Glass manufacturing – With fluid support for article or preform – Including preform width maintaining or stretching mean
Patent
1980-06-02
1981-11-17
Fisher, Richard V.
Glass manufacturing
With fluid support for article or preform
Including preform width maintaining or stretching mean
65201, 65356, C03B 1806
Patent
active
043009387
ABSTRACT:
Apparatus for engaging the marginal edge portion of a ribbon of molten glass is mounted to the exterior sidewall of a float chamber below the sidewall opening and above the floor level. The vertical arcuate movement of the elongated barrel is controlled by a pair of screw jack assemblies symmetrically positioned on opposite sides of the longitudinal centerline of the barrel, themselves controlled alternatively by a motor or manual driving force. The motor may be back-driven by the manual control to provide both remote and manual fine tune capabilities. The elongated barrel includes an outer tubular member and an inner rotatable tubular drive member which is supported therein by a heat resistant toroidal bushing near its insertable end and by a precision bearing near its drive end.
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patent: 4255180 (1981-03-01), Wolfe
Fisher Richard V.
Lepiane Donald Carl
Patch Lee
PPG Industries Inc.
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