Abstract: A key clamp for key processing machines and key processing machine comprising a base, a first clamp and a second clamp, have the same structure and are arranged in parallel on the base, and they both have a fixed connection with the base. The first clamp comprises at least three clamping jaw and a transmission device, three clamping jaws arranged in one row, the first clamping jaw and the third clamping jaw are both fixed in relation to the base. The second clamping jaw is flexibly installed on the base. The transmission device penetrates the first clamping jaw, the second clamping jaw and the third clamping jaw, and are connected to the second clamping jaw. The key clamp can clamp house keys and automotive keys with a multitude of structures. It has the advantages of strong versatility, simple structure, easy use and reliable clamping.

Abstract: A clamp assembly a fixed end support, a movable end support and a handle disposed in one end support or the other. The handle is rotated using an electric tool, such as a drill. A female receiver is disposed within a rearward end of the handle. A male driver is removably held within a chuck of the electric drill and is inserted into the receiver to rotate and then tighten or loosen the support end of the clamp. Alternatively, the clamp assembly has a male portion that is disposed at a rear portion of an end support and a female driver is used to rotate and then tighten or loosen the clamp from the wood pieces. The female receiver and male driver can be used with either a movable end support or a stationary end support of the clamp, as could the male portion and the female driver.

Abstract: An assembly used in performing a manufacturing process on a turbine engine component includes a turbine engine component and a fixture including an opening shaped to receive a portion of the turbine engine component. The assembly includes a non-metallic cover placed over at least a portion of an external surface of the fixture. The non-metallic cover is visible when positioned over the at least a portion of the external surface of the fixture and is visible when the turbine engine component is received in the fixture opening of the fixture.

Abstract: A movable jaw quick release apparatus of a vice comprises a tooth base, a movable jaw and two restriction elements. The tooth base is formed with two inclined guide grooves, each of which has a first inclined surface, a second inclined surface and a bottom surface. The left and the right side surfaces of the movable jaw are formed with a through hole respectively. Each restriction element penetrates one of the through holes and moves between a first position and a second position along one of the inclined guide groove As the movable jaw generates vibration forces, each restriction element transfers the vibration forces to the tooth base, therefore, the movable jaw do not move upwardly and shake toward a work piece and reduce its clamping force for the work piece.

Abstract: A construction retention device comprising: a first member, a second member and an inner member; wherein the first member comprises a base and an upright; wherein the upright of the first member has at least a single holder; wherein the second member comprises a base and an upright; wherein the upright of the second member has at least a single holder; wherein the first member and the second member are connected to the inner member.

Abstract: The disclosure relates to a holder system for supporting sports equipment. The holder comprises a vise assembly comprising: a vise base; two moveable vise jaws provided with respective vise screw bores and guide bores, the two moveable vise jaws engageable with a first section on the sports equipment; a vise screw extending substantially horizontally through the vise base and oppositely disposing the movable vise jaws through the vise screw bores, and having two sections of threads allowing for movement of the movable vise jaws, the two sections being separated by a thread-free section; and one or more guide bars fixed in a substantially horizontal orientation in the vise base and extending through the respective guide bores.

Abstract: A connecting device includes an activator, a linkage mechanism, a cam, a guide, a locking bar, a torsion spring, and a spring element. The activator is rotatably connected to a first stackable storage unit. The linkage mechanism is rotatably connected to the activator. The cam is rotatably connected to the linkage mechanism. The guide defines a guiding groove. The locking bar passes through the guide and stays in contact with the cam. The locking bar includes a locking block and a rib. The rib protrudes from the lateral surface of the locking bar. The rib is slidably received in the guiding groove. The torsion spring is pivoted on the locking bar. The spring element exerts a force to the locking bar.

Abstract: The present pipe clamp device is configured for use with standard vee head jack stands. The present device can be used to secure a pipe or similarly shaped object to a standard vee head jack stand. Specifically, the present pipe clamp device can comprise one or more pivoting arms that can facilitate an object's placement into the pipe clamp device or its removal from the pipe clamp, a threaded rod, which can include a release button or quick release mechanism, which can be used to quickly tighten the clamp onto an object being secured and the jack stand or to remove an object from the jack stand.

