Yarn guide control
AssigneeElitex
InventorsPavel Brada, Jaromir Kucera, Otokar Chladek, Gustav Voda, Jindrich Novacek, Jan Kollmann
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Abstract
A yarn guide is controlled by a pair of resiliently biased pneumatically operated pistons arranged cooperatively to alternately exert a directional movement on said yarn guide in opposite directions. One of the pistons engaging with the yarn guide to arrest its movement, in the absence of a pneumatic impulse to either piston.
Claims5
In a multifeed circular knitting machine apparatus for controlling the movement of a yarn guide secured at the end of a lever for pivotal movement between an inoperative and operative position comprising spring means for normal biasing said lever in the operative position, a first pneumatical piston actuable on said lever to selectively move said lever against said bias in response to a pneumatic impulse, a second pneumatic piston having a pawl, a recess formed in the lever at a position corresponding to said pawl when said lever is moved into the inoperative position, and spring means biasing said second piston to cause said pawl to normally engage said lever, said second piston being operable on receipt of a pneumatic impulse to release said pawl and permit said lever to move into the inoperative position.
Dependencies are inferred from the claim text.