US940286A

US940286A - Automatic weft-replenishing mechanism for looms.

Info

Publication number: US940286A
Application number: US40612107A
Authority: US
Inventors: Melvin L Stone
Original assignee: DRAPER CO
Current assignee: DRAPER CO
Priority date: 1907-12-11
Filing date: 1907-12-11
Publication date: 1909-11-16
Anticipated expiration: 1926-11-16

Description

M. L. STONE. AUTOMATIC WEFT REPLENISHING MECHANISM FOR LOOMS. APPLICATION FILED DBO.11, 1907.

940,286. Patented Nov. 16, 1909.

3 SHEETS-SHEET l.

M. L. STONE. AUTOMATIC WEFT REPLENISHING MECHANISM FOR LOOMS.

APPLICATION FILED DEG.11, 1907.

Patented Nov, 16, 1909. BSHEBTS-SHEET 2.

FIG.2.

Z0 itrz e 8685 M. L. STONE.

, AUTOMATIC WEFT REPLENISHING MECHANISM FOR LOOMS.

APPLICATION FILED DEO.11, 1907.

Patented Nov. 16. 1909.

3 SHEETS-SHEET 3.

loom as is necessary for the understanding" UNITED STATES PATENT ()FFICE.

MELVIN L. sro'N or LOWELL, mAssAoHusET'rs, ,ASSIGNOR TO DRAPER COMPANY, or

PORTLAND, MAINE, A conroaarron or MAINE.

AUTOMATIC WEFT-REPLENISHING MECHANISM FOR LOOMS. I

Specification of Letters Patent.

Patented Nov. 16, 1909.

Application filed December 11, 1907. Serial No. 406,121.

To all whom it may concern: I

Be it known that I, MELVIN L. STONE, of Lowell, in the county of Middlesex and State of Massachusetts, have invented certain new and useful Improvementsin Automatic lVeft-Replenishing Mechanism for Looms, of which the following is a. specification.

The object of this invention is to increase the number of spare Weft-carriers used in automatic weft-replenishing looms and to enable said weft-carriers to be assembled in large number away from the weave room,

thereby enabling the spare weft-carriers-to be put in position on the'loom at remote intervals and without any attention on the part of the weaver. To this end, the weftcarriers are put in place on a detachable flexible chain of indefinite length provided with means for holding weft-carriers and for the attachment of the ends of the weft threads. This chaincarrier can be supplied with the weft-carriers outside of the weave room and, if desired, can be rolled into small compass. The loom is provided with appropriate means to cooperate withand feed said chain-carrier step by step as required, so as to present the weft-carrier successively into transferring position in the loom. q

The present improvements are illustrated in the accompanying drawings, wherein Figure 1, is a side view of so much of a of the present invention, the improved weftreplenishing devices being illustrated in position. Fig. 2, is a horizontal section of the parts shown in Fig.1. Fig. 3, is a plan view of a portion of the chain-carrier showin some weft-carriers in lace. Fig. 4, is a si e view of one of the ho ders of the chainoarrier which holds a weft-carrier butt.- Fig. 5, is a similar view of a support and retainer for a weft-carrier tip. Fig. 6, is a detail section in the plane indicated by the line 66 in Fig. 5.

As shown in Fig. 3, the weft-carriers are ut in place and held by a chain-carrier of indefinite length, and which preferably is made long enough to hold sufficient weftcarriers to supply the loom for an entire day, thus making it feasible to replenish the loom when the mill is not running. The details of the chain-carrier will not be described until after it has been made plain how such chain-carrier supplied with weftcarriers is used on the loom. I

The chain-carrier is used in connection with a' rotary magazine and transferrer resembling those set forth in United ,States Letters Patent of Stimpson, No. 664,790,, December 25, 1900, and No. 718,587, January 13,1903. At one end of the breast-beam B, of the loom is a fixed bracket O, carrying a horizontal stud D, on which turns a-rotary magazine comprising a hub, and two sepaeries of which are suitably toothed, as shown v rated sprocket wheels F, and G, the periphi in Fig. 1, to engage the chain-carrier. As

shown in Fig. 2, these sprocket wheels are a suflicient distance apart to receive between them the lengths of the weft-carriers.

