US1113286A - Yarn-spinning apparatus. - Google Patents

Description

A. AVERY. YARN SPINNING APPARATUS.

APPLICATION FILED JUNE 10, 1912.

Patented Oct. 13, 1914.

THE NORRIS PETERS CO.. PHOTO-LITHQ. WASHINGTON. D. C

UNITED STATES PATENT-OFFICE.

AMARIAI-I AVERY, or MANCHESTER, NEW HAMPSHIRE.

YARN-SPINNIN G APPARATUS.

To all whom it may concern: I

Be it known that I, AMARIAH AVERY, a citizen of the United States, and resident of. Manchester, county of Hillsboro,-State of New Hampshire, have invented an Improvement in Yarn-Spinning Apparatus, of which the following description, in connection with the accompanying drawing, is a specification, like characters on the drawing representing like parts.

a This invention relates to apparatus for.

spinning yarn, and ithas for its particular object the production of novel, simple and efl ective means to prevent grooving or scoring of the roll surfaces, especially when the roll is covered with leather or. similar material. a

In apparatus of the general character to which my invention relates it is well known that the yarn is traversed back and forth as it passes through the rolls, in order that the wear. shall be distributed as evenly as possible over'the roll surfaces. Even with this traverse, however, the surface of a leather covered roll is very apt to be grooved at each end of the traverse, at the points where the traverse is reversed, such grooving resulting in the production of uneven and faulty yarn. .To overcome this mechanism has been devised to vary the stroke of the reciprocating traverse-bar, so that the re.- versing points of the traverse on the rolls shall fall in irregular paths, but so far as I am aware all such devices are quite complicated in construction and to that extent they are objectionable.

In myv present invention I have eliminated any complication of the traverse mechanism,

and I effect the reciprocation of the traversebar with a constant stroke, but by means of a novel construction of the yarn-guide I make use of the rise and fall of the yarn as it leaves the spool or other source of supply.

The guide is provided with an elongated and upwardly extended diagonal slot through which the yarn passes on its way to the rolls, and the travel of the yarn up and down .the slot, in conjunction with the lateral traverse of the guide, causes the reversing points of the yarn to lie in irregular paths on the roll surface. Thus the wear is evenly distributed and the scoring or grooving hereinbefore referred to is eliminated effectually.

Specification of Letters Patent.

The various novel features of my invention will be fully described in the subjoined specification and particularly pointed out in the following claims.

Figure 1 is a side elevation of a sufficient portion of a spinning apparatus to be understood, with my present invention embodied therein; Fig. 2 is a front elevation of a portion of the traverse bar, the device for reciprocating it laterally, and several of the yarn-guides mounted on the bar; Fig. 3 is an enlarged front elevation of one of the guides with a portion of the yarn mass on a spool behind it, to show the relative positions of the spool and the guide slot for the yarn; Fig. 4 is a portion of the surface of the leather-covered front drawing roll, with the varying positions of the traverses indicated by transverse lines.

iteferring to Fig.1, the upper and lower back rolls 1, 2, intermediate or carrier rolls 3, and front drawing rolls 4, 5, are of well known construction, the upper front roll 4 being covered with leather or other similar material, as at 6. The yarn 7 passes to the rolls from a yarn supply, such as a spool 8',

mounted to rotate on an upright support 9 on a creel-frame or the like, indicated at 10. Back of the rolls is located the traverse bar 11, of usual construction, and'laterally reciprocated in 'any usual manner; herein I have shown said bar reciprocated by an ec centric 12 cooperating withrolls 18 on the traverse-bar, said eccentric being revolved slowly by the shaft 14 having'an attached worm gear 15 driven by a worm gear 16, Fig. 1, on the lower back-roll 2. This particular mechanism is well known in the art, and forms no novel part of this invention, and any other mechanism can'be used instead thereof to effect the lateral reciprocation of the traverse-bar. In accordance with my invention I attach to the said bar 11 a series of yarn-guides, one for each yarn as it is led from a spool, the yarn-guide being shown as a rigid, flat metal plate 17 of greater length than width, and provided with an elongated central slot '18, open at its upper end for the ready entranceof the yarn.

Each guide has at its lower end a foot 19 v Patented Oct. 13, 1914.

Application filed .Tune 10, 1912. v Serial No. 702,647. I

provided with transverse lips or ledges 20,

Fig. 1, the shank of the bolt passing through an elongated transverse slot 23 in the foot, this slot permitting any necessary lateral adjustment of a guide on the bar, as will be apparent.

