Forming glass articles by using a spin plate
AssigneeCorning Glass Works
InventorChester A. Andrysick
Life of this patent
Estimating the term…
Abstract
A spin plate, rotatable about a central vertical axis, is positioned axially below the discharge orifice of a glass feeder to initially receive a charge of glass thereon, and the spin plate is rotated about said central axis to spin out said charge into a disc-shaped parison and the spin plate is indexed downwardly so as to receive a forming mold thereabove. The spun parison is particularly adapted to forming articles from low viscosity glasses utilizing techniques heretofore not readily available to such glasses including spinning, vacuum forming, blowing, pressing and blanking.
Claims4
A method of forming a disc-shaped parison of molten glass which comprises, positioning a spin plate having a substantially flat upper surface in axial alignment with a discharge orifice, discharging molten glass from said orifice and depositing such glass upon an axial center of the upper surface of said spin plate, and rotating said spin plate about its vertical axial center and uniformly distributing such molten glass radially outwardly across said substantially flat upper surface into a disc-shaped parison of desired thickness centrally of said spin plate.
Dependencies are inferred from the claim text.