Air tube structure in a glass container forming machine

Details Air tube structure in a glass container forming machine Air tube structure in a glass container forming machine

1993-03-26

1994-10-25

Woodard, Joye L.

Glass manufacturing

Press molding machine

With means for heating or cooling apparatus

65321, 65362, C03B 938, C03B 1112

Patent

active

053585437

ABSTRACT:
In an individual section machine for producing glass containers from molten glass, a sliding tube-in-a-tube arrangement forms part of an internal cooling air passageway for directing a pressurized air flow to a pressing plunger. A linearly-movable piston comprising a ring-shaped base with an upwardly-projecting rod portion, is supported within a cylinder casing, and the plunger is supported on a projecting end of the rod portion. The piston has a central opening in the bore of the rod portion which merges with a longitudinal elongated thin-walled tubular member. The tubular member is disposed to define an annular space between its outer surface and the internal bore sidewall. A fixed second tubular member projects centrally upwardly from the cylinder casing's base end and into the annular space whereby linear movement of the piston causes the first tubular member to telescopically slide within the fixed second tubular member and maintain an extensible-retractable air tube structure.

REFERENCES:
patent: 3607206 (1971-09-01), Foster

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