Abstract: A welding guide has a plate having a first section and a second section that are bent along a bend line to form a right angle. Rollers are attached to the first and second sections and a positioning member having at least one aperture is attached to the second section. A top edge and a bottom edge of the first and second section have notches.

Abstract: A cutting torch guide assembly for cutting beveled openings includes a first rod that is hollow. A first sleeve is positioned around and slidably positionable on the first rod. A pin is coupled to and extends perpendicularly from the first sleeve. The pin is configured to couple to a metal substrate to define an axis of a penetration that is to be cut into the metal substrate. A second rod is positioned in and selectively extensible from the first rod. The first sleeve is positionable to select a diameter of the penetration on an opposing side of the metal substrate. The second rod is positionable relative to the first rod to select a thickness of the metal substrate. A ring coupled to the second rod is configured to insert a nozzle of a cutting torch so that the nozzle is positioned to cut a beveled penetration into the substrate.

Abstract: An apparatus for use with a disrupter to disable explosive ordnance and improvised explosive devices is described. In a preferred embodiment, the apparatus comprises a sleeve adapted to be fit around the barrel of the disrupter, wherein the sleeve has an opening of generally circular cross section and an aperture for holding a positioning rod; and a positioning rod connected to the sleeve through the aperture for positioning the disrupter in relation to the explosive ordnance or improvised explosive device. The use of the sleeve and positioning rod combination permits rapid determination of stand-off for the disrupter and the angle of impact of the charge the disrupter will fire. The device is particularly useful in disabling pipe bombs.

Abstract: A system for performing exothermic operations or oxygen delivery uses a rod and handle configuration to create a flowpath of oxygen. The rod includes cables having stainless steel fibers that burn using the oxygen within a hollow center area. While burning, the rod cuts through material. A sheath covers the covers to contain the gases and prevent unraveling of the cables. The handle attaches to the rod and provides control of the flow of oxygen to the rod. A manifold fixing in place bottles of oxygen connects to the handle and can be fixed to provide different mixtures from different bottles. The rod is disconnected when needed to fix a mask thereto for delivering breathable oxygen to a patient.

Abstract: A fence system capable of serving as a guide rail assembly for a cutting tool is provided. The system comprises a main beam with integrated or removable guide inserts interlocked by mechanical means that provide a spacing system for various handheld plasma torches. The inserts are customizable to fit the profile of various torch bodies and provide a precise preset gap for optimized cutting. The main beam can also incorporate storage of consumable parts for the torch as well as additional guide inserts.

Abstract: A gas torch assembly and its method of use are described for use in high-temperature applications such as a furnace, power generation station, pottery kiln and flame cutting and welding torches, which requires only inexpensive, low environmental impact, low pressure fuels such as propane gas and air; utilizes the initial internal combustion of the fuel gas to subsequently preheat air/oxygen and/or the fuel gas to well above ambient temperature; and dispenses with the need of arc-oxygen or arc-air cutting of metals.

Abstract: A lightweight remote controlled carriage apparatus having a frame means composed of a first frame member and a second frame member interconnected by a transverse frame member having a transverse frame member axis; the transverse frame member having a pivot point intermediate a first transverse frame member end and a second transverse frame member end allowing rotation or pivoting, about the axis, of the first frame member relative to the second frame member. Wheel frame means extending orthogonally from the first frame member and the second frame member toward a surface. The wheel frame means receiving remotely controlled motor driven magnetic wheels. The magnetic wheels having a middle plate having at least one magnet on at least one side received into a recessed pocket; at least one outer plate on each side of the middle plate. The middle plate having a circumference providing a traction means.

Abstract: The invention concerns a welding torch with a contact socket and a feed device. The feed device is arranged to hold a welding rod and guides the welding rod obliquely relative to a bore in the contact socket such that an outer surface of the welding rod abuts a defined inner surface of the bore at least over a partial region of the bore.

Abstract: A supporting guide for an oxyacetylene torch provides a body having spaced legs defining a recess therebetween to carry gas supply pipes of the torch for releasable attachment of the supporting guide to the supply pipes. A body portion distal from the recess pivotally carries a disk carrying a support arm extending spacedly therefrom for pivotal motion relative to the body to support the torch and guide it on a workpiece or a template. The support arm is carried by the disk for adjustable extension and angulation relative to the body to regulate the distance of a torch nozzle from a workpiece and the angulation of the torch nozzle relative to the workpiece.

Abstract: A cutting torch drive attachment which is easily attachable to an existing cutting torch providing a self contained battery powered motorized cutting torch drive attachment facilitating consistent torch speed and tip to work distance resulting in smooth straight line and circular metal cutting with improved torch gas usage efficiency.

