US541643A - Double faced fabeics - Google Patents

Description

(No Model.) 6 sheets-sheet 1.

W. WEAVER.

JACQUA'RD MECHANISM FOR WEAVING DOUBLE PAGED FABRICS. No. 541,643. Patented June 25, 1895.

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No. 541,643'. Patented June 25, 1895.

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^ W. WEAVER. JAGQUABD MBCHANISM POR WBAVING DOUBLE PAGED FABRICS. No. 541,643.

Patented June 25, 1895.

weowo UNITED STATES PATENTv OFFICE.

WILLIAM WEAVER, OF NORWALK, CON N ECTICUT, ASSIGNOR TO THE WEAVER JACQUARD AND ELECTRIC SHUTTLE COMPANY, OF SAME PLACE.

JACQUARD MECHANISM FOR WEAVING DOUBLE-FACED FABRICS.

SPECIFICATION forming part of Letters Patent No. 541,643, dated .T une 25, 1895. iippiicannfueaiulj19,1894. Seriana'. 518,046. (Nomad.)

To @ZZ whom, it may concern:

Be it known that I, WILLIAM WEAVER, a citizen of the United States, residing at'Norwalk, county of Fairfield, and State of Connecticut, have invented certain new and useful Improvements in Jacquard' Mechanism for Veaving DoubleFaced Fabrics; and I do hereby declare the following to be a full, clear, and exact description of the invention, such Io as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to an improvement in Jacquard mechanism for looms.

It has for its object to provide mechanism of the character described, which may be applied to any loom of approved construction, and by the use of which a doublefaced fabric may be Woven, the patterns on each side of the fabric being totally different in design.

2o In the accompanying drawings, forming a part of this specification, and in which like letters and figures of reference indicate correspending parts, Figure 1 is a side elevation, parts being in section, illustrating the position of the parts when the depressing and lift-ing boards, respectively, are in their normal elevated and lowered positions. Fig. 2 is asimilar view of the opposite side of the invention, illustrating the position of the parts when the 3o depressing board is lowered.. Fig. 3 is a front elevation of the invention, parts of the upper pattern cylinder being partially removed to illustrate the position o f the needles. Fig. et is a Vertical sectional View taken on the line x of Fig. 3, the lifting board being shown in its elevated position. Fig. 5 is a detail perspectiveA view, parts being broken away, illustrating the construction and arrangement of the slots in the needles `and the lifting and depressing boards and their relative arrangement with respect to each other. Fig. 6 is a vertical sectional View taken longitudinally through one of the needles and the depressing board, illustrating more particularly the position of the cords andneedles with respect to the pattern roll just previous to the depression of the first cord of the series, parts of the needles and pattern cylinder being broken away. Fig'. 7 is a similar View show- 5o ing the position of the second cord'just previous to its being lowered by the depressing board. Fig. 8 is a similar view showing the position of the third cord just previous toits or adjacent to any ordinary loom.

beinglowered by the depressing board. Fig. 9 is a similar view illustrating the position of 55 the fourth cord just previous to its being lowered by the depressing board. Fig. l0 isa similar view showing the'position of the fifth cord just previous to its being-lowered by the depressing board. Fig. ll isadetail sectional 6c view, parts being broken away, of one of the pattern cylinders; and Fig. 12 is a detailside elevation of the cams which operate the lifting and depressing boards, said cams being shown in their initial position.

I am aware that, heretofore, Jacquard mechanism has been devised for weaving doublefaced fabric, the pattern on both sides being identical in design, but different in color. This may be accomplished with myinvention, 7o but in addition to'this, a double-faced fabric may be woven with my machine, the patterns on the two faces of which are-entirely distinct as to design, although the same number of colors may be used in each pattern, or each pattern may be woven. of different colors.

W'ithv these ends in View my invention con` sists of a slotted depressing board and a similar lifting board vertically aligned with, and designed to be operated alternately with the 8o depressing board, to lower and elevate the warp-supporting cords respectively.

