Apparatus for processing continuously-fed plastics material

Details Apparatus for processing continuously-fed plastics material Apparatus for processing continuously-fed plastics material

1976-08-12

1978-01-17

Spicer, Jr., Robert L.

Plastic article or earthenware shaping or treating: apparatus

Combined

4253241, 4253871, B29C 1704

Patent

active

040689980

ABSTRACT:
Apparatus for processing continuously-fed plastics material in strip form comprises a cyclically operated working tool for example for welding and/or shearing the material. During operation of the tool, the material is stopped adjacent the working zone of the tool and a material storage loop is formed by the continuously incoming material. Subsequent to operation of the tool, the material is drawn from the loop at a higher speed than the infeed speed until the loop has been fully taken up and the material is stretched.

REFERENCES:
patent: 2036313 (1936-04-01), Zimmermann et al.
patent: 2909990 (1959-10-01), Judisch
patent: 2928124 (1960-03-01), Hugger
patent: 2952033 (1960-09-01), Goodwin
patent: 3395200 (1968-07-01), Mader, Jr. et al.
patent: 3465384 (1969-09-01), Barchi et al.
patent: 3594870 (1971-07-01), Schippers et al.
patent: 3632252 (1972-01-01), Amberg et al.

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