Abstract: A flame cutting apparatus is disclosed which has been particularly configured for coping the end portion of a structural steel I-beam workpiece. The apparatus includes a roller conveyor for receiving the workpiece, and a frame positioned in association with the conveyor. A first carriage is provided which is movable along the frame in a direction parallel to the longitudinal axis of the workpiece. A pair of second carriages are provided on the first carriage, and are movable therewith, with the second carriages further being movable relative to each other in a horizontal direction transverse to the workpiece. Each of the second carriages is provided with a pair of flame cutting torches, with arrangements provided for further moving the torches vertically with respect to the workpiece. Associated automatic controls operate the apparatus such that movement of the cutting torches along three axes is effected for coping the workpiece.

Abstract: A consumable thermal torch includes inner and outer casings having a first gas flow passage defined therebetween. At least one burning rod is received in the inner casing further defining second gas flow passages. Each of the inner and outer casings is a multi-layer wrapped construction facilitating ease of assembly. The wrapped casings are formed with a powder mix including an effective amount of an exothermic adjuvant. The preferred exothermic adjuvant is magnesium. The powder mix and wrapped casings are each welded or brazed to form integral structures. The magnesium content increases the exothermic reaction temperature of the thermal torch to at least 6000.degree. F.

Abstract: The present invention relates to a process for preparing a finely divided, highly reactive magnesium from magnesium hydride, magnesium anthracene and/or its derivatives or magnesium butadiene and/or its alkyl or phenyl derivatives, which process is characterized in that the respective magnesium-containing compound is thermally decomposed at a pressure from 10.sup.

Abstract: A tool for removing cruciforms from an ice basket having an elongated, generally cylindrical and vertically oriented sidewall, the interior of which is accessible from the upper end thereof. The tool is lowered into the ice basket from the open, upper end thereof in axial alignment with the ice basket. Clamping means disposed at the lower end of the tool are aligned with a cruciform. Remote control means are operable from the exterior of the ice basket to actuate the clamping means for securely clamping the cruciform, for igniting a cutting torch assembly, and for operating a linear actuator to move the cutting torch assembly downwardly in translation, the torches of the cutting torch assembly cutting the cruciform from the ice basket. The cruciform remains clamped, and is withdrawn with the tool from the ice basket.

Abstract: Passified Zinc Soluble Metal-Based Metal particles having a controlled particle size distribution suitable for metallurgy usage without additional particle size reduction and process for making the same. Such metal particles are substantially free of halides, hydrogen, oxygen, nitrogen and carbon and are produced at temperatures considerably below that of arc melting temperatures of Zinc Soluble Metal-Based Metals and alloys based thereon.

Abstract: A device in a cutting torch which comprises a torch body with a valve housing and a nozzle and with a cutting oxygen duct, a heating oxygen duct and a combustion gas duct disposed in the torch, there being disposed in the torch a connection line which contains a throttling member between the heating oxygen duct and the cutting oxygen duct and wherein disposed in the cutting oxygen duct before the connection line is a valve member which permits a flow of heating oxygen to pass through the cutting oxygen duct only in the direction towards the orifice of the nozzle.The connection line between the heating oxygen duct and the cutting oxygen duct comprises at least one cooling oxygen duct (7) disposed in the nozzle which is elaborated with three sealing surfaces towards the torch body.

Abstract: Disclosed is a method for mechanically compositing metal powders to produce composite metal powder material having a substantially homogeneous dispersion of refractory particles dispersed throughout a metallic matrix and being substantially free of oxide scale. Preferably the composite powder has a mean particle size less than about 50 microns and a mean grain size of less than about 0.5 microns which method comprises milling the metal powders with one or more refractory compounds in the presence of a cryogenic material.

Abstract: An improved steel for cold forging for machine structural use, particularly, case hardening steel, contents of Al, N and Nb are selected to satisfy a specific corelation therebetween, and the amounts of O and S are controlled. The steel is resistant to cracking at the cold forging, and growth of austenite crystals to coarse grains during carburizing or carbonitriding is prevented.Disclosed are preferable structure of the steel and rolling conditions to obtain the structure, and conditions for continuous casting of the steel.

Abstract: An apparatus for cutting a steel profile, profile bar, and the like comprises a roller conveyor, at least one driven feed roller, a cutting torch mounted behind the driven feed roller in a positive feed direction, and a burr removal device. A workpiece lying on a roller press is movable in both the positive and the negative feed direction. The cutting torch is movable transverse to the feed direction. The burr removal device comprises a burr-removal shaft with a milling member, which is mounted behind the driven feed roller in the positive feed direction. The burr-removal shaft extends over the entire width of the roller conveyor.

Abstract: Cast titanium alloys and a method of heat treating the alloys in order to obtain fatigue and mechanical properties comparable to wrought titanium is disclosed. The heat treatment is practiced by solution heat treating a cast titanium article above its beta transus, rapidly cooling, stabilizing at a temperature within the alloy's alpha/beta phase range, and finally aging the article to achieve the desired properties.

