Electrode drive and nozzle system for an automatic air carbon-ar

Details Electrode drive and nozzle system for an automatic air carbon-ar Electrode drive and nozzle system for an automatic air carbon-ar

1983-04-21

1985-07-02

Albritton, C. L.

Electric heating

Metal heating

Cutting or disintegrating

219 70, B23K 916, B23P 106

Patent

active

045270376

ABSTRACT:
An automatic air carbon-arc cutting and gouging torch having a fixed drive wheel for moving an electrode through an insulated housing and through a nozzle adapted to conduct air in a semi-circular pattern along the electrode. Electrical current is supplied to the electrode through a contact shoe supported by and biased to the electrode by a lever arm, the shoe causing the electrode to frictionally engage the drive wheel. Alternately idler rollers can be used in combination with the contact shoe to position the electrode for movement by the drive wheel. Means are included to reposition the electrode in the event of electrode "stub-out".

REFERENCES:
patent: 2433018 (1947-12-01), Ronay
patent: 3131290 (1964-04-01), Stepath
patent: 3317779 (1967-05-01), Henderson
patent: 3659071 (1972-04-01), Henderson
patent: 3735085 (1973-05-01), McCall et al.
patent: 4260867 (1981-04-01), Coughlin et al.
patent: 4300033 (1981-11-01), Scarton et al.
patent: 4317024 (1982-02-01), Moss
patent: 4464555 (1984-08-01), Wallis

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