Abstract: The workpiece holder includes a solid jaw and a flexible jaw made of hardened steel and supported by the machine table. The solid jaw and flexible jaw are movable relative to the table such that workpieces of various sizes can be positioned at a predetermined location relative to the machine tool. The solid jaw, once positioned, is unmovable. The flexible jaw can flex approximately 0.002-0.003 of in inch relative to the solid jaw such that the workpiece can be gripped or released by flexing or unflexing the flexible jaw. To provide the flexing movement, the flexible jaw is formed with a narrowed neck portion which can be deformed to create a flex point. A screw extending between the solid jaw and flexible jaw supports a nut which provides the force for flexing the flexible jaw. Because the amount of flex required to grip and release the work piece is very small, the screw and nut arranagmenet can grip and release a workpiece with only a quarter turn of the nut.

Abstract: A multiple chucking device is disclosed, which is suitable in particular for clamping in grooves of a machine table. The device includes a clamping block, at least one clamping piece, and an end block which are mounted on a pair of guide axles. The clamping block is rigidly supported on the pair of guide axles, and the clamping pieces and the end piece are adjustable in a longitudinally displaceable manner, and may be secured by locking screws that engage the axles. The clamping piece and the end block are equipped with a clamping jaw in the form of a wedge collet, and with a support housing a recess, in which an obliquely downwardly extending tightening screw is located. The screw is tightened by the wedge collet so as to engage and clamp a workpiece.

Abstract: A work piece holding device which includes a rectangular table top supported above the ground at a convenient work height and which has a fixed jaw at one end a facing sliding jaw which may be affixed to the table top at any point along the table either parallel to or at variable angles with the fixed jaw. Two inverted T-shaped slots in the table top provide guides for inverted bolts having parallel bolt head sides which firmly set the sliding jaw at the desired position and angular orientation. A variety of pairs of auxiliary jaw shapes for special jobs and a plurality of short screws placed along one of the jaws for applying resisting torque to one member of a particular pair of the auxiliary jaw shapes at one or more specific locations along that jaw are provided as well as an extender which provides for holding a work piece having a comparatively long dimension.

Abstract: A workpiece receiving and positioning device is disclosed which, in combination with a clamp member, holds a workpiece in a selected orientation relative to a slotted machine tool table surface or the like for milling or machining the workpiece. The device includes a main body portion, a block portion with opposed side faces extending from the body portion, thereby forming a recess therebetween for receiving the workpiece, and a base portion depending from the body portion and engagable with the slots in the table surface. Fasteners are provided to secure the base portion within the slots, and the clamp member includes a fasteners disposed in opposing relationship with the opposed side faces for holding the workpiece against the opposed side faces.

Abstract: A circular saw machine has a workpiece support and a clamping means consisting of a clamping arm and a clamping block for clamping workpieces; the clamping means is displaceable and clampable in a shaped groove with the aid of sliding members. The sliding members have first inclined faces and slide on corresponding second inclinded faces of the clamping block. Their slide movement may be initiated by means of a screw spindle connecting the two sliding members. When the sliding members slide upwards the clamping means is firmly clamped in the shaped groove. When they slide in the opposite direction clamping is released.

Abstract: Quick-action clamping, for holding workpieces in machine tools, and the like, is developed via orbital movements of a clamp member as induced by relative rotation of the mated eccentric head portion of a cooperating special machine screw threadedly engaged with a suitable mount. In a simple and economical expression of the clamp in a highly-advantageous low-profile form, the bolt is adapted from a steel hex-socket button-head scap screw, by machining a cylindrical exterior to its head in a laterally-offset relation to the central longitudinal axis of the cap screw, and the eccentric head of that modified screw member is fitted within an accommodating cylindrical recess in a shallow brass nut-like clamp member having "flats" about its periphery.

Abstract: An apparatus is disclosed which facilitates rapid insertion, removal and exchange of a fixture in situations where it must be securely attached to a support surface before or after removal from such surface. The fixture has a plurality of studs extending outwardly therefrom which guide the fixture tool through channels in a support surface and into placement in respective slots of T-slot clamps which are moved by fluid pressure to the open position, the fixture transferred, and the fluid pressure released to effect clamping. The present invention can be used in a high production manufacturing system such as a press or molding operation and is particularly useful in thermoforming operations.

Abstract: A ski holder includes:(a) rotatable jaws having first generally longitudinally extending axis of rotation,(b) two supports for the jaws having sockets in which the jaws are rotatable about the axes,(c) the supports located for relative movement so that when a ski is placed between the jaws with its opposite sides positioned to be gripped thereby, the jaws rotatably accomodate to said ski sides as the jaws are relatively closed toward said sides.

Abstract: A resin injection metal mold unit comprising, in combination, a metal mold consisting of a cavity section and a core section, and stationary and movable metal mold supporting members for releasably holding the metal mold sections in the opposing relationship. Each supporting member has a plurality of clamping members for engaging an associated mold section. Each clamping member has a clamping slant in the complementary relationship with the counter slant chamfer of the mold section. Such members are slidably attached to an associated supporting member so as to move close and apart from the mold section. When a mold section is fixed to an associated supporting member, the clamping members are brought in contact with the mold section with their clamping slants closely fitting the counter chamfer slants of the mold section, and then clamping members are fixed to the supporting member by driving associated bolts, thereby pushing and holding the mold section against the supporting member.

