Glass manufacturing – With molten glass charge cutting or scraping means
Patent
1987-04-02
1989-03-21
Kellogg, Arthur
Glass manufacturing
With molten glass charge cutting or scraping means
65163, 65167, 83623, 83694, G03B 712
Patent
active
048139947
ABSTRACT:
This relates to improvements in drives for shears, particularly shears for severing gobs from a glass runner. All of the drives incorporate a drive pinion for reciprocating racks which are secured to slides of the shear. The pinion is rotated first in one direction and then in the opposite direction to cause the blades of the shear to first move together and shear a gob, and then move back to the original position. Suitable reversing motors may be utilized, including an electrical servomotor or suitable hydraulic motor. On the other hand, the drive motor may be of the unidirectional type and an oscillating drive member may be incorporated in the drive system for converting the one-directional drive of the motor to an oscillating or reversing output. In addition, the drive of the pinion may be supplemented by a double-acting air motor which is connected to one of the racks. The air motor or cylinder will provide the primary motor power for the shear, but the velocity thereof will be controlled by the servomotor or like motor which is connected to the pinions through a nonreversing drive.
REFERENCES:
patent: 1642966 (1927-09-01), Miller
patent: 4215611 (1980-08-01), Dahms
patent: 4388100 (1983-06-01), Marroquin
patent: 4699643 (1987-10-01), Kulig
patent: 4728354 (1988-03-01), Vick et al.
Emhart Industries Inc.
Kellogg Arthur
Smith Spencer T.
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