Glass manufacturing – Glassworking or preform by or with reheating means – Envelope tipping off type
Patent
1980-12-24
1982-05-11
Fisher, Richard V.
Glass manufacturing
Glassworking or preform by or with reheating means
Envelope tipping off type
53 79, 65272, 65284, C03B 2313, C03B 2318
Patent
active
043291660
ABSTRACT:
An automatic tipping-off apparatus for hermetically sealing the exhaust tubulation of a dosed and otherwise processed arc tube for a high-intensity-dicharge device. The apparatus for use with an arc tube fabricating machine including a rotatable turret having a plurality of arc tube holding members mounted about the peripheral portion thereof. The turret is operational to move the arc tube holding members in a sequential stop-and-go fashion to and from a plurality of operating stations located in close proximity to the turret. The tipping-off apparatus maintains the arc tube in a vertical orientation and utilizes spring-loaded jaws to retain the arc tube while a burner moves into position about the exhaust tubulation. A timing means controls the movement of the jaws and burner to provide a controlled draw of the tubulation to provide a uniform thickness for the tip portion of the finished arc tube and to effect a fire polishing thereof, the apparatus being designed to be compatible with a high-speed arc tube fabricating machine.
REFERENCES:
patent: 2197527 (1940-04-01), Madden
patent: 2295034 (1942-09-01), Geiger et al.
patent: 2403073 (1946-07-01), Geiger et al.
patent: 2496303 (1950-02-01), Morse et al.
patent: 2604732 (1952-07-01), Bocast
patent: 2764857 (1956-10-01), Schaefer
patent: 2983078 (1961-05-01), Mistler et al.
patent: 3188778 (1965-06-01), Wiener et al.
Fisher Richard V.
Lombard R. S.
Westinghouse Electric Corp.
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