US2328981A - Loom attachment - Google Patents

Description

SePf' 7, 1943- H. H. HUGHES LOOM ATTACHMENT Filed July 17, 1941 5 Sheets-Sheet l LOOM ATTACHMENT Filed July 17, 1941 5 Sheets-SheetA 2 Inventor v Sept 7, 1943- H. H. HUGHES 2,328,981

LOOM ATTACHMENT Filed July 17. 1941 5 sheets-sheet 5 jfl/9.0i

Sept 7, 1943. H. H. HUGHES v 2,328,981

LOOM ATTACHMENT Filed July 17, '1941 5 sheets-sheet 4 nventor Sept. 7, 1943.' H, H. HUGHES 2,328,981 I LooM ATTACHMENT Filed July 17, 1941 5 Sheets-Sheet 5 Znwcntor 3S l MZZrZfr Egg/7m' "Patented Sept. 7, 14943 y. c LOOM ATTACHMENT n i `Herbert .ughnliughes, Columbus, assigner The present invention relates toloom attachments, and more particularly to certain improvevlments-in cut` measurers and signalsgfor textile ,weaving machinery. V

n In trie textile trade, @10th is generally soid in i rayardage-basis, that is in continuous'deflnite lengths because of certain Well known advanjtages. i i g ufiAn object of the presentinvention is to secure measuring of such denite length in that the i .loomis .automatically stoppedl at the completion .of-this deiinitejlength which is generally referred ltocas a cut; and the invention also contemf `:plates that a signal, `preferably a visual signal,

` L V. be given as to the cause of loom stoppage in order "that the loom attendant or 4operator shall not be `deceived as to the causeof such stoppage. fffModern looms are equipped with avariety of 4stopwmotions for the purpose of stopping the loomin certain `eventualities,"such for` instance as the breaking of the warp thread. Stoppage .undernlsuch conditions requires a repair. As a result,` as sbon' as the loom is stopped theloom fixerior attendant begins to `examine the stalled 'machinery for defects or deciencies to `repair lingorder that thel operation of the loom may be `fr esumedat the earliest practicable moment.

It is therefore an object of the invention to provide in connectionwith the warp stop motion asignal device forfshowing' immediately 4tothe `attendant that thegstoppage of the loom was not occasioned by any cause demanding repair @but only by completion fof therequisiteA linear yardage; to the end that the attendant may .tgrapidly put 'the loom` back into weaving perl- 1 forrn'anca i c f .n.glAnothenobject of `the. invention is to utilize the electric 'stop motion 4now found in standard equipmenton conventional looms on whichto 5 vbase extension circuits including a controller and switches for causing this standard stop motion to be actuated on the production 'of the `With the foregoing and other objects in Aview, the. invention will be more fully described hereinafter, and will be more particularly pointed `out `in theclaims appended hereto.

i In the drawings, wherein like symbols refer` u to like or correspondingpartsthroughoutthe i several views, i g f t :Figure 1i is a perspective view of an improved `:cut measurer and signaLconstructed in accordance with the `present invention and shown coupled to the sandroller of` a loom, vindioatedin c chain lines.

to; Swift Manufacturing `(lompanyl, C olumbus Gaf e corporatie@ Pf George i Appiicationrulyfn,1941, serial No. 402,826

` 8 claims.` (cifras-44o) `Figure 2 is also a perspectiveview of the improved cut measurer-and signalyas seen from an opposite end, illustrating the gearing and also the sand roller, the latterbeing broken away. A

- Figure 3 is `a top plan view, on an enlarged scale,` and with parts brolen'away," ofthe improvedcut-measurer andsignal.` A -i i Figure 4 is a central vertical section taken longitudinally `through the same on the linel-I in Figure 3. f

. Figure' is a horizontal central section Vtaken Figuref. is. a verticalI cross section taken" on the lineVE-B in `Figure 4.`

Figure 8` is` a fragmentary perspectiveview of one section ofA the automatic` circuit controller -with both `member switches in open position.

