Abstract: A tool structure includes a tool having a rotation shaft formed with a central hole for insertion of the distal end of a tool. The rotation shaft is provided with a cover, and has an outer wall mounted with an elastic member and a drive member. A drive shaft is passed through a first guide slot of the rotation shaft and a second guide slot of the shaft seat in the rotation shaft. Multiple clamping shafts are mounted in the shaft seat to mate with a clamping recess formed in the rotation shaft. Thus, when the tool head is rotated by the rotation shaft, the tool head may be fixed rigidly and stably by the relative urging effect between the clamping recess and the clamping shafts during rotation of the rotation shaft.

Abstract: A chuck has a body centered on an axis and formed with a rearwardly open bore adapted to fit with a drive spindle. Respective jaws are displaceable in angled guides of the body and a ring rotatable on the body has an internal screwthread meshing with the jaws for moving the jaws between their end positions on rotation of the ring. A latch element is radially displaceable on the body between a holding position projecting radially into the bore and locking the spindle therein and a freeing position clear of the bore. A sleeve is displaceable between a latched position forcing the element into the holding position and an unlatched position allowing it to move into the freeing position. A spring between the sleeve and the body urges the sleeve into the latched position. The spring is mostly forward of rear ends of the jaws in the rear-end positions thereof.

Abstract: A chuck has a body centered on an axis and formed with a rearwardly open bore adapted to fit with a drive spindle. Respective jaws are displaceable in angled guides of the body and a ring rotatable on the body has an internal screwthread meshing with the jaws for moving the jaws between their end positions on rotation of the ring. A latch element is radially displaceable on the body between a holding position projecting radially into the bore and locking the spindle therein and a freeing position clear of the bore. A sleeve is displaceable between a latched position forcing the element into the holding position and an unlatched position allowing it to move into the freeing position. A spring between the sleeve and the body urges the sleeve into the latched position. The spring is mostly forward of rear ends of the jaws in the rear-end positions thereof.

Abstract: A clamping chuck having a central receptacle and a disk arranged around the receptacle and which may be moved from a clamping position, whereby a draw bar inserted into the receptacle is clamped, to a releasing position wherein a draw bar is released from being clamped. The disk has a locking mechanism including a plurality of locking elements which are equally spaced in a circumferential direction. The draw bar is coupled to a brake such that the braking force of the brake is proportional to a pull on the draw bar. Thus, a high axial load on the draw bar causes a high braking force and a low load results in a low braking force.

Abstract: A tool holder holds a shank of a cutter tool. The tool holder comprises a supporting cylinder. An operation body moves between a locking positionand an unlocking position A locking member is supported by the supporting cylinder. The locking member moves radially in accordance with the position of the operation body. An engaging member is located between the supporting cylinder and the operation body. The engaging member moves between an engaging positionand a disengaging position When the engaging member is in the engaging position, the operation body is prevented from moving relative to the supporting cylinder and is held in the unlocking position and when the engaging member is in the disengaging position the operation body is allowed to move relative to the supporting cylinder. This mechanism facilitates smooth insertion of the cutter into the supporting cylinder.

Abstract: A removable chuck has a chuck member for holding a drill bit. Also, a mechanism is coupled with the chuck body to retain the chuck body to a drill spindle. The retention mechanism, in a first position, has at least one biased blade, in a non-biased condition, retaining the chuck on the drill spindle and in a second position, with the at least one biased blade in a biased condition, the chuck is enabled to be removed from the spindle.

Abstract: The elongate rod shaped non-impact and non percussion drilling tool comprises: a non-impact and non-percussion drilling tool or implement formation at an outer end of the shank, a portion of the shank having a polygonal cross section at a location on the shank other than at an inner end of the shank, an annular groove in the shank which is only wide enough to receive a detent to prevent axial movement of the tool when it is received in a snap-in chuck assembly and a spline formation at an inner end of the shank. The chuck assembly includes either a polygonal drive structure in a center bore of the chuck assembly or a rotatable nose collar or an axially movable nose collar whereby a tool received in the center bore is held by friction in the polygonal drive structure or by a rotatable movement or an axial movement of the nose collar.

Abstract: The chuck assembly comprises: a chuck body having an outer end portion, an outer periphery and a central axial bore extending at least part way therethrough; a nose collar mounted on the outer end portion of the chuck body; structure for mounting the chuck body onto the outer end of a shaft of a powered drive mechanism; the outer end portion of the chuck body having at least one radially extending bore therein which extends from the outer periphery of the chuck body inwardly to an opening which opens to the central bore and which has a diameter less than the diameter of the radial bore; at least one ball or detent in the at least one radial bore; urging mechanism for urging the ball or detent into the radial bore and part way through the opening; releasing mechanism for allowing the ball or detent to move radially outwardly in the radial bore and away from the opening; and structure in the central bore for engaging a tool shank and preventing rotation of the tool shank relative to the chuck body.

