Recessed top feed for sewing machines
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 15, 1984
Grant Date -
N/A
app pub date -
Oct 5, 1982
filing date -
Oct 5, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A top feed arrangement for cooperation with a lower feed dog of a sewing machine, the lower feed dog cyclically engaging and disengaging the lower surface of material to be sewn in order to move that lower surface along a predetermined path through and past the sewing machine. The top feed arrangement comprises an upper feed dog carried by an arm that is linked to an oscillatory take-off from the primary drive system of the sewing machine. The arm is connected to the device at one end in a pivotal connection and the upper feed dog is carried at the other end of the arm. The arm is resiliently urged in a direction to cause the upper feed dog normally to approach the lower feed dog. A lifter device also responsive to the primary drive system of the sewing machine, periodically moves the upper feed dog in a direction away from the lower feed dog against the resilient force. The linkage from the sewing machine drive to the top feed is housed in a recessed area removed from the work and an uncluttered large work area is provided.
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Cited Art Landscape
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