Glass manufacturing – Molten glass dispensing means – Discharge orifice below melt level
Patent
1976-05-07
1978-06-13
Lindsay, Jr., Robert L.
Glass manufacturing
Molten glass dispensing means
Discharge orifice below melt level
65360, 65361, 65DIG10, 249125, C03B 1102
Patent
active
040946606
ABSTRACT:
Stemmed glassware is produced by an apparatus in which the stem is formed separately and is subsequently joined to the cup at the final phase of the blowing operation of the cup glass. In the apparatus a first rotatable platen having cup molds is provided for blowing of the cups and a second rotatable platen having stem molds is provided for forming the stems. A drop of glass for producing the stems is dropped through a very short distance of about 20 to 40 mm. to prevent excessive cooling of the glass drop and to assit in centering the glass drop in longitudinally divided stem molds. A ring centers the mold halves of the stem molds and a surface on the ring molds a part of the stem base. The second platen rotates the stem molds through a pressing station at which the glass drop is pressed to form the stem to a transfer station at which a transfer means transfers the finished stems from the second rotatable platen and attaches the stems to the cups on the first rotatable platen.
REFERENCES:
patent: 2054597 (1936-09-01), Gathmann
patent: 2987853 (1961-06-01), Bartlett
patent: 3472308 (1969-10-01), Lauth
patent: 3955954 (1976-05-01), Ilk
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