Welding-, cutting-, or heating torch
First Claim
1. A welding-, cutting-, or heating-torch in which a gas is used for operation of the torch, comprising a torch head having an outlet nozzle with an outlet end;
- a torch housing rearwardly spaced from said torch head;
connecting means in form of outer sleeve means connecting said torch head with said torch housing and forming gas passage means having a front end communicating with said outlet nozzle and a rear end in said torch housing;
means for feeding as necessary for the operation of the torch into said rear end of said gas passage means so that such gas passes through said gas passage means and leaves the latter through said front end thereof; and
elongated hermetically closed heat transmitting means confined in its entirety within said torch for automatically transporting heat from a heat receiving zone which is adjacent said torch head is shielded from the gas passing through said gas passage means to a heat releasing zone which is rearwardly of said heat receiving zone is impinged by the gas passing through said gas passage means, whereby a region of the torch head which is heated to a high temperature during operation is cooled.
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Abstract
A torch for welding, cutting or heating comprises a torch head having at least one outlet nozzle, a torch housing spaced from the torch head, connecting means connecting the torch head with the torch housing and provided with passages therethrough to be flown through by a cooling medium, and elongated hermetically sealed heat-transmitting means extending through the connecting means for automatically transporting heat from a heat receiving zone adjacent the torch head to a heat releasing zone adjacent the torch housing for cooling the torch head, in which the heat releasing zone is cooled by the cooling medium passing through the aforementioned passages.
25 Citations
19 Claims
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1. A welding-, cutting-, or heating-torch in which a gas is used for operation of the torch, comprising a torch head having an outlet nozzle with an outlet end;
- a torch housing rearwardly spaced from said torch head;
connecting means in form of outer sleeve means connecting said torch head with said torch housing and forming gas passage means having a front end communicating with said outlet nozzle and a rear end in said torch housing;
means for feeding as necessary for the operation of the torch into said rear end of said gas passage means so that such gas passes through said gas passage means and leaves the latter through said front end thereof; and
elongated hermetically closed heat transmitting means confined in its entirety within said torch for automatically transporting heat from a heat receiving zone which is adjacent said torch head is shielded from the gas passing through said gas passage means to a heat releasing zone which is rearwardly of said heat receiving zone is impinged by the gas passing through said gas passage means, whereby a region of the torch head which is heated to a high temperature during operation is cooled. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
- a torch housing rearwardly spaced from said torch head;
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19. A welding-, cutting-, or heating-torch in which a gas is used for the operation of the torch, comprising a torch head having an outlet nozzle with an outlet end;
- a torch housing rearwardly spaced from said torch head;
a central metal tube extending longitudinally through said torch and having a nozzle-shaped front portion;
a second metal tube extending coaxial to said central tube radially spaced therefrom and forming with the latter first gas passage means;
a metallic torch head connecting body rearwardly of said nozzle-shaped front end of said central tube and having a front portion in heat conductive contact with said nozzle-shaped front end and said second tube, said first gas passage means having outlet means extending through said connecting body; and
elongated hermetically closed heat transmitting means having a front heat receiving zone embedded in said connecting body and a heat releasing zone rearwardly of said connecting body for automatically transporting heat from said heat receiving zone to said heat releasing zone;
outer sleeve means connecting said torch head and said torch housing and forming second gas passage means having a front portion communicating with said outlet nozzle and a rear portion surrounding said heat releasing zone of said heat transmitting means; and
means in said torch housing for feeding a gas necessary for the operation of the torch into said first and second gas passage means so that the gas passing through said second gas passage means cools said heat releasing zone, said hermetically closed heat transmitting means together with said second gas passage means forming a primary cooling system and said first gas passage means forming a secondary cooling system, both supplied with gas necessary for operation of the torch and thus also used for cooling a region of the torch which is heated to a high temperature during operation.
- a torch housing rearwardly spaced from said torch head;
Specification