US2829677A - Jerk in preventer - Google Patents

Description

p i 3, 1958 3., c. BAGGOTT 2,829,677

I JERK IN PREVENTER File d May a, 1955 46 INVENTOR 2 ATTORNEY United States Patent *Ofiice 2,829,677 Patented Apr. 8, 1958 JERK IN PREVENTER Bubber Conroy Baggott, West Columbia, S. C.

Application May 6,1955, Serial No. 506,414

1 Claim. (Cl. 139260) This invention relates to the textile industry and more particularly to machinery for weaving fabrics in which the shuttles are automatically replenished and means are provided to prevent the loose ends of thread from being drawn into the fabric.

Heretofore, various type of equipment have been used in connection with weaving to assure a fine quality fabric so that all of the fabric produced may be sold at a premium price. However, difiiculty has been experienced in disposing of the loose ends of weft thread which result from the exhaustion of the weft thread on the bobbin of the shuttle. These loose ends frequently are drawn into the fabric by a movement of the shuttle after the shuttle had been refilled with a new bobbin. Although some effort has been made to overcome this problem, and various devices have been used, these devices have not proven satisfactory because the loose ends of the weft thread would not be adequately retained by such devices for a sufiicient length of time to prevent such loose ends from being drawn into the fabric.

An object of the present invention is to overcome the defects of the prior art and to provide a device which can be applied to existing looms with a minimum of effort to prevent loose ends of thread from being drawn into the fabric being woven.

A further object is to provide a loom with a means to prevent jerked in threads of filling material in fabric being woven.

Another object of the invention is to provide an attachment for shuttle feelers with means to engage and retain a thread, draw the thread out of the path of the shuttle and maintain such thread out of the way.

A further object is to provide a structure which will engage, retain and withdraw a thread out of the path of a shuttle.

Other objects and advantages of the invention will be apparent from the following description taken in conjunction with the accompanying drawings wherein:

Fig. 1 is a fragmentary perspective of a portion of a loom showing a shuttle box, a shuttle feeler with the loose end retaining attachment applied thereto;

Fig. 2, an enlarged plan view of a shuttle feeler with the attachment applied thereto and showing a fragment of the body portion of the feeler;

Fig. 3, a fragmentary section taken transversely to the direction of movement of the shuttle showing the relation of the brush of the attachment with respect to the feeler tip and the shuttle;

Fig. 4, a fragmentary perspective of a different shuttle feeler body having a straight shank and showing another form of the loose end retaining attachment applied thereto;

Fig. 5, an alternate form of shuttle feeler supporting bracket for use with the feeler shown in Fig. 3; and

Fig. 6, an enlarged view of the brush of the attachment formed of carding cloth.

Referring more particularly to the drawing, a portion of a breast beam of a loom supports a magazine 11 Gil having reserve bobbins for filling a shuttle 12 which is shown housed in a shuttle box 13, such shuttle being thrown by suitable means (not shown) through the shed formed by the warp threads 14 of the fabric 15, the shuttle carrying the bobbins of weft threads in the usual manner. Upon exhaustion of the weft thread in the bobbin of the shuttle, the shuttle is returned to its box 13 by a throwing device on the other side of the loom. A feeler having a supporting body portion 16 pivotally mounted on a stud 17 fixed to a feeler supporting bracket 18 which in turn is adjustably mounted on the breast beam 10 by means of bolts 19 or the like received in elongated slots 20 on the base portion of the feeler is adjustable for proper cooperation with the shuttle 12. The feeler body portion 16 has secured to its outer end a feeler tip portion 21 which is secured to an upstanding lug 22 of the feeler body portion by means of a bolt 23 passing through a lug 24 of the feeler tip portion 21 and the lug 22 of the feeler body supporting portion 16. An L-shaped bracket having a supporting arm 25 with a twist 26 therein has an aperture formed in its end 27 and is secured to the lugs 22 and 24 by means of bolt 23 thereby securely maintaining the L shaped bracket in position on the feeler. The other arm 28 of the L-shaped bracket has a wire brush 29 affixed thereto, such wire brush being formed of conventional carding cloth with the individual teeth 30 extending upwardly and forwardly of the loom toward the knee 31 of the L-shaped bracket.

