Abstract: A railway car suitable for rotary or bottom dump unloading. The body bolster is fitted with vents to permit a heating of the slope floor at the ends of the car to thaw the lading prior to unloading.

Abstract: A container support apparatus for supporting cargo containers being transported on railroad container cars the apparatus comprising a pair of pivotal support pedestals spaced opposite from each other along the side sills of the railroad container car and connected to transverse linkage to permit raising or lowering the pedestals from either side of the railroad car.

Abstract: A railway idler car used as a spacer car between loaded cars that carry very long objects, such as plates, girders, structural steel, pipe, poles and the like. The car is of a skeleton design and is incapable of carrying freight.

Abstract: A distributor for introducing molten metal into a continuous casting machine. The molten metal is allowed to flow through two interconnected compartments before it is introduced into the continuous casting machine.

Abstract: A coupling for fluid conduits contained in a hollow trunnion of a basic oxygen furnace. The coupling is used to connect a plurality of fluid supply conduits to a plurality of fluid distribution conduits in the basic oxygen furnace.

Abstract: A method of removing complexed zinc-cyanide from wastewater involving a multiple stage process including, in a first step, control of ferrous ions to a critical minimum concentration of 250 to 400 ppm, together with pH control in the first and also a second step, together with recycling of a portion of sludge precipitated in the process.

Abstract: Multi-channel automatic on-line ultrasonic inspection system for real time high-speed pulse echo testing is done across the width of a hot moving workpiece, such as steel plates and the like. In addition to a multiplexed transducer array search unit, the system includes an adjustable ultrasound fluid couplant, a main ultrasonic instrument modified with a digital multi-channel R.F. attenuation controller and a digital automatic flaw gate controller combined as on-line calibration means. The calibration means automatically corrects echo pulses for attenuation errors due to effects of variations in workpiece alloy or composition and temperature, and timing errors due to effects of variations in thickness and transducer gap, respectively. System further includes an ultrasonic data buffer/controller (UDBC) for digitizing, encoding and storing corrected or uncorrected flaw area data passed by the flaw gate during workpiece movement.

Abstract: This invention is directed to a method of beneficiating a material, such as coal, by subjecting the coal to be treated to the action of a dense-media cyclone, where the dense-media thereof is a slurry of magnetite in water. More particularly, the present invention relates to a method to control the separating gravity of said cyclone within predetermined limits by (1) measuring the flow rate and percent magnetite in the flow discharging from the cyclone, and (2) based on pre-calibrated data, adjusting the feed flow and content, i.e. magnetite and/or water, into said cyclone, thereby controlling said separating gravity within predetermined limits.

Abstract: Ingot yield is improved by changing teeming practice to pouring ingot body and hot top by weight rather than by volume to a mark on a hot top casting. Correct weight addition to the ingot hot top is calculated by a computerized weight-loss weigher system using either a value related to ingot mold body size or a precentage of body weight. Calculation is initiated either manually or automatically when hot metal level is detected at the bottom of the hot top casting.

Abstract: This invention is directed to an electroplated product having improved resistance to corrosive attack, and to the method of making such product. More particularly, the invention hereof relates to a zinc or zinc-alloy electroplated product containing a homogeneous dispersion of corrosion inhibitive pigment produced by subjecting a ferrous substrate to an electroplating bath containing a corrosion inhibitive pigment, such as barium chromate.

Abstract: Driving a dividing shear to a home position after cutting a workpiece is done without oscillations at the home position. Control uses shear position feedback signal to shape nonlinearly a variable shear velocity reference signal such that no overshoot occurs. Adaptive control procedure automatically adjusts variable shear velocity reference signal to compensate for dynamic changes in cutting operation.

