US1418521A - Lace-braiding machine - Google Patents

Description

E. TURCK AND E. BGSEBECK.

. LACE BRAIDING MACHINE.

APPLICATION FILED NOV. 20. 1920.

1,41s,521. I rammne 6, 1922.

Imam tors} Y 40 i erected on the-braidinglplatQ drawn away over the said wires.

UNITED, STATES GERMANY.

v manna-1mm, MACHINE; V 1 i T 0 all whom it may concern. I U

Be it known tl'IELt -W GLEUGEN TiiR'eKand EMIL Bosnenox, both'citizens of the German Republic, residing at Langerfeld, near Bar men, Germany, and Barmen, Germany, re-

spectively, have inventedcertain new and.

useful Improvements in a Lace-l3raiding Machine, of which the following isa specif I the mand rel'could not' bedrawn away at all from'gthe .inb'raid ed needles and there would fication. v I

' In the manufacture of a single-thread lace fabric there have beenhitherto' generally employed, for forming eyesin the midst of the web, for widening various parts of'the web and so on, so-called auxiliary threads" which, when the fabric 7 is produced, are

braided into the web and are later removed fromthe latter at completion. To introduce these auxiliary threads a certain'number of {the bobbins provided on the machine must be employed, so that, in order-to produce a very d'iiiicultand especially time-absorbing to remove the'threads from the completed web, and forthis work many "factory-hands are required. ,Finally, these auxiliary threads lead to great wastage of thread material since they cannot be further utilized..

' The object of the presentinvention is to dispense with these auxiliary threads in the finanufacture of lace :fabric on single-thread braiding machines andconsequently to obvia'tef the above-described drawbacks v This c f attained by employingiinsteadof auxil- R iary threads, braiding Wires which atone of their ends extend into the thread-collector and at their outer ,en ds' caniberaisjed and lowered by means of a mechanicaldevice The web is:

.It 1s known in the operation of two-thread I braidingmachines (i; e,, thosegha'ving not a singlebut two threads per plate) to employ" wire needles for producing eyes in themidst of the fabric. 'In this case howeverithese 'iieedles consist of a'jcomparatively thick, rigid' piecfe of wire and by the braiding be 50 method indeed is employablef in the case of two-thread machines wherein' th'e threa,

collector, consists of an open 'memberyand wherein af ci own likel beater Qengaging the fabric' f r'om' above is employed, andwherein come incorporated with I the fabric, "This Application filed Noveinbe-r 20', 1920. sriaiiini. 425,551. 7

surrounding the latterand wherein a "crownlike beater is'employed iwhich operates-{rem' c i below on the *fabricfl as the latter is formed;

Specification of Letters 1 mm. Patented IJ L'RHC 6,1922":

also it isfla' questionof a loose ffabri'c, but is not"eniployable:inijsingle thread braiding I Inachines wherein the'ifabric dra'w'nfjoil over a mandrel by' neans ofa closed The braided fabric tightlystretched' mime be'fno room for them i fi wfiefi the ring and themandrel, 1 I y r Now the presentinventionrenders possible I i the employment for'singlethread machines" i of; the method known for, t'woIj-thread ina-v rio- chines, owing tothe employment o'f verylii e, H springy, elastic wires (steel wires), thesebeing so braided in'thatthey all become 'siti ated on'theoutside of the webQa-nd are em? braced only by thoseloops oi the ,brai di'ng tween-the ring' 'a'nd the mandrel there-will su-flicient space for the fine wires, which scarcely exceed thethic'kness ofthe braiding threads, so that-the web can pass freely and;

yield owing to their elasticity."

