Abstract: Apparatus for safely lifting a roll of material having a horizontal eye is disclosed. The apparatus consists of a tong having horizontally relatively movable lifting legs which each include lifting decks to engage the roll's eye. Sliding members are provided to yieldingly address the roll ends and to move horizontally and vertically during closing of the lifting leg under the control of a dampening means. Additionally, the sliding members are maintained stationary with the roll during movement of the tong to engage the eye with the lifting decks to avoid scraping of the roll ends. A spring means is provided to return the sliding member to its rest position following the release of the displaced rolls.

Abstract: A material handling vehicle is provided which includes a lower truck chassis and an upper material handling structure pivotally supported by the lower chassis, all functions of which vehicle are driven by a single engine. The material handling vehicle is controllable from a main truck cab on the truck chassis or from an upper operator's cab mounted on the upper structure. The single engine provides highway travel power and power to all excavator functions, while the vehicle, including remote travel and implement manipulation capabilities, may be controlled from the upper operator cab. The main engine, when used for over the highway travel, powers the driven wheels through a power shift transmission in a conventional manner.

Abstract: Apparatus for pneumatically stamping identifying impressions on a workpiece is provided. The apparatus includes a double-acting air cylinder having a hollow piston rod. An impact piston is provided inside the barrel formed inside the piston rod to, alternatively, seal an aperture in the piston or to travel inside the barrel in order to strike a plunger mounted in a plunger housing slidably supported by the leading end of the piston rod. A stamping head having an anvil adjacent to the stamping characters is provided to be mounted on the end of the plunger housing. In operation, compressed air is injected behind the piston rod thereby extending it toward the workpiece while compressed air is provided ahead of the impact piston to retain it in seated position on an aperture in the piston of the piston rod. When the stamping characters engage the workpiece, further advancement of the piston rod closes the source of compressed air ahead of the impact piston and opens venting apertures.

Abstract: Method of controlling heat input into a coke oven to obtain a desired temperature of the coke mass of the oven at the time of pushing comprising (1) determine the moisture content and heat of carbonization of a sample of coal scheduled for transfer into the oven; (2) determine a coal mass, a target coking time, and an efficiency for said oven; (3) calculate the heat requirement and temperature of the coke mass during the coking operation of the coke oven based upon the coal moisture, the heat of carbonization, the coal mass, the target coking time, and the efficiency; (4) determine the temperature of the coke mass during the coking operation; (5) compare the temperature determined from step (4) with the calculated temperature based upon the calculation of step (3); (6) analyze any deviations noted in step (5) to obtain a more accurate heat requirement for said oven, and (7) vary the heat input into said oven in accordance with the more accurate heat requirement.

Abstract: An apparatus for simultaneously transporting a plurality of wheeled carriers is provided. First and second end frames are interconnected by central spine elements from which extend a plurality of arms which define discrete cells configured to accept the individual carriers. Straps between the end frames and arms or between arms are provided to secure the carriers to the transportation apparatus. In use, the wheeled carriers may be moved as a group while allowing a carrier to be removed from or inserted into any cell without disrupting the other carriers and without necessitating the carriers themselves being placed on a larger wheeled carrier for transport.

Abstract: A movable member mounted in an opening in the back support section of a multisectioned surgical table. The movable member is so pivotally connected to a portion of the perimeter of the opening that the movable member can assume a range of articulated positions relative to the back section for lifting portions of the patient's body. The movable member has contoured edges for providing a smooth, preferably padded surface against which the portions of the patient's body can be supported and restrained against lateral rolling. The edges of the movable member are preferably also contoured to define a perineal cutout. Means are provided for locking the movable member into selective positions within the range of articulated positions.

Abstract: Apparatus is provided for allowing the draining of a liquid containing an entrained gas from a discharge tube, the separation of the gas from the liquid and the directing of the liquid to a drain pipe. The apparatus includes a vertical elongated conduit member having venting apertures formed therein and first and second vertically inclined arms extending therefrom. An elongated directing conduit is coaxially supported within the elongated conduit at a distance beneath the discharge tube to form an air gap therebetween. In operation, a source of suction is connected to the first arm and draws atmospheric air into the system through the venting apertures and through the second arm. The discharge tube is then opened allowing the liquid/gas mixture to enter the drain apparatus in which the gaseous constituent is drawn from the liquid via the air gap and the liquid constituent is conducted past the venting apertures by the directing conduit thereby avoiding any splashing and escape of the liquid.

Abstract: A method for playing draw poker in which cards used in previous hands are retired from play and a time limit is imposed for completing a predetermined number of hands.

Abstract: A method of vaporizing a multicomponent liquid, such as a hydrogen peroxide and water solution, for injection into a vacuum chamber including the steps of metering successive predetermined increments of the liquid at a predetermined rate onto a heated surface in a vaporization chamber. Upon exposure to the heated surface, each liquid increment is substantially instantaneously vaporized before the next succeeding liquid increment is metered onto the heated surface to produce a multicomponent vapor increment having substantially the same weight percent composition as the multicomponent liquid increment. Each vapor increment is passed into the vacuum chamber.

