US530050A - Third to oscar w - Google Patents

Description

. M 1 6 Sheet s-Shet 1.

v J. (3. LIBERTY.

JAGQUARD MECHANISM FOR LOOMS.

Patented Nov. 27, 1894.

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- 1"; @IIIIIIP (N6 Model.) b'Sheets-Sheet 2. J". C. LIBERTY. JACQUARD MECHANISM FOR LOQMS.

'No, 530,050. Patented Nov. 27, 1894.

(No Modl.) a Sheets+Sheet 3.

J. O. LIBERTY. JACQUARD MEGHANISM FOR LOOMS.

No. 53050 Patehted Nov. 27, 1894.

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(No Model.)

J. 0. LIBERTY.

I JAGQUARD MECHANISM FOR Looms.

No. 530,050. Patented Nov. 27, 1.894.

no Model.) 0 "6 sheets-sheet 5; J. 0.LIBERTY.

JAGQUARD MBGHANISM P011 LOOMS. N0. 530,050. Patented NOV. 27, 1894.

(No Model.) 6 SheetsSheet 6,

J. O. LIBERTY. JAGQUABD MECHANISM FOR LOOMS.

. o. 5s0,05 0. Patented Nov. 27,1894,

Fig.6.

'3 NITED- STATES PAT NT OFFICE.

JERRY C. LIBERTY, OF EASTHAMPTON, MASSACHUSETTS, ASSIGNOR OF ONE- THIR-D TC OSCAR W. MILLER, OF SAME PLACE.

JACQUARD MECHANISM FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 530,050, dated November 27, 1 894.

Application filed December 4, 1893. Serial No. 492,720. (No model.)

To all whom it may concern:

Be it known that I, JERRY O. LIBERTY, a citizen of the United States, residing at Easthampton, in the county of Hampshire and 5 State of Massachusetts, have invented new and useful Improvementsin Jacquard Mechanism for Looms, of which the following is a specification.

The object of this invention is to improve to the construction of Jacquard looms to the end of increasing the producing capacity thereof in various classes of work, more especially fabrics having front and back warps, binder warps, fillings for the front and back, and a weft for forming the face or figure, such fabric being exemplified by webbings, the same often comprising elastic strands, as common for suspenders.

By the exercise of my present invention the shuttle employed in laying inthefilling for the front of the fabric has its operation and then when the same shuttle has its next operation forlaying in the filling for the back of the fabric, the other shuttle, often carry- 2 5 ing silk, moves simultaneously therewith for the formation of the face, or face figure, whereby the back filling and figure are concurrently formed avoiding the necessity heretofore experienced of making the shed for the 0 face or figure while the other shuttle is idle.

The invention is dependent upon the provision in the jacquard or pattern operated devices ofthe Jacquard loom of a set of hooks for supporting warps at a given, or normal, 5 level, and other hooks for supporting warps at'a lower level, means for simultaneously,-

or at one operation of the power level, moving one or more of the first hooks andwarps to form a shed above the said given level, for 40 raising one or more of the lower warps from the lower position by moving their hooks a greater distance to also form a shed above the aforesaid level, and for raising one or more otherof the lower hooks and warps from 5 the lower position only up to, or near, the said given level to form-thereby a shed between the so last raised warp or warps and a warp or warps remainingin the lower position.

The invention also involves the provision 0 in the head, or upper part of the Jacquard loom comprising the grid devices, of two sets of griff frames arranged side byside and a griff having one or more bars, which is below and subsidiary to one of the grid frames, and means for imparting a certain movement to one of the griff frames and the hooks carried thereby, also for imparting a greater vertical movement to the other griff frame and the hooks carried thereby and also at raising of the subsidiary grifi frame and the hooks carried thereby a distance fractional of that of the movement of its principal.

