Abstract: A work setting apparatus includes a lower table 15, an upper table 17, and a work holding unit 19 provided with a plurality of work holders 25 each having an adhesive to hold a work. A work setting method sets a second work W2 held by the work holders 25 onto a first work W1 set on the lower table 17. A work holder removing method removes the work holders 25 from the second work W2 set on the first work W1 by vibrating the first and second works W1 and W2 on the lower table 15.

Abstract: An apparatus for separating from a mandrel a shell snugly surrounding the mandrel has a base, a frame fixed on the base, and a holder on the base forward of the frame and adapted to support the shell surrounding the mandrel with an end of the mandrel juxtaposed with the frame. At least two stripper jaws on the frame can move radially of the mandrel of the shell on the frame between outer positions spaced radially outward from the shell and inner positions engageable with the shell. An extractor slide can shift longitudinally on the base rearward of the frame and carries a gripper extendable through the frame to grasp the end of the mandrel. The slide can shift the gripper axially away from the frame to brace the shell axially through the jaws against the frame and pull the mandrel out of the shell.

Abstract: An apparatus for removing and installing a gear reducer from an assembly, such as a Fanuc robot, is provided. The apparatus includes a bracket that is attached to a casing of the robot in a vicinity of a position where the gear reducer is to be removed or installed. The bracket provides a sleeve that is disposed so as to be spaced from and aligned with the gear reducer when the bracket is mounted to the casing. A guide bearing is slidably received through the sleeve and has a first end that attaches to the gear reducer via an attachment assembly. The gear reducer can then be removed by pulling the guide bearing away from the robot or installed by pushing the guide bearing toward the robot.

Abstract: A removal tool includes a staking unit configured to deform a circlip located at a bore of an apparatus when the removal tool is pushed into the bore, and a spring fork unit configured to push a ferrule ring located at the bore when the removal tool is pushed into the bore.

Abstract: A system and method are provided for detachably mounting different types of infant carriers on a support structure. The system includes a mounting platform provided on a frame of the support structure. The mounting platform includes a first and second coupling structure. The first coupling structure is adapted to engage with a first fastener structure of a first infant carrier, whereas the second coupling structure is adapted to engage with a second fastener structure of a second infant carrier. The mounting platform also includes a rotary support base that can be rotated relative to the frame between a first position and a second position. In the first position, the support base enables engagement of the first coupling structure with the first fastener structure. In the second position, the support structure enables engagement of the second coupling structure with the second fastener structure.

Abstract: A pin tool assembly for forcibly removing a first type of retaining pin from digging teeth arranged in side-by-side relation across a forward edge of a digging implement. The pin tool assembly includes a tool defining a blind recess laterally disposed to one side of the tool. The tool assembly further includes an elongated extractor pin having an enlarged head portion and a shank portion extending from the head portion. Cooperating instrumentalities maintain and position the extractor pin relative the tool such that, when a force is applied to the tool, the free end of the shank portion of the pin engages with and forcibly extracts the retaining pin from the digging tooth. Preferably, the tool further defines a plurality of openings for snugly accommodating a series of retaining pins therein.

Abstract: The invention relates to a screw having a screw head, a screw end which lies opposite the screw head, and an external screw threading for the purpose of screwing the screw into a material, wherein the screw has at least two parts which are connected to each other via a detachable connection, wherein the screw head is arranged on another part than the external screw threading and the screw end, as well as a tool for the complete removal of such a screw.

Abstract: A pin removal assembly for use with an upper block of a crane includes a sheave support and a pin support. The upper block includes a frame, a plurality of sheaves, and a removable sheave pin that defines and axis of rotation for the sheaves and supports the sheaves within the frame. The pin removal assembly includes a sheave support mountable to the frame of the upper block and a pin support mountable to the frame of the upper block. The pin support is configured to support the sheave pin when the sheave pin is removed from the upper block.

Abstract: Methods and systems for maintaining a machine using an in-situ vehicle (IV) is provided. The IV may be used with a machine that includes a work-piece and an interference body positioned proximate a surface of the work-piece such that a relatively small gap extends between the work-piece and the interference body. The method includes transporting the IV from external to the machine into the gap, positioning the IV in the gap such that at least a portion of the IV circumscribes a work area of the work-piece, locking the IV between the work-piece and the interference body, and manipulating a tool coupled to the IV from external to the machine, the tool configured to transfer a component between the work-piece and a storage cassette on the IV.

