US1447351A - Cross-weaving loom - Google Patents

Description

Mar. 6, 1923. 1,447,351.

C. LEA.

GROSS WEAVING LOOM.

ORIGINAL FILED NOV. 2, i916.

4 SHEETS-SHEET l- Mar. 6, 1923. v 1,447,351.

' C. LEA.

crwss wmvmc LOOM.

ORIGINAL FILED NOV. 2, 1916. 4 SHEETS-SHEET 2- lmvemiam: z zwsllew Mar. 6, 1923. 1 1,447,351.

1 C. LEA.

CROSS WEAVING LOOM. ORIGINAL FILED NOV: 2. 1916. 4 SHEETS-SHEET a.

v Imwewiww: @MWJe L@ 6? Ma r. 6, 1923. 1,447,351. v c. LEA.

.CROSS WEAVING LOOM. ORIGINAL FILED NOV- 2. ma.

4 SHEETS-SHEET 4.

sLem,

lmwemibr;

H i i CHARLES LEA, OF BOSTON, MASSACHUSETTS, ASSIGNOR, BY MESNE ASSIGNMENTS, TO MOHAWK CARPET MILLS, INC, OF AIESTEEDAM, NEXV YORK, A CORPORATION OF NEW YORK.

CROSS-WEAVING Loon.

Original application filed November 2, 1916, Serial No. 123,072. Divided and. this application filed October 23, 1913. Serial No. 332,782.

T0 cll'wizom it may concern:

Be it known that I, CHARLES LEA, a citij zen of the United States,1 and a resident of Boston. in the county of Suffolk and State of Massachusetts, have invented an Improve ment in Cross-Weaving Looms, of which the following description, in COIlIlGCtlOIhWlth the accompanying drawings, is a speclfication, like characters on the drawings representing like parts.

This application is a division oi my co pending application Serial No. 129,072, filed November 2,1916, now Patent No. 1,328,570, dated January 20, 1920, for mechanism for and process of producing chenille.

This invention relates to cros weaving looms particularly adapted for constructing or making chenille. In order that the invention may be clearlyunderstood, I have in the accompanying drawings disclosed one type or embodiment thereof.

In said drawings;-

Fig. 1 is a view partly in side elevation and partly in vertical section of an organized machine for constructing chenille in accordance with my invention;

Fig. 2 is a side elevation thereof; I

Fig. 3 is a view r said machine mainly in end elevation, but omitting certain parts of the mechanism disclosed in the application of which this is a division, but not particularly relating to the subject-matter of thi application;

Fig. 4 is a detail in side elevation and longitudinal section showing the warp harnesses and the doup harnesses in one position- Fig. 5 is a imilar view, but representing the warp harnessesin another position;

Fig. 6 is a detailmainly in vertical transverse section with parts broken away, and representing means for moving the doup harnesses; I

Fig. 7 is a section on'the line 77, Fig.

6, showing one of the cams for imparting lateral or shogging movement to the doup harnesses;

' My invention relates to cross weaving looms which may be used for. any proper purpose but which are intended more particularly for making chenille. Referring more particularly t the accompanying {drawings, wherein I have represented a single embodlment only of my invention, the framing of the machine 1s represented 1 generally at 1, it consisting of suitable side uprights connected by tie bars or otherwise. At the back of the machine I support a spool or beam 2 whereon the warp threads 3 are wound and a spool'or beam 4 whereon the doup threads are wound. Each of said spools or beam is provided with a brake or tension strap or other means respectively shown at 2, 4. The warp threads 3 are adapted to be shedded in any suitable manner, and I have herein represented them as extending at a, b respectively through the eyes of needles 6,7 equal in number to the total number f warp threads 3. The said needles 6 and 7 are carried by the frames 8, 9 and at their inner faces are provided 'vith racks '10,- 11 meshing with circumfere-ntially formed teeth 12 upon a rock shaft, whereby said frames and their needles are oppositely reciprocated in a vertical plane.

The doup threads 5 pass over a rod 13, whereby the slack'may be taken up. For this purpose any suitable construction may be employed. I have herein represented said rod-13 as mounted on sleeves, one of which is indicated at 1 1 and positioned for vertical sliding movement upon upright posts, one of which is indicated at 15 and carried by the frame of the machine. Suitable coil springs,one of which i indicated at 16, are provided yieldingly to support the rod 13 in the position shown in Fig. 1. The doup threads 5 extend through the eyes of needles 17 mounted in and depending from a doup harness frame 18 itself positioned for vertical sliding movement in guideways 19 in the machine framev Movements of vertical reciprocation are imparted to the warp harnesses and movements of vertical reciprocation and of transverse or lateral reciprocation are imparted to the doup harnesses in any suitable man ner. For this purpose I have represented the following organization of parts, to which, however, I am in no wise limited.

