Abstract: The present invention is a one piece sleeve for a rotary valve, the sleeve comprising an array of communication slots formed in the bore of the sleeve, characterized in that at least a portion of the floor of one of said slots is convex. Figure depicts sleeve (1b) with arcuate slot (21b) which has a convex floor and is open ended at both axial extremities of surface (17b) of bore (16b) of sleeve (1b). This slot may preferably be used as a return slot on the sleeve.

Abstract: A high speed machining machine-tool including a mechanical module having a machining station and a driving station and an equipment module with “n” number different parts located up line. The module bases are connected to a common supporting frame, with the mechanical module being fixedly connected thereto. The equipment module is connected to the machine so as to slide on its longitudinal axis. The different mobile parts of the machine-tool adopt two positions: a first, so-called “folded” position, in which the equipment module and all its parts engage each other and the mechanical module; a second, so-called “extended” position, in which the whole equipment module or a subset of its component parts have slid on the supporting frame towards the rear so as to form a transversal handling passage running through and through the machine. The invention is useful for high speed machining.

Abstract: A method for connecting an attachment to a drill press includes: providing an alignment member including a first portion and a second portion, and having a central axis; securing the first portion of the alignment member within the chuck; connecting the attachment to the drill press so that at least a region of the second portion of the alignment member is disposed within the void; and removing the alignment member from the chuck and the void. A mortising apparatus for a drill press is also disclosed, the drill press including a rotatable chuck. The mortising apparatus includes a mortising chisel holder and a mortising chisel holder alignment member.

Abstract: A machine for forming threads in a cylindrical bone dowel made of bone material, comprising a planar surfaced base provided with a threaded guide member having an externally threaded portion. A holding and rotating assembly is mounted on the base to rotatably hold the bone dowel so that the central axis of the bone dowel extends in the axial direction of the threaded guide member, An essentially planar support member is mounted on the guide member for movement with respect to base and an angle adjustment assembly is mounted to the support member. A cutting assembly having a cutting member in the form of a burr is also mounted on the support member so that when the threaded guide member is rotated the cutting assembly and associated cutting member is carried by support member to engage the bone dowel.

Abstract: A device for use with a press of the type which includes a vertical ram for exerting a force on a first part to press the first part through a second part where the first part falls free when pressed through and separated from the second part comprising, a vertically extending shaft, an arm mounted to the shaft for generally horizontal rotational movement on the arm, a catch receptacle for a first part which is pressed free of a second part, means are provided for mounting the catch receptacle on the arm at varying distances from where the arm is mounted to the shaft whereby the catch receptacle may be positioned under the vertical ram of the press and catch a first part as it is pressed free of the second part.

Abstract: A drilling tool for boreholes in solid material, with a drill shaft with at least one cutter arranged at the end of the drilling tool and at least one recess which extends in the axial direction from the end of the drill tool, to conduct chips from the borehole. At least one of the cutters is made of a coated cermet cutting material.

Abstract: A pipe beveling attachment for a rotary power tool including base means, an arbor sleeve adapter assembly for mounting the base means to the rotary power tool, bearing means in the base means for securing a shank of a pipe beveling rotary cutting tool, and alignment and guide means for cooperatively engaging a pipe wall of a pipe end to be beveled and for accommodating different diameter pipes including removable pins on each side of the pipe wall to provide a slidable cooperative engagement of the base means and pipe beveling rotary cutting tool with the end of the pipe to be beveled. The attachment includes a safety shield for an operator's protection and an optional flexible rotational stopper for preventing the attachment assembly from rotating when the power tool is at idle, generally a circular power saw. An alignment pin extending from the end of the arbor sleeve adapter assembly juxtaposed the power tool is optionally included to engage an aperture in a circular power saw retainer washer.

