US1171249A - Apparatus for producing openwork fabrics. - Google Patents

Description

J. REYNOLDS.

APPARATUS FOR PRODUCING "OPENWORK FABRICS.

APPLICATION FlLED APR. 29, 191s.v

1,171 ,249. Patented Feb. 8,1916z 2 SHEETS-SHEET l:

S v k Q) Q l I l l I l i l l l I l l l l i l i l l l l l i J. REYNOLDS.

APPARATUS FOR PRODUCING OPENWORK FABRICS.

APPLICATION FILED APR.29, 1915.

ab. 8,1916l f 1,171,249.l 'Patented E -SHEET 2. 2 SHEETS- fzwaorf @7a/WU Zaag/z@ vwz'y k n 4 l I A f v .wat

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.\ 1 JoH`1sr.nEYNoLDs.0F NEW BEDFORD, `uursri'iicHUsE`rre,"iissreironl 'ro BUTLER MILL,

i or New nnpronn, MASSACHUSETTS., A courona'rron or MASSACHUSETTS.

To all whom z't may concern: y

'Be it known that I, JOHN REYNOLDS, ai citizen of the United States, residing at New Bedford, in the county7 of Bristol and State of Massachusetts, have invented new and4 useful Improvements-inApparatus for Producing )penwork Fabrics, of which the fol-A lowing 1s a specification.

My invention relates to apparatus for producing open-work woven fabrics; and its objects are to produce open-work in a direction transverse of the fabric by leaving out at predetermined intervals ,certain 'of the filling threads, to make all kinds andcombinations of longitudinal and transverse openwork for any distance f'or an even number of picks without affecting the speed ofthe loom; and to-eifect such rearrangement andv modification of parts of the loom `as could best bring about such result.

Primarily, my invention resides in anew arrangement of loom mechanism for causing one of the picker sticks to remain at rest during periods recurring at regular unit intervals,.and to. dispense with a number of picks while the woven cloth is being taken up, tile result being to effect lines of openwork transverse of the cloth of a width and spacing corresponding to said periods-and intervals.

My invention further consists in the novel arrangement of parts and modifications of loom mechanisms hereinafter more particularly set forth and claimed.

Prior to my invention, what is known as open-work in woven fabrics has been accomplished. commercially in three principal. ways which are essentially. different intheir I nature; ',first, by thejnon-inclusion of warp leaving empty dents inthe reed `because of arrangements, and requ1r1ng the constant atf tentionof operators of great skill and experienea `By'the use of my improved method, I am threads brought about through skipping or the drawing in of the warp pattern, and secondly, by the chemical change and 'destruction of certain of the-"filling threads after the filling threads and afterward removing the same. Other methods differentv from my invention have also been .employedin the endeavor to accomplish a similar resultsuch v as using anl empty shuttle or as throwing out the. pick cam, but such methods have v\-S1'iecieation'ot'. Letters Patent.

APPARATUS. Fon PBoDUcING orm'rwomr FABRICS. l

j PatentedF-eb, 1916. lApplmatmnmea April 29, 191.5'` serial No. 24,641.

of -negligibleconni'ercial value. In the second case,'.above referred to, where the removable' weft threads are interwoven,.these threads-are formed ofv a material which is capable of; being Idisintegrated through the action of some' acidwhich it is'as'sumed does ynot affect. the', material of the. remaining threads of theffabric; and: in the third case vwhere -tlie removable weft threads are laid upon the fabric outside of the warp shed, the free portlon of said threads, not Abeing an ,sof

integral-part of the woven cloth, may be cut away close tothe ends thereof and-'thrown away. While-the first method above specifiedforfleaving out the War threads has 'been 1n use` for many years or producing open-worklengthwise of thefabri'c, no practicable process or device has, so far as I am aware, lbeen `devised for yielding the same result in the direction of the filling threads except through the elimination and destruction of certain of such vthreads afterthey have been laid by the shuttle as above set forth. In other words, no one has been able heretofore practically to produce open-work by the non-inclusion in the first instance of filling threads of a character similar to thataccomplished by the non-inclusion of warp threads by leaving open dents in the reed.

`As is obvious, each of the methods above 'described for removing certain of the weft threads by destroying or cutting clear the same is wasteful of material and is cumbrous, laborious, and costly, the'employment vof acid beingrparticularly unsatisfactory because ofthe llength of time required for the process and of the uncertain action of the acid lupon -the Vpermanent fabric; and the laying o f filling threads outside of the sued occasloning mechanical diiiculties and disingly,\I believe myself to be the first person who hasever been able to accomplish tion refer to'similar parts'throughout-the several views.

