Force amplifying arrangement for sewing machine pushbutton control
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United States of America Patent
Stats
-
Dec 11, 1984
Grant Date -
N/A
app pub date -
May 29, 1984
filing date -
May 29, 1984
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A sewing machine pushbutton control is provided in a floating extension with a toggle which assists the movement of a plurality of cam followers into operative engagement with buttonhole controlling cams and actuating mechanism for a needle bar and feed regulator.
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Cited Art Landscape
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