Abstract: An annular groove (35) is located in an outer surface of an inner toroid (31), and is partly covered by an inner surface of an outer toroid (32). Alternatively, an annular groove (25) is located in an inner surface of an outer toroid (22), and is partly covered by an outer surface of an inner toroid (21). As the toroids are rotated together about different, intersecting axes, an elongated workpiece (W) is introduced into an open portion of the annular groove, advances into the closed portion of the annular groove, and is extruded through a die (48) upon again approaching the open portion of the annular groove, thereby forming an elongated product (P).

Abstract: A rapidly rotatable piercing tool for forming, substantially by frictional heat and pressure, a bossed hole in a metal plate or tube wall, said tool comprising a head of greater diameter, whereby a shoulder facing the leading end of the tool is formed for so shaping one of the end faces of the boss surrounding the hole, as to round off, to bevel off or to deepen said end face towards the hole in an annular region bordering the hole.

Abstract: Workpieces for cross wedge rolling are fed first to an auxiliary trough provided with a sliding gate for removal of workpieces in case of an interruption of the operation of the rolling stand; the workpieces are fed from the auxiliary trough into a stand-by trough to be fed between the rolls of the rolling stand.

Abstract: A process for bending large pipes comprises the steps of progressively and inductively heating the wall of a pipe within the region to be bent. The penetration depth of the heat energy is varied over the circumference of the pipe through shielding. The inner radius of the pipe to be heated may initially be heated before the entire wall is differentially heated. Apparatus for carrying out the process is also disclosed.

Abstract: A machine for the manufacture of an axially prestressed coil out of a strip of material for covering various types of machine components, such as spindles, shafts and columns. The coil is to have an elongated and spiral-like form. The machine which is capable of manufacturing this product includes a feed roller pair for feeding the strip by the use of an associated feed drive mechanism. The feed rollers are movable against one another through a clamping device. A bending roller is arranged at the exit from the feed rollers. A support structure is provided for the bending roller to facilitate a movement thereof to effect not only a cylindrical bending of the strip material but also, and upon a swivelling of the bending roller, a cylindrical as well as an increasing diameter spiral can be formed.

Abstract: A roller frame assembly for a material straightening machine is provided with upper and lower roller frames which are pivotable with respect to one another. Each roller frame has a drive transmission separate from that of the other frame for rotating its associated straightening rollers.

Abstract: A tool for sheet metal or the like and for partially cutting blanks from a margin of a workpiece, such as a sheet metal pipe end, and simultaneously and accurately bending the partially cut blank at a substantially right angle to its original position in the plane of the workpiece without distorting the adjacent metal and with one motion of the handles of the tool.

Abstract: A process and associated apparatus are provided for producing cold flow formed items from slugs. First and second dies are aligned for relative movement axially towards and away from one another. The dies have respective opposed first and second faces and the first face defines a cavity having portions including generally axial walls. The first die has a peripheral chamfer extending axially away from the first face and a sleeve is provided containing the dies to combine with outer parts of the second face and the peripheral chamfer to define an annular space. The slug is formed into the item by causing relative movement between the dies to impact the slug and then causing further relative movement so that the slug is caused to flow into contact with the axial walls and also into the annular space so that destructive forces applied to the axial walls are countered by forces applied to the chamfer thereby stabilizing the material of the first die between the axial walls and the chamfer.

Abstract: Material to be manually fed into a machine's point of operation is supported by a surface plate. A pusher, interrelated with the surface plate by keying means, is held by the machine operator such that the operator uses the pusher to push the material into the machine point of operation without having the operator's hands coming in dangerous proximity with the machine point of operation or with the machine's structure.

Abstract: An apparatus and technique for changing the characteristics of a fluid mem in order to test static response of sensors within that medium. In particular, in testing the static response of a humidity sensor, a first sealed enclosure surrounds a humidity sensor and is retained within a second sealed enclosure. Both enclosures may be purged to have a predetermined relative humidity, one different from the other. The seal of the first chamber is then broken in such a manner that the fluid of the second enclosure subjects the sensor to a different relative humidity.