Abstract: Disclosed is an assembling method for a timing system of an engine to wind a timing chain (30) around a sprocket (20) attached to a crankshaft (18) and a sprocket (24, 28) attached to a camshaft (22, 26).

Abstract: A device for removing of profiles cut out from mattresses of cellular material including at least one conveyor, onto which a mattress of cellular material is laid. The mattress is led towards a turn around device for bending the mattress. At the turn around device at least an adjustable gap for a brush, at least an adjustable back pressure member and at least an adjustable brush are provided. The member bends the mattress into the gap and the brush removes the cut out profiles from the bend in the mattress.

Abstract: A lightweight and portable service tool and method of use is provided for facilitating bushing replacement without removal of suspension from a vehicle. A tool end removably straddles the suspension and anchors the tool to the suspension. An actuator end, connected to the tool end, imparts a bushing jacking force along a common tool axis for extracting a bushing from, or installing a bushing into an eyelet of the suspension. The actuator end can form a jack or form a bore for receiving a portable jack as the source of the jacking force.

Abstract: The assembly method includes packaging of items for shipment and secures components of the assembly in a fashion and in the related position required for further assembly, as a unit, to an engine that is in the process of being assembled. The timed assembly arrives at the engine plant secured together such that it allows handling, at least in part, as a single component and with its parts arranged in the relative position required for proper timing and for securing to other components of the engine. The chain (44) is pinned between a tensioner pin (66) and the tensioner chain contacting surface (60) and between a guide pin (74) and the guide or snubber chain contacting surface (88). The tensioner is preferably pinned in a state of minimum extension.

Abstract: A device for assembling and disassembling an inner support of a vehicle tire, comprising a supporter, a fastening belt, a retracting device, a securing device, and a gear unit. The retracting device and the securing device are disposed on the supporter. One end of the fastening belt is connected to the retracting device, the other end of the fastening belt is connected to the securing device. The retracting device is connected to the gear unit. The device facilitates assembling and disassembling on demand and allows for a simple and fast disassembling process.

Abstract: A method and apparatus are present for removing a blind fastener from a structure. A first hole is drilled in a guide located around a center of a head of a core bolt in a body of the blind fastener to form a pilot hole. A second hole is drilled in the pilot hole in the head of the core bolt. The head of the core bolt is separated from the shaft of the core bolt. The core bolt is separated from the body. The core bolt is moved out of the body after the core bolt has been separated from the body. A head of the body is separated from a shaft of the body. The shaft of the body is moved out of the structure.

Abstract: A flexible HVAC duct is made with a support structure-containing duct liner, insulation layer, and reinforcing layer-containing vapor barrier. At least the duct liner and vapor barrier are constructed of polymer materials that enable them to be placed in the same recycling stream once the flexible HVAC duct is removed from its installed location. The insulation layer can also be made of a polymer material compatible with that used for the duct liner and vapor barrier so that the entire duct can be recycled once removed.

Abstract: A spark plug removal tool apparatus and method for a spark plug having components of an extended smooth spark arc producing terminal portion, an adjacent helical threaded portion, an adjacent hex drive, an adjacent insulator portion, and a terminal electrical interface extension. The tool apparatus includes a non rotating collet extension having a plurality of fingers to removably engage the electrical interface and an inner surrounding sidewall that threadably engages the collet, also an outer surrounding sidewall rotatably engaged to the inner surrounding sidewall not having one-way axial movement as between the inner and outer surrounding sidewalls, wherein the collet, inner, and outer surrounding sidewalls are all co-axial. Operationally, when the tool starts to unscrew the spark plug from an engine head, an axial non-rotating force is applied to the electrical interface extension that helps prevent separating damage between the spark plug components.

Abstract: The present invention relates to a retrievable pressure sensor for the in situ measurement of pressure of a process fluid in a pipe/chamber, and to a method for retrieving the pressure sensor. The pressure sensor comprises a pressure-transferring arrangement (2) which includes a device for sealing attachment in an opening in a wall of the pipe/chamber, a cavity (7) containing a pressure-transferring fluid, a first separation diaphragm (5) for separating between the process fluid (3) and the pressure-transferring fluid, and a second separation diaphragm (8a) defining an outer boundary of the cavity (7) containing the pressure-transferring fluid.