Abstract: A double-pivot circle-cutter including a pivot member pivotally mounted on a support arm and having a sliding beam slidably extending therethrough. The pivot member is vertically adjustable, and its axis of pivot extends through the support arm. The sliding beam carries a platform which in turn pivotally supports a holder for a cutting member adjacent one end of the platform. The axes of pivot of the pivot member and of the cutting-member holder are parallel, and the latter shifts with the sliding beam to make the distance between the axes equal to the radius of the desired circular cut.

Abstract: An improvement for cutting torch tips of the type that include at least two orifices at the end of the tip connected to longitudinally extending channels. Two slanted surfaces sandwich a protruding guiding member that is cooperatively inserted inside the kerf being formed by the cutting flame. The guiding member keeps the tip from abruptly moving away from the kerf path and the slanted surfaces providing a smooth surface over which the user applies moderate sliding force for further steadying the cutting operation. In this matter complex cutting paths can be followed. The slanted surfaces can be curved to provide a degree of flexibility on the angle of the tip with respect to the surface of the material area being cut.

Abstract: A wheeled holder is designed to hold and carry a welding torch stably along a chosen welding line. The holder includes adjusting means for varying the mounting position of the torch relative to the wheels. The circumferential edge of each wheel is designed as a knife edge to improve the holder's ability to be steered along a curved line.

Abstract: A guide roller attachment for a cutting torch which consists of a clamp member secured to hex nut of the cutting torch and a pair of elongated legs with knurled wheels rotatably coupled thereto. The legs are adjustably coupled to the clamp member to control distance of the torch tip to a workpiece and stabilize the cutting torch during its push/drag along the work piece when straight and bevel cutting.

Abstract: The invention is for an oxy cutting torch holder having a frame with a pair of vertically adjustible posts with bearing wheels at their lower ends. A nozzle-receiving passageway is disposed in the frame with a novel nozzle retaining device. Provision is made for replacement of a post by a transversely extending arm carrying an extension with a pointed end to enable cutting in a circle.

Abstract: A guide assembly for a torch tip for a hand held cutting torch with the guide assembly being operable to locate the torch tip a preselected distance from a workpiece whereby the tip will be substantially precluded from engaging the heated workpiece surface and with the guide assembly being selectively adjustable to vary the preselected distance and being actuable to guiding and non-guiding conditions.

Abstract: A motorized hand torch with an improved brake mechanism is provided. The brake mechanism includes a brake lever which is manually actuable to either a locked or an unlocked position. The brake lever, in turn, has a cam portion thereon which moves a pivotally mounted leaf spring so as to selectively lock a mounting bracket supporting a drive wheel whereby straight line cutting may be accomplished. A circle cutting attachment is also provided which includes a means for preventing locking the mounting bracket.

Abstract: A shield for a torch tip for a hand held cutting torch with the shield being generally tubular and adapted to receive the tip in clearance relationship and being adjustable both axially and radially relative to the tip to selectively determine the radial spacing between the tip and shield, and the height that the shield holds the tip from a workpiece whereby the tip will be substantially precluded from engaging the heated workpiece surface.

Abstract: A body member has a central aperture and a set screw in an arrangement for mounting on the depending tip of a tool. The body member supports a guide engaging roller in an eccentric relation whereby the roller is arranged to be adjustably rotated such that the surface thereof can be positioned selectively relative to the tip. The roller has a grooved edge for guided engagement on the edge of an upstanding guide. The roller in its eccentric support is arranged for various types of guide functions including roller engagement of a guide, a rolling engagement on a workpiece, or an out-of-the-way position for guided engagement of a support therefor against a guide.

Abstract: A cutting guide for a blowtorch comprises a channel-shaped body member with front, back, and intermediate limbs, and a holder attachment for a blowtorch on its exterior. The back and intermediate limbs of the body member form a female slide member for receipt on a guide rail along which the body member is moved while cutting a metal plate or the like. The front limb is spaced forwardly of the intermediate limb to form a splatter shield protecting the female slide member against molten metal and slag formed while cutting, so as not to impede smooth sliding of the guide along the rail.

Abstract: A hand held, shoulder mounted gun with time delay circuitry means to safely ignite a powdered pyrotechnic material.

Abstract: An apparatus for attachment to a conventional welding torch which provides a support for the welding torch tip which is to be used in conjunction with a template for making smoothly contoured cuts within a workpiece. The apparatus includes a collar which is to be fixedly securable onto the tip of the welding torch. The collar is pivotally and lineally movable in respect to a plate. A fastener assembly is utilized which secures in position the collar onto the tip of the welding torch and also tightens the collar onto the plate. The lower edge of the plate terminates in a smoothly contoured guide flange which is to rest upon and slide on the upper surface of a template. Attached to the plate and extending outwardly past the guide flange is a pin. The pin is to abut against the side edge of the template.

