Looper drive for a chain stitch sewing machine
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United States of America Patent
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Jul 30, 1996
Grant Date -
N/A
app pub date -
Dec 9, 1994
filing date -
Dec 18, 1993
priority date (Note) -
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Abstract
A looper drive for a chain stitch sewing machine that includes a flexible connection that includes an intermediate guide rod that extends between a crank arm and the looper shaft. The intermediate guide rod is mounted to pivot on the crank arm and is constructed to allow a receptacle that is carried by the looper shaft to swivel or oscillate relative thereto. The intermediate guide rod carries a ball which extends into a cylindrical-shaped opening formed in the receptacle.
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