Sewing – Special machines – Darning
Patent
1985-02-22
1986-01-14
Hunter, H. Hampton
Sewing
Special machines
Darning
112311, D05B 2100
Patent
active
045639604
ABSTRACT:
A sewing machine with a drive for a work clamp comprises two slides movable relative to each other, one carrying the work clamp and the other carrying two tail wheels and an endless belt trained thereabout. Two stepping motors which can selectively be run in the same or in opposite directions are engaged each with a respective one of the belt strands, so that with the motors running in opposite directions, the two slides move in the lengthwise direction, while with a run in the same directions, only the slide directly carrying the work clamp is moved, namely transversely. In another embodiment, the slide directly carrying the work clamp is non-rotatably connected to one of the tail wheels.
REFERENCES:
patent: 4002129 (1977-01-01), Kraatz
patent: 4114545 (1978-09-01), Manabe et al.
patent: 4422393 (1983-12-01), Johnson et al.
patent: 4461227 (1984-07-01), Abrams et al.
Hunter H. Hampton
Pfaff Industriemaschinen GmbH
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