- The invention also involves the provision of amain griff frame for raising hook-rods and a subsidiary griff-bar, or bars,-f0r raising hooks,which are movable transversely as insured by the pattern-controlled needles engaging them, and which have members for engagement with, and to be lifted by, the bars of the principal griff when in proper 7o transversely adjusted positions, wherebyafter the principal griff hasbeen partially raised it will, in the completion of its movement, raise one or more of the subsidiary grilf bars and hooks and warps supported thereby.

Other detailed constructions and arrangements are comprised within the scope of the present invention, all as will hereinafter fully appear and be set forth in the claims.

Reference is to be had to the accompanying 8o drawings, in which- Figure l is a side elevation of the top part of a Jacquard loom with the present improvements applied thereon. Fig. 2 is acentral vertical section of the same taken from front to rear. Fig. 3 is a perspective view of one of the main grift frames and showing one of the individual griff bars, (of which there may be several) in engagement therewith.

Figs. 4 and 5 are cross sectional views of thego grifi frame taken on the lines 4-4 and 5-5, Fig. 3. Figs 6, 7, and 8 are diagram views to be hereinafter referred to in connection with the description of the operation. Fig. 9 is a section longitudinally of the fabric such as 5 elastic suspender webbing showing the front and back, binder, intermediate rubber strands and face weft.

In the drawings, A and B represent two similar griff frames, both horizontal and each, roofor instance, having four bars, or blades, a, a, each of'these griif frames being as usual to as griif B.

formed of cast iron. Each griff frame, A, B, has on its ends the studs, 1), b. The griff, A, will be hereinafter uniformly termed the main griff, while the other will be referred A lever frame, 0, with duplicate side bars, d, is mounted on horizontal, pivotal supports, d at the rear of the top framing, D, of the loom and the side bars have pivotal connections, f, at their ends, and

10 pivotal connections, f half way between their ends and the fulcrum points, d with the links, b and 11 which have their upper extremities connected to the said griff frame studs, b.

A given swinging movement of the lever frame (acquired as common in this class of machines) will cause the simultaneous lifting of the grid frames A and B, the latter moving only half as fast and half as high as the front frame. The griif frames A and B are constrained in their vertical reciprocatory movements by the depending posts, g, g, which have guiding movements through the vertically apertured bosses, or hubs, 9 of the top framing D.

h, 72. represent the hook rods which are controlled by the needles, "6, and pattern card, j, in the usual manner so that when the perforations of the card permit the needles to be moved forwardly by their springs, i before the griff frames rise, the hooks at the upper ends of the so moved rods will be in positions to be engaged and elevated by the grid-blades. The hook-rods have the return-bent and hookended portions, or rests, 7L2, which have their supports when the grilf frames are down upon the stationary bars, j, commonly employed. The neck-cords, 7c, 70, connected to the looped portions of the hook-rods and passing down through the perforated comber board support, in the usual manner, the warp threads or yarns.

m, m represent the subsidiary griif bars, or blades, which may be termed sectional, or individual, griff blades, being movable transversely independently of each other. These have their positions below, and parallel with, the bars of the main griff, A,and have up right bars, or rods, m m at their ends by which they are normally supported in their positions thus stated. The shoulders, m of these rods, m resting on the support bars, j, afiord fulcrum supports for said rods where by they may have transverse tilting movements, as plain, see Fig. 2, so as to move the individual griff-blades, m, m, horizontally and bodily transversely. Said upright rods, m also have hooks, m, at their upper ends which stand higher than the normal level of the main grid frame, A. These pairs of upright bars, m are encircled by the eyes of certain ones, i, of the horizontal needles, which needles are pressed forward,-as are the other aforesaid needles, 1',-by the springs B. In the mechanism arranged as illustrated, these particular needles, t'fl-which engage. the griif-blade uprights, m ,-are held back against the reaction of their springs and thereby carry the hooks, in", of theuprightsmfi-- on which the individual subsidiary griffblades, m, are supported-into line to be engaged by a rising blade of the main griff frame, A, it being perceived that the said hooks, m normally stand at a little distance above the said main grilf, A, when it is at rest; and, therefore, the said main griif, A, has a portion of its rising movement before the griff-blade (or blades) m, to be elevated thereby, is given its rising movement. The relations of the hooks, m and blades, m, are such that when the hooks are in engagement with a bar, a, of the main griff, A, the individual griif-blades, m, are in planes coincident with the vertical planes of movement of the bars of said main grifl A. The hook-rods to be engaged by the individual grid-blades, m, have their positions, whereby they may, or not, be engaged by such blades, controlled by the card and needles, as well as are the positions of the blades, m, controlled by the cards and needles whereby they may, or not, be elevated by the main griff, A.

