Apparatus for heating the marginal zone of glass sheets

Details Apparatus for heating the marginal zone of glass sheets Apparatus for heating the marginal zone of glass sheets

1988-10-04

1990-05-29

Walberg, Teresa J.

Electric heating

Heating devices

Combined with container, enclosure, or support for material...

219411, H05B 306

Patent

active

049298143

ABSTRACT:
An apparatus for heating the marginal zone of glass sheets to which prefabricated spacer strips are to be applied includes a lateral support (1) for the glass sheets and a linear conveyor (2) provided at the lower rim of the support (1), constituted, for example, by a series of conveying rollers (3). Furthermore, two horizontally aligned, elongated heating elements (5, 6) associated with the horizontal marginal zones of the glass sheet are provided. One (5) of the horizontally aligned heating elements (5, 6) is arranged immediately above the linear conveyor (2), and the other one (6) is movable upwards and downwards (arrow 18) along the lateral support (1). Both horizontal heating elements (5, 6) are attached to supports (7, 8) pivotable about horizontal axes (9, 10) that the heating elements (5, 6) can be swung away from their operative position associated with the glass sheet. Finally, an elongated (5), substantially vertically aligned heating device (14) is provided which is arranged beside the vertical rim ( 13) of the lateral support (1) on the discharge side and exhibits two mutually facing heating elements (15, 16).

REFERENCES:
patent: 2680304 (1954-06-01), Herbert
patent: 2999338 (1961-09-01), Richardson
patent: 3402475 (1968-09-01), Johansen

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