Abstract: In the broader aspects of the invention, there is provided a new and improved tool driver having a shaft with a longitudinal axis and opposite ends and tools therefor. A boss is secured at one of said shaft ends by which the tool driver is connected to a rotary tool. A tool collate is secured at the other of the shaft ends by which the tool driver may be driven by a surgical hand piece having a chuck in which the collate may be positioned. The boss has a surface which engages the tool and positions the tool exactly coaxially of the tool driver. A latch mechanism is provided to hold the rotary tool on the boss, whereby the rotary tool is held exactly coaxially of the driver during use. The rotary tool which is used with the driver has a bottom tool driver opening which has the same dimensions as the boss of the tool driver of the invention. The boss thus fills the opening and the opening is complementary to the boss.

Abstract: A drill or milling head (1), especially for printed circuit milling machines and engraving machines, including a collet chuck (27) which can be actuated by a rapid change mechanism. The drill or milling head includes a drive shaft which can be connected to a motor (3a). The collet chuck (27) is opened by axial displacement opposite a clamping sleeve (29), and the force necessary for the axial displacement is transmitted via a friction clutch (19, 23). As a result the drill or milling head cannot be damaged, and there is no danger of injury when changing the tool if the user fails to turn the motor (3a) off beforehand.

Abstract: A holder for holding a tool, having an elongated housing, including a longitudinal hole having a cross-section corresponding to the cross-section of a mounting portion of the tool bit. The housing further has at least one radial hole running from an outside surface of the connector to the longitudinal hole. The radial hole contains a substantially spherical locking means movably arranged in the radial hole. The means cooperates with a circumferential groove in the tool bit to lock the tool bit in place when the tool bit is fully inserted into the holder. A sleeve is arranged to reciprocally slide over the first connector between two end positions. The sleeve is biased towards the tool by a first biasing means, and the sleeve has a step arranged on the inside of the sleeve, which step blocks the locking means when a tool is fully inserted into the longitudinal hole. A plunger is arranged to reciprocally slide inside the longitudinal hole, being pressed by a second biasing means towards the tool.

Abstract: A tool holder for coupling of rotating and striking tools with hand power tools has a coupling sleeve, a drive member connectable to a hand power tool and transmitting a drive movement, the coupling sleeve being connected with the drive member, a tool shaft provided with groove-shaped locking pockets which are closed at both sides in an axial direction, the coupling sleeve being connected with the tool shaft, elongated locking bodies which are oriented axis-parallel and engage in the locking pockets, the coupling sleeve having a longitudinal passage in which each of the locking bodies are axially displaceable and held radially immovable, a displacement sleeve which surrounds the coupling sleeve with the locking bodies and is spring-loaded in an axial direction, the displacement sleeve having an inner blocking surface which blocks a radial movement of the locking bodies, each of the locking bodies has a construction which is saddle-shaped in a longitudinal section and has two humps which have an arcuate cross-

Abstract: A stud driver and remover and a method of making the same overcomes the problems of the prior art and accommodates driving and removing of studs and subsequent removal of the studs from the stud driver and remover. The stud driver and remover constructed in accordance with the method of the present invention can drive and remove studs of any size without causing any significant damage to the stud, and the stud is subsequently easily removable from the stud driver and remover after a stud removal operation has been performed.

Abstract: An improved plumbers' tool of the type employing a helically wound coiled spring which is controllably inserted into waste lines to remove blockages. In operating the tool of the invention, a storage drum from which the clean-out spring is payed out is rotated, usually by a small electric motor, and the spring is clamped in a chucking mechanism so as to rotate with the housing. The improvement of the present tool resides in the provision of a unique actuating mechanism which provides a substantial mechanical advantage that enables the operator, using only one hand to grip a forwardly positioned stationary handle with the fingers and move a pivotally movable, rearwardly positioned handle with the heel of the hand to cause the chucking mechanism to positively engage the coiled spring in a manner to prevent slippage even under severe torque loading conditions.

