Sewing – Special machines – Darning
Patent
1982-09-15
1985-02-12
Nerbun, Peter
Sewing
Special machines
Darning
11212115, 112308, 112DIG2, D05B 2100
Patent
active
044984049
ABSTRACT:
Sewing apparatus includes a manipulator for manipulating the workpiece on the sewing table with respect to the sewing head, the manipulator including a first arm rotatably mounted to the main frame about a first vertical axis, a second arm rotatably mounted to the first arm about a second vertical axis, a manipulatable head rotatably mounted to the second arm about a third verticle axis, and a plurality of rotary motors for rotating the first and second arms and the manipulator head about their respective axes. The manipulator head is a suction head, and the table is formed with apertures for selectively applying either positive or negative fluid pressure to its upper face in order to selectively produce either suction for holding the workpiece, or an air cushion for facilitating moving the workpiece by the manipulator. According to a still further feature, the apparatus also includes a workpiece detector continuously monitoring the location of the edge of the workpiece with respect to the sewing head.
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patent: 3448705 (1969-06-01), Scherr et al.
patent: 3474747 (1969-10-01), Noiles
patent: 3497780 (1970-02-01), Leenhouts
patent: 3505966 (1970-04-01), Strothmann
patent: 3531107 (1970-09-01), Rovin et al.
patent: 3810436 (1974-05-01), Marforio
patent: 4419946 (1983-12-01), Fischer
patent: 4425858 (1984-01-01), Hargett
patent: 4434729 (1984-03-01), Davidson
Barish Benjamin J.
Beta Engineering & Development Ltd.
Nerbun Peter
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