Abstract: Method and apparatus for the regulation of the flow of fuel gas in the fuel gas supply duct of a heating wall of a coke oven to assure uniform heat distribution in the oven are provided. The regulating means consists of a thin plate having a similar shape to that of a fuel gas supply duct for insertion therein. Pivotally attached to and extending perpendicularly from the outer face of the plate are twin parallel control rods with gage marks inscribed thereon. To effect the regulation of fuel gas flow, the regulating means is inserted into the fuel gas supply duct at an appropriate location and the flow rate is adjusted by pivoting the plate by the manipulation of the adjusting rods.

Abstract: A composition is provided for use as an anti-scaling coating or to produce legible markings on metal products. The composition includes solids of from about 30 to 50 parts by weight of an opacifying pigment, from about 43 to 58 parts by weight of a water soluble alkali metal silicate binder, at least 50 percent of the alkali metal silicate being sodium silicate, the alkali metal silicate having a ratio of silicate to alkali metal oxide of from about 2.60 to 3.25, sufficient cross-linking binder to provide from about 1.5 to 5.0 parts B.sub.2 O.sub.3, the ratio of total pigment to total binder being within the range of 0.50 to 1.0, and sufficient water to give the composition a viscosity of about 800 to 5000 centipoise. The composition adheres when applied to metal products which are at temperatures of at least 250.degree. F. or which are subsequently heated to such temperatures so as to bake the coating.

Abstract: A load indication system monitors not only the total frictional load on the mold oscillator in a continuous casting apparatus, but also monitors the difference in the oscillator load at various locations around the mold to detect mold wobble and load imbalance. In addition, both the total frictional load and the mold wobble are monitored by detecting their peak-to-peak values.

Abstract: The present invention involves improvements in reciprocable pumps. In one aspect, applicable to single action pumps, a quick release mounting means is provided for attaching a fluid end piece to a power frame. The frame has a tapered opening for receiving a barrel portion of the fluid end therein. A wedge device of mateable taper with the opening connects the barrel securely to the frame. The wedge extends around the transverse outer periphery of the barrel portion. Another aspect of the invention involves providing axially rotatable intake or exhaust manifolds. In a multiplex pump, the manifold may be rotatable as a unit, or the section for each conduit may be separately rotatable. This feature permits easier handling when making repairs, especially on larger pumps. Finally, in pumps having non-vertical suction or discharge passages, the valve counterbores are tilted toward a vertical direction, but not more than an angle at which straight-line machining of the suction or discharge passage is still possible.

Abstract: Apparatus to prevent the deposition of dirt and fine air bubbles on the flat end of a piezo-electrical crystal transducer that emits and receives ultrasonic waves consists of a body having an internal passage that angularly directs water in sweeping relation to the flat end of the crystal to keep it cleansed of air bubbles, dirt or scum. A portion of the so-directed water is diverted angularly to and away from the crystal end to thereby produce a pressure at the transducer end of sufficient magnitude to suppress the generation of air bubbles. Part of the entering water enters a vertical water column that couples the transducer to the object being measured while the cleansing portion of the stream is re-directed back into the apparatus to join that in the vertical column to create a water jet of essentially uniform velocity distribution.

Abstract: A tube construction includes first and second tube members 16, 24, each of the tube members 16, 24 having a flared end portion 96. A joint for connecting the tube member 16, 24 together includes an annular resilient seal 98 having a pair of side faces 100. Each of the side faces 100 includes an outwardly tapering flat portion 101 and integral intermediate portion 103 as viewed in cross section. The joint further includes an annular ferrule 18 having a pair of inwardly sloping annular portions 26, 102 and an annular central portion 104 interconnecting the inwardly sloping annular portions 26, 102. Each of the inwardly sloping annular portions 26, 102 engages the flared end portions 96 so that the flared end portions 96 are clamped between the inwardly sloping annular portions 26, 102 and against the side faces 100 with the intermediate portion 101 of the seal 98 clamped between the open ends of the flared end portions 96 to perfect a seal between the two tube members 16, 24.

Abstract: A method is described for producing metal such as iron in a shaft furnace wherein greater than about 80 percent of the ore therein is present in the form of pellets. The improvement involves adding fine ore material to the furnace adjacent to the walls of the furnace, and wherein the fine material is sufficiently fine to reduce the gas flow and protect the furnace lining. Preferably the fine ore material is obtained by separation from the pellets, and is added to the furnace on a controlled basis. Subsequent to separating the fine ore material from the pellets and prior to adding it to the furnace, the ultrafine fraction which would either create material handling problems or be blown out of the furnace when introduced is either (1) separated from the fine fraction which is added to the furnace, or (2) micropelletized prior to addition to the furnace in order to provide a material having suitable properties for flowing into the furnace.

Abstract: An improved coating for electrical or magnetic steel core-plates, having corrosion resistance comprises adding to a known combination of organic quaternary ammonium silicate and ethylene/acrylic or ethylene/vinyl acetate copolymer a small amount of a barium, strontium or lead chromate.

Abstract: An improved hardenable inorganic grouting composition cartridge comprising: (1) cartridge filler ingredients comprising, (a) a dry inorganic cement powder, and (b) liquid containing capsules, and wherein the liquid is reactive with the inorganic cement, and wherein the capsules are pressure sensitive and capable of being progressively ruptured by the force of the anchor element, (2) an elongated flexible tubular casing containing the filler ingredients, and (3) a reinforcing member, preferably a flexible one, which adds lengthwise rigidity to the cartridge casing.The grouting composition cartridge of this invention is injected into a hole in a support structure. An anchor element is then introduced into the hole containing the grouting composition cartridge. The grouting composition is released from the casing thereby forming a hardened grout around the anchor element.This invention also includes methods of manufacture and usage of the improved cartridge.

