Abstract: A system for remotely opening and closing a process equipment bolt flange joint may include a hydraulic cylinder actuator assembly for attaching to the flanges of a bolt flange joint to open and close the joint by operation of a remote hydraulic pump. More than one actuator assembly may be evenly spaced around the flange joint, to ensure even distribution of force around the joint. The system may have an accumulator for receiving hydraulic fluid expelled from the hydraulic cylinder during extension and to force hydraulic fluid back into the cylinder to close the flange joint upon pressure release at the pump. A drop trigger may be used to release hydraulic pressure at the pump for emergencies. The system may include a video camera for viewing the joint on a display. The components may be stored and transported on a mobile cart. A method of use is also disclosed.

Abstract: A clamping device includes a cylinder, a base body, a movable plate, and holding pins. The movable plate is attached to the base body substantially parallel thereto via two pairs of link arms. The movable plate moves along the operating direction of the cylinder. The movable plate can abut against a width-direction side surface of a workpiece. The holding pins are attached to the movable plate. The holding pins abut against an upper portion of the workpiece.

Abstract: A coping sled with improved hold down clamp for clamping a piece of wood while cutting the piece of wood with a cutting tool. More specifically, the coping sled of the present invention provides various systems to eliminate unintended movement and facilitate different types of intended movement: lateral, horizontal, vertical, and pivotal.

Abstract: Present invention disclosed and claimed a magnetic clamping tool where a clamping arm with a clamping finger serves to clamp on a working object in normal, sideways, or even up-side-down orientations, where the movements of the clamping finger is controlled by a first wing screw and the movement of the clamping arm is controlled by a third wing screw. The clamping arm is releasably attached to a bracket which is further releasably attached to a V-pad by a locking nut. An anti-tipping screw provides a counter-balancing force to the biasing force of a helical spring on the bracket, and is most useful when the longitudinal direction of the bracket is at a 90-degree angle with the longitudinal direction of the clamping arm.

Abstract: A workpiece locator is provided. The workpiece locator includes a base that is disposed on a work station and a locating member that is pivotally mounted on the base and has a holding structure that supports and fixes the position of at least one type of workpiece. Additionally, a locating member is configured to pivot to return to original positions.

Abstract: A workpiece clamp comprising: a body; a workpiece-engaging spring edge connected to the body; and an opening for accepting a screw for securing the body to a fixture plate.

Abstract: A device and a method for holding a shaft, preferably a winding shaft, hold the shaft in a clamping jaw. A lever, which is rotationally supported about a first axis, is moved in reference to the shaft.

Abstract: A rocking jaw gripper for restraining tubulars including an arm with a rocking jaw gripper rocker jaw, a rocking jaw gripper frame connected with the arm, a locking pin connecting the rocking jaw gripper frame to the chain cylinder, a hinge pin connecting the rocking jaw gripper frame to the arm and a plate jaw fastener retaining the rocker jaw body between the top plate and the bottom plate by engaging the tail hole of the rocker jaw body. When the rocking jaw gripper is engaged, it acts to restrain the movement of a tubular during make-up and break-out.

Abstract: A tool device includes a support lever having two screw holes, a pressing lever, an adjusting member is threaded with one of the screw holes and pivotally coupled to the middle portion of the pressing lever, and a pressing member is threaded with the other screw hole of the support lever and has an end portion for engaging with a rear portion of the pressing lever, a holding member is attached to the support lever and includes a front portion having an opening, and a retaining member is changeably attached to the support lever for engaging with the holding member and for selectively engaging or retaining the ball joint or universal joint between the retaining member and the pressing lever.

Abstract: The present invention provides clamp head comprising an arched body having upper and lower faces, a vertex and opposing unequal length arms. The body is further provided with a through aperture for a bolt or like threaded fastener which extends between the upper and lower faces in the region of the vertex. The aperture in the upper face is oval and tapers outwardly through the body in the direction of the lower face. The arms comprise a reaction arm having at its distal end a reaction face and a clamping arm having at its distal end a clamping face, the reaction and clamping faces being provided with respective formations. The formations of the reaction arm extend in a direction which is substantially transverse to the direction of the formations of the clamping arm.

