Glass gob shearing apparatus and method

Details Glass gob shearing apparatus and method Glass gob shearing apparatus and method

1975-05-22

1976-06-15

Abercrombie, Willie G.

Cutting

Processes

Cutting part way through from opposite sides of work

83171, 83623, 83694, B26D 106, B26D 708

Patent

active

039629392

ABSTRACT:
In a glassmaking process, a pair of reciprocating blades are used to cut a stream of molten glass into discrete charges known as "gobs". The cutting surfaces of the shear blades are maintained in a spaced-apart relationship by pairs of raised portions or rails formed in or on the facing blade surfaces. The raised portions or rails of the blades keep the blades separated a specified distance and thereby extend the wear life of the blades by eliminating friction between the cutting surfaces of the blades. A solid film lubricant is applied to the blades and serves to lubricate both cutting surfaces of the blades, thus the blade surfaces that contact the molten glass stream are lubricated to avoid the possibility of the glass sticking to the shear blades.

REFERENCES:
patent: 3490326 (1970-01-01), McNamara
patent: 3817133 (1974-06-01), Romberg

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