. Figure 9 isa front elevationl looking from the` `right in Figure 8.withithe 'controlplunger retired `and the .two member switches both closed. 1

f Figure 10` is` asimilar view showingthe subsequent phase in which control Aplungeriis in advance position prying open both member 4switches;` i i i :Figure 11 is a cross section taken on the line ll-H FigureiQ,` and f f VFigure 12 is a diagrammatic view n'cuit diagram 'showing the wiring of the improved .device to the standard circuit of a 1oom.,-`

Referring more particularlyito the drawings,

iin Figure .1 there` is shown in dotted or'lchain llineswa conventional form of `loom of :which-the lsandroller is designated atl5. 1 1 f Asl` shown in Figures l and 2, the sandroller l5 is equipped with a pinion .I6 fast thereon u disposedin mesh with a gear wheel 11,Which in roller I5,

.turn "meshes :with a pinion I 8.

The `pinions I E and l 8f and the `gear wheel I1 form a suitable -gearritrain i for-` communicating the rotary motion f ofthe sandroller l5 to the ;improved cutmeasurer and signal which is housed for convenience in a container i9 affixed in any suitable manner to the loom frame adjacent one end of` the sandstiu` referring to Figures 1 and 2, theiopof the container i9 is shown as having a window 20, @covered by plain or lensglass or other translucent material .thro-ugh which a visual signal is displayed for theattentionand information of the loom attendant' or i operative; and exposed externally of the containeriS is the handle 2'I of a" manual switch operable, by such attendant as hereinafter described.A

including crv VIelfxlrleshed gearf- .train-f i The gear reduction unit .,LcaI.`

The H Y u 1 nose'5 l.' Such 'no-se nts betweenthe longerlspring 75 Referring more particularly to Figures 3 to 7 inclusive, 22 designates a shaft mounted through an end wall of the casing l!v upon the external end of which the pinion IS is made fast and `upon the inner end of which is iixedly secured a pinion 23 meshing with the initial gear 24 of a gear reduction unit constructed as follows:

The initial gear 24 is loosely mounted on the shaft 25 adhas fast therewith a single-tooth gear 25; At'each revolution-of gears 24, 26, the lo tooth 2l encounters star wheel 28 loose on shaft A 29 and rotates the same one step. Star wheel vc'arries with it pinion 30 which is disposed in con: tinuous mesh with a second gear wheel 3| of the reduction train. This second 'gear wheel 3l and.` la

its single-tooth gear 32 are loose onthe shaftq25.'

tooth 33 will engage and rotate one step a secondv g j star wheel 34 which, with its associated pinion 35m is mounted for loose rotation on the shaft` 2'9r20 Binicng'gs meshes J with the third gear WheelASB of the ,reductiontrainwhich carries fast with it Ithefsinglei-,tooth gear 3] having the tooth 33 meshing with, starV wheel 39, the pinion 4a of y whichlmeshes with the last gear wheel 4l ofthe reductiontrain.v This last gear wheel 4l loosely rotates about shaft 25vr and has affixed to the side ihereofazcam disc 42. t

' suitable form and supported and driven irrany 'appropriate manner. Such reduction gear may becorn-posed 0f? any Suitable number `of gearnnits other-than the three units herein shown and.'` defcribedg i und this form` of gear reductiom pro- 40 ).ducinggasitgdoes; verysmall movementjin the cam disc l;l` Lcomparatively to the revolution rate vQthe lsanrircllerV I5, vto beconvenient andv suitahlefor thepurposes of this invention.

1 Dueto theifreedorn of the various gear wheels if upon shaft 25, detents i4 are preferably engaged therewith ,to arrest'rotation of a casual or. accidental nature, but yielding to permit the enforced rctationfof the vparts under. thezcompulsion ofthe w may bemcuntedzupon a frame 45 installedasla .unitxwithinthacontainer:,I9.

