Abstract: A portable handheld device for introducing an external profile into a longitudinal workpiece by noncutting shaping includes a locking element and a profiling tool having a pitchless profile disposed opposite the locking element and disposable at an adjustable angle as a function of a desired lead angle of the external profile within a force transmission plane, wherein the workpiece is disposable and removable between the profiling tool and the locking element, and wherein the profile tool and the locking element are configured to execute a feed movement relative to one another and to be adjustable to a neutral position.

Abstract: A key clamping device includes a first key clamp, a second key clamp and a rotational device connected to the first and second key clamps. The rotational device may facilitate rotation of the first and second key clamps.

Abstract: A support device (2) is provided for supporting one or more items (4) in use. The support device includes at least first and second clamping members (6, 8). The clamping members move relative to each other to allow the members to be moved between clamped and unclamped positions. Each clamping member has at least one clamping surface (26, 24) defined thereon, The at least first and second clamping members are arranged with a space (30) defined between the clamping surfaces to allow the one or more items (4) to be located in said space in use and to be clamped therebetween in said clamped position. The support device further includes adjustment means for allowing the space between the clamping surfaces to be adjusted in use. The adjustment means includes user actuation means (231, 233) and actuation of said actuation means causes at least one of said at least first and second clamping members to move relative to the other of said at least first and second clamping members.

Abstract: The invention relates to a drive apparatus (10) for the linear movement of a processing tool with respect to a workpiece, having a tool holder (18) which is fixed on a carriage (16) and is intended for the fastening of the processing tool, having a stationary guide device (12) in which the carriage (16) is guided such that it can be displaced in a vertically linear manner, and having a drive device (42) with a first force transmission means (46) which, in an engaged position, engages with a second force transmission means (40) connected to the carriage (16) in order to move the carriage (16). According to the invention, it is provided that the drive device (42) is mounted in the guide device (12) such that it can be moved between a release position, in which the force transmission means (40, 46) do not engage with one another, and the engaged position in such a way that the gravitational force of the drive device (42) causes a movement from the release position into the engaged position.

Abstract: The present invention generally relates to a ring assembly that may be used in an etching or other plasma processing chamber. The ring assembly generally includes an inner ring and an outer ring disposed radially outward of the inner ring. The inner ring will correspond to the location where the majority of erosion occurs during use. This inner ring can be flipped and reused until both sides have eroded beyond their service life. Collectively, the two rings generally have the shape of a single piece ring, but the service life of the ring assembly is longer than a conventional single piece ring.

Abstract: A mounting device for attaching a vise to a work surface so that the vise can be held in a position perpendicular to the work surface. The mounting device has a base having a surface for receiving the vise and an upright section that is perpendicular to the base. The mounting device further has a plurality of bolts or clamps that are used to removably secure the vise to the mounting device and also to secure the mounting device to the work surface.

Abstract: An assembly jig for a radial roller bearing comprises a retaining structure having a plurality of axially-projecting projections configured to retain a plurality of roller bodies disposed in a ring-shape during a bearing assembly process. The roller bodies are supportable in a first radial direction on a first component and each roller body contacts two adjacent projections in a second radial direction, which is opposite of the first radial direction. The projections are configured to press the roller bodies against the first component and such that a portion of the roller bodies projects past the projections in the second radial direction. The assembly jig is removable from the roller bearing in the axial direction after final assembly of the roller bearing.

Abstract: An apparatus for clamping packaging material may include a packaging material holder. The packaging material holder may include a first jaw, a second jaw, opposing the first jaw, and a jaw opening between the first and second jaws. The jaw opening may be configured to receive a portion of packaging material. The packaging material holder may include an inflatable structure configured to fill at least a portion of the opening. The apparatus also may include a packaging material insertion tool configured to insert the portion of packaging material into the jaw opening for clamping.

Abstract: A multiple vise system comprising at least two vise heads, each vise head comprising two jaws and a tightening screw and also comprising a supporting structure. The supporting structure is configured to support each vise head and allows the position of the vise heads to be adjusted according to at least two degrees of freedom with respect to each other. Position adjustment is achieved by means of track and slots mechanisms, swivels and telescoping poles. A number of secondary clamps are included to hold specially shaped objects such as printed circuit boards and to hold objects too large to be held by a vise head.

