US170458A - Improvement in looms for weaving webbing - Google Patents

Description

'H M. WITTER.

' 00M FOR. WEAVING WEBBING.

' Patented Nov.30,1875.

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vNTF'ETERS, PHOTO-LxTHosRAPMER wASHlNGToN D C UNITED STATES PATENT OFFICE.

HENRY M. WITTER, OF WORCESTER, MASSACHUSETTS, ASSIGNOR TO GEORGE CROMPTON, OF SAME PLAGE.

IMPROVEMENT IN LOOMS FOR WEAVING WEBBING.

Specification forming part of Letters Patent No. 170,458, dated November 30, 1875; application filed October 6, 1875.

Toall whom it may concern:

Beit known that I, HENRY M. WITTER, of Worcester, in the county of Worcester and State of Massachusetts, have invented an Improved Loomfor Weaving Webbing, of which the following' is a specification This invention relates to a loom for weaving fabrics partly tubular and partly solid,

by pins on a pattern-cylinder; but the invention may be applied to any other well-known class of fancy looms.

.The invention consists in a harness-lever, "a connected jack, a lever, and a pattern mechanism for controlling the jack, in combination with a second lever or nger, and pins or protuberances on a pattern-cylinder, to give additional movements to the jack-operating lever, as and for the purpose hereinafter set forth. Also, in a pattern mechanism, a jack and two levers or fingers, for moving it, each lever or finger being operated by independent pins or projections, in combination with a pattern-cam for controlling the fulcrum of one or both levers, and in other features of invention, as will be hereinafter described.

Figure lis a side view of sufficient of a loom to illustrate one application of my invention, and Figs. 2 and 3 are details.

In the drawing, I'show five levers, adapted to be connected by cords with harness-frames, and to be operated to form sheds, as described in United States Patent No. 51,928, and the reissues thereof. Four of these upright levers with their hooked or notched jacks, and fingers or jack-operating levers and their lines of pattern-surfaces, operate to lift their connected harness -frames, so as to weave a tubular fabric, and the iifth harness has its jack controlled by two fingers and two rows lof `pattern-proj ections, so as to place the warps carried by it either entirely in one side or part of the tubular fabric, so as not to interrupt the tube, or into first one part for onev pick, and then into the other side or part for another pick, thereby uniting both sides or parts by stitching warps and forming a solid fabric.

In the drawing, a, are the long upright harness-levers, notched for the attachment of cords and harness-frames, and each lever has pivoted to it a jack, b, connected with a iinger or lever', c, having its fulcrum on'a rod, d, and resting on a pattern-surface or mechanism, e, of any wellknown construction. These jacks are engaged by lifters and depressors fg, and the parts so far described are all as usual.

0f five harness-levers, a, employed inthis embodiment of my invention, (but one lever, however, being seen, the others being behind it in Fig. 1,) four of their connected harnessframes carry warps for weaving a tubular fabric, the pins in the pattern lifting them in the order necessary to weave a tube, which is well understood, and the draft of the mounting need not be shown.

The fth harness-lever, the one shown in Fig. 1, is adapted to be connected with a haron the main pattern-surface or by the side of it, as shown, or on an independent patternsurface, which might be brought into place intermittingly, to lift the finger h at the desired times, or as the exigencies of the pattern being woven demand. The lever or nger h, at one end, is provided with an en'- larged or elongated slot, j, to it over its fulcrum, d, and it has also an ear or pin, k, to

project within the path of, and Abe acted on' by, a linger-controlling pattern or cam, Z, carried on shaft r1, and actuated through a ratchet, m, and paw] n, the carrying-arm 0 of which is moved by a pin or cam, on, as shown in this instance, the pattern-shaft. The finger-controlling pattern Zhas a depressed or 'removed part, p. l

When the ear k rests on the periphery7 of the pattern Z, the lever h, when acted on by the pins or projections of the pattern-surface e, will be :raised at its outer end, its pin i lifting the finger or lever c; but when the ear comes opposite the depressed portion p, then a pin acting on h will raise the slotted end of h, and will not raise its other end and the `finger c.