Abstract: A tool holder (10) is proposed for tools inserted into machines for drilling and/or percussion operation having means for rotational driving and axial locking of a tool shank which can be inserted into a tool receptacle (11) of the respective machine, wherein a plurality of axial strips (13) which project inward radially are provided for rotational driving and at least one radially lockable locking body is provided at the tool holder (10) for locking. In order to accommodate tool shanks of two grooved shank systems with different outer diameters, two axial strips (13) which are located opposite from one another and are directed inward radially are arranged at the receptacle bore (12). The axial strips (13) are guided such that they can be released outward radially, particularly in a springing manner, wherein the axial strips (13) engage in corresponding grooves (20) of the respective inserted tool shank (19) for rotational driving.

Abstract: An adjustable socket wrench has only two components, namely, a collet driver with movable jaws and a circumscribing adjustable sleeve. Positive detent positioning of the fastener engaging jaws is obtained by rotation of the adjusting sleeve which radially moves the jaws inwardly or outwardly without axial movement of any parts.

Abstract: A self-adjusting socket (14) for a wrench handle (16) having a drive end (18) with a ratchet reverse lever (20) and a square peg (21). The socket (14) comprises a cylindrical wall (22). A component (24) is rotatively carried in a top end (26) of the cylindrical wall (22, for coupling the square peg (21) of the wrench handle (16) thereto. A plurality of movable pins (28) are provided. A structure (30) is rotatively carried below the coupling component (24) in the cylindrical wall (22), for engaging with the movable pins (28). Elements (32) are for connecting the coupling component (24) to the movable pin engaging structure (30).

Abstract: A clamping system for attaching a saw blade to a blade carrier of a reciprocating saw includes a clamp member having a tubular body and a hollow interior. The clamp member is mounted on the free end of a blade carrier which has a longitudinal slot for receiving the shank of a saw blade. The free end of the blade carrier has an aperture in its side wall. In a preferred embodiment a ball is received within the aperture and freely movable therein. The inner surface of the clamp member has an eccentric groove which defines a camming surface engaging the ball. Upon rotation of the clamp member to a locking position the ball engages an aperture in the shank of the blade to hold the blade in place. The clamp system is designed to accept saw blades having standard universal designs. In another preferred embodiment a pin is received within the aperture in the blade carrier. The pin has a first end which is adapted to be received within the aperture in the shank portion of the saw blade.

Abstract: A keyless chuck assembly for a hand-held drill includes a housing, three jaws for gripping a drill which is to be turned by the drill chuck assembly. The jaws are retained in the assembly and confined to radial motion with respect to the drive shaft by means of T-shaped guide slots in the bottom of the drive shaft and cooperating T-shaped ribs on the tops of the jaws. The jaws have a gripping surface and a cam surface. A rotatable adjusting ring engages the jaws to move them in the radial direction to secure and release the drill bit. The jaws can include a resilient material between the gripping surface and the cam surface to allow the chuck jaws to more securely grip the drill bit. A locking mechanism prevents rotation of the ring which would allow the jaws to open.

Abstract: An improved stud removal tool comprises a cylindrical socket having an open end communicating with a coaxial cavity and a shank extending coaxially adjacent the socket opposite the open end, the shank terminating opposite the socket in an anvil end adapted to cooperate with a driver such as an impact wrench for turning the socket. A plurality of axially extending cams extend on the interior wall of the socket vary the radius of the cavity at evenly distributed positions. The cams radially engage an equal number of gripping jaws contained within a removable cartridge which is free to shift relative to the socket within the cavity. The cams thereby inwardly bias the jaws for gripping a stud inserted into the cavity between the jaws. The cartridge comprises a cylindrical unit made up of the jaws separated by resilient blocks bonded to the edges of the jaws and serving to space the jaws to keep them mated with the cams. The spacer blocks also radially bias the jaws outward against the cams.

Abstract: A device for gripping a stud to unscrew the stud includes a tubular housing. The housing has an axial bore with a plurality of cam surfaces formed in the bore. A cage is carried in the bore. The cage has a number of windows, each located adjacent one of the cam surfaces. A jaw is carried in each window of the cage. Each jaw has an outer side that mates with one of the cam surfaces and an inner side containing teeth for gripping the stud. The cam surfaces will move each jaw radially between inner and outer position when the housing rotates relative to the cage. A spring urges the jaws to the outer position.

Abstract: A device for supporting a wafer comprises a base plate for arranging the wafer thereabove and a plurality of supports circumferentially arranged on the base plate to support the peripheral of the wafer. In order to expose portions of the wafer covered by the supports, either an annular member to engage with the supports for moving them radially outward, or a roller driven by a motor to rotate the wafer relative to the supports is provided.