Abstract: A power tool machine includes a base, a fence, a cutting arm, a motor, a saw blade and a holding apparatus. The base has an operating surface for supporting a workpiece. The fence mounted on the operating surface has a standing surface substantially perpendicular to the operating surface for abutted by a side of the workpiece. The cutting arm pivotally coupled to the base. The saw blade mounted to the cutting arm is rotatable by the motor. The holding apparatus includes a supporting device mounted on the base, a connecting device including a body connected to the supporting device, wherein a length direction of the connecting device is substantially perpendicular to a length direction of the supporting device, an adjustable device pivotally coupled to the connecting device, and a pressing device connected to the adjustable device for selectively pressing another side of the workpiece.

Abstract: A quick clamping device includes a main body adapted to be mounted on a mold holder, a clamp piece including first and second arm sections and pivoted to the main body between the first and second arm sections, a wedge body mounted movably on the main body below the second arm section, and a driving unit connected to the wedge body. The first arm section has a press end adapted to clamp a mold unit against the mold holder. The wedge body is movable between a first position, in which the wedge body lifts the second arm section so as to move downward the press end toward the mold unit, and a second position, in which the wedge body moves away from the first position.

Abstract: A clamping element is provided for clamping work pieces on machine tables and the like with a tiltably mounted clamping lever, which is longitudinally displaceable in the clamping plane. The clamping element includes a housing (1) provided with a fork head (3), in the forks of which holes (4) are provided centrally and into which a king pin (5) each is inserted in a rotatably mounted manner. The king pins (5) are provided with guide pins (6), which have two opposite flattened areas. The clamping lever is a square with two grooves (8) milled in, in opposite locations. The clamping lever (2) can be pushed with its grooves (8) onto the guide pins (6) of the king pins (5) inserted into the fork head (3).

Abstract: An apparatus for retaining objects on surfaces includes a body, a lock pin extending from the body, and a pin extending through the body and engageable with the lock pin so that movement of the pin causes movement of the lock pin so that the apparatus is secured to the surface. The pin may be slidably moved into and out of the lock pin and thereby cause the lock pin to secure and release the apparatus from the surface. The apparatus may also include an engagement member that contacts an object and provides additional retentive forces. The apparatus provides clamping forces on the object so that the object may be forged or otherwise machined. Related methods are also disclosed.

Abstract: A power clamp apparatus, comprised of, a single metal body with an interior cavity running there through, a unit assembly which is inserted into said interior cavity, and said unit assembly including, a piston for slidable back and forth movement within said cavity, a lower portion of said cavity acting as a chamber for said piston, a piston rod connected to said piston, a floating head member on the piston rod, a link mechanism connected proximate to an upper end of said piston rod, a lower cap member which closes off said cavity near a bottom end of said metal body, an upper cap member which closes off the metal body proximate to a top end thereof after said unit assembly is inserted into said cavity, a drive shaft inserted through apertures in a generally transverse position through said metal body, with a central portion of said drive shaft inside the metal body being connected to an end of said link mechanism, a clamp arm attached to said drive shaft on the outside of said metal body, and wherein when sa

Abstract: A hold down clamp that includes a base member. The hold down clamp further includes a bar pivotally connected to the base member on one end thereof. A handle is pivotally connected to a base member and on an end opposite of the bar. The clamp further includes a link connected to the handle and the bar. The link has a stopper extending from a side thereof. The clamp also includes a holder member connected to an end of the bar.

Abstract: An apparatus for manufacturing a semiconductor device includes a rotatable spindle, a head detachably connected to the spindle, and a clamp for clamping outer circumferential surfaces of the spindle and the head to one another so that the head may be driven by the spindle. The clamp has an annular clamping frame sized to encircle the outer circumferential surfaces of the spindle and the head, a projection disposed on one end of the clamping frame, a lever pivotally connected to the other end of the clamping frame, and a fastener pivotally connected to the lever and configured to hook over the projection. Once the fastener is hooked over the projection, the lever is pivoted to force the ends of the annular clamping frame together and thereby produce a clamping force that secures the spindle and head to one another. The clamp can be manipulated easily and with a simple motion to clamp the head to the spindle. Also, the parts of the clamp generate little mechanical friction.

Abstract: A rocking lever clamp device is disclosed for holding a workpiece. The rocking lever clamp is a one-piece design. In a preferred embodiment, the rocking lever clamp contains an elongated hole to permit rotation of the clamp relative to downward motion of a jacking screw. In another preferred embodiment, an automatic clamping system is disclosed to rotate the clamp. The rotation of rocking lever clamp causes a workpiece-engaging edge to hold a workpiece.