It further consists in a series of needles which engage and are regulated in their movement by pattern cylinders, for automatically determining the proper warp supporting cords to be elevated or lowered; and finally it consists in the general construction and arrangement of the parts as claimed for accomplishing the purposes of my invention. 9o

In the accompanying drawings: A represents the frame adapted to be secured upon (Not shown.)

B is a vertically reciprocating lifting board guided in its movement by means of projections 1 which engage vertical slots 2 ineach side of the frame A.' Connected to the lifting board, on opposite sides'thereof, are Y-shaped arms 3, which project vertically downward roo therefrom and are pivotally connected to the ends of lever-arms 4 which are in turn pivoted at 5 to the frame. The lower ends of the Y- `shaped arms 3 are provided with cam faces 3a, the purpose of which will be described :o5 farther on.

A reciprocating movement is imparted to the lever-arms 4 and from them to the Y- shaped arms 3 and lifting board B, by means of cams G, which are secured at each side of the machine upon a transverse shaft 7. The cams G are s0 constructed as to lift the lifting board B and return it to its normally lowered position, where it is allowed to dwell while a depressing board E (hereinafter referred to) is being lowered and returned to its normal position.

The lifting board B s provided with transverse series of slots 8, 9, 10, and 11 of different relative lengths. These series of slots are duplicated across the lifting board to correspond to the number of spaces in the reed of the loom. (Not shown.)

The slots 8, 9, 10, and 1l are each'formed with enlargements 8' and with narrower portions S2, which merge into said enlarged portions to form a continuous and unobstructed passage between them. The slots 8 are each formed with three enlargements S equally spaced apart, and connected together to form a continuous and unobstructed passage from one to the other, by two narrower portions 82. The slots 9 consist of two enlarged portions S' connected by a' narrower portion 82 formed intermediate of said enlargements. The slots 10 are of the same shape as the slots 9. rlhe slot l1 is formed with an enlargement 8 and a narrower portion S2 merging with said enlargement. These slots S, 9, 10, and 11 are arranged transversely across the lifting board inline with one another.

Arranged below and parallel to the lifting board are a series of slotted needles C, one needle being provided for each series of slots S, 9, l0, and 11. These needles are supported near their front and rear ends in the frame A and are adapted to move independently `toward a pattern cylinder D,journaled in the frameA. This pattern cylinder D is provided in its face with annular series of recesses l2, each recess being of the same diameter and depth. One of these annular series of recesses 12 is provided for each needle C and each recess of a series is designed to be successively brought into alignment with the point of its needle. i

In order to vary the extent of the forward movement of the needles C, thimbles 12a of different depths are used. Said thimbles are adapted to be inserted into the recesses 12 and the inside diameter of said thimbles is sufficiently large to permit the ready insertion and withdrawal of the needles C. Vhen it is desired to prevent the forward movement of the needles C a solid plug 12" of the same size and shape of the thimbles 12aL may be inserted into the proper recess 12 and thus the forward movement of the needle is prevented. The depth of the thimble 12.a which a needle engages determines the extent of the forward movement of said needle, and the extent of the forward movement of the needle determines the color or character of the warp thread to be next raised at the next elevation of the lifting board B, as will appear farther on.

By the employment of a thickly recessed pattern cylinder C and of the thimbles 12a of varying depths which may be inserted into the recesses l2 of said cylinder, it will be evident that the pattern of the fabric being woven may be readily changed by shifting the relative positions of the thimbles in the cylinder, and thus the necessity and expense of making new pattern devices, whenever it is desired to change the design or pattern of a fabric, is obviated. The construction of the pattern cylinder is best illustrated in Fig. 11 of the drawings.

A step by step rotary motion is imparted to the pattern cylinder D by mechanism described farther on, to bring the recesses 12 in the face thereof into alignment with the needles C, to be engaged successively thereby.

As stated above, the needles C are each provided with a series of slots or bearings 13, 14,15, and 16, of different relative lengths, which normally coincide with the slots 8, 9, 10, and 11 in the lifting' board. (See Fig. t5.)

Of the slots 13, 14, l5, and 16 the slot 13 is the longest, and the slot 14 the shortest, the slot 15 being longer than vthe slot 14 and the slot 16 longer than the slot 15.

