US PATENT SUBCLASS 57 / 60
.~.~ With twisting couple

Current as of: June, 1999
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57 /   HD   TEXTILES: SPINNING, TWISTING, AND TWINING

1 R  DF  APPARATUS AND PROCESSES {45}
59  DF  .~ Delivery twist type {4}
60.~.~ With twisting couple {1}
61  DF  .~.~.~> With stopping or starting

DEFINITION

Classification: 57/60

(under subclass 59) Devices combined with a twisting couple for giving additional twist and winding the finished product.

(1) Note. These are strictly multiple twist devices, but it is to be noted that in subclasses 58.49+ the twisting device is unitary and the one twisting couple inserts the plural twist.

(2) Note. Combinations of receiving twist and delivery twist are included here even though the delivery twist is only for the purpose of taking out the twist of unwinding.

SEE OR SEARCH THIS CLASS, SUBCLASS:

12, for twisting couples combined with covering or wrapping apparatus.

66+, for twisting couples.