Abstract: An exemplary clamping mechanism includes a mounting base, a clamping assembly and a driving assembly. The clamping assembly includes a rotating member rotatably assembled to the mounting base, drive pins, a guiding member, sliding members, and clamping members. The guiding member is mounted on the mounting base and defines guide slots. The sliding members are slidably engaged into the guide slots of the guiding member, and connected to the rotating member via the drive pins. The clamping members are assembled to distal ends of the sliding members, respectively. The driving assembly is mounted on the mounting base and connected to the rotating member thereby driving the rotating member to reciprocate to clamp or release a workpiece.

Abstract: A clamp device (30) includes a plurality of arms (32, 34). One of the arms supports a securing member (36). The other arm includes a curvilinear surface (40) that directly engages a curved wall of an article at a location in line with a centerline of the securing member. The curvilinear surface (40) allows for the clamp device to reliably engage an article having a curved wall for a lifting operation. One example use of a disclosed example device is for lifting tubes associated with a hydraulic elevator system.

Abstract: A coaxial concentric double-jaw vice comprises a base frame defining a longitudinal sliding groove, first and second movable jaws mounted on the base frame and movable along the sliding groove, a control rod set inserted through the first and second movable jaws and received in the sliding groove, a fixed screw rod mounted on the control rod set and screw-connected with the first movable jaw, a movable screw rod sleeved onto the control rod set and screw-connected with the second movable jaw and rotatable with the control rod set and movable axially along the control rod set by an external force, a clutch mounted in the control rod set, and a driving mechanism mounted in the control rod set and connectable to the control rod set by the clutch for rotating the control rod set.

Abstract: A main machine vise has a second auxiliary vise having independently movable clamping jaws attached to it with the auxiliary vise set to one side of the main machine vise and above a supporting surface of a machine tool table on which the main machine vise is mounted. The auxiliary vise has a movable jaw that moves in a plane generally perpendicular to the tool table on which it is mounted, while the main machine vise has a movable jaw that moves in a plane parallel to the tool table or surface on which it is mounted. The auxiliary vise is mounted on a bracket that offsets the clamping jaws of the auxiliary vise from the main machine vise so that work pieces can be independently clamped in each of the vises. The auxiliary vise includes a vibration reducing stabilizer for attaching to the tool table or support.

Abstract: A material-saving and energy-saving multifunctional bench clamp includes a movable clamp body, a fixed clamp body and a transmission pair of a screw and a nut. The fixed clamp body is provided with a holding accessory and a retractable locating-guiding device. The movable clamp body is made up of a left part and a right part. The left part is provided with two work heads, each head includes holding members, which form a holding assembly together with the accessories installed on the fixed clamp body. At least two axially locating-guiding key grooves are shaped on the cylinder guide rail of the right part and positioned the corresponding work heads of the left part. The bench clamp not only reduces processing surfaces and costs, but also saves about 30% material of clamper body under the same standard size and rated clamp force by comparison to the old multifunctional bench clamp.

Abstract: A point-welding clamp structure for side by side tightly clamping and locating different plate-shaped metal pieces in their true relative positions so as to facilitate the point-welding operation. The point-welding clamp structure includes a body section and a base section for clamping the different metal pieces. A second adjustment section is disposed on the body section and a third adjustment section is disposed on the base section. By means of operating the second and third adjustment sections, the metal pieces with different thickness can be securely clamped and located by the point-welding clamp structure.

Abstract: A drive mechanism and a gripper mechanism equipped with the drive mechanism are provided. An electrical gripper includes a drive mechanism equipped with a motor, a feed screw that transmits a rotary drive force from the motor to a feed nut capable of displacement in an axial direction, and a gripper section that grips a workpiece by coupling to the feed nut and being displaced thereby. The drive mechanism further is constituted by a self-locking mechanism, which prevents the feed nut from being retracted as a result of a reactive force received in the event that the feed nut is advanced and the workpiece is gripped by the gripper section.

