Abstract: A circular hole cutting apparatus comprising a support frame, having a forward end, a rearward end, a lower end, and an upper end; the forward end forming a cutting bit mounting means, capable of rotatably retaining a cutting bit so that the upper end of the cutting bit may upwardly extend from the upper end of the support frame, and so that the lower end of such a cutting bit may downwardly extend from the lower end of the support frame; and the lower end of the support frame forming a radius arm mounting means, the radius arm mounting means being capable of adjustably retaining a radius arm, so that the rearward end of the radius arm may alternately extend rearwardly from the rearward end of the support frame and retract forwardly from positions rearward of the rearward end of the support frame.

Abstract: A machine tool comprises a workpiece table which has a clamping surface for workpieces to be machined and a spindle head displaceable in a working space above the workpiece table relative thereto by means of a shifting mechanism and having a spindle receiving tools for machining the workpieces. The shifting mechanism comprises three carriages movable orthogonally to one another, of which the second carriage is mounted displaceably on the first, and the third carriage displaceably on the second carriage, the spindle head being joined to the third carriage. The first carriage is arranged behind the working space and above the clamping surface, preferably above the working space.

Abstract: A shaping tool for the stock-removal machining of wheelsets. The tool contains a shell-end milling cutter comprised of a disc-shaped body with a multiplicity of cutting edges which overlap each other and are disposed spirally staggered on pitch circles on such disc-shaped body.

Abstract: An apparatus for processing the cylindrical shells of drums, which comprises a cradle sized for reception in embracing relation with the shell, the shell having a longitudinal axis, the cradle having support structure to clamp a cylindrical surface of the shell and at lengthwise locations, for supporting the shell; structure operatively coupled to the cradle to effect displacement of the support structure to clamp the shell surface; structure for rotating the cradle about an axis corresponding to the drum shell axis, thereby to rotate the shell about the axis; and tooling facing the shell to engage and process the shell as it rotates.

Abstract: The present invention comprises a ceiling tile cutting apparatus for the cutting and edging of successive tiles with corresponding angular cuts in a corresponding manner. The apparatus comprises a plurality of vertically arranged support legs connected by a plurality of horizontal members and a planar table member of generally rectilinear configuration attached at the upper end of the support legs. The table member has a first or proximal edge, a second or distal edge parallel to the first edge, a left hand edge and a right hand edge generally parallel to the left edge. An elongated slot extends through the table member parallel to the right hand edge of the table. A pair of guide rails supported over the elongated slot, and a motorized cutting tool mechanism is arranged to slide on the guide rails, with a cutting tool extending into the slot. An adjustable telescopable ruler is pivotably arranged on the table.

Abstract: A gear finishing apparatus with helix compensation is disclosed, in which a helical gear is supported and rotated on a table by a gear holder and a tail stock, a finishing wheel is supported and rotated on a slider that can move toward and away from the finishing wheel in a substantially perpendicular direction to the gear axis, and the table and the slider are structured to relatively reciprocally move in the gear axis, wherein the gear holder comprises a drive motor for rotating a holder shaft for holding the helical gear; and a compensation drive unit by which a motor drum holding the drive motor is rotated about the gear axis, thereby compensating the circumferential speed in accordance with the helix angle of the helical gear during the relative movement of the helical gear and the finishing wheel in an axial direction of the gear and realizing high accuracy in the tooth profile of a helical gear.