Abstract: An apparatus for determining the alcoholic content in blood. A sensor receives exhaled air from a person being tested and produces a signal which is sent to at least two comparator devices for comparing the output signal with at least two preset reference values. A logic circuitry of TTL elements is connected to the output of the comparator device and is arranged in conjunction with three light emitting diodes to actuate at least one light emitting diode based upon the result of the comparison to thereby indicate the alcoholic content. A first light emitting diode is actuated when the output is below the first reference value, the first light is extinguished and the second light is ignited when the output is between the first and second reference values, and the third light is ignited and the second is extinguished when the output exceeds the second reference value.

Abstract: The device includes an oscillation body and an electronic circuitry component connected to an oscillation detector and to plural oscillation generators, and including a period of frequency meter, phase shifters supplying the generators with an excitation signal shifted in phase relative to the detector signal, and a modulator. The phase angle between the detector and excitation signals, and the oscillating frequency, are varied substantially periodically within a given interval at a frequency which is lower than the oscillation frequency. Control elements control the phase and frequency position of the interval as a function of the variation of the ratio of the detector signal to the excitation signal, and of the relation between the variations, within the interval, of the detector and excitation signals and the phase angle therebetween.

Abstract: The permeability of portions of or entire wrappers of successive filter cigarettes is tested with a gaseous fluid independently of the permeability of perforated portions of wrappers around the filter mouthpieces. Signals denoting the permeability of major portions of or entire wrappers are compared with a reference signal denoting the maximum permissible permeability, and the cigarettes having wrappers of excessive permeability are segregated from satisfactory cigarettes. Signals denoting the permeability of perforated wrapper portions are made visible to attendants or cause the generation or audible signals, for example, to facilitate proper adjustment of perforating instrumentalities if the permeability of perforated wrapper portions is too low.

Abstract: An apparatus for sensing air-pressure drop in an automobile tire which comprises an air chamber having an internal air pressure maintained substantially equal to that of a tire under normal conditions and a sensor displaceable in accordance with differences in pressure between the air chamber and the tire. The apparatus is mounted in the inner end of the air valve of the tire, and when the air pressure in the tire drops to a certain level below an initial air pressure setting, the sensor is displaced. Sensor displacement is detected and an appropriate signal is provided to the driver.

Abstract: A means is disclosed for producing whiskers with a laboratory apparatus that simulates an electrostatically assisted gravure press. The apparatus does not employ the dynamic printing conditions normally found on a printing press, but utilizes static conditions to reproduceably generate whiskers as a means for assessing the whiskering tendency of the ink or paper involved.

Abstract: An anemometer includes a rotor assembly having front and rear bearings rotatably secured to axially spaced apart front and rear portions of a fixed rotor support shaft. Radially projecting rotor blades rotate with the bearings about the axis of the shaft in response to fluid flow directed against the blades substantially parallel to the axis of the shaft. The front bearing includes a first tapered bearing surface which tapers wider toward the rear of the shaft and bears directly against a corresponding second tapered bearing surface on the shaft. The second tapered bearing surface provides thrust and radial support upstream of the center of gravity (c.g.) and aerodynamic center of the rotor assembly for loads imposed on the rotor assembly by fluid flowing axially from front to rear along the axis of the shaft. This tends to minimize transverse motion of the rotor from bearing wear during use, resulting in accurate readings over an extended period of use of the instrument.

Abstract: An application monitoring device to determine and display the volume of liquid or granular material applied per unit area of ground by mobile application equipment is described. The device includes a first measuring means which generates an area electrical pulse signal having a frequency proportional to the rate at which the application equipment covers or traverses a unit of area, and a second measuring means which generates a volume electrical pulse signal having a frequency proportional to the rate of application of the material. A frequency multiplying means operates on the electrical a pulse signal of the first measuring means, and a pulse counting device connected to the output of the frequency multiplying means and the second measuring means accumulates the electrical pulses from the second measuring means for a period of time determined by the frequency multiplying means and corresponding to the time required by said application equipment to cover a unit of area.

Abstract: A spreader application monitoring device to determine and display the volume of liquid or granular material applied per unit area of ground by mobile application equipment is described. The device includes a first measuring means which generates an area electrical pulse signal having a frequency proportional to the rate at which the application equipment covers i.e., traverses a unit of area, and a second measuring means which generates a volume electrical pulse signal having a frequency proportional to the rate of application of the material. A frequency multiplying means operates on the electrical pulses of the second measuring means, a pulse counting means being connected to the output of the frequency multiplying means and the first measuring means for accumulating the electrical pulses from the frequency multiplying means for a period of time determined by the first measuring means and corresponding to the time required by said application equipment to cover a unit of area.