Abstract: A workpiece holding device for a T-slotted machine table includes a locator block having a planar bottom surface, a mounting hole that intersects the bottom surface to define a center point, at least one workpiece locating surface disposed a predetermined distance from the center point, and a key protruding from the bottom surface at a second point offset a predetermined distance from the center point. The protruding portion of the key has a width substantially the same as the T-slot opening so as to slidably mount in the T-slot. A fastener extends through the mounting hole and secures the locator block to a T-nut slidably mounted in the T-slot. A clamp secured to the locator block clamps the workpiece to the locating surface of the locator block. A method of using the device is also disclosed.

Abstract: A work piece clamping device is composed of a clamping block, a locking cover, a plate button, a support rod, a press rod, a tightening nut engaged with the press rod, and a fastening member. The clamping block is provided with a vertical wall for locating a work piece in place on a workbench top. The clamping block can be moved up and down along the support rod by the fastening member which is located under the workbench top and is movably fitted over the support rod. The clamping block is exerted on by the pressure of the plate button so as to hold securely the work piece on the workbench top.

Abstract: A pressing-out device (1) for pressing a joint pin out of a bearing eye, comprising a pressing lever (3) and a support lever (2), which are pivotably connected to one another. The distance between the pressing lever (3) and the support lever (2) is presettable via an adjusting member (5). To press out the joint pin, the support lever (2) is supported on the bearing eye, and the pressing lever (3) performs a relative pivoting movement in relation to the support lever (2), which pivoting movement is brought about by a pressing member (4), and it presses the joint pin out of the bearing eye. To press out joint pins and bearing eyes of different designs under different conditions of use, the adjusting member is formed by an adjusting spindle (5) with a joint pin (9) extending at right angles thereto, with which joint pin different support levers (2) can be optionally and interchangeably coupled with receiving elements of various designs for the bearing eye.

Abstract: A powered clamp and gauging apparatus performs as a clamp with moveable members which generate a toggle action, or performs as a gauging device having a pair of moveable members which mechanically abuts against each other to maintain, at least temporarily, a locking position of an arm even when actuating fluid pressures have been decreased or lost. In another aspect of the present invention, a lost linear motion device is provided in order to maximize arm unlocking forces. A uniquely configured slide, crank and hub are provided in a further aspect of the present invention. Methods of operating and assembling the present invention apparatus are also provided.

Abstract: A workpiece holder, particularly adapted for holding eyeglasses lenses (L), comprises a support (12) on which there are arranged two clamps (14, 17, 117) for clamping each a portion of a lense. Each clamp defines an axis (A) which is substantially perpendicular to the portion of lense clamped thereby. Each clamp is positionable and lockable with said axis (A) oriented in any direction at the interior of an ideal cone (A1 - A2) having a vertex through which the said axis (A) is passing. Positioning means (3, 4, 40) are provided for displacing the said support (12) along a horizontal plane with respect to a fixed tool (28).

Abstract: A sliding block (8) for securely clamping a clamping tool on an underlying surface, in particular a clamping table (7), which exhibits at least one T-slot shaped clearance (18), having a base (14) which may have a rectangular outline and a clamping plate (15) which exhibits a pair of anchorage continuations (16) which project with respect to the base (14) and are in a symmetrical arrangement. A threaded bore (12) is provided which passes through the base (14) and the clamping plate (15) and receives a fastening bolt (9). The clamping plate (15) has a further pair of anchorage continuations (17) and the base (14) and the clamping plate (15) with the two pairs of anchorage continuations are matched to two T-slot-shaped clearances (18, 19) of different geometry. The two pairs of anchorage continuations (16, 17) on the clamping plate (15) are, with respect to the axis (13) of the threaded bore (12), turned through an angle of 90.degree. with respect to one another.

Abstract: A clamp secures objects against a structure adjacent to and on either side f a rib of the structure. First and second arms are pivotally coupled to one another at a pivot point. The arms define a pair of opposing jaws that engage the rib and a pair of levers extending away from the opposing jaws on either side of the rib. A threaded member cooperating with each lever is rotated towards the structure. An object is positioned between each threaded member and the structure. In this way, the threaded members press the objects securely against the structure as the opposing jaws grip the rib.

Abstract: A device for securely clamping a workpiece (2) on a clamping table (1), which device has a guide shoe (3) which can be fastened on the clamping table (1) and has T-slot-shaped clearances (35) which continue, in a symmetrical arrangement, over the length of the guide shoe. The device also has a clamping claw (8) which is designed as a tilting lever and has a clamping leg (10) and a bracing leg (9). A clamping bolt (11) is provided which passes through the clamping leg (10) in the region of its free end and, in the clamping position, fixes the clamping claw (8) relative to the guide shoe (3) and securely clamps the workpiece (2). A bearing plate (4) is provided between the guide shoe (3) and clamping claw (8) and the bearing plate (4) is guided in a sliding manner in the T-slot-shaped clearances (35) by means of strip-like protrusions (21).

