C - Chemistry – Metallurgy – 03 – B
Patent
C - Chemistry, Metallurgy
03
B
49/76.1
C03B 9/36 (2006.01)
Patent
CA 1060657
ABSTRACT OF THE DISCLOSURE A blowhead assembly for association with a multi- part glassware mold having parts adapted to engage each other to define a mold cavity and to engage a glass parison below its finish and thus to support the parison within the cavity. The assembly comprises: a cylinder supported above the mold; a piston reciprocable in the cylinder; a blowhead connected to the piston and including conduit means adapted to be closely associated with the parison finish and to introduce a gas under pressure to the interior thereof when the piston is moved downwardly; a second piston supported by said blowhead for re- ciprocation upwardly and downwardly relative thereto; a pair of tongs movable generally horizontally into and out of engage- ment with said parison beneath its upper edge and above the mold parts; and linkage elements connected between the second piston and the pair of tongs respectively to engage and dis- engage the tongs with the parison responsive to movement of the second piston.
296092
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