Abstract: A case clamp is used to properly align two or more cabinet sides and/or gable ends, such as those of European-style cabinet units. The clamp comprises a frame with an upper jaw, a lower jaw, and an alignment wall connected to the upper and lower jaws. The clamp further includes an upper engagement member associated with the upper jaw for movement in a first direction and a side engagement member associated with the lower jaw for movement in a second direction generally perpendicular to the first direction. Corners of the workpieces are placed adjacent to each other and the clamp is applied to the corners. The engagement members are advanced to press the corners into alignment with each other. A surface of the clamp frame also provides an alignment function, resulting in three-dimensional alignment of the workpieces.

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 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: A tool for servicing a fuel dispensing nozzle, said tool comprising a substantially semicircular base plate with two uprights protruding from the top to receive a fuel pump nozzle therein; said base plate being formed to fit on the mouth of a bucket and substantially cover the mouth of said bucket, while leaving open a portion of the bucket; said base plate having on its bottom surface protruding guides to ensure a snug fit on the mouth of said bucket; so that a fuel dispensing nozzle may be easily secured for separation from a hose and residual fuel may be easily drained from said nozzle and said hose.

Abstract: A device for the temporary fixing or manipulation of objects including a first head with a front active face and a rear active face and a second head with a front active face and a rear active face. The front and rear active faces of the first head are movable relative to one another and the front and rear active faces of the second head are movable relative to one another. The rear active face of the first head is immovably connected to the front active face of the second head. The device also includes a force mechanism for introducing an active force to the first and second heads.

Abstract: A fixture includes a holding apparatus, a receiving block, and an attachment rod. The holding apparatus defines a through hole. The receiving block is mounted on the holding apparatus. A receiving opening is defined in the receiving block. The receiving opening is aligned with the through hole. An attachment rod includes a body which includes ferromagnetic materials. The body is configured to be received in the through hole.

Abstract: An apparatus for holding a measurement object, particularly a formed sheet metal component of a vehicle body, in a reference position, comprises at least one carrier which holds the measurement object and has a carrier head that can be placed against the measurement object. The carrier comprises a plurality of carrier heads which can optionally be moved, relative to the rest of the carrier, into contact positions and the carrier heads can be pivoted about an axis.

Abstract: A pipe adjustment tool for use in aligning the confronting ends of a pair of pipe sections having a joint therebetween provides a frame having a seating surface for acting against an exterior surface of a pipe section. The seating surface being disposed at a 45-degree angle relative to a threaded bore of the frame. A flexible clamping member is attached to the frame at one end and is a of length to substantially encircle the pipe section. The opposite end of the clamping member is received and secured by a retainer. The retainer and the frame are connected together by an articulated joint formed by a ball-shaped end of a threaded bolt extending through frame and a ball-shaped socket in the retainer. The retainer and frame are movably relative to each other by operating the threaded bolt to provide tension in the clamping member about the pipe section.

Abstract: A device for holding a workpiece, the device comprising a base, a first jaw member, a movable jaw member, and features which allow the movable jaw member to be moved in large increments relative to the first jaw member in addition to features which allow the movable jaw member to be moved in smaller increments. The device can include a drive member operably engaged with the base and the movable jaw member such that the operation of the drive member can move the movable jaw member in small increments. The movable jaw member can include a connection member which can operatively engage the movable jaw member with the drive member. The connection member can be moved between first and second positions to disengage the movable jaw member from the drive member such that the movable jaw member can be slid relative to the first jaw member in large increments.

Abstract: The present invention relates to a workpiece holding device (101, 201) comprising a substantially spherical ball (107, 207) with means for releasably retaining a workpiece (901), a socket (102, 202) with a first ball-receiving surface (105, 205) and means for mounting said socket (102, 202) on a worktable (905), and means for releasably clamping said ball (107, 207) against said first ball-receiving surface (105, 205). The first ball-receiving surface (105, 205) is shaped on a ball-receiving element (104, 204) mounted moveable, within said socket (102, 202), along at least one axis in a plane substantially perpendicular to its clamping force. The invention also relates to a workpiece holding system comprising three workpiece holding devices (101, 201, 301), as well as to a method for using this workpiece holding system.

Abstract: A device (10) for the on-site fitting and extraction of pivot pins of large chain links, which include an alternating sequence of external links and internal links, each internal link including two parallel side pieces pierced at their ends, joined together at the ends by a tubular spacer, and articulated at the ends of the side pieces of the internal links on the pierced ends of the parallel side pieces of two consecutive external links via pivot pins, of the type which includes at least one cylinder (44) which is intended to selectively stress a pivot pin or a side piece of an external link in order to insert the pin or extract the pin, characterized in that it includes a pair of portable cylinder supports (46), supporting two pivoting cylinders (44), synchronized in displacement, and a control device (48) common to both cylinders (44).