Abstract: A point-welding clamp structure for side by side tightly clamping and locating different plate-shaped metal pieces in their true relative positions so as to facilitate the point-welding operation. The point-welding clamp structure includes a body section and a base section for clamping the different metal pieces. A second adjustment section is disposed on the body section and a third adjustment section is disposed on the base section. By means of operating the second and third adjustment sections, the metal pieces with different thickness can be securely clamped and located by the point-welding clamp structure.

Abstract: A point-welding clamp for tightly clamping and locating different plate-shaped metal pieces to be welded together. The point-welding clamp includes a clamp section for clamping the plate-shaped metal pieces to be welded together, a drive section for controlling the clamping force applied to the plate-shaped metal pieces by the clamp section, and an abutment section including two abutment bodies. The abutment bodies are pivotally connected with the clamp section in abutment with the plate-shaped metal pieces. Each abutment body has an engagement face. The engagement faces of the abutment bodies serve to attach to the surfaces of the plate-shaped metal pieces to keep the force applied to the plate-shaped metal pieces by the clamp section normal to the surfaces of the plate-shaped metal pieces. Accordingly, it is ensured that the plate-shaped metal pieces are securely clamped by means of the point-welding clamp.

Abstract: An embodiment of the present invention is a clamp system for use in screen printing, including first and second jaw members, screws, an extension member, and a registration pin. The jaw members are aligned and have respective facing flat surfaces and openings. The screws threadedly connect to respective openings and set the distance between jaw members for clamping a frame. The extension member remains flush to the flat surface of the first jaw member and has a housing extending orthogonal to alignment of the jaw members. The registration pin engages a hole on the housing and extends parallel to jaw members and orthogonal to the housing. The blunt end of the pin abuts a platen. All platens maintain the same position relative to the frame, when abutting the blunt end. The registration of platens to the frame allows for multiple consistent ink application onto a substrate.

Abstract: A multi-station machine vise that is disclosed herein that utilizes soft jaws, which are symmetrical and machineable on all four sides. The jaws being identical in size and configuration makes them interchangeable/usable on any vise station, which results in reduced operating costs. The movable jaws are precisely located and fastened to the vise utilizing a jaw carrier, which incorporates a pull-down action to eliminate jaw lift. The jaw carrier includes a downwardly positioned wedge design that engages a corresponding wedge on a slide that moves the jaw carrier and the jaw. Incorporating the pull-down mechanism into the jaw carrier disposed between and slide and the jaw allows for simplifying the design and manufacture of the jaws.

Abstract: A clamp for key cutting machines includes a pair of jaws mounted on a single pin fixed to the machine structure and associated with a knob screwable on a threaded portion of said pin and acting in the sense of causing the jaws to forcedly approach each other, against the elastic reaction of a spring tending to repel them, and to retain a key positioned between them. A clamp according to the invention further includes a friction type overload clutch interposed between the knob and the pin.

Abstract: A clamp system having a clamp adapted to be removably fastened to a wide variety of stationary support forming a base on which additional clamps or rods may be mounted for the purpose of holding a workpiece, the clamp including a tensioning device allowing a piece of cord to be looped over a part of the workpiece and pulled taut to bind the workpiece to the clamp. The cord is quickly and easily attachable to the clamp, fixed in place under tension, and quickly and easily released. The clamp comprises: a frame, clamping screw subassembly, at least one jamming cleat formed as part of the frame, and adjustable connector feature formed as part of the frame for connecting two or more frames together. A length of cord may be tensioned and secured within the jamming cleat of the frame and means is provided for anchoring the cord within the clamping plate.

Abstract: An assembly includes a fixture including an opening shaped to receive a portion of a turbine engine component. A non-metallic cover is placed over at least a portion of the fixture. The cover facilitates reducing metal to metal contact of the fixture and the turbine engine component when the turbine engine component is installed in the fixture, and facilitates reducing scratching of the turbine engine component.

