US933187A - Loom. - Google Patents

Description

Patented sept. 7,- 1909.

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moa/naman LOOM.

APPLIMTION FILED JULYG. 1907.

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H. LE DOUX.

LOOM.

APELIGATION FILED JULY 5. 1907.

Patented Sept. 7, 1909.

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ANDREW. s. Gamm co'. Pnawumoammlsns wAsHmGToN n c UNITED sTATEs PATENT oEEicE.

HECTOR LE DOUX, 0F VVORCIEISTER,` MASSACHUSETTS, AS'SIGNOR T0 CROMPTON &

KNOWLES LOOM WORKS, Av CORPORATION OF MASSACHUSETTS.

VLooM.

Specification of Letters Patent.

Patented Sept. 7, 1909.

Application mea'ruiy 5,1907. seran No. 382,147.

To all whom it may concern: v

Be it known that I, HECTOR' LE DOUX, a citizen of the United States, residing atE Worcester, in the county of Worcester and State of Massachusetts,have inventedcertain new and useful Improvements in Looms, of which the following is a specification.

My invention relates to looms, and morel particularly to an attachment for a loom used for making weft or chenille, as a material to be woven into rugs.

In manufacturing weft or chenille to be woven into rugs, there is ordinarily a lling of coarse woolen yarn thrown into a shed composed of fine and strong warp threads, which are preferably used in small numbers in separate sections, at regular distances from each other. These warp threads are for the purpose of binding the filling and` holding it, so thatY when the woven fabric is out into strips, the woolen yarn filling is held firmly.

In the weft or chenille to be woven into rugs, as ordinarily made, the warp threads are woven around the coarse woolen filling in the form of a doup, and doup heddles are employed to produce the woven. fabric, which is afterward cut into strips, but a' single doup does not bind and hold the filling as it should be bound and held, and con-.

sequently the weft or chenille is liable to be torn or drawn apart, after the woven fabric has been cut into strips. 1

The object of my invention is to provide an attachment for looms of the class referredA to, in which a series of needles, arranged in pairs are used, a pair of needles for each, section of warp threads, and each needle of, a pair is mounted independently, and the t'wo needles have a simultaneous pivotal or rocking motion toward and from each other at their threaded ends. Each needle carriesi a thread and the two` threads, throughthe movement of the needles, form a binding for-I the warp threads. In casefor instance four main warp threads are used, there are twoi additional threads used with the two needles` to obtain two separate selvages, one on each side of the four warp threads.

have only shown in the drawings a detached portionof a loom with my improvements combined therewith, sufficient to en able those skilled in the `art to understand the constructionand operation thereof.

Referring to the. drawingsz-.Figure 1 is a the harnesses are not shown in this figure.,

Fig. 4: shows a part of the needle motion shown in Fig. 3, detached; the needles are in a different position. Fig. 5 is a section, on line 5, 5, Fig. 4, looking in the direction of arrow c, same figure. Fig. 6 shows, on an enlarged scale, a detached section of the woven fabric. Figs. 7 8, 9, and 10 are diagrammatic views, showing the method of weaving with my improvements.

In the accompanying drawings, 1 is a portion of the lay beam, 2 the reed, 3 the hand rail, 4, Fig. 3, the upper portion of the lay sword, 5 and 6 two vertically moving harnesses'which form the4 shed, in the usual way, and are operated by cam levers, not

shown, and have the upper strap, 7 )assing over a harness roll 8 on the harness ro l shaft 9 mounted in brackets 10 secured to the loom arch 10.

All ofthe above mentioned parts may be of the usual andv well known construction.

I will-now describe my improvements.

