Adjustment mechanism for sewing machine
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 1, 1992
Grant Date -
N/A
app pub date -
Jun 3, 1991
filing date -
Jun 3, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An adjustment mechanism for a button stitching machine includes a shaft rotatably mounted in a support block and having a threaded, forwardly extending portion and a rearwardly extending portion. The threaded forwardly extending portion threadedly engages a bore provided in a rear end of a rear tongue of the button stitching machine. Rotation of the shaft causes the rear tongue to advance and retreat accordingly. A potentiometer-type dial provides an inner scale graduated for indicating fractions of a turn and an outer scale which counts the number of turns.
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