US2592723A - Edger for rug weaving machines - Google Patents

Description

April 15, 1952 T. NoLTE EDGER FOR RUG WEAVING MACHINES 2 SHEETS-SHEET l Filed Jan. 2l, 1949 maf www 4April 15, 1952 T, NQLTE 2,592,723

EDGER FOR RUG WEAVING MACHINES Filed Jan. 2l, 1949 2 SHEETS-SHEET 2 Patented Apr. 15, 1952 UNITED STATES PATENT OFFICE y 2,592,723 Epoca Foa RUG WEAVING MACHINES Theodore Nolte, Iowa City, Iowa Application January 21, 1949, Serial No. 71,771

3 Claims.

The principal object of my invention is to provide an attachment for rug weaving machines thatmakes possible the uniform and accurate edging of the rug being Woven.

A further object of this invention is to provide f a rug edge contacting means for rug weaving machines that not only produces straight uniform nished side edges tot the rug being woven, but maintains a given width to the rug throughout its length.

A still further object of my invention is to provide an edger for rug weaving machines that eliminates the usual strain on the side strands of the warp during the Weaving of a rug.

A still further object of my invention is to provide an edger for rug weaving machines that, with the machine, produces a rug free from pattern or shape distortions.

A still further object of my invention is to provide a rug edger for use with rug weaving machines that aids in reducing breakage of the warp or cords during the weaving process.

A still further object of my invention is to provide an edging attachment means for use with rug weaving machines that not only speeds up the y i weaving of a rug, but permits the use of lighter' material for making the rug. A still further object of my invention is to pro vide a rug edging means for rug weaving machines that is economical in manufacture, dura- L ble in use, and easy to attach.

These and other objects willfbe apparent to those skilled in the art. i

My invention consists in the construction, a1'- rangement, and combination of the various parts of the device, whereby the objects contemplated are attained as hereinafter more fully set forth,

`pointed out in my claims, and illustrated in the accompanying drawings, in which:

Fig. l is a perspective View of one of my edgers attached to a rug weaving machine holding one edge of the rug being woven. Obviously,` one of these devices is at each side ofthe rug for holding the rug in two directions.`

Fig. 2 is a bottom view ofmy device and more fully illustrates its construction.

3 is a top plan view of my edger.

Fig. 4 is a side view of my edger withthe beater bar of the weaving machine in `forward position.

Fig. 5 is a side View of my edger with the beater bar ci the Weaving machine to the rear.

The art of Weaving rugs is very 01d, and the use of machines to facilitate this work is most common. While large rug `manufacturers do have fully automatic machinery and deal in given materials, the small users have or use common hand looms that may or may not 'be motor driven. These well known looms have a frame Ill, and a plurality of warp cord or threads Il. These cords extend `from the rear of the machine, thence through the eyes of the heddles, thence through the beater bar I2, thence over the temple or horizontal bar I3, and thence downwardly to the finished rug drum. The iiller or woof I4 is shuttled back and forth -between the lowered and elevated warp forwardly of the beater bar and rearward of the temple bar. This Woof is literally shot rst from one side, then to the other side with the beater bar moved forwardly to conipress the Woof in the warp between each shuttle action. While this action compresses the longitudinal length of the rug, the two side edges of the rug are formed only by accident. A surplus of woof may or may not exist at the edge of any one cycle, or the woof circuit may be short, with the result that the rug edge `at this point is pulled in. The result is an undesirable, uneven, and rough edged rug. The shuttling of the woof I(which is under tension) pulls the warp together, thereby unevenly narrowing the rug and causing breakage of warp strands. Temple bars are usually threaded, as shown in Fig. l, to promote the spreading of the warp, but such means is only partially successful and does not uniformly linish the side edges of the rug. I have overcome such problems lby providing a simpler edger means at each sideimarginal edge of the rug and which I will now describe in detail.