On the upper side of the hand rail 3, at

each end thereof, (only one end is shown in the drawings,) is secured a stand 11, having in this instance a vertically extending undercut groove therein, forming a track or guide-way for a vertically moving plate or rail 12, which has an angle-shaped end 12 which engages` the groove in the stand 11. The rail 12 has on its rear side, at each end thereof, two` lugsor ears 12" to receive a pin 13, on which is pivotally mounted the `hub 14 onthe lower end of a connector 14.

will be understood that a second arm 16 and connector 14, are located at the opposite end of the loom, not shown The vertically moving rail or plate 12 has thereon, at regular distances apart, and en; tending in a horizontal line upon the rear side of the plate 12, a series of studs or pins 17. Each stud or pin 17 has loosely mounted thereon two blocks 18, and 19, one of said blocks, as 1S, receives and holds the uppei` end of a needle 20, and the other block, as 19, receives and holds the upper end of a needle 21. The lower ends of the needles 20 and 21 have openings or eyes 20" and 21, respectively, through which pass the threads 22, and 23,y respectively, from a separate beam, not shown. Each block 18 has a pin 1S thereon, and each block 19 has a pin 19 thereon, said pins 1S and 19 are preferably on opposite ends of the blocks. The pins 18 are adapted to extend into openings or slots 24 in the lower edge of a second rail or plate 24, and the pin-s 19 are adapted to extend. into openings or slots 24- in the upper edge of said rail or plate 24. r1`he rail or plate 24 is in thisy instance movably held in place', relative to the rail or plate 12, by screws 25, which extend through elongated openings 24 in the rail or plate 24, at each end of said rail or pla-te; only one end of said plate is shown". The plate 24 is adapted to' have a vertical movement with the plate 12, and also` a longitudinal reciprocating movement rela-tive te" the plate 12, and by means of said movement each pair of needles 20', and 21, carrying the threads 22 and 23, are moved or rocked in opposite directions, simultaneously, and caused to move toward each other and away from each other at their threaded ends.-

The rail or plate 24 has a reciprocating movement communicated thereto, in this instance through a cam lever or arm 26, having itsv hub 26 loosely mounted on a stud 27? on thel arm 16 ;v` the cam lever 26' extends above the harness roll shaft 9 in this instance, and is adapted t obe engaged by the cam-shaped surface 2 9 on a roll 29,` fast on the harness roll shaft V9, andV to have a reciprocating rocking movement communicated thereto, through the rocking of said shaft 9 by the raising and lowering of the harnesses 5 and 6; The cam lever 26 carries a pin 26 at its outer end, onwhich is pivotally mounted the hub 30 of a connector 30; the lower end of the connector 30 has a hub 30 thereon, which` is pivotally connected with ene arm 3x1 of an angle lever 31;k the hub 31` of which is' pivotally mounted on a stud 32 on an upper extension 12a on the end of the rail or plate 12. Theb other arm 31 of the angle lever 31 has its end forked, to extend over a' rounded or rod-shaped extension 24a on the longitudinally moving rail? or plate 24. A helically coiled expansion spring 3i encircles said rod extension 24:t and bears at onel endagainst a pin 33 on said rod 24a, and at its other end against the forked end on the angle lever arm 3l. The spring forms a yielding connection intermediate the angle lever 31 and the plate or rail 24,

to allow the lever 31 to have more motion than is required to move the plate or rail A second lielically coiled expansion spring 34 encircles a second rod-shaped extension 24h, on the end of the rail or plate 24, and bea-rs at one end against the end of said plate, and at its other end against two lugs or ears 12a on the end of the plate 12. The helically coiled expansion spring 34 acts to move the rail or plate 24 in a direction opposite to the direction of movement caused by the angle lever 31. An adjusting screw 35 turns in a threaded opening in an ear 12" on the plate 12, and is adapted to engage at itsI inner end the outer end of the rod ex tension 24b on the plate 24, to limit the movement of said plate in one direction, see Fig. 3.

Between each pair of needles 20 and 21, and the reed 2, is a downwardly extending plate or strip 36, which is secured to the plate or rail 12, and extends downwardly therefrom to separate cach pair of main warp threads 3T at the rear of the reed 2, so as to have a larger space between tl'xen'i to insure the entering of the needles 2() and 21 between said warp threads, on the downward movement of said needles.

