US1448830A - Loom for and method of weaving fabrics - Google Patents

Description

Mar. 2 0), W23 1,448,830

c. A. COOK LOOM FOR AND METHOD OF WEA'VING FABRICS Filed May 22, 1920 5 sheets-sheet 1 Zjwuentoz Clyafie A oo/=- k V W, flcrom s Mar. 2%, 1923.

C. A. COOK LOOM FOR AND METHOD OF WEAVING FABRICS Filed May 22, 1920 5 sheets-sheet 2 Twas =5 3 2.5

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Mar. 20, 1923. 11,448,830

c. A. COOK LOOM FOR AND METHOD OF WEAVING FABRICS Filed May 22, 1920 s shets-sheet 5 z z Invezzior. CQJQA- COO/Y.-

by wm z% shutt e till Patented Mar 29, 1923.

GL'YIDE A. COOK, 035 ELOfihifiEURG, PWQEYLVAWIA.

' $00M FOR AND METHOD OF WEAVING Application filed May 222, was. Serial l lo. senate.

To aZZ whom it may concern:

Be it known that I, Cnron A. Coon, a citizen of the United States, residing at Bloomsburg, in the county of Columbia and State of Pennsylvania, have invented con tain new and useful Improvements in Looms for and Methods of Weaving Fabrics, of which the following is a specification.

This invention relates to a loom construct- Y ed to weave superposed independent fabric webs simultaneously.

I am aware that separate webs have been simultaneously woven on unit machines but, in such cases, the machines, in mechanism, are the equivalent of two or more looms; or are designed for weaving a tube and thence splitting the tube longitudinally on opposite sides to produce the two separate fabric webs. However, in the case of splitting a tube the edges are left unfinished which is especially disadvantageous, particularly in fine fabrics such as georgettes and the like.

The principal features of the novelt of this invention over the present state 0 the art are the provision in a single loom, of more than one independent shed, each shed having its own warp and served by several shuttles alternately interchanging between the several sheds, whereby several super posed fabric webs are produced which are interconnected by only half as many filler threads as is the case in weaving on the usual bag or tube loom, and when these filler threads are severed two independent selvage edge fabric webs are the result;

The invention further provides the necessary mechanism for crossing the shuttles through the sheds to obtain the above result, and, in addition, is equipped with protector mechanism which prevents a smash due to the non-arrival of any shuttle.

In the drawings:

Fi re 1 is a front view showing the boxes, lay and attendant mechanism, parts 27 to 32 having been omitted for the sake of clearness. H

Fig. 2 is a plan view of the shuttle race, and showing the slitter knives in position for severing the filler connecting the separate webs.

Fig. 3 is a diagrammaticlongitudinal section of the loom.

Fig. 4 is a perspective view of one-shuttle box and its protective mechanism, bracket 29 being omitted for clearness of illustration,

. the evolution webs, through three successive double shed t0 Fig. 5 is a diagrammatic view showing the cycle of the shuttle.

lg. t"; is a diagrammatic view showing of the two independent fabric formations.

Fig. Tie an enlarged front elevation off the left hand shuttle box.

Fig. 8 is a top plan view thereof,

Fig, 9 is a, the shuttle box guide end with the picker just leaving the same.

ig. 10 is a perspeceive view of the double picker.

In detail: is substantially the same as the usual earn loom, comprising the side frames 1 carrying the loom beams 2 and 3 on which the warp for the independent sheds is wound. The

warp from beam 2 runs over the whip roll 75 4 while the warp from the loom beam 3 runs over the whip roll '5; and the warps then run under and over the rolls e and 7 respectively and pass through the heddles carried by the harness 6' whereb independent superposed sheds and B are formed. A reed 7 common to both sheds and mounted by the lay 3 is carried 'by the lay swords 9 for beating up the of the lay ,8 forms the filler, The topl shuttle race for the lower shed, while an independent member 10 carried by the mounting for the reed '2 forms the shuttle race for the upper shed A, and cooperates with supplemental race ways or filler shelves so 10 to form a, substantially continuous sup port for the shuttle during travel.

In thus providing two sheds two superposed independent fabric webs may be woven on a unit machine by crossing the shuttles to through the upper and lower sheds as will be hereinafter described in connection with the shuttle mechanism. However, after the webs are formed as indicated at C and D they are taken-off the loom through the pairs mo and 12 and through a series over the respective sand and finally wound on the 19 atthe frontot the loom.