Abstract: A gauge and frame for a portable sawmill to make wooden box culvert has a frame adapted to receive the portable sawmill, the frame includes a pair of spaced guide members. Each of the guide member includes a worm screw member adapted to linearly move a retainer member, a holding member adapted to orient the retainer member at a desired angle, and an angle selecting member adapted to move the retainer member A beam rotating member rotatably attached to the frame and located between the guide members, the beam rotating member including a support member adapted to hold wooden beams, and a handle member used for rotating the support member in a plurality of axes, such that wooden beams can be manipulated and held in desired orientations and thereby cut in chosen angles and shapes by a ribbon saw of the sawmill.

Abstract: An opener and a buffer table for a test handler are disclosed. The opener includes an opening plate, a plurality of pin blocks forming pairs, and at least one or more interval retaining apparatus for retaining an interval between the pin blocks forming a pair. Each of the pin blocks is movably coupled to the opening plate, and includes opening pins for releasing a holding state of a holding apparatus that holds semiconductor devices in a carrier board. Although semiconductor devices to be tested are altered in size and a carrier board loading with the semiconductor devices is thus replaced, the opener does not need to be replaced, thereby reducing the replacement cost and the waste of resources.

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 drawer front jig with a base plate, a drawer front stop bar, a drawer box positioning bracket assembly, a rail and a first and second drawer box stop bar assembly. The drawer box stop bars each include an adjustment slot. The rail is attached to the top of the base plate. The drawer box stop bars are is held at right angles to the rail. The rail has longitudinal T shaped slots along its top and side surfaces. The bar and bracket assemblies are held onto the rail by lock lever mechanisms. The drawer front stop bar is held in place to the inner facing wall of the rail. When a person places a drawer front against the rail and places the drawer box on the drawer front, the jig helps the drawer front and drawer box to be accurately positioned so that they can be joined together in a standard way.

Abstract: A positioning fixture assembly includes a support member, a first clamping member, and a second clamping member. The support member includes a substantially cylindrical connecting portion and a supporting portion. A number of receiving grooves are defined in the connecting portion. The supporting portion includes a first surface. The first clamping member defines a first receiving slot and includes a first mounting surface and a first resisting surface. At least one projection projects from the bottom surface of the receiving slot. The connecting portion is received in the first and second receiving slots and is clamped by the first and second clamping members. The at least one projection is selectively received in the receiving grooves so that an angle is defined between the first surface and the first mounting surface.

Abstract: A holding jig including, a tilt angle with respect to a plane of a holding surface of a holding target defined as a holding tilt angle: a first holding portion having a holding tilt face with the holding tilt angle; a second holding portion connected to the first holding portion so as to slide toward the holding tilt face along a plane substantially parallel to the holding surface; and an elastic holding portion provided at a position of the second holding portion facing the holding tilt face that is elastically deformed towards the holding surface by the holding tilt face while being abutted to the holding tilt face, when the second holding portion slides toward the holding tilt face, to press and hold the holding target.

Abstract: An expander includes a first head member, a rotating portion, a plurality of expanding members, and a tightening structure. The first head member and the rotating portion have conical faces corresponding to each other. The rotating portion has a threaded rod section which is screwed with the first head member. The expanding members are arranged around the two conical faces, and the expanding members tend to approach each other due to the tightening structure. When the rotating portion is rotated to approach the first head member, the expanding members are pushed outward to radially expand a tubular element. In addition, a plurality of restriction slots are formed on the conical face of the first head member, and each expanding member forms a corresponding rib slidably disposed in the restriction slot to improve stability.

Abstract: A tubular gripping apparatus has a jaw assembly that has a tubular-contacting surface at an end thereof, a drive yoke that has a tubular-contacting surface at an end thereof, an actuator connected to the drive yoke, and a locking mechanism interconnected to the drive yoke. The drive yoke is connected to the jaw assembly. The actuator moves the jaw assembly and the drive yoke such that the tubular-contacting surfaces thereof move radially inwardly for a substantially identical distance. The locking mechanism directs a load away from the actuator while the jaw assembly and the drive yoke grip the tubular. The locking mechanism has a cylinder yoke positioned around the piston-and-cylinder assembly, and a wedge assembly positioned adjacent the bearing bar and the cylinder yoke. The wedge assembly is suitable for contacting the cylinder yoke so as to prevent a movement of the cylinder yoke.