\Vhen the needles, '5, which control the transverse movements of the upright rods, m are permitted to enter perforations of the pattern card or board, the blade, or blades, m, controlled by such needles will, of course, not be elevated by the griff-blades above.

Referring now to the diagram views, Figs. 6, 7, and 8, and to the longitudinal sectional view, Fig. 9, wherein the arrangement of the threads of the fabric to be produced is shown, the operation of the said described mechanism will be now set forth.

In Fig. 9,-10, 10 represent the warps for the back of the fabric, 12, 12, being the filling therefor interwoven with the warps, as usual. 13,13, represent the warps for the front of the fabric,14, 14, being the filing interwoven therewith. 15 shows the longitudinal strand of rubber intermediate between front and back. 16 represents some of the warp-threads interwoven with the filling of both the front and back, and with the face weft, constituting the binder, and 17, 17, represent the weft which makes the face or figure. Such a fabric is commonly employed for elastic sus pender webbing, the warps andjfilling for the front and back being, for instance, of cotton,

while the face weft may be silk.

In the loom comprising these improvements are employed two shnttles,--one for carrying cotton for alternately laying in the filling for the front and back, while the other carries the silk, or whatever may be chosen, and works at every other pick for making the face or figure.

In Figs. 6 to 8 but a single individual griffblade, m, is shown, and it is furthermore in the present illustration sufficient to show four hook-rods for the gritf, B, an'dfour hook-rods for the combined main and individual griff, A, on, at the front, it being .understood that these hook rods are rednplicated, or multiplied, a sufficient number of times to correspond to the desired width of the fabric to be produced.

In preparing the loom, the warps are run 0d from two beams, or rolls, F, G, through the eyes, or heddles, carried by the neck-cords, and through the reed alongside of which the shuttles, n, 0, have their traverse.

The horizontal line,- w, herein termed the median line is that on which the rubber strands, when employed, are stretched, said strands having do movements in shedding. The rubber strands are indicated by the heavy black horizontal line at the level, w. When the grids are all in their normal positions, as seen in Fig. 6, the heddles supported by hookrods, coacting with grid, B, are at said level, w; and the warps controlled by said grid B, and the hook-rods and heddles corresponding thereto are the face warps, and they normally run from the heddles, rearwardly, on said level, to. The warps running from the other beam, G, are employed for constituting the back and binders and they run through the heddles which are supported by the left-hand set of hook-rods, coacting with the main grid, A, and the individual grid, m. The left-hand heddles, when the grids are in their normal positions, hold the warps running from the beam, G, depressed below said level, w, they running from the heddles thence to the said level, meeting it at the battening point, .0 Now it is understood that the shed to form the back is constituted by elevating one or more of the individual grid-blades, m, to carry one or more of the lower set of warps up to, or near, the level, w, the warps which remain down forming the lower part of the shed; and it is also to be understood that to constitute one of the lower warps a binder it is to be carried from its extreme lower position to a position above the level, w, whereby it may be interwoven with the upper filling or face weft, and such a warp is thus'elevated by means of a blade, a, of the main grid, A, having a movement double that of the grid, B, and substantially double that of the individual grid-blade 'm.

