US939622A - Braiding-machine. - Google Patents

Description

E. F. PARKS & S. W. WARDWELL. BRAIDING MACHINE. APP I.I CATION I'ILED mm, 1907.

Patented Nov. 9, 1909.

3 SHEETS-SHEET 2.

B. F. PARKS & S. W. WARDWELL;

BRAIDING MACHINE. APPLICATION 311.21) mm. 2, 1901.

Patented Nov. 9, 1909;

8 SHEETS-SHEET 3Q I WITINIESSES I ATTOlF/YEKS EDWARD F. PARKS AND SIB/DON W. WARDWELL,

E PROVIDENCE, EHOBE ISLAND.

BRAIDINGr-Mfi-kCHINE.

Specification of Letters Patent.

Application filed August 2, 1997.

V Patented Nov. 2, 190%. fierial 310. 386,813.

To alt whom it may concern:

Be it known that We, EDWARD F. PARKS and SIMON WARDWELL, citizens of the United States, residing at Providence, in the county of Providence and State of lthode lsland, have invented certain new and useful Improvements in Braiding-Machines, of which the following is a specification.

Our invention relates to braiding machines and particularly to that class of machines shown and described in our United States Patent No. 851204;, issued April 23, 1907, and in our pending application, Serial No. 250641, filed Jan. 3, 1907. In this character of machine the yarns from the lower supplies are caused to travel a sinuous course around the upper supplies, and our improvement relates to the means for guiding and easing the yarns over or under the carriers which support the upper supplies.

The invention is fully set forth in the following specification, illustrated by the accompanying drawings, in which:

Figure 1 is a plan view of a portion of our braiding machine showing the relation of the yarns to the carriers; Fig. 2, a detail elevation, part sectional on the line ar w, Fig. 1, looking in the direction indicated by the arrow .2; Fig. 3, another plan view showing the carriers slightly advanced from the position shown in Fig. 1; Figs. {i and 5, diagrammatic views showing the coaction of the yarn guides with the edges of the carriers. I

A+A, etc., represent the upper yarn supplies which are supported and carried by the carriers 2, the latter disposed in pockets in the edge of the head or driving plate 3, from 'which they are driven. The driving plate rotates in the direction indicated by the arrow a, carrying with it the carriers 2 which travel or slide on the sectional rail or track 4:. The track ported on a driving which also carries the head 5-see Fig. 2--

lower, supplies Bl$,

etc., and rotates in the opposite direction to that of theplate 3, row

Between the carriers 2 and the driving plate 2-; are slits b for the passage of the yarns bb, etc. from the lower supplies, and the carriers are connectedto the driving plate 3 by means of oscillating drivers T herein shown only in Fig. 2, preferably arranged as described in our patent and pending application abovereferred to. These as indicated by the aryarns slits 6 on the inside of the carriers.

the supplies sections 484; etc., are supdrivers engage the carriers first by one end and then by the other, to allow the passage of the yarn past their driving points and, as described in" connection with our other machine, switches 8 which automatically closeor'open the entrances to the slits 6, thereby determining the path of travel of the lower, sinuating yarn.

As further explained in our previous patent, the yarns from the lower supplies are led up to the braiding point from guides 14 which determine the normal positionof the in relation to the carriers. These uides provide that the radially mean path of the yarns b shall, fall just within the points or nose ends 2 of the carriers 2, as shown by dotted line Fig. 2, so that the yarns 5 would normally pass To cause the yarns to pass on the outside of the carriers, the switches from the driving plate 3 to deflect the yarns 1) onto ,the outer edges of the carriers.

The carriers 2 are preferably of lenticular form, so that the yarns in bearing on their edges 9 and 9* are further deflected radially inward or outward to pass them by the upper 1 supplies templates means for assisting this deflection of the yarns by the carriers, and consists of devices to act in conjunction with the edges of the carriers in wedging the yarns radially. inward or' outward.

For the sake of clearness, the yarns from A are not here shown, since their arrangement does not affect the present invention.

