Glass manufacturing – Processes – Utilizing parting or lubricating layer
Patent
1996-02-06
1998-01-27
Griffin, Steven P.
Glass manufacturing
Processes
Utilizing parting or lubricating layer
65133, 65170, 65332, 65334, 65356, 83 16, 83169, 83171, 83623, C03B 710, C03B 4002, B26D 708
Patent
active
057117772
ABSTRACT:
A parallel shear apparatus (20) for simultaneously shearing a plurality of streams of molten glass (A, B, C) into gobs comprising opposed carriages (22, 24) which are repetitively moved along rectilinear opposed paths toward and away from one another. Each of the carriages carries a plurality of shear blades (40a, 40b, 40c/42a, 42b, 42c) which cooperate with one another to shear the glass streams into gobs when the carriages are positioned close to one another. The shear blades carried by each of the carriages have internal flow passages (66) to permit the blades to be internally liquid cooled by liquid entering the carriages from inlet lines (52, 56), and the blades carried by one of the carriages (22) are biased by compression springs (82) into contact with the blades carried by the other carriage (24) to prevent excessive contact loads between the blades in their shearing positions. A contact lubricator (88) is provided to lubricate the contact surfaces of the blades carried by one of the carriages (22) by contact with such blades. The shear apparatus is employed in a method for shearing streams of molten glass by moving the carriages toward and away from one another to repetitively bring the free ends of the shear blades into partly overlapping relationship.
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Craig Richard W.
Flynn Robin L.
Myers Ronald T.
Nickey George A.
Slifco John M.
Griffin Steven P.
Owens-Brockway Glass Container Inc.
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