US2577267A - Yarn guard for axminster tube frames - Google Patents

Description

' Dec. 4, 1951 O. V. PAYNE YARN GUARD FOR AXMINSTER TUBE FRAMES Filed July s, 1948 INVENTOR OSCAR V. PAYNE AT T O R N E Y Patented Dec. 4, 1951 .YARN ,GIUARD FOR .AXMINSTER TUBE FRAMES Oscar Payne, "Leicester, Mass, "assignor Ito Crompton ;& .Knuwles Loom Works, Worcester, Mass a corporation of Massachusetts Application July 3, 1948, Serial No. 36,984

:9 Claims. 1 v

invention relates to improvements in tube'frames for Mm inster looms and it is the general object o'f' the inventiontoprov ide means to facilitate the entry of thick yarnsand any Fkn'ots which-maybe tied in them into the yarn tubes on the tube frame.

The usual Axminster tube frame is made with a carrier bar on which a yarn spool is rota'tably mounted, and=a set of yarn tubes is secured along -one edge of the' bar to receive the =yarns from I the spool. In the past it has been customary to make the yarn tubes with yarn-receiving mouths no wider than the space assigned to the tube along the length of the carrier bar, and because of this condition it is diflicult to use thick yarns and-also difficult for knots in' the large yarns "to enter the mouths of the yarn tubes.

It is an important object of the present invention to construct the yarn tubes, in such manner thatthe'ir -=mouths will be considerably wider than the spaoe assig-nedto the tubelengthwise cf the carrier bar, and arrange the mouths "at least two. rows at diiTerent-distances from the :carrier bar. In one form of the invention the mouths may be substantially circular bu't shaped in such a way as 110 have a small notch in their "peripheries which may interfere with entrance of -a'knot into the :mouth.

i It is a further object of the invention to prowide *a; guard or the like which extends over the motches in such position as to prevent knots in the yarn "from entering the notches.

When large yarns are used it is desirable that adjacent-threads be spaced or separated from each other at the points where they enter their wespective tubes-and it is a further object of .the invention-to provide a =yarn separator ex- .tendingilover the mouths of the tube and 10- .acated sin such a position as to .divide the ryarns two :planes pr sheets. When the yarns are thus separated they can turn-more easily my themselves tofacil-itate entry of :a' knot :into the mouththan would :bethe case :if all .the threads were .i-n-ia :single sheet. "The guarding and sep- .arating ifunctions can .both be performed by ;a

single part, such as a wire, extending Di/.91 :the

.yarn :tubes.

a With these and other objects in :view whic. will appear as the description proceeds, the in- ;iiention resides in therombination and arranges :ment of parts hereinafter described and set iforth.

-' ;In:the.acconipanying drawingsywherein-aconsgenientiembodimentof theinventionjs-set ifortlr;

Fig. 1 .is a front elevation of one nnrizofga .72 tubenframe made according :to the present in :vention,

"Fig. :2 is :a vertical section on line 2--2 of .'-Fig.

Fig. .3 *is a detailed plan view looking in the direction of arrow 3, 'Fig. 1,1and

Fig. 4 is anenlarged fragmentary elevation :in the direction of arrow .4, Fig. '2, parts being broken away.

Referring particularly to Fig. 1, the tube frame :includes in its construction a carrier'bar .I'fl which ,may be rectangular and tubular. Extending upwardly from .the 'carrierbar is a spool hearing I liorarspool :12 on which are wound the tuft forming yarns Y. The carrier bar also has "secured thereto a :bracket 13 to engage the loom transporting chain l4, and a hook I5 is provided .to extend :over one of the links of the chain for :-.the purpose of supporting the tube frame when .itz-is-in the'loom. a

The carrier bar has a i-front wall 20 to which are secured yarn tubes designated generally at T. "These .yarn tubes are aligned in the direction 'of-the length .of the carrier bar as suggested @in Figs. 1 and i2, and each tube has a yarn delivery'mouth 2.1 at the lower end thereof. "For :convenient manufacture the yarn tubes are grouped together in small yarn tube units A ifor attachment to bar J9. Each :unit, as shown in Fig. 1., includesa flat plate :or supporting :rnemaberJZZ secured to the ifrontwall 2.0 by screws-2L The yarn'tubes "T :are .welded :to the plate 22 in :any approved manner, :as. by soldering or weldiing. T11: is to be understood that anumber o! the :units are secured .side by side :to bar Ill along (the length thereof. "The'yarns Y extend dOWIlWZJ'dIYTfIOHi the spool 12; :andpass through the tubes T and project :below theibottom of :the .latterfinusual-manner.