Abstract: A workpiece clamping apparatus has a first cam with an arcuate exterior surface thereon. A pin is provided for rotationally mounting the cam about an axis to an anchoring member. An adjusting mechanism is provided for adjusting the position of the pin means with respect to the anchoring member.A second cam is operably attached to the pin and is mounted for rotation about the axis.An anchoring member is attached to the work surface.A track member is attached to the work surface and the bottom of the anchoring member is attached to the track member.

Abstract: A first threaded member (11) is supported by a housing (3) so as to be rotatable about its axis and to be unable to axially advance and retreat. While a second threaded member (22) is threadably engaged with the first threaded member (11) so as to be able to axially advance and retreat, the second threaded member (22) is supported by the housing (3) under the condition that its rotation about its axis is preventable. Under a clamping condition, the second threaded member (22) is strongly tightened by the first threaded member (11) which has been rotated by an impact wrench (16). Thereby, a metal mold (6) is fixedly pressed by a clamping member (5). When changing over from the clamping condition to an unclamping condition, large counterclockwise impacts are intermittently imposed to the first threaded member (11) by the wrench (16). Thereupon, the first threaded member (11) is rotated counterclockwise little by little by those impacts.

Abstract: A toggle clamp which includes a handle for actuating a toggle mechanism between a clamped or released position. The toggle clamp, including a latch assembly for locking said toggle clamp in a clamped position to prevent unintentional movement of the toggle clamp when the toggle clamp is in either a closed, clamped position or an open, unclamped position. The latch assembly includes a pivotal lever member which engages complementary notches located in a locking disk attached to the clamp base.

Abstract: In order to improve a clamping device, in particular for clamping workpieces on a machine table, comprising a housing securable in position on a support surface of a carrier by means of an anchoring element, a clamping element movable relative to the housing and having a clamping arm projecting from the housing and a clamping spindle rotatably mounted on the housing for moving the clamping element, such that the housing can be secured in place on the support surface in as simple a manner as possible, it is suggested that a fastening element supported on the housing be movable relative to the housing from a first position into a second position for securing the housing in position, that in the first position the housing be detachable from the support surface and that in the second position the fastening element secure the housing in position on the support surface by acting on the anchoring element with a fastening force.

Abstract: A slide actuated holding clamp for holding a connector stationary while a push test or pull test is performed on a conductor secured to the connector. The clamp comprises a main body portion having an opening formed therein, a locking member adapted to fit nestably substantially within the opening, and an actuating member adapted to fit nestably within a recessed portion in the locking member. The actuating member is pivotally coupled to an upper end portion of the locking member and the locking member is captively held within the opening in the main body portion by a locking pin. The locking member includes elongated openings which allow the locking member to be urged slidably longitudinally within the main body portion as the actuating member is moved in first and second longitudinal directions. The pivotal coupling of the actuating member and locking member allows the locking member to be urged pivotally into abutting engagement with a connector as the actuating member is moved in a first linear direction.

Abstract: Service equipment for use in hostile environments includes a detachable service unit secured to a stationary service unit. The detachable service unit includes a housing with an exterior plate, a power control interface for connection to an exterior power source, locating pins located in said exterior plate, an electrical connector in the exterior plate electrically coupled to said power control interface, and a pair of clamping receptacles formed in the exterior plate and located on adjacent opposite edges of the exterior plate. The stationary unit includes an electrical connector for connection to the electrical connector of the detachable service unit, a clamping apparatus for clamping and unclamping the detachable service unit from the stationary unit, a base clamp assembly for mounting the clamping apparatus onto the stationary unit, and locating pin holes for receiving the locating pins and aligning the detachable service unit onto the stationary unit.

Abstract: A slide actuated holding clamp for holding a connector block stationary while a push test is performed on a conductor secured to the connector. The clamp comprises a body portion having a bore extending longitudinally therethrough and a portion forming a channel. A locking member is pivotally disposed within the channel and includes a locking finger portion and a lower shoulder portion. An actuating member is slidably disposed within the channel and includes a pin member extending transversely therethrough which causes the locking member to move pivotally such that the locking finger portion is moved outwardly of the channel when the actuating member is moved in a first direction. When the actuating member is moved in a longitudinally opposite second direction, the pin member abuttingly engages the lower shoulder portion, thereby causing the locking member to move pivotally such that the locking finger portion is retracted to a position within the channel.

