Backup structure for a pipe for feeding a molten substance of hi

Baffle arm operating mechanism

Baffle assembly

Baffle mechanism for an I.S. machine

Baffle mechanism for I.S. machine

Baffle mechanism for I.S. machine

Baffle moving and alignment means for the four gob glass forming

Baffle moving mechanism for use in a glassware manufacturing mac

Balanced molding of optical elements

Bank precharge signal generation circuit

Barrier apparatus and method of use for melting and refining gla

Barrier film for hydrogen coloration in glass

Base material of optical fibers and a method for the preparation

Batch charger for glass furnace

Batch melting vessel lid cooling construction

Batching of molten glass in the production of graded index of re

Beading apparatus for making an electron gun assembly having sel

Bearing unit for carrying rollers of a horizontal furnace and a

Belt assisted press bending

Belt for bending a glass sheet, and method and apparatus for...