Abstract: A meter mounting mechanism which is hydraulically operated is disclosed. It is particularly adapted to insert and position a meter transducer in a high pressure environment. The illustrated embodiment discloses a flange-mounted mechanism for positioning a sensor in a pipeline against extremely high pressures. The apparatus utilizes a flange-mounted, correctly oriented, bottom plate which secures an elongate cylinder. The cylinder encloses a piston on a piston rod. The piston rod extends above and below the cylinder. The piston rod is hollow to permit transducer connections can extend through it. The piston rod carries a transducer at the lower end. The transducer is able to be retracted on the rod into a shield to protect it.

Abstract: A method and an apparatus for supplying samples to a flowing continuous carrier solution for automatic analysis whereby a measured sampling conduit with a predetermined length and volume is alternately coupled to an intake conduit for the sample and the path of the flowing carrier solution. The sample circuit includes a sample container, an intake tube, the sample conduit valves and a pump, and the carrier flow circuit includes an inlet tube, a pump, a conduit, valves, a shunt conduit, an outlet conduit and an outlet, and by means of the valves, the sampling conduit is connected into and out of the carrier flow circuit parallel to the shunt conduit.

Abstract: The invention relates to machines which determine the unbalance in a workpiece by rotating the workpiece and measuring the unbalance forces reacted into the machine frame. A drive arrangement is disclosed for rotating a spindle supporting the workpiece in such a machine for balancing vehicle wheels. The arrangement comprises a spindle housing for rotatably supporting the spindle and mounted on a base frame in a manner whereby the forces are reacted into a single direction and measured. The invention resides in the drive arrangement which includes speed changing means in the form of a worm gear on the spindle and a worm drive mounted on the spindle housing. A drive motor for driving the worm is mounted on the machine frame, that is, away from the spindle housing and drives the worm by means of a belt drive between a motor pulley and a pulley connected to the worm.

Abstract: An ultrasonic applicator is illustrated for ultrasonic scanning of internal body regions, particularly for obtaining ultrasonic echo sectional views thereof for medical diagnostic purposes, wherein an ultrasonic transducer system directs sequential pulses of ultrasonic energy along successive beam paths converging toward a virtual focal point, and a planar reflector is interposed to reflect the energy pulses and is inclined at an angle deviating from 90.degree. relative to each incident beam path for the purpose of producing an actual convergence of the reflected beam paths externally of the applicator. The depth of the actual convergence point within the body to be scanned may be varied by means of a longitudinally adjustable acoustic window. The actual convergence point may also be shifted by angular adjustment of the reflector.

Abstract: A variable capacitance dual pressure sensor for sensing the pressure levels of a pair of fluids independently comprises an enclosure having a top wall and a bottom wall, and a substrate of dielectric material having a first major surface facing the top wall and a second major surface facing the bottom wall. A first electrode is affixed to a portion of the first major surface and a second electrode is affixed to a portion of the second major surface. A first flexible electrically conductive diaphragm is sealed to the first major surface of the substrate and is spaced from the first electrode to form therewith the plates of a first capacitor and a second flexible electrically conductive diaphragm is sealed to the second major surface of the substrate and is spaced from the second electrode to form therewith the plates of a second capacitor. The first and second diaphragms are electrically coupled together to form a common connection.

Abstract: A cylindrical linear actuator suitable for installation in a confined area and capable of infinite stroke adjustment over its scheduled travel and lockable at any position of its designated stroke includes overlapping and combining rod end stroke adjustments to minimize actuator length. Electrical feedback is precalibrated to give a known signal proportional to the actuator stroke and to the position of the load clevis thereby always giving the correct position of the load.

Abstract: A stand for supporting and rotating shafts in fractions of a revolution, for example for assembling armature slot conductors. Conventional arrangements use multiple rollers conforming to the shaft, one of which is motorized by way of gearing. This tends to be cumbersome, expensive and complex. According to this invention a shaft is supported on the walls of a channel between roller stops. A lever within the channel is jacked up to tilt the shaft against one roller and the lever is pushed longitudinally, allowing the shaft to remain in position but rolled around against the stop by an amount corresponding to the linear lever movement. The lever is then lowered and retracted.

