Sewing – Stitch forming – Feeding work material
Patent
1979-03-22
1980-01-15
Hunter, H. Hampton
Sewing
Stitch forming
Feeding work material
112317, D05B 2722
Patent
active
041833147
ABSTRACT:
A feed regulator means having both manual stitch length control and pattern cam control of the work feeding mechanism of a sewing machine. A feed regulator crank secured to a feed regulator shaft is the driven link of a four bar linkage system. A manually operable camming device is operably engaged with the four bar linkage for stitch length selection and for simultaneously establishing the proportionate amount of motion transmitted from a pattern cam, which is also operably engaged with the four bar linkage, to said feed regulator shaft. A proportional link is in operable engagement with said four bar linkage such that the stitch length selection of the camming device may be altered without effecting angular movement of said feed regulator crank when a portion of the pattern cam is being tracked which dictates a zero stitch length. The operator control device for stitch length selection, when depressed, will immediately reverse the direction of feed and will maintain a stitch length equal to the stitch length setting of the camming device. The reversal of feed is independent of and overrides the operation of said pattern cam.
REFERENCES:
patent: 3527183 (1970-09-01), Szostak et al.
patent: 3834334 (1974-09-01), Adams et al.
Bell Edward L.
Ebs William V.
Hunter H. Hampton
Smith Robert E.
The Singer Company
LandOfFree
Feed control device for use in a sewing machine does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Feed control device for use in a sewing machine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Feed control device for use in a sewing machine will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1023701