Abstract: A fixture assembly for retaining a workpiece during a coining process includes a mounting block. The workpiece includes an airfoil portion, a platform, and feet extending from the platform opposite the airfoil portion configured to engage a retention slot in a gas turbine engine, each foot defining a substantially arcuate engagement surface. The mounting block includes a first portion having a slot defined therein between opposite first and second lateral edges and having an exposed front face, first and second retaining structures positioned adjacent to the first and second lateral edges, respectively. Each of the first and second retaining structures overhangs the slot and defines an engagement surface facing the slot, such that during engagement of the workpiece the substantially arcuate engagement surfaces of the feet contact the engagement surfaces of the first and second retaining structures to provide a pivotable engagement.

Abstract: A pipe gripping apparatus has a first jaw with a pipe-contacting surface at one end thereof, a second jaw having a pipe-contacting surface at one end thereof, a tongue having a pipe-contacting surface at one end thereof, and an actuator connected to the first and second jaws and to the tongue. The actuator serves to move the first and second jaws and the tongue such that the pipe-contacting surfaces thereof move radially inwardly simultaneously for a substantially identical distance. A first link pivotally connects the tongue with the first jaw. A second link pivotally connects the tongue with the second jaw. The first and second links extend angularly outwardly from the tongue. The first and second pivot points of each jaw have a distance unequal to a distance between the first pivot point and pipe-contacting surface of each jaw. The pipe-contacting surfaces can be elastomeric pads, toothed dies, or rollers.

Abstract: The device is a U-shaped housing comprising slidable platform embodiments providing defined and directed platform movements toward the task of shaping a rotating workpiece substantially at 90 degrees and 180 degrees to the axis of rotation. The device provides for sliding surface planes configured to accept abrasive materials and implements at predetermined angles for the purpose of trimming imperfections and truing model car wheels and axles. As an alternative to more complex machine shop equipment, the child, applying sandpaper to the platform surfaces and a triangular file or rectangular file on platform insets is enabled to effectively direct an abrasive surface which is configured at 90 degrees and 180 degrees to the axis of rotation for the purpose of truing the model car wheel and axle. To further enhance the child's participation, the workpieces can effectively be manually rotated in the slidable platform abrasion workstation device.

Abstract: An apparatus and method to lift a carrier housing an object onto a secondary unit. The carrier is connected to the secondary unit, configured to rotate about an axis. A tether is provided with at least two branches on one end, and a single branch on a second end. The two branches are secured to the carrier in a spaced relationship, such that a pull of the single branch rotates the carrier about the axis and places the carrier on the base unit.

Abstract: A device for holding a workpiece, the device comprising a base, a first jaw member, a movable jaw member, and features which allow the movable jaw member to be moved in large increments relative to the first jaw member in addition to features which allow the movable jaw member to be moved in smaller increments. The device can include a drive member operably engaged with the base and the movable jaw member such that the operation of the drive member can move the movable jaw member in small increments. The movable jaw member can include a connection member, or claw, which can operatively engage the movable jaw member with the drive member. The connection member can be moved between first and second positions to disengage the movable jaw member from the drive member such that the movable jaw member can be slid relative to the first jaw member in large increments.

Abstract: In a wedge drive comprising a slider element receiving component, a movable slider element and a driver element, wherein sliding surfaces are provided between the slider element and the driver element, a dovetail-like or prism guide is provided between the slider element and the slider element receiving component. The slider element has a portion having a dovetail-like configuration.

Abstract: In a wave linear motion mechanism (4) of a holding mechanism (1), those portions of a flexible screw (14) where first and second male screws (32, 33) are formed are elliptically deformed by first and second wave generators (12, 13) installed on an input shaft (11), and the first and second male screws (32, 33) are respectively partially engaged with first and second female screws (42, 44) of first and second circular nuts (15, 16). First and second holding members (5, 6) are mounted on the first and second circular nuts (15, 16), respectively. When the input shaft (11) is rotated by a motor (3), the first and second holding members (5, 6) are opened or closed depending on the rotation direction to release or hold an object (W).

