Abstract: A cutting table assembly for oxy cutting comprising a cutting table having a slab loading face and mounted for pivotal movement between a loading position in which the loading face is generally horizontal and a cutting position in which the face is oblique, and a pair of torches mounted on the table. The loading face is constituted by a pair of loading subfaces separated by a slot and the torches are mounted in the slot below the loading face. The torches are positioned at opposite ends of the slot prior to the initiation of the cutting action and, upon the initiation of the cutting action, move toward each other and cut into opposite ends of the slab. A pair of gantries are mounted on the table and each carries a deburring device positioned in overlying opposition to a respective torch. Each gantry further includes a plurality of spaced downwardly directed nozzles which are supplied with compressed air to generate an air curtain.

Abstract: The invention concerns a procedure for flame-cutting a slab using at least one oxycutting torch at a workstation and a device for implementing this procedure. The slab and the oxycutting torch are moved in relation to each other, with the slab arranged in a cutting position such that its primary plane lies at an angle of −10° to −20° with respect to the vertical plane.

Abstract: A device for fabricating a tank head prior to attachment to a tank. A movable turntable of the invention holds the tank head horizontally on its rotatable top surface. The movable turntable travels on rails so that is can move the tank head under an overhead frame of the invention. The overhead frame is provided with frame rails on which a movable burner and a movable attachment holder independently travel so that they can be accurately positioned over the head. The movable burner can be lowered and raised in order to cut holes in the head at desired locations on the head. The movable attachment holder and an attachment that is removably secured to the attachment holder can also be lowered and raised in order to properly position the attachment relative to a hole in the head so that the attachment can be tack welded to the head.

Abstract: An apparatus (10) for heat treat hardening multiple wear surfaces (24,26,28) of a metal workpart (14). Flame burners (38) and associated trailing quenches (36) travel along a linear and vertical path (13) across the workpart (14) to flame harden the wear surfaces (24,26,28) thereon. The workpart (14) is mounted on support studs (60) extending from a turntable (52), and clamping arms (66) securely engage the workpart (14) with the support studs (60). The turntable (52) rotates the workpart (14) relative to the travel path (13) of the flame burners (38) to move flame hardened surfaces (24,26,28) out of the travel path (13) and move unhardened surfaces (24,26,28) into the travel path (13) for flame hardening by the flame burners (38).

Abstract: A strong magnetic field, for example in the range of 500-50,000 Gauss, is applied across a tundish feeding continuous casting machines. The magnetic field, substantially perpendicular to the principal direction of flow within the tundish, provides very even flow in the tundish, uniform residence time and minimizes vortexing. The application of the magnetic field increases the percentage of inclusion particles removed from the melt during its residence within the tundish.

Abstract: A method and apparatus for mechanically controlling the flame cutting and/or connection welding of workpieces. The difficulty encountered during the mechanized burning of holes in vessels, containers or tanks and the welding of connecting members into these holes is that the cutting and welding apparatus need to be guided in such a way that not only do they not contact the surface of the vessel, container or tank, but they are also kept a fixed distance from this surface. Therefore, control of the cutting and/or welding process is effected in conformity with the actual dimensions of the workpiece that is being worked on. In particular, this control is undertaken in conformity with the circumferential line of the hole for a given connecting member, and also in conformity with the curved surface of the vessel, container or tank. The peripheral line of the connecting member is first sensed and is graphically or electromagnetically recorded.

Abstract: Apparatus for cutting a metal workpiece including pipe in any desired shape and in a cutting cycle governed by a numerical controller having a plurality of separate output control signal channels. The apparatus is highly versatile and automatically operable to cut any preselected contour in accordance with control or program instructions carried on a control tape. In an illustrative embodiment of the cutting apparatus, a metal cutting torch is supported on a first support and the workpiece to be cut is mounted on a second support so arranged relative to the first support that the relative movement between the workpiece and the torch allows a cut to be made along X and Y axes at right angles to one another. The cutting torch is power driven about its own longitudinal or W axis by a reversible motor and is power driven about a fourth or Z axis to vary the bevel of the cut.

Abstract: The invention relates to an apparatus for the continuous hardening of pump casings by means of flame hardening, with or without modifications to the core characteristics. As a result the life of the thus treated pump casing is considerably increased, even if it is exposed to a high degree of wear. This is achieved in that the horizontally positioned pump casing is moved past the flame hardening apparatus about a vertical axis and is simultaneously moved out of the horizontal position in such a way that the cooling water is removed over the already hardened inner wall surface.

Abstract: Apparatus for cutting notches in the outer surface of a cylindrical drum includes a machine frame, and a laser cutting set which provides a laser beam to cut the notches in the drum. The notches are provided to allow sheet steel strips to be later fitted on the drum, and thus form a cutting tool useful in the production of collapsible box blanks. The apparatus also includes a movable carriage for supporting the laser cutting set, and a mounting shaft is supported by the carriage for rotatably supporting the drum. A drive wheel, coaxially fitted to the mounting shaft, rotates the shaft, and the drive wheel has an engagement surface which corresponds to a cutting edge diameter later defined by the positions which the cutting edges of the steel strips assume beyond the outer circumferential surface of the drum.

Abstract: A method and apparatus are disclosed for shaping an end of a tube in a configuration such that it may be joined to the surface of another body as by welding. The method disclosed involves profiling the end of a tube to conform to the surface of a body to which the tube end is to be joined, with a notional line on the end face that corresponds to the theoretical line of contact of the tube and body, cutting the tube wall at the profiled end to provide a beveled surface over the face of the end to the outer peripheral surface of the tube, and controlling the cutting so that the bevel surface formed progresses inwardly through the tube wall thickness to form a transition line on the profiled end face that substantially follows the notional line of contact between the innermost and the outermost peripheral edges of the profiled end face.

Abstract: Apparatus for cutting a pipe end for intersection with another surface comprising a horizontally positioned and movable boom, roller means to support and axially rotate a horizontal pipe parallel to the boom, a photocell scanner mounted on the boom and positioned to follow a template circumscribing a pipe on the roller means, drive means responsive to a signal from the photocell scanner, adapted to move the boom horizontally in either axial direction as the photocell scanner follows the template, and a cutting torch movably supported by a mounting on the boom and positioned to cut through a pipe, rotating axially on the roller means, in a cutting path having the same contour as the template.

Abstract: A pipe having a guide pattern or template mounted on and surrounding it is rotatable about its longitudinal axis while a pattern follower actuates a cutting or welding tool to move longitudinally as the pipe rotates. The follower and tool are carried by a frame supported on the pipe by rollers. The frame is mounted on a support for universal tilting and for horizontal sliding in one direction to ensure that the follower and tool bear a constant relationship to the pipe irrespective of any undulations or out-of-round features of the pipe.

Abstract: A flame-cutting apparatus comprising a burner guided for movement around a rotating pipe to travel along a curved path along the surface of the pipe corresponding to the line of intersection of two pipes. The burner is pivotably supported on a guide for movement about an axis perpendicular to the axis of the jet flame of the burner. A template corresponding to a chamfer to be produced in the surface of the element being cut by the jet flame includes two parts, one being pivotable with respect to the other about an axis common to both parts. A scanner rotates at an angular velocity corresponding to the angular velocity of rotation of the pipe being cut and the template is resiliently urged against the scanner to be axially displaced thereby and to transmit such displacement through a mechanism to effect pivotal movement of the burner to produce the desired chamfer of the cut edge of the pipe.