Abstract: A tiltable metallurgical vessel arrangement, in particular a converter for a steel making plant, has carrying trunnions, a fixed bearing, an expansion bearing, bearing housings for the bearings, and force measuring means resting on a supporting construction with bearing housings resting on the force measuring means. Vertical sliding faces provided on each bearing housing and on the supporting construction at both sides of the carrying trunnion axes form guides and counter-guides that engage each other so as to prevent horizontal motion of the bearing housings in the direction of the axes of the carrying trunnions.

Abstract: An electrical connector for ribbon cable terminals has first and second longitudinally sets of conductor pins embedded in a block of insulating material. Each pin has a first end portion and a second end portion, the axes of which are in spaced parallel relationship, and a bent intermediate portion. On each side of the block a row of first end portions and a parallel spaced row of second end portions are defined. The intermediate portions on the pins of one set respectively cross the intermediate portions of the other set in the block without making contact. The connector is adapted to interconnect the terminals for diagnostic purposes, including Alpha continuity checks, as well as permitting connection of series or cascades of such terminals without the need for modifying cable terminations.

Abstract: The improvement in method and apparatus for basic oxygen steel making employing the off-gas principle for pre-heating purposes. This improvement involves the directing of the off-gas from a first furnace during refining to a second furnace, and burning said off-gas within the second furnace efficiently in order to preheat scrap and/or iron pellets in order to decrease the charge of molten pig iron and increase the solid charge. At the conclusion of the refining portion of the cycle, said first furnace is emptied of its steel and the cold charge is introduced into it while molten pig iron is charged into said second furnace on top of the pre-heated scrap. The cycle is then reversed by refining in said second furnace and directing said off-gas to said first furnace where it is mixed with oxygen or air and burnt within it to provide energy for the pre-heat. The method and apparatus provide for the protection of the lining and gives consideration to maintenance and pollution control.

Abstract: This invention relates to a vacuum rotatable tubular furnace for metallothermal reactions comprising an outer housing adapted to be evacuated and having one end thereof a closable filler cap, and a vacuum-tight passage for a shaft on the other end, rotatable tube means in said outer housing, said tube means being open on an end thereof facing said filler cap, and having a shaft connected to the other end of said tube and extending through said housing, a cylindrical reaction chamber mounted in said rotatable tube means symmetrically to the longitudinal axis of the latter, and being detachably connected thereto, said reaction chamber being narrowed on a filling end thereof to a tube having a small lumen and being closed at the other end thereof, a cylindrical evaporation chamber mounted in the area of the filling end of the reaction chamber and being adapted to contain metal effecting a metallothermal reaction, said evaporation chamber having an opening on an end thereof facing said filler cap, heating means o

Abstract: The blast furnace in the present invention comprises a V-shaped or an inclined hearth, tuyeres disposed along said hearth, a tap hole for discharging matte and/or slag, said tap hole being disposed at the lowest part of the hearth, and dampers having V-shaped or inclined fore end, each of said dampers being disposed to agree with said tuyeres. The present blast furnace, when employed for smelting by feeding briquetted Zn bearing materials as the material thereto and blowing preheated air therein through the tuyeres disposed along the hearth, displays an improved smelting efficiency in separating and recovering volatile valuable metals and non-volatile valuable metals.

Abstract: A lead wire assembly is provided which permits soldering connections and welding connections to be made to the anode and cathode of a solid electrolytic capacitor body while applying force in a single direction to the lead wire assembly during soldering and welding. Automatic processing of a multiplicity of capacitor bodies is facilitated by the present invention.

Abstract: A contrivance for the protection of the walls of a shaft furnace from heat effect comprising a metal plate serving to shield the surface of walls facing the interior of the furnace and at least two essentially U-shaped tubes for a coolant linked up with the plate and attached to the furnace wall with their open ends. The plate is more longer in the vertical direction than wide in the horizontal one and is made up of separate blocks, each block being more wider in the horizontal direction than long in the vertical one and is provided with grooves accommodating the tubes in that surface which faces the furnace wall. The grooves are lined with a layer of heat conductor, and provided in the intervals between the grooves are means of fastening each block to the tubes which, in their turn, are provided with fasteners welded thereto and serving the purpose of attaching to the wall.