Theucam :disc .42 operates as a controller'l for automatic switches which 'governi-the stoppage of the 100m and theiiiuminanon of the iamp 4s ,55 housedwithin the containerA [.9 below thawinidQWfZ. 1i i l y Y e? As.' shown in. Figures 4, `6 and '7, plungers 411 fand'd arranged vertically one above another at 1diametrically opposite sides of the cam disc. 42 60 :bearat their inner vends againstrthe volute periph- 'eraTcurver'Of the'disc and' are guided in their reciprocating movements, incident to therotation =of`thedisc 42 by the Yhorizontal arms t5 'of a ver- 'tically-disposed- 'frame' ilfwhichV may be alii-xed 'D to the gear reduction frame 45 or to any-other appropriate'support in the container i9. Q alftefer'ring more particularly to Figures Sto 11 `-'inclus'ii/avone' plunger 4'lwith its member switches `70 A disclosed, theunit on the '.diametrically ,op'

posits side or the disc belier-g` smsstanuauy` identipli'nigerlhas alrounded ortaperingiouter contact bars 52 and 53 which are biased by inherent resilient action to move together to close against their short companion contact bars 54 and 55. The presence of the nose 5l in a projected `position, as shown in Figure 8, causes spring fingers or- co-ntact bars 52 and 53 to be expanded or pried apart from their companion` bars 5 4 and 55, thus opening both switches. The contact bars 52 and 55 form one member' switch and the contacts 53 and 55 form the other memvber switch of the unit at one side of the cam disc.

The wouter portions` of the contact bars are segregated between insulating plates 56 and the entire double switch unit may be carried by and n --att'ached inany suitable way to a carrier member At each rotation of the gears 3l, 32, the single?" 51 erster'ridingv from a plate 58 which plate extends alongside the'arrn 49 of the frame 55. The binding posts or connecting strips for the switches are lindicated at 59 for contact 52, G for 54, I6! for contact 55 and |62 for Contact 53.

Elaringjawsvfi on the spring contact barsji52 f and- V53? extend axially toward and along the nose 5I and are inclined and rounded-,for the-purpose lci better cooperating with a more extensive surface yof the ccnicalvor,conoicial surface of the no??? 55H2' Y l 1 Referring more particularly to Figure 12; the

oppositeplunger 48 moves, in and out between springcontact bars 52 and 6'3;whichformpmember. switcheswith shorter` contact bars 54 an'dJEE. These various contacta bars are4 insulated' .from oneanother by insulating blocks 65. The blocks and..intervening contacts aresecured together in any suitable way :andA aiiiXed to a carrierV mem# ber 61. Ihebindingposts 58, 69; lzandflli are respectively for the-, contacts 62,54, 55 and2S'3'.-.

Further r'referring to4 Figure l2, the manual switch,` ,they handle 2l -of which projects onv the exterior of the casing` lows; V 1, 1, ,Y c "Ihe handle cr. button 2l: isapart of an insulating body ilmcunted, to slide back and forth horizontally in a cradle orsuppcrt 13 suspended from aplate orescutcheon. T4 afhxed by4 appro'- priate fastenings E5 vtothe top ci the container I9. ufthe cradle,y or'support i3: islet in through @10965135.115- in'illeitf'ip^ ofthe casing and',l the handle l,or button 2t of? thfswitch project-s1 up through a slot lila in'. ,thei'p'lat'e 74. The switch body, carricslcontacts la? and 9 movable over selected Xed contacts'B0;.5i,`82,l183, t4', 85 sup'- pcrtedin the cradle '1,3 zand; havingrounded up# f perheads placed in alnement and in juxtaposition. `The contactsla" and 'mi are of awidth to close against two adjacent xed ccntactmembers., The'movablelcontact18 maybe af'iiat disc projected outwardly by .aaspring' at,4 enveloping ,fthGStem 8-1 -of the contact. 8d' which partsare: all mounted: for reciprccation. ina cavity-158i in the insulating'body7.2;',l f j The other ccntactrmeni-her la i'spreferably: in

the form of a ball, the contour of whichI conforms vto the incurved'` surfaces formed between` aremounted foramovemcnt ina cavity Sazofthe 5 The manual` switch isi Capable :of 'rmov'ement' to twopositions, one ofwhich: is. shown in Figurer 12 in which the ball 19 engages xed ,contactsLRU I9, is constructed as fol;-

