Metallurgical apparatus – Means for cutting solid metal with heat – e.g. – blowpipes – With means for cutting tubular workpiece
Patent
1981-04-30
1983-01-18
Stallard, W.
Metallurgical apparatus
Means for cutting solid metal with heat, e.g., blowpipes
With means for cutting tubular workpiece
266 56, B23K 704
Patent
active
043688764
ABSTRACT:
A self-propelling bevel fusion-cutting machine for beveling pipes has a machine main body which holds a fusion-cutter, such as a burner, for effecting the bevel fusion-cutting of the end face of a pipe, traveling guide rollers which roll on the pipe end face, and outer roller which rolls circumferentially on the outer peripheral surface of the pipe, and an inner roller which rolls circumferentially on the inner peripheral surface of the pipe. The machine main body is movable along the pipe end face by means of these rollers. The outer or inner roller is removably pressed against the peripheral surface of the pipe and this roller or the other roller is connected to a drive source mounted on the machine main body so as to be thereby driven for rotation. This rotatably driven roller has a substantial width and the diameter of its portion located nearer to the pipe end face is greater than that of its portion located remote therefrom.
REFERENCES:
patent: 3501872 (1970-03-01), Mighton
patent: 3572669 (1971-03-01), Brand
Koei Machine Co., Ltd.
Stallard W.
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