Apparatus for producing foamed plastic type cork lines

Details Apparatus for producing foamed plastic type cork lines Apparatus for producing foamed plastic type cork lines

1979-01-12

1981-02-10

Anderson, Philip

Plastic article or earthenware shaping or treating: apparatus

Distinct means to feed, support or manipulate preform stock...

And means to apply stress to preform and uniting in stressed...

9 8R, 264 469, 264251, 2643287, 264DIG83, 425116, 425121, 425572, 425588, 425817R, B29D 2700

Patent

active

042498724

ABSTRACT:
A process for producing cork lines which comprises holding a leader or leaders with a pair of metal molds having at the junctional surfaces thereof one or more cavities for forming a float or floats and one or more furrows formed so as to pass through said cavity or cavities for holding said leader or leaders, injecting a molten synthetic resin mixed with a foaming agent into said cavity or cavities to effect molding and foaming of said resin, cooling said metal molds and taking out a float or floats integrally fixed to said leader or leaders from said metal molds. An apparatus for producing cork lines which comprises an injection molding machine having a pair of metal molds with a cavity or cavities to form a float or floats and with furrows formed so as to pass through said cavity or cavities for holding a leader or leaders on the junctional surfaces of said metal molds, a device for maintaining said leader or leaders in stretched state between said metal molds and a device for intermittently conveying said leader or leaders in stretched state for a given distance in the longitudinal direction. A cork line thus produced can be used in various fields of industry, especially for fisheries.

REFERENCES:
patent: 2465656 (1949-03-01), Morin
patent: 2744289 (1956-05-01), Wanders
patent: 2920354 (1960-01-01), Zumbrunnen
patent: 3268636 (1966-08-01), Angell
patent: 3879780 (1975-04-01), Williams
patent: 4000532 (1977-01-01), Nielsen
patent: 4009237 (1977-02-01), Kimura et al.

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