Textiles: fiber preparation – Working – Drafting
Patent
1994-07-12
1995-03-28
Calvert, John J.
Textiles: fiber preparation
Working
Drafting
19150, 19159R, 19159A, 19243, 356386, 250561, D01H 572, D01H 574, G01N 2101, G01B 1100
Patent
active
054004764
ABSTRACT:
The present invention provides a drafting apparatus and method having a plurality of pairs of rollers which pairs are each driven in the same rotational direction and have silver contact points oriented along a common straight line. Sliver is fed to the primary rollers through a trumpet guide connected to a strain gage to determine the size of incoming silver and adjust the draft ratio accordingly to equalize the output silver weight. A silver presence and position detecting device operative on a reflected signal is provided adjacent the output of silver, which sends a signal through a computer to adjust the speed of the silver take up apparatus.
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Calvert John J.
Myrick-White, Inc.
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