Abstract: A liner bolt (1) for securing a liner to a mill, the liner bolt (1) comprising a head (3) and a shank (4) extending therefrom, the shank (4) having an external thread thereon, and having a bore (5) therein extending from its free end. A removal pin (2) is adapted to be inserted into bore (5) when liner bolt (1) is to be removed from the mill. Removal pin (2) is adapted to be struck by a moil (14).

Abstract: A quick to connect and quick to disconnect fluid coupling includes a clip, a male stem having an annular clip groove adapted to receive the clip, a female port having a step groove adapted to receive the clip upon insertion of the stem into the port, and a sleeve slideably disposed about the stem adapted to abut the clip and minimize shuttling of the stem within the port. The sleeve may be biased toward the clip by a dust seal abutting a shoulder of the sleeve distal from a lead-in end of the sleeve abutting the clip. Also, the sleeve may radially retain the clip, compressed in an annular groove of the stem, and/or the sleeve abutting the clip may stabilize the clip and axially align the clip with the stem, for insertion of the stem into the port.

Abstract: An automated system for disassembling a roller rail assembly includes an actuation device configured to move the roller rail assembly in a disassembling direction. A guide bracket is arranged and configured to receive the roller rail assembly as the roller rail assembly is moved in the disassembling direction. The guide bracket allows movement of the roller rail assembly in the disassembling direction. A separator member is located downstream of the actuation device. The separator member being received by a housing member of the roller rail assembly and having a wide region that separates sidewalls of the housing member and releases roller wheels of the roller rail assembly as the roller rail assembly is moved past the separator member by the actuation device.

Abstract: Devices with non-binding linear slides include: (a) a device body and first and second spaced apart linear rails held in the device body; (b) first and second spaced apart (rail) pathways held in cooperating alignment with the rails in the body, a respective one engaged with a respective one of the first and second linear rails that define spaced apart contact points; and (c) a translating actuation (e.g., input) member held by the body in communication with the rails. The actuation (e.g., input) member has a configuration that can generate off-center loads associated with forces applied at different positions of the actuation (e.g., input) member. Only one pathway and rail pair guides linear movement for the first and second force positions to thereby inhibit frictional binding.

Abstract: The system of the present application is directed towards a shower liner system including a plurality of layers, each of the plurality of layers including a top portion, the top portion of each of the plurality of layers having a plurality of attachment points, a bottom portion and a line of perforation separating the top portion and the bottom portion, wherein a bottom portion of each of the plurality of layers can be removed without removing the top portion, and wherein the upper portion of each of the plurality of layers are fastened together. The method of the present application is directed towards a method of using a shower liner system.

Abstract: A rotatable power-plant case section comprises a web disposed between a first flange and a second flange. At least one rotary strut and at least one fixed support strut are attached to the first flange. The case section includes at least one lifting connector for applying a force to raise the rotatable power-plant case section and at least one rotating connector for applying a force to rotate the case section. A method for rotating a power-plant case section comprises attaching at least one rotary strut, at least one fixed support strut, at least one lifting connector, and at least one rotating connector to a power-plant case section, applying a force to the lifting connector so as to raise the case section, and applying a force to the rotating connector so as to rotate the case section to a desired orientation.

Abstract: A method for dechucking a substrate from an electrostatic chuck (ESC) in a plasma processing system is provided. The method includes flowing a first gas into a plasma chamber. The method also includes flowing a second gas to a backside of the substrate to create a high pressure buildup of the second gas under the backside. The method further includes reducing a flow of the second gas such that at least a portion is trapped under the substrate backside. The method yet also includes pumping out the plasma chamber to increase a pressure differential between a first pressure that exists under the backside of the substrate and a second pressure that exists in a region above the substrate, wherein the pressure differential enables the substrate to be lifted from the ESC. The method yet also includes removing the substrate from the ESC.

Abstract: A tool coupler assembly for a machine is disclosed. The tool coupler assembly may have a coupler frame, a first latch, a second latch, and a hydraulic actuator connected to move the second latch relative to the first latch and the coupler frame. The hydraulic actuator may have a first chamber, a second chamber, and a pressure valve with a check element movable to allow a flow of fluid into the first chamber based on a pressure of fluid in the first chamber, and a pressure regulating element movable to allow a flow of fluid out of the first chamber based on a pressure of fluid in the second chamber. The tool coupler assembly may additionally have a first pilot passage configured to communicate fluid from the second chamber with the pressure-regulating element, and a second pilot passage configured to communicate fluid from the first chamber with the pressure-regulating element.