F rom the above description in connection with the drawings, the operation of my im provements ywill be readily understood b v those skilled in the art. lVhen the lay is in its rear position, see Figs. 1, and '7,- the vertically movin-g rail 12 will be in its lowest position, and eachpair of needles 20 and 21 will be in their lowest position, to carry the binding threads 22 and 23 below the lower plane of the main warp threads 37. The shuttle, not shown, with the coarse woolen yarn filling 38, is now thrown through the shed, and on the forward movement of the lay to its extreme forward position, see Figs. 2 and 8, the vertically moving rail 12 through connector 14, is raised, and with it the needles 20 and 21. At the same time the harnesses 5 and 6 change the shed and the harness roll shaft 9 will be partially rotated, and also the cam collar 28M. The rotation` of the cam roll 29 having the cam surface 29 thereon, will raise the lever 26, supposing it to be i-n its lowered position, and through connector 30,` rock the angle lever 31, and through said angle lever 31 and the spring 33 move the rail or plate 24 to the left, and through the movement of said plate 24 move the needles 20 and 21, which are above the upper plane of the main warp threads 37, as shown in Figs. 2 and 8, to thev other side of a vertical line. On the backward movement of the lay, see Figs. 1,

and 9, the vertically moving rail 12 is moved-i downwardly, and with it the needles 20 and 2l, to carry the binding warps 22 and 23 on the other side of the general main warp threads 37 The shuttle will now be' thrown through the shed with the coarse woolen yarn filling 38. On the forward movement of the lay, see Figs. 2, 'and 10, the needles 20 and 2 1 will be moved into their opposite position again, and the operation will be repeated as the loom continues to operate, and the fabric `will be woven, as shown in Fig. 6, as will be well understood by those skilled in the art.

It will be understood that the details of.l

construction of my improvements may be varied if desired, and they may be adapted for weaving` fabrics of different kinds.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is l. In a loom of the class described, a lay, a series of needles carried on and movable with the lay, and arranged in pairs, one pair of needles for each section of warp threads, and each needle carrying a binding thread, and the two needles of each pair mounted independently of eachother and adapted to have a pivotal or rocking motion, and means for moving said needles in a vvertical plane, and means for giving a pivotal or rocking motion to all of the series of needles simultaneously.

2. In a loom of the class described, a lay, a series 'of needles carried on and movable with the lay, and arranged in` pairs, one pair of needles for each section of warp threads, and each needle carrying a binding thread and the two needles of each pair mounted independently of each other, .and adapted to have a pivotal or rocking motion toward and away from each other, and means for moving said needles in a vertical plane, and means for giving a pivotal or rocking motion to all of the series of needles simultaneously, through a single connection to operating mechanism.

3. In an attachment for a loom of the class described, a series of needles arranged in pairs, one pair of needles for each section of warp threads, and each needle carrying a binding thread, and the two needles of each pair mounted independently of each other, and adapted to have a pivotal or rocking motion toward and away from each other, and means for raisingA and lowering said needles, and means for moving them 1n opposite directions, said last named means including a reciprocating rail or plate, carried on and movable with the rail or plate carrying the needles.

1l. In an attachment for a loom of the class described, a series of needles arranged in pairs, one pair of needles for each section of warp threads, and each needle carrying a binding thread, and the two needles of a pair mounted independently of each other, and adapted to have a pivotal or rocking movement, and means for operating said needles to form a binding for the warp threads, said means comprising a vertically moving plate on which said needles are sup ported, and a second longitudinally moving plate, and means for moving said longitudinally moving plate at regular intervals, to cause the movement of the needles toward and away from each other.

5. In a loom of the class described, a lay, needles carried on and movable with the lay, and means for communicating a pivotal or rocking movement to the needles, said means comprising a reciprocating rocking roll having a cam surface thereon, and connections to the harness mechanism for rocking said roll, a cam lever, and connections intermediate said lever and the needles.

6. In a needle motion attachment for a loom, a needle or needles, means for communicating a pivotal or rocking movement to the needle or needles, comprising a harness roll shaft adapted to have a reciprocating rocking movement, a roll fast on said shaft and having a cam surface thereon, a cam lever, a connector from said cam lever to an angle lever, and said angle lever, and connections intermediate said angle lever and the needle or needles.

HECTOR LE DOUX.

Vitnesses:

JOHN C. DEWEY, M. HAAs.

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