`and 8| and the other movable cont-act 18 engages 'fixed , contacts 83 and 84'. jIn `the otheror left hand position of the switch thewball 19 ,will en.- i

gage contacts 8| and 82 while the iiat movable `contact 18 will engage ixedr contacts 8,4 and185. ,'fI'husin either position yof the manual switch `ixed contacts 8| and 84i`wil1`be closed; in one `position of the switch with Athe respective contactsBD and 83; in the otherposition of the Vswitch with the contacts 82 and 85. i i i i Referring particularly to ligure 12the `power `is broughtin `through the usual mains, for instance at 550volts A. C.,to the transformer 9| g which steps the current down,` for instancelto l12 `voltsA. C. This isfin `accordance with customarygusageinloom-practice to. provide electric current forthe stop motion ofthe loom. `Such stopmotion includes the stop motion bar $2 and the drop wires, one of which is indicated Aat S3,

,having eyes 94 for the passage of the thread.

lead 55 electrically connects the stop motion bar --directly with the knock-oir handle |00 of the ,loomi Q31' Also inaccordance with standard practice the electromagnet 95 is connected by lead 98 with `the circuitbreaker `switch 9,9.which is connected .in the usual manner to the shifter handle of `the loomwhich controls the operation thereof.

Inacccrdance withythe present, invention, I` Atap, into the existing stop motion circuit by con- ,"necting the stopgmotionb'arby lead I GI tofthe `nxed contact `84 of the manual switch, while the fother lead |02 of` the mainisupply circuit is connected .by une branches `m3 and m4' ywith the @binding posts 68 andv 59 respectively on the op- !:posite controller units.

The p binding ,post 69 at one` side of` the controller is-connect-ed bythe "-Llead |55'with iixed contactv 80 `oi the manualv iyswitch,gwhile the binding post at the other yside of lthe controllerlis connected by the lead |06 to the iixed contact 82" of the manual switch.

isJ grounded as` indicated.

i The piece 91 actuated by electrcmagnet 96 is connected indirectly with the knock-off handle `Il!!! of theloom. This ,member 91.. when thrown up byelectro-magnet 96, comes in contact with 15a: projection ||0 on the lay of the loom. A spring connects the handle |88 `with the fcircuit breaker switch 89.

liifIn operation, the main circuit for operating fthe loom is closed .inthe customary manner by 1 @the shifter lever |55. The loom continues in op- ,leration weaving the` cloth. `,Incident to `this operation the-sandroller I5 is being continuously `rotated and the revolutions thereof incident to lthelweaving of a predetermined length yor yardwage `of cloth isV vcalculated with reference `tothe gear reduction unit whereby after su-ch prede- -'termined lineari amount of cloth has been woven fthefc'am disc 42 will have been Arotated through one-half revolution or through an angular dis- Atance -of `180?.` The cam disc 42 is soltimed that menige point; 431er "the cam will move `out of contact withnie'mvoivedipiunger 41 or 4s at ,-92fwith electro-magnet 96. The electro-magnet V Bscontrols the pieceS'l which is connected inthe `time when the predetermined `yardage, has

been completed. The inner movement of the plunger which follows this release allows the associated switches to close. The diametric opposite point of the cam Idisc engaging the opposite plunger at substantially this time thrusts such opposite plunger outwardly to causeV opening of its 'associated switches at the other side of the controller.

Assuming the parts in the position illustrated in Figure `12 with the manual switch 2| shifted to the right hand position, `with the high point of the cam shoulder 43 beneath plunger` 48 forcing it outward to maintain open the member switches 62, 64 `and 63, 65; the opposite plunger 41 being at va low point of .thecam so that it is forced inwardly by spring pressure of ,the member switches allowing `the `member switches 52, 54 and 53, 55 to close. The closed condition of` these last `mentioned member 4switches however does not affect the operation of kthe loom nor the illumination `of the signal lamp 46 due to the fact that the manual switch has been moved to the right hand position, Ydisconnecting the cir-cuit of member switch 53, 55 at the open xed contact 85 of the manual switch, V

and disconnecting the circuit through the closed member switch 52, 54 through the liixed contact `82 of the manual switch, which fixed contact82 is unconnected with either of the movable contacts 4 V fromthe left hand position, which it`occupied `in the formereventuality, into the right hand position it is seen to occupy in Figure 12, thus opening the previously closed circuits at the xed contacts 82, 85 as just explained.