Abstract: An automatically adjustable socket transferring torque a range of bolt heads sizes in either direction comprises a pair of jaws slidable angled to a center cylinder and urged outward to a receiving position so that when the socket is set upon a bolt head the bolt head impresses the jaws towards the center cylinder, angularly so that the jaws maintain a parallel orientation to the bolt head faces. An upper cylinder and a lower cylinder surrounding the center cylinder each having complementary double arch rims interact as torque is applied to the upper cylinder, first to separate the two cylinders the bottom cylinder further impressing the jaws upon the bolt head until the jaws are maximally closed upon the bolt head the double arch rims then providing a torque transfer means from the upper cylinder to the lower cylinder. The lower cylinder transfers torque to the jaws through torque transfer surfaces to the jaws tangential to the bolt head.

Abstract: A clamping or chucking tool for clamping a test sample in a testing machine has a clamping housing for applying a wedging action to the sample with the aid of one or two clamping jaws that are activated by an operating member that is inserted into the clamping housing and axially displaceable in the clamping housing. The clamping jaws are slidingly guided in a V-groove of the operating member but are stationary in the axial direction of the clamping housing, while the operating member is movable axially relative to the clamping housing for imparting to the clamping jaws a radial movement component perpendicularly to the longitudinal axis of the test sample. Lateral guide arms engage respective guide grooves in the clamping jaws to hold the clamping jaws against axial movement while permitting the radial movement. The clamping housing and the operating member are provided with at least one lateral opening for a rapid insertion of the test sample laterally into the clamping housing.

Abstract: A stud driver and remover for studs having non-grip areas includes an improved construction that enables the stud driver and remover to drive and remove studs without damaging a non-grip portion of the stud. The improved stud driver and remover includes five drive rolls, and increased ratio between the cross-sectional areas of the stud and the drive rolls. The stud driver and remover also includes an increased roll length and decreased included angle which allows the roll to penetrate more deeply into the stud. Each of a plurality of cams formed in a core of the tool is provided with a recess to accommodate one of the rolls. These recesses allow the tool to be placed on a stud having a non-grip area such as a flange or threaded area and to drive and remove the stud without damaging the non-grip area.

Abstract: A stud driver and remover for large diameter studs includes an improved construction that enables the stud driver and remover to quickly remove large diameter studs that previously had to be removed usually by drilling. The improved stud driver and remover for large diameter studs includes five drive rolls, and increased ratio between the cross-sectional areas of the stud and the drive rolls. The stud driver and remover also includes an increased roll length and decreased included angle which allows the roll to penetrate more deeply into the stud. A radius of each of a plurality of cams formed in a core of the tool is dependent on the size of at least one of an inner diameter of the main ring, a diameter of one of the rolls and a radius of the stud to be driven and removed. The cooperation between the cams and the core is modified to accept an increased variance in stud size.

Abstract: The invention is a quick change holding device for tools and, more particularly, for taps. The holder has an axially movable collar cooperable with holding elements which can be placed in holding position relative to an annular groove in the tap and released therefrom. The holding elements are curved, that is arcuate individual members having rounded, that is, curved, surfaces on the outsides thereof. The inner rounded or curved surface of the holding element comes into contiguous flush mating engagement with the annular groove in the tap, whereby improved holding capability is achieved.

Abstract: The boss of a steering wheel is serrated by setting the steering wheel on a serrating broaching machine, inserting a serrating broach into a through hole defined in the boss of the steering wheel, and then pulling the serrating broach with a broach chuck gripping the serrating broach to cut serrations on an inner surface of the through hole in the boss. The steering wheel is positioned nonrotatably in a prescribed angular orientation on the broaching machine while placing the boss on a holder of the broaching machine. Then, the serrating broach is inserted through the through hole in the boss into the holder of the broaching machine while holding the serrating broach in a prescribed angular orientation around the axis thereof with respect to the broach chuck. Finally, the serrating broach is pulled from the boss with the broach chuck gripping the serrating broach to cut serrations on the inner surface of the boss.

Abstract: Broach pulling apparatus which eliminates play and backlash during the broach operation. Jaws carried by the broach pulling spindle engage the broach in a manner to impose axial forces thereon in opposite directions to eliminate lost motion and clearances between the spindle and the broaching tool during cutting and alignment.