As shown in Figs. 2 and 3 the body or slotted part of the guide is set diagonally with relation to the foot, so that the several guide slots 18, while in parallelism, Fig. 2, are diagonal with relation to the path of movement of the traverse-bar 11. It will be apparent that if the guide slot were at right angles to the traverse-bar the rise and fall of the yarn in the slot would have no effect on the traverse of the yarn on the rolls, as every traverse would reverse at points directly in line with the reversing points. of preceding and following traverses. By making the slots diagonal, however, the reversing points of the traverses are varied, depending upon the position of the yarn in the slot of the guide. That is, as the yarn unwinds from the spool the V oint of departure of the yarn as unwound rom the spool rises and falls, as indicated in Fig. 1 by full and dotted lines, and hence the yarn travels up and down in the guide slot 18. This variation in the position of the yarn in the slot, acting in conjunction with the lateral traverse of the yarn-guide bodily, causes the yarn as traversed on the rolls to reverse at points which lie in irregular or sinuous paths, varying in distance from the ends of the rolls. This is shown in Fig. 4:, wherein a portion of the covering 6 of the front top roll at is indicated as produced, and thereon a number of yarn traverses are indicated by the horizontal lines 24, 25 the reversing points or ends of such traverses being offset successively to the right as the yarn moves upward in its guide slot, as in the group 24, and as the yarn moves downward in the slot the reversing points are offset successively to the left, as in the group 25. As this grouping is varied by the movement of the yarn in the slot in the direction of its length, and such movement is more or less irregular, it is inevitable that the reversing points on the rolls will lie in very irregular paths, so that the wear is distributed evenly thereover, and grooving or scoring is eliminated.

A very short and relatively slow stroke of the traverse-bar effects the requisite reciprocation thereof, and in practice the stroke may be about one-fourth of an inch in length, for a front roll having a length of from an inch to an inch and one quarter.

It will be apparent from the foregoing description that the means for obtaining the desired distribution of the yarn traverses upon the roll surface is exceedingly simple,

andthat it obviates any complication of or change in the mechanism for eflecting the lateral reciprocation of the traverse-bar.

Having fully described my invention,

what I claim as new and desire to secure by Letters Patent is:

1. In yarn spinning apparatus, a series of rolls through which the yarn is drawn from rotatable spools, a traverse-bar between the spools and rolls and reciprocated with a constant stroke, and a series of guides fixed thereon and each having an upwardly extended, diagonal slot through which the yarn passes from a spool to the rolls, the travel of the yarn up and down the slot and the bodily traverse of the guide laterally cooperating to prevent the traverses of the yarn on the rolls from reversing at points equidistant from the ends of the rolls.

2. In yarn spinning apparatus, a series of rolls to act upon the yarn drawn from rotatable spools, a series of laterally reciprocated yarn-guides between the spools and the rolls, to traverse the yarn as it passes through the rolls, and means on each guide to act upon the yarn with which the guide cooperates and cause the yarn as traversed on the rolls to reverse at points in irregular paths thereon.

3. In yarn spinning apparatus, drawing rolls, upright supports for rotatable spools from which yarn is drawn by the rolls, and

a series of yarn guides reciprocated laterally with a constant stroke in a plane substantially parallel to the axes of rotation of the spools and located between the latter and the rolls, each guide having an upwardly extended, diagonal slot through which the yarn passes from a spool tothe rolls, the yarn traveling longitudinally .of the slot as its point of departure from the spool rises and falls and acting in conjunction with the bodily traverse of the guide to cause the yarn as traversed upon the rolls to reverse its direction laterally at points in irregular paths at varying distances from the ends of the rolls.

4. In yarn spinning apparatus, a series of rolls through which the yarn is drawn, and means to traverse the yarn upon the rolls as it passes therethrough, said means comprising a guide reciprocated laterally with a constant stroke and having an upwardly extended, diagonal slot through which the yarn passes to the rolls, the resultant action of the lateral traverse of the yarn and its travel longitudinally in the slot causing the yarn as traversed on the rolls to reverse at points in irregular paths thereon, to prevent grooving or scoring of the roll surface.

5. In spinning apparatus, a traverse-bar reciprocated with a constant stroke, and a yarn-guide thereon having a foot laterally adjustable on the bars and an upturned portion provided with an elongated, diagonal slot for the passage of the yarn therethrough, the slot changing the lateral position of the yarn as it rises-and falls in the 7 slot.

chine having a vertical thread spool and a horizontal roller over which the thread is drawn from said spool, and a guide device arranged between the roller and the spool and provided with an obliquely disposed slot through which the thread extends, whereby the thread is shifted longitudinally uponthe roller in the regular rise and fall thereof as it unwinds from the spool.

7. The combination with a spinning machine having a vertical thread spool and a horizontal roller over which the thread is drawn from said spool, and a guide member mounted between said roller and the thread spool and provided with an obliquely inclined slot opening upon the upper end of said guide member and adapted to receive the thread, whereby the thread is shifted longitudinally upon the roller in the regular rise and fall of the thread as itunwinds from the spool.

In testimony whereof, I have signed my name to this specification, in the presence of two subscrlblng wltnesses.

AMARIAH AVERY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

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