US543080A - John a - Google Patents

Description

(No Model.)

J. A. CLARK. TUPT YARN CARRIER FORLOOMS. No. 543,080.

PatentedJuly 23, 1895.

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ilts-men *ra'res ATENT JOHN A. CLARK, OF WORCESTER, MASSACHUSETTS, ASSIGNOR TO THE CROMPTON LOOM \VORKS, OF SAME PLACE.

TUFT-YARN CARRIER FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 543,080, dated July 23, 1895.

Application filed December 29, 1893- Serial No. 495,075. (No model.)

To all whom it may concern: I

Be it known that I, JOHN A. CLARK, of Worcester, county of Worcester, State of Massachusetts, have invented an Improvement in Tuft-Yarn Carriers for Looms, of which the following description, in connection with the accompanying drawings, is a specification,

like letters on the drawings representing like parts.

This invention has for its object to improve the construction of tuft-yarn carriers employed in looms for Weaving tufted fabrics. In this class of loom the yarn for each row of tufts in the pattern is wound on its own beam or spool, and is led thence through quills or tubes which guide each of the tuft-yarns into its proper space in the-warp to be made into a tuft.

In my experiments in weaving tufted fabrics, .and especially in-carpets wherein the tuft-yarns were fine, I found that the tuftyarns were worn or ohafed by frictionagainst the quills, and that the quills became clogged with the loose fibers, thus preventing free passage of the tuft-yarns therethrough, and

- that difficulty'was experienced with fine fabrics to get the quills into the proper spaces between the warp-threads forming the back or foundation of the carpet. To remedy these evils I have provided the bar carrying the quills with a guard over which the tuft-yarn taken from the beam is drawn 011 its way into the quills, and I have also produced a novel quill and connected it with the frame or yoke constituting the' body of the carrier, so that its upper end is protected by'sai'd guard and consequently the tuft-yarns have free entrance into the open upper ends of the quills.

Figure 1 in f rontelevation, partially broken out, represents a carrier embodying my invention. Fig. 2 is a section looking to the right of the line a. Fig. 3 is a section looking to the right of the line 0;. a blank for one of the quills.

The beam or spool A, the uprights A constituting bearings for the beam-journals, the rigid arms B adapted to enter or engage links of the carrier-chain, (not shown,) and springcatches 13, also co-operating with said chains, are and may be all as common in carpet-looms for weaving tufted fabrics.

Fig. 4 shows The arms B B are united by a wooden crossbar C, which was also commonly the case prior to'my invention; but I have provided the bar on its upper edge with a guard 0, over which the tuft-yarns 15 pass on their way from the beam A through the quills D. This guard is made preferably asa lip formed integral with the cross-bar; but any guard, either integral with the cross-bar or otherwise, will be within the scope of my invention, the upper edge of the said guard being preferably rounded and made smooth. This guard 0 also performs another very important function-viz., that of a shield or cover for the upper ends d of the metallic quills-so that the tuft-yarns cannot scrape over the upperends of the quills where they are attached to said cross-bar.

Prior to my invention I am not aware that the upper ends of the quills have been guarded or shielded as herein provided for.

By letting the yarns 25 pass from the back of the beam over the guard c the yarns are presented in better condition than would be the case if the yarns were taken from the front of the beam.

My improved quill is made from a blank ot' the shape shown in Fig. 4, it having at its upper end a lip 61, the lower end of the blank being of wedge shape, as at d, the overlapping of the edges of the blank to form the rectangular opening or space in the body of the quill being at the front of the quill, the blank being bent on the four dotted lines in Fig. 4c to produce the quill, the outer edges The being united preferably by solder.

wedge-shaped lower ends of the quills enable them to better enter the spaces between the warps than if the lower ends of the quills were not inclined downwardly and backwardly, as in Figs. 2 and 3.

To yet further improve the quills so that their lower ends may be entered between the warps of the back of the fabric, I have pinched together the extreme point of the lower end of the quill, as at (P, so as to form a narrow thin beak, the pinching together of the blank to make the beak also resulting in enabling .the open delivery end of the quill to yield a little to a knot or bunch.

To insure for the tuft-yarns the proper tension I have provided the cross-bar C with a ICO friction device or check composed, as shown, of a spring-plate e, acted upon by an arm e, of a rock-shaft held in a suitable bearing e the opposite end 6 of said rock-shaft being acted upon by a suitable adjusting device 6 (shown as a screw,) so that by turning the screw the rook-shaft may be turned, so that more or less friction may be exerted on the head of the beam by the plate e, as may be required.

The quills will preferably be soldered to a back strip f, and the strips may be secured to the cross-beam by suitable tacks driven through, it may be, the upper ends at of the quills at suitable intervals.

By lapping the material of the quills at the front side the fibers are less liable to be caught and entangled in the lap than when at the rear side, as heretofore made.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a tuft yarn beam carrier, a cross bar having a guard or shield, combined with a series of metallic quills having their upper ends secured to said cross bar and partially covered by said guard, substantially as described.

2. In a tuft yarn beam carrier, a cross bar havinga guard or shield, combined with aseries of metallic quills composed of blanks closed at their front sides, and having their central upper ends partially covered by said guard or shield, substantially as described.

3. The herein described quill composed of a sheet metal blank having central of its upper end a projection d and having its side edges overlapped and provided with a downwardly and backwardly tapering point, substantially as described.

4:- The herein described quill composed of a sheet metal blank having central of its upper end a projection (Z and having its side edges overlapped and provided with a downwardly and backwardly tapering point, the said point being pinched or brought together to form a beak, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOHN A. CLARK. Witnesses:

JUSTIN A. WARE, SAMUEL B. SoHoFIELD.

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