Glass manufacturing – Molten glass dispensing means – Discharge orifice below melt level
Patent
1994-12-08
1997-09-09
Czaja, Donald E.
Glass manufacturing
Molten glass dispensing means
Discharge orifice below melt level
65328, 65330, C03B 7084
Patent
active
056651384
ABSTRACT:
A spout bowl assembly for a glass forming machine which forms containers from discrete gobs formed from individual streams of molten glass discharged from the spout bowl assembly comprising a spout bowl for receiving molten glass including a horizontal tube seating surface having a discharge hole defined therein, a tube for controlling the flow of received molten glass into the discharge opening. The tube has a cylindrical outer wall and a flat, horizontal bottom surface located vertically above the tube seating surface and vertically locatable between a first position in engagement with the tube seating surface and an elevated position a selected vertical distance above the tube seating surface. The spout bowl additionally includes an annular flow passage extending upwardly from the tube seating surface a selected vertical distance. The annular flow passage and the bottom portion of the tube wall extending the selected distance from the bottom of the tube being selectively configured relative to one another so that during at least a portion of the displacement of the tube from the engaged position to the upper position will change the effective flow area between the tube and the annular flow passage.
REFERENCES:
patent: 1763968 (1930-06-01), Howard
patent: 2969614 (1961-01-01), Stewart
patent: 4385916 (1983-05-01), Jochem et al.
Czaja Donald E.
Emhart Glass Machinery Investments Inc.
Padgett Calvin
Smith Spencer T.
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