US2615654A - Yarn tensioning device - Google Patents

Description

Oct. 28, 1952 T. F. suscss YARN TENSIONING DEVICE Filed April 22, 1950 2 sums-swam 1 A TTORNE YS.

Oct. 28, 1952 T. F. suGes 2,615,554

YARN TENSIONING DEVICE Filed April 22, 195g 2 SHEETS-SHEET 2 INVEN TOR.- ZYmmasJC Si/g gs,

BY (2mm A TTORNEYS.

I Patented Get. 28, 1952 YARN TENSIONING DEVICE Thomas Fpsuggs, Gastonia, N. 0., assignor to Cooker Machine & Foundry Company, Gastonia, N. 0., a corporation of North Carolina Application April 22, 1950, Serial No. 157,510

1 This invention relates'to yarn tensioning de- 'vices,-that is to say, to devices for tensioning individual yarns or threads incident to bein drawnirom supply packages supported in ver- I tical or near vertical position, asrfor example,

in creels associated with beam warpers or the like.

The chief aim'oi my invention is to provide a tensioning device which, in addition to being dicate-(ruby the angled arrows III-III in Fig.

1; and.

Fig. 4 is a broken out view drawn to a smaller scale, showing a portion of a creel equipped with yarn tensioning devices of my invention.

With more specific reference first more especialiy to Figs. 13 of these'illustrations, it will be observed that my improved yarn tensioning device, there comprehensively designated by the numeral 9, comprises a fiathorizontal bracket- .like cast foundation or supporting member ||l which is of elongate irregular configuration in plan. At its narrow or anchorage end, the member ID has an integrally formed upward attachment boss H with anupright inwardweb extension 82, said boss being bored longitudinally as at l3 for connection of the device to a horizontal sustaining rod l4. A set screw I5, threadedly engaged in the boss serves as the means for securing the device in adjusted position along the rod l4. Fixed in the web l2, and extending forwardly therefrom at a slight elevation above the top of the member ID, is a pigtail thread guide with a vertical axis eye; and formed on the wider sector-like portion I! of the member I is a circular pad 18 from which upstands axially, a stud l9 whereon are freely impaled a pair of superposed yarn tensioning disks 2!) and 2| of which the meeting place is on a level with the top of the eye of the pigtail guide IS. A vertically-flexible spring arm 23 is fulcrumed on the fixed post l9 and has an upstanding holder stud 25 at its 4 Claims. (01. 242-150) 2 outer end for a second pair of superposed yarn tensioning disks 26, 21. The stud 25 projects below the arm 23, as at 28 in Fig. 2, so as to be selectively engageable with depressions 29 in the top surface of the member ID radial to the fixed post ill to maintain the'arm 23 against accidental displacement in adjusted positions for a purpose later on explained. Rotation of the lower tension disks 2|, 21 of the respective pairs is resisted by washers 30 and 3| of felt or the like interposed beneath them. Anchored in the member H3, at the distal end thereof beyond the tensioning disks 26, 21, is a second pigtail guide 32 with a horizontal axis eye at the level of the meeting plane of said disks.

Afilxed to the bottom face of the member H) by screws or other fastening elements 33 substantially in coaxial relation to the eye of pigtailguide i6, is a circular plate 35 of comparatively' large area which serves as a battle to prevent ballooning of the yarn as also explained later. As shown, the plate 35 has a central guide aperture 36 which is approached through a radial slot 31'. Overlying the slot 3l at right angles, immediately adjacent to the aperture 35, is a tongue 38 of flat spring metal which is secured at one end to said plate 35 by onset the screws 33, and which reaches to the periphery of said plate with its distal end bent upward slightly, as at 4G, ,to facilitate entry of the yarn therebeneath.