" Apparatus for carrying out invention 1 J oi [example in'the {a'c'co'n is shown by i'ya panying drawing, wherein vF 1g. 2 the same inve1-t1calsect1on, and

'machine on a larger scale,"

A s seen fromFig l, the outfit of the thread lacegbraiding.lmacliine is the usu l, one, the braiding track being constituted of round p'lates a arran'gejd in a; circleg A ci V v v 3 shows 'the drawing off device ofthe' cording to the invention there :ismouiited on those of the plates q, whereonan' eye be it formeda mechanical device such as'lwill'be understood particularly from Fig.1? of the drawing. This deviceismounted with its foot 6 centrally" on the particular plate a and f Y i with its other foot '0" outside the track. Be-

-i tween the twoijupper, mutually lacing ends of the two portions of the device is provided; a the passageforthose threads of'the bobbins which pass through the device, slidable across this passageis the sleeve 'e"which serves as holder for theb'raidingLwire' d,

made, :for example, fine steel wire. The.

arrangement is such thatsaid sleeve can be dispo'sedat onemoment on the upper portion of the device and at another moment on'the lower portion thereof, and in that way the wire 01 will at one time be abo'veand at an- I other below the thread of the bobbin running in theouterportion of the track. The .sleeve. e holding the wire d is safely retainediby means of a springf which snaps into this sleeve, while the latter can be released from 1 the upper portion o fithe device bymeans of the lever 9 so that the sleeveslips down by gravity-on to the lower part of the device.

The sleeve 6 may be returned tothe upper part of the device bymean's offa rod Jalo- I cated inside the device pi'issingthrough the wheel-column of the particular plate. The rod 72, as well as the lever g reeeive the r necessary movement from the pattern. gear.

The other or free end the fine, elastic wire (l is conducted through the collectorring 2', passing between this and themandrella andprojecting somewhat out of said ring 2'. The elasticity of thewires so acts that they do not turn sharply round the loweredgegof the ring i'butleach passes throu h a lar e bend into its vertical )OSltion In. this way any tight-squeezing oi? the thread-loopsaroundthe wires at this place is avoided I I I r Usually the wires (Z, are in theupper position indicated in Fig. 2 by. the full; line.

anda wire would be lowered into the; position shown dotted only when a thread-loop isto be formed, and would. immediately this'is that the wires (Z become. positioned entirely outside the fabric as will be seen ,is raised by the pattern gear the sleeve will be raised .and 'willbe helduponthe depending'inner end of the post 0, by the spring H In operation the sleeves are moved upward by the rods h, the upper ends thereof beingshapeditoreceive-the sleeves e, and the posts or hollow. vertical I-shaped standards irom,Fig. In this way any working-in,

oft-he wires "and consequently sticking of the tubular web on thQrHlzU'lCllGl are avoided,

and consequently, the web can be drawn freely 'over the wires.

The uprights or postsc, to which the levers g areattached, each of the postshave inverted U-shaped POIitiQIlS zDDG depending end thereof being in line'vertica'lly with the center of the tubular post Z), such end beingofi fa size to receive the, sleeves e, withwhich the wires-(Z are connected. WVhenthe rod h 7) are carried by the disks (1, andthe inverted J?shaped standards .or uprights are maintained by the outer plataorframe.

a'lined ends ofthe posts are separated to provide a g pzfor the passage;' of threads from. the bobbins The. sleeves are moved ,gfinom the,invertedrU-shaped fportion of the 'postc, which'bridges'or straddles the outer normal position on the rod h.

I claim:

ent wires norinallyheld. ust overthe transi tional, web with their upperends extending tional web from the bobbins, ;a pl irali't thin,- springy steel wires normallyl hel d list over the transitional. web. with th'eii up er I ating eyes therein. thereupon bei'aised again. The result ott portion of the track by leverg, which'is oscillated; by .a rod' that is. reciprocateds at the proper interval, being controlled by a pattern gear to move a Wire from elevated to 1. A lace braiding machine, comprising in combination a track plate having a plurality I of circularly armnged. discs defining the track for circulatingthe bobb ns, acentrally disposed mandrel for receiving the braided web, a collector-ring surroundin'gfthe finandrel ior gathering lu-p thetransitional web from thebobbins, afplui'ality ofthin, resilithe mandrel ioi' gathering up;..-the" titans-iends extending up vardly betweenjsaid' {col- Jector-ring and .ma'nd'rel, and iiiea i1s,..for

