Abstract: A vehicle tire with protruding nibs rolls down a ramp and into the device and begins to be rotated thereby. Knife means facing into the direction of rotation of the tire are skimmed over the left sidewall, the tread, and the right sidewall of the rotating tire at least once to trim off the nibs. Then paint is preferably sprayed upon the tire sidewalls, whereupon the processed tire is ejected from the device by application of brake means, preferably in combination with bumping the tire being ejected from the rear with another tire entering the device for processing. Cycling of the device may be automatically controlled. In the spray-painting operation, black paint may be applied to one sidewall as white wall protector is applied to the other.

Abstract: A diametrically-enlargeable cylindrical drum portion, preferably comprised of a plurality of movable segmental elements, each of U-shaped or other configuration having a pair of spaced legs or sides, which are resiliently flexible toward one another, mounted in a circuitous pattern on a rotatable member to form outwardly-projecting inner and outer generally concentric annular shoulder formations. The outer such formation provides a segmented hub for receiving a disc by its center opening, such hub being expandable against the opening in the disc to center the latter, as a result of moving a tapered actuator against the inner such annular formation, such actuator preferably comprising a conically angled ridge formation on a rotatable element which is movable into registering contact with the first such member.

Abstract: An apparatus and a method for carving a design in a transparent substrate of the type capable of having substrate material removed by a rotary routing action. A design pattern is applied to one surface of the substrate, as by means of a removable transparent label or the like, which carries lines representing the design pattern. The substrate is located on a table which is, in turn, mounted on and normally biased upwardly from a base housing. When the substrate is disposed upon the table and the table is pushed downwardly toward the base housing, a cutting member will project upwardly a selected distance through an aperture in the table for engaging the substrate in cutting action. The cutting member is rotated by a motor in the base housing. Switch means is provided to automatically energize the motor when the table is lowered but before the cutting member engages the substrate so that the user can use both hands to guide the substrate over the table top.

Abstract: An improvement in a continuous flexible drive, preferably a chain, broaching machine in which a transmission, preferably a worm-worm gear speed reducer transmission is connected to a driving motor and to a sprocket, or a pair of sprockets, carried by a drive shaft which in turn is connected by chain means to a sprocket or a pair of sprockets on a shaft which drives the chain means of a chain broaching machine. The input unit including the transmission is designed in conformity with the drive end of the broaching machine to permit placement of input drive mechanism in different positions so as to provide freedom in placement of a plurality of broaching machines without interfering with each other.

Abstract: A spade drill characterized in that the slotted blade clamping end of the holder has non-symmetrical oppositely disposed blade clamping faces, each of which extends close to the cutting end and cutting diameter of the blade on the side of the blade opposite to the side containing one cutting edge thus to provide firm support for said one cutting edge and is beveled at its end to provide a wide divergent passage for free passage of chips from the other cutting edge to the longitudinal obtuse angle groove of the holder which intersects such divergent passage at its wide end.

Abstract: Automatically adjustable stop for establishing limit of hydraulically powered axial advance for a milling spindle head with positive means for holding the spindle in fixed advance position during the milling operation along a plane normal to the spindle axis and with automatic gauging means for determining need for adjustment of stop position and gauge responsive means for automatically effecting such adjustment in the stop position while the spindle head is retracted from operating position.

Abstract: A collet assembly comprising a spring body member having a cylindrical rear portion and a plurality of spring fingers extending axially therefrom, with an annular bead on the external periphery of the spring fingers near the distal end thereof. Work gripping pads for gripping the exterior of the workpiece are mounted on each of the fingers, and the pads have a groove on the interior thereof for mounting the pads on the beads on the spring fingers. The pads have an exterior surface which forms a frusto-conical cam surface for cooperative engagement with an actuator sleeve, and the pads are free to rock slightly axially on the beads when the collet is opened or closed.Also disclosed are the spring body and the pads for use therewith.

Abstract: A clamping arrangement for securing a cutting bit insert in a tool holder. The bit is held by an elongated lever like clamp that pivots on one end and is urged down against the bit by a retaining screw, the bit and clamp are accomodated within an inwardly sloping recess in the tool holder, and the parts are dimensioned such that the top of the clamp lies below the imaginarily extended surface of the tool holder, whereby hot cut chips from the workpiece are prevented from contacting and damaging the clamps.

Abstract: A shaving cutter having a circular array of teeth of the same number and approximate size as that of a gear to be shaved, and having cutting edges at one end of the teeth of identical profile as that to be formed on the gear teeth, the teeth of the cutter being backed off to provide cutting clearance and dimensioned to be received simultaneously in all of the tooth spaces of the gear with circumferential clearance. Relative reciprocation is provided with timed relative circumferential depth feed to shave first one side and then the other of the gear teeth. The teeth are provided with cutting edges occupying different planes to avoid having all teeth initiate cutting action at the same time.

Abstract: A turret head for a rotary turning machine having a base rotatably mounted on a cross-slide for movement about a first axis. The turret head is mounted to the base for rotatable movement relative thereto about a second axis that is inclined to the first axis by an angle .alpha.. The turret head includes two rings or annular arrays of tool holders. Each ring has its tools disposed so that their axes lie on the surface of an imaginary cone having a vertex angle of 2.beta., such that .alpha. + .beta. = 90.degree.. The two imaginary cones have their axes coincide with the second axis and preferably the vertices of the cones coincide, so that the cones are mirror images of each other.