The pins or projections on the pattern for operating these two adjacent fingers or le vers ZL c, controlling the movement of the jack connected with the harness-frame carrying the binding-warps, operate as follows, viz: During the time the tube is being woven, the ear lc of lever 71. rests in the open part p of pattern Z, so that, if moved by a pin on the patterlrcylinder e, it will not lift finger or 1e ver c, and the pins under or in connection with linger c so control the movement of the fingere, hooked jack b, and binding-warp harness-frame, that the binding-warps are retained altogether on one side of the tube, loe-- ing woven by the harness-frames connected with the other jacks, and the tube is not interrupted; but when a tubular fabric of sufiicient length has been woven, the length of the tube being controlled by the space 19 in the pattern Z, then the ear k meets the periphery of the pattern Z, and secures the end of lever It on its fulcrum d, so that lever h,

when lifted by a pin or projectionon the pattern-surface e, will lift the finger c, and at s uch times as to cause the binding-warps to be placed for one pick into position with the warps for one part of the tube, and then for another pick into the warps forming the other sideof the tube, and the binding-warps ,"sointroduced into each side will tie together the tube-portions, making a solid fabric for lalength controlled by the periphery of the `pattern Z.

When weaving solid, the linger or leverc derives its motion from linger or lever ZL; but it is evident that in some patterns it will at times happen that the finger c will have a pin under it, to raise it at the proper time to place the binding-warps in the then proper shed to tie the two webs of the tube together, and then it would be unnecessary for that pick to lift the finger c through the linger h and its pin.

In some looms forl complicated patterns, I propose to combine with each lever c a lever, h, and a pattern for the pivoted end of' the lever, and pins for each lever, as set forth. Instead of having the pins or protuberances for moving the levers h on the same cylinder or surfaceas are the pins for moving `fingers c, I may employ a separate cylinder or chain, and throw it into action as desired, in connection with levers h.

When using the patterns Z side by side, I prefer to make them, so that where one has a space the other will have a projection, and where one has an acting face the other will have i a space, the alternate patterns being conversely `arranged as to actuating surfaces and spaces.

The spaces and operating parts of patterns Z will be determined by the length of the tubular and connected spaces desired inthe web. t

This invention may be used for weaving bags, pouches, pockets, and other similar articles.

Other forms of-notched jacks than 'those described, and substantially such` as `shown in the wellknown Crompton looms, may be lifted by two levers and two sets of pins, one set for each lever, as and for the purpose described. j

I may employ two levers for the bindingwarp harness-frame, substantially `like h and o, each lever having pattern-surface to move it, and onebeing provided with a lever-controlling cam, Z, as described 5 but this arrangement I do not consider as good as the one shown in the drawings. t

Instead of pin t' projecting from h, I might use a pinprojecting from c, and resting ina slot in h. t

In operation, the warps forming oneside of the tubular portion, `or the faces which; would form a tube if not tied together byindependent binding warps, always remain on their same side of the fabric, whether weaving tube or solid, and in changing from tube to solid the tube-forming harness do` not change their weave.

I claim- 1. A harness-lever adapted to be connected with a harness-frame, a connected jack, alever to move the jack,`and a pattern-surface to move the lever, in combination with aisee-` ond lever and its actuating pattern-surface to move the lever, connected with and moving` the jack, substantially as described.

2. A harness-lever, adapted to be connected with a harness-frame, a connected jack, two jack-operating levers, and two `rows `of `pattern-surfaces for actuatingthe jacklevers, iu combination with a' lever-controlling pattern, Z, substantially as described.

3. A lever and pins or protuberances on a pattern-surface, for 4actuating it, in combination with a second lever, provided with a slotted end, and adapted to raise the former lever, and with pins or protuberances for raising, and a pattern-surface for controlling, the slotted end of the latter lever, substantially as described. t 1

4. The combination of harness -operating mechanism controlled by pattern surfaces adapted to form sheds in warps to Weave a tubular fabric, with harness-operating devices adapted to move a harness-frame provided with binding-warp, and with mechanism to move the lever controlling such binding-Warp harness-frame, whereby a binding-Warp may be introduced into one or both sides of the tubular part, to permit the fabric to remain as a tube, or to connect the regularly-Woven sides to form a solid fabric, substantially as described. v

In testimony whereof' I have signed my name to this specification in the presence of two subscribing Witnesses. f

HENRY M. WITTER. Witnesses:

J. A. WARE, HOMER WYMAN.

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