Theimatter'thusfar described-maybe of-iusual construction and of itself :forms :no smart of the present invention. The tube frame when detached from the transporting chain 14 willdae controlled by mechanism not shown to dipthe lower ends aofthe yarns and yarn tubes through ,the'warp sheds .of :a loom. The tube frame :is :then brought to an erect position such as :shown in Fig. ,2 with :the lower -;ends of the yarns bound in the fabric, after which the tube frame :is raised to pull 101T -.eno.ugh yarn for the :next row .of tufts which it forms. During this pulling-oil. zeperation then-spool S turns in 5a iCQUHl'IEI -LCTOCK'.

-wise-.direction as-yiewed in Fig.2, :andzthe yarns which may be tied in the yarns are required to enter their respective tubes.

In carrying the present invention into effect the yarn tubes are formed with yarn receiving mouths the width of which measured in the direction of the length of the carrier bar is considerably greater than the space assigned to the tube. In order that the mouths thus enlarged may not interfere with each other they are arranged in two rows at difierent distances from the carrier bar.

As shown in Fig. 3 every other yarn tube has a yarn receiving mouth 35 the center of which is spaced an appreciable distance from the carrier plate 22. The intermediate tubes are provided with similar mouths 3! which are located close to the plate 22. The mouths thus alternate with each other with respect to their distances from mouths.

the carrier bar and it is in this way that each yarn 7 tube can be provided with a mouth much wider than has been possible under prior practice.

The mouths are preferably of substantially circular form with their centers arranged in two lines or rows parallel to bar Hi. -Each tube has a passageway therethrough defined between side walls 32 and front and backedges 33 and 34, respectively. The walls of the tube extend upwardly from the deliverymouth 2| and their upper ends are shaped to provide the mouths 30 and 3|. The side walls corresponding to the mouths 30, for instance, maybe pinched together along the rear edge 34, as indicated at 35, while the front part of the walls will be expanded by an appropriate tool to form a substantially circular mouth. In the formation of the mouth, however, a small notch 35 is likely to develop as a small part of the mouth into which a knot in the yarn may be caught.

The large and small parts of each mouth are at different distances from the carrier bar and the mouths overlap in a direction parallel to the bar, as is apparent from Figs. 3 and 4.

In similar manner the yarn tubes corresponding to the mouths 3| have the forward parts of their side walls pinchedtogether as at 40 while the rear part of the walls are expanded to form a mouth which lies close to the plate 22. The formation of mouth 3| may also produce a notch 4| similar to notch 36.

In order to preventthe yarns Y from being caught in the notches 36 and 4| a separator or guard is provided extending over the tubes T in such position as to prevent the'yarns from entering the notches. A convenient embodiment of this feature of the invention, as shown in Figs. 2 and 3, comprise a wire 45 which is substantially parallel to and intermediate the two rows of yarn mouths. Wire 55 may be welded or soldered to certain of the tubes T as at 46.

The wire also serves as a separator to divide the yarns Y into front and back sheets 48 and 49 as shown for instance in Fig. 2. The yarns of the rear sheet pass between the separator and the carrier bar as they enter their mouths, while the yarns of sheet 48 pass to the opposite side of the separator. The latter therefore separates adjacent yarns to give them more room in which to turn if necessary. The guard and separator will be substantially the same length as the plate 22 as indicated in Fig. 3.

If a knot should approach its mouth the guard 45 will deflect the knot away from the corresponding'notch. Thus, if there is a knot in one of the yarns of front sheet 48 the guard 45will deflect the knot forwardly away from the corresponding notch 36, and if aknot would be in'one of the 4 yarns of the rear sheet 39 the guard will prevent it from entering the associated notch 4|. The wire of which the guard is made may be of small diameter so that it will not materially reduce the area of the mouths.

The guard 45 as shown for instance in Fig. 4 is associated with a particular form'of mouth which may have an objectionable notch therein, but so far as certain features of the invention are concerned the particular shape of the mouth is immaterial, since the guard will serve as a separator to divide the yarns into two sheets whatever the shape of the mouths.

