Furnaces – With fuel treatment means – Preliminary refuse treatment means
Patent
1974-12-23
1976-06-01
Sprague, Kenneth W.
Furnaces
With fuel treatment means
Preliminary refuse treatment means
432224, 432231, F23D 1326
Patent
active
039600939
ABSTRACT:
A portable forge having a burner shield with a combustible gas fitting at the top center thereof and an oxygen fitting in a side portion thereof coupled to an oxidizer ring tube with a plurality of oxidizer orifices disposed in the inner portion thereof for directing oxygen in a downward direction therefrom. An inner burner tube surrounds the gas jet orifice or fitting and terminates at the oxidizer ring tube. Disposed directly beneath the burner tube is a mixing chamber terminating in a venturi flare directly beneath the oxidizer ring tube. The mixing chamber terminates in a bottom portion within a top refractory pan which is spatially disposed over a base refractory pan which holds base slab, which in turn, carries a work piece being heated. The burner shield, together with the top refractory pan and the hardware therein, is hingedly attached to the base refractory pan and spatially disposed through a heat shield and top support member. In a second embodiment, a burner tube and mixing chamber are shortened with the oxidizer ring tube disposed at the top of the burner tube.
REFERENCES:
patent: 1194373 (1916-08-01), Fralick
patent: 2173618 (1939-09-01), Ahlert
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