All weaving machines have a brace bar -I5 to the front of the temple bar. l secure one of my devices at each side of the rug 'to this brace bar and temple bar, and as each of the devices serve the same purpose and operate identically, I will describe only one; it being understood, however, that two of the devices described are used on a machine. The numeral I5 ldesignates a strap link means having one end embracing the bar i5 and its other end embracing the temple bar I3. These embracing ends are slidably mounted around the machine members I3 and` I5 and are capable of being rigidly tightened thereon by the screw bolts Il, as shown in the drawings. end of `the member I5 that embraces the temple bar is reduced in width to provide a projecting stop portion I8 adjacent the temple bar. The numeral I9 designates a movable platform rotatably mounted to the temple bar, by having three circular collar bands 2U, 2l, and 22 loosely embracing the temple bar. The collars 2B and 2i are at each side of the link means I6, respectively. The nubeater bar when the same is moved to the front.r

The numeral 21 designates a bearing member extending downwardly from the left under side of the hinged platform. The numeral 28 designates a finger rod vertically pivoted to the bearing member 2l. This nger rod extends normally Yfrom its pivot portion, rst downwardly and forwardly, thence horizontally to the right and rearwardly and thence vertically upwardly through a slot 29 in the right hand portion of the hinged platform. This slot 29 extends forwardly and rearwardly and the free end of the finger is shaped for penetration of the warp. The numeral 30 designates a depending bracket arm on the underside of the link I6. The numeral 3I designates a chain or like flexible member having one end connected to the rod finger below its pivot vicinity and its other end secured to the bracket 30, as shown in Fig. 4. The numeral 32 designates a coil spring having one end secured to the bracket 30 and its other end secured to the upper portion of the collar 2B for yieldingly holding the platform in substantially a horizontal plane and the arm 25 in a rearwardly extending condition, as shown in Fig. l. The numeral 33 designates a projection on the collar 2W capable of engaging the top of the portion I8 of the link I6 for limiting the upward swinging movement of the platform I9. The positions of the two edgers on the temple bar and brace bar I will depend on the width of the rug to be woven. The two devices, however, are always slidably adjusted on the members I3 and I 5 so that the free end portion of the finger 28 of each device will normally extend upwardly through the marginal edge of the warp as shown in Fig. l. One or more of the strands of the warp should pass to the outside of the finger. After the devices have been properly positioned the collar ring 23 and link means I6 should be tightened against sliding movement. Normally, the nger 28 will be in the rearward end of the slot 29. With the fingers holding the two side marginal edges of the warp outwardly away from each other and maintaining them in such spread positions during the shuttling of the woof, several important results are obtained. First, the rug will be woven at a maximum even width. With the edges of the Warp uniformly held, the woof, as it is passed back and forth will rst embrace and extend around one finger 28 and at they next operation of the beater bar will embrace and -extend around the other finger 28 at the other side of the rug. This means that the fingers 2B Qirterm'ittentlyfiextending aroundetheflngers ethei-:riigciswovenxthe-rtwo VVedges;oifithefrugiwill 4naturally notfnlyfbe; dfeuni.- lfform'idista'nc' apart? btfwillf-be fevenegtight, vtornarnejatgfiandiofflpleasngrfinishedrappearance.

4 and then to re-appear when the beater bar is moved rearwardly. With my device, the forward movement of the beater bar, contacts the arm 25, causing that arm to be moved in a downwardly circular path until it and the platform is extending forwardly and downwardly, as shown in Fig. 5. With the platform is such position, the nger 28 will be free from the rug being woven. The beater bar completes its purpose of packing the woof strand last shuttled. As the finger 28 must be of a given length to function and also permit the frame of the beater bar to move to the front without damage, its pivot connection heretofore described,permits it to swivel and also to move toward the front of the slot 22 to ride over the beater frame as shown in Fig. 5. Upon the rearward movement of the beater bar, the spring 32 will return the arm 25 and platform to normal position, as shown in Fig. 4. During this return action the finger 28 will be pivotally free and will enter the warp extending upwardly and forwardly. However, as the limit of the chain 3 I is reached, the chain will pull the bottom portion of the ringer relatively forwardly to the platform thereby straightening the nger and moving it to the rearward end of the slot 29. This chain is the stop to the nger, and the lug 33 contacting the portion IS is the stop to the platform portion. With the side strands of the warp relieved of the strain from the shuttling Woof, not only is the warp less subject to breakage, but even lighter warp strands may be used.

