US831322A - Needle-loom. - Google Patents

Description

No. 831,322. PATENTED SEPT. 18, 1906. J. G. BROOKS.

NEEDLE LOOM.

- APPLICATION FILED MAB..17. 1904.

I 5 r I a 0 M I 4 i I INVENTOR,

. BY v ATTORNEYS.

UNITED STATES PATENT OFFICE.

Specification of Letters Patent.

Patented Sept. 18,1906.

Application filed March 17, 1904. Serial No. 198,667.

To all whom it'may concern: Be it known that 1, JOHN C. BROOKS, 'acitizen of the United States, residing at Paterson, in the county of Passaic and State of New Jersey, have invented certain new and useful Im rovements in Looms, of which the followmg is a s ecification.

My invention re ates to needle-looms; and it has for its principal objects to provide means for preventing each shot of the weft, after being roperly placed in osition as the fell of the c 0th, from being a terward disarranged in the working of the parts of the loom, and to provide means for stoppin the loom automatically both on failureof the filling or on failure of the needle to properly project itself through the shed.

In the accompanying drawings, Figure 1 is a plan view of enough of my improved needle-loom to illustrate my invention. Fig.

-2 is a vertical sectional view of the 100111, showing in side elevation the parts seen in Fig. 1; and Figs. 3 and. 4 are sectional views of details.

a is the breast-beam of In the drawings, the loom, b, the batten; c, the art at the breast-beam over which the clot (1 extends on its way to the take-up mechanism, and e the knock-off shaft carrying cranks g.

Suitably su ported in fixed position, as by bein secured to the breast-beam and to brac ets h, carried by the frame of the loom,

- are two elongated cases i, arranged parallel with the warp and on both sir es thereof. Each of these cases incloses a feelcr 7', having a longitudinal slot 7c and two upwardly-extending -lu s Z, formed in the adaptation shown by bends inthe metal of which the feeler is made. These lugs are not directly side by side, but one is a little nearer one end of thefeeler than the other. One end of the .feeler rojects into a hole m, which pene-- trates ongitudinally the forward end of the case. The other end is formed with an opening n, which receives-a lever 0, fulcrumed in the bracket h and pulled against a cam 72 on a rotatin shaft 9 by a spring 1", the lever being adapte to pla in a slot s in the bottom of the case i. T ere are two of each of the parts 0, p, and 1', one for each feeler.

In each casin is arran ed a pin f, which projects upward y throug the slot k of the feeler. Each feeler, as it is'caused to reciprocate'm the casing by the coactive efiects of cam p and sprin 1', intermittently moves forward shghtly- )eyond the pin f. (See Fig. 4.)

t indicates the needle, the same being suitably supported and adapted to move horizontally ack and forth through the shed in the usual manner and also through an opening a 1n each case i, the weft-thread e extending from the su plv (not shown) thro h the needle to the 0 0th. When the need e has projecteditself through the shed as far as it will go, (the dotted-line position, Fig. 1,) an edge-thread carrier w is moved vert1call to introduce its thread a: throu h the loop of the weft-thread formed by t e needle. The edge-thread carrier w may be of an wellknown type and it requires no further description herein.

he operation of the parts so far described is as follows: During the time when the bat ten is back and the shed formed the needle t is projected throughthe latter. While the needle is .at or near its limit of movement, (indicated by dotted lines in Fig. 1,) the edgethread carrier moves verticall to carry its thread through the loo 0 weft-thread formed by the needle. T 1e needle then retracts, and as it does so its loop slips along the portion of the edge thread as which stands between the 'cloth and the ed ethread carrier Ultimately as the nee le recedes it leaves the loop of weft-thread behind it held by the edge thread as the fell of the cloth. During the receding motion of the needle the feelers i coact with the ins f to successively clasp and firmly hol the edge thread and weft-thread. When the needle passes the left-hand feeler, the corresponding cam p permits the spring 1 to actuate lever'o to advance the feeler, whose lugs I pass the pin f, and thus form a bend in the edge thread which will hold the latter, and when the needle passes the other feeler the latter will be caused to advance in the same manner, so that its lu s Z will coact with the corresponding pinf tol1old the weft-threade.

The parts 1 and f in each instance therefore not only act to take up any slack in the thread, but isolate the portion thereof between themselves and the cloth from disturbing effects, such as the motion of the I needle in receding or with the batten.

