Automatic loader for sewing machines

Details Automatic loader for sewing machines Automatic loader for sewing machines

1982-09-30

1984-12-04

Hunter, H. Hampton

Sewing

Elements

Frames

11212112, 11212115, D05B 2100

Patent

active

044857543

ABSTRACT:
A system for loading a workpiece onto a carriage for traverse relative to a pattern-producing instrumentality comprising a bottom plate positioned on the carriage, a top plate, a picker movable relative to the carriage from a loading position remote from the carriage to a clamping position adjacent the carriage, electromagnets on the picker for releasably holding the top plate thereon for movement therewith on the one hand to lift the top plate from the bottom plate to said loading position and on the other hand to lower the top plate to said clamping position, positioning pins on the picker for positioning and holding the workpiece on the top plate in a predetermined position thereon during movement of the top plate from the loading position to and from the clamping position, said electromagnet being operative to release the top plate at the clamping position, holes in the top plate and pins on the bottom plate interengageable when the top and bottom plates are brought into engagement at the clamping position to align the plates and means at the clamping position for clamping the plates to each other with the workpiece therebetween.

REFERENCES:
patent: 3034458 (1962-05-01), Bennison
patent: 3769924 (1973-11-01), Rogers et al.
patent: 3814038 (1974-06-01), Dorosz et al.
patent: 3977337 (1976-08-01), Yanikoski
patent: 4031835 (1977-06-01), Gilbride et al.
patent: 4171672 (1979-10-01), Dorosz et al.

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