Abstract: A device for gripping a stud to unscrew the stud includes a tubular housing. The housing has an axial bore with a plurality of cam surfaces formed in the bore. A cage is carried in the bore. The cage has a number of windows, each located adjacent one of the cam surfaces. A jaw is carried in each window of the cage. Each jaw has an outer side that mates with one of the cam surfaces and an inner side containing teeth for gripping the stud. The cam surfaces will move each jaw radially between inner and outer position when the housing rotates relative to the cage. A spring urges the jaws to the outer position.

Abstract: A retainer apparatus is used to releasably retain a socket wrench member on the plug of the driving head of a rotary lever. The retainer apparatus includes a connecting rod, a control rod and a sleeving ring. The connecting rod has an bore formed in an end surface thereof, in which the control rod is disposed. A retaining pin is passed through the position limiting hole of the connecting rod to interconnect the sleeving ring and the control rod, so that actuation of the sleeving ring can rotate the control rod relative to the connecting rod. The control rod has a circumferential extending retaining groove which is gradually deepened from a narrow end portion to a deep end portion. A retaining ball is positioned in the narrow end portion of the retaining groove and extends through a retaining hole of the connecting rod and into one of four retaining holes of the socket wrench member, so as to retain the socket wrench member on the connecting rod.

Abstract: An hydraulically operated slip assembly useful to grip pipe being run into or pulled from a well. This assembly has upper and lower plates, each having a passage for pipe. Wedges, carrying unique slip systems are positioned around the passages between the plates and are slidably mounted for guided radial movement inwardly to initially grip pipe in neutral position and outwardly to ungrip pipe as moved by an hydraulic cylinder pivotally mounted aside on the lower plate. The unique slip systems automatically increase gripping force on initially gripped pipe on more than about 0.7 inches up or down movement from neutral position caused by loads on the pipe. Forces resulting from increased pipe gripping force on pipe develop frictional forces within the slip assembly, which effectively prevent outward movement of the wedges after inadvertent or on purpose operation of the cylinder to ungrip the pipe.

Abstract: A tool chuck for holding axially extending the shank end of a tool bit includes a guide tube with an adapter sleeve encircling and being rotatable relative to the guide tube for securing holding segments in engagement with the tool bit. The holding segments are U-shaped in section transverse to the axial direction of the guide tube. Each U-shaped holding segment has a pair of inwardly directed legs engageable within grooves in the shank end of the inserted tool bit. One of the legs forms a locking element while the other acts as an entrainment strip. By turning the adapter sleeve around the guide tube, either the entire holding segment or only the entrainment strip can be displaced radially outwardly out of contact with the shank end of the tool bit. The adapter sleeve has displacement recesses in its inner surface facing the outer surface of the holding segments for receiving the holding segment in the outwardly displaced condition.

Abstract: A quick-change adapter which allows the precise positioning of a working member such as a tool, a workpiece or the like with respect to a machining device has a precision of one or two ten-thousandths of an inch. The adapter includes first and second holders affixed to the working member and the machining device. Each of the first and second holders includes a mating surface, configured as a helical face gear or as a cylindrical stud and recess. A shank extends from the first holder and has a V-shaped notch on which pins on the second holder abut, so as to draw the first and second holder engagement surfaces into firm abutment. The pins are preferably driven by a floating cam ring carried by the second holder, so that positioning of the holders with respect to one another is determined substantially only by the engagement surfaces. Misalignment of the holder due to movement caused by non-axial drawing on the shank is eliminated.

Abstract: An ironing accessory is adapted to be releasably carried on the discharge nozzle of a standard hair blow dryer and includes a flat plate having multiple openings discharging hot air from the nozzle. A cylindrical collar carried on the plate insertably receives the nozzle, and resilient grippers are disposed in a radial arrangement on the inside of the collar for releasably attaching with the nozzle. A cam arrangement is carried on the inside surface of a retaining ring and, rotatable therewith, advances the grippers into engagement with the nozzle as a ratchet mechanism retains the grippers in position as the ring is rotated. Resilient pushbuttons disconnect the ratchet mechanism to release the grippers for nozzle removal.

Abstract: Objects of various sizes are centered and releasably held with a holder member having an annulus and radially mobile object supports or flexible fingers projecting inwardly from that annulus for centering and releasably holding any of the objects inside that annulus. These radially mobile object supports or flexible fingers are of one piece with the annulus. Adjustable actuator members, which may project from an annular structure concentric with, and rotatable to, the annulus, engage the radially mobile object supports or flexible fingers for selectively moving the same radially relative to the annulus for an accommodation of any of the objects. Detents may be provided between the annular structure and the annulus for releasably retaining the annular structure in any of several annular positions relative to the annulus.

