Abstract: A ring including an ornamental ring portion, and a pair of flanges which are removably mounted onto the ornamental ring portion, the internal diameter of the pair of flanges being sized to fit a user's finger.

Abstract: A lock arrangement for a knitting machine, which comprises knitting implements (3, 3a) mounted to slide in a longitudinal direction (w), with working and control butts (6, 6a; 7, 7a). The lock arrangement (8) includes a take-down lock part (61) associated with the control butts (7, 7a), slidable in the longitudinal direction (w) and each adjustable into an advanced and a retracted position, these lock parts being provided with raising cams (43, 46) running obliquely to the longitudinal direction (w), arranged one after the other and raising the knitting implements (3, 3a) into a tuck position or a knit position, as well as with hold-down cams (42, 45) running transverse to the longitudinal direction (w). In accordance with the invention the slidable lock parts (10, 10a; 11, 11a) are so constructed and arranged that selected raising cams act in their retracted position on the control butts (7, 7a) and selected hold-down cams (42, 45) act in their advanced position on the control butts (7, 7a ). (FIG. 8).

Abstract: The machine comprises two knitting beds (2, 3) and at least one pair of opposed cam carriers (4, 5). These cam carriers are independent and are driven individually, for example by notched belts (10, 13) and motors (12, 15). The elimination of the bow of the carriage makes it possible to provide a large number of bars (17 to 22) for yarn guides driven individually. The yarns arrive at the yarn guides along the shortest path, and the working speed can be increased considerably.

Abstract: A method and apparatus for knitting the neck portion of a sweater cardigan or vest by use of a flat knitting machine carrying at least a pair of front and rear needle beds which are arranged movably in a longitudinal direction. The neck portion is formed subsequent to knitting of the right and left sides of the body.

Abstract: A method and apparatus for use in a circular knitting machine to form an end closure in a knitted tube made of thermoplastic yarn. The apparatus includes a tube constrictor mounted on the knitting machine for constricting the knitted tube formed by the knitting machine to form a generally solid, compact mass. The tube constrictor includes a plurality of constricting elements which define an aperture through which the knitted tube extends. The constricting elements are moveable between an open position and a closed position in which the knitted tube is gathered into a generally solid compact mass. A hot-air nozzle connected to a hot-air source is engageable with the air passage in the tube constrictor for directing a stream of hot air through said passage to sever and fuse said compact mass and to form a heat-sealed closure at one end of the tube segment severed from the knitted tube.

Abstract: An apparatus for removing lint and debris from circular knitting machines has a rotating arm positioned such that its distal end sweeps about the periphery of the machine. A fan motor unit located at the distal end is mounted for 360 degree rotation in a plane perpendicular to the plane of arm rotation, allowing the sweep of air to contact both the machine surface as well as adjacent areas. The fan/motor unit is preferably rotated by an arm mounted rotation motor, coupled to the unit by a commutator. The rotational rates of the central drive and the rotation drive are chosen to allow the path about the machine circumference described by the fan/motor unit to vary upon successive arm revolutions to insure a fan sweep over all machine surfaces.

Abstract: A casual/dress sport sock having a leg-covering portion and a foot-covering portion wherein the knitting stitch pattern of the sock is reversed in the medial area of the leg-covering portion. Thus, the casual/dress sport sock in its extended position comprises a right side out foot-covering portion, a right side out lower area of the leg-covering portion, and a wrong side out upper area of the leg-covering portion. When cuffed, the sock comprises a uniform aesthetic knitting stitch pattern wherein the cuff portion, the lower area of the leg-covering and the foot-covering portion of the sock are all presented in right side out condition when worn on the foot.

Abstract: A padlock which includes a casing, a shackle having spaced grooves on two opposite ends thereof, a gear driven by the spindle of the lock cylinder thereof, two sliding lock plates driven by the gear to lock the shackle in the casing in any of a series of locking positions, and spring and steel ball sets respectively fastened to the locating block at the bottom and releasably engaged into each groove on either end of the shackle to ensure accurate locking.