\Vhenever a weft-carrier is transferred into Weaving position in the loom, the sprocket wheels F, and G, are fed forward one step automatically in the manner in which the rotary magazine of said Stimpson patents is fed. The lowermost Weft-carrier (see Fig. 1) is in transferring position, being maintained there, in a Well-known manner, by a fixed stop a. most weft-carrier is directly above the chamber (open top and bottom) of an automatically threading shuttle. when the lay is at or near front center, as in said Stimpson patents; and it is also immediately below the usual transferrer H. This transferrer, as in the said Stimpson patents, is automatically moved whenever the condition of the running weft demands. Thereupon, the

zine'is simply a feeder for the detachable chain-carrier.

The chain-carrier is guided into position upon the sprocket wheels of the magazine by means of the fixed guides I. (see Figs. 1 and.2) and is directed away from the magazine ,when depleted of weft-carriers by the fixed guides J, shown in Fig. 1. Fixed In this position said lower transferrer ejects the lowermost weft-carrier guards K (see Figs. 1", and 2), maintain the 2 chain carrler in cooperation with the sprocket wheels of the rotary magazine.

The chain-carrier consists of holders and supports M, pivot rods N, links 0, and

' rows of links 0, pivoted to each other in sponding Weft-carrier.

line with the rods N; and between the said links and'the holders and supports are distance studs b (Fig. 6), which secure said links to ;.said holders and supports, and

which also serve aslbearings for the anti friction rollers P, which cooperate with the sprocket-wheels. The sprocket teeth pass between the rollers P, and also between the outer links 0, and the inner holders L, and supportsM. This construction givesa flexible chain construction to cooperate with the sprocket-wheels, and at'the same time fixes the holders "L, and supports M, with respect to each other so as to enable them to retain the weft-carriers.

flang e'c, to partially embrace the butt of the weft-carrier. The flange, however, does not extend all around, but leaves the holder open on one side, this being the bottom when the corresponding weft-carrier is in transferring position."

The support M, is for the tip of a correhowever, does not come into immediate contact with the tip of the weft-carrier, but it serves as a support for a presser plate or retainer Q. This retainer, as is best shown in Fig. 2, is mounted on a stem 03, whlch extends through and' is guided by apertures in the support M, and in the corresponding link- 0. A coiled spring R, interposed between the retainer and adjacent link 0, and

' surrounding stem 03, forces the retainer Q,

.- forced ownwardly by the transferrer.

against the tip end of the weft-carrier with sufficient force to maintain the weft-carrier 1n lace, said Weft-carrier being thereby forclbly pressed at its butt against the face of the holder L. Each weft-carrier is thus rasped and yieldingly'held at its two ends.

he spring-pressed retainer Q, is grooved as illustrated in Figs. 2, and 5, so as to permit the esca e of the tip when the Weft-carrieTrIis e spring'R, is not strong enough to resist the force of the transferrer. When the chaincarrier-is empty, fresh weft-carriers are supplied by pulling outwardly each retainer Q, a ainst the tension of its 5 ring R, by means of a knob S, on the stem Each retainer Q. 'has an outwardly pro- This tip support,

jecting stud T, constituting a guide around which the thread of the corresponding weftcarrier is passed, as indicated .in Fig. 3. The thread might be wound about this stud and be thus heldin place. Preferably, however, the endof' the thread is simply passed around this guide and its free endiis held in a notch or anchorage U, (see Fig. 4), in the butt holder L, so that the guide and anchorage are separated from each other. Ac-

cordingly, when a weft-carrier is transferred into weaving position in the loom, the thread is freed from the guide T, but is still held by the anchorage U. This furnishes slack thread so that the liability is diminished of breaking the thread when the weft-carrier is its first traverse throug the shed. The

transferred into weaving osition and makes anchorage U, it will be noted, is nearer the middle of the loom and to the adjacent selvage than is the guide T.