Abstract: A clamp comprising a bar supporting a movable jaw having a first support surface. The bar is slidably received in a jaw body and the jaw body supports a fixed jaw. A support is slidably disposed on the bar and has a second support surface that is coplanar with the first support surface such that the clamp can be supported on the first support surface and the second support surface on a surface. In one method of operating the clamp a work piece is positioned directly on the bar. In another method of operating the clamp the movable jaw is moved relative to the fixed jaw and is stopped by the engagement of the support with the body.

Abstract: A device for removing particles from a connecting rod includes a clamp for fixing a rod of a connecting rod disposed on a base plate, a vibration cylinder disposed to the clamp and a driving unit connected to the vibration cylinder for reciprocating a cap of the connecting rod according to driving of the vibration cylinder.

Abstract: A clamping device has several clamping element receptacles each with a clamping element held by the clamping element receptacle. The clamping element receptacles have an inclination running obliquely to a clamping direction of the clamping device and by means of which the clamping element is guided. The clamping element has a clamping jaw support and the clamping jaw is connectable to the clamping jaw support. The clamping jaw engages in an undercut provided on the clamping jaw support and is additionally fixed by means of a positive fixing means to the clamping jaw support when it is connected to the clamping jaw support.

Abstract: A two jaw vise having a base extending in a longitudinal direction between two ends, a central fixed block and opposing jaws on either side of the central block. The opposing jaws being movable longitudinally and joined to the base for controlled movement longitudinally. The base including a base block extending longitudinally between the first and second ends and including first and second longitudinally extending rails. The first and second rails extending parallel to the base block and being spaced from the base block. The first and second rails at least partially forming the controlled movement of the jaws. The base further including first and second pluralities of vertically extending columns extending between the base block and the first and second rails, respectively. The base including at least one gap between adjacent columns.

Abstract: A pen barrel assembling device includes a base with a first frame and a second frame fixed to the top of two ends of the base. A movable rod extends through the first frame and fixed to the first frame by a first fixing bolt. An end part is connected to the first end of the movable rod and the outer section is positioned in the end part. A push rod extends through the second frame and is movable toward the movable rod by pivoting a lever. The metal section is connected to the free end of the push rod. Multiple blocks are pivotably or slidably connected to the base and each block includes an engaging recess which is removably engaged with the movable rod.

Abstract: A plate pulling machine for a pressure filter, including a base, a support, a pair of plate-removing ears, a pair of plate-pulling ears, a plate-removing support table, a plate-pulling support table, a bracket for a bolt sleeve, a bolt sleeve, and a bolt. The support is fixed on upper end surface of the base. The plate-removing ears and the plate-pulling ears are corresponding to each other, and are disposed on both sides of the top of the support. The plate-removing support table is disposed on the plate-removing ears via a plate-removing rotating shaft. The plate-removing support table is supported via a plate-removing spring. The plate-pulling support table is disposed on the plate-pulling ears via a plate-pulling rotating shaft. The plate-pulling support table is supported via a plate-pulling spring. The bracket for a bolt sleeve is disposed on outside of the plate-pulling support table on the support.

Abstract: The clamping fixture (1) consists of a workpiece pallet (2) and an actuator (27). The workpiece pallet (2) comprises at least two clamping jaws (4,5) for clamping in place a workpiece, while the actuator (27) is provided for opening and closing the clamping jaws (4,5). By means of the actuator (27) the clamping jaws (4,5) are material-elastically excursionable to the extent that a workpiece, after release of the actuator (27), can be locked in place by the material-elastic restoring force of the clamping jaws (4,5). Preferably the workpiece pallet (2) comprises a main body (3) provided with a slot (6) defined on both sides by the clamping jaws (4,5). The clamping jaws (4,5) are material-elastic excursionable by means of the actuator (27) transversely to the slot (6). The clamping jaws (4,5) are provided with fitted jaws (13, 14) which in relation to each clamping jaw (4,5) can be shifted transversely to the slot (6).

Abstract: A jig (1) for cutting a brick or bricks, comprises a base (3) and alignment means (7, 9, 11, 13) arranged such that the brick or bricks can be laid out on the base (3) with part of the or each brick in contact with the alignment means (7, 9, 11, 13). The jig (1) further comprises guide means (35) operative to define a line to be cut along the brick or bricks, the brick or bricks being at least partially restrained and aligned by the alignment means (7, 9, 11, 13) in use such that a cutter can be guided by the guide means (35) to cut the brick or bricks along the defined line to be cut. The guide means (35) comprises an elongate guide element (43) mounted on a chassis, the chassis being adjustably mounted on the jig (1), the chassis comprising a plurality of spaced apart slots, the chassis being adjustably mounted on at least one finger (37) upstanding from the base (3) to enable the position of the chassis relative to the base (3) to be adjusted.

