US1629886A - Rug-weaving machine - Google Patents

Description

' WA Pam 1,629,886 May 24,1927. J? F. PTACEK.

RUG WEAVINC- MACHINE Filed May 20. 192s 2Sheets5heat 1 a 56 m TOR. Jbszs /l PTAcEK May 24, 1927.

J. F. PTACEK I RUG WEAVING MACHINE Filed May 20. 1926 2 Sheets-Sheet 2 INVENTOR. JbssP/v fi' PrflcaK W/r/vsssg "7W F M w, 4m 5;

A TTORNE Y5,

I beam .13, so as to distribute the pressure which otherwise would be wholly uponthe collar of the shaft 19. A lower, complemental, co-operating cross bar 24, carrying hooks fixed therein, is arranged for vertical movement at the front of the loom. Each'end ottlrecross bar 26,- 26,rwhich latter is adapted to be entered in any one of a plurality of transverse bores 26 in spaced vertical orderlin the lower, part of the uprights 10"1I1Cl= '1 1,-S O' that.

V the saidcross bar .24. may; be. placed in any one of several positions. Rope sheaves 27 and 28, are journaled upon-the inner sides of the uprights 10 and 11,;1'-

' 'spectively, at a suitable. distance from'the floor." Cords 29 andI30Jattached-in anyw i convenient manner to. the endsiotthe' cross bar 24, pass over the rope sheaveseandare connected at their other ends to weights 31 ai1d32, the la'tt'erlifting the said cross bar- 24 when freed for movement, and preserving its parallelism during suchmovement. I

With the parts arranged assl'iow'n' in F 1g.

1, thecross bar ismaintained in initialposi tion by passing the pins 26,26, into the opposite holes 26" in the uprights 10 andill that is, in. the second or third holes in the order of their ascent." Commencing at the leftzot' thelowerlcrossbar 24the end of the warp is secured to the first hook 25, and

then passed over the first hook 18 at the' leftof the'upper set, then, returned under the second hook of the lowerset," and then over the second-hook oflthe upper set, and

so on, .until the warpsare spread for the Width desired, after which the last end off the warp will be attached'to one of the hooks, 1

as at the beginning. Any slack which exists in the sheet of warps, may be taken up by withdrawing the'pins 26,26, and lowering order that this may" be done with ease, I

gradually-become shortened, due to their dev rthe'hand'lever40 is given an opposite movethe cross "bar 24 to stretch the warps. In

provide a treadle 33,. pivoted at itsrear end to the underside of the bottom cross beam 15' near the middle of the latter, and connected intermediate its ends to thecross bar24,

by a'link or links 84. By depressing the treadle 33, the holes in the ends ofthe cross bar may be brought into register with lower holes in the uprights l0 and 1 1,and the cross bar :be secured in its new position byfi the pins 26, 26 as before described.

In this connection, it will be in order to state that as the weaving proceeds the warps flection about the weft, as will be later described To compensate for this condition,

laxation to permit the'weaving to proceed,

the treadle 33.will be depressed so as to permit the withdrawal of the pins 26, 26';

thus freeing the cross bar 24 for upward direction. and the movement under restraint of the tre'adle 33 until'the holesin the ends of the cross bar are brought into. register, with; next' pair 01E I holes 26" above; The pins are }then' inserted,

in the. registering holes to hold the crossbar in .fiX-ed position during the next period .of weaving. This operation of shifting the 24' is perforated for the reception of a 'pinv position-( tal c cross bar 24may be repeated as often as is 13 and 14; The pinions 122; mesh one with theneXt across;the{loom,:so'that all;rot"ate together,,-thel even, numbered ones in one 1 ,odd numbered ones in'thef opposite direction; V L

1 .Tw oiof' thershaits' 19, one-nea1 each oppo-Q' site si'deaoftheloom, are extendedupwardly distance,andhave fixed upon 2. V .the extending ends sprocket wheels35 and 36 necessary inthe weaving opgerat-l onsa aboutzrwhich is passedian endless chain.,37;

A bracket '38,;extehding rearwardly. of the -.loom,--is attached to thecros's 'beams-li'l and 14 .at or near their middle, The said bracket" is provided witha pivot .39. upon which-is r mounted for' lateral vibration' a handoper- 1 ated' lever. 40; connected intermediate its ends, by a pin 41 set therein'toone of the runs-lotthexchainx37. Stops'42 and 43 mounted upon the-bracket 38, limit the vi.- bratio'ns. of the hand lever 40, "so that-in." the oscillations-of the'latter, the chain'37 is moved to turn the sprockets and} through them the row of pinions, together-with the hooks 1811113011 the-lowerfends of. the shafts upon which tl1e.ipinions .22 aremouhted.