The chain-earner is supplied-with weft-- suitable time, as before the mill starts in the The'holder L, is for the butt of a weft carrier. Ithas an inwardly pro ectmg morning, or after it closes in the evening. The chain-carrier is'brought into coopera tive position with the rotary magazine which can be turned by hand until the leading '-weft-carrier is in transferring position.

The chaln-carrier is fed step by step, as re plenishing demands, until all of its Weftcarriers have been used, or until it is replaced by a fresh one. In case all of the weft-carriers are'used, the empty chain-carrier drops by ravity from the bottom guides K, away from the loom. A suitable receptacle may receive the empty chain and also the depleted weft-carriers.

1 I claim- 1. An automatic weft-replenishing loom having, in combination, a. rotary-magazine having separated sprocket wheels, a transferrer,'means for feeding the magazine. one

ste whenever the transferrer acts, and a de tac iable flexible chain-carrier of indefinite length coiiperating with said rotary ma azine, said chaln-carrler havm means or grasping and yieldingly holding at butts and tips respectively .a large number of weft-carriers, and having also a guide and a separated anchorage for the thread of each weft-carrier.

r2 An automatic weft-replenishing loomhavlng, 1n comb1nat1on, a-rotary magazine having separated'sprocket wheels, a trans- .ferrer, means for feeding the magazine one step whenever the transferrer acts, and a detachable flexible carrier of indefinite length 006 crating with said rotary magazine, said flexible carrier having means for holding a large number of weft-carriers, and having also an anchorage for the thread of each having, in combination, a rotary magazine having separated sprocket Wheels, a transferrer, means for feeding the magazine one step whenever the transferrer acts, and a detachable flexible-carrier of indefinite length cooperating with said rotary magazine, said flexible carrier having means for holding a large number of weft-carriers.

- 4'. An automatic weft-replenishing loom having, in combination, a rotary feeder, a transferrer, meansfifor moving said feeder one step at each action of the transferrer. and a detachable flexible-carrier of indefinite length cooperating with said rotary feeder, said flexible-carrier having means for holding a large number of weft-carriers 5. An automatic weft-replenishing loom having, in combination, a feeder, a transferrer, means for moving said feeder one step at each action of the transferrer, and a detachable flexible-carrier of indefinite length cooperating with sai'dfeeder, said flexible-carrier having means for holding a large number of weft-carriers.

6. An automatic weft-replenishing loom having, in combination, a transferrer, aidetachahle flexible-carrier of indefinite length having means for holding-a large number of weft-carrier's, and having also an anchorage for the thread of each weft-carrier,.'and means for feedingv said flexible-carrier at each action of the transferrer.

7. An automatic weft-replenishing loom having, in combination, a transferrer, a detachable flexible-carrier of indefinite length having means for holding a large number of weftcarriers, and means for feeding said chain-carrier at each action of the transferrer.

8. A flexible-carrier of indefinite length for an automatic weft-replenishing loom having means for holding'a large number of weft-carriers, and having also a guide and a separated anchorage for the thread of each weft-carrier.

9. A detachable flexible carrier of indefitiite length for an automatic weft-replenishing loom having means for grasping and yieldingly holding at butts and tips respectively a large number of weft-carriers.

10,. A detachable flexible-carrier of indefivi nite length for an automatic weft-replenish ing loom having means for holding a large number of weft-carriers, and having also an nchorage for the thread of each weft-carr1er.-

11. A detachable flexible-carrier of indefinite length for an automatic weft-replenishing loom having means for holding a large number of weft-carriers. I

12. A detachable flexible-carrier for an, automatic weft-replenishing loom having means for holding a multiplicity of weft-- carriers, both when attached to and detached from the loom, and said carrier when loaded with weft-carriers being attachable to the loom.

13. An automatic weft-replenishing loom having, in combination, a transferrer, a de-. tachable flexible-carrier having means for said flexible-carrier relatively to said transferrer.

In wltness whereof, I have hereunto signed my name in the presence of two subscribing witnesses.

MELVIN L. STONE.

WVitnesses: I 4 WM. T. MoLLoY,

CHARLES STICKNEY.

- holding a multiplicity of weft-carriers, both