Abstract: Attachment device for a clamp, said clamp having at least one clamp contact member for workpieces, said attachment device comprising a fixing member for fixing the attachment device in a releasable manner to the at least one clamp contact member, an attachment device contact member for contacting workpieces, which is held on the fixing member, and a pivot bearing via which the attachment device contact member is pivotable with regard to the fixing member.

Abstract: A vises includes a base; a sliding track installed on the base; a lower side of the sliding track being formed with a sliding groove; a main clamping arm extending upwards from the sliding track; a main extension arm extending at an upper side of the main clamping arm; a threaded rod screwed to a threaded hole in the sliding track; a sub-clamping arm extending from an upper side of the sliding body; a sub-extension arm extends from sub-clamping arm and toward the main extension arm of the main clamping arm; a sliding body having a part received in the sliding groove of the sliding track. The main clamping arm is symmetrical to the sub-clamping arm; and therefore, the main extension arm and the sub-extension arm can clamp a large work piece or a standing object steadily with large clamping areas and without releasing.

Abstract: A clamping mechanism is described which includes an end clamp which may include a face plate, a pair of opposing first jaws operably attached to the face plate selectively positionable toward and away from one another, each of the pair of first jaws having a first jaw inner clamp member and a first jaw outer clamp member forming a nest there between, and a pair of opposing second jaws operably attached to the face plate selectively positionable toward and away from one another, each of the pair of second jaws having a second jaw inner clamp member and a second jaw outer clamp member forming a nest there between.

Abstract: Clamping means which may be used with soldering pliers, having a first element (18) and a second element (20) relatively displaceable by the action of a screw (10) that can be rotated about an axis (XX) by the action of a motor (M); a nut (12) cooperating with the screw (10) and which can be driven in the direction of the screw axis (XX), the screw being coupled to the first element (18); first guiding means (34L) defining linear guidance parallel to the axis (XX) of the screw to prevent rotation of the nut (12) in a first phase of displacement of the nut; and second helicoidal guiding means (34H) extending with the axis (XX) of the screw (12) and which has an thread inverted in relation to the screw thread to allow the nut (12) to rotate in the same direction of rotation as the screw (10) in a second nut displacement phase; in addition to a compensation system (46) arranged between the first element (18) and a mobile support (14) coupled to the nut (12) in order to reinitialize the position of the first elem

Abstract: The clamping or gripping tool comprises a first member (18) and a second member which are capable of relative movement under the action of a drive system of the screw-nut type, the said nut being incapable of translational movement relative to the first member (18), and a compensation system (46) inserted between the first member (18) and a movable support (14) secured to the nut (12) to reset the position of this first member (18) with respect to the second member. The compensation system comprises a compensating disc (68) that rotates as one with a hub (50) screwed around the movable support (14), a measurement disc (80) mounted on the movable support (14) via a freewheel mechanism (76) and at least one energy-storing spring (74) inserted between the compensating disc (68) and the measurement disc (80) so that the memorizing of the degree of wear of the component parts is materialized in the relative angular position of the measurement disc (80) with respect to the movable support (14).

Abstract: A clamp mechanism for a workpiece having an oblique surface is provided. The clamp mechanism includes a base, a fixing member, and a locking assembly. The base includes a main body, a pivot shaft, and two holding portions on the main body which are away from the pivot shaft, and each holding portion defines a curved sliding slit extending around the pivot shaft. The locking assembly includes a locking member and an engaging member engaging with the locking member. The locking member passes through and slides along the sliding slits of the holding portions of the base. One end of the fixing member is rotatably connected to the base, and the locking member passes through the other end of the fixing member.