Abstract: A variable power transmission mechanism including a first disc rotatable about a first axis and having a flat surface perpendicular to the first axis, a second disc rotatable about a second axis and providing a flat surface perpendicular to the second axis, apparatus positioning the first and second discs in spaced apposition so that the flat surfaces define planes intersecting at an acute dihedral angle and including a ratio varying arrangement for causing displacement between the discs in a direction aligned with the vertex of the dihedral angle, a ball which makes contact with the surfaces along circles concentric with the respective axes and is resiliently urged toward the vertex of the dihedral angle, a guide for causing displacement of the ball in a direction aligned with the vertex, and an interconnection between the ratio varying arrangement and the ball guide for causing displacement of the latter simultaneously with and proportional to displacement between the discs.

Abstract: The angular or rotative position of a sprocket wheel may be incrementally adjusted through the appropriate manipulation of a pair of spaced-apart, opposed wedge assemblies mounted on the wheel that capture a crank of the shaft so that by inching the crank in one rotative direction or the other through manipulation of the wedge assemblies, the rotative relationship between the wheel and the shaft is changed. Each wedge assembly includes a pair of relatively shiftable components having interengaging cam surfaces, one of such components having an arcuate surface that is received in slidable, mating engagement by a complementally formed recess on the proximal side of the crank, thereby permitting relative rotational movement between the crank and the wedge assemblies so as to accommodate the swinging or arcuate nature of the crank movement during adjustment.

Abstract: A pulley having a molded glass bead reinforced plastic disk-like body with a central cylindrical aperture extending therethrough and a V-belt groove in its periphery or rim and a cylindrical hub extension projecting from one side, two square recesses in the outer circumference of the hub spaced ninety degrees (90.degree.) apart with a cylindrical aperture extending from the bottom of each of the square recesses to the central cylindrical aperture of the pulley, squre nuts in the square apertures in the hub extension and a circular or ring-like metal band encircling the hub and overlying the nuts with apertures aligned with the threaded openings through the nuts.An adjustable V-belt pulley comprising a first molded glass bead reinforced plastic member having a hub part with a central through aperture and a first annular flange part intermediate the ends of the hub part.

Abstract: An endless power transmission belt having a compression section, a load-carrying section and a tension section comprising a plurality of transverse corrugations molded therein to provide a cool running belt.

Abstract: A V-belt of preferably the variable speed type with a plurality of V-blocks attached to a flat belt type load carrying section, the blocks having an embedded or partially embedded reinforcement which surrounds and supports the load carrying section. The generally flat type load carrying section is preferably of a symmetrical construction with an overcord and undercord sandwiching a tensile member. A plurality of transversely oriented ribs or teeth are located at the radially inner and outer surfaces of the load carrying section, a rib coinciding in position with the surrounding reinforcement member of each polymer block.

Abstract: An endless power transmission belt made primarily of elastomeric material is provided which comprises a plurality of laterally spaced belt elements and a tie band interconnecting the radially outer surfaces of the belt elements wherein the tie band comprises a plurality of cooperating layers, one of these layers being bonded to the radially outer surfaces of the belt elements and comprising a fiber-loaded elastomeric matrix, and another of the cooperating layers comprising a fabric layer. The groove between adjacent belt elements extends into the fiber-loaded matrix layer of the tie band. Also provided is a method for making this belt.

Abstract: A chain drive, especially for the control drive of internal combustion engines with a tensioning member engaging at a non-loaded chain section. In addition to this tensioning member, a further tensioning member is provided which engages at another chain section and whose tensioning movement is derived from the first tensioning member.

Abstract: A ball screw and nut mechanism in which a preloaded train of balls travels through a closed circuit having an active portion and an inactive or return portion. The active portion is formed by convolutions of opposed helical grooves in the screw and the nut and a return tube on the nut defines the inactive portion. Inclined surfaces are formed on the lands between adjacent convolutions of the groove on the screw and partially unload the balls as the latter enter and leave the active portion of the circuit to prevent the balls from keystoning.