By the use of my device on a loom the resultant rug will have a good selvedge or edge and thesides of the rug will be even and straight. vAlso it makes possible the weaving of a rug nearer a width to the width the reed is threaded. Also there is less shrinkage in the width of the rug and eliminates the usual necessary tight warp tension. This means less warp breakage and also makes unnecessary double side or selvedge strings. Another advantage of my device is that it is impossible for the filler to catch in the shuttle and jerk the edge of the woven rug out of line.

Some changes may be made in the construction and arrangement of my edger for rug weaving machines without departing from the real spirit and purpose of my invention, and it is my intention to cover by my claims, any modified forms of structure or use of mechanical equivalents which may be reasonably included within their scope.

I claim:

l. In combination with a rug weaving loom having a temple bar, a brace bar to the front of .the temple bar and a movable beater bar rearward of the temple bar, a rug edger, comprising; a platform having one end portion rotatably and slidably mounted on said temple bar, a bracket having one end slidably embracing said brace bar. and its other endslidablyfembracing said temple'bar, a means for-limiting the sliding movement of said platformjfandfsaid bracket on fsaidf templerbar,-. a-` spring vhavingione. end connected to said bracket'and-itsotherzend when saidi-.beateif' banatiszrrnovedforwardly said e'igagement causing; id armxand saidfplatform Gt' swingdownwardly islbtcinesaidieplatfprmtea l-rodingersverticallyfpivotedi at..one end t0 v.he underside fof saidiirplatf'orm-.iand havingfitsffrefe end portion extending upwardly through said slot, and a flexible element having one end secured to said bracket and its other end secured to said rod finger.

2. In combination with a rug weaving loom having a temple bar, a brace bar to the rear of the temple bar and a movable beater bar rearward of the temple bar, a rug edger, comprising; a platform having one end portion rotatably and slidably mounted on said temple bar, a bracket having one end slidably embracing said brace bar and its other end slidably embracing said temple bar, a finger on said platform, a spring means for yieldingly holding said platform rearwardly of said temple bar, an arm on said platform capable of being engaged by said beater bar when said beater bar is moved forwardly for causing said platform to swing downwardly, and a stop on said platform contacting said brace bar at times for limiting the swinging action of said platform in one direction.

3. In combination with a rug weaving loom having a temple bar, a brace bar to the front of temple bar and a movable beater bar rearward of the temple bar, a rug edger, comprising; a platform having one end portion rotatably and slidably mounted on said temple bar, a means for adjustably limiting the sliding movement of said platform relative to said temple bar in both directions, a bracket having one end slidably embracing said brace bar and its other end slidably embracing said temple bar, a nger on said platform, a spring means for yieldingly holding said platform rearwardly of said temple bar, an arm on said platform capable of being engaged by said beater bar when said beater bar is moved forwardly for causing said platform to swing downwardly, and a stop on said platform contacting said brace bar at times for limiting the swinging action of said platform in one direction.

THEODORE NOLTE.

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

UNITED STATES PATENTS Number Name Date 745,230 McFethries Nov. 24, 1903 867,300 Poalk Octu 1, 1907 1,744,541 Gaouette Jan. 2l, 19310 1,746,773 Hughes Feb. 1l, 1930 2,085,273 Repass June 29, 1937 2,232,630 Payne Feb. 18, 1941 2,420,952 Hoebcr May 20, 1947 FOREIGN PATENTS Number Country Date 8,087 Great Britain of 1898 14,678

Great Britain of 1887

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