Abstract: A multi-station machine vise that is disclosed herein that utilizes soft jaws, which are symmetrical and machineable on all four sides. The jaws being identical in size and configuration makes them interchangeable/usable on any vise station, which results in reduced operating costs. The movable jaws are precisely located and fastened to the vise utilizing a jaw carrier, which incorporates a pull-down action to eliminate jaw lift. The jaw carrier includes a downwardly positioned wedge design that engages a corresponding wedge on a slide that moves the jaw carrier and the jaw. Incorporating the pull-down mechanism into the jaw carrier disposed between and slide and the jaw allows for simplifying the design and manufacture of the jaws.

Abstract: A material-saving and energy-saving multifunctional bench clamp includes a movable clamp body, a fixed clamp body and a transmission pair of a screw and a nut. The fixed clamp body is provided with a holding accessory and a retractable locating-guiding device. The movable clamp body is made up of a left part and a right part. The left part is provided with two work heads, each head includes holding members, which form a holding assembly together with the accessories installed on the fixed clamp body. At least two axially locating-guiding key grooves are shaped on the cylinder guide rail of the right part and positioned the corresponding work heads of the left part. The bench clamp not only reduces processing surfaces and costs, but also saves about 30% material of clamper body under the same standard size and rated clamp force by comparison to the old multifunctional bench clamp.

Abstract: A tool for installation of a pipe connection that has a pipe connection sleeve and two pinch collets that can be pressed onto it. The tool has two clamping jaws oriented parallel to one another, which can move relative to one another. Each jaw has at least one gripping section configured in U shape. The tool has a threaded spindle that connects the clamping jaws with one another, by means of which the clamping jaws can be moved towards one another during installation of the pipe connection.

Abstract: A clamp device (30) includes a plurality of arms (32, 34). One of the arms supports a securing member (36). The other arm includes a curvilinear surface (40) that directly engages a curved wall of an article at a location in line with a centerline of the securing member. The curvilinear surface (40) allows for the clamp device to reliably engage an article having a curved wall for a lifting operation. One example use of a disclosed example device is for lifting tubes associated with a hydraulic elevator system.

Abstract: Clamp for key cutting machines, of the type comprising a pair of jaws (6, 10) mounted on a single pin (2) fixed to the machine structure and associated with a knob (22) screwable on a threaded portion of said pin (2) and acting in the sense of causing said jaws to forcedly approach each other, against the elastic reaction of a spring (14) tending to repel them, and to retain a key positioned between them, characterised by comprising a friction type overload clutch (18, 20, 30) interposed between said knob (22) and said pin (2).

Abstract: A vice (11) has two clamping jaws (15) for clamping workpieces. Between the clamping jaws (15), there is a tensioning device (18) for multi-part chuck heads that operates in a downward direction. Both the clamping jaws (15) and the tensioning device (18) are simultaneously activated by means of a single activation device (21, 30, 31, 37), wherein the activation device has two levers (21). On the one hand, these levers are pressed apart at one end, while on the other hand, they have a projection (24) that engages with a coupling pipe (25) for synchronized movement. The coupling pipe (25) is used to activate the tensioning device (18).

Abstract: The clamping or gripping tool comprises a first member (18) and a second member which are capable of relative movement under the action of a drive system of the screw-nut type, the said nut being incapable of translational movement relative to the first member (18), and a compensation system (46) inserted between the first member (18) and a movable support (14) secured to the nut (12) to reset the position of this first member (18) with respect to the second member. The compensation system comprises a compensating disc (68) that rotates as one with a hub (50) screwed around the movable support (14), a measurement disc (80) mounted on the movable support (14) via a freewheel mechanism (76) and at least one energy-storing spring (74) inserted between the compensating disc (68) and the measurement disc (80) so that the memorizing of the degree of wear of the component parts is materialized in the relative angular position of the measurement disc (80) with respect to the movable support (14).

Abstract: An assembly includes a fixture including an opening shaped to receive a portion of a turbine engine component. A non-metallic cover is placed over at least a portion of the fixture. The cover facilitates reducing metal to metal contact of the fixture and the turbine engine component when the turbine engine component is installed in the fixture, and facilitates reducing scratching of the turbine engine component.