Abstract: A motion transmitting remote control assembly including a conduit movably supporting a motion transmitting core element. A fitting is disposed about the conduit adjacent a first end for attachment of the conduit to a support structure. An elongated adjustment member having teeth disposed on opposite sides of its four-sided body is attached to the conduit adjacent the other end and extends through a passageway in a support member adapted for attachment to a support structure.

Abstract: A gas turbine engine has an internal drive shaft including one end connected to a driven load and an opposite end connected to a turbine wheel and wherein the shaft has an in situ adjustable balance system near the critical center of a bearing span for the shaft including two 360.degree. rings piloted on the outer diameter of the shaft at a point accessible through an internal engine panel; each of the rings has a small amount of material removed from its periphery whereby both of the rings are precisely unbalanced an equivalent amount; the rings are locked circumferentially together by radial serrations thereon; numbered tangs on the outside diameter of each ring identify the circumferential location of unbalance once the rings are locked together; an aft ring of the pair of rings has a spline on its inside diameter that mates with a like spline on the shaft to lock the entire assembly together.

Abstract: A combining reduction and accessory gear box receiving power input from a multiple of gas turbine engines includes provisions for providing separate accessory drives for each engine used therewith, and an output drive that is driven by any number or all of the engines. Each gas turbine engine, as well as the gears associated therewith and its connection to the output drive, is totally independent of the other engines.

Abstract: Transmission mechanism located between a driving shaft and a driven shaft and comprising a hydrokinetic coupling device and a device for reversing the rotation direction of the driven shaft.The hydrokinetic device comprises a driving wheel and a driven wheel, whereby the latter can be coupled to the driven shaft by means of a reversing device constituted by a planet gear, comprising planet wheels and bevel gears, located substantially in the center of the hydrokinetic device via hydraulically controlled coupling means and located on either side of the hydrokinetic device, whereby the driving and driven wheels, reversing device and coupling means are all located in a fluid-filled enclosure.An interesting application of the invention is to the automobile industry.

Abstract: Rotary speed changer including a 2-element internal gear set. The eccentric of a crankshaft is journalled in the inner element on its axis. Fixed to a driveshaft is a plate which has cycloid pins mating with cycloid holes in the inner element so that the driveshaft rotates at a fraction of the speed of rotation of the crankshaft. Instead of being attached to the driveshaft, the plate may be fixed to the housing so that the outer element of the gear set rotates at a fraction of the speed of the crankshaft.

Abstract: An indexing mechanism in which a workpiece to be machined by a tool is attachable to the end of a rotatable spindle that is driven by the reversible motor of a servomechanism to assume a desired angular position. Mounted on the spindle and rotatable therewith is one gear of a multiple-tooth face gear coupling pair, the second gear of which is axially advanced by a motor along the spindle into and out of meshing engagement with the first gear. The second gear is non-rotatable and acts, when in mesh with the first gear, to prevent rotation of the spindle and thereby lock the angular position of the workpiece.

Abstract: A portable apparatus useable with a rod file to sharpen the teeth of a chain saw. The apparatus has a base that clamps onto the blade of the saw. A chain holding finger mounted on a support carried by the base fixes the position of the tooth to be sharpened and aligns the rod file with the cutting edge of this tooth. An angled groove in the base serves as a guide and support for a slide attached to the file so that the file sharpens the tooth at a fixed angle and elevation.

Abstract: A finger fit implement comprising a shaped hollow member having an opening at one end to accommodate the entry of a finger and an opposed off centered tapered internal end to be mated against the tip and nail portion of said finger. The opposed end portion having an external fitting means for attachment of various tool elements.

Abstract: The invention relates to methods of machining end faces with rotary tools. The method according to the invention comprises imparting to the workpiece a rotary motion and to the tool--a straight feed motion at an angle 20.degree.-75.degree. to the radius of the workpiece.

Abstract: Turning machine tool includes a workpiece spindle, a cantilevered longitudinal guide adjacent the workpiece spindle and movable parallel to the rotary axis thereof, at least one tool support mounted on the free end of the cantilevered longitudinal guide and being movable in a horizontal plane perpendicularly to the rotary axis of the workpiece spindle within a work space for the turning machine tool, guide means for the cantilevered longitudinal guide, and a round guide system which includes two transverse guides movable perpendicularly to the rotary axis of the workpiece spindle, the cantilevered longitudinal guide being supported outside the work space through the intermediary of the guide means in the round guide system.

