US1997047A - Support for tube frames - Google Patents

Description

April 9, 1935. E. .1. DACEY 1,997,047

SUPPORT FOR TUBE FRAMES Filed Jan. 29, 1934 snuentor 6: dwau'd J. Dace Q. tornegs Patented Apr. 9, 1935 r I 7 UNITED.- STATES PATENT OFFICE I SUPPORT F012. TUBE FRAMES Edward J. Dacey, Philadelphia, Pa., assignor to Crornpton & Knowles Loom Works, Worcester, Mass, a corporation of Massachusetts Application January 29, 1934, Serial No. 708,872

:10 Claims. (Cl. 1397) This invention relates to improvements in Axminster loom having a frame I!) and a cam looms for weaving relatively wide Axminster shaft. Hon which is mounted a cam plate I2. fabrics, particularly those having the pattern A cam l3 on the plate coacts with a lever l4 occurring on the back. pivoted as at IE to a fixed part of the loom- A 5 p In looms ofthis type tubeframes arepresented. spring l6 holds .the lever innormal position to be 5 v one at a time to tuft forming position. The yarn engaged by the cam and a stop screw ll limits tubes which. project from the frames extend movement of the lever.

through thebinder warps and are moved from Extending upwardly from the leveris a rod '|8 a rearwardly inclined to a substantially vertical connected to a lifter lever l9 pivoted on stud 20 position during the wiping-in operation of the carried by a stand 2| secured to the arch 22. vAn 10 tube frame. The tubes may also engage fyarn advancing lever 23 and a lifter arm 24 are also spacing plates when the loom is equipped to'weave pivoted on the stud .20. A lifter pin25 vertia fabric wherein the pattern appears on the back. cally adjustable on the lifter lever I9 is positioned In such an instance the friction between the tubes to engage the under side of the arm 24' to elevate and plates is likely to produce a rearward bendthe latter. A link 26 connects the arm 24 and a 15 ing of the tube frame the effectof which is to second link 21 pivoted at 28to the lower part of the produce a defective row of tufts. advancer lever 23. A brace 29 is secured to" the In very wide Axminster looms it is customary lower link 21 and may be of the general form to use a tube frame carrier extending across the shown in Fig. 1.: A spring 3|! surrounds arod 3| loom to prevent sagging of the tube frame during which passes through lug 32 on lever |9 and a 20 the pulling-01f operation. The carrier lies in stop 33 on lever 23 which is held normally against; front ofthe back knife frame and its horizontal the lever I9 by the spring; Adjustable nuts 34 dimensions in cross section are not enough to on the rod 3| receive the thrust of the spring. prevent all of the rearward bowing incident to In the operation of the parts thus far described the wiping-in. the cam l3 will depress rod 8 and thuslower 25 It is an important object of my present inventhe left end of lever l9 as viewed in Fig.1. This 'tion' toprovide a form of brace to be used'in effects a compression of spring 3|! which acts connection with the carrier for the purpose of through rod 3| torock the advancer lever 23 and preventing the latter and also the tube frame move link 2'! forwardly yieldingly. The pin 25 from bending rearwardly during the first part engages and raises the arm 24, the latter causing 30 of the tuft forming operation. This result I may link 26 to lift the brace 29. The latter'is thereachieve by using a brace which is presented to the fore given a forward and upward movement and carrier at the proper point in the cycle of the. the de e and me O ese v meh s n b loom and effectiveto follow the carrier during controlled by the cam I3. The cam may have an 7 35 the Wiping-in operation of the tube frame. initial rise 35 leading to a slower rise '35 which 35 With these and other objects in view which will terminates i a Second p I'iSB A dwell' appear as the description proceeds, my invention 8 ay be e p d 110 1 1- t brace during h resides in the combination and arrangement of latter pa t f t ft f n p ra i parts hereinafter described and set forth in the A small bracket 40 on arch 22 is slotted as at 40 claims. 4| to afford adjustable support for a roll 42. The 40 In the accompanying drawing, wherein a, latter enters a notch 43 in'the bottom of. link 27. venient embodiment of my invention is set forth, Th -matt r thus far d s rib d may be s m ar t Fig. 1 is a side elevation, parts beingin section, t at s wn in my 0 -p ap a Serial of the upper part of an Axminster loom'having 45 my invention applied theret Extending across the loom is a carrierbar 45 45 Fig. 2 is an enlarged transverse section through which y be formed of front d b ect ons the tubeframe and carrier, 46 and 41, respectively. These sections may be Fig, 3 is a view imil r t portion of Fig 1, b t secured together at points throughout their length with the successive positions of the carrier and d y have forwardly projecting from t p ts tube frame indicated'diagrammaticadly, thereof a foot or holder 48 on which rests the 50 Fig. 4 is a top plan view on an enlarged scale bar 49 of a tube frame T. As shown herein the looking in the direction of arrow 4, Fig. 1, and Section a hav a downw rdly and forwardly Fig. 5 is a fragmentaryrear elevation looking inclined part 50, while the, rear section Almay in the direction of arrow 5,, Fig. 2. have a similar section 5| behind and spaced from Referring to the drawing, I have shown an the part 50. i 55 Fig. 4 shows means for supporting one end of the carrier bar, but it is to be understood that the other end of the loom has a similar mecha nism. A tube frame unhooking bolt 60 is slidable in a movable bearing 6| by means of an arm 62 and is themeans by which the tube frame can be unhooked'from the usual transporting chain notlshown. This slidingbar 60 takes the place of the ordinary clutch and performs certain functions of the latter; As shown in Fig. 1 arms 63 are movable about an axis 64 fixed about the loom by means of a lifter rod 65, and these arms support the carrier and thebeari-ngs :51. The rods 65 raise and lowerithearms63 and there fore the carrier for eachfltuft forming .cycle'gof The carrier bar together with the operations. mechanism which operates may if desired operate substantially as set forth in patent to Robertson No.1,604,318. V v