' Thus in opening these previously closed controlcircuits the loom atten-dant has at his command, through the manual switch,` an agencyto immediately'place the loom in condition for a resumption of` operation without interference from the continued closed condition of the circuits through the member switches 52, 54, and

i In moving the manual switch :to suspend operation of the member switches 52, 54 and 53, 55 at o-ne side of the cam disc 42, the loom attendant simultaneously, and by the same action,

V,places the member switches 62, 64- and 63, 65 at i the opposite side of the cam disc 42 in a potential position to close the loom circuit causing i loom stoppage vand the illumination of the signal lamp 45 at the next completion ofthe required lineal yardage of cloth woven. When the manual `switch is shifted to the right in Figure 12 the 4right hand plunger 48 is in a projected position an-d the member switches 62, 64 and t3l 55 are thus open. Therefore the loom may continue in operation until the shoulder 43 moves off the `plunger 48 `and allows the plunger to move inw64, binding post B8, lead `|05 to the manual switch ,1 toand `through contacts 8E), 'I9 "and 8|, and by lead ma to the lorhp 4o :tudr its ground. Ai the saine timethe other member switch closes a circuit from the transformer secondary through the 'rcllt'breakr Switch 99', leads Q8, 95, Il to th liianu'al switch, through lcontacts 84, 'i3 and 83 thereof, lead IBS, binding post 1|, ln'inloi' switch 63, E5 and binding post't to goifi'rd thus causing the operation of the shifter lev'r H50' to cause stoppage of the loom. i i

- lijslth'e highp'oiht 43 of thei cath disc' 42 'rotates 'past the inner ehu ofthe right hohdpl'iihg'cr' mi, Asuch plunger isdriven radially inward the spring action of the contacts 62 and 63 and switches c2, ai, ce, es promptly close. switches will remain closed until the disc l2 rotates an angularV 'distance to bring the' high point of the cam again' beneath plunger 48. This vvill occur after approximately 180 revolution of the disc lit'. During this long' interval the opation of the looin must be resumed andthe signal light it extinguished. Therefore the closed member switches '62; 64 'and E3, 65 n'il'st', '""`ln`edia"tely after the performance of theirY func'- in stopping the'loornatthe recil'liifeifiI yard'- age'and giving the signal kthereof t'o the operator of this reason for loom stoppage, be rendered' in'- eiective; and this is accomplished by the arrangement oi the manual switch, the handle 2l `of Whichis vexposed externally of the casing [53 for the movement .by thehand of the loom attendant. By shifting su'ch manual switch tol the lefty in Figure 12 the member switches at the right hand side of the controller are simply cu't out of all connection with the loom operating circuit and Vwith the signal lamp circuit.V In doing this the manual switch re-est'ablishesthe poftentiality of the other member *switches at the 'th'cam disc is so constructed that the other plunger is moved to switch openinglp'o? t1 :whereby the loo-m attendant may uhm-v shift over the manual sti/'itch to enable him to e'- establish loom opera-tion and extinguish the sirgnal light. 0 l

The lens or Window 2D in the casingr lil above vthe signal lampv 46 maybe in color, for instance red, to incre eiectivelyv'attifact the attntion of the operator or looni attendant and-the illumin- `.tion of the lamp or of the Window or its lis 2'9 isi an indication to the loom attendant that the vlooln stoppage has occurred b'ecauseuoi tion of the predetelininedlinear yardage of cloth lllvoven rather than because of any other cause of loom stoppage. Such loomy attendant is thereupon put on notice that otherwise the loom is functioning properly and orderly and he( therefrc has no need to examine the loom foi-)possible defects occasioning stoppage.

The extension loom stoppage circuits as Well as the lanp circuit', the controller and inan- Y r9 -irom which`v ohi'y the twolea'ds lill' .and m2 entend, 'the' one to the stop motion bar 92 arid the other to the secondary 01 the transformer 9i by-passing the circuit breaker switch SQ.

