Abstract: A device to feed bars located upstream of a machine to shear bars to size from a bundle to be sheared, the single bars being withdrawn from a selected bundle of bars, a bundle of aligned and butted bars for shearing being delivered to such shearing machine by at least one support frame holding a bundle of bars to be sheared. A movable carrier advances the support frame. An assemblage to align and abut the bundle of bars prepares the bars for shearing. The assemblage to align and abut the bundle of bars including a movable gripper into which the bundle of bars are introduced and a movable abutment plate for contacting and aligning the bundle of bars.

Abstract: Container (1,12) intended to contain at least one liquid gas in both liquid and gaseous phase, comprised at least of a body (2), an absorbing material plug (9) inserted in said body and having at least one bore (9a) extending along one dimension (for instance the height) of the container, and a gaseous phase bleeding area being provided adjacent to the bore. A feeding tube (6) is fitted inside the bore (9a), has a free end located inside said bore and free of any contact with the plug (9), and communicates by its other end, tightly with respect to the inside of the container with a bleeding device (5) working only in gaseous phase and located in said bleeding area.

Abstract: According to the invention, a cryogenic liquid as liquid oxygen is vaporized in a heat exchanger by air, which air is thus cooled and further used to blow bottles or the like manufactured at the end of the line where glass is melted and refined by burners using the gaseous oxygen.

Abstract: A process and an installation for protecting a solid metal against oxidation during a rolling operation. This installation comprises inert atmosphere enclosures supplied with an inert gas and enclosing the waiting table, in the case where the rolling is carried out by means of a strip train, or located on each side of pressure rolls around blanks to be rolled, when the rolling is carried out by means of a planetary rolling mill.

Abstract: The present invention relates generally to a process and apparatus for recovering the oil component from a flow of dust-including dry-distilled gases produced in a furnace for thermal-decomposing solid polymer wastes, and more particularly to a process and apparatus for continuously recovering the oil component from a flow of dry-distilled gases comprising combustive gases, an oil component, moisture, and dust which are produced in a furnace for thermal-decomposing or dry-distilling polymer wastes such as waste rubber tires, waste plastics, etc.

Abstract: A tubular case closed at its two ends respectively by a first side wall carrying two electric supply terminals and a second side wall carrying a hot gas outlet nozzle for discharging a jet of heated oxygen. A heating tube extends axially through the case constituting a heating resistance, the wall or this heating tube being provided in one of its end portions with at least one opening for the passage of the gas to the interior of the heating tube and the outlet nozzle. The case also includes a heat exchanger of thermoconductive material and gas pre-heating means.

Abstract: A multi-functional radio/wire stethoscopic apparatus includes: a housing unit having a plurality of control switches and sockets provided therein for hand operation; a radio wave transmitting device and a wire transmission line disposed in the housing unit for signal transmitting operations; an audio-wave guiding device positioned on top of the housing unit for receiving sound waves; a plurality of microphones disposed in the audio-wave guiding device and electrically connected to the radio wave transmitting device and the wire transmission line; an upper casing detachably connected to the housing unit; and a chest piece with sound detecting arrangement functionally connected to an upper end of the upper casing; thereby, during auscultation and bed-side teaching, sound waves from a patient's body will be converted into electrical signals and transmitted for facilitating correct diagnosis through a radio/recorder set and an interface of audio wave control device electrically connected to the housing unit.

Abstract: A method for shielding a stream of liquid steel in an ingot mold as well as an installation to use this method. The shielding is done by means of a truncated cone placed around the pouring hole and converging towards the stream of metal, an injection nozzle opening out tangentially near the wide base of the truncated cone and projecting carbon dioxide snow and/or gas obtained by discharging liquid carbon dioxide around the pouring stream.

Abstract: A device for mounting and demounting a beaded pneumatic tire onto and off of a wheel which is particularly adapted for facilitating fitment of a well obstructor onto the well of the wheel. The device has a wheel support assembly which includes an upwardly extending spindle for supporting the wheel. The spindle has axially disposed internal female threads and has an exterior dimensioned so that the spindle can be freely inserted into the axial hole in the wheel. A removable bead pusher assembly is included which has a thrust collar, pusher arms, and a circumferential bead pusher ring connected to the ends of each of the pusher arms. A removable thrust assembly is provided which has a rotatable male threaded member which threadably mates into the female threads of the spindle and has a thrust face adapted to bear against the thrust collar.

Abstract: A retroreflectivity measuring system measures performance data relating to a reflective surface, such as a highway stripe or marking containing reflective glass beads. A laser beam illuminates a portion of the reflective surface with radiation of a predetermined wavelength, the laser being incident on the surface at an incidence angle i. The incident laser beam is then reflected back, at least partially, at a particular observation angle o that is separated from the incidence angle by a divergence angle .delta.. A telephotomultiplier aimed at the illuminated area receives the reflected laser beam at the observation angle o. A preferred telephotomultiplier includes a telescope, a narrow pass optical filter for passing basically only the wavelength of the laser beam, and a sensitive photoelectric device, such as a multiplier phototube. The laser and the telephotomultiplier may be mounted on a servo-motor driven frame in order to scan the target area from a moving vehicle.

Abstract: An electric motor has an annular permanent magnetic rotor having rotor poles of alternating polarity around its circumference. The motor has an outer stator disposed concentrically around the outer periphery of the rotor which has an annular configuration and a plurality of axially extending salient magnetic poles of opposite polarity alternating around the outer stator's inner periphery. The motor also has an inner stator disposed concentrically within the inner periphery of the rotor which has an annular configuration and a plurality of axially extending salient magnetic poles of opposite polarity alternating around the inner stator's periphery. A separately energizable annular coil of wire disposed inside each stator energizes that stator's magnetic poles in response to sequential energization of each coil with electricity in different phase relationship with each other.

