US1705324A - Loom attachment - Google Patents

Description

March 12; 1929. w. BREWER I 1,705,324

LOOM ATTACHMENT I Filed June 30. 192 2 Sheets-Sheet 1 IN VENT OR WHERE/V Bet-W52,

BY d/M%% ATTORNEYS Patented Mar. 12, 19 29..

1; UNITED} STA ES: TEN OF WARREN BREWER/E NEW-YORK; l l'."Y.', AssIGNon To mnonnnrxneoiumny. or. -wnsr WARREN, MASSACHUSETTS, AcoRPonA'rIoN or massacnnse'rms.

' LOOM ATTACHMENT.

Application -filed Juneau, 1927. v serial n iaoasmj This invention relates to improvements in looms, andhasparticular reference to an attachment therefor capable of producing ripples in mattress ticking.

An object of the invention is; to utilize the operation of theilay of a 100111 to intermittently produce a slack in certain warp threads of a shed with which the weft threads are laid sothat the finished fabric Wlll be woven with ripples therein.

Another object is to reciprocate a guide roller toward andaway from certain warp, threads to alternately place the same under 7 tension and relieve said tension to produce a slack in said threads at the shed of the loom whereby the weft-threads are laid with the slackened threads to form ripples in the warp of the finished fabric.

The above and other objects will appear more clearly from the following detail description, when taken in connection with the accompanying drawings, which illustrate a preferred embodiment of the inventive ldea.

In the drawings 7 Figure 1 is a fragmentary and partially diagrammatic view of a loom showing the improved attachment thereon in side elevation, with parts broken away and shown 11] section;

Figure 2 is a partially diagrammatic rear elevation; and

Figure 3 is a fragmentary plan View of a fabric made in accordance with the invention.

The invention is especially designed for making mattress ticking, but its application to the weaving of other fabrics is obvious. The attachment may be mounted on different types of looms with equal facility and, as shown in the accompanying drawings, is applied to a loom comprising a frame generally indicated by the numeral 5 having the lower warp beam 6 journalled in the rear thereof from which warp threads 7 are fed to the weaving mechanism, the finished fabric 8 being thereupon wound upon the take-up roller 9. The frame 5 has the usual harness supported thereon including the heddles 10 which form the shed through which pass the shuttles (not shown) operating in conjunction with the oscillatory lay 11 carrying the reed 12 that lays the Weft threads against the warp threads to form the fabric 8.

In accordance with the present invention it is preferable to guide the warp threads mediate its fronithe beam around'therollers13 and 14;

carried'by the brackets 15 and over the roller 16 supported by the brackets 17, said brackets eing attached to the rear ofthe frame-5.. Other warp threads'18 are unwound from an upper or auxiliary beam 19 supported in; j

standards 20 fixedtothe frame 5 and'these threads are guided through the. heddles so as to combine with the threads 7 to-form the. warp of the fabric.

vIn-connection with the threads 18 itis proposed to utilize a device on each side of the loom frame under thecontrol of the lay 11 to alternately place .saic threads 18 under the usual tension to which the same. are subjected when being woven in the ordinary manner and then release said tension to permit the threads to slacken. This slackening of the threads extends to the shed formed by the heddles 10 and said threads are laid with .the weft in their slackened condition with the result that ripples, indicated at 21 inthe fabric 22 (Figure 3), are formedat intervals which impart to the fabric a unique appearance.

As shown in Figure 1, each of said devices on opposite sides of the frame 5 comprises a cylinder 23 pivotally supported at 24 interends about an axis transverse thereto so as to permit of at least a limited rocking movement of the cylinder ifsu'ch is found necessary for the proper operationof the device. A rod 25 is extended through the cylinder 23 and is connected at its rear end to one end of the guide roller 26. This roller is projected rearwardly under the influence of a spring 27 coiled in said cylinder and having one end engaged with the adjustable collar 28 on the rod 25 and its other end contacting the front end of the cylinder. In its rearward position the roller 26 engages the threads slack and this slackness extends back to the shed where the weft threads are interwoven with the warp. r

e roller and consequently To accomplish thealternate tensioningand slackening of-the threads 18, the oscillation of the lay 11 is used in conjunction with the spring 27. ,An abutment orcontac-t member 30 is adjustably mounted on the rod 25 ea.

of the lay strikes the member 80 and, as a, consequence, moves the rod 25 and roller 26' forwardly, theamount of such movement depending upon the positioninwhich the member 30 is secured in itsrelation to the'lay. The adjustability of themember 30 makes it possible to regulate the amountofslack to be obtained-in the threads 18 with a corresponding change in distinctiveness ofthe ripples 21 in the finished fabric. Asthe lay'starts its return or rearward movement, thesp'ring 27,'whi ch has been compressed by the forward movement of said l'ay, now becomes effective to force the rod 25 and roller 26 rearwardly toagain place the threads 18 under tension. This action is repeated asthe weaving progresses, resulting in therproduotion of a fabric wherein certainwarp threads are lnterwoven with the weft 1n a comparatively loose or slack conditionto; form rpws or ripples with the" ripples in; e ac li row spaced apart at fairly regular intervals.

I What is claimed is In a loom, the combination with a. frame, and alay mounted'therein; of a cylinder pivotally supported intermediate its ends by said frame, a rod extending through and slid'able in said cylinder, a guide roller carried by one end of said rod and engaging certain of'the warp threads to maintain them under-tension, means carried by said ro d on the opposite side of said cylinder from said roller and engaged by saidlay to move said rod in one direction and thereby relieve the tension on said threads to produce" a slack therein, and a spring in said cylinder to move said rod: in the opposite direction to restore the tension on said Warp threads subsequent to the'laying of theweft threads therewith.

In testimony whereof I have aflixed my signature.

' W RRE RE ER"

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