Abstract: A lock to prevent theft of a marine propeller assembly having a cylindrical shaped housing on which are exteriorly mounted a series of propeller blades, with the open end of the propeller housing being flared outwardly, the assembly further being mountable to a propeller shaft by means of a retaining nut. The propeller lock substantially covers the open end of the propeller assembly and effectively prevents access to the retaining nut and therefore prevents theft of the assembly. The lock has a flat, generally circular shaped face section, with a relatively short wall depending from the perimeter of the face section. The circular shaped face section is formed of two semi-circular sections with the two semi-circular sections being hinged at an edge so they can be closed to form the circular section or opened to form the two semi-circular sections. The depending relatively short wall is angled at an acute inwardly toward the center of the generally circular shaped face section.

Abstract: Apparatus for use in conjunction with an automobile body and frame straightening platform system includes a plurality of moveable jacks which are attachable to the vehicle for raising the vehicle above the platform and moving it so as the longitudinal center line of the vehicle is coincident with the longitudinal center line of the platform system wherein measuring devices will be clearly indicative of the extent of damage to a vehicle and its appropriate repair according to the manufacture's specifications.

Abstract: One end of a rotating workpiece is threaded by using a single threading roll having on one end thereof a plurality of annular threading ribs the diameters and/or pitches of which increase slightly and progressively from one end of the plurality to the other. Initially the roll is advanced diagonally toward the end of the work to be threaded until all of the threading ribs on the roll have penetrated the work only part way to the final depth of the desired thread, after which the roll is advanced parallel to the axis of the work for a predetermined distance. The tool is then retracted and the foregoing threading operation is repeated several times, but with the tool holder being advanced a slightly greater radial distance toward the work with each successive threading operation until the desired thread depth has been achieved.

Abstract: A flat die thread rolling machine provides a cam drive for the reciprocating slide which operates through a linkage to cause reciprocation of the slide. The cam provides a dwell which holds the reciprocating die stationary before the commencement of the working stroke to allow insertion of a workpiece into the dies while the dies are stationary relative to each other. The cam produces slow acceleration of the reciprocating die during the initial portion of the rolling operation to prevent workpiece slippage. The working stroke exceeds one-half of the machine cycle. Die match can be adjusted while the machine is running. Separate adjustment means are provided to adjust the tilt, parallelism, and pitch of the dies, with the pitch adjustment permitting pitch adjustment while the machine is running and without affecting tilt and parallelism adjustment. A hydraulic drive is provided to power the machine and provide high torque during jog operations and speed control during normal running operation.

Abstract: A process of press-forming a strip fed in its longitudinal direction to continuously produce press-formed articles with arbitrary lengths through forming stages including a draw-forming stage, the process comprising the steps of: a first step of continuously forming a semi-finished product having a middle portion formed over a length corresponding to that of a final product and an unformed leading end connected to an unformed following end of a neighboring antecedent semi-finished product, while feeding a strip in the direction of the strip length at a selected pitch; a second step of simultaneously draw-forming the unformed leading end of the semi-finished product and the unformed following end of the neighboring antecedent semi-finished product to a selected shape, the ends being connected to the respective semi-finished products; and a third step of separating scrap from peripheries of the leading end of the semi-finished product and the following end of the neighboring antecedent semi-finished product.

Abstract: Hydraulic feed drives for pressing tools of a flying upsetting press are integrated into closed hydraulic circuits and are driven by displacement pumps, with the hydraulic circuits being pressurized in order to improve the flow dynamics, and with internal regulation circuits and superimposed regulations circuits of the individual control components being provided for improving the regulation accuracy.

Abstract: An air-fuel ratio sensor malfunction detecting apparatus detects the output signal periods of a first or upstream air-fuel ratio sensor, and compares them with a predetermined value to judge the first sensor to be malfunctioning when the periods are larger than the predetermined value. The apparatus also compares the magnitudes of air-fuel ratio control quantities from a second or downstream air-fuel ratio sensor with a predetermined value to judge the first sensor to be malfunctioning when the air-fuel ratio control quantities are larger than the predetermined value.

