Abstract: The invention pertains to a process and an apparatus for machining axially symmetrical parts on lathes or rotary broaching machines in which the workpiece is held at each end by an axial clamping pin and a clamping jaw assembly, the clamping pins and clamping jaw assemblies cooperating such that the clamping jaw assemblies may be retracted relative the clamping pins when the ends of the workpiece are being machined and may be extended relative the clamping pins when additional support for the workpiece is desired, as, for example, when the central portion of the workpiece is being machined. The clamping pins and clamping jaw assemblies are movable relative each other and relative the workpiece such that machining of both ends of the workpiece may take place simultaneously or sequentially, followed by machining of the central portion of the workpiece, on a single apparatus and as part of a continuous, uninterrupted machining sequence.

Abstract: An improved four-way socket wrench includes elongated socket members having a lower tubular portion connected between a socket head portion and a cross bar member, the lower tubular portion having an axial bore therein that is in communication with the socket opening of the socket member. Rigid implements can be inserted into the socket member so as to impart increased leverage thereto so as to, in turn, impart increased rotational torques to a nut being tightened or loosened.

Abstract: This invention is an open end wrench which is self-adjusting and ratcheting, which clamps a nut with a force greater than the nut turning force exerted on the wrench handle and which fits an entire range of nut sizes.

Abstract: A tube supported on a rotating mandrel is cut by a pair of cutter blades spaced apart a distance corresponding substantially to the diameter of the mandrel and which are moved simultaneously in a direction toward the mandrel and transversely of its axis of rotation a distance sufficient to enable the cutters to engage the tube at circumferentially spaced zones and sever the wall of the tube. The cutters move along a path that is tangential, rather than radial, relative to the mandrel.

Abstract: A centering stand (2) for positioning a work piece for rotary skiving and roller burnishing operations resulting in a hollow cylinder (4). The centering stand includes a vice (8) having a pair of grips (26, 26') for retaining the cylinder in proper position for rotary operations. A base plate (10) is movable together with the vice between a raised position supporting the cylinder and a lower position removed therefrom. The centering stand includes a plurality of guide members (14) having a track (20) formed on in inner surface (15) of each of the guide members for movement of the base plate in the track. The track includes a recess (21) formed on the inner surface of each guide member and a track plate (19) mounted to an outer surface of the guide members. Thus, the base vertically slides within the recesses and is retained in the track by the track plate.

Abstract: A ratchet wrench is described which includes a cap-surmounted core having a rotatable body sleeved in a drive ring. A shiftable pawl intercouples the drive ring and the core for driving the core selectively in each of opposed annular driving modes. A shaft projecting axially from the core terminates in a stud for carrying a tool element. The wrench is characterized in that there is provided a washer-like locking plate having a central opening and positionable axially over the shaft of the core to overlie the body of the core. The plate is configured at its central opening for lockingly keying with the shaft releasably to couple the locking plate with the shaft and to secure the core in the drive ring.

Abstract: A hand tool for winding awning springs is provided. The tool includes an elongate hollow sleeve having an elongate handle member perpendicularly joined to the sleeve and having two handle arms angularly disposed at one end of the sleeve. The hollow sleeve is slotted to define a spring chamber which receives a predetermined length of an awning spring therein. At the end of the winder opposite the handle member is a recessed slot which terminates in a circumferential notch adapted to engage an awning spring leg. A stop member affixed to the handle member and in a sliding relationship therewith, slides along the handle member into the spring chamber to engage the awning spring.

Abstract: An improved apparatus for extracting a cork from a bottle, such as a wine bottle.The device of the invention is designed to remove the cork from the bottle using gas under pressure flowing through a hollow needle adapted to penetrate the cork. The source of gas is a small pressurized gas container, or alternatively, a hand pump which is readily interchangeable with the gas container. The device also includes a safety shield which surrounds the needle so as to prevent accidental needle puncture during operation of the device.

Abstract: A prying blade (42) having an essentially triangular forward portion (43) is secured to a pipe handle (41) at an angle (D) of between about 20.degree.-25.degree.. The triangular forward portion is formed with a rounded or blunt apex region (47) and the two lateral sides (45a, 45b) have notches (44) therein, leaving teeth therebetween. The notches can engage nails for prying up roofing nails together with roofing shingles. The rear portion of the blade (49) is secured to the handle at a point rearwardly of the apex region, for example by welding, to form with the handle a triangular structure. The prying regions of the blades are thus securely supported. The triangular arrangement permits placement of the apex region of the prying bar between nails and removal by the notches in the sides (45a, 45b), or direct prying by the prying bar of a nail caught at the apex region.

Abstract: A ratchet wrench having an auxiliary triangular cross-sectioned stub shaft projecting therefrom for engagement in the chuck of a power drill. With the ratchet held in one hand, the power drill can be operated with the person's other hand to rapidly spin a nut or bolt off of (or onto) a threaded work member. The ratchet wrench can be operated alone (with the drill removed), to achieve a manual torquing or unloosening of the nut or bolt. The invention reduces the time required to install or remove a nut or bolt.