01E rollers 11 of guide rollers, rollers 16 and 17 cloth rolls 18 and At each side of the loom is the usual we shuttle mechanism including the picker mechanism which comprises the picker sticks 20- and 21 which actuate the various picker gllocks or butts carried bythe shuttle boxes fragmentary rear elevation of The construction of the loom we the two so and F each of which has three inde- 11c pendent shuttle receiving compartments as shown. These shuttle compartments move up and down through the usual motions of the loom as in the case of the ordinary loom of the cam type. At the front of the lay are mounted the protector rods 22 and 22 carrying protector arms 23, 24, 25 and 26 and daggers 23 which operate in the usual manner to prevent a smash if any shuttle fails to properly arrive in its respective box.

it will be seen that with the foregoing arrangement oi protector mechanism full protection is guaranteed for the reason that when one shuttle is in the box it operates its pair of protectors, while the other pair of protectors cannot be operated if its shuttle fails to reach its box; Whereas if only one protector was used for each box protection would be given only, in the event that both shuttles tail to reach their boxes, for if one shuttle reaches the box (regardless of which box it is) theprotector rod is operated, and the lay is not stopped and a smash is the result.

As previously set out thereare two sheds A and B being the upper and lower shed r spectively and each shed being entirely independent of the other except for the fact that they are served. by thesaine reed and by interchanging shuttles. in; weaving the usual tube it is customary forthe shuttles to travel through the upper shed, back through the lower shed and again through the uppershed, thus producing an adequate filler so that a tube is the result. In the present invention. however, the shuttles are crossed between the sheds so that the result, while a tube, 15" nevertheless an upper and lowerweb connected by only half as manyv filler threads at the side as is the case with the usual tube. This is accomplished in the following manner: Referring to F1g. l the shuttles are in the middle compartments of the movable shuttle boxes E and F with the shuttle box on the right hand, namely F, in a position to deliver the huttle from. its middle compartment through the lower shed while the shuttle box E on thejleft hand side is in a position to deliver theshuttle in its middle compartment through the upper shed. These shuttles are designated X and 1 (see Figures 1 and 5)'a'nd cross in opposite directions, Y going to the lower shelf of box E from right to left through the lower shed B on the race of lay 8 and X crossing from the left to right through the top shed A on the top shuttle race 10 to the upper shelf or compartment of box F, from which each shuttle returns on the next pick to the cpnter shelf or compartment of the respectrve boxes from which they were originally picked, then'the boxes change their positions, box F going up and box E going down when, again, the operation of crossing the shuttles through the sheds is repeated, this time shuttle Y crossing through the top shed A on the top shuttle race 10 to the top shelf or compartment of box E while shuttle X crosses through the lower shed to the lower shelf or compartment of box F after which each shuttle again is returned to the center shelf or compartment of their respective shuttle boxes, the boxes then chang-. ing to their first position, shuttle box 1* going down and shuttle box E goin up,this operation being continued repeated y during the weaving of the goods. It is to be noted in this connection that each shuttle box consists of three shelves or shuttle receivlng compartments, the center shelf. or compartment of each being for the purpose of changing the shuttles from one piece of goods tothe other, while-the top shelf or compartment is to receive and return the opposite shuttle by passing it through shed A. of the upper piece of goods and the lower shelf or compartment is to receive and return the opposite shuttle by passing it through shed B of the lower piece oi goods. In this way the two webs are woven with only half as many filler threads connecting thetwo as would be the cam in a bag or tube loom. Mounted on the la and carrying the top shuttle race 10 are t -e U-shaped members 2? Figures 2 and et which have, at their bend the knife blades 28 which are located in such a position as tube in line with the filler threads-- connecting-the two webs of fabric so that immediately upon-the 'weaving of the fabric these filler. threads connecting" the two superposed "webs are severed thus male ing the two superposed webs entirely independent from eachother. This loop" is of proper dimensions to penniti freedom of filling to bind the selvage of the goods together for a woven length, in practice, of

approximately one half inch so as not to waste any filling and then the two separate webs are separated by the knives 28 so that both webs may travel their respective courses over their respective sand roller systems. The sand roller take-ups are each driven in the usual manner, but by separate trains of gears, from the respective pick wheels which. in turn. are driven, as one, from a catch operated by the motion of the lay.

The U-shaped members 27 have their ends secured to brackets29 (see Figure 2) slidable on the mounting members 30 carrying guide rods 31 provided with springs 32 which permit the said shuttle'race 10 to be moved by hand to the position indicated in dotted lines shown in Fig. 2 so that the weaver may draw the shuttle race 10 out of the way when working on the goods. In order not to conceal other details, these parts 28 to 32, inclusive, have b en eliminated in Fig. l, the location of the U-shaped members 27 only being indicated. For a similar reason the till Laeaeso brackets 29 have been removed from the U- shaped members 27 in Fig. 4.

The mounting members or guides 30 are pivoted to adjustable hinges 40 secured to the forward end of the lay 8 and have slidable connection with the rods 41 which are pivoted on hinges 42 secured on the forward end of the breast beam. In this manner the device is given freedom to move back and forth withthe lay when the loom is running.

