Sewing – Work manipulating – Guides
Patent
1976-02-17
1977-10-25
Callaghan, Thomas F.
Sewing
Work manipulating
Guides
112163, D05B 302, D05B 108
Patent
active
040551300
ABSTRACT:
The present disclosure relates to zig-zag sewing machines including means for controlling the bight stops in order to produce ornamental patterns. In particular, the disclosure relates to electronically controlled sewing machines having storage means for storing stitch information and wherein logic means are used to select and release stitch information in timed relation with the operation of the sewing machine. The disclosure of the invention has particular application in those sewing situations wherein it is desired to use more than one needle in a single needle holder of the needle bar which therefore necessitates a limitation on the magnitude of the jogging or swinging of the needle bar in order to accommodate the multiple needles in the aperture of the needle plate. In accordance with the disclosure of the present invention whenever more than one needle is used in the sewing machine the electronic control of the bight stops is automatically put into effect whenever such multiple needle mode is selected.
REFERENCES:
patent: 3296987 (1967-01-01), Kawaguchi
patent: 3412700 (1968-11-01), Marforio
patent: 3568072 (1971-03-01), Rosener
patent: 3696768 (1972-10-01), Torii
patent: 3872808 (1975-03-01), Wurst
Larsen Robert H.
Minalga Philip F.
Bell Edward L.
Callaghan Thomas F.
Falk Julian
Nerbun Peter
Smith Robert E.
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