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5888447 |
A metallic pipe may be used as a burning bar if the pipe contains wires. The wires are usually steel but may be combinations of steel wires, aluminum wires, magnesium wires and the like. To use the burning bar one end is heated to at lea...
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5472174 |
An exothermic burning rod includes exothermic fuel members extending axially within an elongate, external tube. The exothermic fuel members include an essentially ferrous inner core provided with an outer aluminum coating. A gas passage ...
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4385941 |
A method for producing a molten puddle on the surface of a metal workpiece to be scarfed consists of igniting a mixture of fuel gas and oxygen. The resultant flame is used for heating a steel wire to a temperature of from 900° to 1450°...
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4351676 |
A method for powder scarfing of metal resides in that combustible gas and oxygen are fed to a zone (9) of treating a metal (10) in order to form a heating flame. Then, flux is delivered by means of a flux-carrier gas, whereupon the forme...
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4337098 |
The present invention relates to a process for cutting out a wall made of metal or metal alloy, by fissuring, comprising the steps of heating one face of the wall to melt the metal locally over a depth limited to a fraction of the thickn...
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4055332 |
A cutting torch arrangement is disclosed, including a thermal bar having a metal burner pipe with rod-like metal elements therein and gas passageways formed between these elements. A shroud/ shield is disposed around the thermal bar, wit...
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4050680 |
A cutting torch arrangement is disclosed, including a thermal bar having a metal burner pipe with rod-like metal elements therein and gas passageways formed between these elements. A shroud/shield is disposed around the thermal bar, with...
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4042225 |
A gas actuated starting rod feed device for use with hand holdable oxygen cutting and/or scarfing torches. The starting rod feed device includes means for gripping and advancing a starting rod. The gripping means is operated in response ...
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4012621 |
In the method of initiating the scarfing process for removing the surface defects of a steel material as the material to be scarfed is moving relative to the movement of the scarfing machine having a scarfing nozzle, the improvement, whi...
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3969154 |
1. A method of inducing rapid failure in a shape that is under stress and is composed of cold rolled steel comprising applying against a surface of said cold rolled steel shape a mixture composed of lithium metal, lithium chloride and po...
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3966503 |
A method for making an instantaneous thermochemical start on the surface of a ferrous metal workpiece, comprising the steps of: (a) contacting a preselected spot on said surface where the reaction is to begin, with the end of a ferrous m...
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3929515 |
A method for cutting overlapping metal plates with gas heat without application of mechanical pressure thereto. This method is characterized by the insertion of active, viscostic and plastic filler material between the overlapping metal ...
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3615898 |
A method of facilitating the torch cutting of heat-resistant alloys whereby additional flame heat is provided by interposing a sheet of titanium between the torch and the alloy.
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3473972 |
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3468726 |
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2873224 |
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2840016 |
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2754234 |
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2711979 |
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2627826 |
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2583068 |
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2583045 |
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2454325 |
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2444900 |
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2438344 |
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2366787 |
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2317936 |
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2309096 |
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2288027 |
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2205890 |
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2181095 |
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0999099 |
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