Accordingly the raceway 10 will have two independent motions. The one for the purpose of permitting the weaver to work on the goods to put in ends or ripping floats when he moves the raceway 10 back by hand, together with the rods 27 and brackets 29, sliding therein on the guides 30;, which then remain stationary, together with the rods 4:1 and hinges 42; The raceway 10 receives a second niowement in horizontal direction during the operation of the loom when the raceway 10, together with the rods :27, brackets 29, guides 30, rods 4:]. and hinges 4:0, 42, oscillate with the lay. The tiller boards 10 of the upper shuttle race are secured by bolts 33 carrying springs 3d to the reed holding board, the said springs 34: maintain the filler boards 10 in proper position but per unit or" their being lifted, when necessary to release the bottom shuttle.

The shuttle boxes are constructed for right and left hand sides of the loom and are opened. at the back to accommodate a double picker 35 having the body thereof vertically passaged to receive the poker stick, a roller 36 being fitted in the forward or striking end of the picker and held by a steel pin suitably secured in place, the purpose of the roller 36 being to give the same leverage for striking both shuttles to prevent, as far as is possible, undue wear on the picker stick. The pickerbody 35 carries two butt recesses 37 and 38 each having a rawhide butt or picker block 37, 38- forced thereinto as indicated at 37 and 38' respectively for running in both levels of the shuttle box. The shuttle box guide ends 40 are shaped to receive the picker body at such time as the shuttle boxes are changing levels.

The double pickers 35 are easily removable so as to be substituted by single pickers to obviate the necessity of running both shuttles constantly should one warp run off before the other.

I claim:

1. In a double shed loom, a lay beam having a lower raceway for the lower shed, and an upper raceway independently mounted for the upper shed and slidable in its own plane.

2. In a double shed loom, a lay beam having a lower raceway for the lower shed, and an upper raceway independently mounted for the upper shed and slidable in its own plane, and supplemental raceways suspended from said la beam and extendin be tween the shutte boxes and the ends of said upper raceway.

3. In a double shed loom, a lay beain having a lower raceway for the lower shed, and an upper raceway for the upper shed independently mounted and slidable in its own plane, and yieldable means for pern1itting reciprocation of said upper raceway intransverse direction of the lay beam.

at. In a double shed loom, lay beans haw ing a lower raceway for the lower shed, and an upper raceway for the upper shed, independently mounted and slidahle in its own plane, yieldable means for permitting reciprocation of said upper raceway in transverse direction of the lay beam, and a pair of knife member's mounted the on tremities of the said upper raceway adapted to sever the connecting threads at the selvage edge between the webs formed by said upper and lower sheds.

5. In a double shed loom, a lay beam haw ing a lower raceway for the lower shed, and a slidable upper raceway independently mounted for the upper shed, and supple".

mental raceways extending between the shuttle boxes and the ends of said upper raccways and suspended from said lay beans.

6. In a double shed loom havin the sheds superposed with relation to eae other, a pair oft shuttle boxes situated one on each side of the sheds, each of said shuttle boxes being provided with three superposed coin partments, and means for positioning the middle compartment of one shuttle box op posits the upper shed while simultaneously positioning the middle compartment of the other shuttle box opposite the lower shed and for alternating said positions and a raceway for each shed, one of said raceways being slidable in transverse direction with relation to the sheds.

7. In a double shed loom having the sheds superposed with relation to each other,

pair of shuttle boxes situated one on each side of the sheds, each of said shuttle horses being provided with three superposed compartments, means for positioning the mid dle compartment of one shuttle box oppo site the upper shed while simultaneously positioning the middle compartment of the other shuttle box opposite the lower'shed and for alternating said positions, and means for simultaneously sending a shuttle from each box through the shed to the op- I posite box and a raceway for each shed, one of said rac'eways being horizontally slidable in transverse directionwith relation to the sheds.

8. In a double shed loom havin the sheds superposed with relation to each other, a pa1r of shuttle boxes situated one on each side of the sheds, each oif'said shuttle boxes being provided with three superposed compartments, means for positioning the middle compartment of one shuttle box opposite the upper shed- While simultaneously positioning the middle compartment of the other shuttle box opposite the lower shed and for alternating said positions, and means for simultaneously sending a shuttle from each box through the shed to the opposite box. said shuttle sending means comprising l0 a picker for each box with a pair of butts spaced apart the same distance as said compartments, the lower butt registering with the lowermost compartment when said box is in its upper position and a raceway for each shed, one of said rareways being horizontally slidahle in transverse direction With relation to the sheds.

In testimony whereof I affix my signature.

CLYDE A. COOK. [1,. s]

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