US1592551A - Bearing for yarn spools and the like - Google Patents

Description

W. BIXBY BEARING FOR YARN SPOOLS AND"THE LIKE July 13 1926.

Filed Oct. 4. 1923 Patented July 13, 1926.

UNITED STATES WALTER BIXBY, OF BOSTON, MASSACHUSETTS, ASSIGNOB TO SHAWMUT ENGINEER- ING- GOMPANY, OF BOSTON, MASSACHUSETTS,

SETTS.

A CORPORATION OF MASSACHU- BEARING FOR YARN SPOOLS AND THE LIKE.

Application filed October 4, 1923. Serial No. 666,617.

This invention deals with the problem of providing means for quickly and conveniently removing the yarn-spools from their bearing supports, while making provision for preventing their accidental removal from the bearing while the yarn-spool is in use. The improvement is particularly intended to meet the requirements of yarnspools used in tube frames for tuft weaving, and especially relates to the intermediate bearings which support the adjacent or abutting ends of two adjacent spool sections mounted in the tube frame.

To this end the invention comprises, generally speaking, the combination with the carrier bar and its yarn-spool, of supporting brackets firmly secured to the carrier bar or support to operatively position the spool, one of said brackets being provided with an axially movable bearing member capable of being moved into and out of operative supporting'bearing engagement with the spool either to retain the spool in working position or to permit its withdrawal from the tube frame when the other becomes exhausted or for any other reason. This and other features characteristic of the invention will be explained in the following specification, and will be defined in the claims hereto annexed.

In the accompanying drawings I have illustrated a simple and convenient construction and arrangement embodying the principles of this invention, in which:

Figure 1 is a side elevation of a portion of a tube frame showing the cooperating bearing brackets forming a support for one section of the spool.

Figure 2 is an end elevation showing the intermediate bearing bracket, I the carrier bar being shown in cross section.

Figure 3 is a detail view in central section showing the adjustable bearing member carried by the intermediate bracket in position for removal of the spool.

Figure 4 is a view similar to Figure 1 with the addition of a tension or spring device to yieldingly maintain the movable bearing member in operative position overlapping the two matched ends of the spool.

Figure 5 is an elevation of the journalsleeve positioning spring.

In the practice of the invention, accord ing to the formillustrated in the drawings, I employ a carrier bar 1, of any suitable or well known construction, provided at each endwith a suspension hanger, one arm 2, of which is shown at the right of Figure l alongside of the end bearing bracket 3, which is perforated to receive the end journal of the yarn spool 7.

In the longer tube frame the spools are usually made in sectionsplaced end to end with an intermediate bearing bracket for supporting the adjacent ends of two adjacent spools.

In the present instance this intermediate bearing bracket comprises a standard having a right angle supporting foot 4, by which it is secured to the top of the carrier bar and preferably has a reenforcing angle plate 5 also secured to the top of the carrier bar and extending upward nearly to the bearing portion of the bracket l.

Spool 7, has the usual heads 8 and 9, and its inner bearing journal 10 is of larger diameter than its outer end journal 10*, and is transversely grooved to receive a tongue or rib projecting from the end'of the bearing journal 10 of the adjacent spool to insure uniform rotation of both spools, in accordance with the usual practice.

Instead of following the usual practice of mounting these spools to have bearing engagement directly with the bearing perforation formed in the upper end of the in termediate bracket 4, I have inserted in said opening a special bearing member 6, of tubular form whose end edges are spun up to form slight stop flanges or ribs 6 to pre vent it from dropping out of its supporting bracket. This tubular bearing member is made short enough to allow endwise play between the two spool heads and is so disposed that it is in normal or operative position to overlap and support both intermatched bearing journals when pushed toward the right, as shown in Figure 1. When pressed toward the left, as shown in Figure 3, it will uncover the journal of the right-hand yarn-spool so as to permit disengagement thereof in order that the spool may Ordinarily the frictional engagement between the slidable or telescopic bearing member 6, in its supporting aperture of the be lifted bodily out of the tube frame.

bracket 4, will suffice to prevent accidental displacement. However, to insure against any possibility of accidental displacement, any suitable form of spring may be used to exerta pressure tending to press or move the bearing member into operative position to sustain both yarn spools. Such a spring may be conveniently made in the form of a dished spring or washer 12, having radial slots to make it yieldable under pressure. Such a spring, inserted in the manner shown in Figure 4, may be placed on the slidable bearing member when .it is inserted in the supporting bracket, and thereafter the edge of the bearing member, being spun up to form a lip or flange, serves to receive the thrust or pressure of said spring. Any number of these intermediate brackets may be used according to the number of spool sections, but for present purposes it sufiices to show the operative relation of one such bracket to the spools supported thereby.

What I claim is:

1. The combination of a carrier bar, adjacent spool sections mounted in brackets carried by said carrier bar, the bracket between said spool sections being provided with a bearing member normally having journal bearing engagement with the adjacent journals of both said spools to permit them to rotate, and being shiftable axially out of bearing engagement with one of said journals to permit removal of the latter, substantially as described.

2. A bearing for a yarn spool embracing in its construction, an apertured bracket adapted to be secured to its support, a slidably tubular bearing member slidably mounted in the aperture of the bracket to overlap the abutting ends of two yarn spooljournals placed end to end, and movable into position to uncover one of said journals to permit removal of one of the spools, substantially as described.

3. .A bearing bracket for the yarn-spool of a tube-frame, embracing a standard adapted to be secured to the carrier-bar of the tube-frame to stand between two adjacent yarn-spools, an axially arranged tubular sleeve open at both ends mounted in said standard to normally afford bearing support for the abutting journals of two aligned yarn-spools, said sleeve being movable axially to uncover one of such journals to permit the removal of one spool while supporting the other, and means for yield ingly pressing the sleeve into normal bearing position for the support of both journals, substantially as described.

4. A bearing bracket for a tube-frame yarn-spool, embracing a standard adapted to be secured to the carrier-bar of a tubeframe, a tubular bearing sleeve of substantially greater axial length than the thickness of said standard supported in said standard to permit said sleeve to move a:-;- ially, said sleeve being provided at its opposite ends with projecting stop members to prevent its removal from the standard, and a spring interposed between one of said step members and the standard to yieldingly retain the sleeve in journal-bearing position while allowing its retraction from such position at will, substantially as described.

In witness whereof, I have subscribed the above specification.

WALTER BIKE Y.

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