Abstract: A nail removal tool in the form of an adapter for attachment to the drive socket of a rotary driver such as a rotary pneumatic impact driver. The adapter includes a drive shaft engagable with the chuck of the pneumatic driver, a cylindrical foot with a slot for receiving the body of a nail and a ramp for engaging under the head and lifting it to dislodge the nail from its embedded location. A coil spring serves as a flexible connection to provide proper presentation of cylindrical bit allowing wedging of the adapter beneath the head of a nail which is reluctant to be removed.

Abstract: An extension tooling apparatus can include a delivery portion and a control portion. The delivery portion can include a base element mountable to a fixed surface, an arm pivotably coupled to the base element, and a tool attachment coupled to a tool end of the arm. The control portion can include a shank, a tip member joined to a tip end of the shank, and a collar adjacent a distal end of the tip member. The collar can support the tool attachment of the delivery portion so that positioning of the tool attachment is controllable by movement of the shank. The extension tooling apparatus can be useful for manipulating nuts, bolts, and other hardware from a distance.

Abstract: A device for holding a bit for a tool, the bit to be disassembled and/or re-assembled when held, includes a housing to be secured to a stationary base and a clamping mechanism for releasably clamping the bit to the housing so that it may be disassembled and/or re-assembled, the clamping mechanism including a recess provided in the housing, a movable gripping element arranged inside the recess and having a first gripping area for engaging the bit part, and a stationary gripping element, the gripping element having a second gripping area for engaging a bit part, wherein the movable gripping element is configured to be moved between an open position wherein the stationary gripping element and the movable gripping element are spaced to allow to receive or to remove the bit part and a clamping position wherein the bit part is clamped between first and second gripping areas of the gripping elements.

Abstract: An apparatus and method for removing a shaft of a tool from a retainer. The apparatus comprises a first plate having a bore therethrough oriented to be parallel with an axis of the tool, a second annular u-shaped plate sized to bear against a first surface of the retainer and at least one connector extending between the first and second plates. The apparatus further comprises a clamping member received within the bore, adapted to be forced therethough so as to apply an axial compressive force to an end of the shaft from the bracket bearing against the first surface of the retainer. The method comprises securing a bracket to the retainer, applying an axial compressive force to an end of the shaft from the bracket bearing against a first surface of the retainer, applying heat to the retainer and applying an impact to the retainer.

Abstract: A permanent magnet rotating electrical machine capable of conducting a variable speed operation at high output in a wide range from low speed to high speed and improving efficiency and reliability in a wide operating range. Two kinds of permanent magnets having different shapes or different magnetic characteristics are embedded in a rotor core, to form a magnetic pole. The permanent magnets arranged at the magnetic pole include a permanent magnet whose product of coercive force and thickness along a magnetizing direction is small and a permanent magnet whose product of coercive force and thickness along the magnetizing direction is large. A magnetic field created by passing a current to an armature coil for a short time is used to irreversibly magnetize the permanent magnet whose product of coercive force and thickness along magnetizing direction is small, thereby changing a total linkage flux amount, and a positive d-axis current is passed when torque is large.

Abstract: An apparatus for removing a needle from a needle holder, including a grasping unit for selectively grasping the needle; a receiving unit for receiving the needle holder, displaceably disposed relative to the grasping unit; a biasing member biasing the receiving unit in a first direction; and separating means for separating the entire needle from the needle holder. Preferably, the needle is heated to melt, soften, or otherwise weaken a material and/or adhesive connecting the needle with the needle holder. Preferably the heating is electrical heating, including completing an electrical circuit through the needle and passing current through the needle, and/or passing current through a heating element.

Abstract: The present invention provides a permanent-magnet-type rotating electrical machine capable of realizing variable-speed operation in a wide range from low speed to high speed at high output and improving, in a wide operating range, efficiency, reliability, and productivity. A narrow magnetic path 11 is formed in a rotor core 2 of a rotor 1 at an inter-pole yoke that magnetically connects adjacent pole core portions 7 to each other, so that the narrow magnetic path is magnetically saturated with flux of a magnetic field created by a predetermined magnetizing current passed to an armature coil 21. Each of first permanent magnets 3 at each of the pole core portions 7 is magnetized with a magnetic field created by a magnetizing current passed to the armature coil 21, to irreversibly change the flux amount of the first permanent magnet.

