Fabric-feed control for sewing machine

Details Fabric-feed control for sewing machine Fabric-feed control for sewing machine

1977-05-03

1978-08-08

Nerbun, Peter

Sewing

Special machines

Darning

112153, 112148, 11212112, D05B 2100

Patent

active

041049772

ABSTRACT:
A sewing station in which lengthy material, e.g. sleeve or trouser-leg fabric workpieces, can be provided with a seam in substantially automated operation. The material to be sewn is advanced from a loading station, where it is initially held by a fixed clamp, to the sewing machine. While the material is advanced past the sewing machine by the fabric transport, it is guided by a moving or trailing clamp which trails along with the material holding it in lightly stretched relation to the sewing machine transport mechanism. The clamps are provided with pneumatic pistons which actuate or perform the clamping functions. The pistons are controlled by switches and valves to alternatingly open and close the clamps as required by the seaming operation. The station provides for a simplified operation requiring monitoring by an operator only for the initial positioning and initial seaming.

REFERENCES:
patent: 3769924 (1973-11-01), Rogers et al.
patent: 4013025 (1977-03-01), Marforio

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