Itis olo'viousV that various changes and mdi- Y l'cations may be' made in the details of construction' and `design of the above specic'ally described embodiment of this invention Without departing ,l

lcftfhohd side of the device, which during the hohl the soi-rit thereof, such charities ond ihodijncstioiis; this; iestriciedohly hy the scorie/ot the follovvinigr claims:

What claimed ist' Y Y .Y l. In a Iobin having an electric stop inutili, `esiter'isioh electric mean-s connected to the stop ir'ioti'oh Afory causing'l lojom' stoppage when a o'r'edriyteririiiic'dl out has been wovon arid compris; ihg 'a' controller having means driven from the m and a plurality of `Is"et`s of nioval stvi't'h riieihbers controlled ifi their opening arid closing movements by sa-id last-named means for actuating the electric stop motion, a manual switch in 'circuit `tiith sa'id switch members and the elc"- tiic stop rrifo'ticri for controlling' the ootehti'liiy 'of -tli 'sets f syvit'cli ln'embers to causeY loom stoppage' through the 'stop motion, arid sigel hieahs in circuit with said manual switch'ar'ld said switch mei'nbers. i

2. ih a loom having ari electric stop motioii, rhcah's to Autilize said-stop' ih'otiori for stopping theio'orri when s predetermined out of cloth is Woven comprising extension circuits yfo'rilliifg cohtihuatioiis of the electric stop nichon, a' plurality of automatic switches in said circuits', rrijeahs 'driven by the loom to 'cause opening and permit closing of said automatic switches lternatiy, a manual sviitch 4circuit with the autoln'aticms'witch'es and stop4 motion to select the alftomatic switch which at any given time enerected to' the electric stop motion irl operative relation thereto, signal means, Isl'g'l'i'e'il circuits ther'efo, controller for controlling tl'iel openihg arid closing of the' stop circuits .to potentially cause I''om' stoppage through the electric stop motion; arid a manual switch included in all said 'hits foiselec'tiv'ely governing the' saine.

Iii a lo'oiri having ah electric sto'p" motion a il rotating shalt,` means to stoo thev loom and play a' signal when a predetermined out has completed comprising 'a plurality 'of extensioi'i stop circuits 'connected to the electric' stop 'rhtioh ih operati@ relation thereto, si'ghal inscris-Asiatin circuits therefor, a' controller for controlling the opening anu'closihg'of said' stop '-a"n"d signal Circuits, 'a rduction gear for driving said controller from the`V Toorn shaft, and a mariualswitch included inail said circuits for selectively governing the saine.

45L In a loo having ah electric 'stop` 'motion Y ah'd c nVStatih-gl shalt; mcans to stop the loorri and display' a 'signal Wh'e'n a predetermined cut.has

'-lieencompleted comprising a plurality of extension sto-p circuits connected to" the electric' stop '6; In a' loom having an electric stop motion,

nested itv the; electrica@ moiipiiineperetlve relation theretdsignal means, signalmcircuits for said signal means, pairsof member switches, one switch of each pair in one `of the stop circuits and the other switch ofthe pair in one of the l signal circuits, said member switches being biased to closed position, one switch pair angularly ofiset from another switch pair, a loom-driven con-` troller constructed "and `arranged to open the switch pairs alternately at stated intervals of` loom operation, and a manualswitch in all said stop and signal circuits so constructed and arranged as to control the completionof the stop and signal circuits through each member switch r pair and to open said circuits of any pair after `the same have been allowedby said controller to close. l l t 7. The combination of claim 6, in which the controller comprises movable members having tapered parts to enter between and pry apart springcontacts of the member switches, said spring contacts reacting on said tapered parts to` l eject the members and allow closing of the memspringcontacts to force same apart to open the member switch pairs, said spring contacts reacting on saidtapered noses to drive the plungers inwardly and `allow of closing of the member switch pairs so soon as the high point of the cam passes a plunger. i

HERBERT HUGH HUGHES.

Images