Hardening furnace for sheets of glass and the like

Glass manufacturing – Product cooling means – With preceding reheater

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Details

65118, 65356, 432122, 432148, 432209, 432246, C03B 2700, C03B 3500, F27B 924

Patent

active

053021789

ABSTRACT:
The invention relates to a hardening furnace, in particular for sheets of glass (2) and the like. In the furnace, the glass sheets (2) are sustained and transported by a conveyor plane (1) of the roller type above and beneath which plane an upper radiating surface (3) and a lower radiating surface (4) are arranged. The upper radiating surface (3) is composed of a plurality of longitudinal strips (31) arranged side-by-side and parallel to the movement direction of the plane (1), while the lower radiating surface (4) is constituted by a plurality of transversal strips (41) arranged transversally to the said movement direction. Each of the strips (31 and 41) is separated from the contiguous strips and represents the lower and upper walls of chambers (32 and 42) separated one from the other. In each said chamber (32 and 42) there is a device which confers regulatable thermal energy, for example, a radiating tube (15).

REFERENCES:
patent: 1841060 (1932-01-01), Russell
patent: 2151983 (1939-03-01), Merrill
patent: 2220582 (1940-11-01), Ruckstahl
patent: 2875994 (1959-03-01), Mann
patent: 2949869 (1960-08-01), Leeuwrik
patent: 4850860 (1989-07-01), Albonetti
patent: 5022911 (1991-06-01), Balestra

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