Abstract: A method is provided for making single crank throws for built-up crankshafts. The method includes heating an elongated workpiece having a saddle-shaped central area on one surface thereof and forming the workpiece into V-shape by pushing it with a punch into a first-forming die having legs angled between 35 and 65 degrees. The punch is V-shape with opposed surfaces inclined at substantially the same angle as the first-forming die. The workpiece is then reheated and pushed with a punch into a second-forming die having inwardly converging surfaces at an outer portion of the cavity and parallel sidewalls joining the inner end of the outer die surfaces. The apparatus includes a bottom die having a long generally rectangular cavity and top die punch rotatably mounted about a vertical axis on the underside of the press crosshead and a motor drive for rotating the top die punch to alternate positions for forging opposite halves of the workpiece in the lengthwise direction.

Abstract: An improved polypropylene blend for biaxial orientation into thin films is made by combining low molecular weight polypropylene, a peroxide agent, a nucleating agent, and linear low density polyethylene in a pelletizing extruder.

Abstract: Process for removing hard to remove deposits containing elemental sulfur and multivalent compounds from a surface comprising (1) contacting the deposits with a cleaning composition comprising (a) a major portion of aliphatic amine, (b) water, and (c) an oxidizing or reducing agent, (2) allowing the cleaning composition to remain in contact with the deposits for sufficient time to allow sufficient dissolution of said solid to take place to allow removal of the deposits to take place, and (3) applying such force as is necessary to remove these partially dissolved deposits from the surface. A preferred cleaning composition comprises (1) from about 60 to about 90 volume percent aliphatic amine, (2) from about 10 to about 40 volume percent water, and (3) from about 1 to about 3 weight percent of a moderate oxidizing or reducing agent, such percentages based on the total composition.

Abstract: An improved coating for electrical or magnetic steel core-plates, having corrosion resistance comprises adding to a known combination of organic quaternary ammonium silicate and ethylene/acrylic or ethylene/vinyl acetate copolymer a small amount of a barium, strontium or lead chromate.

Abstract: The invention is directed to an electrotreating apparatus, utilizing horizontal-pass electrotreating cells wherein the strip passes through the corridors of one or more of such cells. Electrolyte is caused to flow through the corridor(s) and overflow into a collector tank for recycle through the system. Electrode replacement is facilitated by inserting the electrodes through the outer walls of each corridor. Proper sealing of such electrodes is achieved by utilizing an electrode with a T-shape cross-section, in which the top of the T is a flange for exerting a bearing, liquid-tight sealing force against the outer surface of the corridor wall, while the vertical portion of the T comprises that part of the electrode which is inserted into a hole in the corridor wall.

Abstract: In the production of coined sheet products, particularly sheet steel, rolling pressures sufficient to produce a decorative pattern often result in the formation of undesirable "spikes" on the sheet surface. These "spikes" can require numerous paint coatings for effective coverage. Spikes are eliminated by use of a roll design in which the peaks of the pattern roll are provided with a severely sloping draft angle, the minimum angle for "spike" elimination being a function of the roll diameter, the coined depth of the pattern, the thickness and hardness of the sheet itself and the ratio of the volume of the pattern peaks to the pattern valleys.

Abstract: A mine roof-truss-bolt system and a novel clip for use in such systems are provided. The system includes opposed anchor members installed in the roof, a reinforcing member located in a passage below the roof and extending longitudinally to locations past the lower ends of the anchor members, and clips abutting the roof for connection with the anchor and reinforcing members. The system also includes apparatus for placing the anchor and reinforcing members in tension for additional support of the roof. The members are connected to the clips at locations of substantially the same elevation on the clip below the mine roof.

Abstract: An apparatus is provided for performing multiple operations on a conventional open-die forge press, and includes a rotatable top punch assembly and stationary bottom die assembly. The top punch assembly includes a mounting fixture secured to the press crosshead, a holder plate rotatably mounted on the fixture, a plurality of punches extending downwardly from the holder plate, and motor means for indexing the punches sequentially into forging position over the bottom die assembly. A method is also provided for making valve pots, including upsetting a heated metal block in a split die and punching a hole through the block, the improvement in which during the upsetting step a vertically reciprocable member is extended so as to close a bottom opening in the split die, in order that the split die will function as a closed die, and during the punching step the reciprocable member is retracted so as to allow a punch-core to fall through said opening.

Abstract: A continuous casting mold is adapted for measurement of the clamping force exerted on the mold sidewalls. A method of adjusting the mold size includes measuring the clamping force and adjusting it to a predetermined value, preferably a value related to the size to which the mold is adjusted. The method may also include monitoring the clamping force during casting and adjusting it so as to maintain it constant at said predetermined value.

Abstract: An improved hardenable inorganic grouting composition comprising (1) a dry inorganic cement powder, (2) liquid containing capsules, and wherein the liquid is reactive with the inorganic cement, and wherein the capsules are pressure sensitive and capable of being progressively ruptured by the force of the anchor element, and (3) a small amount of a lubricant in such form and amount to allow the cement powder and the capsules to flow as free flowing solids. This grouting composition is preferably in the form of a cartridge having an elongated tubular casing.

Abstract: A sealing means for a coke oven chuck door. The sealing means includes a metal sealing member which has springiness and flexibility and is supported cantilever fashion on the inside of the door frame. An insulation block is interposed between the sealing member and door frame. The sealing member has a knife edge flange which extends around its perimeter and is automatically aligned with a sealing surface on the main door on which the chuck door is mounted.