US1648139A - Heddle for jacquard weaving - Google Patents

Description

R. A. MACHON HEDDLE FOR JACQUARD wEAvING Nov. 8, 1927.

Filed Oct. 28, 1925 3 Sheets-SheetA 1 @Romsey Nov. 8, 1927. 1,648,139

' l R. A. MACHON HEDDLE FOR JACQUARD WEAVING Filed OCC. 28, 1925 3 SheetS-Sheeta Nov. 8, 192 7.

1,648,139 R. A. MAcHoN HEDDLE FOR J ACQUARD WEAVING Filed OO'G. 28, 1925 3 Sheets-Sheet 5 LIFT/N6 Y attorney* Patented Nov. y8., 1927.

f UNITED stares RENE A. nacieron, or'wns'r HAZELTON, PENNSYLVANIA." l

j HEDDLE FOR JACQUABCD WEAVING.

Application sied october es', 1925. semi no. 65,4315.V

This invention relates to new and useful improvementsin weaving fabrics'and particularly to weaving fabrics having designs therein. f A

The principal object of the invention is to weavegured fabrics, with one repeat, regardless of the. width of the fabric, or .the number of warp ends used, the number of repeats being governed by a single pattern design of the acquardv cards.

Another object is to provide a novel and improvedmeans for controlling thevwarp threads between the mail eyes, and the lay beam, at' closer intervals than the ordinary shed produced by the operation of the warp lifting hoo is, whereby to provide binding liller'tlireads for the figure and ground ofr the fabric.

Another object is to provide ya novel and improved lmechanism of this character wherein a satin or other weave is accomplished without increasing the number of jacquard hooks, orrepeating the design across the jacquard cards. l

A further object isvto provide a weaving method wherein the number of warp threads passed through the mail eyes of the jacquard hooks can be greatly increased,and wherein the Aindividual warpthreads are capable of control, 'independently of the shed motion of thejacquard mechanism, to provide for weaving a single design completely across the fabric, or to weave a figure at any point transversely or longitudinally of the fabric,

` regardless of the width of the fabric.

Figure 2 is a similar sectional: view,but- Y showing the warp threads lifted by the j acquard hooks, and certain of the threads held down to providefor. the binders on the re-` quasi-diagrammatie y I Figure '3 Vis 'an elevation of one of the heddle frames, operable by the dobby mechverse face ofthe fabric such view being ineens' PATENT!orifice;

anism, said frame being'adapted to be deypressed such viewfbeing quasi-diagrammatic.

Figure 4 is a similar view of one of the heddle frames' which is adapted to beV elevatedj such view being quasi-'dia'graininatic.`

n i I n l n n v Figure 5 isa diagrammatic view showing the manner of threading the warp threads from two ofthe mail eyes, through certain of the heddles of the' heddle frames.

Figure 6 is an enlarged Adetail view ofone of the heddles, showing the arrangement of the slot thereof, when used in' an elevating heddle frame.

Vtfigure 7 vis a similar view of aA heddle used in a `depressing heddleframe.

ing the 'manner of'securing the heddles in the heddle frames.

.Referring particularly to the accompany- Figure 8 is a dctailsectional view' showing drawings, 10 represents the warp threads which pass through the mail eyes 11, of the harness vstrings 12, such strings having the' vregular lingoes 13 connected to their lower ends', and the hooks'14, on their upper ends voperable by the griffes 1,5, all of which form parts ofthe conventional jacquard mechanism, in connection with'which the present i invention is "adapted for use.

In the ordinaryV operation of'devces `0f this class, the proper number of hooksoand heddle strings' are provided, and` a `corref sponding number of; warp threads passed through their mail eyes, butto providefor the proper number of ends, to produce the quality `of fabric desiredythe number' of repeats must lbeincrea'sed.` With the present device this increase ofV the repeats is obvi ated, and the' warp threads lifted or depressed, for the desired number of sheds,-Vl independently of the regular sheds ofl the hooks, at points between the vmail eyes-andl the lay beam of the loom. :Thus a number of sheds, between thernail eyes andthe lay beam can beV accomplished'l during one or two of the sheds by the hooks, with the re sult that a ysingle pattern orf' design can be woven across a'greater Width of fabric' than heretofore; This",isyaccomplished in the manner,and`bythe means of the mechanism to be next described. f