Abstract: A combustor liner for a gas turbine engine including first and second annular liner portions engaged to one another with an interference fit. The first liner portion includes at least one anti-rotation feature extending therefrom and engaging the second liner portion and having a threaded hole defined therethrough at least substantially perpendicularly to an adjacent radially extending surface of the second liner portion for threadingly receiving a pushing tool for pushing against that surface.

Abstract: A method for mounting or removing a power supply container of a drive motor of a motor vehicle that is secured to the motor vehicle using a bolt acted on by a piston. The method includes: acting on the piston to move the pistons relative to the bolt so as to disengage the bolt; and rotating the bolt such as to lock or unlock the bolt and lock or unlock the battery.

Abstract: A tool for removing plugs from recesses obviates the need for a twist of the wrist in engaging a plug for removal. A plunger is carried by a housing and is supported for reciprocal axial motion between extended and retracted positions relative to the housing. A shaft of the plunger includes a first threaded section that is engaged in a nut carried by the housing and has threads pitched to allow relative axial motion to be converted to relative rotation between shaft and housing. A second threaded section of the plunger shaft is configured to tap into a plug in response to shaft rotation in a tapping direction, and has a shallower thread pitch than the first threaded section.

Abstract: An apparatus includes a plate configured for connection to a first engine crankcase portion, such as the lower crankcase. A cam mechanism is secured to the plate and has a portion spaced from the plate to define a gap between the portion of the cam mechanism and the plate. Studs are configured for connection to the second engine crankcase portion and configured to span the gap when connected to the second engine crankcase portion so that the cam mechanism rests on the studs when the plate is connected to the first engine crankcase portion. The cam mechanism is configured to lift the plate when force is applied to the cam mechanism. A method of separating crankcase portions is carried out using the apparatus.

Abstract: A device for driving and extracting a post having a hollow barrel having one closed end and one open end for receiving the post, and two longitudinal handles, wherein at least one handle is pivotally fixed at the closed end of the barrel and releasably secured with a fastener at the other end such that said handle is utilised to facilitate driving of the post or can be released to act as a lever for extracting the post. The device also has a striker disc fixed within the barrel at the closed end with a void between the disc and closed end of the barrel to muffle the noise created during driving of a post.

Abstract: A method of separating a structure including a fragile zone delimiting two substructures to be separated, where at least one plane blade is advanced in a separation plane corresponding to a median plane of the fragile zone, from an entry edge of the structure in a direction of advance toward an exit edge of the structure, so as to cause progressive separation of the two substructures, and where the inclination of the blade in the separation plane is varied relative to the direction of advance.

Abstract: A doorframe removing apparatus includes an end wall. A pair of legs each has a first end a second end. The first ends are attached to the end wall. The legs are orientated substantially parallel to each other. An end wall coupler is attached to the first side of the end wall. A frame coupler is removably attached to a doorframe attached to a perimeter edge of a door orifice in a wall. An urging member is removably attached to and extends between the end wall coupler and the frame coupler. The urging member is configured to urge the frame coupler toward the end wall coupler. The second ends of the legs are positioned on opposite sides of the doorframe and supported against the perimeter edge. The urging member is actuated to pull the doorframe away from the perimeter edge of the door orifice.

Abstract: A pitman arm removal tool and method of removing a pitman arm from a steering box shaft is provided. The pitman arm removal tool includes a puller arm for engaging a lower surface of the pitman arm. A lever arm is disposed a second surface of the pitman arm, in substantially spaced opposed relation with the puller arm. A linking arm connects a first end of the lever arm to a first end of the puller arm, the linking arm being pivotally connected to the lever arm and the puller arm. A bolt assembly connects a second end of the lever arm to a second end of the puller arm, the bolt assembly being adjustable to draw the puller arm closer to the lever arm, thereby urging the pitman arm to traverse the steering box shaft and out of engagement with the steering box shaft spline.

Abstract: The embodiment relates to a cover strip machine and process for removing a golf ball cover for recycling purposes. The cover strip machine may comprise four or more rotating gears. The process comprises heating a golf ball, distorting a golf ball, placing a golf ball in a cover strip machine to remove the cover, and separating gear pairs with a driver to remove the golf ball core.