Abstract: A three-dimensional apparatus for a router for positioning and guiding the router to produce, from a workpiece, at least one of a substantial duplicate of a three-dimensional configuration of a template and a substantial variation of such three-dimensional configuration of such template by routing such workpiece. The three-dimensional apparatus for a router including a workpiece mounting platform for mounting the workpiece, a template mounting platform for mounting the template, a router mounting platform for mounting the router, a router positioning mechanism for positioning the router mounting platform adjacent to the workpiece mounting platform, a probe for tracing the three-dimensional configuration of the template and a linkage interconnecting the probe and the router mounting platform to move the router mounting platform in response to movement of the probe.

Abstract: A movable column is adjustable longitudinally and transversely in controlled fashion on a machine bed which defines a longitudinal direction and a transverse direction. A tool spindle is adjustable in controlled fashion on the movable column along a spindle axis normal to both the longitudinal direction and the transverse direction. A clamping axis is defined by a tool support which is rotationally adjustable in controlled fashion about this clamping axis and includes a clamping device through which a material rod can be pushed and in which it can be clamped. A front portion of the material rod, presenting the workpiece to be machined, is disposed within the working range of the tool spindle. A supply device is provided for pushing the material rod through the clamping device.

Abstract: Improvements made to a router relate to a sub-base alignment system. In a preferred embodiment, the alignment system comprises a plurality of raised bosses which are located on the sub-base at known locations and which engage a plurality of recessed cavities in the router base. Alternatively, the raised bosses may be placed on the router base and the cavities may be located in the sub-base, or a combination of boss and cavity locations may be used. The router base is positioned at a known locations relative to the center of rotation of the router bit. For example, in the plunge router shown, the base is coupled to plunge guide posts, which themselves are coupled to the motor housing at known locations. The coupling of the raised bosses with the recessed cavities places the sub-base at a known position relative to the router base.

Abstract: A process and machine tool for machining workpieces with two parallel work spindles fitted on a headstock. The distance between the work spindles is altered with the aid of a driven adjuster. The machine tool for machining workpieces, especially for numerically controlled machining centers, has two work spindles (1, 2) fitted parallel to each other on a headstock (3), where at least one work spindle (2) can be adjusted perpendicularly to its axis.

Abstract: An inexpensive machine of small size is exclusively used for processing a key groove, requiring no skill. It is so constructed that a voltage is applied to an insulated work table through lead wires. A piece to be processed is reciprocated in left- and rightward directions. A center position of processing is calculated, based on digital displays of conduction signal positions, which left and right contact positions of a cutting tool inserted into a throughhole, in an inner wall of which the key groove should be formed, with the inner wall and a position of processing is set for the cutting tool by means of a scale, which position is fixed by using an eccentric lever. The work table is moved automatically intermittently with a cutting pitch set, linked with an air cylinder.

Abstract: An automatic tool exchanging machine include a machine body such as gear box, a tool exchanging arm having a tool grasping member and supported by the machine body to be rotatable and to be linearly reciprocally movable in an axial direction of a rotation shaft of the machine body, a rotation drive mechanism provided for the machine body, and a power transmission mechanism for transmitting a driving power of the rotation drive mechanism to the tool exchanging arm. The power transmission mechanism is provided with a motion conversion mechanism for converting a rotational motion of the rotation drive mechanism including servo-motors to a linear reciprocal motion of the tool exchanging arm and the motion conversion mechanism is composed of a feed screw mechanism. The feed screw mechanism is a ball screw mechanism.

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 beam, and a cross member adjoining the first beam 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 lip adjacent an opposite end of the first lip. 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 lip on an opposite side of the substantially web section only. Placed periodically along the rib sections are stiffening elements formed during the machining operation.

Abstract: A method and apparatus for converting a finished battery terminal suitable for a first application into a battery terminal suitable for a second application in one operation that does not require reforming of the finished battery terminals by picking the finished battery terminal suitable for a first application from a delivery rack and delivering the finished battery terminal suitable for a first application to a depth stand that includes a cutter which removes a portion of the finished battery terminal suitable for a first application while the depth stand limits the portion removed to thereby form a finished battery terminal suitable for a second application from the battery terminal suitable for a first application and then deliver the finished battery terminal suitable for a second application for shipment to a customer without requirement of further processing.