A vertically reciprocating depressing-board E, identical in construction with the liftingboard B, is arranged within the frame A, in vertical alignment with the said lifting board, and is guided in its movement by projections 17 on each side thereof, which engage the vertical slots 2 in the said frame. To opposite sides of the depressing-board E Y-shaped arms 1S are connected, which arms project downward therefrom and are pivotally connected to the ends of pivoted lever-arms 19. A vertically reciprocating movement is imparted to these lever-arms 19 and from them, through the Y-shaped arms 18, to the depressing-board E, by means of cams 2O located at opposite sides of the frame upon the transverse shaft 7. The lower ends of the Y-shaped arms 1S are formed with cam faces 18, the purpose of which will presently appear.

The cams 2O and 6, which reciprocate the depressing-board and lifting-board respectively, are arranged upon their shaft 7, to operate said boards alternately, as follows: Then the liftingboard B is lifted, as shown in Fig. 4, the depressingboard E will remain in its normally elevated position until the lifting board B is returned to its initial lowered position, whereupon the depressing-board E will be lowered and returned to its normally elevated position, during which movement the lifting-board B will remain stationary, and so on, this alternate movement of the boards l and E being repeated.

The depressing board E is provided with transverse series of slots 8a, 9, l01L and 11, which slots or bearings are of different relative lengths. Each of these series of slots is duplicated across the depressing'board to cor- IOC.-

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'respond to the number of spaces inthe reed of the loom. (Not shown.) The slots 8, 9, 10a

and l1a are formed with enlargements S3, and' with narrower portions 84, which merge into the enlarged portions 83 to form acontinuous and unobstructed passage between them, and the said slots 8a, 9a, 10a and 11 are identical in construction with the vslots 8, 9,10, and 1l respectively of the lifter B.

Arranged above the depressing board E and extending parallel thereto are a series of slotted needles F which are su-pported near their opposite ends in the frame A. One of these needles is provided for each series of slots 8, 9a, 10a and 1l, and each needle'has a series of slots or bearings 133,14, 15a and 16 of different relative lengths Y formed therein, which normally coincide with the slots 8a, 9, 10a and l1a in the depressing board E. ,The needles F are adapted to reciprocate horizontally and to move independently. toward a pattern cylinderGjournaled in theframeA. A, step by step rotary movement is imparted to the pattern cylinder G by mechanism which will be presently described.

The pattern cylinder G is provided in its face with an annular series of recesses 2l, all of which are the same in depth. Oneof these series of recesses is provided for each of the needles F and each recess in a series is rota'ted successively into alignment with the points of said needles. Thimbles 2la varying in depth, are adapted to be inserted into the recesses 2l to limit the forward movement of the needles F, which engage the holes in said thimbles. When it is desired to prevent the needles Ffrom moving forward solid plugs 21b of the same shape and size of the thimbles 2l2L are inserted into the recesses 2l. 1t will be evident from this that the needles F will be permitted to move forward a distance corresponding to the depth of thc thimbles 2la which they engage, and the extent of the forward movement ofthe needles determines the color or character of the warp thread to be lowered at the next depression of the depressing board E, as will presently appear.

From the above it will be noted that the lifting and depressingboards B and E and their operating mechanism and the pattern devices adjacent to said lifting and depressing boards, are identical in construction and operation.

- ber Qf colors may be used.

I have illustrated my machine as being adapted for weaving a fabric of tive colors, although it will be understood that any num- In weavingafabric of five colors the warps are separated into bunches, each of which contains one thread of each color used, and rthe five different threads are passed through one space in the reed. Each of the warp threads, however, is

threaded through an eye 22 of warp-supporting or tail cords 23, 24, 25, 26 and 27. Figs. 2 and 3.)

