US 4,055,969 A · Method and apparatus for producing terry cloth toweling on a warp knitting machine

Abstract

A displacing means is used to move at least one guide bar by at least one needle space in order to remove the loops on a terry cloth towel material such as knitted on a warp knitting machine. The displacing device basically comprises a transfer means for driving a second pattern gear wheel from a conventional first set of gear wheels, a cam follower arrangement operatively associated with the second set of pattern chains; a clutch means actuated by the cam follower mechanism, another cam actuated by the clutch and a cam follower and linkage mechanism associated with the clutch cam for moving the guide bar in the direction of its normal motion by at least one additional needle space. The transfer means comprises first and second coaxially mounted gears which are driven by an idler gear mounted near the periphery of the circumference of the first set of pattern chain wheel. In this manner a considerable reduction of speed is obtained between the first set of pattern cam wheels and the second set of pattern cam wheels. The clutch mechanism is spring-loaded and includes a Z-shaped lever which will engage an internal tab in response to release of the clutch by a pawl mechanism. The method and apparatus of the present invention makes it possible to knit towels having transverse strings which are useful both decoratively and for defining the area in which the cloth is cut into individual towels with pattern chains considerably shorter than those used in the prior art and also allows those towels to be knitted without altering the basic thread consumption rate.

Claims31

Dependent claims

An apparatus for producing terry cloth toweling on a warp knitting machine comprising:

a plurality of needles;
a first and a second rotatable pattern chain means;
a guide bar means including a plurality of guide bars for knitting on said needles, said guide bar means being responsive to the motion of said first pattern chain means;
a transfer means for transferring some of the rotational motion of said first pattern chain means to said second pattern chain means, said transfer means comprising a speed varying transmission means, said speed varying transmission means including:
a shaft on which said first pattern chain means is mounted;
a first gear means coaxially mounted on said shaft;
a second gear means also coaxially mounted on said shaft;
and,
an idler gear means attached to said first pattern chain means and adapted to engage with the teeth of said first and second gear means;
an actuating means responsive to said second pattern chain means;
a clutch means responsive to said actuating means;
a cam means operatively connected to said clutch means;
and,
a guide bar moving means responsive to said cam means for moving one of said guide bars in response to the movement of said cam means.

11 more elements

Dependencies are inferred from the claim text.

Method and apparatus for producing terry cloth toweling on a warp knitting machine

Life of this patent

Method and apparatus for producing terry cloth toweling on a warp knitting machine

Life of this patent

Abstract

Claims31