Abstract: A partition system with modular panel units having a retractable tongue mounted in one end and a groove, which cooperates with the tongue of an adjoining panel, mounted in the opposite end. An individual panel unit is released from interlocking relationship with adjoining units by retraction of the tongue so as to enable the unit to be removed without having to disassemble adjacent portions of the partition. Removed panel units can easily be replaced with functional alternatives such as hinged doorways or windows.

Abstract: The powdered material contains oxygen in the oxide and/or adsorbed form and the oxygen present is reduced in a first pre-sintering stage and the cohesion of the material is ensured in a second sintering stage. The pre-sintering stage is carried out under a reducing atmosphere based on hydrogen and neutral gas whose flow rate F.sub.G is higher than or equal to: ##EQU1## in which relation: S.sub.P =section of the layer of powder to be sintered in sq.mD.sub.P =voluminal mass of the powder in kg/cu mX(O.sub.2)i=percentage of oxygen mass in the powder before the pre-sintering stage, in the oxide and/or adsorbed form,P(H.sub.2)i=voluminal percentage of hydrogen in the gas introduced into the furnace,P(H.sub.2)f=the smallest voluminal percentage of hydrogen in the atmosphere in the furnace at a point where the oxides have been completely reduced,v.sub.S =speed of feed of the material in the furnace expressed in m/hr,.alpha. is a constantF.sub.G being expressed in cu.m/hr.

Abstract: A nickel particle plating system in which a multiplicity of minute nickel particles are provided with gold and silver coatings and are deposited in a nonconductive matrix to form an electro-conductive body in which the particles may be placed along conductive paths. The coatings are applied to the particles in a unique manner which enables the realization of a gold coating having a maximum thickness of about 5 percent of the maximum particle dimension and a silver coating having a maximum thickness of about 10 percent of the maximum particle dimension.

Abstract: Device for improving the heating of a channel (2) for distribution of glass (1), said device including a cylindrical duct (6) connected at its upstream end to means (7) for feeding a premixture of air and fuel gas and whose downstream end (8) opens inside a cylindrical bore (9) in a refractory block (10) inserted in a wall (11) of the channel, said cylindrical bore (9) extending by means of a coaxial cylindrical duct (12), of smaller diameter than that of said bore, the cylindrical channel (6) being surrounded by a sealing ring (13) which covers the face of the cylindrical bore (9) in which said channel (6) is inserted.

Abstract: A heat process for producing corrosion resistant steel articles, comprising a first step during which the articles placed in a furnace are nitrided in a gaseous atmosphere to produce on their surface a first layer consisting essentially of epsilon type iron nitride, followed by a second stage during which the articles are exposed to an oxidizing atmosphere to form a second, oxide-rich layer on the surface of the articles. According to the invention, during the first step, an atmosphere comprising 20 to 70% by volume of ammonia NH.sub.3, 1 to 5% by volume of nitrous oxide N.sub.2 O and 25 to 79% by volume of nitrogen N.sub.2 is introduced into the furnace, the concentration ratio of ammonia to nitrous oxide [NH.sub.3 ]/[N.sub.2 O] in the introduced atmosphere being greater than 5 so that the furnace atmosphere is not oxidizing, and during the second step, an atmosphere comprising 0 to 25% by volume NH.sub.3, 0 to 5% by volume N.sub.2 O and 70 to 100% by volume N.sub.

Abstract: The present invention comprises methods and apparatus for controlling the speed of a motor for a piece of ice slab refrigeration equipment, in response to variations in thermal load on the ice slab. The control apparatus comprises thermal load sensing means and motor drive means. The thermal load sensing means detects variations in the thermal load on the ice slab and generates an output signal correlatable with such variations. The motor drive means is operatively coupled to the thermal load sensing means and is connectable to the motor and drives the motor at various speeds correlatable with the variations in ice slab thermal load. The control apparatus of the present invention is particularly adapted to control the speed of an alternating current induction motor of a centrifugal brine pump motor.

Abstract: A band-type well obstructor for obstructing the well of the hub of a wheel rim, particularly for a pneumatic tire. The well obstructor has an inextensible band with integral circular protrusions mechanically extruded onto the band. The circular protrusions extend radially inwardly to abut against the base of the well to retain the band in position surrounding the well, and to resist crushing under the weight of the vehicle in the event of deflation of the tire. The well obstructor has a fastener assembly utilizing a screw with a groove adapted to receive a locking ring. The fastener assembly further has two transverse beams, one of which is adapted to fit over the end of the screw and abut against a locking washer placed between the transverse beam and the head of the screw. The locking ring is then snapped into place to hold this transverse beam in position. The second transverse beam is placed over the threaded end of the screw.

Abstract: A fluorescence spectrophotometer in which the optical system for the excitation monochromator includes an arrangement for forming an image of the exit slit of the monochromator adjacent a first surface of the sample being evaluated and for forming an aperture image adjacent a second surface of the sample. Fluorescence from the sample is directed to an emission monochromator which likewise has an arrangement for forming an image of the emission monochromator's entrance slit adjacent a third surface of the sample and for forming an aperture image adjacent a fourth surface. The optical components are arranged such that the images of the slits lie in a single plane defined by the axial rays of the excitation and fluorescence beams, and in several advantageous arrangements the slit images are oriented at 90.degree. from the slits themselves. The intensity of the output signal may be further increased by locating mirrors behind the sample holder to direct the light back through the sample for a second pass.