Abstract: An improvement in a boring bar assembly is disclosed. The improvement relates to a lateral bar assembly in combination with the adjustable boring bar assembly of U.S. Pat. No. 2,838,316 issued to Albert Thomas, a co-inventor of the present invention. The improvement includes a lateral bar to which a major portion of the shank member of the boring bar assembly is removably fixed. The lateral bar has a plurality of longitudinally spaced threaded receptacles into which an end of the shank may be screwed. The shank may be selectively screwed into the lateral bar to thereby change the diameter of the boring bar assembly. The lateral bar may be varied in overall length with the number of receptacles likewise varied to thus vary the magnitude of the ranges of diameters of operation of the boring bar assembly.

Abstract: Machine tool structure designed to reduce the noise incident to operation. The invention is illustrated and described as applied to a vertical broaching machine in which the frame structure is modified by supporting the operating components on a vertical slab or thick plate reinforced with longitudinally extending ribs and including an open truss type support rather than the conventional hollow or enclosed columnar frame in common use.

Abstract: Upper and lower milling cutters scalp the top and bottom surfaces of an ingot as the ingot is advanced between the cutters by a carriage. The carriage comprises a pair of laterally spaced and longitudinally movable slides which support sharp-pointed plungers adapted to dig into the sides of the ingot to clamp and support the ingot for movement with the slides. The carriage formed by the slides and the plungers is of open-ended construction and is adapted to move into and out of straddling relationship with the ingot in order to reduce the dwell time of the carriage when picking up and releasing the ingot.

Abstract: Machine tool apparatus for handling routine pallets and priority pallets with loading and unloading stations comprising a plurality of machine tools for performing machining operations on a workpiece mounted on a pallet; main conveyer means for carrying a pallet in one direction, buffer conveyer means for storing a pallet to be loaded onto a machine tool; return conveyer means for returning a pallet to an unloading station; pallet transfer means for moving a pallet among the conveyer means, stations and machine tools; and central control means for controlling the machine tools and the conveyer means; the pallet transfer means being responsive to the central control means for carrying a priority pallet from the main conveyer means to one of the machine tools and being responsive to the central control means for moving a routine pallet from main conveyer means to the buffer conveyer means and from the buffer conveyer means to one of the machine tools only when the machine tool on which the routine pallet is to

Abstract: A cutting tool consisting of a cylindrical stem and shank separated by a greater diameter body, the body and stem defining a shoulder, an annular cutting surface including a ring of teeth separated from each other by a flute, a larger diametered bore extending coaxially from the cutting surface into the body and a smaller diametered bore continuing through the body and shank.

Abstract: An automatic lathe wherein the carriage for an indexible tool turret is biased against a stop and can be moved toward the work spindle by a rotary cam which is driven by a hydraulic motor and is arrested by a hydraulic brake when the carriage reaches a selected position. The motor is automatically decelerated to crawling speed prior to complete stoppage of the cam and the brake is applied subsequent to deceleration of the motor and simultaneously with opening of an arresting valve which connects the supply and return conduits for the motor. The supply conduit continues to receive some pressurized fluid while the motor is at a standstill. Abrupt acceleration of the motor is prevented by maintaining the arresting valve in open position after a motor valve increases the rate of fluid flow from a pump to the supply conduit and by closing the arresting valve simultaneously with disengagement of the brake.

Abstract: An articulated swivelling boom combination adapted to carry on one of its extremities a device, such as a camera, which it is desired to be able to move about smoothly in any direction of 360.degree. in a given plane within a predetermined area. The combination comprises an elongated rigid member mounted intermediate its ends for swivelling about a vertical axis in a predetermined arc of rotation with a secondary rigid element similarly swivellingly mounted in the vicinity of each of the ends of the rigid member. The device is mounted on the free end of one of the secondary rigid elements and counterweighting is provided on the free end of the other of the two secondary rigid elements. The two secondary rigid elements may be oppositely directed and their swivelling mounts interlocked by a gear and belt arrangement. Thereby, any movement of the device on the free end of its secondary rigid element produces a compensating counterweighted movement of the other element.

Abstract: A quick-change collet is disclosed with a tool holding insert, fitted in a collet sleeve and with a locking device releaseable by an outer sleeve for retention and driving the insert in the collet sleeve. The outer sleeve is rotatably journalled on the insert and the bearing is so connected with the insert that the insert accompanies the outer sleeve when this is used as a hand hold to move the insert with tool out from the collet or to place it in the collet.

Abstract: A longitudinally sectioned collet pad having plural pad segments of the detachable type, such as are conventionally used in an expansible collet, is provided with a freely interchangeable liner for each pad segment. Fastening means secure each liner against the inner surface of an outer member of the pad segment, and hold the liner against movement, either circumferentially, or radially inwardly.Liners for each pad segment are provided with a roughened inner surface, preferably with serrations, to grip a bar of stock by coaction of the pad segments. Interchangeability of liners obviates the need for integral pad segments, permits the use of liners for a wide range of stock diameters using the same outer members of the pad segments, and effects great economy in the manufacture and use of removable collet pads.

Abstract: The present invention relates to the removal of an under-the-sink waste disposer; and more particularly relates to a tool for facilitating the removal of such a waste disposer that must be removed for replacement or for repair. The disclosed tool obviates the need for a plumber to crawl into a small cabinet, and to struggle with corroded and rusted fasteners. Instead, the disclosed tool permits the plumber to work from above the sink, where there is plenty of room.A portion of the disclosed tool is dropped into the sink drain; and cuts away the element that supports the waste disposer. In this way, the plumber may work with ease; and may remove the waste disposer from the under-the-sink cabinet when the disposer has been completely freed from the sink.