Abstract: A hold-down utilizing a round, interchangeable post having annular barb-like ridges or projections that engage a workbench top through round holes that may be located at substantially any desired positions in the bench top. The post threads into a hold-down body having, on one side of the post, a yoke within which a gooseneck-shaped hold-down arm pivots on a pin received in yoke arms or forks and, on the other side of the post, a screw pressure point and T-shaped slot for receiving the head of a clamping adjustment screw that is journaled through one end of the clamping arm. The other end of the clamping arm terminates in a foot with a rounded pad for exerting pressure against a workpiece.

Abstract: A clamp to hold a workpiece on a machine work table provides a body carrying an elongate fastening beam extending therefrom for adjustable positioning over a portion of the workpiece. The beam pivotally carries a vertically depending holder arm in a first outer end portion and is carried at a second inner end in the clamp body structure for both axial and vertically angulated motion. The clamp body is releasably fastenable to the machine work table and defines a vertically extending channel to receive the fastening beam. A vertically adjustable support pin extends horizontally through the channel to support the second beam end and the body carries a fastening screw depending into the channel spacedly distant toward the first support beam end to contact the medial portion of the support beam and create downward force thereon to hold a workpiece supported on the machine work table.

Abstract: A workbench including a work top which is supported by a base. The base includes a plurality of attachment points of which various implements such as clamps, brackets and other accesories are removably mountable such that they are secured to the workbench without requiring attachment to the work top, thereby enabling the work top to remain unmarred, imperforate and in good working condition. The plurality of attachment points allow the implements to be mounted to the base in various positions as desired.

Abstract: A device for clamping or immobilizing workpieces to be machined includes a casing adapted to be fixed to a worktable and in which is disposed a mobile part rotatable about a horizontal axis. The mobile part has a toothed sector cooperating with a lead screw. It also has an arm forming a lever whose end is adapted to bear on the workpiece to be machined. The arm is removably mounted in the mobile part and able to move in translation in a direction substantially perpendicular to the axis of rotation of the mobile part.

Abstract: A work-holding fixture for clamping a workpiece in position on a work-holding table has a guide shoe (1) and an associated clamping dog (2) which is designed as rocking lever (21) and has extensions (24) which are arranged in the center area and are supported on the guide shoe. A clamping screw (36) is provided at the free end of the clamping dog (2). The recesses (8, 9) are provided in such a way as to be continuous over the length of the guide shoe (1) and are integral parts of a T-slot-shaped cross-sectional configuration of the guide shoe (1). The clamping dog (2) has a curved form in which the free ends of the gripping leg (22) and of the clamping leg (23) are arranged higher than the extensions (24). The extensions have a roughly elliptical cross-section with an orientation of the large axis roughly in the longitudinal direction of the clamping dog (2). The clamping dog has a return spring (30) acting against the clamping direction.

Abstract: A bending-press tool can be fixed instantaneously on its tool-holder by means of a device which permits positioning and extraction of the tool on the front side of the machine without any need to displace adjacent tools. The device comprises a clamping member pivotally mounted on a longitudinal shaft and having a shouldered portion, the heel of the tool which has a suitable shape being intended to engage on the shouldered portion. After engagement, the tool is thrust from its position of equilibrium towards the rear, causes rotational displacement of the clamping member and of a locking cam which has the effect of applying the clamping member on the tool in the work position. In order to unclamp the tool, it is only necessary to withdraw the cam. The tool then remains engaged and can be extracted by pivotal displacement in the forward direction.

Abstract: The clamp for a milling machine or the like comprises a substantially semi-cylindrical body having inner and outer surfaces with the same center in cross-section. The body has two circumferential ends terminating in two lips. It also has a circumferential slot extending a substantial distance circumferentially from a center of the body toward one lip. A washer has an inner surface matching in contour the outer cylindrical surface in the vicinity of the slot. In use the one lip is placed on the bed of the machine. The other lip is applied over the workpiece. A bolt is then passed from under the bed through the slot and washer, and fastened with a nut to clamp the body against the workpiece and the bed of the machine. Then, if properly placed, the milling tool may operate upon the workpiece.

Abstract: A variable height die clamp adjustable through threaded knob on a single T-headed bolt engageable with the T-slots of conventional machine table. A clamp arm pivotally connected at the centerline of the bolt through a pair of side brackets and a bolt guide has a spaced end raised through a reaction connection of the side brackets with the machine table surface and through a transverse hydraulic piston having a flat wedge surface adapted to engage a flatted surface on a longitudinal locking pin.