Abstract: A bore slotting machine for cutting radially spaced longitudinal slots in sleeves for automotive power steering units comprising a cutting face adapted to operate with a bore of a component being worked; a motorized drive adapted to impart reciprocating motion to the cutting face; a positional feedback device associated with the cutting face and adapted to communicate with a computer; a chuck adapted to hold a component being worked at a location adjacent the cutting face and being supported for indexible rotational movement about a Y axis substantially parallel to that of the bore in the component being worked; a first shuttle carriage carrying the workholding device such shuttle being adapted for linear motion perpendicular to the bore axis of the component under the influence of a first servo drive; a second shuttle carriage adapted to carry the cutting face and associated motorized drive such that movement of the second carriage achieves linear reversible relative motion between the component being worked

Abstract: An apparatus and method for making an elongated hole in a pipe which includes drilling a rotating conical tool through the pipe wall by pushing the conical tool in the direction of its rotating axis to a desired depth, then simultaneously lifting and tilting the conical bit so as to mill one end of an elongated hole. The rotatable conical tool may be lifted and tilted in the opposite direction to further mill the pipe and elongate the hole. Tilting is effected relative to a pivot point located above the top pipe surface and in a plane extending through a center axis of the pipe, and the angle of inclination can be adjusted for determining the length of the finished hole.

Abstract: A tool unit according to the invention has an arrangement wherein a shaft-like mount portion having a step is disposed on one of a tool body or a tool holder. The other of the tool body or the tool holder, includes a recessed fitting portion or bore shrinkage-fitted on the mount portion and having a step. The fitting portion includes a hydraulic feed passage for externally feeding a high-pressure oil to a gap defined between the step of the mount portion and the step of the fitting portion. In mounting the tool body to the tool holder, the high-pressure oil is externally fed to the gap through the hydraulic feed passage. Thus, a thin layer of the high-pressure oil is formed between the shrinkage-fitted surfaces, while on the other hand, the tool body and the tool holder are drawn close to each other. This facilitates the correction of inclination or axial displacement of the fitting portion relative to the mount portion, which occurred during the shrinkage-fit process.

Abstract: A machine tool comprises a working space in which workpieces are to be machined and which is closed off against the outside by a case. The case comprises an opening, that can be closed by at least one sliding door and that gives access to the working space. The sliding door comprises vertically arranged slat elements that are connected one with the other by hinge connections.

Abstract: A machine tool comprises a spindle having a tool receptacle for receiving tool holders in their working position. A tool changer is provided for conveying a tool holder in a first changing step between a magazine position and a spindle position at said spindle. Further provided is a linear stroke mechanism for conveying said tool holder in a second changing step between said spindle position and said working position. A common drive mechanism is linked to said tool changer and said linear stroke mechanism such as to affect both said first and second changing step.

Abstract: A method and apparatus for making non-circular piston rings which will precisely sealably conform to the cylinder wall of an internal combustion engine. In accordance with the method of the invention a metal strip of special cross-sectional configuration is coiled about a specially configured mandrel which is non-circular in cross section. Preferably the coiling mandrel is provided with a circumferentially interrupted thread form that has a zero helix angle along most of its circumference. During the coiling operation, using this type of mandrel, the metal strip is preformed at specific locations along its length into an angled configuration to form a coil body having a plurality of coils that have a zero helix angle along most of their circumference and a relatively steep helix angle for a short distance. After the coil is formed, the helix angle portions are cut therefrom to provide a plurality of generally planer, interrupted rings.

Abstract: An improved coupling system for lockably coupling machine tool components is provided that includes a male coupling, a female coupling having an axis, a pair of opposing jaw members having lock surfaces for engaging ledge surfaces in the male coupling when the jaw members are moved apart, and a drive train having first and second drive spheres for simultaneously moving proximal and distal ends of the jaw members apart. The drive spheres engage ramps on the inner surfaces of the jaw members that have cylindrical profiles to provide lenticular contact between the spheres and the jaw members. Cam and follower surfaces are provided between the jaw members and one of the male or female couplings to enhance the locking force between the couplings. The invention provides a more rigid coupling between the male and female components by providing two locking spheres that operate in tandem to simultaneously spread the distal and proximal ends of the jaw members apart.

Abstract: A termination tool for connecting incoming and outgoing conductors to contact elements in termination modules for a large range of wire diameters. The tool including a housing handle and a pressing and cutting device. The housing handle has a front opening. The combined cutting and pressing device includes a pressure rod with springs a knife carrier with knives sliding in a cam housing and a cover of the cutting and pressing device. The cover sliding during actuation of the cutting and pressing device on the housing handle.