Abstract: A novel, inexpensive sensor (10) for detecting volatile hydrocarbons and other solvent vapors detects leaks in the fittings and valves of petroleum refineries and chemical manufacturing and processing plants. The sensor comprises (a) a dielectric substrate (12) having a major surface; (b) a pair of interdigitated, electrically conductive electrodes (14a, 14b) disposed on the major surface of the substrate; and (c) a composite coating (16) covering the interdigitated electrodes and comprising (1) a conductive polymer, and (2) a dielectric polymer with an affinity for the solvent vapors to be detected.

Abstract: A method and apparatus for testing the integrity of filter elements is provided. The filter assembly comprises a plurality of filter elements which are subdivided into a plurality of sections. By measuring the gas flow rate under known pressure conditions through all of the sections or a selected portion of the sections, defective filter elements can be isolated in a systematic manner.

Abstract: Herein is disclosed a differential densitometer for continuously measuring total undissolved solids in a liquid. The densitometer comprises:a) a first densitometer having liquid inlet and outlet;b) a second densitometer having liquid inlet and outlet; andc) a filter connecting the outlet of the first densitometer to the inlet of the second densitometer.

Abstract: This invention relates to a method of determination of the deformation of the surface or subsurface of the earth resulting from an applied pressure change at a selected point, at a selected depth, in the earth, by measuring at least one physical parameter of the deformation above the point of application of pressure change. The method involves positioning a plurality of tiltmeters on or below the surface of the earth above the point of application of pressure change arranged in a known array, and measuring the change of angle of tilt of earth's surface or subsurface at the point of placement of each sensor while varying the pressure and flow rate of fluid into or out of the earth at the selected point. This invention further teaches how the individual values of incremental tilt at selected points on or below the earth's surface can be processed to determine material properties at selected points in the earth.

Abstract: Process and apparatus for determination of permeability of porous media by measurement at finite frequency of streaming potential and electro-osmotic induced voltage and pressure due to applied finite frequency pressure oscillations and alternating current, respectively. The inter-electrode distance between points of application and measurement of the alternating signals at a finite frequency is small compared to the wavelength of the pressure oscillations and alternating current voltage.

Abstract: A leak detection system (50) including a flow accelerator for directing and accelerating leaking gas toward a sampling probe (70). A probe input tube (72) is inserted into one end (62B) of a larger diameter adapter tube (60) to position the end of the tube (72) past a suction opening (62D). The other end (62A) of the adapter tube is positioned to receive leaking gas. A suction is applied to the suction opening, which tends to draw the leaking gas into the adapter tube end (62A). Some of the leaking gas is drawn into the suction opening, and some into the end of the sampling tube. The suction causes the leaking gas to be accelerated toward the sampling probe input port. The suction can be created by a venturi (66C) through which is passed a gas under pressure. The acceleration of the gas through the venturi creates the suction. The flow accelerator significantly reduces the time required to locate small gas leaks.

Abstract: A capillary rheometer apparatus includes a housing, a plunger, the housing having a reservoir for receiving the plunger in a polymer melt, and a mechanism for blocking flow of the melt out of the reservoir. A driving mechanism is included for driving the plunger longitudinally within the reservoir to move one end of the plunger in contact with the melt. A diaphragm, which is coupled to the one end of the plunger, deflects in response to melt pressure in the reservoir. A mechanism, responsive to diaphragm deflection, determines pressure of the melt. Another mechanism is included for determining the temperature of the melt and a further mechanism is included for indicating longitudinal movement of the plunger. From such determinations, the PVT characteristics and the apparent shear viscosity characteristics of the polymer melt can be obtained.

Abstract: An improved method and capacitance probe arrangement for determining the fluid phase fractions of fluids having differing permitivity such as those of gas, oil, and water and oil-water emulsion in a fluid stream flowing from an oil well which includes trapping the primarily liquid in a vertically disposed chamber. The liquid is held therein to permit separation of the phase fractions to the extent possible within a reasonable time. A number of measurements are taken of the capacitance at a plurality of discrete vertically spaced locations within the chamber. These capacitance measurements relate directly to the varying permittivity of the phase fractions of the various liquids contained therein which may be gas, oil, and water and a oil-water emulsion. The measurements are processed by a data processor to provide precise information on such phase fractions and emulsion interfaces. A number of embodiments of the novel probe are disclosed for determining capacitance at spaced locations within the chamber.

