Sewing – Special machines – Darning
Patent
1981-06-04
1983-02-15
Schroeder, Werner H.
Sewing
Special machines
Darning
83925CC, D05B 2100
Patent
active
043734588
ABSTRACT:
A method and machine are provided for controlling the orientation of one or more sewing instrumentalities with respect to a workpiece while also controlling the path of movement of the workpiece. The one or more sewing instrumentalities are preferably rotated about an axis perpendicular to the plane in which the workpiece is moved. The invention furthermore provides for separate and independent control of each sewing instrumentality so as to thereby render one or both needles inoperative at various times during continuous operation of the machine. The invention still further provides for separate manipulation of the thread associated with each respective sewing instrumentality so as to allow for a pullback of this thread. In principle the invention is also applicable to other than sewing machines wherein one or more operative tools may, for example, perform such functions as marking, folding, pinking, or perforating.
REFERENCES:
patent: 295524 (1884-03-01), Clough
patent: 2203804 (1940-06-01), Der Essen
patent: 2854936 (1958-10-01), Nicolay
patent: 2868152 (1959-01-01), Benink et al.
patent: 3450076 (1969-06-01), Bender
patent: 3589222 (1971-06-01), Sederberg
patent: 3677207 (1972-07-01), Iwase
patent: 4090281 (1978-05-01), Hautau
patent: 4178862 (1979-12-01), Bianchi et al.
Dorosz Adolph S.
Kirwan Patrick N.
Szydlek Nicholas P.
Falik Andrew M.
Schroeder Werner H.
USM Corporation
White William F.
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