TheeXtreme throw of the hand lever; 40 i effects a rotationof thehooks through angarc. of 180, thatis fronioneshed forming posi-" tion shown in Fig.5, through the inter-mediate-pos1t1on*shown 1n .F1g.;4',-to the reverse [shed forming position shown in Fig 6. An

extreme throw ofthe hand lever 40 in'eith'er direction from its neutral position will turn I the warps. from theincommon'plane as i1- lustratedin Fig. 4, so that they will stand in parallel planes as ,shownjin Figs. 5. and

6, so. that a shed is formed into which a l wefti 44 may be laid and beateniup.

such movement of the handlever, the alter nate hooks 1'8 rotate together and oppositely tothe others, as is shownin Figs. 1, 5 and 6. .After the weft 44has.:been laid in the first i shed andbeaten up to the fell'of the fabric,

mentsoas to cross'the warps about theweft just'laid and form anewlshed into which the" :weftmay be laid after-being turned about the outerwarps so asfto forma good selvage.

' The weft last laid is then-beaten up, and the ricisreached.

sheds are successively formed. it the fabric with 'a' row (if aligned holes, vertical being woven approaches completion, a point ishaftsjournaled for rotation onein a hole in is reached at which insertion of the weft willeach of said beams; the. said shafts being.

7 be attended with some difiicultypbut this; provided each with a warpeng'aginghook may be facilitated at such time-by the use fatfits lower end andwith a pinion at its of a long needle for inserting the weft'ini upperend;the'pinions on the several shafts I the lastshed as the'opposite fell of'the fabintermeshing,certain of said'yshafts being v 1 r n "provided; with sprockets, "a chain "passing Upon completion of-the weaving, th ef cross, about i the sprockets," a pivoted. hand, lever i V I bar 24 is released from its last fixedapositioni connected "to 7 one run of the hain; stops a and the tensionupon-thefabricis,perrnltted limiting the movements ofthe handljv' to'relax. The hand lever tO'is thrown to its thatgthe hooks are" rotated, in unison Q neutral osition; to face the hooks 18 to the alternate-hooks ini fopposite directions] to front of the loom as shown in-Fig. 4. ,The form the sheds, aal'ower'cross' bar'p'rovided 3,,"

7 "loops maybe slipped off'the hooks 18 and. wit h warp:engaging-hooks, qlneanslfor, se,-' 3 L 25'of the'rows, and the completed fabric recuring thef-cro's s bar find-adjusted position moved from the loom. By slightly shaking upon-the uprights, and means connectedto I or beating the fabric, the w'arpsfando weftimthe crossbar for adjustingthetension ofthe f threads will assume-naturalpositions and the warps.

. Having thusdescribed my inv-ention wh at posed 'o ftwo uprights connected at their I claim and desire to secure by Le'tter's' Pa 1 upperends by parallel cross beams each protent ofthe United states is g' v c i V v 1. In a rug weaving loom, a frame comshafts journaled for rotation ionein'a} hole posed of two uprights connected at their {in each of' said*.bea1i1s,the sald'shafts being T-vided with. a row of aligned jholes, vertical upper ends'by parallel cros'sbeams each proprovided each wlth'wa-rp engaginghook at vided with a row of aligned-holes vertical itslowerefnd vand Wltlla pinion atits;-upper shafts journale d forrotationone in a hole'fend,' the'pinions: on thesevera-lfshaf ts inter-v I c in each of said beams; thesaidshafts being-V. meshing,;*certain OfSitlClShZtfts beingpro- 1 ,7 providedeach with arwarp 'engaginghookgvided'with sprockets, a chainpas'sing' about I at its lower endfand with a pinion at; its the sprockets, a pivoted hand leverzconnect'- upper end, the pinions on the several shafts Ced-tofone run of the chain, stopslimitinglthe' interlneshing, certain ofxsaid shafts being gmovements of"the -hand lever, so "that the f provided with sprockets, a' chain passing hooks are rotated; in unison butlalternate about the sprockets a pivoted hand lever hookslin opposite directions to form then connected to One run of the chain, so that; sheds, a lower cross bar provided with'warp" g by vibration of the handlever the hooks engaging hooks, means forsecurlngthe cross I are rotatedin unison but alternate hooks in barflin adjusted position upon the uprights,

" opposite directions to form the sheds, a" atreadleconnected'to the crossbar'for lowera I lower cross barprovided with warp engaging the same, andcounter weights acting to;

ing hooks and stops limiting the vibration raise the same.

of the hand lever to define thesheds g In testimony,iwh'ereof I have signed '5 l J 2. In a rug weaving loom, a frame-corn name" at Milwaukee, this 1st day of ,Mayy i posed of two uprights connected at their up- 1926." per ends by parallel cross beams eachupro-h

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