Abstract: A workpiece (1) is fixed by means of a chuck (4) and rotates with a spindle (3) in a headstock (2). A first cam (30) is fixed to the main shaft of the spindle. Its control surface guides a feeler roller (31). A rotary pulse generator (8) is actuated by the rotation of the spindle shaft. An auxiliary motor (10) is disposed on a cross-slide (12) and causes an auxiliary shaft (21) to rotate. The pulse generator produces synchronization between the spindle shaft and the auxiliary shaft. The latter bears a second cam. According to the position of the cross-slide, the exact location of teh tools (16, 17) is determined by the first cam or by the second.

Abstract: A hydrostatic spindle device has a housing, a hydrostatic radial bearing at each end of the housing, a spindle rotatably and translatably supported by the hydrostatic radial bearings, and extending through the bearings. A hydraulic motor is attached to one end of the spindle and a cutting tool or workpiece is attached to the other end. The interior of the housing comprises a cylinder in which a piston, fashioned integral with the spindle travels. Pressurized hydraulic fluid suitably introduced by an electrohydraulic servo control system precisely controls the translational position, velocity, and acceleration of the spindle. Hydrostatic thrust bearings at each end of the cylinder prevent the piston, when rotating, from wearing either end surface of the cylinder.

Abstract: A tool for stripping the insulation and screen layers from a coaxial cable has a body in which a plurality of spaced blades is supported by a carrier that is movable toward and away from a cable that may be located in a position to be engaged by the blades. A pawl and ratchet latching device holds the blade carrier in stripping position, but is releasable to enable the carrier to be moved to a position in which cables can be fitted to and removed from the tool. The blade carrier also is movable to an extreme position in which one set of blades may be replaced by another.

Abstract: A surface protective fastener tool for avoiding abrasion of an underlying surface as a threaded fastener is rotated by a tool. Several embodiments of the surface protective fastener tool (10, 50, 70, 100, 120, 160, 200, 240, 260, 280, 280', and 300) are disclosed, each including a sleeve that fits around the exterior of a tool used to rotate a threaded fastener. A resilient cushion or lip (38, 52, 82, 108, 128, 176, 214, 254, 270, 288, 288', 290, and 290') seats against the underlying surface (24), preventing the tool from contacting the surface as it is rotated. In one of the embodiments (70), the blade (74) of a screwdriver shaft (72) is enclosed in a sleeve (80) having an insert (86) formed around the blade and rotatable with it as the screwdriver is turned. The insert includes a cavity (88), sized to fit over the head of a threaded fastener, tending to lock the screwdriver blade in place so that it is less likely to slip from the fastener and mar an adjacent surface.

Abstract: Lathe comprising a main work spindle drivable by numerical control and a turret with several indexing stations, the turret having at least one drivable tool spindle, being mounted on a turret slide for rotation about a turret axis and being rotatable by numerical control about this axis by means of a turret driving device, and also comprising a switchable device for securing the turret against rotation. For positive locking of the turret and for play-free mounting of the unlocked turret, spur gears displaceable relative to one another in the direction of the turret axis are connected to the turret and to the turret slide in a rotationally fixed manner, and a bearing is provided for the turret which in the unlocked state of the latter is free from play.

Abstract: Screw (15) with differentiated sections for corkscrews (10) which consists of a pivotal (14) element (17) for connection to a lever body (11) of the corkscrew (10), a screw body (18) formed with a plurality of helices (19) and a point (20), the screw body (18) comprising at least two segments of a desired length (L1-L2), which contain a desired number (n1-n2) of helices (19) and consist of helics (19) having sections of a differentiated size (S1-S2), the section S2 being smaller than the section S1 by a desired value.

Abstract: Cutter inserts are provided with a circumferential primary bevel whose width is between 0.05 to 0.2 mm and which has an angle of inclination downward from the top surface of between 20 and 35 degrees. The primary bevel is adjoined by a secondary bevel which has a width between 0.5 and 2.0 mm and an inclination downward from the top surface between 5 and 15 degrees. The primary bevel is at an angle .alpha. between 5 and 15 degrees with respect to the secondary bevel. At the corner radii the secondary bevel comes to an end and thereby forms the strengthened area.

Abstract: A threading insert is provided of a type that includes a mount portion and a plurality of arms radiating therefrom that each forms a pair of cutting edges, which is rugged, facilitates accurate positioning of the insert on the tool holder, encourages reliable breaking of cutting chips, and enables internal threading in a small diameter hole. One insert includes four arms (34-40, FIG. 3) radiating from a mount portion (24), with each arm having a radially outer edge (52) and a pair of opposite sides (54, 56), and forming a cutting edge (58, 60) at the interception of each side with an end of the outer edge. The mount portion has four flat locating surfaces (42-48) lying at the sides of an imaginary square, with each locating surface lying between a pair of arms and with there being an obtuse angle (D) between each locating surface and an adjacent side of an arm.

Abstract: In a method of manufacturing a photoreceptor base drum by a lathe-turning machine in which a cutting tool is brought in contact with a surface of the base drum and travels in the axial direction to finish the surface of the base drum into a mirror-like surface, a main cutting edge formed by a rake surface and a front flank surface on the cutting tool is shaped as a curved surface with a radius of curvature of 0.15 to 3.5 .mu.m, and the rake surface and the front flank surface are shaped to smoothly continue to the curved surface of the main cutting edge.

Abstract: A method for cutting nonmetallic materials such as wood, wood composites, and graphite composites using a ceramic composite router of unitary construction is disclosed. The ceramic composite material is comprised of an alumina matrix reinforced with silicon carbide whiskers.