Above each supply 15 is provided a guide 11 for the yarn b, which revolves with the the drivers are arranged to operate through the 8 are projected outward A. The present invention con-' lower supplies and holds the yarn b to the points of the carriers while allowing radial movement of the yarn under the influence of the carriers edges. In our previous machines referred to, these guides were shown and described as having straight, radially disposed slots in which the yarn played, but the present invention comprises improvements in thetorm and arrangement of the slots in, the guides.

The guides 11 are preferably formed of wire, bent double to provide the two sides of the slot and, as now provided, the slot 12 takes a ii-shape at a point approximately midway of its ends, forming a guide crotch l3 and an opposed wedge formed abutment 15. The crotch 13 of the slot 12 is so pothe eye 14 fnormal position. The

- being essential .rierf -At 1) the gagement with the leading ends or points of the carriers 2. At 0 the slit 6 is shown open, and the yarn b is entering the slit and bearing on the inner edge of the carswitch 8 is shown closing the entrance to the slit 6 and deflecting the 7 yarn Z2 onto the outer edge of the carrier 2.

As the yarn 6 leaves the rear end of the carrier around which it has just passed, the yarn will be drawing across the crotch 13 of the guide 11, but as the yarn meets the deflecting edge of the carrier, it is raised out of the crotch and forced over onto the opposite side of the slot 12. That is, the yarn b will be deflected from the crotch 13 to r the point 15. Fig. 1 represents the yarns as Just being raised out of the crotches in the guides 11: in one case, at 0, through the deflection of the yarn by the inner edge, of the carrier, and in the other, at D, by the combined deflection of the outer edge of the carrier and the switch 8.

Fig. 3 shows the supplies in such relation that the yarns b are advanced part way around the edges of the carriers 2, and in this position the purpose of the V form of the guides 11 is made apparent. At C, it will be observed that the yarn b is deflected by the carrierover on to the inclinedface 16 of the guide 11, and it is obvious that this incline will have a wedging influence on the tensioned yarn, tending to carry it radially inward and thus assisting its passage over the arched edge 9 of the carrier 2, (see Fig. 4:). At D, the yarn b is shown deflected onto the incline 17 of the guide 11', the tendency of which is to force the yarn radially outward to ease its passage over the outer edge 9 of the carrier 2, (see Fig. 5).

While the guide 11 is shown as preferably made from wire, its substance and pre cise form, arrangement and mode of appli cation are not limited. (Ether expcdients for performing the same function readily sug gest themselves the trained ineehan The guide 11 i be in.- f-s'iaped from t has been found yarns strike the more abrupt rise on -thc edge of the carrier near the latters point. After the yarn has been eased over the hard part of this edge, it requires no further assistance and simply plays in the straight portion of the slot.

In brief recapitulation: The yarns 6 lead from the supplies B through the guide-eyes 1 1 and thence up through the crothes 13 of the guides 11 to the braiding point where they are gathered together with the yarns from the upper supplies to form the fabric. The yarns 0, with their supplies, are revolving in the direction indicated by the arrow yg and at certain intervals meet the points of the carriers 2 which revolve in the opposite direction, indicated by the arrow a. The yarns are engaged by the inner edges of the carriers or deflected onto the alternately, or according to the character of the fabric, as before described, and such engagement deflects them from the crotches 13, over to the opposite edges of the slot 12. If a yarn is bearing on the inner edge 9 of the carrier, it will be deflected to the inclined edge 16, and this engagement or bearing on the guide 11 holds the yarn to the edge of the carrier, at the same time wcdging or lifting it around the bulge in said edge. When the yarn draws across the outer edge 9 of the carrier, it is deflected to the incline 17 of the guide 11, and is thereby eased over the outer bulge of the carriers edge.

The yarn b is given its extreme radial deflection at the center of the carrier, and after passing this point, the deflecting tendency is relieved and the yarn returns under its normal tension to its mean radial position, drawing through the crotch 13, being new properly disposed to be acted upon by the point of the next succeeding carrier.

It will be realized that this invention shows important improvement, in that it provides for a minimum resistance to the yarns in passing them around the carriers and hence allows greater speed of operation of the machine with less breakage of the yarns and less chafing or abrasion, therefore tending to improve the product.

