Plastic article or earthenware shaping or treating: apparatus – Including means advancing continuous length work through...
Patent
1982-12-14
1985-09-24
Thurlow, Jeffery
Plastic article or earthenware shaping or treating: apparatus
Including means advancing continuous length work through...
264178R, 264562, 264566, 264568, 425325, 4253261, 425388, B29D 2304, B29F 308
Patent
active
045430519
ABSTRACT:
A vat under vacuum bears in its sidewall a sizing sleeve, the cylindrical downstream portion of which includes annular channels interconnected by distribution channels. Injection ducts leave the bottoms of the annular channels and open out in the inside surface of the sleeve. The interior of the sleeve communicates with the interior of the vat via rows of radial suction ducts. During operation, the injection ducts are supplied with water under pressure which forms a film between the outside of the tubing and the inside surface of the sleeve even when the tubing is pressed against that inside surface owing to the partial vacuum prevailing within the vat.
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Maillefer S.A.
Thurlow Jeffery
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