Abstract: A method for dynamically balancing a plurality of golf clubs on a conventional swing weight scale using radius of gyration as the controlling parameter wherein a specific radius of gyration/swing weight scale designation correlation is derived for a particular set or plurality of golf clubs and, thereafter, other clubs are balanced on a conventional swing weight scale in accordance with such correlation. The present method allows a user to dynamically balance one or more golf clubs to a single, selected radius of gyration, or to a radius of gyration which is driven substantially closer to the selected radius of gyration when so balanced so as to provide improved performance, control and handling characteristics as compared to other known prior art balancing methods.

Abstract: Methods and apparatus are disclosed for testing an internal combustion engine having one or more cylinders each of which has a reciprocable piston which defines a variable volume combustion chamber in communication with intake and exhaust ports that are opened and closed by intake and exhaust valves, respectively. The combustion chamber of each cylinder is either evacuated or pressurized, depending upon the tests to be performed, to establish in such chamber a negative or positive pressure relative to ambient pressure, and such negative or positive pressure is maintained, while the associated piston is reciprocated. The opening and closing of the valves in conjunction with reciprocation of the associated piston causes pressure pulses to be generated which are sensed and analyzed.

Abstract: A unit and system for sensing fluid velocity which is particularly well suited for use in the control system of an HVAC unit. A salient feature of the system is the combination of heat generating structure, a plurality of thermally conductive elements, and thermal insulation between the heat generating structure and a fluid flow path. Each of the conductive elements is in thermal communication with the heat generating structure at one end and the fluid flow path at a second end. As a result, heat transfer to the fluid is channelled through the conductive elements. This achieves a distributed heat flow path which results in an efficient and accurate heat flow measurement.

Abstract: The invention is a monolithic sensor comprising a silicon substrate, a suspended polysilicon microstructure for sensing a condition disposed above and suspended from the substrate, and circuitry for resolving a signal based on said sensed condition, the circuitry including bipolar circuit elements and MOS circuit elements. One disclosed embodiment is particularly adapted for sensing acceleration by means of a differential capacitor arrangement in which one capacitor plate in the arrangement is moveable responsive to an acceleration.

Abstract: Two geophones located above an underground pipeline are spaced from each other and adjacent to both sides of a benchmark location. As a pig travels through the pipeline sound waves are generated. As a pig approaches a benchmark location, sound waves are received first by the geophone which is closest to the source of the sound waves, that is, the upstream geophone and then by the downstream geophone. The geophones generate electrical signals that are fed to a comparator circuit which is connected to upstream and downstream indicators, one of which is activated when a pig passes the benchmark depending on whether the sound was first received by the upstream or downstream geophone. An alternate embodiment adds a magnetometer at the benchmark location capable of sensing changes in the ambient magnetic field caused by the passage of a pig.

Abstract: A detection method and system utilizing silicon models of the traveling wave structure of the human cochlea to spatially and temporally locate a specific sound source in the presence of high noise pandemonium. The detection system combines two-dimensional stereausis representations, which are output by at least three VLSI binaural hearing chips, to generate a three-dimensional stereausis representation including both binaural and spectral information which is then used to locate the sound source.

Abstract: An ultrasonic detecting apparatus which includes a sequence generating means and a transmission signal generating means for generating a transmission signal corresponding to the sequence. The detecting apparatus also includes a transmitting means to transmit waves, which may be ultrasonic waves, to an object and a receiving means for receiving an echo corresponding to the transmission signal. A correlation operation means performs a correlation operation with respect to the echo. In another general aspect, the sequence generating means may generate more than one sequence, some of whose auto-correlation functions produce substantially zero sidelobe in the summed result. In a further general aspect, the sequence generating means generates two or more sequences, with each of the sequences being different from the others and having substantially the same auto-correlation function as the others.