The changes from the position of the warps seen in Fig. 6 to those seen in Fig. 7 whereupon the front filling is interwoven with the face warps, as well, also, as with one of the under warps to act as the binder, are insured by the operations of the machine, as follows: Three of the needles in this example,-as the grids, A, B, ascend-permitted to move forwardly by the pattern, cause three ofthe righthand set of hook-rods to be moved into position and engaged by the grid, B, while one of the hook-rods of the other set is, by a pattern-controlled needle, moved into position to be elevated twice as high by the main grid, A. In this instance perforated portions of the pattern card, moving rearwardly to contact with the needles, t prevent the uprights, m from assuming positions of engagement relative to the bars'of the main grid, A. Hence at this operation no warp-hook is raised by the subsidiary grid. Thus is seen a shed formed by three elevated face warps and one of the elevated warps of the lower set,

changes take place to establish the positions I seen in Fig. 8, whereupon the back filling is interwoven with the back warps, the face weft is interwoven with the face warps as is also a binder of the lower set interwoven with the face-weft. Three of the needles in this example,---as the grids, A, B, ascend,-permit ted to move forwardly by the pattern, cause three of the right-hand. set of hook-rods to be moved into position and engaged by the grid, 13, whileone of the hook-rods of the front set is .by a pattern-controlled needle moved into position to be elevated twice as high by a bar of the main grid, A. In this instance, also, imperforate parts of the pattern card cause the needles, t, to have their longitudinal 'movements just about the time the top of the main grid, A, is level with the hooks, m the uprights, m moving to their positions of engagement so that the blade, m, will move upwardly with the said main grid. Another one of the needles, '5, having its end entering a perforation of the pattern-card carries one of the hook-rods, h, forwardly to its position to be engaged by said blade, m, when it reaches the height of the hook at the top of this particular hook-rod, and, therefore, one of the lower set of warps is moved from its normal low position to the level, w. Thus we see the lower shed formed by two lower warps remaining down and one lower warp at level, 10, and an upper shed formed by a level face warp, three elevated face warps, and one of the lower set of warps which has been elevated to form the binder, and at this time both shuttles, 'n, 0, which have been properly lowered, from their positions seen in Fig. 7 to that seen in Fig. 8 are shot,laying in the back filling and face weft. The vertical shifting movements of the shuttles are attained by the usual well known means at present practiced for this purpose. Of course by properly arranging the pattern-card the raising of a lower warp thread to form a binder above the median level, may be omitted at certain of the operations.

, Heretofore the operations generally neces sary to produce a fabric substantially as described by employment of the mechanisms in vogue have been to form a shed of diamond form with no level median warps and lay in one of'the fillings using one shuttle; next forming another diamond shaped shed suitably changing the warps and laying in the other of the body fillings by the same shuttle and finally forming another diamond shed using face warps and binder, and while the shuttle which had operated twice remains idle putting in the face weft by the upper 4o aforesaid duplicated horizontal sliding bars,

shuttle. In this mode it has been necessary to raise and lower alternately the rubber strands so that they maylie along with the warps forming the upper or lower parts of the shed, a disadvantageous operation, appearing doubly so in the light of the method herein described. Each of the paired uprights, m 071*, have the grid-blades, m, vertically adjustable thereon so that the blades may be at just the proper distance below the normal level of the top hooks of the hook-rods to cause by the raising of the blades a lifting of the warps controlled thereby, the desired distance proportionate to the rising movement of the other loom warps elevated by the main grid, A. The uprights are therefore formed with the ratchetlike notches, m, in their edges in one or another of which rest the lower edge of the blade, m. The blade has its ends turned to form the ears, m which lie against the sides of the upright rods, m set screws, m passing through the ears, m and the perforations, m", in the upright rods.