(See These cords are elevated and lowered to open the shed, by the action of the lifting and depressing boards in the mantail cords 23, 24, 25, 26 and 27 are secured at their upperends to rods 29, eachof which is encircled by a spring 30a, against the action of which springs the rods are pulled downwardhy the cords 23, 24, 25, 26 and 27. Each of these cords extends vertically downward from the rods 29 and is provided with knots 30 and 31, the former ofwhich is located below the depressing-board E, and the latter above the lifting-board B. These knots 30 and 3l are sufficiently small to 4permit their easy passage through the enlargements 8 and 83 of the slots in the lifting and depressing boards, respectively, while theyr are too large to pass through the narrower portions 32 and 84 ofsaid slots., The warp-supporting or tail cords 23 and 24 pass through the slot 13:L in

the needles F, the slot Si in the depressing board E, the slot 8 inthe lifting-board B and the slot 13 in the needles C, respectively. The warpsupporting or tail cords 25 pass through the slot 14a in the needles F, the slot 9a in' the depressing-b oard E, the slot 9 in the lifting-board and the slot 14 in the needles C, respectively.' The warp-supporting or tail cords 26 pass through Vthe slot 15a in the needles F, the slot 10 inthe depressingboard E, the slot l0 in the lifting-board B, and the slot l5 in the needles C, respectively; and the warp-st'lpporting or tail cords 27 pass through the slot 16 in the needles F, the slot 1la in the depressing-board E, the slot ll in the lifting-board B, and through the slot 16 in the needles C, respectively.

The relative arrangement of the warp-supporting or tail cords 23, 24` 25,26 and 27, the needles C and F, and the lifting and depressing boards B and E, is best illustrated -in Figs. 4 and 5 of theldrawings.

The position of the warp-supporting or tail cords 23, 24, 25, 26 and 27 in the slots S, 9, 10 and 1l of the llifting-board B, determines which one is to belifted at the next elevation of the said board B, and the position of said cords in .the slots 8a, 9, 10 and 11L determines which cord of the series is to be lowered at the next depression of the depressing-board E; it being understood, of course, that only one cord of each of the series 23, 24, 25, 26and 27 may be lifted or depressed at one time, but differ- ICO ent cords in the duplicate series of the warpsupporting ortail cords 23, 24, 25, 26 and 27 may be so lifted at the same time or dethimbles l2a and 2liL in the pattern-cylinders D and G, respectively, which the needles C and F are engaging. 1

In illustrating the positions assumed by the needles F to shift the Warp-supporting or tail cords 23, 24, 25, 26 and 27, (see Figs. 6, 7, 8, 9, and 10,) only the depressing board E, the needles F and portions of the pattern cylinderG are shown, as the positions of the warp-supporting or tail cords 23, 24, 25, 26 and 27 in the slots 8, 9, 10 and 1l of the lifting-board B are identical with those which they assume in the corresponding slots of the depressingboard E, and it is not considered necessary to illustrate both the lifting and depressing boards in each of said gures. So in the description which immediately follows, ofithe position of the warp-supporting or tail cords 23, 24, 25, 26 and 27 in the slots of the depressing board E, it will be borne in mind that they occupy the same position in the slots of the lifting board B.

When the points of the needles are bearing upon a plug 2lb of the pattern cylinder G, they are in their initial position, and when in this position the warp-supporting or tail cords 23 al'e moved into the narrow portions 84 of the slots 8a of the depressingboard E, as shown in Fig. 6, in order that when the depressing-board is depressed the knots 3l of the cords 23 will i be engaged at the next movement of the depressing-board and the cords and their cor responding warp threads will be lowered.

lVhen the needles E engage the thiinbles 2la of the least depth, the needles will move forward a distance corresponding to the depth of the holes in said thimbles, and the warp supporting or tail cords 24 will be moved into the narrow portions 84 of the slots 8,in order that the knots 31 may be engaged, at the next lowering of the said depressing-board, to move the warp-supporting or tail cords and their warp threads correspondingly. (See Fig. 7.)

In Fig. 8 of the drawings one of the needles F is shown as engaging the hole in a thimble 2la of greater depth than that shown in Fig. 7, to move the cord 25 into engagement with the narrow portion 84 of the slot 9. Consequently when the depressing-board is lowered the knot 3l on said cord will be engaged by the depressing-board and the cord 25 moved correspondingly.

