Abstract: A tool fastening system for woodworking machines or the like wherein the tools or tool collars carry radially directed means for releasably securing the tools or collars to a drive shaft or axle in such a manner that the tools or collars may be positioned at any axial position along the axle regardless of the width of the tool or collar and without the use of spacers.

Abstract: A conventional single spindle automatic screw machine, which includes a number of conventional operating machine mechanisms to perform the machine functions, is retrofitted with air cylinder/air solenoid combinations actuatable by electrical signals to control the operational sequence of the machine mechanisms, replacing the existing mechanical system of trip drums and trip dogs which perform that function. Also, the driving means which control the movement of the turret and the cross slides, and hence, the machine tool, relative to the work piece, is disconnected from the machine motor and made independently controllable by the addition of servo or stepping motors which are actuatable by external electrical signals. The electrical signals for control of the added motors and the air cylinder/air solenoid combinations are provided by a numerical control apparatus.

Abstract: This invention relates to a self-threading nut which is utilized to hold a replacement shock absorber within the cylinder housing of a vehicular suspension system commonly referred to as a MacPherson strut suspension system. The nut includes a generally cylindrical main body portion having a tapered threaded portion on the inner wall thereof. A plurality of apertures are formed in the side wall of the main body portion to provide positive lead angle cutting edges and permit the removal of metal chips therefrom. The lower end of the nut is formed with an inner diameter corresponding to the outer diameter of the cylinder, and the upper end wall includes a plastic bushing having an inner diameter corresponding to the diameter of the piston rod of the replacement shock absorber. The inner diameter of the lower end and the plastic bushing cooperate to center the nut as threads are formed on the outer wall of the cylinder.

Abstract: The invention relates to work holding and is concerned with the provision of a work holding device which is more efficient than known devices. According to the invention a work holding device comprises a device for gripping a workpiece, the device being provided with internal detection means for determining the value of a force between the device and the workpiece. The value of the force can be displayed for the benefit of a user of the device. It can also be used for control purposes.

Abstract: A drill guide assembly including a guide having a base with a predetermined transverse dimension and a plurality of guide channels formed therein in spaced apart relation wherein the transverse dimension of the base is sufficient to provide a linear path of travel of a drill bit passing therethrough and into a work piece. A positioning arm attachable at least one of two spaced apart points along the length of the base wherein the positioning arm has one end engaging the work piece so as to establish a predetermined angular orientation between the work piece and the base and particularly the drill passing through the base into the work piece.

Abstract: A drive system for a multiple spindle machine tool which includes a separate servo motor for powering the drum shaft which serves as the basic control element for the timing and movement of tools which are operable upon the workpieces carried in the spindles. The speed of the servo motor is regulated by a tachometer in a feedback loop to hold the speed of the motor at any chosen value. The drum shaft rotates at either high speed during tool traverse or low or feed speed during machining operations. A second tachometer driven by the spindle drive system generates a signal proportional to the spindle speed and that signal coordinates the low feed speed of the drum shaft with the spindle speed. Conventional clutches for high-speed and reverse operation of the drum shaft are replaced by switches and potentiometers.

Abstract: A generally cylindrical, rotatable housing contains, against material axial shifting but with limited permissible lateral shifting, an approximately coaxial peening stem as a peening tool. An outer end of said tool, projecting from the housing, is formed with an encircling, continuous peening groove. The housing is formed with an uninterrupted circular series of inwardly facing projections within which the peening stem extends somewhat loosely. Upon rotation of the housing, forceful holding of a workpiece's metal edge in said groove while the workpiece is moved translationally, causes the peening tool to be rapidly hammered laterally, successively by the projections of said series; this hammering effect being transmitted by said tool to said metal edge whereby said edge is peened and deburred.

Abstract: Improved throw away insert and end mills suitable for use with such an insert. The throw away insert has cutting edges which have a convex arcuate shape and have an identical radius of curvature larger than that of the circle circumscribing it at the noses thereof.

Abstract: A silent feeder for revolving bar stock has a horizontal elongated feed bed with a beam supported by plural columns. Spaced adjustable holders are mounted on the feed bed at opposite sides of the stock, and each holder has a plurality of rollers bearing on the circumference of the bar stock, the rollers being preferably resiliently loaded radially of the bar stock.

Abstract: A machine tool having an extendable ram carrying a tool at its free end and having a stiffening beam extending along the ram and pivotally connected thereto at an intermediate location.

Abstract: The present invention relates generally to numerically controlled contour machining, and particularly to an apparatus and method for performing such operations on a "bar-type" horizontal boring mill using the spindle bar to vary the cutting radius of the rotating cutting tool and the machine table to feed the workpiece toward the cutting tool.