Power may be conveyed to the machine in any suitable manner. Herein for the purpose I have represented the machine as having a drive haft 20 mounted in suitable hearings in the machine frame and having fast thereon 'a"'suitable drive pulley, a

connected at its outer end at 31 a connecting rod.32, which. is itsel-f-pivotally connected at g 33 to thewarpheddle frame 9. In this or in an other suitable manner a movement of vertical reciprocation is imparted to' the warp heddle frames 8,9 and sheds are consecutively formed with the warp threads in a manner not here-in necessary more fully to set/forth.

In order' to impart movements of vertical reclprocation to the doup harness frame, I

have herein provided the shaft 34 indicated most clearly in Fig. 6, and have mounted upon theopposite ends thereof crank disks 35', 36 having crank pins 37, 38 receiving the ends of links 39, 40 and of suflicient length to permit slight sliding movement of said links in a direction axially of the said shaft 34. The upper ends of the links 39, 40 are for-med as hubs 41, 42 and are suitably connected to the doup harness frame 18. Upon the opposite sides of the frame are provided two cam surfaces 43, 44, which are oppositely positioned'and upon which ride the "heads of pins 45, 46suitably tappedinto the links 39, 40 about midlength thereof. One of said cam surfaces is indicated more in detail in Fig. 7. Since said cam surfaces are oppositely-positioned, the construction and relation of parts are such that in the rocking movement of the shaft. 34 preferably through substantially 320, the doup heddle frame 18 is vertically reciprocated and; at. the same time is laterally or transversely moved to carry the doup threads across the body of the chenille. Any suitable means may be providedto incorporate.

the'weft with the warp, the, weft incorporated means being preferably and herein shown as such as to effect the positioning of separate lengths of weft, to the laying of which, however, my invention is obviously not restricted.

The loom. is provided with areed 47, shown most clearlyin Figs. 1 and 4 as fast upon the upper end of a reed frame or lever 48, itself loosely mounted for rocking movement upon the shaft 23 and having an arm 49v carrying at its outer end a roll 50 positioned in the cam track 27, whereby said reed is moved to andfro to beat up the weft in a manner not herein necessary more fully to describe. Carried by said reed 47 is a suitable severing instrumentality for. the weft thread, the latter being indicated at 51" in Fig. 4. Herein for the purpose, I have provided two cutting members, the stationary onewhereof isindicated at 52 in Fig. 4, and the sliding member whereof is indicatedvat 53, a spring 54 being secured to the reed to hold said cutting members in cutting relation. The sliding; member 53- is prolonged-below the reed as indicated at 55 4, and is provided with a roll 56 riding upon a suitable stationary cam 57 upon the frame of the machine and held in enagement therewith by a suitable [coil spring 58, the construction and relation ofpartsbeingsuch that immediately upon the posiin Fig.

tioning of the. weft length in the shed, said length ls severed from the body of the weft. Any suitable means may be provided to. pre sent a single weft or anyone of a'plurality of weft threads to the weft needle or filling carrier. If a plurality of weft threads be employed, they may differ; among themselves in color or otherwise. In Fig. 3, I have represented at 59 a portion of a weft magazine having a number of weft thread tubes 60, each of which is adaptechto carry a suitable weft thread for presentation to the weft needle or other means for inserting the selected weft thread. Themagazine 59, if employed, may beselectively operated in any suitable manner either automatically or manually. Herein forthe purpose I have representedthe shaft 61 of said magazine as having fast thereon a hand wheel 62 by means of which the desired weft thread may be presented to the weftneedle. I

The weft needlemay be of any suitable character and may be operated in any suit- A able manner. Herein for the purpose and referring more particularly .to Fig. 3,1 have represented the weft needle at 63, it being mounted in a bracket itself mounted for sliding movement transversely'of the, machine upon a guide 65 laterally extending from the machine frame as indicated most clearly in Fig. 3. l-nordertojimpart sliding to and fro movement to the weft needle, the bracket 64 thereof has a pin 66 extend ing through a slot 67 inthe upper endiof a lever 68 pivoted at 69 upon the machine frame and groove of the cam 71. fast upon the shaft 25.

As herein set forth, the fabric that is formed is intended to be cut into. narrow strips, technically known as chenille strips. It is wholly impracticable to attemptto ferm achenille strip made up of merely straight warps and weft threads,because such a fabric will not holdtogether. Thewarp threads will be laterally separatedfand the fabric or strip wholly disintegrates or comes apart. It is therefore of the greatest importance The said cam 71 1s having a roll 70 rcceived by a that doup warp threads be introduced so such a wa that the latter can be very closely compacte and moreover it is important to provide means whereby a relatively large number of different colored weft threads may be introduced. It would not be practicable to provide a large number of shuttles for this purpose. Therefore the said features clearly cooperate with each other.

Having thus described one illustrative embodiment of my invention, I desire it to be understood that although specific terms are employed, they are used in a generic and descriptive sense, and not for purposes of limitation, the scope of the invention being set forth in the following claims.

