US2544434A - Tube frame for axminster looms - Google Patents

Description

March 6, 1951 o. v. PAYNE I 2,544,434

TUBE FRAME FOR AXMINSTER LOOMS Filed July 28, 1948 IIIIIII \ql llllll iNVENTOR OSCAR V.PAYNE ATTORNEY Patented Mar. 6, 1951 Oscar V. Payne, Leicester, Mass., assignor to Crompton & Knowles Loom Works, Worcester, Mass., a corporation of Massachusetts Application July 28, 1948, Serial No. 41,002.

Claims. (01. 139--10) This invention relates to improvements in Axminster looms and it is the general object of the invention to provide an improved Axminster tube frame.

In Axminster looms the tuft yarns are on spools carried by tube frames which are ordinarily provided with a single row of yarn tubes having their receiving mouths in a single line parallel to the carrier bar of the tube frame. In

such a construction the yarn receiving mouths' jacent tubes in any one row can be double the spacing in the usual tube frame, thereby providing room for enlarged yarn receiving mouths, but the yarn delivery mouths will be arranged substantially as in the usual tube frame to permit use :with ordinary loom parts.

When a rug is unsymmetrical about fa central transverse axis it is usually necessary to wind a different spool for each row of tufts in the fabric, each spool having its color yarns in a different order with respect to the direction of unwinding. This will be true even though the pattern of onehalf of the rug be merely the opposite hand of the other half. It is another object of the present invention to make a tube frame symmetrical about a longitudinal plane passing through the axis of the spool bearings and the yarn delivery mouths, so that the tube frame will be reversible in the transporting chains.

the creel with no reversal of the setting frame. Each pair of spools thus wound is mounted on a pair of tube frames, and one of the tube frames of a pair is used for the first half of the rug and the other for the second half of the rug. Tube wound Under this arrange- I ,ment two identical spools can be wound on the setting frame for each order of yarns drawn from frames previously have had all the delivery mouths of their yarn tubes on one side only of a line passing through the axis of the spool bearings,

an improved method of preparing and applying tube frames to transporting chains when the fabric -has its two halves considered lengthwise there of of opposite hand with reference to a central longitudinal axis. The method includes the steps of winding pairs of identical spools, mounting them on pairs of tube frames reversible in the chains, applying one tube frame of each pair taken in the order in which the pairs are wound to the chains for one half the pattern, and reversing the remaining tube frames end for end and applying them to the chains for the other half of the pattern in the reverse order of winding of the pairs of spools.

With these and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts hereinafter described and set forth.

In the accompanying drawings, wherein a convenient embodiment of the invention is set forth,

Fig. 1 is a side elevation, parts being broken away and parts being in section, of a tube frame made according to the present invention,

Fig. 2 is a vertical section on line 2--2, Fig. 1,

Fig. 3 is a detailed horizontal section on line 3-3, Fig. 1,

Fig. 4 is an end view looking in the direction of arrow 4, Fig. 1, showing the lower part of the tube frame, parts being in section, and indicating one of the transfer clutches in dot and dash lines, and

Fig. 5 is a'diagrammatic view showing a pattern for an Axminster fabric setting forth the advantages of the reversibility of the tube frame set forth herein.

Referring particularly to Figs. 1 and 2, the right and left transporting chains I0 and H, respectively, of the loom are fed intermittently in usual manner and are provided with a group of tube frames which move one by one to a transfer station in the loom. The tube frames, only one of which is shown, are removed from this station by transfer clutches, are dipped and then rolledin, after which they are lifted and the lower ends of the tufts severed by knives. The tube frames are then returned to the chains. These parts of an Axminster loom are of common construction and are not set forth herein. It is thought sufficient to state that there will be a transporting chain at each side of the m and the chains. will be so formed that each can hold either end of the tube frame to be described, To accomplish this result the chains need not be different from those customarily employed.

The tube frame comprises a carrier bar I2 which may be tubular and of the inverted isosceles trapezoidal cross section shown in Fig. 2, thatis, with a relatively broad top l3 and a narrow'bottom l4, and equal inclined side walls l5 and I6. Fitted into the right end of the bar l2 as shown in Fig. 1 is a block I! held in position by screws l8 tapped into the block and passing through walls l and IS.