Abstract: A machine tool which has a swingable spindle head comprises a base member 1, a retaining member 5 attached swingably by a support shaft 3 to the base member 1, a spindle head 7 attached onto the retaining member 5, a lateral slider 15 being capable of linearly reciprocating in a linearly reciprocating direction along a chord of a circular arc described by an end portion of the retaining member 5, a longitudinal slider 21 provided in the lateral slider 15 reciprocating in a direction perpendicular to the chord, a connecting shaft 23 pivotally connecting the retaining member 5 to the longitudinal slider 21, and a linear drive system connecting to the lateral slider 15. When the linear drive system drives, the retaining member 5 can be swung around the support shaft 3, so that swing of the spindle head 7 can be permitted.

Abstract: A gear-cutting machine contains one driving motor (28) with a corresponding actuator (26a, 26c . . . ) for each of various adjusting axes (B, C, X, Z . . . ). The actuators are supplied from a common dc intermediate circuit (24) and controlled by a controller (30). The dc intermediate circuit (24) is supplied by a rectifier circuit (22) from the network (20). For defined stopping of at least some of the driving motors (28) of the adjusting axes an emergency power supply is provided. The emergency power supply contains an ac motor (34) with a disk flywheel (36) mounted on the output shaft (38) thereof. In generating service of the ac motor (34) the latter provides direct-voltage energy to the ac intermediate circuit (34) via the actuator/rectifier (40). This energy suffices for at least some of the driving motors (28) to be brought into a state of rest by their corresponding actuators in controlled fashion. This avoids errors when operation of the machine is continued.

Abstract: A wire-insertion and cutting head for a telephone wire installing impact tool has a plurality of unitary wire-insertion and cutting blade elements embedded in a single resilient cutting blade support block. Each wire-insertion and cutting blade element has both a wire-insertion blade and an increased thickness knife edge molded as a single continuous hardened steel element. The knife edge is located relative to the slot in the cutting blade to ensure that the knife edge will consistently and reliably effect a clean cut of a respective wire against the surface of the terminal receptacle, as the wire is urged into the terminal receptacle by the blade during operation of the impact tool.

Abstract: A unitary frame structure is disclosed as well as a method of manufacturing the same. The unitary frame structure typically includes a first beam, a second beam adjoining the first rib, and a cross member adjoining the first rib and the second beam. Significantly, each of the first beam, second beam, and cross beams have a Z shaped cross-sectional structure formed by a first flange that is adjacent a substantially vertical portion further shaped with a second flange adjacent an opposite end of the first flange. This Z cross section is formed by machining a unitary pallet in a first vertical direction to form the first lip, flipping the pallet and then machining in a substantially vertical portion in the opposite second vertical direction to form the second flange on an opposite side of the substantially vertical web section only. Placed periodically along the rib sections are stiffening elements formed during the machining operation.

Abstract: A vertical broaching machine comprises a machine stand having an upper rail and a lifting carriage displaceably guided on the stand and drivable by means of lifting spindles which are supported in spindle nuts lodged in the rail for rotational driving. An upper workpiece holder is mounted on the rail, holding a broach when a compressive broaching job is carried out.

Abstract: An apparatus and method for compensating a radial load between relatively axially articulatable inner and outer members, which in the exemplary embodiment are a spindle cartridge and spindle housing of a slip spindle drill assembly. The apparatus includes a strut having a curved inner end seated in a first seat on an outer surface of the inner member, and a curved outer end seated in a second seat supportably retained by a cap disposed adjustably in an opening through the outer member. The strut applies a radial force between the inner and outer members to compensate for the radial load. The strut is also pivotally disposed between the inner and outer members, whereby the strut pivots during relative axial articulation therebetween. The strut is substantially disposed radially relative to a direction of axial articulation when the inner and outer members are relatively axially articulated approximately one-half the axial articulation range.