Abstract: A resonant strain gauge includes a silicon substrate, a polysilicon flexure beam fixed at both ends relative to the substrate, and a polysilicon rigid cover cooperating with the substrate to enclose the flexure beam within a sealed vacuum chamber. An upper bias electrode is formed on the cover, and a lower bias electrode is formed at the bottom of a trough in the substrate directly beneath the flexure beam. A drive electrode and a piezoresistive element are supported by the beam, formed over a silicon nitride thin film layer deposited onto the top surface of the flexure beam. A second silicon nitride layer covers the drive electrode and piezoresistor, cooperating with the first silicon nitride layer to dielectrically encapsulate the drive electrode and piezoresistor. The silicon nitride further extends outwardly of the beam to a location between the polysilicon layer that contains the beam, and the cover, to isolate the cover from the flexure beam.

Abstract: An apparatus and method for inducing and measuring crack growth in a solid by using a double cantilever beam assembly which includes a fracture specimen with a notch that defines a pair of spaced outwardly extending beams terminating at an end where growth of a crack occurs, and a spring assembly for continuously urging the spaced beams apart with a substantially constant pressure that creates a spreading pressure at the end where crack growth occurs to stress the fracture specimen at the end. An electromagnet assembly is used to cyclically apply and remove the spreading pressure caused by the spring assembly.

Abstract: The object of the invention is a procedure for vulcanization which includes a determination of the vulcanization coefficient of an elastomeric workpiece, and an apparatus for the application of the procedure. Prior art is the measurement of the rapture strength or the penetration depth of a needle and the calculation of the vulcanization coefficient from the measured value. The disadvantage is its restriction to the application for time-consuming measurements of samples taken at not too short intervals. Series testing is excluded. The task consists in defining a procedure which leaves the workpiece undestroyed and where the measuring time is so short that it can be applied in series; and in the development of the appropriate apparatus.

Abstract: A magnetic flowmeter provides a first alternating electrical signal with at least a portion thereof comprising a first electromotive force generated by an electromagnetic interaction between an alternating magnetic field and the velocity of an electrically conductive fluid moving transversely across the alternating magnetic field, wherein the first electromotive force varies as a function of the velocity of the electrically conductive fluid, and a second alternating electrical signal with at least a portion thereof comprising a second electromotive force generated by an electromagnetic induction from the alternating magnetic field and other ambient electromagnetic field, wherein the second electromotive force is independent of the velocity of the electrically conductive fluid, and determines the velocity of the electrically conductive fluid as a function of a phase angle difference between the first and second alternating electrical signals.

Abstract: An electromagnetic flow meter for measuring the flow of conductive fluids, e.g. blood, in an extracorporeal circuit. The electromagnetic flow meter utilizes two electromagnets positioned in a portion of the housing of a transducer unit, and a disposable insert easily insertable into a cavity of the housing. The electromagnets generate, at any one time, magnetic fields having opposite directions. The conductive fluid flows in a direction perpendicular to the direction of the magnetic fields for inducing first and second voltages. First and second electrodes extend into the bore of the disposable insert and provide the voltages, generated by the fluid flow cutting through the magnetic fields, to first and second pick-up sockets in said housing.

Abstract: A vibrating beam force transducer is comprised of an oscillating sensing element having an output frequency indicative of the force applied to the sensing element. The sensing element has a variable electrical resistance which can vary in accordance with temperature fluctuations over the operating range of the transducer.A drive circuit utilizes an AC drive signal source that is electrically coupled to the sensing element to drive the sensing element at its resonant frequency which is a function of the force applied to the sensing element. The drive circuit has a DC compensation circuit that alters the electrical characteristics of the drive circuit in response to variations in the electrical resistance of the sensing element.

Abstract: New apparatus for measuring parameters such as pH, pCO.sub.2, pO.sub.2, and Hb content of physiological fluids, especially blood, is described. The apparatus comprises novel means for suspending reagent vessels (34, 35, 40, 45, 50) having shoulders (51, 52) and containing calibrating solutions, rinsing solutions etc., as well as for suspending a liquid waste vessel (26) by suspending the vessels between rods (53, 54) fed to the analyser. The reagent vessels are provided with caps (55, 58) at the top and include liquid reagent conduit extending from the outlet aperture of the cap down into the liquid. When the vessel is mounted on the analyser a fixed inlet tube extending horizontally outwardly from the analyser penetrates a seal across the outlet aperture and connects with the liquid reagent conduit.

