High lift sewing machine

Details High lift sewing machine High lift sewing machine

1992-08-19

1994-05-10

Falik, Andrew M.

Sewing

Stitch forming

Feeding work material

112320, 112313, D05B 2704

Patent

active

053098544

ABSTRACT:
The invention comprises improvements to sewing machines for increasing the throat clearance of the machine. The improvements relate to 1) modifications to mechanical components of the machine to increase the throw and upper travel limits of the presser foot, upper feeding foot, needle and spreader, 2) an adjustment for allowing the speed of the upper walking foot to be variable relative to the speed of the lower walking foot, and 3) an improved biasing spring for biasing the presser foot downward.

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