Method and apparatus for changing bushings

Details Method and apparatus for changing bushings Method and apparatus for changing bushings

1985-11-14

1987-03-17

Lindsay, Robert

Glass manufacturing

Processes

Forming product or preform from molten glass

65 2, 65 27, 65172, 65173, C03B 3709

Patent

active

046505083

ABSTRACT:
An apparatus for changing bushings in a glass melting furnace is disclosed. A support attached to the furnace holds the bushings beneath an opening in the forehearth. A replacement bushing is placed in the framework, translated next to the operating bushing, brought to operating thermal condition and then both bushings are translated until the replacement bushing is beneath the opening in forehearth. This eliminates the need to freeze the molten glass within the bushing.

REFERENCES:
patent: 1249868 (1917-12-01), Westbury
patent: 1333903 (1920-03-01), Day
patent: 2075756 (1937-03-01), Barker
patent: 3837823 (1974-09-01), Shealy
patent: 3934998 (1976-01-01), Rowe
patent: 3997309 (1976-12-01), Harris
patent: 4525188 (1985-06-01), Jensen

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