Disposed betweenV the lay beam harness strings 12, are a `series vof lvertically movable heddle frames 17,;' and carried-by each of the frames, andV extending :vertically longitudinal slot 19 formed therein, and"y eX- ie and trie t los therein, are the heddl-es 18,y each having a tending from a point adjacent one end of the heddle, to a .point adjacent the longitudinal center ofthe heddle. For purpose of illus tration, these heddle 'frames are divided into two groups of five frames each, the heddles of one group have their slots extending from Y a point adjacent the upper end, 'and terminating at a point approximately midway of the length of the heddle, while-the slots of the other groupextend from points adj ay cent the .lower ends t'o points ai short distance above the longitudinal centers of the heddles, and therefore above the lower ends Vof the slotsv of the heddles of the `first group. By thisarrangeinent of the slots, it will be' seen that, when the jacquard hooks lift the warp threads, during the regular pattern shed, suchl threads easily move ythrough the slots'of certain others of the heddles, without interference. Furthermore, when one lof the heddle frames fis elevated, from one in the hooks 22, of the upper and lower rails of v'the heddle frames'. As vFigures 1 kto 5 inclusive, are.quasidiagjrammatic, these de# tails cannot'besho'wn..-v By this construction they binders for the desi gn andlground can .be worked ,separately `.rom the chain of jacquard cards.

*l The heddle frames 17are each providedV with springs A22,A yieldably holding the same in norm-all position, so that one group of frames is held yin elevatedposition, while the other group .is held in depressedposition. Operating cords 23 are connected to the sides of .the frames 17, opposite tothat to which the Asprings are. connected, .for .moving the .frames against the tension of the springs,

.the springs returning the heddle frames to normal 'position when the pulling action` ceases. These, operatingcords are actuated by the-usualv dobby mechanisnna portion,

lof which lis shown at 241, .in .Figures 3 and l 4,'Y of the drawings,

Tf distinguish the v'elevating and depressing hedd-le frames, those which 'are adapted to be'clevated are designated bythenumeral v.17 ,while those which are described as movi in fheight thantheformer, althoughthis is ing downward are designated'by the nu-r meral '17, thelatter being slightly greater l not necessarily vthe case. v

warp threads passed through the `mail eye of each hook .14, andthe ten ends therefrom vproper intervals, diiferentltinds lof :twills ,t-

` f il() passed through the slots of the heddles in the Vfollowing manner: The first end is passed through the first heddle of the rst third end .is passed through the first heddle of the'third frame 17v and thence through i the first heddle of the third frame 17 rThis A is Aproceeded with until the sixth end is` the second heddle of the first frame 17, and the second heddle of the first frame v171. This method is continued until all `of the ends from .all of the hooks have been passed through slots .in the heddlesgof the heddle frames 17 and 17 Y By this'construction, and in accordance with the illustration given, the number of hooks used is the same as .is ordinarily used, but the number of warp. threadsis increased ten times, thus permitting a finer quality of fabric to be woven, and also permittingv individual manipula'- tion of these warp ends whereby to dispose binder threads on each face of the fabric, `at the places desired. This is especially useful in weaving patterns on fabrics, and in producing satin weaves.V

Thus the machine provides a succession reached, said sixth end beingpassed through n of main sheds of the warp threads in groups f `of ten, or more, and a succession ofsecond-A ary sheds of the individual warp ends, after leaving the .mail eyes. f

.It is to be understood that by running more or less threads through the VAm'aileyes l1, the quality of the fabric can be changed. lintherinore, by -increasing or decreasingy the number lofheddle frames, in the sets of` frames, and entering thethreads from the mail eyes through the vheddles of said frames` and raising and depressingl same, at f the can be produced. y d Y Theparticular `arrangement -of the slots vofthe heddles .permits the Vregularshed of the hooks 11i, without disturbing the heddles of the frames, and whereby when certain of the heddle frames 17 are raised to produce the` binders on lone face of the fabric, vother heddle frames y.17 may be depressed 4in posi. tionto produce the binder threads on the other face ofthe fabric, as is obvious, `As each frame17 or 17 is moved it carries with it every fifth ythreadof the entire 'nurnber of warp thread ends, which come from llVhat yis claimed is: y ,i

The combination withL ajacquarci.mecha.y nisin with its string carrying mail eyes, and

l adobby mechanism,'of a groupofthreads For purpose-of illustration there are tenv disposed through each of the mail eyes, and

izo

said groups, said means being operable by said dobby mechanism for raising and 10W- ering certain of said individual thread ends to produce binders on the opposite faces of the fabric, said means including individually opera-ble frames, heddles in said frames, the heddles of certain of the frames having slots extending from points adjacent one end and terminating intermediate the ends i thereof, While the slots of the other heddies extend from points adjacent the other ends of theheddies and terminate beyond the 1ongitudinai centers thereof In testimony whereof, I aiix my signature. 4 RENE A. .MACHON

Images