Equipment for curving glass sheets

Details Equipment for curving glass sheets Equipment for curving glass sheets

1983-02-07

1986-05-06

Kellogg, Arthur

Glass manufacturing

Glassworking or preform by or with reheating means

Planar sheet preform

65106, 65287, C03B 23033

Patent

active

045869464

ABSTRACT:
Straight advance bars in the shaping region are moved plumb downward between the upper advance position and the lower shaping position for the purpose of curving glass sheets heated to the softening point; a pressing means is deposited in time-relation to this motion on the top side of the glass sheet and together with the advance bars is displaced downwardly; when in the shaping position, the glass sheet rests on stationary forming bars curving plumb downwardly and of which the shape is fitted to the desired curvature of the glass sheet. The shaping region is followed by a tempering zone wherein the curved glass sheets are cooled by gas-blowing without their surfaces being affected thereby.

REFERENCES:
patent: 2298709 (1942-10-01), Long
patent: 3701644 (1972-10-01), Frank
patent: 3856499 (1974-12-01), Frank
patent: 3905794 (1975-09-01), Revells et al.
patent: 4139359 (1979-02-01), Johnson et al.
patent: 4218232 (1980-08-01), Wilhelm
patent: 4252552 (1981-02-01), Frank
German Publication No. 2621902.

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