Cutting torch height control apparatus

Details Cutting torch height control apparatus Cutting torch height control apparatus

1979-03-20

1982-12-14

Sheehan, John P.

Metallurgical apparatus

Means for cutting solid metal with heat, e.g., blowpipes

Having torch spacing means

21912402, 21912403, 318637, 318650, 318670, B23K 710

Patent

active

043634680

ABSTRACT:
An apparatus (10) for controlling the height of one or more cutting torches (12) above a workpiece (14). The apparatus (10) senses the actual height of the torch (12) above the workpiece (14) and compares the actual height with a desired reference height. The apparatus (10) moves the torch (12) up or down until the actual height and reference height are substantially equal. The apparatus (10) is operable in a manual mode, a semi-automatic mode or a fully automatic mode allowing an operator to select a desired degree of control during a cutting operation.

REFERENCES:
patent: 2364645 (1944-12-01), Mott et al.
patent: 2534958 (1950-12-01), Deming
patent: 2949391 (1960-08-01), Anderson
patent: 3398342 (1968-08-01), Redman
patent: 3809308 (1974-05-01), Roeder et al.
patent: 3823928 (1974-07-01), Stolin et al.
patent: 3928790 (1975-12-01), Schmall
patent: 4156125 (1979-05-01), Brown
patent: 4170727 (1979-10-01), Wilkins
Coughanowr et al., Process Systems Analysis and Control, McGraw-Hill Book Co., New York, 1965, pp. 116-117.

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