Abstract: A pipe turning apparatus for rotatably mounting and turning a pipe and having a threaded chuck member for rotatably engaging one end of the pipe and a chuck fitting for slidably engaging the other end of the pipe. The threaded chuck member reciprocates and is rotatable by a drive mechanism in opposite directions so as to engage and disengage threads on the one pipe end. The chuck fitting slidably receives the other pipe end which may carry thereon a second coupling which remains threaded on the pipe. The chuck fitting may include resilient fingers surrounded by an adjustable collar so as to vary the force for gripping the other pipe end and for quick insertion and removal of the other pipe end from the fitting. The drive mechanism may be activated by the motor of a conventional hand drill. Turning apparatus may include attachments for wrapping the pipe with a web or coating the pipe with a chemical coating composition.

Abstract: An improved quick release chuck mechanism is disclosed mountable on a spindle for releasably holding a tool or the like. The chuck mechanism comprises a body member having an end surface. A tool insert having a shoulder is supported by the body member. The end surface is provided with an adjustment for varying the position of the end surface for achieving a predetermined end surface position while mounted on the spindle. The tool insert is releasably held in the body member by an improved locking mechanism that positively forces the shoulder into engagement with the end surface. The improved chuck mechanisms, when mounted on multiple head spindles, provide a method for compensating for tolerance differences that exist between the spindles to achieve identical predetermined end surface positions for the spindles.

Abstract: A clamping chuck for securing a drill bit, chisel bit or the like in a drilling tool includes a guide sleeve into which the bit is inserted. Clamping jaws are radially displaceably mounted in the guide sleeve with a setting sleeve encircling the jaws. By axially displacing the setting sleeve relative to the guide sleeve the jaws can be radially displaced in gripping engagement with the bit. The setting sleeve has radially inwardly facing surfaces in contact with radially outwardly facing surfaces on the jaws. Retaining elements secured in the setting sleeve engage in slots in the jaws for guiding the jaws. The retaining elements can be strip-like elements extending through the slots in the jaws with the elements having a thickness corresponding to the slot width.

Abstract: The present invention provides an apparatus and method of utilization of the same of a quick change tool coupling for a rotational metal working or like machine. The present invention provides a tool holding coupling for use with machines with an automatic tool exchanger. Use of the present invention allows the elimination of the drawbar mechanism commonly used in standard metal working machines, while providing axial bending rigidity for the tool.

Abstract: A socket (10) for torquing nuts and bolt heads includes adjustable jaws (18) biased in an outward radial direction by associated helical springs (22) whose inner ends are engaged with a seat preferably embodied by a ball (20). A support member (16) includes slideways (30) that mount slides (24) of the jaws (18) for inward and outward adjusting movement, and each jaw (18) has an inwardly facing engagement surface inclined with a slight inward inclination in an axial direction away from the slide thereof so as to accommodate for clearance between the slide and the associated slideway by jaw tilting that permits gripping of a nut or bolt head with surface-to-surface contact. A camming surface (36) on each jaw is engaged by a camming surface (44) on a sleeve (38) of the socket and defines an angle greater than 90.degree. with the path of jaw movement so as to facilitate jaw adjustment and prevent any binding of the jaws during such adjustment.

Abstract: A chuck for gripping long hollow workpieces has two independent sets of jaws actuated to the work-gripping and releasing positions by two independent puller plates. The puller plates are spring biased to shift the jaws to the work-gripping position. A single axially shiftable actuator has a lost motion connection with each puller plate to shift the jaws to the work-releasing position. The actuator also operates a safety latch which prevents accidental axial displacement of the workpiece on the chuck and a radial jack which provides radial support to a section of the workpiece subjected to a radial machining load.

Abstract: A quick change tool chuck system including:(a) a chuck having: a cylindrical housing member having a lateral aperture for receiving two diametrically opposed jaw members; two jaw members for gripping the shank of a tool, each of the jaw members having an outer surface which is sloped, and each of the jaw members also having an inner surface forming one or more driving surfaces for rotating the shank of a tool and multiple holding surfaces for clamping the shank of the tool; and a cylindrical sleeve member slidably positioned over the housing member, the sleeve member having two diametrically opposed wedge members positioned on the interior surface thereof; and(b) a tool having: a work performing portion; and a round shank connected to the work performing portion, the shank having multiple identical planar surfaces recessed therein, each of the planar surfaces being spaced an equal distance from the crown of the shank, and at least two of the planar surfaces being in contact with at least two of the driving su

