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US 4,070,174 AGranted
Glassware forming machine of the I.S. type with in-line mold motion
AssigneeEmhart Industries, Inc.
InventorsHermann Nebelung, Edward Charles Christopher
Life of this patent
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AssigneeEmhart Industries, Inc.
InventorsHermann Nebelung, Edward Charles Christopher
Estimating the term…
An individual section of a Hartford I.S. type glassware forming machine is modified to provide for in-line, or parallel motion, of the split mold halves at both the blank and blow stations. Vertically extending rock shafts move the blank and blow mold holder structures on fixed ways, through toggle links similar to those in a conventional I.S. machine, but the space formerly occupied by the hinge pin at the blow side is made available for the mold structure because the ways are oriented parallel to and slightly below the neck ring hub mechanism. This design provides for an increased mold closing force at the blank side and simplifies the mold holder structure itself whereby the molds can be continually cooled from an internal chamber in the mold holder which is supplied with cooling air through a vertical interface between the movable mold holder structure and the fixed machine frame.
In a glassware forming machine of the type having several side-by-side sections with components operable in timed relationship to one another, each such section including a blank and blow mold station and wherein at least one such station includes generally cylindrical split mold segments individually mounted on movable mold holder means, the improvement comprising chambers defined by each of said mold holder means, means for providing cooling air to said chambers, each of said mold holder means including vertically spaced mold holder arms, middle chamber defining mold holder structure mounted between said arms, said mold holder structure having an inner wall defining nozzle openings which are oriented generally tangential to the cylindrical outside surface of said mold segments, and thereby create a circulatory flow of cooling air around the cylindrical split mold segments.
Dependencies are inferred from the claim text.