Apparatus for a tentering chain having tentering clamps with a c

Details Apparatus for a tentering chain having tentering clamps with a c Apparatus for a tentering chain having tentering clamps with a c

1992-07-17

1993-11-30

Crowder, Clifford D.

Textiles: cloth finishing

Expanding device for textile webs

Biaxial expansion

26 93, D06C 300

Patent

active

052653137

ABSTRACT:
In order to achieve a controlled longitudinal shrinkage of a film web, an adjusting mechanism including a threaded spindle with a cross-piece is provided between neighboring clamping bodies along the tentering chain. The cross-piece is equipped with control rollers that are radially arranged around the longitudinal axis of the threaded spindle and spaced from one another by an angular spacing of, for example, 90.degree. between neighboring control rollers. The control rollers intermittently engage a control rail that has operational segments of a multiple leads screw guide track.

REFERENCES:
patent: 4330499 (1982-05-01), von und zu Aufsess et al.
patent: 4637103 (1987-01-01), Hutzenlaub
patent: 4807336 (1989-02-01), Yoshimura et al.
patent: 4890365 (1990-01-01), Langer
patent: 5161674 (1992-11-01), Rutz et al.

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