Fig. 9 illustrates one of the needles F engaging the hole of a thimble 2l of the second greatest depth, to throw the warp-supporting or tail cord 26 into the narrower portion 84 of its slot 10, to be lowered at the next movement of the depressing-board E.

Fig. 10 illustrates one of the needles F engaging the hole of athimble2la of the greatest depth, to move the warp-supporting or tail cord 27 into engagement with the narrow portion 84 of its slot lla to be lowered by the depressing-board at its next movement.

Whenever one of the warp-supporting or tail cords 23, 24, 25, 26 or 27 is moved by the needle Cor F into the narrow portion 82, or 84, of one of the slots 8, 9, 10, and 1l or 8, 9, 10a and l1a of the lifting and depressing boards, respectively, the remaining cords will be shifted into the enlarged portions 8', or 83, of

said slots, in order that the knots 30, or 3l, in said remaining cords may pass freely therethrough at the next movement of the lifting or depressing boards. From this it will be seen that only one of each series of cords 23, 24, 25, 26 and 27 may be raised or lowered at the same time. i

` Both series of needles C and F are withdrawn from engagement with their respective pattern-cylinders D and G shortly after the lifting or depressing boards B, E, start on their respective upward and downward movements, and the pattern-cylinder of whichever board `B, E, heilig operated is rotated one step forward to bring a diiferent line of recesses in front of theneedles C, F, while the other cylinder remains stationary. This may be accomplished by various means, but I will now describe that which in practice I have found to he the most effective.

The needles O and F, pass through the crossheads I-I and I respectively, near their rear ends and are permitted to move independently of said cross-heads. Springs 33, 34 are interposed between the cross-heads H, I, and the frame A and encircle each of the needles of the series C, F, respectively. These springs bear against the frame A at their rear ends and are connected to the needles at their forward ends. The cross-heads are guided in slots 35, 36 in each side of the frame A and are secured to horizontal frames 37 arranged on each side of the frame A and extend parallel therewith to the front thereof. The forward ends ot' these frames 37 are bifurcated, and have slots 3S, and 39, formed therein. The slots 38 in said frames are engaged by pins 40, from the upper ends of levers 41, which are arranged on each side of the frame A said pins resting normally in the rear ends of said slots. (Sec Fig. l.) The levers 41 are pivoted near their centers to the frame A and at their lower ends to transverse rods 42, the forward ends of which rods engage the cam faces 3a of the Y-shaped arms 3. These rods 42 are guided in boxes 43 of the frame A, and are encircled by springs 44, which tend to keep them into engagement with the cam faces 3 of the arms 3. From this it will be seen that at each elevation of the Y-shaped arms'3 and their lifting board B, the rods 42 will be pressed forward by the action of the cams 3fL thereon, and the upper ends of the levers 4l thrown rearwardly, which action will cause the horizontal frame 37 to be moved correspondingly to operate the cross-heads I-I and I and withdraw the needles C and F simultaneously from engagement with their respective pattern-cylinders D and G.

Levers 44 constructed similarly to levers 4l are likewise arranged on each side of the machine adjacent to said levers 4l, and are provided at their upper ends with pins 45 which engage the rear ends of the slots 39 of the horizontal frames 37. These levers 44 are pivoted at about their centers to the frame A, extend downwardly at the side thereof and ICO IID

are pivoted atgtheir lower ends to transverse rods 46. These rods are guided in boxes 47 of the frame A, and have theirforward ends pressed into engagement withthe cam-faces? 18a of the Yj-shaped arms `18, by means of sprin`gs48 arranged in the guide boxes47 and encircling the rods 46. -From this itwill appear that whenever the Y-shaped arms 18 are depressed'the rods 46 will be moved forward and the upper ends of the levers 44 rearwardly. The rearward movement of the levers 44 will move the horizontal frames 37 and their attached cross-heads Hand I correspondingly' and thus the withdrawal of the needles C and F simultaneously from engagement with theirl respective pattern-cylinders. D, G, will be ef-L fected. f

` By means of the mechanism described above itwill be obvious that at each elevation of the lifting-board B and lowering of the depressingboard E, both series of needles C, F,-will be withdrawn from engagement with the pattern cylinders D and G, and only upon the return of said boards to their normally-lowered and elevated positions will the needles be again moved by the springs 33, 34invto engagement with their pattern cylinders.

