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US 4,070,976 AGranted
Upper thread take-up levers for sewing machines
OwnerBunsaku Taketomiinventor
Life of this patent
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Abstract
Disclosed is an improved upper thread take-up lever for a two-thread sewing machine. The improvement comprises at least one vertically disposed pulley rotatably supported adjacent to the free end of the lever and a member secured to the free end of the lever for supporting the pulley rotatably in unison with another vertically disposed pulley in the vicinity of a tension disc.
Claims16
In an upper thread take-up lever for a two thread sewing machine, said lever having a free end, said machine having a frame carrying a vertically disposed thread guiding pulley rotatably supported thereon in the vicinity of a tension disc,
- the improvement which comprises:
- upper thread guiding means vertically disposed above said pulley and rotatably supported adjacent to said free end of said lever;
- and
- means secured to said free end of said lever for supporting said guiding means rotatably in unison with said pulley.
1 more element
Dependencies are inferred from the claim text.