Abstract: A jig positioning system for use on a truss assembly table. The puck assembly 108 has a puck 109 positioned at least partially above the table top 105 with the puck 109 connected to a carriage 110 positioned at least partially below the table top. The puck assembly 108 moves along slots 118 in the table top 105. A threaded rod 102 extends through a threaded passageway 103 in the carriage 110, so, when the threaded rod rotates, the puck assembly moves along a corresponding slot in the table. A rod support member 116 extends along the length of the threaded rod 102 and is positioned below the threaded rod 102, the support member 116 contacting the carriage and, thereby, preventing the threaded rod from excessive sagging. A debris path is provided along both sides of the support member 116.

Abstract: According to one embodiment, an apparatus for tilting objects includes a lower portion which comprises at least one foot plate and at least three supporting walls. A height of the top of the lower portion is about the height of a supporting structure. The apparatus also includes an upper portion which comprises a substantially flat surface and at least one connector for coupling a node carrier to the upper portion. The upper portion is coupled to the lower portion, and the upper portion tilts relative to the lower portion between an angle about horizontal to an angle about vertical.

Abstract: A clamping device, for detaching a universal coupling of a remote controlled car shock absorber, comprises a horizontal roller, a holder, and a mobile element; wherein the horizontal roller is pivotally connected to the holder for rotation purpose; the mobile element is connected with the holder such that the mobile element can clamp and hold the axis of the shock absorber, and engage the universal coupling of the shock absorber into the engagement socket of the horizontal roller; by way of the rotation of the horizontal roller, the invention can allow the user to easily detach or assemble the universal coupling and adjust the coupling depth of the universal coupling via screwing without impairing the axis of the shock absorber during detaching, assembling or adjusting the universal coupling.

Abstract: A boiler wall tube tool comprises a pair of opposed clamp members, each one of the clamp members having a nose intermediately disposed between a recess and a planar or inclined wall, and an aperture formed centrally through the clamp member. The clamp members oriented so that the recess of one of the clamp members is substantially aligned with the planar wall of the remaining clamp member for engaging a boiler wall tube therebetween. The aperture of one clamp member is substantially aligned with the aperture of the remaining clamp member. Means for moving the clamp members toward each other for secure clamping engagement of the tubes for maintaining the clamp members in alignment while connecting the ends of the tubes by welding is also provided.

Abstract: A device for holding a workpiece, the device comprising, in one form, a base and a jaw member, wherein the jaw member includes a detachable jaw plate. The jaw member can further include a lock assembly which can attach or affix the jaw plate to the jaw member. In at least one embodiment, the lock assembly can include a cam, or lock, configured to pull the jaw plate toward the jaw member and/or secure the jaw plate against the jaw member. In certain embodiments, the lock assembly can include a slide which can be moved by an actuator such that the slide can engage the jaw plate and move the jaw plate into position. In at least one such embodiment, the slide can pull the jaw plate against the jaw member and, in addition, pull the jaw plate downwardly against a workpiece support surface.

Abstract: A ferris wheel workpiece positioner may include a base and a workpiece holder operatively connected to the base and configured to be rotated about a central axis. The ferris wheel workpiece positioner may also include a first-side set of rails operatively connected to a first side of the workpiece holder and a second-side set of rails operatively connected to a second side of the workpiece holder. The ferris wheel workpiece positioner may further include a first-side set of workpiece supports including at least one first-side support operatively connected to the first-side set of rails, and a second-side set of workpiece supports including at least one second-side support operatively connected to the second-side set of rails.

Abstract: A test fixture for making an electrical connection with electrical contacts of a circuit board includes jaws made of conductive material. The jaws may be monolithic pieces of copper, with a pair of sections that pivot along a thin hinged portion at one end. The jaws float freely within a test fixture housing, allowing the jaws to reposition themselves within the housing to adjust to variations in position of the electrical contacts. A clamping mechanism pushes free ends of the jaw sections toward one another, causing engagement between the sections and the electrical contacts. The test fixture provides a way to provide good contact area and good contact pressure, allowing large-current flows between the jaws and the electrical contacts, while at the same time providing substantially no force on the circuit board in a direction perpendicular to the circuit board.