening and closing fingers (38a and 38b, 38c and 38d) to actuate the fingers. The hand (34) is capable of securely and stably holding a workpiece having a heavy weight and/or an angular shape, or other complicated shape.

Abstract: A packagable workbench comprises work surfaces (1) and (1a) separated by slot (2). A sliding member (22) can be moved lengthwise and locked or unlocked on the work surface (1a) to form a positional stop opposite a pivotable force-applying tool (52). Said sliding member (22) also has exchangable fittings for tightly securing and clamping workpieces when force is applied by the force tool (52). The work surface is supported by legs (3) to which fixtures (7) can be attached for supporting a tool deck (8) and bi-sliding drawers (18) for tools and one end of stay rods (10). The legs (3) also provide vertical posts for mounting adjustable sawhorse supports (64) and plank (61). Further the work surface (1) supports a screw press (68) by tension rods (76) attached thereto for pressure applications in combination or separate. The work surface (1) also provides a fixed stop (19) removably attached to work surface (1) for along-the-bench clamping of workpieces by pressure applied from the force tool (52) when pivoted.

Abstract: A clamping device has a first and a second clamp for holding several workpieces together in a predetermined configuration and guides for allowing fasteners to be accurately positioned for holding the workpieces together once the clamping device is removed from the workpieces. The clamping device includes a body and the first clamp includes first and second arms and a device which selectively and positionably mounting the arms relative to the body and the second clamp includes a member and a device for mounting the member relative to the body and for selectively positioning the member relative to the first and second arms. Further the guides means includes first and second guides secured to the first and second arms.

Abstract: Workpiece clamp assembly adapted to engage a T-slot of a work table to provide horizontal, vertical, or a combination of horizontal and vertical clamping for a workpiece positioned on said work table.

Abstract: An approximator having at least one pair of parallel guide bars which are connected to each other rigidly on one of their adjacent ends, and having at least one clamp of which one is arranged longitudinally displaceable on the guide bars of a pair and is fixable on these in any desired displaced position. At least one additional bar pair each with respectively one displaceable and fixable clamp. The additional bar pair is pivotally connected with the at least one first mentioned bar pair and with respect to this bar pair is fixable in selective relative positions.

Abstract: A stile clamp provided with a first clamp manually operable to hold a rail against a base, and a second clamp operable in a direction perpendicular to that of the first clamp to force a stile against the held rail. The first clamp and the base have mutually perpendicular surfaces, which facilitate proper orientation of the rail and the stile before operation of the clamps fixes their positions.

Abstract: A workbench includes a top structure and a supporting structure for supporting the top structure above the floor. The top structure includes a three part vice, one part being a first elongate vice member and the second and third parts together forming a second elongate vice member extending in side-by-side relationship with the first elongate vice member, the two elongate vice members having opposed clamping faces. A first vice operating arrangement causes movement of the clamping face of at least one vice member towards and away from the clamping face of the other vice member. A second vice operating arrangement causes relative movement of the second and third parts in a direction parallel to the direction of elongation of the vice members to permit clamping of objects between opposed further clamping faces of the second and third parts.

Abstract: A clamp comprising a jaw assembly of three coacting work grippers connected to a plate provided with slots which guide the jaws so that they may be relatively arrayed and adjusted for various sizes of work pieces to be held at right angles for gluing or fastening; a left and right threaded actuating and locking screw for the two L-shaped jaws, and a separate identical screw for the third common jaw which they oppose; each jaw separately positionable manually; the two L-shaped jaws laterally in one slot set, the common rear jaw transversely in the same plane, back and forth, in three transverse slots in the plate; with shoulders to stabilize the lateral movement of the L-shaped jaws, and with a pilot mounted on rollers in the transverse slot to stabilize positioning of the rear jaw; provided with a pivoted eccentric cam in one model for the actuating and locking; and in another model a cam on end, pivoted with a hand lever with cam acting in a slot.

Abstract: A clamping apparatus adapted to be clamped to a table top in a do-it-yourself home workshop comprising a C-shaped clamping element provided with a guiding ledge and an upwardly projecting stop, both of which serve to contact a workpiece at a right angle intersection of the ledge and stop. The apparatus is further provided with a U-shaped clamping element which, in conjunction with the C-shaped clamping element, serves to hold said workpiece in a desired fixed position. The U clamp comprises a U-shaped body portion and a threaded screw element with a centering head on one end thereof and a knob on the other end which engages a threaded aperture on one leg of the U clamp. A centrally located aperture in the upwardly projecting stop of the C clamp cooperates with the centering head to axially guide such centering head of the screw element of the U clamp to thereby encircle the workpiece.

Abstract: The present invention relates to a clamping device of the kind comprising at least two jaws, at least one of which being movable to clamp one or more workpieces between the jaws, and at least one lever being pivotable in relation to the jaws and having two arms, one of which being actuated when moving the jaws towards each other in order to tend to pivot the lever and the other being arranged, when actuating said first arm, to exert a clamping force on the workpieces substantially perpendicularly to the direction of movement of the movable jaw, wherein said first arm of said lever is located between one of the jaws and the workpieces in order to be subjected to a compressive force via said workpieces when moving the jaws towards each other.

Abstract: A mitering apparatus for frames or moldings includes a base plate on which mitering saw guides and a pair of work holding vises or clamps are mounted. Each clamp has a fixed and a movable jaw and the two clamps are mountable on the base plate for either a standard 45.degree. cut or for a 30.degree. or 22-1/2.degree. cut in some instances. Guideways for the two clamps or vises are provided on the base plate for coaction with a pivoted clamp adjusting lever and links which interconnect the lever with the clamps so that they may be adjusted bodily in unison and oppositely along linear paths to assure perfect alignment of the mitered ends of molding sections or other work prior to joining by means of nails or glue. Realignment of the joint is also possible if slippage of parts should occur during nailing. It is unnecessary to unclamp the work sections or loosen the movable clamp jaws to effect proper alignment or realignment of the work.

Abstract: A clamping device adapted for use in combination with a vise to maintain a workpiece in fixed relation to the vise when being worked on. The clamping device includes a plate member which is forced downwardly on the workpiece which is being held between the jaws of the vise. The plate member is threadedly mounted to the opposing vise jaws through a pair of transversely opposed screw members. A pair of thumbscrews or lock washers threadedly engage the screw members and interface with an upper surface of the plate member to force it against the captured workpiece.

Abstract: A versatile portable workholder can be used as a vise, a V-block and a drill jig for holding different sized and shaped workpieces. The workholder includes a vise comprising two jaw pieces actuated by a screw member. A clamp can be clamped in the vise and includes a second screw member for clamping a workpiece between the clamp and the vise. A stop member is connectible to the vise for positioning or locating a workpiece relative thereto. The second screw member has a bore and serves as a drill bushing.