Abstract: The present invention is a guiding attachment for use in combination with a cutting torch which includes a nozzle which has a truncated conical tip portion and a cylindrical portion, an elongated member mechanically coupled to the nozzle and a gas supplying device for supplying gas to the nozzle which is mechanically coupled to the elongated member and a handle which is mechanically coupled to the elongated member. The guiding attachment includes a cylindrical member which has a bore into which the nozzle is placed and a pair of metal axial rods which are mechanically coupled to the cylindrical body. The guiding attachment also includes a pair of metal wheels, each of which is rotatably coupled to one of the metal axial rods and a coupling device which is a wing nut which is threadedly coupled to the cylindrical member and which couples the cylindrical portion of the nozzle of the cutting torch to the cylindrical member.

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: Gas cutting of a plate material such as of stainless steel or stainless-clad steel is efficiently carried out by advancing a cutting torch along a mild steel bead formed on the material by melting thereon mild steel using a welding torch. When the material preheated in advance is burnt by directing a jet of oxygen thereto, the mild steel bead on the material effects to elevate the combustion temperature, thereby allowing refractory slag produced in cutting to be fused and blown off by virtue of the jet of oxygen.

Abstract: An oxy-acetylene torch, having a welding and cutting handpiece wherein a flame nozzle is in communication with a gas mixing chamber and a cutting nozzle is in communication with an oxygen conduit, the cutting nozzle being supported from and displaced from the flame nozzle and so inclined to the central axis of the flame nozzle as to direct the oxygen stream into a flame when issuing from the flame nozzle.

Abstract: A system for using a cutting torch for making accurate curved, straight and beveled cuts. A supporting and guiding device is attached to cutting torches, which may be of various sizes and shapes, and includes an elongated bar having a ring and opposed set screw clamp at one end to receive the torch tip. A member on the elongated bar carries a workpiece engaging knife-edge wheel and supports the lower parallel tube of the torch, this member being removably mounted on and slidable along the bar to desired positions. The height bar above the wheel is adjustable for positioning the burning tip at the correct angle and spacing with respect to the workpiece. The wheel can be positioned with its plane transverse to the bar for making curved or lateral cuts, or parallel to the bar for making longitudinal straight, perpendicular or bevel cuts. A centering pin is slidably positionable on the bar for making long radius cuts.

Abstract: A guide is adapted to be adjustably mounted on the nozzle marginal end portion of a cutting torch. The guide has a convex lower cam surface adapted to slidably engage a straight-edge. The cutting torch may be tilted to a position determined by the operator, and slidably moved along the straight-edge to afford an improved "cut" in the workpiece.

Abstract: A scarfing torch adapted for manual manipulation which includes means disposed in said torch to provide a component of force upon the torch to offset forces upon the torch generated either by the flow of oxygen gas used in the scarfing process or gravity. The offsetting force is provided by the release of a secondary fluid from the torch in the appropriate direction. The secondary fluid may be released to impinge upon the surface of the workpiece being scarfed.

Abstract: A drag guide member for a torch nozzle is disclosed which will guide a burner tip during a metal cutting operation. The drag guide member of this invention is readily replaceable when worn through contact with the kerf. In one embodiment, a gun sight member having shoulders thereon adapted to ride on the edges of the kerf is threadedly received in the lower portion of the burner tip. In an alternative embodiment, a ring member adapted to be threadedly mounted on the circumference of the burner tip is provided. Said ring member mounts spaced gun sights about the circumference thereof so that when one gun sight is worn, the ring may be rotated to position a replacement member.

Abstract: The torch guide comprises a main bar, a pair of work rests dependently mounted on bars which are in turn mounted to the main bar, and a pair of torch clamps which are each dependently mounted on pivots to the main bar. The guide may operate on both flat, and curve work such as pipe.

Abstract: This invention relates to a semi-automatic gas cutting machine which is capable of being operated with one hand freely. More particularly, it relates to a gas cutting machine which enables the steel cutting by: mounting in combination with a controlling apparatus which controls a motor and the rotation thereof, a transmission axis having a first gear at the top and being capable of transmitting the rotation of said motor, a second gear mounted so as to engage with said first gear and rotate around a device head freely, and a driving wheel which is capable of rotation by contacting the outer periphery thereof with said second gear around the device head respectively; and travelling the device head and a cutting nozzle attached to it by the rotation of a driving wheel at the gas cutting.