Abstract: The presence of yttrium and/or related rare earth elements in amounts ranging from a positive amount to up to but not including 0.1% by weight in alloys described in U.S. Pat. No. 4,086,085 issued Apr. 25, 1979 significantly improves the hot workability and resistance to grain growth of said alloys.

Abstract: A training has for drilling arm and foot muscles of a user includes a thick plate like main body made of soft and flexible material and having formed therein a plurality of elongated holes extending in a longitudinal direction, and a plurality of rods made of heavy metal and insertable into the holes of the main body. The main body has a substantially C-shaped configuration in a free condition. The training aid further has a pair of fastening tapes secured to the main body for detachably mounting the aid around the wrist and ankle of user.

Abstract: An optical lens having a hyperboloid surface is formed by cutting or grinding a workpiece made of glass or plastics while rotating it about its axis, while a cutting or grinding tool having a linear working edge is rotated or swung about a central axis, the working edge is separated from the center axis by a given distance and is inclined with respect to the central axis by a given angle. The envelope of the working edge forms a hyperboloid of one sheet of revolution along which the workpiece is cut or ground. An eccentricity of the hyperboloid curve can be adjusted by changing the inclined angle of the working edge with respect to the central axis.

Abstract: Herein disclosed is a small-sized switch of the type, in which a clip-shaped moving contact made coactive with a knob is selectively and simultaneously brought, by operating the knob, into sliding contact with both the outer sides of at least two of a plurality of fixed contacts arranged in the bottom of a switch body, thus effecting the switch changing operations. The small-sized switch has its plural fixed contacts made of a round wire.

Abstract: A training aid for drilling muscles of a user comprises a rectangular lead plate which can be easily bent, and a cover member made of soft and resilient rubber. The lead plate is completely surrounded by the cover member. The training aid can be mounted on user's wrist, ankle, arm, leg, neck, etc. by bending the lead plate. More than one training aid can be piled one over another.

Abstract: An apparatus for counting the number of articles of the same kind comprising a measuring chute rotatably journalled to a horizontal shaft and being arranged in an inclined manner, a parts-feeder for supplying the articles onto the measuring chute substantially at a point of the horizontal shaft, a load detector for detecting torque generated on the horizontal shaft when the articles supplied on the measuring chute are discharged from the chute at its lower end remote from the horizontal shaft to produce a torque output and a measuring circuit including a circuit for detecting peaks in the torque output to produce pulses and a counter for counting the number of peaks.

Abstract: Oxygen is introduced onto the surface of a molten ferrous metal through at least one water-cooled lance disposed above the melt surface while an oxygen free gas in which is entrained ground solids is intermittently introduced into the molten ferrous metal through tuyeres disposed below the melt surface.

Abstract: In a process for the production of steel with low hydrogen content in a through-blowing oxygen converter with nozzles arranged below the bath surface in the refractory brick lining, the nozzles composed of concentric pipes for introducing oxygen sheathed by a protective medium, and with an oxygen lance projecting into the converter opening, for a hydrogen content as low as possible of about 2 ppm maximum, at least half the total quantity of oxygen is blown onto the bath and the nozzles arranged below the bath surface are temporarily operated toward the termination of refining with a hydrogen-free gas.

Abstract: A battery powered device which can continuously monitor and detect nuclear radiation utilizing fully integrated circuitry and which is provided with an alarm which alerts persons when the radiation level exceeds a predetermined threshold.

Abstract: An extrusion consisting of a tube having a circular outer cross section, a number of equidistantly spaced, radially extending, elongate ridges around the tube, and a groove between each pair of adjacent ridges.

Abstract: An apparatus for automatically adjusting phases of composite synchronizing signals and burst flag signals of a plurality of composite video signals supplied from a plurality of television cameras in order to effect cut-switching, mixing, etc.

Abstract: A method and a means for introducing close-grained carbonaceous fuels, which are suspended in a carrier gas, and oxygen into a molten iron bath are described.In this method the fuel and the oxygen can be alternately introduced through the same introduction passage of a tuyere into a molten iron bath below the surface of the bath.The means provides for alternate supply of fuel or oxygen and is regulated by means of the oxygen line pressure.

Abstract: A process for producing steel in a convertor in which energy is supplied by introducing carbon containing materials into a pig iron melt in said convertor and oxygen is supplied to said melt, and the supply of carbon containing materials to said melt is discontinued when the carbon in said melt is not lower than 2%, and thereafter completing the refining of said melt with oxygen whereby the nitrogen content of the finished steel produced is lower than it would have been had the supply of carbon to said melt been continued to the end of refining.

Abstract: An improved small-sized rocker switch with indicator is provided. The switch is constituted by a housing having at least one open end; a main contact disposed in the housing; a cover member attached to the open end of the housing; a movable lever disposed in the housing such that its one end is located in the housing while the other end is projected outwardly from the cover member; a converter provided at one end of the movable lever and adapted for opening and closing the main contact; a switch actuator mounted tiltably on the cover member and having an internal cavity, the switch actuator further having a window through which the internal cavity is observable and a bridge member disposed in the internal cavity and connected to the other end of the movable lever; and a substantially U-shaped plate-like indicate member mounted in the internal cavity of the switch actuator so as to saddle over the bridge member, the indicator member having free ends mounted on the cover member.

Abstract: A process is disclosed for the production of paper and paper-like products which consists of the addition to the papermaking furnish of kraft lignin or modified kraft lignin and poly(oxyethylene).

Abstract: A small switch comprising a plurality of switching elements with a hole which are oscillatably disposed one in each switch body and a single switching rod inserted through the holes of the switching elements whereby the contacts in a plurality of small switches can be made or broken simultaneously by operating the switching rod from the outside of the electronic device containing the switches. This small switch has projections and recesses on both sides of the switch body where the holes are formed so that a plurality of switches can be connected in series by fitting the projections of one switch into the recesses of other switch.

Abstract: A box such as a pencil case comprises a main portion having a bottom wall and a side wall and made of a thin metal plate, a lid portion having a top wall and a side wall and made of a thin metal plate, and a hinge member for pivotably connecting the lid portion to the main portion along an axial line laying in the side walls. The hinge member comprises first and second recesses formed in a lower edge of the side wall of lid portion and extending in the axial line, first and second shafts formed at the lower edge of the side wall of lid portion and extending in parallel with the first and second recesses, respectively, and first and second grooves formed in the side wall of main portion, the first and second shafts being rotatably inserted into the first and second grooves, respectively.

Abstract: A liquid smoke with superior toning (meat coloring) properties is produced from hardwoods by an automated process in which the raw materials, temperatures and other process variables are carefully controlled within narrow limits to yield a uniformly high quality product.