Abstract: A tiltable metallurgical vessel arrangement, in particular a steel making plant converter, has carrying trunnions arranged in bearings, one of the bearings being a fixed bearing and one being an expansion bearing, and bearing housings for the bearings; the bearing housings have supporting faces which rest on counter-supporting faces of a base-supported supporting construction; at least one of the bearing housings has two supporting faces arranged at a distance from each other and a strain measuring means connected to the bearing housing between the supporting faces thereof to indicate a sagging of said bearing housing under load.

Abstract: The web in the bag-making machine is continuously advanced from the web letoff to the takeup. At the operations station of the machine where operations take place on the web, the web is momentarily held stationary for operating thereon. A pair of swinging web control arms take up web at the entrance end of the station and let off web at the exit end during the moment at which the web is stationary. Operations take place when the web is stationary. Adjustments control length of time the web is stationary. Sealing and perforating operations are selectable.

Abstract: Two embodiments, a towed embodiment and a self-propelled embodiment, of a compost machine for shredding, mixing and aerating decomposable and non-decomposable waste material deposited in strips on large sites are disclosed. Both embodiments of the compost machine of this invention include a frame-suspension member, a rotary member, a plurality of replaceable teeth carried by the rotary member, a folding protective shield system, a pair of hydraulic motors and a prime mover. In both embodiments the hydraulic motors are mounted inside the rotary member, one at each end and are driven by the prime mover through a shock-protective coupling arrangement.

Abstract: A rod connector module of the type comprising an insulating housing containing a contact rod support, a receiving cone in the housing extending from the exterior toward the support, and a conductive contact rod fixed at one end to the support and extending toward the exterior along the axis of the well is provided with a layer of electrically resistive voltage stress grading material of the inside surface of the well and electrically connected to the supported end of the rod.

Abstract: A charging device, especially for supplying aluminum in the form of wire to a steel melt for quieting the melt, in which a frame positioned adjacent the melt vessel has an inclined wall on the side facing the melt and a boom slidable along the inclined wall contains feed rollers for feeding a wire through a feed tube toward the melt. The wire is derived from a reel supported in the frame with the reel being driven in payout direction. The wire is cut off at the lower end of the feed tube and is dropped into the melt together with a combustible guide sleeve which is releasably clamped to the feed tube.

Abstract: A terminal block is secured in position in an opening in a sheet-metal panel, with terminal screws extending at a small angle to the panel. Screw-driver thrust against the screws is resisted by engagement of the body of the terminal block against an edge of the opening. Resilient detents for holding the terminal block assembled to the panel are at the sides of the terminal block and are not affected by screw-driver thrust. The terminal block is locked to the panel along one edge of the opening by hooks extending from barriers between the circuit connectors. A circuit coding strip is carried by these hooks, useful in preliminary wiring and after the block is mounted on the panel.One illustrative terminal block has plug-in contacts that are engaged by companion plug-in contacts of a plug-in unit.

Abstract: Thin rectangular metal cups are press fitted into a row of rectangular holes in one and in another metal jigging strip. The patterns of holes in the two strips are identical. A small quantity of a conductive resin is dispensed into the cups of one strip and the cathode ends of a plurality of solid electrolyte capacitor bodies are pushed, preferably simultaneously, into the cups of this strip. A bonding resin is dispensed into the cups of the other strip and the anode ends of the capacitor bodies are pushed into the cups of this other strip. Near perfect registration and alignment of the two terminal cups of each capacitor body is achieved and the cost of terminating may be reduced in this disciplined and automatable method. These advantages are of greatest significance in terminating very small capacitors.

