Downdraft exhaust cutting table

Details Downdraft exhaust cutting table Downdraft exhaust cutting table

1999-02-09

2000-12-26

Kastler, Scott

Metallurgical apparatus

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

With waste entrapping fluid

266 48, B23K 708

Patent

active

061654108

ABSTRACT:
A downdraft exhaust cutting table comprising an elongated cutting table having a cutting torch positioned thereover and which is movable along the length thereof to cut material positioned on the cutting table. An elongated exhaust duct is positioned beneath the cutting table and runs parallel to the length of the cutting table. The exhaust duct has a plurality of horizontally spaced-apart exhaust openings formed therein which close by a movable damper. In one embodiment, successive dampers are opened as a slag collection bucket moves along the length of the cutting table below the cutting torch. In a second embodiment, a plurality of ventilation zones are created by pivotal gates extending laterally outwardly from the exhaust duct and which are pivotally movable to permit slagger to pass therethrough.

REFERENCES:
patent: 3701514 (1972-10-01), Walters et al.
patent: 3850086 (1974-11-01), Walters et al.
patent: 4058299 (1977-11-01), Lindkvist
patent: 4441934 (1984-04-01), Kawakami
patent: 5435525 (1995-07-01), Roy et al.
Anderson Semi-Automatic Water Tables advertisement, Undated.

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