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7377987 |
A steel cutting system has a cutting torch on a first side of a slab of steel. A pair of oxygen jets is placed on a second side of the slab of steel.
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6824624 |
The invention relates to a method and apparatus for oxygen cutting pieces of steel, in which a cutter member ( 5 ) is positioned above a top face of the piece to be cut, and trimmer and spray members ( 10, 11 ) are positioned beneath the...
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6783605 |
The invention relates to a method and apparatus for oxygen-cutting thick pieces of steel at high speed. In accordance with the invention an oxygen-cutting torch ( 30 ) held at a predetermined height above the piece ( 1 ) to be cut and a ...
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5944915 |
A novel cutting nozzle assembly for a postmixed oxygen-fuel gas torch is disclosed. The nozzle assembly includes a cylindrical shroud which surrounds and extends away from the gas discharge orifices in the gas discharge end of the cuttin...
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5891266 |
A method and system for cutting hub bores in metal railroad wheels is disclosed. The system includes a lead and second torch for cutting the hub bores. In the method, the lead torch is moved to an initial position above the wheel. The le...
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5792281 |
A post-mixed cutting torch selectively operable in a pilot mode and a cutting mode is provided by the present invention. The control body includes a fuel passage and an oxygen passage which is divided into a preheat oxygen supply branch ...
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5683821 |
The workpiece is obtained by cutting a metal product by oxygen cutting. An oxygen cutting jet is sent onto a preheated cutting zone of the product. A peripheral sleeve of additional gas is formed around the oxygen cutting jet so as to se...
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5391237 |
The workpiece is obtained by cutting a metal product by oxygen cutting. An oxygen cutting jet is sent onto a preheated cutting zone of the product. A peripheral sleeve of additional gas is formed around the oxygen cutting jet so as to se...
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4830681 |
An oxygen cutting device comprising two cutting oxygen jets conducted through passageways with a passageway therebetween for a carburizing flame ensuring a reheating at depth of the rough-cut kerf which is effected by the first cutting o...
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4707898 |
A semi-automated beam cutting machine simultaneously cuts with two torches the flanges of the beam in a presettable plane in each of two axis. The web of the beam is cut with a further torch in response to a template, to obtain two rat h...
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4389261 |
A process for cutting metal members 3 by means of jets of gas emitted by nozzles (a 1 , a 2 , a 3 . . . a 63 ) which are disposed at regular spacings on the periphery 2 of the disc 1 which rotates at high speed. Preheating for initiatin...
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4379002 |
In the process of conveying a slab from continuous casting or large ingot casting equipment by means of a conveyance table comprising conveyance rollers, the slab is stopped on the table and raised therefrom and, at the raised position, ...
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3852126 |
A gas cutting method comprising an idle cutting method, the idle cutting nozzle is inclined to have a delay angle with the cutting direction to increase the cutting speed, the idle cutting nozzle is further deflected from the cutting dir...
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2582946 |
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2575736 |
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2547191 |
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2517622 |
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2443710 |
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2345688 |
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2301923 |
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2288026 |
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2266552 |
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2266208 |
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2221788 |
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2210403 |
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2210402 |
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2202130 |
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2184562 |
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2152145 |
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2146266 |
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2110781 |
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1571569 |
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3563812 |
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1142355 |
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0894195 |
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