US1614099A - Braiding-machine carrier - Google Patents

Description

Jan. 11 1927.

$. 8. BLAEDELL.

BRAIDING MACHINE CARRIER Filed March 29. 1923 2 Sheets-Shea; 1

Jan..

11 1927 s. B. BLAISDELL BRAIDING MACHINE CARRIER Filed Marsh 29. 192:: 2 Sheets-5112812 alibi 44,21 5

Patented Jan. 11, 1927.

UNITED STATES 1,614,099 PATENT OFFICE.

SIDNEY B. BLAISDELL, OF PROVIDENCE, RHODE ISLAND, ASSIGNOR To RHODE ISLAND BRAIDING MACHINE COMPANY, OF PROVIDENCE, RHODE ISLAND, A CORPORA- 'IION 0F RHODE ISLAND.

BRAIDING-MACI-IINE CARRIER.

Application filed March 29, 1923. Serial No. 628,442.

This invention relates to improvements in a braiding machine carrier, and has for its object to provide in such a carrier a thread or yarn-guiding member for conducting the thread from the package to opposite sides thereof in .a path other than that traveled by the carrier to assist in maintaining a substantially uniform length of thread between the carrier and the braiding center as the carrier moves in and out in its serpentine raceway while revolving around this braiding center.

A further object of the invention is the provision of a thread guiding ring above the carriers to cooperate with the improved thread guide on the carrier in maintaining this uniform length of thread above referred With these and other objects in view,-the invention consists of certain novel features of construction, as will be more fully described, and particularly pointed out in the appended claims. 7 r

In the accompanying drawings:

Figure 1 is a side elevation of my improved carrier showing a guide arm mounted on the package spindle to swing from side to side and so guide'the thread out of line of the path of travel of the carrier more nearly in a circle as the carrier travels about its braiding center.

Figure 2 is a front view of my improved carrier showing the guide arm swung off to one side and the package removed to illustrate the spring for holding thepa ckage in operative position on its spindle.

Figure 3 is a section on line 33 of Figure 1, looking in the direction of the arrows and showing the under side of the arm.

Figure 4 is a section on line 1+4: of Figure 1, showing the locking pin for limiting the extent of rotation or oscillation of the guide arm. 7

Figure 5 is a side elevation showing a portion of the carrier in its relative position to the thread-guide ring with its arm swung gulde-ring as mounted also indicating 1n dotted inwardly and the above the Cl1161, lines the relative position of the carriers when on the-inside of the raceway with the towards the edge of arm swung outwardly the guide ring.

Figure 6is a'topjview of the carriershowing the top weight as provided'with afork straddling the package spindle to limit its upward movement.

Figure 7 is a top view showing a portion of the raceway plate with a number of carriers passing through the serpentine channel. in and out of the peripheral guiding line of the upper guide ring.

Figure 8 is a modification showing a fixed guide plate on the carrier provided with an elongated guiding slot for conducting the thread to either side of the carrier and on opposite sides of its path of travel.

Figure 9 shows a modified construction of this guide plate as supported on the weight standard above the carrier.

Figure 10 is a greatly reduced view illustrating the guide ring as being supported on the machine above the carriers.

In the practical operation of the usual braiding machine carrier its distance from the braiding center is constantly changing as it passes in and out through the serpenadapted to conduct the thread from side to side of the carrier insuch a manner as to maintain a substantially uniform length of thread between the carrier and the braiding center to compensate for the in and out movement of the carrier and so maintain a substantially uniform pull on the yarn by which construction the thread receives less wear due to decreased travel of the tension weight and much higher braiding speed is permitted due to the decreased slack in the thread and a substantially uniform pull;

and the following is a detailed description of means by which these advantageous results may be obtained V With reference to the drawings, 10 designates a carrier which is provided with the usual weight standard 11 and package spindle 12., On this spindle is rotatably mounted the usual supply package 13 whi -Jh comprises essentially the usual bobbin 14 supported on the boss 15 the samehaving teeth 16 at its upper end to receive the pawl tooth 17 on the top weight 18 which weight slides vertically onthe weightstandard 11 forked arm 19 which and is provided with a extends over to straddle the spindle 12 to limit its upward throw, as presently described.

The upper end of this spindle is preferably reduced in diameter as at to receive the hub 21 of the guide arm 22, and this reduced portion of the spindle is provided with an annular groove 23 in which one end 24: of a spring wire lock 25 is set to prevent the inadvertent lifting of the arm from the spindle and at the same time permit a free rotation or oscillation of the arm about the spindle.

In order to limit this swinging motion of this arm, I have cut away a portion of the under side of the hub 21 thereof as at 26, see Figure 4, and have inserted a stop pin 27 into the spindle, which serves to engage the walls of the cut-away portion of the hub on either side to limit the side to side motion of the thread-guiding arm. This thread-guiding arm is provided with a guide eye 28 near its hub 21 and a second gu de eye 29 near its free end both of which guide eyes are preferably lined with porcelain or other suitable wear-resisting material. In order to prevent the package fromlifting from its working position, I preferably mount a spring 30 in a slot 31 in the spindle 12 and preferably form a lip portion 32 on the spring to extend into the central recess 33 in the top of the bobbin whereby the bobbin is prevented from lifting when the yarn is being drawn at a rapid rate.