Abstract: A fluid-coupled latch for a soil sampling system (including a sample barrel and a drive casing) includes an inflatable gland affixed to the sample barrel. When inflated, the latch engages the inner wall of the drive casing so that the sample barrel is held in a fixed position relative to the drive casing. The latch thus in effect rigidly couples the sample barrel to the drive casing so that the drive casing and sample barrel can be driven simultaneously into the soil while maintaining their initial relative positions. The pressure in the gland is regulated during sampling procedures. After the casing, barrel, and liners are advanced a selected depth into the soil, the latch is released by deflating the inflatable gland and the barrel and liners are removed using wire rope from a winch. The drive casing remains in the soil. An extension is attached to the drive casing.

Abstract: The present invention provides an XYZ type laboratory robot to be used with various peripherals suitable for analyzing and/or preparing samples of liquid. The robot has a work surface (1) including a moving system (2) for supporting elements (7) required for analyzing and/or preparing the samples of liquid. The work surface is associated with an appropriate sample-taking device such as a needle (5) connected to an automatic syringe and displaced vertically on appropriate sampling arms (3, 4) so that the needle (5) can be displaced along three orthogonal axes X, Y and Z. The needle (5) can be inserted into an appropriate stopper member (8) temporarily secured to the elements (7) such that a bottom portion of the needle (5) actively cooperates with the stopper member (8) resulting in the stopper member (8) exerting frictional forces on the outside of the bottom portion of the needle (5) to temporarily connect one of the elements (7) to the needle (5).

Abstract: A gear change for an industrial vehicle, provided with an integrated control unit housed in a seat of the gear box and comprising a plurality of actuators for controlling the selection and coupling of the gears, a plurality of electrovalves for the actuation of the actuators and a sensor of the angular speed of an input shaft of the gear change.

Abstract: An automatic transmission for motor vehicles, comprising an input shaft (2) driven by a torque converter (3). The input shaft drives via two countershafts (6, 7), an output shaft or a crown gear (42) and a differential. The countershafts each have an individual releasable gear (13, 14) in engagement with a common driving gear (12) on the input shaft, as well as individual releasable gears (8, 9) in engagement with individual drive gears (4, 5) on the input shaft. The arrangement makes up a drive module which can be used in a four-speed transmission for front-wheel drive or in a five-speed transmission for rear-wheel drive.

Abstract: A selector lever arrangement for an automatic transmission, comprising a lever (10) in a housing (2) pivotable about a horizontal transverse axle (9), wherein the housing (2) is dome-shaped with side walls (4 to 6) and is covered by a member (14) and a cover (20) with a gate, and wherein lever (10) has a hand grip (11) with a control knob (12), a catch device (19) operated by the control knob (12) by which the lever (10) is pivotably mounted on axle (9), the mounting member (13) being connected to a Bowden cable linkage (27) which transmits movements to the shift input element of the automatic gearbox.

Abstract: A portable rod-like device for depressing a vehicle pedal, such as an accelerator or a brake pedal to a predetermined setting and maintaining that setting in the form of a screw-threaded rod and a mating screw-threaded nut having a hook. The nut rides up the screw-threaded rod and engages the steering wheel of the vehicle while the other end of the rod engages the pedal. The rod depresses the accelerator pedal against spring pressure while the engine is operating and the accelerator pedal is depressed to a point whereby a predetermined setting has been reached on the tachometer of the vehicle, and maintained at that setting. The device can be finely adjusted in small increments. The foot at the free end of the rod frictionally engages the accelerator pedal and can be mounted in either a fixed position or can be swivel mounted.