Abstract: An opening device for an extension rod drilling equipment, comprising a supporting sleeve (3) rotatably mounted in a frame (1), and gripping jaws (6) displaceably mounted in the sleeve for gripping a drill rod. In order to allow the device to both grip the drill rod and rotate it, the supporting sleeve is connected to a rotating mechanism (14) and provided with cylindrical guideways (4, 5) positioned eccentrically with respect to the axis (A) of the sleeve in such a manner that a rotating movement of the sleeve with respect to the gripping jaws causes a displacement of the gripping jaws towards an aligned rod releasing position and away from the aligned position respectively, depending on the direction of rotation of the supporting sleeve.

Abstract: A system for holding workpieces during machining providing a plate to which the workpiece can be rigidly secured. The plate, on its rear face, has a central frusto-conical boss which seats into a complementary central recess in a support member. The support member has plural, radially reciprocal latch members which engage pockets in the boss. A ring rotatably mounted on and surrounding the support member is operatively connected to the latch members for simultaneously extending and retracting them.

Abstract: Rotating and positioning tool for axially symmetrical workpieces, especially for steering tie rods in motor vehicles. A housing with a recess for the introduction of a workpiece accommodates a clamping mechanism with a crown gear that is positioned and driven at its circumference. An empty space inside the crown gear communicates with the outside through an access slot. The space is demarcated by a contour. Three tension rollers are accommodated inside the empty space in such a way that they can be displaced radially inwardly against the force of springs. The rollers roll along the contour. The distance of the contour from its axis of rotation continuously varies through alternating maxima and minima. As the crown gear rotates, the tension rollers are forced in from a starting position where the distance is maximal and securely clamp the workpiece, which is located at the axis of rotation.

Abstract: A hydraulically operated slip assembly, connectible to a well head or well pipe handling machine and useful to intermittently grip pipe being run into or pulled from the well. The slip assembly has upper and lower plates with passages for pipe. Wedges, carrying unique slip systems, are positioned around the passages and slidably mounted for radial movement between guide plates extending from the upper and lower plates. The wedges are moved radially inward to grip pipe and radially outward to release pipe by a hydraulic cylinder, pivotally mounted aside the lower plate. When actuated to extend, the hydraulic cylinder rotates an inner bearing race and attached camming segments, which move the wedges inwardly to grip pipe. When the cylinder is actuated to contract, the bearing race and camming segments are rotated to pull the wedges outward radially, releasing pipe. The bearing outer race is housed in ring segments between and connecting the slip assembly upper and lower plates.

Abstract: An optical fiber with a bare end portion is faced-off precisely at 90 degrees. With an unsecured ferrule loosely located on the fiber, the fiber is passed through oversize openings in a fiber holder and a crimping station. The bare fiber portion is located in the interstice of three rods having identical diameters and the assembly is releasably held by jaws in a holding station. The faced-off fiber end is positioned slightly inwardly from the end faces of the rods by a limit pin. The fiber holder is tightened onto the fiber to maintain it in straightened condition and the ferrule is then slid into place over the three rods and included fiber. The crimping station is moved along a track toward the holding station until crimping jaws are positioned about the ferrule, three rods and fiber. Crimping jaws deform the ferrule at several different places firmly securing it in place on the rods.

Abstract: A holder of improved construction for mounting a saber saw blade on a drive means for reciprocation. The holder includes means defining a slot for receiving the blade, and means coupled with the support means for retaining the blade in the slot and for preventing movement of the blade relative to the support when the support and blade are reciprocating under the influence of the drive means. The holding means in several embodiments includes cam members which are received in notches in respective blades. Other embodiments relate to the formation of blade-receiving slots by moving wall means into proximity with recesses in side faces of elongated members.

Abstract: A device to connect an ejector device, of an injection molding machine, to an ejector pin of a mold used with the machine. The device has a holder with jaws which are radially movable therein for clamping and unclamping the ejector pin introduced into the holder. A spring urges the jaws towards the clamping position, and the jaws can be moved to the unclamping position by a manually operable actuator. A latch can hold the jaws in the unclamped position, and the holder has a releasing element mounted in it and arranged so that when actuated by the ejector pin it allows the spring to bring the jaws into the clamping position to lock the ejector pin.

Abstract: A holder for a blade of a saber saw unit, wherein the blade is of the type provided with a pair of opposed side marginal edges and a notch in at least one side marginal edge near the rear end of the blade. The holder includes a support having a slot for receiving the blade and projecting means shiftably mounted on the support near one side margin of the slot for movement across the same and into the notch of the blade when the blade is in the slot to releasably hold the blade in the slot. Bias means holds the projection means in an operative position in the notch of the blade in the slot. A number of embodiments of the holder are disclosed.