/ In drawing yarn from the package, I first thread the same through an eye 34 in the standard 11 and then down around the outer portion 35 of the top weight 36, thence up through eye 37 in the upper end of the weight'standard, thence through eyes '28 and 29 in the guide arm 22, then over the guide ring 38 which is supported by the uprights .39 on the raceway plate 40, as shown in Figure 10. v p

I In the operation of my improved construction of carrier as illustrated in Figure 7, the guide ring 38 is shown as being ofa diameter necessary to cause its outer or thread-guiding edge to pass substantially through the center of the quoits thereby dividing or reducing by one half the slack in the yarn occasioned by the in and out movement'of the carrier in passing through the raceway, and in order to compensate for the other half of'the slack in the yarn, I have provided the swinging guide arm22 which is of a length to extend substantially to the center of the quoits or to the circle of the guiding edge of the ring and to swing on the arc of a circle about the "axial center of the package as the carrier moves through its serpentine raceway back and forth to opposite sides of the center line of the ring thereby maintaining a substantialuniform lengthof yarn at all times between theaxial center of the package and the braiding center about which the carrier revolves.

In some instances, instead of using a swinging arm toprovide a guide to assist in maintaining a uniform distance between the braiding point and the center of the supply package, I may employ a guide plate or member ll such as that illustrated in Figures 8 and 9, which plate or guide may be provided with a thread-guiding slot 42 formed on an arc of a circle or in any other desired shape which is substantially that of the swing of the rude arm 22 and I may support this guide plate by any suitable means from the body of the carrier. In some cases, it may be supported on the weight standard 11 as illustrated in Figure 9 in which case where a weight is still found necessary, the thread may be led from the package beneath I the weight and back through eye 43 on the spindle 12 thence out through this guide 42, and over the guiding edge of the guide ring 38 by which construction a similar result is obtained as by the use of the swinging arm 22.

In order to preventfthe top weight from being thrown too high in drawing the yarn off during the rapid travel of the carrier, I have extended the forked arm 19 to a point beneath the hub-21 of the guide which limits the upward movement of the upper weight so that its "tooth-engaging detent will just clear the teeth of the bobbin.

By the use of my improvedguiding device by which a substantially uniform pull of the thread is -maintained, greatly increased braiding 'speedis maintained.

The foregoing description is directed solely towards the construction illustrated, but I desire it to be understood that I reserve the privilege of resorting to all the mechanical changes to which the device is susceptible, the invention being defined and limited only by the terms of the appended claims.

'I claim:

1. A carrier for braiding machines having a-thread guide member mounted thereon for conducting the thread on the "arcof a circle to either side of the carrier and to opposite sides of the center of its path of portion, said member being mounted tocause the thread guiding portion of said member to follow a path-nearer the path of a circle through the center of the quoits of the raceway than the path of said carrier.

3. In a braiding machine having a guide ring above the carrier positioned between the inner and outer paths of'the serpentine raceway,a braidercarrier having a spindle and a package thereon, a guide carried by said. braider carrier having an opening through which the thread leads from said package over said ring, said guide being mounted to have said guide opening at all times between the shortest distance from the package spindle to the guide ring.

4. A carrier for braiding machines having a package spindle and a thread guide arm rotatably mounted on said spindle to swing about the axis thereof and having its thread guiding end ofiset from the axis to maintain a substantially uniform distance from the braiding center, as the carrier revolves around it.

5. A carrier for braiding machines having a weight standard, a package spindle, a thread guide arm rotatably mounted on said spindle through which the thread is led from said weight standard.

6. A carrier for braiding machines having a Weight standard, a package spindle, a thread guide arm pivotally mounted on said spindle to swing about the same, a guide eye at the free end of said arm and through which the thread is led.

7. A carrier for braiding machines having a weight standard, a package spindle, a thread guide arm pivotally mounted on said spindle, said arm being provided with a guide eye near the axis about which it rotates and another near its free end through both of which the thread is led from said standard.

8. A carrier for braiding machines having a weight standard, a weight slidable thereon, a package spindle, a thread guide member rotatably mounted on said spindle adapted to swing from side to side and assist in maintaining a substantially uniform pull on the yarn between the braiding pointand the carrier and a minimum movement of the take-up weight.

9. A carrier for braiding machines having a supply package spindle and a guide arm rotatably mounted thereon having a thread guide near its end adapted to swing from side to side about the axis of the spindle by the pull of the thread as the carrier moves through its serpentine raceway.

10. A carrier for braiding machines having a supply package spindle and a compensating guide member having a thread guide ofiset a substantial distance out-of alignment with the axis of said spindle and adapted to guide the thread ofi at an angle and to the opposite side of the line of travel of the carrier.

11. A carrier for braiding machines having a supply package spindle, a standard, a thread take-up member thereon, and a com pensating thread guide on the carrier adapted to lead the thread to opposite sides of the carrier out of the center of its path of travel as the carrier moves through its serpentine raceway.

12. A carrier for braiding machines having a package spindle and a thread guiding arm rotatablymounted on said spindle to swing about its axis by a tension on the thread to compensate in a measure for the in-and-out movement of the carrier.

In testimony whereof I affix my signature.

SIDNEY B. BLAI SDELL.

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