Abstract: A ferritic perlite steel is used for pipes and tubing to be highly resistant against stress corrosion cracking when exposed to H.sub.2 S, and having following alloying range, all percentages by weight: from 0.3 to 0.45 C, from 1.4 to 1.8 Mn, from 0.2 to 0.5 Si, from 0.2 to 0.5 Cr, from 0.04 to 0.1 V, up to 0.06 Nb, .ltoreq.0.003 S, the remainder being iron whereby the combined Niobium and Vandium content must obey the rule that the sum of the V content plus twice the Nb content must not be not less than 0.1%; tubing is made by hot working followed by cooling in air from the final temperature attained during hot working, so that a texture and grain size in accordance with ASTM finer than 8 obtains; the tubing has strength value of 552 N/mm.sup.2 .ltoreq.0.2% of rupture elongation limit .ltoreq.655 N/mm.sup.2 and a tensile strength exceeding 655 N/mm.sup.2.

Abstract: A cold rolled steel sheet having excellent stretchability, deep drawability, and secondary workability, and a method for producing the same, which comprises the steps of hot rolling an Al-killed steel containing not more than 0.0025%N by weight, not more than 0.010%P by weight, and not more than 0.07% C by weight, and wherein P and N have the relation of P+5N.ltoreq.0.02% by weight, at a temperature of 850.degree. C. or more, cold rolling the hot rolled steel strip at a reduction of not less than 50%, and subjecting the cold rolled steel strip to continuous annealing at a temperature between the recrystallization temperature and the A.sub.3 point.

Abstract: An oxygen-fuel welding and cutting assembly, and medical assembly, with regulators which comprise control valves with flow rate dials and pressure dials, a cabinet which can be mounted to a cart for oxygen and fuel tank cylinders, the cabinet has mounts for rigidly supporting the regulators within the cabinet, the cabinet has passageways permitting hoses from the oxygen and fuel cylinders to extend therethrough and be connected to the regulator inputs, and to allow passage of hoses connected to the regulator outputs so that the hoses can be wrapped around cart hose mounts and then extend through a cabinet passageway to be connected to a torch body releasably mounted within the cabinet, the cabinet has mounts for holding torches and torch tips, the cabinet has a movable door which allows the torch body to be pulled thereout, when the torch body is moved to an operation site the torch body hoses are pulled through their cabinet passageway and out the cabinet door, the cabinet has a screened section permitting v

Abstract: A method is disclosed for introducing a controlled level of oxygen into agglomerated molybdenum plasma spray powder. The method involves forming a relatively uniform mixture of agglomerated powders consisting essentially of molybdenum and one or more oxygen containing compounds of molybdenum wherein said mixture has an oxygen content of greater than about 10% by weight and reducing the mixture at a sufficient temperature for a sufficient time to remove a portion of the oxygen therefrom and form a molybdenum powder having an oxygen content of no greater than about about 10% by weight.

Abstract: A method of refining the microstructure of metals which undergo a phase transformation at high temperatures by diffusing a solute material into the metal at a temperature below the normal transformation temperature. The solute induces the phase transformation and removal of the solute at a temperature near the transformation temperature reverses the transformation. These phase transformations refine the microstructure of the metal so treated. The method is particularly useful to Group IVB metals i.e. Zr, Hf and Ti.

Abstract: An attachment for a cutting torch includes a support member for supporting a cutting head of a cutting torch and a guide member in the form of a travelling wheel assembly for guiding the cutting head at a suitable height for operation. An offset pivot rod is provided for use as a fulcrum or central support and a common mounting frame is provided for releasably mounting. The guide member and the pivot rod. Upon rotating the common mounting member about the pivot rod the cutting head will traverse a circle at the proper height relative to the work piece for cutting a circular plate of metal from a metal sheet.

Abstract: A gun barrel which is either smooth or has lands and grooves wherein the grooves are both wider and deeper at the chamber than at the muzzle. A mandrel for producing the gun barrel. Processes for producing the gun barrel including steps of heating, quenching, and tempering with optional use of chromizing, vacuum, and noble gases.

Abstract: An improved, energy efficient, hot rolling method for direct production of cold formable dual-phase steel is provided. The steel is heated to completely austenitize it and then continuously hot rolled and cooled down into the ferrite-austenite two phase region to a temperature which is just below the effective Ar.sub.3 temperature. The hot rolled steel is then rapidly quenched to provide an alloy containing strong, tough lath martensite (fibers) in a ductile soft ferrite matrix. The method is particularly useful for providing rods in which form the alloy is capable of being drawn into high strength wire or the like in a cold drawing operation without any intermediate annealing or patenting, and has excellent strength, ductility and fatigue characteristics.

Abstract: Disclosed are dispersion strengthened composite metal powders having an average particle size of less than about 50 microns and an average grain size within the particle of about 0.05 to 0.6 microns.

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.