Abstract: This connection means comprises a male connector (1) with a circular groove (5) and a female connector comprising a body (2), a cap (3) and a sleeve (4). The cap (3) hangs from the bottom end of body 2 within which it is able to partly slide. The cap has a bearing surface (7) bearing on the male connector (1) and its bottom part (9) covers the male connector. This bottom part is provided with a circular series of openings (10) each equipped with a finger (11) operable to slide radially. These fingers cooperate with windows (27) in a conical wall (26) of the sleeve (4). Connection is made by gravity, by body 2 pushing down on sleeve 4, which slides downward causing the fingers (11) to slide radially inward. Disconnection is accomplished by sending oil pressure through purposely provided channels (35, 33, 30) into a chamber (20), causing the sleeve (4) to slide up and the fingers (11) to retract.

Abstract: An adjustable socket (10) for rotatively driving bolts and nuts is disclosed as including a plurality of jaws (18) mounted on a rotatable driver (16) for quick action adjustment between fully opened and fully closed positions upon rotation of an adjuster (22) no more than one revolution. Each jaw has an inclined camming surface (28) that is slidably engaged by a jaw positioner (20) upon axial movement thereof in response to rotation of the adjuster so as to provide radial adjustment of the jaw positions. A spring (30) biases the jaws in an outward radial direction into engagement with the positioner. The jaw positioner comprises a sleeve (20) which has apertures (62) that receive the jaws upon outward movement. Camming surfaces (64) on the sleeve respectively adjacent the apertures (62) engage the jaws (18) to prevent outward jaw movement.

Abstract: A socket (10) for torquing nuts and bolt heads includes adjustable jaws (18) biased in an outward radial direction by associated helical springs (22) whose inner ends are engaged with a seat preferably embodied by a ball (20). A support member (16) includes slideways (30) that mount slides (24) of the jaws (18) for inward and outward adjusting movement, and each jaw (18) has an inwardly facing engagement surface inclined with a slight inward inclination in an axial direction away from the slide thereof so as to accommodate for clearance between the slide and the associated slideway by jaw tilting that permits gripping of a nut or bolt head with surface-to-surface contact. A camming surface (36) on each jaw is engaged by a camming surface (44) on a sleeve (38) of the socket and defines an angle greater than 90.degree. with the path of jaw movement so as to facilitate jaw adjustment and prevent any binding of the jaws during such adjustment.

Abstract: An adjustable socket (10) for rotatively driving bolts and nuts is disclosed as including a plurality of jaws (18) mounted on a rotatable driver (16) for quick action adjustment between fully opened and fully closed positions upon rotation of an adjuster (22) no more than one revolution. Each jaw has an inclined camming surface (28) that is slidably engaged by a jaw positioner (20) upon axial movement thereof in response to rotation of the adjuster so as to provide radial adjustment of the jaw positions. A spring (30) biases the jaws in an outward radial direction into engagement with the positioner. In one embodiment, the jaw positioner comprises a sleeve (20) which preferably has apertures (62) that receive the jaws, and the adjuster has a 360.degree. helical locking surface (26) that cooperates with a 360.degree. locking surface (24) on the driver in an axially opposed relationship to provide locking action and jaw adjustment.

Abstract: A work supporting plunger and a control plunger are perpendicularly arranged for axial sliding movement in a work support body. The inner end of the work support plunger engages an axially inclined face on the control plunger so that axial movement of the control plunger results in movement of the work support plunger to and from supporting engagement with a workpiece. A collet in the work support body concentric with the control plunger is adapted to lock the control plunger against movement. The collet is in turn surrounded by a collet locking sleeve movable axially to lock and release the collet.

Abstract: Core sampling drill head having powered drill chuck with jaws to grip drill rod. Head has thrust member movable by chuck actuating means between jaws retracted and jaws extended position, and precompressed chuck springs cooperating with thrust member and drill chuck so as to be movable with thrust member. Thrust member is located by releasable locking means in desired position, which means also relieve drill bearings of reaction from chuck springs. When thrust member is in jaws retracted position, chuck springs are precompressed by tension means and relatively large diameter tools can pass drill chuck. When thrust member is in jaws extended position, chuck springs cooperate with chuck, are further compressed and extend jaws to grip rod, and tension means are relieved of load from chuck springs. By precompressing and moving springs by themselves, worn drill rods can be accommodated in relatively short drill head without loss of grip.