Abstract: A cycling shoe and pedal are provided with interlocking members to allow quick release; the pedal has one face provided with a stop and fastener while the cycling shoe has a sole provided with a wedge housed in a recess in the sole; the stop and fastening member includes a front stop and a retaining member located in front of the axis of the pedal and a rear fastening member located behind the axis of the pedal and which is capable of displacement in a direction substantially perpendicular to the axis of the pedal against the action of an elastic member; the pedal has a front projection inclined towards the front with a lower edge which is situated, relative to the center plane of the pedal, on the side opposite the front stop member and the rear fastening member; the sole has a longitudinal guide capable of cooperating with the projection and with matting longitudinal guides provided on the pedal to ensure that the front part of the sole and the wedge slide relative to the pedal during the time the wedge app

Abstract: A ratchet wrench mechanism is set forth. It is constructed so that it advances on rotation in one direction and locks when attempting to rotate the ratchet in the opposite direction. It does not require incremental advances as occur with a toothed locking mechanism in the ratchet. Rather, the handle supports a socket which has a surrounding shoulder with upper and lower faces. The socket and shoulder have a gap to permit socket insertion over a bolt. The shoulder passes through wedge shaped chambers or cavities in the housing, and wedges loaded by a bias spring are forced towards the narrow end of the tapered chambers. Rotation in one direction is permitted because the wedges are retracted to the large end of the cavity, but rotation in the opposite direction is forbidden when the wedges move to the opposite and narrow end of the cavity.

Abstract: A process and device for machining a workpiece supported within a workpiece holder and having a tool which has a machining zone for machining the workpiece and supported within a tool holder. The workpiece and the tool are moved relative to one another in a machining movement for removing workpiece material to form a curved surface on the workpiece, and only a portion of the machining zone of the tool acts upon the workpiece in substantially all machining positions and forms an instantaneous machining zone. The tangent of the machining zone of the tool and the tangent of the surface of the workpiece are each oriented substantially at a right angle with respect to the direction of removal of material from the workpiece and substantially coincide within the instantaneous machining zone.

Abstract: The present invention entails a tool holder adapted to be inserted within the tool slot of a lathe turret. The tool holder includes a detachable cutting unit and a clamping unit. Forming a part of the clamping unit is a pair of wedge blocks disposed within wedge cavities formed within the clamping unit. The wedge blocks are movable via screws from an inner relaxed or disengaged position to an outer position where the wedge blocks engage the tool slot and through a wedging action function to secure the tool holder within the tool slot of the lathe turret.

Abstract: A pair of rotary die cylinders with lands having coacting cutting edges which cut blanks from a web of material passing through the nip of the rotating dies. In cross section each land has an outer face and a pair of spaced apart side faces which are parallel to each other and perpendicular to the chord of the outer face to provide a clean cut and facilitate release of the cut blank from the cutting blades as it emerges from the nip of the dies. The die cylinders are journalled for rotation by recesses with frusto conical locating surfaces in their opposed ends. Each die cylinder is made by machining the recesses in the opposed ends of a generally cylindrical workpiece of tool steel and then utilizing the recesses to locate and orient the workpiece relative to a cutting tool to produce a cylindrical surface on the workpiece concentric with the axis of the recesses and then to machine away portions of the periphery of the cylindrical surface to form the cutting blade lands thereon.

Abstract: A stamping and forming machine positively prevents slug pulling by stripping the slug off of the end of the punch as the punch is being withdrawn from the die opening after a blanking operation. This is accomplished by providing a die insert support in supporting contact with the die insert having an opening that is identical to the opening in the die insert, but that is rotationally or laterally displaced therefrom by a small amount. As the punch pushes a slug through the opening in the die insert, the slug encounters the displaced opening in the die insert support and is shifted slightly as it is forced into that opening by the punch. As the punch is withdrawn from the die insert opening, the shifted slug cannot return through the opening and is stripped off of the end of the punch.

Abstract: An apparatus for laterally positioning flat cable in a machine for performing an operation on the cable comprises a base and a pair of cable guides which are movable with respect to the base. Each of the cable guides has a cable guide surface configured complementary to a respective cable side edge. The cable guide surfaces are in opposing relationship. A linkage is connected for moving the cable guide surfaces convergently and divergently through respective proportional distances on opposite sides of a target plane of convergence between the cable guide surfaces. When the cable guide surfaces are spaced apart at a distance equal to or greater than the cable width and the cable is introduced between the cable guide surfaces, operation of the linkage so as to move the cable guide surfaces convergently causes the cable to become confined between the cable guide surfaces with the cable longitudinal axis aligned parallel to the target plane.