The block I! has secured thereto an upwardly extending spool bearing to receive the gudgeon 2| of a yarn spool S. A chain engaging member 22 isoffset as at 2353.!ld has a; tongue 24 to pass between the two links 25 of chain ID. A hook 26 pivoted at 21 with respect to the block I! normally hangs over one of the chain links 5 o pp r t ri h nd ofthewtubefreme when the latter is in the chain. The block l1, spool bearing 20, and memberlzare all rigid-with respect to each other and may be welded together or fastened to each other in any other approved manner. Any approvedv.form..ofz spool tension, such as that shown at 28, maybe employed to retard rotation of spool S.

The loom will have two transfer olutches one of which is shown at 30 in Fig. 1. This clutch has a bottom lip 3| to pass under the-adjacent end of the carrier bar I2 and has side wings 32 one of which is shown in Fig. 1.-- These side wings-will be shaped to engage the lower ends of the spool bearing 20 and the member 22,:as suggested in Fig. 4. A screw 33 in the upper endof the clutch is positioned to engage the lowerend of hook 26 and move the latter away from the chain when the clutch moves to the left as viewed in Fig. l preparatory-to. a tuft forming operation of the loom.

-The left end of the tube frame which is supported by chain II is similar to the right end already described with the exception .thatvthe spool bearing 35 is provided with a spring bearing member 36 which permits the spool gudgeon 31 to'be pushed down into bearing relation with respect to the spool member 35. A clutch (not shown) similar to clutch .30,will beemployed for cording to the pattern requirements. The spool will be wound in the usual manner with the tuft yarns arranged side by side and drawnthrough yarn tubes to be describedrsecuredto thepar- In usual tube frames these yarn tubes are in a single plane or row and are arranged side by sideon one side, only ofthe carrier bar and are spaced apart a distance determined by the l e pf. het b ire el.Tlllma 1f the tube frame is madeito we ave an Axrninster rughaving seven tufts to the inch measured across the fabric, theyarn-tubes will be 3/5 apart along thelength of the carrier bar, and the yarn receiving mouths of the tubes will ordinarily be no wider than /7".

Inthe presentinstance I arrange the yarn tubes T in two planes or rows and incline the planes of the rows to each other so that. the upper ends of the tubes of one row are spaced transversely of the carrier bar with respect to the upper ends of tubes of the other row, but the lower ends of all the tubes of both rows willbe 5 v,tudinal axis.61-. aligned much in the same manner as are the lower ends of the yarn tubes of the ordinary tube frame. I v V Referring particularly toFig. 2, the. left hand 45 yarn tubes. a.

5o gill he l i er tee withere ef nee carrier bar by screws 43. The yarn tubes of the group 40 will be staggered lengthwise of the carrier bar with respect to the yarn tubes of the group 4|, so that alternate yarn tubes along the 5 length of the carrier bar [2 will be in one row,

while the intermediate tubes will be in the other row.

;: The result .of this distribution or mounting of the yarn tubes will be to space the tubes in either 10 row double the distance which has been possible with tube frames as heretofore made, as will beapparent in Fig. 1. Because of this double spacing the upper end of each yarn tube can be provided with a yarn receiving mouth which 15 base. width approximately double the gauge of the tube frame. These mouths are arranged in ,two'rows the rows 46 and 47 corresponding respectively to the yarn tuoe rows 40 and 4|. The plates- 42- are secured to the carrier bar l2 so 20 that the yarn tubes of one row will be between the tubes-of theother row-w re:

:The yarn mouths are'substantially circular, see

Fig. 3, althoughldonot-wish to be limitedlt'o this particular shape, but when the mouthis 25. round itprovidesa maximum -area..for the. en-

30 or, may bemade .of-ga seamless, tube cylindrical in. original formandethen rolled and shapedzto provide the mouth, and a;yarn: passage 48.

The lower end of; each yarn tube;has -a yarn delivery mouth; theeya rn tubes of row :40 havhavedelivery-mouthsil. -Themouths-50 and 5| are alignedlengthwiseof thercarrien bad. afS-shown F m uths e a a e which p s eshr ue h pathefi eql b a n .21

40 a d and hee rekle u in l ax ofpth ar a e-end .t -tubeet em is s mme r ee about a. vertical axis as viewed in Fig; -2. The r s w l efl idet V e twqn e e I 5. l nd-1 lee ea es eeti l t th e =fl nd .!.:.e a r su t 9 tt ge ie etf o e tube .ffm them a t la i iti a e e s set a t e $1;; er9 :9th b PPQRfiE1 by: ei -theme!! or chain II. The advantage of this r ersibili ty which having aelarge central figure hf WW he ne he reem- 0t e-.-di mend. metric abouticentral;-,transverse axle-indicated deali gth ar e lflthen g in -s ows a fabricfabric, is a,-second.figure;,6'5; shown as a triangle.