Abstract: An industrial wastewater treatment method is described whereby heavy metals dissolved in the wastewater are precipitated as a slurry which, when allowed to settle, will form a sludge containing at least 10 weight percent solids. In the method, an aqueous suspension or solution of a neutralizing agent is introduced into a first reactor. A suspension containing particles of carrier agent is also introduced into the first reactor. A portion, if not all, of the neutralizing agent is adsorbed on the surface of the particles of the carrier, which are maintained in suspension in the first reactor. The carrier, with its adsorbed neutralizing agent, is passed to a second reactor and simultaneously the contaminated industrial wastewater is added to the second reactor. The pH of the wastewater is adjusted to a range between 8.4 and 10.6 by the neutralizing agent. Within such pH range, a substantial portion, if not all, of the heavy metals are precipitated in the form of a slurry.

Abstract: This invention relates to a combined method of welding and annealing an aluminum-zinc alloy coated ferrous wire, and restoring the corrosion resistant properties to the annealed areas of said wire. The aluminum-zinc coating consists of an alloy overlay and an intermetallic alloy layer, between said alloy overlay and the ferrous wire. The preferred method includes the steps of (1) upset welding two alloy coated steel wires, (2) annealing the weld joint, at a temperature between about 1200.degree. and about 1450.degree. F. whereby during such annealing the weld joint is subjected to brushing to remove said alloy overlay and to prevent the formation of oxides on said intermetallic alloy layer, (3) removing the burr formed during such welding, and (4) cooling. During said cooling, or alternatively by reheating to a maximum temperature where the aluminum-zinc alloy coating on the wire begins to melt, i.e. about 900.degree. F. (482.degree. C.

Abstract: Improved infrared camera system better enables furnace burden surface temperature measurements and temperature profile measurements and displays of such measurements to be made at various stocklines. An infrared data processing system is incorporated with the camera system which provides automatic acquisition, validation and preprocessing of thermal images from an infrared camera, defines and extracts key features of the thermal images, provides automatic classification and storage of thermal images, periodically reports on displays and printer burden temperature information, and provides convenient data retrieval and data archiving capability. The invention may be incorporated in new or existing methods and apparatus.

Abstract: A tubular cobbler suppressing device for a rolling mill producing rod product of diameter D, wherein there is a preferred relationship among rod product (D), the internal diameter (D.sub.1) of tubular guide members of a pouring reel and internal diameter (D.sub.2) of the cobble suppressing device, such thatD.sub.1 .gtoreq.2.5 D.sub.2 andD.sub.2 >D but .ltoreq.3 D.

Abstract: An impact-actuated tool for gripping and unscrewing an atomizing air tube which is screwed into the internal structure of a burner assembly. The tool includes an elongated bar member having slidable hammer means thereon and a gripping head mounted on one end thereof, said gripping head being radially expandable and torsionally deformable.

Abstract: A corrugated metal open top pipe drain for the collection and removal of surface water from paved areas, such as highways, parking lots, airports and the like.

Abstract: A method for increasing the wet bulk density of coking coal charges for code ovens which charges contain at least about 6 and as much as 13 weight percent moisture, to an optimum level of between about 47 and 50 pounds per cubic foot (753 to 801 kg per cubic meter) and for controlling and maintaining the bulk density at such optimum levels, the method including:(a) forming a 5 to 20 weight percent aqueous dispersion of a surfactant having a desired viscosity, and(b) applying a quantity of the aqueous dispersion to a quantity of coal equivalent to between about 0.5 and 2.5 pounds (0.227 and 1.135 kg) of surfactant per ton (907.2 kg) of coal,the surfactant being an alkylphenoxypoly (ethyleneoxy) ethanol having a general formula: ##STR1## where R is an alkyl group having between about 8 and 12 carbon atoms, andn is an integer between 2 and 30,and is characterized by an HLB number in the range of about 4 and 18.

Abstract: Method and apparatus for aligning spray nozzles which have been disposed to apply a liquid coolant in a desired pattern on a target area. The invention includes the use of a light beam projected onto the target area to indicate any misalignment and the provision of means to adjust the spray nozzles so that the adjusted position results in a desired pattern of distribution of liquid coolant on a target area.

Abstract: Molten zinc coated strip is contacted with an internally cooled roll upon which is provided a thin film of liquid that serves to maintain effective heat transfer contact between the surface of the roll and the surface of the strip across the entire face of the strip.