Abstract: The subject invention relates to an improved steady rest for use in a portable heavy-duty apparatus for machining large rotary work pieces. The apparatus includes a heavy-duty portable base and a cutting assembly for cutting the large rotary work pieces. The steady rest includes a pedestal releasably secured to the base. A jaw support is mounted on the pedestal. A pair of C-shaped movable jaws is mounted on the jaw support positionable in a selected attitude for receiving the rotary work pieces. A bridge connects the upper ends of the jaws to form a complete circle around a portion of the large rotary work piece. A roller is mounted on each of the jaws for rotatably supporting the rotary work piece. A brake is mounted on the jaws for releasably holding the rotary work piece.

Abstract: Disclosed herein is a device for automatically forming piles out of strips exiting from a machine on which the said strips are produced, comprising at the top, a pair of parallel rods placed downstream with respect to the said cutting device, and supported at their ends by corresponding brackets connected to the base frame, the said rods being provided centrally with a support member for sustaining the packs of strips in a horizontal position and able to rotate, in opposite directions, in order to release the pack of strips which, once freed, falls, suitably guided, on to a collection pallet placed on a driven conveyor, located downstream of the machine, which continues to operate until a number of vertical piles of strips have been formed on the pallet, after which the pallet is sent towards a discharge station.

Abstract: A salmon slicing machine comprising a frame, a stationary sun gear and a rotatable shaft mounted on said frame, a stop plate and circular supporting parts having circular grooves mounted for rotation on said rotatable shaft, circular knives positioned under said circular supporting parts and mounted for horizontally rotating and orbiting around said stationary sun gear, a hydraulic piston to adjust said stop plate relative to said circular knives and a feeding mechanism for the material to be sliced inclined at an acute angle to the plane of rotation of the knives.

Abstract: A relatively light, portable saw mill arrangement provided with a pair of axially mounted saw blades. A specially designed narrow log carriage runs on a track placed beneath the axial plane of the saw blades, and passes entirely between the axially mounted saw blades so that, after the final pass lumber of the order of 4".times.4" is all that remains on the carriage. A hydraulic dogging arrangement holds the log in place on the carriage during the sawing operation.

Abstract: Disclosed is an electronic musical instrument resembling a guitar that is played like a guitar and sounds like a guitar; however, it is stringless and has a plurality of flexible actuator blade type members which are mounted on edge and are adapted to be strummed or picked. Flexing of each actuator blade in either direction closes one or more leaf type switches which controls the amplified output of an electronic oscillator whose fundamental operating frequency is further varied in accordance with finger actuation of a plurality of fret-board switches. Although the invention in its preferred embodiment is directed to a guitar-like instrument, it is also applicable to other types and classes of musical string instruments such as a violin.

Abstract: This disclosure pertains to a digitalized music synthesizer functioning in the real time domain to continuously update, in an asynchronous manner, a continuing approximation of a desired waveform by utilizing its memory of the recent history of the operation of the keyboard of the apparatus. A real time clock and a microcomputer are both driven by a single crystal oscillator, operating at any arbitrary frequency that need not correspond with the frequency of the fundamental or harmonic waves to be produced by the apparatus. A memory of the recent history of keyboard events is maintained. The microcomputer utilizes an algorithm employing square waves as a basis and a differential correcting technique which minimizes the quantity of square wave defining terms that need be computed by only recomputing at each time, corrections to the previous computation.

Abstract: A polyphonic electronic music synthesizer reproduces in real time complex sounds representative of musical instruments and other musical and non-musical sounds from an above-audio frequency signal. The synthesizer includes a sampling circuit for repetitively sampling the high frequency signal to thereby provide a series of samples, successive ones of the samples being produced by sampling the relatively high frequency signal at a rate of approximately once per cycle at instantaneous points in the cycle which are progressively displaced from the previously sampled points. A storage mechanism sequentially stores the samples, and a mechanism is provided for sequentially recombining each of the sample in real time to thereby produce the selected waveform at the desired audio frequency. Preferably, the sampling circuit is implemented digitally.