Sewing – Special machines – Tube forming
Patent
1991-09-06
1992-11-17
Schroeder, Werner H.
Sewing
Special machines
Tube forming
11212114, 1122622, D05B 300
Patent
active
051633760
ABSTRACT:
A tubular seaming system for stitching workpieces into tubular shapes. The tubular seaming system comprises a sewing head which is pivotally mounted on a support in operative reltionship with a first sewing station and a second sewing station. The first and second sewing stations are angularly displaced at separate points on an arc a predetermined arc length apart. The tubular seaming system comprises a linear motion assembly which is coupled to the sewing head and the support for linearly driving the sewing head into and out of operative relationship with either the first or second workpiece support. The first and second workpiece supports each comprise clamping structure which is capable of clamping overlapping edges of the workpieces so that a master controller can energize the linear motion assembly to drive the sewing head into an operative relationship with either the first or second sewing station so that the workpieces located at the first or second sewing station may be sewn into a tubular shape. The tubular seaming system advantageously permits an operator to sew a plurality of tubular workpieces by loading and clamping one workpiece at one sewing station while another workpiece is being sewn at another sewing station.
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Lewis Paul C.
MIM Industries, Inc.
Schroeder Werner H.
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