Abstract: Power actuated cam clamp having mounting base with side flanges for pivotally mounted cam surfaced clamp arm, cam roller actuating link, and fluid cylinder elements. Uniform cam rise providing self-locking angle over substantial clamp range and rapid travel 90.degree. opening are accomplished with direct piston rod actuation of roller link.

Abstract: Apparatus for gripping a workpiece including a pneumatic cylinder assembly having a locking valve for selectively locking air in the pneumatic cylinder to thereby maintain the gripping apparatus in clamped engagement with a workpiece.

Abstract: A hydraulic clamp for dies of injection molding machines, workpieces of machine tools such as press machines and the like.In the front part of its housing a clamp arm is installed to be longitudinally movable and vertically pivotable and a hydraulic cylinder in the rear part thereof, and there is formed in at least either of a piston rod and the clamp arm a longitudinally extending hole for accommodating a clamp arm pushing spring. An engaging means is provided for engaging the clamp arm with the piston rod at substantially same level with the clamp arm pushing spring. When the hydraulic cylinder is driven to extend, first the clamp arm is pushed forward by the clamp arm pushing spring and, when it is extended, a projected end portion of the clamp arm is pivoted down by the force-magnifying effect of a driving wedge interlockingly connected with the piston rod.

Abstract: An apparatus for mounting gemstones in prong type settings by cutting a seat in the form of an inset edge in the ends of the prongs and swaging the remaining prong material over a stone girdle, comprising a vertical support frame holding a tool driver such as a rotating chuck assembly slidably mounted thereon for sliding between first and second predetermined limits of travel. A rotary cutting tool is coupled to the tool driver for being rotated and removing predetermined portions of the prong ends. A cylindrical mandrel or vise clamp holder is mounted on a work platform attached to the frame and positions the setting under the cutting tool. The setting is held in a fixed vertical but self adjusting lateral or horizontal position which provides automatic centering of the mounting operation. A reciprocating element moves the tool driver up or down on the vertical frame with a stop being employed to control spacing between the cutting tool and the setting.

Abstract: A self-locking, fluid-operated, tool clamping device is disclosed. The device provides a double-acting piston formed with a camming surface intermediate its ends. The camming surface is formed with a locking angle with respect to the axis of the piston. A cylindrical clamping pin is guided within the device for movement in a direction perpendicular to the camming surface and is provided with an end surface perpendicular to such direction of movement which engages the camming surface. An output lever pivotably mounted on the device engages the clamping pin at one end and is operable to engage tooling at its other end to clamp the tooling in position. The clamping pin is cylindrical and is free to rotate about its axis so as to reduce localized wear when the device is repeatedly cycled. A spring operably positioned between the lever and the body of the device resiliently biases the lever and the clamping pin toward the release position.

Abstract: A jaw is secured to a stem member having a T-shaped slot through which a pair of spaced pins pass. When the jaw and member are displaced from a clamp position to a neutral position, one of the pins is aligned with the T portion of the slot and the other pin is seated at one end of the main slot. The member tilts automatically to a retracted state in response to a spring force in a given direction. When the member is rotated from the retracted state to the neutral position the same spring force slides the jaw into the clamp position. A resilient projection on the stem member automatically engages a workpiece when the member reaches the neutral position to locate the workpiece prior to clamping.

Abstract: A die clamp arrangement for a press has a clamping lever that is shifted horizontally by a dog between an extended and a retracted position and rotated in a vertical plane between a clamping position and a released position. The cam and dog are interconnected for rotation in unison by a single shaft. In the retracted position the clamping lever is adapted to permit vertical movement of a die into and out of a press. Means are provided for actuating the clamps at the rear and at each side of the die from the front side of the press. The clamps at the front and/or the rear sides of the press are arranged to be pivoted from an operative position downwardly to an out-of the-way position below the top face of the press bolster.

Abstract: A die clamp adapted to be firmly mounted in a press has a body on which a clamping lever is rockably supported. The lever is rocked to and from a die clamping position by a rotatable cam. A screw connected to the cam by a link is shifted axially by rotating a nut on the clamp to rotate the clamp and thereby rock the lever to and from its clamping position.

Abstract: A mechanical clamp for releaseably clamping a workpiece against a supporting surface. The clamp includes means for releaseably locking the clamping member in a clamping position without use of an overcenter movement of the clamp toggle links.