The shuttle box 13 is provided with a cut-out 32 which receives the brush 29 and other arm 28 of the L-shaped bracket with the teeth of the brush 29 extending above the lower 32A surface of the shuttle box to engage a loose end of thread 33 as shown in Fig. l, the teeth 31) serving as a detent to permit the brush 29 to pass under each loose end of thread 33 and drawing such loose ends of thread 33 with the brush 29 upon the forward or clockwise motion of the feeler body 16 and tip 21 after the shuttle has been refilled with a new bobbin whereby the shuttle feeler and brush are moving out of the path of the shuttle and weaving may continue until the thread on the bobbin is exhausted.

The thread end 33 is held securely by the brush 29 because of the large area of contact, the direction of the teeth and the tendency of the teeth to retain the thread similar to the way a wire hair brush retains loose hair thereon. The portion of the loose end of thread 33 adjacent the fabric 15 is drawn into a thread cutter 34 which severs the loose end and such loose end may be disposed of in any manner.

The shuttle feeler is operated in a well known manner by means similar to that shown in the patent to Draper et :11, 2,317,744, and includes a transverse shaft 35 which is responsive to the exhaustion of the filling thread in the shuttle and upon such exhaustion suitable mechanism rocks such shaft in a clockwise direction while an arm 36 fixed on the shaft moves a pivot 37 carrying a forked lever 38 which engages a pin 39 fixed on the body portion 16 of the shuttle feeler. The lever 38 is resiliently held in operative position by means of a spring 40 secured to a fixed part of the machine and to an extension of the lever 38, such lever 38 having a limited clockwise motion because of engagement with a projecting stop 41. The spring 40 serves as a safety de vice to prevent breakage in the event that the shuttle 12 is not in its proper position when the tip portion 21 of the feeler is moved to the position shown in Fig. 1, and if the feeler cannot move to its operative position the bobbin cannot be changed.

Referring to Figure 3, a slightly difierent shape shuttle feeler body portion 42 is provided with a hollow hub 43 for mounting upon a stud or the like 17 (Fig. 1)

gen er? 2% while a pin 44 on the body portion is adapted to cooperate with the forked lever 38. Another form of feeler supporting bracket is shown in Fig. 5 and includes a body portion 45 provided with elongated openings 46 for cooperation with fastening means similar to bolts 19 V (Fig. 1) for attachment to the breast beam 10 of a loom and one leg 47 of the bracket is provided with an aperture 48 for receiving a bolt or stud like 17 about which the feeler body 42 may oscillate with its hub 43 coopcrating with such stud.

Referring to Fig. 4, a different form of feeler supporting body 49 is provided with a straight shank 50 which is secured to a cooperating straight shank 51 of the tip portion 52 of the shuttle feeler such shanks being secured together by means of a bolt 53 which also secures upwardly extending lug 54 fixed on one arm 55 of an L-shaped bracket, the other arm 56 of such bracket having a brush 57 formed of card clothing or the like fixed thereto by any suitable means such as bolts, rivets, staples or the like. One form of brush which has been successfully used includes a backing of canvas 58 with Wire teeth fixed thereto, such wire teeth extending upwardly and forwardly toward the knee 59 of the L-shaped bracket. The brush 57 has been shown as being formed of card clothing which is a well known item of manufacture in carding wool or other fibers.

It will be apparent that applicant has provided a new and useful attachment for a loom to prevent the loose ends of filling thread from being drawn back into the cloth, thereby avoiding any danger of imperfection in the finished cloth. The invention is useful on all types of natural and synthetic fabrics and the direction of slope .4 of the teeth has been found to be especially useful since the loose ends of thread may easily pass over the brush in one direction but such loose ends are prevented from passing over in the other direction and, therefore, the improvement meets a long standing need.

It will be obvious to those skilled in the art that various changes may be made in the invention Without departing from the spirit and scope thereof and therefore the invention is not limited by that which is illustrated in the drawing and described in the specification, but only as indicated in the accompanying claim.

What is claimed is:

For use with a shuttle feeler having a feeler tip portion and a supporting body portion, an attachment comprising an L-shaped bracket, means to attach one arm of the L-shaped bracket to the connection between the shuttle feeler tip portion and the body portion thereof, uninterrupted carding cloth having wire teeth and mounted on the other arm of said L-shaped bracket with the wire teeth thereof extending upwardly and toward the first arm whereby the attachment will be caused to pass under a thread end and draw such thread end out of the path of the shuttle to prevent such thread end from rendering the cloth defective.

References Cited in the file of this patent UNITED STATES PATENTS 1,019,265 Lussier Mar. 5, 1912 1,350,613 Lacey Aug. 24, 1920 2,141,062 Drolet Dec. 20, 1938

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