The cylinder, .I for the pattern-card has its usual overturning or rotational movement for bringing the next leaf of the pattern-card to the needle ends by novel means, as follows: The cylinder is journaled on theforward extremities of the paired horizontal bars, 15, which have guiding movements through the rigid slide straps, 15 ,01 the top frame, D. The cylinder has at its one end the teeth, t and there is a hooked arm, t pivoted on the end of the top frame for engagement with the teeth as the cylinder has a bodily forward horizontal movement. This movement is imparted by the cam-slotted plate, it, which is rigidly fixed to, and depends below, one of the grid-frames (here the one, B), and which receives within its slot the studs, :5 of the 15. As the grids and cam-slotted plates, u, are raised, the bars and cylinder are forced forward and in the engagement of the teeth, 25 of the cylinder with the hook, the cylinder is turned around about one-eighth of a rotation and stands with its corners vertically and horizontally. The bracket, i on the bar, 15, having the spring, 25 hearing on the front facet of the square cylinder causes the turning of thelatter the other eighth of a turn to bring the face of the pattern at right angles to the needles.

It will be observed on reference to the drawings that the blades, on, when elevated, are in same plane as the blades, a, and that at the time the grids start up the hook-rods, h, not taken by an upper main grid, A, are out of said plane of movement. Shortly after the commencement of the upward movement of the grids, A, m, the pattern cylinder has its forward movement so that the hook-rods held back and not taken by the upper grid are, by reason of their forwardly spring pressed needles,brought to the plane of engagement by the blade, m. The carrying up of lower warps, as binders, may, of course, be omitted at intervals according to the weave predetermined by the arrangement of the pattern.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

1. In a Jacquard loom, the combination with the main grid, A, and means for imparting thereto a vertically reciprocatory movement, of the vertical bars, m supporting a horizontal individual blade, m, below, and parallel with, the main grid, and having hooked upper ends which stand higher than the blades of the main grid, pattern-controlled needles which engage the said upright bars to place them free from, or by their hooked ends across the paths of the blades of the main grid, vertical rods having hooks at their upper ends which rods are supported for lateral swinging movements and with their upper hooked ends above the blades of the main grid, and pattern-controlled needles which govern the lateral positions of said hook-rods whereby the latter may be either taken up by the blades of the main grid, or, after such main grid has had part of its upward movement, taken up by the lower individually operated blade only partially as far, substantially as described.

2. In a Jacquard loom, a main grid, A, and means for imparting vertically reciprocato ry movements thereto, an individual grid blade below the main grid, a movable pattern-controlled device for coupling the main and individual grids whereby the latter may partake of the movement of the main grid, vertical rods, having hooks at their upper ends, which are supported for lateral swinging movements, and with their hooked ends above the blades of the main grid, and pattern-controlled needles which govern the lateral positions of said hook-rods whereby the latter may be either taken up by the blades of the main grid, or after such main grid has had part of its upward movement taken up by the lower pattern and needle operated individual blade, substantially as described.

3. In a Jacquard loom a main grid, A, and means for imparting vertically reciprocatory movements thereto, individual grid-blades below the main grid and movable patterncontrolled devices for coupling the main with one or more of the individual grids, whereby the latter may partake of the vertical movements of the main grid, vertical rods having hooks at their upper ends which are supported for lateral swinging movements and with their hooked ends above the blades of the main grids, and pattern-controlled needles which govern the lateral positions of said hook-rods whereby they may be taken up by the main or individual grids, or by neither, thereof,the grid, B, and pattern-controlled hook-rods which carry devices for supporting warps normally at a higher point than the warp supporting devices which are carried by the hook-rods operating in conjunction with cal movements to said griff, B, half as high as those imparted to the griff, A, substantially as described.

4; The combination with the main grid frame, of one or more individual grifE-blades, m,having the angularlyturned end ear-pieces, m", the upright-rods, m m having books at their upper ends which are adapted to engage the blades of the main griff frame, and

having the notches, m, in which rest the [0 edges of said blades, m, and the set screws, m passing through the ear-pieces and upright-rods for confining the blade immovably upon the rods, substantially as described.

JERRY C. LIBERTY.

Witnesses:

WM. S. BELLoWs, K. I. CLEMoNs.

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