As shown in Fig. 1 the reed R cooperates with spacer plates 'P which lie. under a cloth board B having hooks The hooks assist=in the .formationof the .tuft resulting from the bending of the .yarn Y projectedsfrom :the tube frameiduring. the weaving .operation I and ithev tubes 10 extending downwardly from the tube frame are wiped in through the upper. and lower binders 'B' and B", respectively, (and-move .forwardly.,between thepIatesP.

.Themanner. of operating the tube frame mayshowninsdotanddashlines,.is raised toa point above the hooks ,so that the yarn .can be cut by instrumentalities: not shown herein and where the yarn. together with the shots-"of :fillingnot shown herein canbe'moved over therzhoolrs vto form the tufts bymeansof the reed-R. The plates Pmove forwardlyto accommodate theadvancing movement ofthe reed and maybe if ,desiredin alignment with the reed to provide guide; aisles for the yarnY. V

' The particular mechanism-shown herein -fo assistinginthe formation of the 'fabricvhaving the pattern. shown on the back, that is, the plate P and hooks-3H, may be wrelatedzand operated, as shown in co-pendin application filed .byfiobentson andsmyself, Serial No. 575,190. "It is.-.suffi0.ient for the purpose of :themresentanillication to state fithat the plates P offer frictional resistance :to the yarn tubes :10 with theresultthat theltubezframe and the carrier tend tob0w rearwardly;-or tothe wieft as viewed in :Fig. 3, due to the wiping-in operation of. the tubeaframep In my aforesaid application Serial No. 696,261

I have shown mechanism fordirect engagement withrthe tube frame to prevent this bowing; ibut :in very wide looms the sagging of the tube frame due to its weight can best-:bercorrected'by the :use of thecarrierbar 45 asset ;.f;orth hereinand }my present invention relates to means for bracing this bar. I v

'In carrying mypresent invention into effect I remove a part of the rear wall5l of the-back-secsection 46. The angle section, which has a horizontal part 82 and a vertical part 83, is adapted for engagement with the forwardlyjextending finger 84 of the brace 29. This fingerislong enough to extend through the window and mm engagement with the vertical wall 83 during the wipingin operation so that as the tube frame moves towardithevertical position shownin dotted lines in Fig. 3 the finger will ,bein engagement with the angle section and force the same forwardlyl The effect of this is to overcome any tendency to bend the carrier which may be transmitted :throu gh.the-llatter and the. yarn tubes by fric .tional gen agementnwith the platesP.

Thelevenlflll'drivenbyrod I0 I operates thrust rod ll l connected to the carrier support I03 to give the carrier and the tube frame it holds the desired wiping-in -motions, substantially in the usual .mann; er.

After the wiping-in operation has been com-Y function 1may bezomittedifflt is found :that the as carrierb'ar is sufliciently strong to resistsagging of the tube frame due togravlty. i To this extent it should be noted i that 'the part'played by :the' pin attending to-raise-the armllis not anessential partof' the present invention and mayibemdispensedzwith-shouldthe carrier barbe "adequatelto overcome. the effects of gravity on the barrM;

Where .a single ibracezflis used, .the coacting bracket 58;! will be' near the centerof the'tube frame, :butI do not wish to'rbejlimitedto. a -single brace. The roll 42 assists in causing :the sflnger 84 to maintain bracing relation *withthefbracket '81 during thewipingeinoperation. .A tongue 90 on theicarrier, see Fig. 2,-entersa-loop9l on :the tubeframe to :hold .the latter from falling. :forwlardlyp mpening n in :thelcarrier receives :the loopas the :tube'frame :moves. down on theicarrier.