From the foregoing it will be seen that the invention sets forth simple means for preventing yarns from becoming caught in the yarn tube The guard 45 not only serves this purpose but also divides the yarns into two sheets in such manner that adjacent threads are located on opposite sides of the guard and enter their mouths at different distances from the carrier bar In. The guard may be in the form of a wire which is secured to the tops of the yarn tubes and is a part of the yarn tube unit A. As shown in Fig. 3 the separator and guard 45 is so placed that it prevents a yarn in any mouth from enter ing the notch corresponding to the mouth. While the invention has been shown in connection with small groups of tubes on the carrier plate 22 it is not thus limited, since it will be within the spirit of the invention if yarn mouths as shown herein are formed on tubes secured in any approved manner to the carrier bar l0.

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

1. A group of yarn tubes for an Axminster tube frame, each tube having a circular yarn receiving mouth, the mouths having their centers arranged in two rows and having notches formed incident to the manner in which the mouths areformed, and a yarn guard extending over'said tubes in position to prevent a yarn in any mouth from entering the notch corresponding to the mouth.

2. A group of yarn tubes for an Axminster tube frame, each tube having a circular yarn receiving mouth, the mouths having their centers arranged in two rows, each mouth having a notch in the periphery thereof, and a yarn guard extending over said tubes in position to prevent a yarn in any mouth from entering the notch corresponde ing to the mouth.

3. A group of yarn tubes for an Axminster tub frame, each tube having a yarn receiving mouth and the mouths arranged in two parallel rows, and a yarn separator and guard over the tubes and intermediate said rowsand comprising a wire fastened to said tubes. 1

4. 'In an Axminster tube frame having a carrier bar, a spool rotatably mounted on the carrier bar and having yarns wound thereon, a group of yarn tubes mounted on the carrier bar and having yarn receiving mouths arranged in two rows parallel to and at difierent distances from said carrier bar, and a yarn separator and guard comprising awire substantially parallel to the carrier bar extending over the yarn tubes intermediate said rows of mouths, partof the yarns leading from the spool to one side of the separator between the latter and the carrier bar and the remainder'of the yarns leading from the spool to the opposite side'of the separator, 'l. .j I f 5. In an Axminster tube frame having a carrier bar, a spool rotatably mounted on the carrier bar and having yarns wound thereon, a group of yarn tubes mounted on the carrier bar and having yarn receiving mouths arranged in two rows parallel to and at different distances from said carrier bar, and a yarn separator and guard comprising a wire substantially parallel to the carrier bar extending over the yarn tubes intermediate said rows of mouths, alternate yarns entering their respective mouths on one side of the separator between the latter and carrier bar and the intermediate yarns entering their respective mouths on the opposite sides of the separator.

6. A group of yarn tubes for an Axminster tube frame having a carrier bar, each tube having a yarn receiving mouth formed with a relatively large part and a relatively small part, said large and small parts of each mouth being arranged transversely of said bar, the large parts of alternate. mouths being adjacent to the bar and the small parts of the intermediate mouths being adjacent to the bar, said large parts of the mouths being arranged in two rows parallel to and at different distances from said bar, and a guard extending over said mouths intermediate the rows of said large parts of the mouths eifective to prevent a thread in the large part of any mouth from v moving into the small part of the mouth.

7. An Axminster tube frame provided with a carrier bar supporting a single row of aligned yarn tubes each of which has a yarn receiving mouth formed with a relatively large part and a relatively small notch part, said parts being at difierent distances from the carrier bar and the large parts of the mouths being arranged in two rows at different distances from the carrier bar, each mouth having the small notch part thereof overlapping the large part of an adjacent mouth in a direction parallel to the carrier bar, and a guard intermediate said rows of large parts of the mouths effective to prevent a thread in the large part of any mouth from moving into the small part of the mouth.

8. An Axminster tube frame having a carrier bar provided with yarn tubes arranged in a single row on the tube frame, each yarn tube having a circular yarn receiving mouth, the centers of the mouths of alternate tubes being farther from the carrier bar than the centers of the mouths of the intermediate tubes.

9. An Axminster tube frame having a carrier bar provided with yarn tubes arranged in a single row on the tube frame, each yarn tube having a circular yarn receiving mouth, the centers of the mouths being arranged in two rows parallel to and at different distances from the carrier bar.

OSCAR V. PAYNE.

REFERENCES CITED The following references are of record in the file of this patent:

FOREIGN PATENTS Number Country Date 1,283 Great Britain of 1908 317,193 Great Britain Aug. 15, 1929

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