Figure 1 is a front elevation of a loom I with dobby head, a portion of the mechanism being removed for the purpose of better showing my improved device and connections incorporated therein; Fig. 2 is a vertical section of the lay and adjacent parts on line 2 2 ofFig. l, looking in the direction of the arrows, showing my new mechanism for temporarily throwing out-the stop motion during the production of the trans verseopen-work; Fig. 3 is-an end elevation of the bladedl picker stick and adjacent parts, and Fig. 4' is a view of one `of the varieties of open-work cloth woven upon the machine.

Referring to the drawingl prefer to incorporate my new invention within a loom 5 and dobby head 6 of the same general construction as that in common use, and pro! vided with the usual attachments. lf desired, however, my device may be embodied and used to advantage in plain, fancy, /or boX looms, or in fact in any form of loon in which pickers are employed for throwing the shuttle through the' shed. As is usual in this form of construction the upper end of each picker stick 7l and a projects through a vertical slot in the end of the lay 13 into a shuttle boX 8 secured thereto, the lower end of each of said sticks being provided with a rocker 9 pivotally mounted upon a rocker f oot 10 which is secured to one end of the rocking shaft 11 journaled in suitable bearings upon the main frame 12. In constructing the picker stick`^7how ever, 1 depart radically from the usual form employed, in that I make the same with the broad blade 14 which is preferably integral therewith. Normally engaging with said blade 14 is-the elongated lug strapl 15 secured to the sweep stick 16, which is attached to the picking arm -17 operatively connected through the usual mechanisms to the lower shaft 18.

Principally through the construction of the picker stick 7 with the broad blade above described and mechanism for inducing the lug strap 15 to drop out of engagementtherewith at predetermined intervals. I am enabled to cause the Asaid picker stick to remain at rest during an even number of picks without stopping the machine. As a part of said mechanism, I employ the lever strap` 48, the loop of which engages with the lug end of the lever 49, the inner end thereof being provided with the slot 18 by which it is pivotally secured by the pin 19 to the periods of rest.

*franje of the loom adjacent thereto. .(/See Fig. 3).

A helical fspring 20, one end of which is connected with the floor, and the 'other end with said lever 17, serves when unopposed to pull'the lug strap 15 downwardly into the position shown yin dotted lines (see Figs. 1 and 3), and thereby to throw the; same out of engagement with the blade 14 of the vpicker stick 7. 'llhe said lever, however, is normally held in operativeengagement with the blade 14 by means of the lug 21, secured to the lowerend of the cord 22, the upper portion of which passes over the idler roll 23 upon the dobby vhead 6 and is fastened to the harness lever picker stick 7 will be at rest,and its return scribed, l have also provided a means for throwing out the stop motion during said To the said harness lever 24 normally held in the position yshown by the spring` 33, l fasten one end of the ,cord 25 which passes'over .the pulley 26 upon the frame and is affiied to the free end of rod 27, the other end of which is secured to the lower end of the oscillating bar 28. Normally, such free end rests upon and is operated by the cam 29 upon the lowershaft 18 in the` well known manner, the rod 27 having an opening 30 through which pro- 'ment with'the claw of the filling fork 32,

and thereby to prevent the stoppage of the loom by the absence of the filling thread.

As will be observed, the arresting of the picker stick 7, and the throwing out of the stop motion are simultaneously controlled by the harness lever 24, the movement thereof to the left serving to eect both these results at the same time. As is usual with dobbies of the well known construction` shown in the drawing, all the harness leversA are connectedl by oscillating levers to latches 35 and 36 which engage when in op- .erative position with sliding knives 37 and in, a lug strap en- :k and operativ/ely ent with the picker ans for temporarily 70 E engagement with ,id lug strap, and the stop .motion of y with the disenfrom said enlargeg icker stick-,mechaoicker stick formed :rmediate theA ends ircling said picker meeting said blade g mechanism, andv E engagement with determined period t disconnecting the tick, while the rer1 kof said loom con- `icker stick mechapicker'stick havrmediatel the ends .rcling -said picker nnecting the said :er actuating mechns actuated by said ng during an even d lug strap fro-n1 ibined with means I head for throw- )f said loom while igement lwith said icker stick mechaicker stick formed Y g strap encircling erativelyl connect- ,cker mechanism, a ted by soaid dobby ling an even numg strap from the v i means controlled throwing out the l while `said strap lade of the picker icker stick mechai, a picker stick le, va lug vstrap enof said latches, the pegs of the dobby chain 43 operating in the selection of the same in the well known manner. For the purpose of clearness, I have illustrated in the drawing only those pegs which actuate the harness lever 24.