h et W iehtbeil we r t r tsa thi dure t 5 fte-tfie afi 'b tn e opposite hand and nverted The .uppen right hand and lower left handlcornersgflme fabric 50 are left plain andlunfigured so tha't the ,fabric .50 is. notffsymmetrical.about eithermthew. 2 6r5t15elntfel ee ih 'e axi ...in 9 edy-li .9 lheppperand lower halves of the fabric are iof. opposite handwith referenceto the longi .To. illustrate the previously. mentioned methqd jwhen'used to weave. a. patte'rnsuch as thatshown fat 5]], two 6116s's .rows Tof tuf ts at equal. distances from axis}.v 62. will be. selected for. consideration.

row 40 of yarn tubes extends downwardlyto the ,Zolltassumedthat.thegbpperflframej'hshowigln right from the inclined side wall 15, whilethe other row 4| of yarn tubes extendsdownwardly to the left from the inclined side .walllfi. JfIhe yarn tubes are secured to carrier. platesfi twhicn .marhe iast aedtefhe s. respective'sideeef? t e 1 5%} Fi'gf'2 is one of a pair of identical emira s memb ramma: ud ti e e et t be frame FL is ii -such positio -thatits,. yarns are arrang d te evfe tw n lie .tage .1? greet 5 62. frame FR is reversed and in its reversed position it will supply the yarns for the cross row 68 of tufts also at distance a from axis 62 Each of the spools for the particular sections shown at lines 68 and 69 in Fig. 5 will have a central group 16 of distinctive yarns corresponding to the diamond shaped figure 6i, and near one end thereof will be another group H of distinctively colored yarns for the triangular figures 65 and 66. Tube frame FR may be considered to have its sections 10 and H arranged in right hand order, while the sections it and H of tube frame FL are in left hand order.

Only one pair of tube frames has been described in connection with Fig. 5, but it will be understood that similar relations will exist for all the other pairs of tube frames. The pair for the topmost and bottommost rows of tufts of. pattern 60 will be at the ends of the series of tube frames in the trans orting chains, while the pair of tube frames for the two rows of tufts at the center, one at each side of axis 62, will be side by side in the series. The members of the other pair of tube frames will be separated in the chains according to the distance between their respective rows of tufts in fabric 60.

When the series of spools is prepared for weaving the fabric Bl] there will be half as many kinds of spools with respect to color or pattern distribution of yarns as that needed for weaving the fabric, but there will be a pair of each kind, and for each row of tufts of one hand in one half of the fabric one member of a pair will be used, and for the corres onding row of opposite hand in the other half of the fabric the other member will be used. The pairs of spools are arranged in the order in which they are wound on pairs of tube frames. and one or the first member of the first pair of frames is put in the transporting chain, then one or the first member of the next pair, etc., until the first member of all the pairs of tube frames for the first half of the fabric 60, the upper half in Fig. 5, for instance, are arranged. on the transporting chains in the order of winding of the pairs of spools. Then the second or remaining tube frames of the pairs are turned end for end and put in the chain in reverse order of winding. One half of the tube frames, that is, the first members of the pairs, will be attached to the chains in positions corresponding for instance to the tube frame designated at FL, while the other half of the tube frames, the second members of the pairs, will be in positions suggested by the tube frame FR.

It will thus be seen that it will not be necessary to wind a different spool for each .tuft of rows throughout the whole length of the fabric 60, and it will suffice if only half as many threadings of the setting frame are used as would. be necessary if the tube frames were not reversible in the transporting chains.

' From the foregoing it will be seen that the invention sets forth a tube frame having two rows of tuft yarn tubes arranged in such manner that each yarn tube can have an enlarged mouth for the passage of large yarns or knots in the yarns. This result is accomplished by having every other yarn tube on one side of the carrier bar l2, and the intermediate yarn tubes on the other side of the bar. While the yarn receiving mouths are in two different rows preferably parallel to the carrier bar, the yarn delivery mouths 50 and. 5| are all aligned so that they At the bottom of Fig. 5 the similar tube will be presented to the nose board of the loom and the cutting mechanism in the same manner as under previous practice. The distance between adjacent receiving mouths in either row is double the distance between adjacent delivery mouths. Furthermore, it will be seen that the tube frame is symmetrical about a vertical longitudinal plane passing through the axis of the spool bearings, the longitudinal central axis of the carrier bar l2, and the aligned delivery mouths 50 and 5|, and for this reason the tube frame can be reversed in the transporting chains [0 and H. Because of the reversibility of the tube frames in the chains a non-symmetrical pattern, such as that shown in Fig. 5, can be woven from tube frames the spools of which are wound with half as many threadings of the setting frame as would otherwise be necessary, and with no reversals of the setting frame, and this face simplifies the method of preparing tube frames for assembly in the chains.