Having now described the arrangement and mode of operation of our device, what we claim is:

1. In of braiding machine, the combination of two sets of yarn supplie" cariiers to carry one set of supplies, 11mins to pass the yarns from the secono set of snn lics to eit er side of the carriers and. guides to act th on (he yarns outer edges plies, with lnticularly formed edges,

3. In a brai ing machine, the combination I of two sets of supplies revolving in opposite directions, carriers for one set of supdealternately carryin the fleeting means for yarns in position edges and guides ing in the opposite direction from the carriers and cooperating with the lenticularly formed edges of the carriers in deflecting the yarns in their passage about the supplies on the carriers.

4. In a braiding machine, the combination of two sets of supplies revolving in opposite directions, carriers .for one set of supplies, and guides revolving in the opposite direction from the carriers and formed with V-shaped slots coacting with the carriers to guide the yarns around the carriers in the manner and for the purpose specified.

5. In a braiding machine, the combination of revolving carriers carrying one set of yarn supplies, a second set of yarn supplies revolving in a direction opposite to that of the carriers means for deflecting their yarns to different sides of the carriers, and guides revolving with the second set of supplies, each formed with a slot having reversely inclined faces that coact with the carriers in passing said yarns about the latter as describe 6. The combination with the revolving carriers of a braiding machine and the oppositely revolving lower yarn supplies, of guides for the lower supplies formed with radially disposed slots having V-shaped portions arranged in the manner and for the purpose specified.

7. The combination in a braiding machine with a set of revolving yarnsupplies and deflecting means for sinuating the course of the yarns drawn from said supplies, of

auxiliary guides revolving with'sald ,sup

plies, formed with V-shaped slots adapted to normally receive and direct the yarns to draw through the crotches of said slots and, by their inclined faces, fleeting the yarns in passing carriers. I

8. The combination in a braiding machine with two members rotating in opposite directions and two sets of revolving yarn supplies. one set revolving with each member, of means to sinuate the course of the yarns them by the from one set of supplies to pass them alternately over and-under those of the other set, and auxiliary deflecting guides having a fixed relation to the yarns of one set to assist the sinuating means in deflecting said yarns.

9. In a braiding machine, the combination to contact with di erent below the carriers revolva wedge-shaped to also aid in dewith two sets of yarn supplies, carriers to carry one set of supplies and means to drive the carriers, of means from the second set of supplies to either side of the supplies of the first set, and guides to control, the yarns in relation to the carriers, said guides formed with crotches to regulate the normal position of the yarns and 1nclined faces acting in conjunction with the to deflect the yarns carriers to deflect the yarns radially inward or outward from their normal position.

10. A thread guide for a braiding machine formed with a crotch for maintaining a traveling thread in its radially mean path, and with a wedge-shaped portion opposing said crotch to act with deflecting effect on the said thread.

11. In a braiding machine, the combination with two series of yarn supplies and means for revolving the two series in opposite directions, of two different deflect-ing means revolving in opposite directions to each other and arranged to coact to radially deflect the yarn from one series of supplies,

first in one direction and then in the opposite direction.

12. In a braiding machine, the combination with'a carrier and thread guide having and abutment normally coact to cause a traveling yarn .to pass radially inward by the carrier, of a switch to deflect the traveling yarn from its radially mean path, so that it is en aged by the outer edge of the carrier an said wedge-shaped abutment, to pass radially outward around the carrier.

13. In a braidin machine,the combination with a thread guide having a crotch to hold a traveling yarn to its radially mean position and an'opposed wedge-shaped portion, of a carrier to engage andwithdraw the traveling yarn from said crotch of the guide, and force it into engagement with the wedge-shaped ortion aforesaid, to coact therewith to de ect the yarn from its normal path of travel. i

14. In a braiding machine having traveling carriers and means for supporting yarn supplies thereon, a second set of supplies supported below the first, means for revolving the two sets in different directions, and

,means for ra ially deflecting the yarn of the second set alternately inside and outside the different carriers, and clined deflecting edges ea arranged to facilitate the radial movement of the yarn in the direction in which it is first started.

In testimony whereof we aflix our signaturesin presence of two witnesses.

EDYVARD F. PARKS. SIMON \V. WARDWELL. Witnesses:

CHAS. A. EDDY, ARTHUR I. HARVEY.

abutment, which carrier 4 uides with 111 x 5

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