Abstract: An extruder of the variety including a body having a cylindrical bore therethrough, and a shaft rotatably supported within the bore. The shaft includes at least a first helical flight means defining a main channel. The shaft is divided along its length into a feed section, an intermediate melt section, and at least one metering section. A portion is included in one of the sections which has a plurality of discrete grooves arranged in a discontinuous helix cut into the main channel. There is preferably a plurality of staggered rows of grooves within the main channel, the axis of each row being substantially parallel to the helical axis of the adjacent first helical flight means. The grooves are adapted to so receive the material forced through the extruder that the average shear force exerted against the material, and thus, the average temperature of the material, is reduced while the output of the material is maintained at a predetermined level.

Abstract: Cellular steel flooring is provided which includes corrugated steel decking and separately applied cover plates which establish a lengthwise cell in cooperation with a valley and the two connecting sloping sidewalls. The resulting cellular steel decking permits distribution of electrical wiring or ventilation air throughout a building without requiring perforations or penetrations of the crest surfaces or sloping sidewall surfaces of the decking. The resulting wet strength of the cellular steel decking remains undiminished. The exposed corrugated undersurface of the corrugated steel decking provides an improved adhesion surface for subsequently applied fireproofing materials. Special cover plates for noncellular troughs are provided along the locus of transverse electrical trench structures to facilitate the mounting of the electrical trench and to permit strengthening concrete to be applied beneath the electrical trench.

Abstract: Apparatus is provided for removing the heat from within a generally sealed enclosure having a heat generating means disposed therein, such as a surgical light. The enclosure of the light includes a slightly domed top, a generally cylindrical side wall and a round bottom lens. The heat generating means consists of a plurality of lamps located within a cylindrical housing having a closed end which is located within the enclosure in the center of the top thereof. Radial fins extend about the circumference of the heat generating means, certain of the fins having arms extending radially therefrom. A large curved reflector having a series of lower slots forms an annular inner wall between the arms of the fins and the lens adjacent the outer circumference thereof. As such, the heat generated by the lamp housing is passed to the fins and travels to heat the upper ends thereof.

Abstract: A method of providing a mixture of lean and rich gas of a desired composition by means of a jet compressor system comprising two or more jet compressors comprising:(1) adjusting the jet compressor system being used to mix the lean and rich gas to provide a leaner gas mixture than the desired composition;(2) then adding a predetermined amount of rich gas to the leaner gas mixture to attempt to obtain the desired composition; and(3) varying the amount of rich gas added to the leaner gas in response to the measurement of gas properties in the jet compressor system to thereby more nearly obtain a gas of the desired composition. Preferably the lean gas comprises air, blast furnace gas, or BOF gas, and the rich gas comprises methane, natural gas, propane, or butane.

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: 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: An automatic overhead trolley-driven magnetizing system for inducing a residual magnetic field in seamless steel pipe in order to detect non-visual defects therein by the magnetic particle inspection method is described. The magnetizing system consists of a trolley-driven magnetizing unit which moves on an overhead runway until a retractable limit switch causes the unit to stop upon reaching the trailing end of the pipe, an electrical contact pad then lowers onto the surface of the pipe, and introduces a magnetizing current to the pipe sufficient to cause magnetic particles deposited on the pipe surface to indicate the location of defects in the pipe. The magnetizing system is arranged to remain remote from the manufacturing flow path of the workpiece until the magnetization thereof is required.

Abstract: A method and apparatus for the control of the precoating process employed in an effluent filtration baghouse are described. An electrically operated pressure switch is provided to indicate the precoat duct vacuum pressure by measuring the vacuum pressure of the clean side of the baghouse. Should a precoat duct pressure insufficient to sustain the flow of precoat material be indicated, the pressure switch will halt the feed of precoat material into the precoat duct, thus avoiding the congestion of the precoat duct by the precoat material and the consequent inadequate precoating of the baghouse bags.

Abstract: An apparatus for removing adherent magnetically attracted particles from the surface of the magnetic head pulley of the conveyor belt used in a dry magnetic separator without disrupting the magnetic separation process. An array of magnetically soft iron tines of several sizes is provided to be moved into and out of close proximity with and substantially normal to the magnetic head pulley surface. When in proximity to the magnetic head pulley, the soft iron tines are induced with a magnetic force and because of their shape, a magnetic field gradient is formed in the direction of the tines having a force sufficient to attract the particles from the head pulley to the tines. When the tines are moved away from proximity with the head pulley, they lose most of their induced magnetism and the attracted particles fall into a discharge chute or collection box.

Abstract: A method for repairing heavy-duty tires which have experienced separation at the intersection between the tread and sidewall is provided. The method comprises the steps of removing the loose rubber surrounding the separated area, buffing the area to a smooth finish, applying a rubber adhesive to the buffed area, firmly applying a blanket of uncured rubber of approximately one-half inch thickness to the buffed area and curing the rubber to the carcass. Alternatively, a thin blanket of tread rubber may be applied over a thin blanket of cushion gum to a total thickness of applied rubber of approximately one-half inch.

Abstract: A connector for affixing the top rail of a wire fabric fence to the fence posts thereof is described. The connector consists of a resilient metallic strip fabricated into a loop portion from which depend leg portions which extend inward, substantially parallel, then outward. When inserted into a fence post the connector legs enter into yielding frictional engagement with the inner walls thereof, said engagement being enhanced by the engagement of said parallel portions with one another thereby increasing the resiliency of the connector.