Abstract: A tile retaining device that secures a tile or other work piece for cutting is disclosed. The tile retaining device can be used in combination with a circular saw, a wet saw, a band saw, or any other type of mechanical cutting or manipulating device. The tile retaining device secures a tile and provides additional surface area for a user to grasp during the cutting process, which can aid in manually manipulating the work piece through a mechanical cutting or manipulating device. The tile retaining device can also provide cutting guides, and can be adaptable to a variety of shapes and sizes of tiles.

Abstract: A workpiece holding device comprising a frame having a bottom surface; a clamping device securable to the frame; and an aligning mechanism for aligning the clamping device in a substantially straight line adjacent to a saw is provided. In one embodiment, the aligning mechanism is a miter track securable to the bottom surface of the frame, the miter track adapted to fit within a miter slot located on the table. In one embodiment, the device can also be used as a fence. A conventional saw, such as a stationary and upright band saw can now be converted into a handy and portable sawmill using one of the devices described herein as an accessory, without the need to make any alterations to the saw or saw table. Users can now, for the first time, hold very short (less than about one (1) ft) and small diameter (down to about one (1) inch) logs in the device described herein and slice them into lumber without causing splitting of the log.

Abstract: The subject of the invention is glazing which incorporates at least one electrically controllable system having variable optical and/or energy properties, especially in the form of a system comprising one or more reversible-insertion materials of the electrochromic-system type, in the form of an optical-valve or viologen-based system or in the form of a liquid-crystal or cholesteric-gel system. This glazing also includes at least one means for adjusting the optical appearance conferred on the said glazing by the said system, these means comprising at least one coating having antireflection properties in the visible.

Abstract: The invention relates to a toggle lever clamping device, specifically, for use in vehicle body manufacturing in the automobile industry, wherein the rod acting as a piston rod is provided at its end section facing a toggle joint system with a thread by which the rod may be screwed a greater or lesser distance within a sleeve-like component of a linkage element, specifically, a fork head, in order to change the opening angle of a clamping arm. Adjustment of the opening angle may be effected without disassembling the toggle lever clamping device, specifically, for example, by inserting a tool, especially a screwdriver, through a hole in the base cover so as to rotate the piston rod left or right about its longitudinal axis in order to adjust the opening angle. Undesirable rotation is prevented by using a guide plate. A ball screw may also be employed in place of the thread.

Abstract: A vise for holding a work piece in position on an EDM machine includes a main plate for attachment to the rail or ledge of the EDM machine, and the main plate supports a vise that holds the work piece in position during the machining process. The vise includes a movable jaw adjustable in the x direction and a solid jaw for clamping and holding the work piece therebetween. Both jaws include undercuts adjacent the work area of the vise, and the jaws define a clearance pocket so that the discharge wire can be moved to the work position adjacent the work piece. The solid jaw also provides a fixed and repeatable locating surface for the discharge wire so that the discharge wire can use the solid jaw to establish a reference point wherein the discharge wire touches off the solid jaw in order to move the discharge wire to the work position.

Abstract: The present invention provides a method of manufacture capable of manufacturing a repulsion magnetic circuit for a speaker with good production efficiency and in a stabilized manner and an apparatus for use in the manufacture. A position of abutment between first magnetic block circuit attached to lower jig (102) and second magnetic circuit block attached to upper jig (105) is detected by detection of a load current of servomotor (103). A pressing time for achieving adhesion is established by the number of pulses from encoder directly coupled with servomotor (103).

Abstract: A chuck device includes a first worm gear mechanism linked to a second worm wheel mechanism which operate in tandem to receive, increase, and redirect an input rotational drive force. A conversion mechanism receives and further augments the force from the second worm gear mechanism and converts the drive force into an axial force. The conversion mechanism transfers the axial force symmetrically to a pair of claw members. The claw members move relative to each other and firmly secure a work item to the chuck device.