Abstract: A stake puller for extracting a stake from a portion of a substrate (e.g., earth, soil, or the like) wherein the stake is abutted against a perpendicular wall that thereby exposes a side portion of the stake opposite of the perpendicular wall between the portion of the substrate and an exposed top of the stake, the puller including: a shaft having a distal end and a proximal end; a cross-handle coupled to the proximal end; and a stake-engaging head, coupled to the distal end, engaging the exposed side portion of the stake between the portion of the substrate and the exposed top from a direction opposite of the perpendicular wall wherein a longitudinal axis of the shaft is generally parallel to a longitudinal axis of the stake when the stake-engaging head engages the exposed side portion of the stake.

Abstract: A tool for use with a basket assembly is provided. The basket assembly is of the type configured for being receivably engaged with an opening defined in a drain cover skirt for covering the perimeter of a floor drain. The tool is configured for engaging the basket assembly and removing the basket assembly from the drain cover skirt upon force input from a user.

Abstract: A tool and method of use directed to the extraction of a wheel bearing's outer ring. When a tractor or trailer's wheel bearing fails and is in need of replacement, the present invention provides for a quick and easy means of extracting the remaining wheel bearing component residing in the wheel rim, the outer ring. The tractor wheel bearing extraction tool of the present invention is comprised of two pieces. The first piece is inserted into the wheel cylinder within the wheel rim and locks to the wheel bearing outer ring. The tool's first piece thus provides for a punching back for the second piece of the tractor wheel bearing extraction tool. The second piece is a hammering rod and is inserted into the opposite end of the wheel cylinder within the wheel rim. The hammering rod locks into the first piece and allows the user to hammer out the outer ring wheel bearing component with one strike.

Abstract: An outside diameter of a rim spacer of a vehicle wheel is formed with an equal outside diameter dimension to those of fringe portions of an outer rim making it possible to prevent a step from being produced between the fringe portion of the outer rim and the rim spacer. An abutment portion of an inner rim has an outside diameter formed with an equivalent diameter to the outside diameter of the rim spacer to prevent a step from being produced therebetween. This prevents an inner tire from being inclined diagonally between the inner rim and the rim spacer and also prevents a bead seat band and the like of the inner tire from being caught between the outer rim and the rim spacer.

Abstract: A fork cartridge driver having an outer ring and an inner driver which is reversible to engage both a fork cap and a fork cartridge. Also a second embodiment of a fork cartridge driver having an enclosed slot. Also a third embodiment of a fork cartridge driver having an engagement feature mate. Also a method for disassembling a fork cartridge assembly, which includes a fork cap having an octagonal outline portion and a fork cartridge having a ridge using a fork cartridge driver which is reversible.

Abstract: A tool may loosen seized bolts by sending shock waves into the bolt shank and thread areas via axial blows from a pneumatic hammer on the center of the bolt head prior to removal. The tool may allow impacts to be centered on the bolt head without damaging the bolt head or without worry of the bit jumping off the bolt.

Abstract: An assembly configured for attachment to a media drive can include a base with a front side, a back side, a hinge axis, a hinge end, an opposing end and a front side grip seat disposed intermediate the hinge end and the opposing end; a handle configured for rotation about the hinge axis of the base where the handle includes a front side, a back side, a hinge end, a swing end, and a back side grip feature configured to sit in the front side grip seat of the base; and a hinge stop mechanism configured to limit rotation of the handle about the hinge axis and, at a limited angle of rotation, to position the back side grip feature a distance away from the front side of the base and approximately midway between the hinge end and the opposing end of the base. Various other apparatuses, systems, methods, etc., are also disclosed.

Abstract: A metal cutting tool assembly comprising a rigid holder blade, an insert receiving slot formed in a leading end of the holder blade and defined between a resiliently displaceable clamping jaw formed integrally with the holder blade and rigid base jaw forming part of the holder blade, spaced apart displacement and supporting surfaces respectively formed in or on the clamping jaw and the holder, and a slot opening key, a pair of spaced apart projecting prongs of the key with adapted to engage the surfaces. At least one of the prongs is displaceable with respect to the holder blade so as resiliently to displace the clamping jaw outwardly with respect to the base jaw into an opening position for insertion or removal of an insert.