From the foregoing :it willbe seen that :Ilhave provided. :means -for preventing :b'ackward lbOWiXIg of the tube frames on very wide Axminster looms, the-mechanism accomplishing this result including a; known :form of carrier, bar which is :modified so'that it canreceivea forwardthrustduring 4 i-the-wipingl-in operation to prevent bowing'ofithe tube frame. While the angle-section kon-thecarrier bar has ;been shown ,as a :separate :piece, yet

:I am, notlimitedtothis construction, :inasmuch .as-ariy urfa 'p sitionedtocQntaQt with the:fl.n-

gory and carried by thecarrierzbar will carry out the spirit of-the invention. Bythegarrangea ment-set forth hereinthe tube 'frame's can be kept in their, standard form and the carrier bar alone modified to prevent rbackwardbending. Further more, by having the angle .seotionaon the forward wallof the section 46 the section is entirely in hereindisclosed, but whatI claimis:

1. In an Axm inster 400m, av tubeifran'ie from which project yarn tubes, a carrier; extending across the loom and supporting .thetubeirame throughout substantially the whole length thereof,

means to give the carrier and tube frame wipingin movements, yarn guiding plates between which the yarn tubes pass during the wiping-in operation, the guide plates engaging the tubes and thereby tending to bend the carrier and tube frame rearwardly, and means to prevent rearward bending of the carrier and tube frame.

2. In a pile fabric loom, a tube frame having yarn tubes, a set of guide devices through which the yarn tubes pass and which engage the tubes and thereby tend to bend the tube frame rearwardly, a carrier extending across the loom and supporting the tube frame, and a brace to enter the carrier to engage a rearwardly facing surface and prevent the carrier and tube frame from bending rearwardly under influence of the guide devices.

3. In a pile fabric loom, a tube frame having yarn tubes, a set of guide devices through which the yarn tubes pass and which tend to bend the tube frame rearwardly, a carrier extending across the loom and supporting the tube frame, said carrier being formed of front and back sections, and a brace to transmit a force to the front section tending to prevent rearward bending of the tube frame and carrier under influence of the guide devices.

4. In a pile fabric loom, a tube frame having yarn tubes, a set of guide devices through which the yarn tubes pass and which tend to bend the tube frame rearwardly, a carrier extending across the loom and supporting the tube frame, means on the carrier defining a rearwardly, and also a downwardly facing surface, and a brace positioned for engagement with the rearwardly facing surfaces and tending to prevent rearward bending of the tube frame and carrier and also effective to engage the downwardly facing surface to prevent sagging of the carrier under action of gravity.

5. In an Axminster loom, a tube frame, a set of guide devices through which the yarn tubes pass which tend to bend the tube frame rearwardly, a carrier extending across the loom to support the tube frame and movable to give the tube frame wiping-in movements, and brace means to engage and followthe carrier and. prevent rearward bending of the carrier and tube frame during the wiping-in movements.

6. In a pile fabric loom, a tube frame having yarn tubes, a set of guide devices through which the yarn tubes pass and which tend to bend the tube frame rearwardly, a carrier extending across the loom and supporting the tube frame, means yarntubes, a'set of guide devices through which the yarn tubes pass and which tend to bend the tube frame rearwardly, a carrier extending across the loom'and supporting the tube frame, means defining interconnections between the carrier and the tube frame to prevent movement of the tube 7 frame forwardly with respect to the carrier, said carrier having provision for engaging the tube frame and preventing rearward bowing of the said frame, and means to prevent rearward bowing of the carrier to thereby prevent rearward bending of the tube frame. I

8. In a pile fabric loom, a tube frame having yarn tubes, a set of guide devices through which the yarn tubes pass and which tend to bend the tube frame rearwardly, a carrier extending across the loom and supporting the tube frame, a tongue on said carrier, a strap on the tube frame which the tongue enters to prevent the tube frame from moving forwardly with respect to the carrier, the

latter having provision for preventing rearward bending of the tube frame, and means to engage the carrier and prevent rearward bending thereof. 9. In an Axminster loom, a tube frame, a set of guide devices through which the yarn tubes pass which tend to bend the tube frame rearwardly a carrier extending across the loom and supporting the tube frame throughout the length thereof, means to give the carrier and the tube frame carried thereby wiping-in movements, and means movable relatively to the carrier during the wiping-in movements to engage the carrier and prevent the latter and tube frame from bending rearwardly during said wiping-in movements.

10. In an Axminster loom, a tube frame, a set of guide devices through which the yarn tubes pass which tend to bend the tube frame rearwardly, a carrier extending across the loom and supporting the tube frame throughout the length thereof, means to give the carrier and the tube frame carried thereby wiping-in movements, and means separate from the carrier and movable relatively thereto during the wiping-in movements to engage the carrier and. prevent the latter and tube frame from bending rearwardly during said wiping-in movements.

EDWARD J. DACEY.

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