The preferred operation of my invention .is as follows: The design of open work having. been determined upon, and the pegsof the dobby chain 43 arranged. accordingly, the loom is started. Through .the shed effected by lifting of certain of the harnesses 44 (of which only one is shown inV Fig. l) the shuttle is thrown by the picker sticks 7 and7a in the well known manner; and this operation is continued until the harness lever 24 is Aacutated by the peg provided therefor upon the dobby chain, when the shuttle is caused to remain at rest in proximity to the picker stick 7 for an even l number of picks.- By the proper arrangement ofppegs, the rest periods of said shuttle as well as the intervals between can be varied at will. Since the ordinary movement of all of the mechanismzof the machine, with the exception of the vmovement of the shuttle and picker stick 7, and the oscillating bar 28, still continues during said rest periods, the action of the usual take up mechanism (not shown) is uninterrupted andthe rolling up of the woven cloth continues at the same definite rate, the result' of which is to form the transverse open-work 45 as shown in the vwoven cloth 46 (see Fig. l

4) while the shuttle is at rest. If desired, longitudinal open-work 47 may also be produced by the well known method of leaving vacant dents in the reed.

While I have described the use and adaptation of myinvention to a loom with a dobby head, I by no means desire so to limitits application,it being obvious that my improved device could be used in connection with .other looms-in all cases where picker sticks are employed without departing from the scope or spirit of my invention.

What I. claim `and' desire to secure by LettersPatent is,-

1. In `a loom having picker stick mechanism and -stop motion, a picker stick having'an'enlargement therein intermediate of the ends thereof, picker actuating mecha.-y

.nism koperatively in engagement with the outer side of said enlargement, means lfor temporarily throwing out said mechanism from its engagement with said enlargement without ldiwonnecting the same from said picker stick, @d means for throwing out the stop motion of, said loom simultaneously with said pieken actuating mechanism.

2. In a loom having picker stick mechanism and stop motion, a picker stick having an enlargement there circling said Dicker stic connecting said enlagem actuating mechanism, me: moving aside and out o1 saidfenlargement the sa means for throwing out said loom simultaneousl gagementI of said strap 3. In a loom having p nism and stop motion, a with a broad blade inte thereof, a lug strap encf stick and operatively cor .with the picker lactuatin `said strap is out of eng:

enlargement.

5. In a loom having p nism and stop motion, a 1 a'blade intermediate the q strap encircling said pick tively connecting the saf picker Aactuating mechani means actuated by said d` engaging during an ever the said lug strap from .tl binedwith means control head for throwing out tl said loom while said stra} ment with 'said blade.

6. In a loom having p nism and stop motion, a p with a broad blade, a lu said picker stick and op ing said blade with the pi dobby head', means actual head for disengaging dui ber of picks the said llu said blade, combined witl by said dobby head for stop motion of said loon is disengaged from the b stick.

7. In a loom having pf nism and a dobby hea( formed with a broad blac circling saidpicker sticky and o eratively engagement with said blade, a cord e011-,

necting said strap with one oflhe harness levers upon the dobby head and normally supporting said strap in operative position against the tension vof said spring, and

. mechanism actuated by said dobby heady I" for periodically depressing said harness lever thereby throwing said strap out of engagement with said blade at predetermined unit intervals.

8. In a loom hav-ing picker stick mechanism, stop motion and a dobby head, a picker stick formed witha broad'blade, a lug strap encircling said `picker stick and operatively connecting with the lower end of saidlug strap and operating when unopposed to de' press the same out of engagement with said blade, a cord connectinglsaidl strap with one of the harness levers upon the dobby head and normally supporting said strap in operative position 'against the tension of said spring, and vmechanism actuated by said dobby head for periodically depressing said.

harness lever thereby throwing said strap' out of engagement with said blade at predetermined unit intervals, combined with means for throwing out the stop motion of v the loom during the said intervals.

9. ln a loom 'having picker stick mechanism, stop motion and a dobby head, a picker stick formed with a broad blade integral therewith, avlug strap encircling said picker stick and engaging with said blade and operatively connected with said picker mechanism, a dobby head, means operatively connected with one of the harness levers of saidhead for throwing said strap out of engagement with 'said blade at predetermined intervals, combined with means for throwing out the stop motionf of the loom during said intervals consisting of an oscillating lever for actuating the stop motion through the action of the filling* fork, said oscillating lever being free to move Aout of Apossible engagement with said fork, and a cord connecting said oscillating lever with said harness lever and operated thereby, for effecting said movement.

ln testimony whereof l have hereunto set my hand in presence of two subscribing witnesses, this 27 day of April 1915. p

JOHN anYNcLns'. Witnesses: y

)N HARRY J. RIELsEfrsNo, .fMAnrMclN'rosI-i.

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