Having thus described the invention it will be seen that changes and modifications of the foregoing specific disclosure may be made without departing from the spirit and scope of the invention.

What is claimed as new is:

1. In an Axminster tube frame, a carrier bar, spool bearings on the ends of the bar, the latter having a cross section in the form of an inverted isosceles trapezoid symmetrical about a plane passing through said bearings and the longitudinal axis of the bar, the sides of said bar being inclined downwardly and toward each other, and a row of yarn tubes on each of said sides, each yarn tube having a yarn receiving mouth and a yarn delivery mouth, said rows being inclined downwardly and toward each other and having the delivery mouths aligned and in said plane.

2. In an Axminster tube frame, an elongated carrier bar, aligned spool bearings on said bar, two rows of yarn tubes, each tube having a yarn receiving mouth and a yarn delivery mouth, and means mounting said rows of tubes on the bar with all the delivery mouths aligned and with the receiving mouths of the tubes of one row spaced transversely of the bar from the receiving mouths of the tubes of the other row, said delivery mouths lying in a plane passing through the axis of said bearings and the central longitudinal axis of the carrier bar.

3. In an Axminster tube frame, an elongated carrier bar, aligned spool bearings at the ends of said bar, two rows of yarn tubes, each tube having a yarn receiving mouth and a yarn delivery mouth, and means mounting said rows of tubes on the bar obliquely with respect to each other and with all the delivery mouths aligned and in a plane passing through said bearings and the longitudinal axis of the bar and with the receiving mouths of the tubes of the two rows symmetrically placed on opposite sides of said plane.

4. In an Axminster tube frame for a loom having clutches to support the tube frame, an elongated carrier bar, and yarn tubes secured to opposite sides of the bar and having aligned yarn delivery mouths under the axis of said bar when the clutches hold said tube frame in upright position the delivery mouths being located in a vertical plane passing through the axis of said bar and said clutches.

5. In an Axminster tube frame for a loom having clutches to support the tube frame, an e1on-- gated carrier bar, and yarn tubes secured in'two magm s ,rows on oppositg sides of the'evbar. and having aligned yarn delivery mouths, said-rows of yarn tubes beingv symmetrical-about a plane passing through the clutches :and axis of the bar. so that -s a id;delivery-mouths will bear the samerelaftion transverselyof the'bar if the tube frame is turned end for end and placed in the clutches.

, 6; In an; Axminstertube frame for a loom having clutches; to support the tube frame, an'elongated-,carrier bar; andyarn tubes secured in two rows on opposite sides of the bar and having aligned yarn delivery mouths, said yarn tubes being symmetrical-about a plan passing through the-clutches and axis of the bar so that when the tube "frame is in one position in said clutches the delivery mouths :will occupy one position relatively: to-a given plane passing through the clutchesand mouths and when the tube frame is turned end -for5endand reversed in said clutches said delivery-mouthsi-will occupy the same posij tion relativelyto said given plane. 7

- 7. In an Axminster tube frame for a loom hav ing, clutches to support the tube frame, the tube frame having aligned yarn delivery mouths at ,th glower ends of yarn tubes on a carrier bar 7 when the tube frame is supported in upright position by said clutches, the tube frame being symmetrical about a plane passing through said aligned mouths and the centrallongitudinal axis of, the carrier bar to be reversible end for end in theclutches withoutchanging the position of said mouths with respect to said plane.

v8. In an Axminster tube frame, a carrier bar, aligned;spoolybearings on the ends of the bar, the lat-ter havingside walls oblique relatively to each otherandsymmetrically placed with respect to a plane passing through said bearings and the central longitudinal axis of the bar, and two rows of-Tyarnetubes, oneforeach ofsaid side walls, the

yarntubes having yarn delivery-mouths all of bar, aligned spoolbearings onsaid bar,rthe axis lof saidrbearings being parallel to said axis of the bar v and twov rows of yarn tubes; one for-teacho'f said,.side.walls,. said rows being. inclinedfdown wardlyvand toward each other, the yarn tubes having yarn delivery mouths all of which are aligned and in a plane passing through said axes.

osoAR vQ PAYNEY? REFERENCES or r121) The following references are of record in the file of this patent:-

UNITED STATES PATENTS 317,193 Great Britain Aug. 15, 1929

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