Claims:

1. A cross weavin loom comprising in combination, means or interweaving warp and weft threads including a plurality of straight warp' harnesses, for introducing a plurality of sets of straight warp threads, a doup harness to present a set of doup warp threads, a rock shaft, gearing thereon engaging the straight warp harnesses, thereby to impart opposite reciprocations to said straight warp harness, and connections from said shaft and cooperating cams to impart reciprocations to said doup harness, and means to introduce weft.

2. A cross weaving loom comprising in combination, means for interweaving warp and weft threads including a plurality of straight warp harnesses, for introducing a plurality of sets of straight warp threads, a doup harness to present a set of doup warp threads, a shaft, gearing thereon engaging the straight warp harnesses, and connections from said shaft to said doup harness, thereby to impart opposite up and down reciprocations to said straight warp harnesses and up and down reciprocations to said doup harness, means to introduce weft, and means to impart lateral movement to said doup harness.

3. A cross weaving loom for making a woven fabric of uniform character from edge to edge adapted to be wholly cut into uniform chenille strips comprising in combination, means to introduce a plurality of sets of straight warps to be shedded, means to present a set of doup warp threads substantially uniformly spaced throughout the width of the fabric for the production of said uniform chenille strips, means to introduce in succession throughout the entire width of the fabric a plurality of wefts each of which is disconnected from the precedingly laid wefts, a rock shaft, connections from said rock shaft to impart opposite up and down reciprocations to the harnesses for the straight warps and reciprocations to the harness for the doup warps, and cooperating means to impart lateral movement to said harness for the doup warps.

4. A cross weaving loom comprising in combination, means for interweaving warp and weft threads including a plurality of straight warp harnesses, for introducing a plurality of sets of straight warp threads, 2. doup harness to present a set of doup warp threads, a shaft, connections from said shaft to impart opposite up and down reciprocations to said straight warp harnesses and also up and down reciprocations to said doup harness, means to introduce a weft, and opposite cams on the machine frame to impart lateral movements to the doup harness.

5. A cross weaving loom comprising in combination, means for interweaving warp and weft threads including a plurality of straight warp harnesses, for introducing a plurality of sets of straight Warp threads, a doup harness to present a set of doup warp threads, a shaft, connections from" said shaft to impart opposite up and down reciprocations to said straight warp harnesses and also up and down reciprocations to said doup harness, cooperating means laterally to reciprocate the doup harness and a reciprocatory needle to introduce a weft.

6. A cross weaving loom for making a woven fabric of uniform character from edge to edge comprisingin combination, means for interweaving warp and weft threads including a plurality of straight warp harnesses for introducing a plurality of sets of straight warp threads, a doup harness to present a set of doup warp threads substantially uniformly spaced throughout the width of the fabric, a shaft, connections from said shaft to impart opposite reciprocations to said straight warp threads, and connections from said shaft, and cooperating means to impart reciprocations both up and down and laterally to said doup harness, a

raight, warniharnesse and. meansto, partv up; d. olwnl reclprocatlons; to said donp, harnesses, and coioperating means: in:

eluding cams 43,, 44 to impart, transverse movement to said idoup harness, and meansto ntrodu e weft. v

8. A cross. weaving loom, for making a woven fabric of uniform character from.

edge to edge comprising in combination,

means for weaving, warp and weft threads including a plurality of; straight warpkhan nesses for introducing a. plurality of sets of straight warp threads a doup harness to presentasetof doup warp threads substantially uniformly spaced tl1roughout:.the width. otthefahric' ashaft, connectionsfrom' saidshaft to; v impart opposite up and; down reciprocations to; saidfstraiglit. warp harnesses and up and clownreciprocations to 7 said}: doup, harness, v and? cooperating means.

laterally, to reciprocate the doup harness,v

9, Mechanism for forming a fabric; of.

uniform character frolnedge to edge adaptr ed wholly, to be cut into uniform chenille strips comprising in combination, means to introduce. a plurality of sets of stralghtv wa-rps tohe shedded, means independent of the straight warp introducing means to ins trodfi cev donp. warps substantially)uniformly spaced throughout the widthofthe fabric for the production of; said uniform chenille strips and inclnding mechanism independent. of? the stra ght warp. lntroducrng means;

laterally to shiftsaid doup warp introducing means; and; means. to introduce. in-

BUQCQSSIOII; a pluralityf of} wefts,

10. A crossweaving loom, comprising incombination, means for interweaving warp and weft threads including a pair of straight warp. harnesses each for. introducing a set: of straightwarp threads,,a doup harnessto present a set. ofdoup warp threadsavrock,

shaft, gearing thereon engaging the -straight, warp harnesses thereby to impartopposite vertical reeiprocations to; sa'idfj straightfwarpharnesses,. connections from. said'. shaftto the dump warp harness to impart-i vertical.

reciprocations', thereto, and cooperating, means including opposite cams upon the.

loom frame. to impart: lateral} movement to.

saidld'oup harness.

11. A cross-"weavanglooin, COIIIHIlSlDg 1n combination, means, for. interweaving warpneously to o imp art lateral movement. to said donp harness.

Intestiinony whereof, I havesignedmy' name. to thisjspecifieat'ion;

cnnntns LEA.

Images