in and out of theitransi tional,web. for geii'er- 3.1M lace braiding machine, comprisingin coinbin ationi. a track plate having a plurality of circularly arra,nge(l' cl;iscs defining. the

trackl'or circulating the-bobbins, a centrally disposed mandrel, for receiving the braided web, acollector r-ingsurrounding theiman- .drel, a number, of: devices straddlingfthe vi' ed outer arcso f the track and reach pro H with a gap tjo allow. ofthe passage o t breads Erom the bobbins inlsaid arcs 'aplii ralityiof' ,thin, resilientwires norm-ally held 'atthe'ir 1 jloweiiends by said dei ices just abo e said gapsaand;attheir upper ends eXt'endin'gup-I I wardly between said collectorsring and m' ndrel, and-v ineans for shifting the" lower'v ends of anyof sa d, w1resaerosssa d {gaps and returning them to.,th eir ,norm al, positions;

A lace braiding :imach'irie, comprising in co nbination a track plate having :a; plu-g rality of, circularly arranged discs defining the track for; circulatingthe bobbins, a: censhifting, the lower ends of any iof s'a-idwires tra-lly disposed mandrelyfor receiving the braided web, f a collector ringf surrounding the innerilimb'sjofea'ch u having a ap. is

iallow' of i theQpassage ofthreads" fromnthe bobbins Lin said. areal, 5i? plurality of: sliding members; normally resiliently. held; by. said devices justabov e sa'id gaps, a plurality of tlie-mandiielfa number of 'inVerted-UTOrmed. devices stra ddli-ngthe outerarcsiof theft'ra'ck,

thin, resilient wires attached at their lower ends to said slidingmembers and at their upper ends extending upwardly between said collector-ring 'and'mandrel, and means for sliding said sliding members across said gaps for temporary retention. by said devices while the bobbin-threads pass through the gaps and then returning them to'their normal positions. 5. A lace braiding machine,-comprising in combination a track plate having a plurality of circularly arranged discs defining the track for circulating the bobbins, a centrally disposed mandrel for receiving'the braided web, a collector-ring surrounding the mandrel, a number of inverted-U formed devices straddling the outer arcs of the track, the inner limbs of each .U having a gap to allow of the passage of threads from the bobbins in said arcs, a plurality of sliding members normally resiliently held by said devices just above said gaps, a plurality of thin, resilient wires attached at their lower ends to said sliding members and at their upper ends extending upwardly between said collector-ring and mandrel, and means controlled by the pattern sliding members across said gaps for tempogear for sliding said the bobbins in said arcs, a plurality of vices just above said gaps, aplurality of 'thin, resilient Wires attached at their lower ends to said sleeves and at their upper ends sleeves normally resiliently held by said de l extending upwardly'bet'ween said'collectorring and mandrel, and means for sliding said sleeves across said gaps, for temporary retention by said devices while the bobbinthreads pass through the gaps and then returning them to their normal positions.

7. A lace braiding machine, comprising in combination a track plate having a plurality'of circularly arranged discs defining the track for circulating the bobbins, a centrally disposed mandrelfor receiving the braided web, a collector-ring surrounding the mandrel,a plurality of sets of invertedand I standards having between them gaps to allow of the passage of threads from the coaxial with the discs of said arcs, the J 1 bobbins in said arcs, a plurality of sleeves} normally resiliently held above said gaps on the J standards, but capable of sliding on to the I standards so as to be held belowi I the gaps, a plurality of thin,resilient wires attached at their lower endsto said sleeves and at their upper ends extending upwardly" between said collector-ring and mandrel,v and means influencedby the-pattern gear for sliding said sleeves from the Jstandards 'on to the I standards and returning them after the passage of threads through the EUGEN TURCK. ,EMIL BosEBEoK.

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