Sewing – Special machines – Tube forming
Patent
1988-11-08
1990-11-06
Nerbun, Peter
Sewing
Special machines
Tube forming
11212126, 112153, 112306, D05B 3506, D05B 3510, D05B 2300
Patent
active
049676741
ABSTRACT:
A sewing machine for the controlled sewing on of a tape from a tape supply onto a tubular edge region of an elastic workpiece thus forming a band, which is provided with an additional feed dog in front of the usual feed dog in the region of the needle plate. The additional feed dog is driven by a stepping motor transversely with respect to the workpiece feed direction and is used to guide and align the workpiece. Sensors control the alignment movement of the workpiece.
REFERENCES:
patent: 2539845 (1951-01-01), Kohout
patent: 4226199 (1980-10-01), Adams
patent: 4467734 (1984-08-01), Rohr
patent: 4635575 (1987-01-01), Schips
patent: 4714036 (1987-12-01), Raisin et al.
patent: 4744319 (1988-05-01), Rohr
Norz Wolfgang
Pordzik Horst
Rohr Gunter
Nerbun Peter
Sprunger Powell L.
Union Special Corporation
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