Abstract: A boring head for use in machining the inner surface of a vertical work piece wall having inner and outer surfaces and a central opening therethrough to produce a flat, plane, discoid surface where a boring machine and a boring bar to which the boring head is to be attached are situated adjacent the outer surface of the vertical work piece wall. The boring bar and work piece are positioned to have the boring bar axis of rotation coincident with the axis of the desired final machined discoid surface. A taper shank extending outwardly from a main body of the boring bar projects through the work piece wall opening to fasten to the boring bar to position the boring head in adjacent relation to the inner surface of the work piece wall. A tool slide extends longitudinally outwardly from the main body radially of the axis of rotation of the boring bar.

Abstract: This invention relates to a portable facing machine for cutting a large flat face on a large piece of equipment. The machine includes a frame, which is adapted for supporting the machine in a selected attitude. A spindle support is mounted on the frame and is longitudinally movable in the frame. A head depth control is connected to the spindle support and moves the spindle support relative to the frame and locks the spindle support in a selected position relative to the frame. A cutter support is rotatably mounted in the spindle support and moves with the spindle support. The cutter support includes a head, with a slide mounted in the head. The slide is radially movable in the head. A cutting tool assembly, including a cutting tool, is mounted on the slide, is rotatable with the cutter support, and is radially movable relative to the head. A head drive is connected to the head for rotating the cutter support.

Abstract: A cutting insert, especially for milling cutters or the like, which is receivable in a holder and which insert has linear edge portions which meet at the corners of the insert. The insert is indexable in the holder to present a selected edge to work to be done. Each of the edges of the inserts are serrated or notched with respective edges embodying different numbers of serrations or notches so that the inserts can be arranged in the holder to cut completely across a surface with each insert taking only a portion of the surface.

Abstract: A drill assembly has two inserts clamped in the respective radial recesses formed in the body. One insert has a straight edge and the other insert has a notched edge. The arrangement is such that the notched edge of the other insert is disposed slightly above the straight edge of one insert.

Abstract: A door boring jig system for aligning a cross bore and edge hole in a door, including a pair of spaced clamping jaws; a bore hole in one clamping jaw locating the position of the cross bore; adjustment means for moving the clamping jaws toward and away from each other to adjust to the width of a door to be bored; a bushing mounting hole in the other clamping jaw aligned with the first bore hole; a split bushing having a flange at one end and a hinge at each end, each hinge including a pair of pins mounted in separate parts of the split bushing and a link pivotably mounted to both pins; each link being loosely fitted to at least one of the pins to enable the bushing parts to slide or translate as well as pivot or rotate relative to each other; guide means mounted between the clamping jaws remote from the first hole and bushing mounting hole and having an edge hole guide for defining the position of the edge hole; and edge bevel accommodator means including first and second mounting means carried by the guide m

Abstract: A lathe, wherein its turret kinematically associated with a drive for its indexing, carries on its face a plurality of tool-holders and has a plurality of teeth on the peripheral cylindrical portion thereof, the number of said teeth corresponding to the number of the tool-holders, said teeth being adapted to interact with the actuating member of the mechanism for turret fixing in position. The turret indexing drive is essentially a reversible electric motor, and the turret fixing mechanism comprises a solenoid whose armature is associated, through a linkage, with the actuating member; provision is also made for a pickup adapted to monitor the turret teeth travelling through the zone of fixing, said pickup being electrically connected, through a switch, to the solenoid and motor control circuits.

Abstract: A tapered and curved internal diameter is formed within a tube used as a continuous casting mold by feeding the tube lengthwise along an arc which is tangent to the axis of the spindle of a boring mill having a rotatable boring head arranged within the tube for cutting the interior wall thereof. The boring head and spindle revolve about a fixed axis, but the boring tool or cutter carried by the head is gradually moved transversely of the spindle axis while the tube is advanced along the arcuate path. Thus, the opening within the tube is tapered from one end to the other, and is also curved, wherein the tube is useful as a continuous casting mold and the like.

Abstract: A mandrel arrangement for mounting a pipe machining tool for rotation relative to at least one end of a pipe bend to be machined. Locating plate means are detachably mountable on the mandrel for positioning the mandrel in the pipe bend in a predetermined location. Clamping means are provided on the mandrel for clamping the pipe means in the predetermined location. A mandrel shaft means is detachably mounted to the mandrel adjacent one or both of the ends thereof for receiving the pipe machining tool to machine the ends of the pipe bend. The locking means is cam actuated to frictionally clamp the mandrel in the pipe bend at the predetermined position and the structure of the cam operated locking means allows utilization of the pipe mandrel in comparatively small internal diameter pipe bends.

Abstract: A magnet base drill having a pair of plates formed of magnetic material removably mounted on either the side walls or the bottom face of the electromagnet forming the base of the drill and adjustable thereon to contact portions of a convex support surface spaced laterally outwardly from the central lonitudinal axis of the electromagnet when the latter is positioned on the support surface.