Abstract: The subject of the invention is glazing which incorporates at least one electrically controllable system having variable optical and/or energy properties, especially in the form of a system comprising one or more reversible-insertion materials of the electrochromic-system type, in the form of an optical-valve or viologen-based system or in the form of a liquid-crystal or cholesteric-gel system. This glazing also includes at least one means for adjusting the optical appearance conferred on the said glazing by the said system, these means comprising at least one coating having antireflection properties in the visible.

Abstract: An electrically powered clamp has a housing, a motor attached to the housing, a ball screw driven by the motor via a belt, and a linkage driven at one end by the ball screw such that the linkage rotates an output shaft attached to the other end of the linkage. The motor and belt drive the ball screw between a fully extended position to rotate the shaft to a clamped position, and a fully retracted position to rotate the shaft to an unclamped position. A built-in computer monitors and controls the clamp. The clamp can also be controlled and monitored by a remote pendant. Indicator lights on the housing and remote pendant convey clamp status information. The clamp is programmable and can memorize the clamped and unclamped positions. The clamp uses velocity and position feedback to determine appropriate drive mode. Torque monitors and timers determine if the clamp becomes stuck.

Abstract: The vice device includes a vice holder 24 composed of two side parts connected together at a given angle and, in these two side parts of the vice holder 24, there are respectively formed two holes 24a, 24b which extend at right angles to their associated side parts. By selectively switching these holes 24a, 24b over to each other, the pressing direction of a vice plate 26 can be changed.

Abstract: A jig for assembling a frame. The jig may be for woodworking and the frame may be for a picture. The jig comprises a top plate having a first and second opening. The top plate also contains an elongated slot. A bottom plate is laterally arranged below the top plate. The bottom plate contains a third and fourth opening. The bottom plate also contains an aligned elongated slot. A first guide bar and second guide bar are disposed through the openings in the plates, and fastener members, operatively associated with the first and second guide bar, is included for fastening the top plate and the bottom plate together. The jig may further comprise a guide member disposed between the top and bottom plate. The guide member has a first and second side that form a right angle so that the two inserted pieces of wood stock of the frame form a ninety degree corner.

Abstract: A spring or springs are provided between driving-side members that operate together with an output shaft of a stepping motor, and driven-side members that operate together with a jaw member. Thereby, when the jaw members performs opening motion, the driving-side members and the driven-side member directly engage with each other, thereby allowing a driving force to be transmitted directly from the output shaft to the jaw members. When the jaw members performs workpiece-holding operation, the driving-side members and the driven-side member engage each other via the spring or springs, thereby allowing the driving force to be elastically transmitted from the output shaft to the jaw members via the spring or the springs. In this configuration, when the workpiece-holding operation is performed by the jaw members, the stepping motor is controlled so as to over-rotate in a buffered manner.

Abstract: A vise comprises a base member, a fixed end member having a fixed and jaw thereon, and a movable end member having a movable end jaw thereon. The movable end jaw and the fixed end jaw define a space therebetween which can be increased or decreased by movement of the movable end member away from or towards the fixed end member. Fastening means are provided for respectively connecting the fixed end jaw to the fixed end member and for connecting the movable end jaw to the movable end member. The fastening means have receiving means whereby an attachment jaw can be releasably connected to at least one of the fixed end jaw and the movable end jaw.

Abstract: A clamp is provided that has a pair of clamp bodies which each have an inner surface. The inner surfaces of each clamp body are oriented to face one another in a spaced parallel relationship. A pair of parallel scissors linkages are coupled to the device that operate to move the clamp bodies in parallel relation relative to one another. Each scissors linkage extends from one side surface of one clamp body to a corresponding side surface of the other clamp body. A threaded rod is coupled to the pair of scissors linkages between the clamp bodies and is oriented with its axis of rotation parallel to the inner surfaces of the clamp bodies. The threaded rod is operable to move the clamp bodies either towards one another or away from one another in spaced parallel relation by rotation of the rod. By operation of the rod, the device may be used as either a clamping device or an expansion device.