Sewing – Method of sewing
Patent
1994-03-17
1996-06-18
Crowder, C. D.
Sewing
Method of sewing
11247508, 112314, D05B 2704
Patent
active
055267610
ABSTRACT:
A method for forming a partial mattress sack which prevents radial bunching includes feeding first and second panels having different edge lengths at different rates through a sewing machine to form the partial mattress sack. An apparatus for sewing the partial mattress sack includes a mechanism for driving upper and lower walking feet at varying rates and a mechanism for driving the upper walking foot at the same speed as a second lower walking foot.
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Kirby John J.
Mulcahey Charles E.
Porter Michael R.
Crowder C. D.
Lewis Paul C.
Porter Sewing Machines, Inc.
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