Method and apparatus for feeding terry warps in looms

Claim 3

The method of claim 1, wherein the loom takes up the cloth a given amount during each pick of the loom during non-terry intervals of operation thereof, and wherein the step of positively feeding the terry warps in said second increments comprises positively feeding the terry warps during only a single pick of every given series of picks of the loom an amount about equal to that of the cloth taken up during said given series of picks. 3, The method of claim 2, which includes applying a compensating force to the terry warps at an area between the weaving instrumentalities and the point at which the positive feeding of the terry warps is being effected for preventing the occurrence of slack therein during all of the picks of the loom in said series.

Claim 4

The method of claim 1, wherein the loom takes up the cloth a given amount during each of at least those picks of the loom occurring during non-terry intervals of operation thereof; wherein the positive feeding of the terry warps said first and second increments occurs in each instance during only a single pick of every given series of picks incident to the respective terry-cycle and non-terry intervals of operation of the loom, and wherein each second increment is about equal to the amount of cloth taken up during the corresponding given series of picks, and the method further comprising applying a compensating force to the terry warps at an area between the weaving instrumentalities and the point at which the positive feeding of the terry warps is being effected for preventing the occurrence of excessive slack therein during all of the picks of the loom in each given series.

Claim 9

In a terry loom having weaving instrumentalities for weaving cloth from ground warps and terry warps, and control means selectively causing the weaving instrumentalities to perform terry-loop-forming intervals of operation in alternation with performance of non-terry intervals of operation to form respective terry and non-terry areas in the cloth being woven; the improvement comprising means operatively connected to said control means for positively feeding the terry warps forwardly to the weaving instrumentalities in first increments during said terry-loop-forming intervals of operation of the weaving instrumentalities and for positively feeding the terry warps forwardly to the weaving instrumentalities in second increments of substantially less length than said first increments during said non-terry intervals of operation of the weaving instrumentalities.

Claim 10

In a terry loom having weaving instrumentalities for weaving cloth from ground warps and terry warps, and control means selectively causing the weaving instrumentalities to perform terry-loop-forming intervals of operation in alternation with performance of non-terry intervals of operation to form respective terry and non-terry areas in the cloth being woven; the improvement comprising means operatively connected to said control means for positively feeding the terry warps forwardly to the weaving instrumentalities in first increments during said terry-loop-forming intervals of operation of the weaving instrumentalities and for positively feeding the terry warps forwardly to the weaving instrumentalities in second increments of substantially less length than said first increments during said non-terry intervals of operation of the weaving instrumentalities.

Claim 11

A structure according to claim 7, wherein said weaving instrumentalities include a reed, and means responsive to said control means for relatively varying the displacement between the beat-up point of the reed and the fell of the cloth such that at beat-up the reed and cloth occupy relative fast-pick and loose-pick positions in alternation during said terry-loop-forming intervals, and said means operatively connected to said control means being operable throughout operation of the loom to feed the terry warps during only each of certain spaced picks of the loom with the frequency of said spaced picks corresponding to the frequency of those fast-pick beat-up positions of the reed and the fell occurring during the terry-loop-forming intervals.

Claim 12

A structure according to claim 8, wherein said loom includes means for taking up the cloth one pick during each pick of the loom at least during non-terry intervals thereof whereby the cloth is taken up an amount greater than one pick between immediately successive feeds of the terry warps occurring during non-terry intervals, and said means operatively connected to said control means further including means for feeding the terry warps in each said second increment an amount about equal to the amount that the cloth is taken up between the corresponding immediately successive feeds of the terry warps.

Claim 13

A structure according to claim 7, wherein said means for positively feeding the terry warps comprises at last one terry warp feed roll engaging said terry warps, first and second ratchet wheels drivingly connected to said feed roll, rocker means adjacent said ratchet wheels, means for imparting a reciprocatory motion to said rocker means during each of certain spaced picks of the loom, first and second pawls normally engaging the respective first and second ratchet wheels, means mounting said first pawl for reciprocation substantially in concErt with said rocker means, means effective during only non-terry intervals of loom operation for holding said first pawl out of engagement with said first ratchet wheel, lost motion means interconnecting said second pawl and said rocker means, and means limiting the lost motion between said second pawl and said rocker means whereby said first pawl imparts a full stroke to said first ratchet wheel to effect each of said first increments of feed during said terry-loop-forming intervals, and whereby said second pawl transmits only a fractional part of a stroke from said rocker means to said second ratchet wheel to effect each of said second increments of feed during said non-terry intervals.