Abstract: A cover for the ignition frame of a sintering apparatus is disclosed wherein the cover includes an enclosed space through which combustion air for the substantially horizontally disposed burners of the sintering apparatus is conducted. Combustion air delivered from a blower flows via a pipe to a central portion of the cover and into the enclosed space where it is preheated and cools the cover and thence flows to insulated pipes connected with the burners. In an alternate embodiment, two enclosed spaces are formed in the cover arranged in the direction of travel of a conveyor belt carrying the product to be sintered. The space arranged in the downstream direction of travel of the belt is provided with burners and the upstream space is provided with combustion air pipes.

Abstract: A stack feeder is described for use in association with a stack mover arranged to advance a haystack in the longitudinal direction of the stack feeder. The feeder includes a base frame and a flail assembly located above the base frame and positioned transversely with respect to said longitudinal direction. Means are provided coupling the flail assembly to the base frame for pivotal movement with respect to the frame about a horizontal axis so that the flail assembly can be moved up and down along an arcuate path above the frame. The flail assembly includes a rotary flail and a hood which extends longitudinally of the flail. The flail is made up of an elongate support rotatable about a horizontal axis, and a plurality of knives carried by the support for action on a haystack in use. Means are provided to move the flail assembly along said arcuate path. The feeder also includes means for rotating the flail at a relatively high speed. Conveyor means are supported on the base frame below the flail assembly.

Abstract: A higher power infrared Pb.sub.1-x Sn.sub.x Te diode laser that is tunable at this high output power at all wavelengths from 6.5 - 32 microns, particularly 6.5 - 9 microns. The diode laser has a P-type laser cavity with a degenerate carrier concentration. A low carrier concentration N-type region is adjacent the P-type region. The N-type region has unique characteristics inherent to a cadmium diffusion from an external source at a temperature of about 350.degree. - 500.degree. C. The cadmium diffusion N-type region forms a flat PN junction with the P-type laser cavity. Dislocation density in the monocrystal forming the completed laser body, even after the cadmium diffusion, is not noticeably higher than in the monocrystal from which the laser is made. A method of forming such a laser, using a short time, low temperature cadmium diffusion process, is claimed.

Abstract: A cable connector for securely connecting an electric cable to the housing of an electric device such as a motor. The connector includes a body and a nut, the body having a rearwardly extending, elongated neck with an internal bore through which may be passed a cable or the like. The neck is externally threaded along at least a portion of its length to receive the internally threaded nut, and the wall of the neck has at least one generally U-shaped slot therethrough to provide at least one forwardly-extending ear movable radially inwardly and outwardly of the neck. The radial thickness of the at least one ear increases forwardly, with the thickness of the ear at its forward end being greater than that of the adjacent neck walls, whereby, as the nut is threaded forwardly onto the neck, the ear is cammed inwardly of the bore to firmly grasp a cable.

Abstract: A method for the separation of segregations from material mixtures is dissed. The method is particularly suited for the sedimentation of high-melting metal alloys and their impurities. In the method, material mixtures are introduced into the heatable rotor of a centrifuge disposed in a cooled vacuum. The rotor is subjected stepwise to the influence of changing gravitational accelerations as well as to a heat shock treatment varying in temperature level and/or duration. Equipment for execution of the method is also disclosed. The rotor of the centrifuge consists of several layers and includes a basic part whose outer surface is braced by a compound material bandage. The inner surface of the rotor is provided with a heat-deflecting, protective coating. A non-rotating cooling means and a central heat source are accommodated inside the rotor.

Abstract: A method of manufacturing a semiconductor device is disclosed, in which a polycrystalline silicon layer is formed over a semiconductor substrate coated with an insulating layer with a window and a first kind of impurity is doped to a first predetermined portion of the polycrystalline silicon layer to a depth at least reaching the surface of the semiconductor substrate. Then a peripheral of the doped portion of the polycrystalline silicon layer is converted into an insulator, and a second kind of impurity is doped into a second predetermined portion of the polycrystalline silicon layer to a depth at least reaching the surface of the semiconductor substrate, thereby providing electrode wiring paths including the first and second predetermined portions.