Electric heating – Metal heating – Cutting or disintegrating
Patent
1975-12-29
1977-09-06
Reynolds, Bruce A.
Electric heating
Metal heating
Cutting or disintegrating
B23P 108
Patent
active
040469840
ABSTRACT:
The present invention relates to a cutting-off or parting device working by electric sparking, enabling electrically-conductive materials to be cut-off by means of a metallic disc which circulates an electric current, the disc being composed of one or more substances which are electrically conductive during the cutting-off operation and being provided with three or more radial slots formed at the periphery of the disc, the latter being so arranged as to permit the transverse passage of a dielectric cooling liquid from one face of the disc to the other, a first means keeping the disc flat during the cutting operation and a second means being provided for constantly maintaining an equal radius over its entire periphery. Optimum relations between the dimensions of the radial slots and the initial radius of the disc are specified. The disc may be perforated or may be made from sintered or cellular products.
REFERENCES:
patent: 1619627 (1927-03-01), Neiss
patent: 3338808 (1967-08-01), Johnson
patent: 3392255 (1968-07-01), Rye et al.
patent: 3663787 (1972-06-01), Haswell et al.
Reynolds Bruce A.
Vial S.A.R.L.
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