Abstract: A vise for clamping two works comprising a vise body having a groove of T-shaped section and first and second reference surfaces perpendicular to the groove; a pair of movable members fitted in said T-shaped groove between said first and second reference surfaces, having clamping surfaces opposed to said reference surfaces, respectively, and provided at the rear sides opposite to said clamping surfaces with inclined surfaces inclined to converge toward the T-shaped groove; a wedge fitted between said inclined surfaces; a block slidably and disengageably fitted in the T-shaped groove between said movable members; and a bolt connecting said wedge and the block for forcing the wedge toward the block. The second reference surface is disposed on a supporting member which carries an inclined third reference surface. By removing a movable member and reversing the supporting member, the third reference surface opposes the first reference surface for clamping a single work therebetween.

Abstract: The invention relates to a circular saw machine having a machine frame, a workpiece support, a rotatingly driven circular saw blade and a clamping device for clamping workpieces on the workpiece support; the clamping device is displaceable and clampable on the machine frame and relative to the circular saw blade in a groove and by means of a sliding member engaging in this groove. The sliding member is hereby designed to be clampable in the groove by means of an eccentric so that the clamping device of such a machine may be adjusted and locked in position in a simple manner.

Abstract: To firmly retain a jaw of a lathe or like chuck against movement it is formed with a transverse passageway or hole through it about midway of its length, a U-block is inserted in it in an inverted position so its legs will bear on the chuck face and a bolt is threaded in jaw directly above the U-block so it will bear on the block and force it against the chuck face.

Abstract: A tool for clamping a workpiece on a table or comparable support while work is being performed on the workpiece has a pair of elongated arms, one below the table and the other, when in use, above the table. The vertically spaced arms are swingable in horizontal planes about spaced, vertical axes, the axis of swinging movement of the lower arm being beneath the table. An upright post secured to the lower arm in spaced relationship to the table, and extending upwardly from the lower arm, swingably supports one end of the upper arm. A screw carried above the table by the upper arm at its opposite end is movable downwardly to a position clamping the workpiece onto the upper surface of the table.

Abstract: A vise clamp has an elongated body which fits into a T-shaped slot of a tool table. The body has a head at one end which extends out of the slot and pair of pivotal lugs which fit under the side shoulder of the slot. Means are provided to provide a pivoting action which tends to pivot the head toward the table surface to tend to clamp a tool such as a vise against the table. The major portion of the clamp thus remains recessed below the table surface. The clamp permits making a low profile swivel base vise that has the clamps positioned below the vise base and yet they are easily operated.

Abstract: Clamping cylinders (8) are built into a pallet (1) for clamping on a machine tool table (2). Tongues (14) are connected to the pistons (10) of the clamping cylinders (8), which tongues project over the bottom surface (6) of the pallet (1) and fit into normal T-slots (15) of a machine tool table (2). The tongues (14) are clamped in the clamping position by cup spring sets (11) in the T-slots (15). To release the pallets the clamping cylinders (8) are loaded with pressure fluid, which is supplied through a hydraulic coupling (18, 27), which is automatically coupled together when a moving rod (3b) engages the pallet (1). The novel system permits the use of pallets (1) for clamping of workpieces to be worked, without need for significant changes in the machine tool table (2) (FIG. 2).

Abstract: The invention combines a Vee block and angle plate, as used for example by tool makers, into a single article. As shown in FIG. 1, for example, it is possible to maintain much of the versatility of a typical angle plate with that of a typical Vee block, but at greatly reduced cost as compared to that of providing the two separate parts.

Abstract: A precision aligned split V-block for holding a workpiece during a milling operation having an expandable frame for allowing various sized workpieces to be accommodated, is easily secured directly to the mill table and having key lugs in one base of the split V-block that assures constant alignment.

Abstract: A vise clamp has an elongated body which fits into a T-shaped slot of a tool table. The body has a head at one end which extends out of the slot and pair of pivotal lugs which fit under the side shoulder of the slot. Means are provided to provide a pivoting action which tends to pivot the head toward the table surface to tend to clamp a tool such as a vise against the table. The major portion of the clamp thus remains recessed below the table surface. The clamp permits making a low profile swivel base vise that has the clamps positioned below the vise base and yet they are easily operated.

Abstract: A combination vise that comprises a box construction frame that has three side surfaces for supporting the vise so that the jaws can be placed perpendicular to the table surface by laying the vise on either side and clamping it in position, or the jaws can be positioned on the top of the vise in a normal manner when the vise is set on its bottom.The three side surfaces of the vise which do not carry the jaws are machined so they will lay flat on a machine tool table and properly orient the jaws when the vise is clamped on any one of the three usable sides.

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: A vise to hold a pair of skis in either the flat or edge up positions employs two spaced base members, a pair of guide-ways and a clamping rod extending between the base members. A floating jaw slides along the guideways and a movable clamping jaw is side actuated to grip the clamping rod to hold the skis in a snug and firm condition.

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 bench vise consisting of a table having a planar top including a depending vertical planar apron along its forward edge, the apron forming a fixed vise jaw, a movable jaw fixture including a planar movable vise jaw, and brackets for supporting the fixture selectively either in a position with the movable jaw confronting the apron jaw, in parallel relation thereto, or in a position above and parallel to the table top, so that the table top serves as a fixed vise jaw.

Abstract: Disclosed herein is a holding clamp assembly disposed on a table having parallel trackways disposed thereon. Riding within these trackways are diverse types of clamping mechanisms which cooperate and coact with one another to provide retention means for objects to be worked on. In one embodiment, the clamping devices comprise opposed parallel faces which engage the object to be worked on. Another embodiment the clamping mechanism is defined by L-shaped clamps having clamping screws disposed at one extremity to engage a work piece between the table surface and the screw clamp.