Weaving machine with correction of the distortion of the weft

Details Weaving machine with correction of the distortion of the weft Weaving machine with correction of the distortion of the weft

2006-09-12

2006-09-12

Calvert, John J (Department: 3765)

Textiles: weaving

Fabric manipulation

Take-ups

C139S304000

Reexamination Certificate

active

07104286

ABSTRACT:
A weaving machine includes two temples whose axis is parallel to the weft threads and which are located at the lateral edges of the cloth, a cylindrical cloth-deflecting bar on which the cloth presses around an arc of contact before winding around a haul-off roll on which one or more backup rolls press. The clothdeflecting bar has a central cylindrical portion which connects coaxially on either side with two terminal portions next to the areas where the temples are installed, the terminal portions having a cross section which varies in shape proceeding from their ends adjacent to the central portion towards the free ends, causing a variation in the tension transmitted to the corresponding areas of the cloth by the hauloff roll, such that it varies from a minimum value at the ends of the terminal portions adjacent to the central portion to a maximum value at their free ends.

REFERENCES:
patent: 5365 (1847-11-01), Newton
patent: 2998030 (1961-08-01), Koppelman et al.
patent: 3331402 (1967-07-01), Kathriner et al.
patent: 3871419 (1975-03-01), Pfarrwaller
patent: 5649569 (1997-07-01), De Jager et al.
patent: 2004/0154146 (2004-08-01), Pruitt, Jr.
patent: 419 006 (1966-08-01), None
patent: 1 440 292 (1966-08-01), None

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