Abstract: An apparatus for cutting a duplicate form includes: a) a rack portion including a frame, a screen supported on the frame, and an arm support extension extending from the frame; the frame including an upper, generally horizontally oriented upper frame portion, and at least two corner frame members extending; and b) a movable arm portion pivotally connected to the arm support extension; the arm portion including a movable torch support arm segment including a cutting torch support mechanism, and a movable stylus support arm segment including a stylus support mechanism; a first end of the torch support arm segment being extendible into a central area of the frame below the upper frame portion; a first end of the stylus support arm segment being extendible above the upper frame portion and above the torch arm support segment. Also included is a method for cutting a duplicate of a template form.

Abstract: A cutting apparatus comprises a machine bed support (1) having a quarter circle profile as seen from above and carrying a workpiece supporting platform (5). The workpiece may be a steel plate (6). The rear of the apparatus has an upstanding post (2) forming a vertical pivot to which is rigidly connected upper and lower arms (3) and (4) which may thus swing in a horizontal plane. A frame (7) is supported on the arms (3) and (4) by rollers R for free movement towards and away from the post (2). The lower limb of frame (7) carries the workpiece cutting device (16) and the upper limb of this frame caries a template following sensor device (8). The sensor device (8) is arranged to follow the required profile defined by a drawing or template on table (10) and this is effected by control of two drive motors using photo-electric template following means one motor driving a wheel (12) which frictionally engages the template and the other motor controlling the orientation of the wheel (12).

Abstract: A reusable template is disclosed herein for use in cutting pipe and other related applications in conjunction as a guide for an oxygen cutting torch. The template, as described in a preferred embodiment as a pipe template, has one or more contour ends so configured that after the branch pipe is cut it will fit flush against the external surface of a header pipe at the desired angle determined by the configuration of the contour end. The template is made of oxidation resistant material, with an alloy content sufficient to produce refractory oxides when heated by a flame, thus preventing the template from being cut by the oxygen cutting torch. The template is held in place over or on the workpiece or pipe by means well known in the art. The contour end or shape of the template is used as a guide for the nozzle of a standard oxygen cutting torch.

Abstract: A templet for cutting patterns in pipe with a torch includes a tube that is axially split into hemicylindrical segments. The segments are biased together in alignment with a coil spring. The segments are spread apart by squeezing attached handles together. A wide flat face transverse the tube wall at each tube end, defines a pattern. The flat face is formed by the tube wall and a coextensive flange. The tube covers and protects portions of the pipe to be retained and exposes the portion to be cut away. To make a cut, a flat-sided collar near the torch tip is positioned flush against the flat face. The flat face is angled to the tube wall so that a cutting axis of the torch will be oriented at a desired angle to a pipe telescoped within the tube.

Abstract: A semiautomatic weld grinding apparatus for grinding the surface of a weld seam interconnecting two perpendicularly disposed tubular sections. The grinding apparatus is capable of grinding off excess weld from a saddle-type nozzle to shell weldment that follows a circular path through a plurality of planes. Alternatively, the apparatus is adaptable to function as a welding or a cutting apparatus that follows the saddle-shaped path created at the interface of two perpendicularly disposed tubular sections.

Abstract: A flexible guide bar for a cutting torch and the like having magnetic means for engaging the piece to be cut and also having adjustable means for engaging metal pipe. Stiffeners may be utilized to assist the guide bar when used to guide the cut of flat stock and edge keepers may be utilized to assist a variation of the guide bar when it is used with flat stock.

Abstract: The present invention relates to follow-up control means in swinging-arm flame-cutting machines comprising a scanning element which is arranged at outer component arm of the swinging arm carrying the cutting torch, and in coaxial relation to the latter and which is advanced by drive means likewise arranged on the outer component arm to follow automatically the contour of a pattern having the configuration of a part to be cut from a workpiece.

Abstract: An accessory for facilitating the accurate cutting of holes with a cutting torch. A die is attached to the workpiece by legs and presents a die opening which controls the size and shape of the hole. A bridge piece fits against the die and maintains the cutting torch tip perpendicular to the surface of the workpiece as the torch is guided around the edge of the die opening to form the hole.

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 method of welding tabs projecting outwardly from grip straps in a fuel assembly grid to a control rod guide thimble positioned in a cell in the grid including providing a weld guide having openings therein which receive dimples on the strap when the weld guide is placed in a cell adjacent to the cell containing the control rod guide thimble. THe weld guide includes an opening which falls into alignment with a tab so that when a welding gun electrode is placed through the opening and into contact with a tab, the other electrode is automatically centered on its tab thus permitting accurate spot welding of the parts. To make a second spot weld on the same tab but at a point outwardly from the first spot weld, a second weld guide having an opening therein displaced a greater distance from a reference point on the weld guide, is placed in the same cell and the welding process repeated.

Abstract: A worm is rotated while a cutting torch trims the edge of the worm. The torch is mounted on an arm along with a wheel which bears against the thrust surface of the worm. The arm is mounted on one part of a carriage, the carriage moving along a guide rail under the motive influence of the worm. A pattern corresponding to the desired contour of the worm acts as a cam for the part of the carriage which carries the torch.

Abstract: A hand-operated profiling machine includes a cutter-holding head supported on a support which is mounted for movement toward and away from a table. The head is mounted in a cover which is supported on a pair of guide rods extending through linear bearings fixed to a shaft extending through ball bearings mounted on the support, the shaft extending perpendicularly to the table. The head is pivotable about and movable toward and away from the shaft. An adjustable template is supported on the support and guides the movement of a guide pin mounted on the head.