Dual exposure hot wire cutter

Details Dual exposure hot wire cutter Dual exposure hot wire cutter

1982-09-28

1984-10-23

Hunter, H. Hampton

Sewing

Elements

Thread cutting, severing or breaking

112290, 112299, D05B 6506

Patent

active

044781636

ABSTRACT:
A cutting assembly allows efficient automatic cutting of synthetic thread, and also allows manual cutting thereof. A guide block has a bottom surface past which cloth is adapted to move in a direction A, and a narrow channel is formed in the block substantially parallel to the direction A. A vacuum cut-thread removal passageway is formed in the block at the channel leading end and in operative communication with the channel, the passageway being elongated in a dimension intersecting the channel. A notch is formed in the block adjacent, but spaced from, the channel leading end and vacuum passageway. A wire of electrically conductive material is mounted so that it extends through the notch and channel and cuts thread moved into contact with it. An integral block having particular passageways formed therein provides a venturi arrangement adjacent the vacuum passageway to provide the vacuum source.

REFERENCES:
patent: 3125052 (1964-03-01), Spivey
patent: 3191562 (1965-06-01), Frankel
patent: 3217680 (1965-11-01), Harris, Jr. et al.
patent: 3934526 (1976-01-01), Damast et al.
patent: 4220105 (1980-09-01), Palacino
patent: 4419950 (1983-12-01), Keeton

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