In brackets (V on the breast-beam are fulcrumed bell-crank levers z, oneend of each of which projects opposite the hole m in thecorrespondin case c. The other end carries a link 1 in w 'ch is sustained a dog 2 having its free ends notched, as at 3, and pivoted in crank g. If the weft (or edge thread) breaks, instead of the feeler being held thereby a ainst movement past the position shown in Tig. 4 it will be forced forward in the case under the pull of its spring r until 'i-ts'front end protrudes through the case, actuating-lever z, and raisin dog 2. N ormall the notched end of the 0g is below the patii of movement of a hunter 4 on the batten, but when it has been raised by lever z in the manner just stated'it will be struck by the bunter, which will act to rock the knock-off shafte and stop the loom. .To the crank g is connected by a pitman 5 another dog 6, which is suitably pivoted in the frame:

7 is a detector-lever pivoted in the hunter 4 and having one end pro'ectin in the path of movement of the needle. the needle properly projects itself through the shed, its tapering end will engage the upper end of the detector-lever and turn the latter on itspivot,

raising the other end of said lever, which will cause the lattertostandsoas notto en age the dog 6 in the backward movement 0 the batten; but if the needle should fail to prop erly work the detector-lever will remain idle and as the batten moves back its lower end will engage dog 6 and cause the same, through the pitman 5, to rock the knock-off shaft and sto the 100m.

11 order to open out the 100 of weft-s0 that the ed e-threa'd carrier may ave a clear way theret rough, the upper end of lever 7 may be inclined on the side thereof away point, as at 8. Thus when the lever 7 is enfrom the needle, so that the latter has a tapered gaged by the needle and is moved back by the tapering end thereof wiping a ainst it it will protrude itself up between t e needle and thread and, on account of its tapering form,

widen the space between them.

Referring again to the means for holding the edge and weft threads, it will be observed that it results in preserving a uniform regular I edge on the edge-thread side of the fabric and in the weft-loops being left just as they have been initially beaten up by the reed. There is no undue pull resulting from the subsequent movements of the parts after a given shot of the weft has been placed in osltion tending to effect indentations in the e go of the fabric, on the one hand, or to pull it away from the fell of the cloth after once being beaten up on the other hand.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

-1. In a loom, the combination of means for carrying the weft through the shed and means, actuative upon. said first-named means leaving the shed, for clamping the shotof'weft last deposited against the pulling effects of said weft-carrying means, substantially as described. v

2. In a loom, the combination of means for carrying the weft through the shed in a succession of loops, means for introducing an edge thread through said loops, successively,

and means, actuative after each introduction of the edge thread through a loop of weftthread, for temporarily securing said ed e thread against pulling effects, substantial y as described. Y

3.- In a loom, the combination of a weft-introducing needle, a case, said needle bein movable through the case, and means, locate in the case, for securing the weft-thread upon .the retraction of the needle, said means comprising a movable feeler having thread-engaging lugs and a fixed thread-engaging part coactlve with said lugs and to hold the thread, substantially as described.

, 4-. In a loom,'the combination of means for carrying the weft through the shed in a succession of looips, means for introducing an" edge threadt rough each loop, a case, said weft-carryin means being movable throu h the case, an means, located in the case, or securing the edge thread upon the retraction of the weft-carrying means, said means comprising a movable feeler having thread-engaging lugs and afixed thread-engagin part coactlve with said In s to hold the t read,

.substantially as descri ed.

5. In a loom, the combination of the knockoff shaft, the batten, a hunter on the batten, a crank on the knock-off shaft, a part carried by said crank and normally disposed out of the path of movement of'the bunter but movable into the path of movement thereof to be substantially as described.

6. In a loom, the combination of the knockoff shaft, the batten, a crank carried by the knock-off shaft, a pivoted dog, means for connecting said dog and the crank, a weft-carrying needle, and a detector-lever pivoted on I In testimony whereof I have signed my the batten and engageable at one end by the name to this specification in the presence of needle, said detector-lever being also enga 'etwo subscribing witnesses. i able with the dog to actuate the same and t 1e J ()IIN C. BROOKS.

knock-oil shaft upon failure of the needle to Witnessesz actuate said detector substantially as de- JACOB TOBLER, scribed. Y

| A I. SMITH.

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