While serviceable in connection with other types of textile machines or apparatus, the yarn tension device of my invention in the form herein illustrated is intended for use more particularly in connection with creels of the type disclosed in U. S. Patent 2,483,160 granted to me on September 27, 1949. A portion of such creel is illustrated in Fig. 4, one of its posts 4| being shown as having secured to it at the top, a horizontal bracket 42 with vertical axis terminal bosses 43 on its oppositely extending arms to receive the upturned ends of the rods M by which the tensioning devices 9 of my present invention are sustained. Disposed at a level below the bracket 42 and in turn fixedly secured to the post 4| of the creel, is a horizontal bracket 45 likewise having oppositely extending but longer extremities 4B. Pivoted, on upstanding studs 41 on the extremities 46 of the bracket 45 are double-armed swivel elements 48 which, at their outer ends, carry holders 49 for the support of frusto-conical yarn packages 50 with the axes of the latter tilted at complementary angles toward the pivot axes of said elements.

.guide aperture 36 in said plate.

It is to be noted that the tension devices 9 are so positioned that the apertures in the baffle plates 35 are in vertical alignment with the swivel centers of the yarn package carrier arms 48, and moreover that the prolongations of the axes of the yarn packages intersect in the apertures of said bafile plates.

The normal path of each yarn Y is as indicated in dot and dash lines in Figs. 1 and 2, i.e., upward from the package 50 and through the apertures of the baffle plate 35 of the corresponding tension device 9, then through the eye of the pigtail guide I6 for direction horizontally about the post 25 and between the disks 26, 21, then about the stud l9 and between the disks 20 and 2|, and finally forward horizontally through the eye of the pigtail guide 32. counterclockwise adjustment of the arm 23 will obviously result in increase in the drag imposed on the yarn, while clockwise adjustment will result in easement of the drag. If desired, the yarn Y may be passed directly to the disks 20, 2| from the pigtail guide I6 with consequent further decrease in the tension imposed. Due to the location of the baflle plate 35 and by virtue of its relatively large area, ballooning of the yarn is effectively minimized and controlled, with avoidance of jerking to prevent smooth running of the yarn through the In threading, the end of the yarn is picked up from the package 50, engaged into the slot of the baffle plate 35 as shown in full lines in Figs. 1 and 2, and passed under the tongue 31 by which latter it is led to the aperture 36 in the plate 35, then entered by a rotary movement into the eye of the pigtail l6, then passed beneath the disks 26, 21 and 20, 2|, and finally engaged by another rotary movement in. the eye of pigtail guide 32. One hand only is thus required in the threading without necessitating release of the yarn end at any time. Accordingly this operation is not only easy, but very quick of accomplishment as will be readily understood.

As an alternative construction, the plate 35 may be made as an integrally cast portion of the foundation member l instead of being separately formed and attached as herein shown by way of example.

Having thus described my invention, I claim:

1. In a yarn tensioning device, a horizontal bracket; fixed vertical and horizontal axis yarn guide eyes at the top of the plate respectively adjacent opposite ends thereof, a horizontally-arranged circular baflle plate portion at the bottom of the bracket in alignment with the vertical axis guide eye having a central thread aperture approached through a radial slot; a pair of superposed tension disks free to rotate about a post upstanding from the bracket at an intermediate point offset laterally from a vertical plane containing the two guide eyes; an arm fulcrumed about the post beneath the disks and reaching into the interval between the guide eyes; a second pair of freely rotatable superposed tension disks carried at the distal end of the arm; and means for holding the arm set in selectively different adjusted positions about said post.

2. A yarn tensioning device according to claim 1, wherein the two yarn guide eyes are of the quick threading pig-tail type.

3. A yarn tensioning device according to claim 1, further including a flexible guard tongue transversely overlying the slot of the baflle plate at the top adjacent the notch central aperture to retain the yarn in said aperture.

4. A yarn tensioning device according to claim 1, wherein the arm is of spring material, and wherein the holding means comprises a pendent projection at the distal end of the arm adapted to engage with indentations circumferentialiy spaced about the post.

THOMAS F. SUGGS.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,450,559 Medeiros Apr. 3, 1923 1,639,927 Clinton Aug. 23, 1927 1,765,590 Javery June 24, 1930 2,185,890 Friday Jan. 2, 1940 2,372,053 Bodansky Mar. 20, 1945 2,393,995 Lambach et a1 Feb. 5, 1946 2,483,160 Suggs Sept. 27, 1949 FOREIGN PATENTS Number Country Date 373,766 Italy Aug. 3, 1939 421,031 Great Britain Dec. 12, 1934

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