US1818526A - Mechanism for evening and tensioning yarn - Google Patents

Description

Aug. 11, 1931. F. BAKER MECHANISM FOR EVENING AND TENSIONING YARN File d Jan. 2 $heets-Sheet 1 Aug. 11, 1931, F. BA ER 1,318,526

MECHANISM FOR EVENING AND TENSIONING YARN Filed Jan. 14, 1930 2 Sheets-Shea}. 2

- .Jl J 12 Patented Aug. 11, 1931 UNITED STATES FRED BAKER, or FITCHIBURG, MASsAoHUSETTS, ASSIGNOR To -FIT'GHBURG WEAVING COMIANY, or FITGI-IBURG, MASSACHUSETTS, A CORPORATION or MASSACHUSETTS PATENT OFFICE MECHANISM FOR EVENING AND TENSIONING- YARN Application filed January 14, 1930. Serial No. 420,771.

' This invention relates to mechanism for unwinding yarn from spools 1n a creel and for delivering the yarn to a beamer or quiller or other similar machine.

One object of my inventlon 1s to provide Fig. 2 is a plan view thereof;

Fig. 3 is a. rear elevatlon of the reed;

Fig. 4 is an enlarged side elevatlon of one form of tensioning mechanism, looking in the direction of the arrow 4 in Fig. 2; and

Fig. 5 is a sectional view illustratmg a second form of tensioning mechanism, taken along the line 5-5 in Fig. 2.

Referring to the drawlngs, I have shown a V-shaped yarn creel in whlch a large number of spools S are mounted 1n a plurality of separate and laterally offset vertical series, as indicated in Figs. 1 and 2. The strands of yarn Y from the spools S are drawn past vertical guide-rods 11 to an evening reed at 20.

The reed is mounted in front of the creel 10 and in the'path ofthe yarn strands Y as they are drawn forward from the spools S to the first guide-roll 22 of the evening and tensioning mechanism. The reed 20 may be held in desired posltlon 1n any convenient manner as by braces 24.

The details of construction of the reed are best shown in Fig. 3 where the reed is disclosed as having end frame members 25 and top and bottom frame members 26 and 27. Dents are secured in the top and bottom frame members 26 and 27 and are disposed in two separate sets, one at each Fig. 1 is a side elevation of my improved evening and tenslonlng mechanlsm;

side of the longitudinal center of the reed. The dents 30 in each set are mounted in parallel relation and are inclined outwardly and downwardly with respect to the longitudinal center of the reed.

The length and angle of inclination of the dents 30 is such that the yarn strands Y from a particular vertical series of spools S will engage a particular inclined reed dent 30 at vertically spaced points in its height and will thus be directed to the guide-roll 22 in such manner that the yarn Strands are laid in closely parallel and orderly relation thereon, with no yarn strands superposed on each other.

The yarn from the bottom spool of one, series is also positioned by its reed dent so rolls 40, 41 and 42 and under a tension roll 43. The yarn strands Y are then drawn around a guide-roll and pass to a yarn beam 52 in a beaming mechanism 53, said yarn 'beam being positively rotated in any convenient or desired manner.

Tension may be applied to the roll 43 by a friction band 55 (Fig. 4) having one end fixed at 56 to the frame 58 and having the other end secured to a lever 59 on which is mounted a weight W. The tension on'the yarn may be adjusted by shifting the weight W' along the lever 59. Where additional yarn tension is required, the guide- rolls 41 and 42 may be employed as additional tension rolls, and tension may be applied thereto as indicated in Fig. 5.

A friction band 60 passes overthe guideroll 42 and is tensioned by a Weight 61. A second friction band 62 passes over the guide-roll 41 and is tensioned by a weight 63. Furthermore, the band 62 may be displaced from its direct path by engaging the roll 43, to which a certain amount of friction is then applied.

All three of the rolls 41, 42 and 43 are thus revolved by the yarn against applied friction and the tension on the yarn is thus substantially increased. The friction mechanism shown in Fig. 4 may be applied at one end of the roll 43, as indicated in Fig. 2,

but the mechanism shown in Fig. 5 is pref erably applied at the middle of the friction rolls, as also indicated in Fig. 2.

It will be understood that both friction mechanisms can be used at the same time if so desired, or that either mechanism may be rendered inoperative while the other mechanism is in use. Ordinarily, the mechanism shown in Fig. 5, with or without the additional mechanism of Fig. 4, is used when the yarn is wound on a beam while the mechanism shown in Fig. 4% provides a lighter friction when the yarn is wound on bobbins or quills.

By the use of my improved mechanism, the yarn is delivered to the guide-rolls in evenly spaced parallel relation and the yarn is delivered to the beams or other winding mechanism under an even and satisfactory tension.

The particular type of machine to which the yarn is delivered after being evened and tensioned is immaterial, and the yarn may be beamed, quilled, reeled, wound on spools or bobbins, or otherwise disposed of as desired. The beaming mechanism shown at the right in Fig. l is illustrative only. 7

Having thus described my invention and the advantages thereof, I do not wish to be limited to the details herein disclosed, otherwise than as set forth in the claims, but what I claim is 1. In an evening and tensioning mechanism, a yarn creel, an evening reed having sets of oppositely inclined parallel dents, a guide roll, and means to draw the yarn strand from the creel through said reed and into engagement with said guide roll.

2. In an evening and tensioning mechanism, a yarn creel having spools arranged in different vertical series, an evening reed having sets of oppositely inclined parallel dents, a guide roll, a tensioning roll, and means to draw the yarn strands from the creel'through said reed and past said guide and tensioning rolls, said yarn strands being laid on said rolls in closely parallel relation. 7

3. In an evening and tensioning mechanism, a V-shaped yarn creel havingspools arranged in diiferent vertical series in the two arms of said creel, a guide roll, an even ing reed mounted between said creel and said guide roll and having two sets of parallel dents, the dents of each set being inclined downwardly and outwardly from the longitudinal center of said reed, yarn tensioning rolls, and means to draw the yarn strands from said spools through said reed and past said guide and tensioning rolls,

said yarn strands being laid in closely,

parallel relation on said rolls.

l. In an evening mechanism, a reed having two sets of parallel dents, and all of the dents of both sets being inclined outwardly and downwardly with respect to the longitudinal center of said reed.

affixed my signature.

FRED BAKER.

izs

Images