Secured upon one en d of the shaft 56 of the pattern-cylinderD is a ratchet wheel-5,1. A lever 52 is journaled upon said shaft adjacent to the ratchet-Wheel, and carries a pawl-53, which engages said ratchet-wheel. The end of the lever 52 is provided with a pin 54 which engages a slot 55 in one end of a horizontal lever 56. This lever 56 is pivoted at its other end to one ofthe levers 4l, in order that when this latter leveris moved rearwardly the lever 52 will be moved correspondingly and its pawl 53 move the ratchet-wheel 51 and the patterncylinder D one step.

As it may sometimes be desired to turn the pattern cylinder D backward I have provided mechanism for accomplishing this. This mechanism consists of a ratchet-wheel 57 journaled upon one end of the shaft and designed to be rotated in an opposite direction to the ratchet-wheel 5l, adjacent to which it is secured. A lever 58 is journaled upon the shaft 50 adjacent to the ratchet-wheel 57 and is arranged diametricall y opposite to the lever 52. This lever 58 is provided with a pawl 59 which normally hangs out of engagement with the ratchet-wheel 57 and is designed to be drawn up into engagement with it by means of a cord Opassing over a pulley 6l and extending downward to a point within easy reach ofthe operator. At the same time the pawl 59 is thrown into engagement withv its ratchet-wheel 57 to move it, the pawl 53 is lifted from its ratchet-wheel 5l by means of a branch 62 of the cord. 60, to allow the pattern cylinder to be turned back. (See Fig. l.)

The mechanism for rotating the patterncylinder G forward and for turning it backward is identical vin construction and operation with that described for operating the pattern-cylinder D, and consists of a ratchetwheel'65 secured upon the shaft 66 of the pattern-cylinder G. Adjacent to said ratchetwheel on the shaft 66 is journaled a lever 67 carrying a pawl 68, which normally engages the ratchet-wheel 65. This lever -67 Vis provided atr its upper end with ar pin 69 which engages a,slot.70 of a horizontal lever 7l. This lever 71.is pivoted to the lever 44 and is `carried rearwardly therewith tomove the lelift the said lever upward and thus causeits pawl 73 to engage and move its ratchet-wheel 72, and to simultaneously lit't the pawl 68 out of engagement with its ratchet-wheel 65. Theiwarp-supporting or tail cords 23, 24, 25, 26 and 27 are maintained in a vertical position by means of a comber-board 8O through I which they pass. This board is arranged between the frame A and the loom.

The operation of the machine above described is as follows: Assuming that the lifting anddepressing boards are in their normal position and the needles C and F in engagement with their respective pattern-cylinders D and G, (as shown in Fig. l) the lifting-board B will be elevated,.causing one of eachseries of warp-supporting or tail cords 23, 24, 25, 26 and 27 to be lifted. When these cords are lifted the warp threads, which pass through the eyes 22 thereof, will be drawn upward, thereby opening the shed to permit a threadcarrier or pile wire being passed through it. Simultaneously with the elevation of the lifting-board both series of needles C and F will be withdrawn from engagement with their pattern-cylinders and the lower one of said cylinders D will be rotatedone step forward. When the lifting board is lowered the needles C and F are again permitted to engage their respective pattern-cylinders D, G. pressing board E will then be lowered, carrying one of each series of warp-supporting or tail cords 23, 24, 25, 26 and 27 and their cor? responding warp threads downward, to open the shed upon the under side of the fabric and permit the passage therethrough of a thread-carrier or pile wire. Simultaneously with the lowering of the depressing-board E the needles C and F are withdrawn from engagement with the ,pattern-cylinders D and G, and the pattern-cylinder G is rotated one step forward, while the pattern-cylinderD remains stationary.

The advantages of the several parts of my improvements willl be appreciated by those skilled in the art to which it appertains; and within the scope of my invention as defined in the following claims, modifications may be The de- IOO lIOl

made in the form, construction and position of the parts, and some of the features of my invention used Without others, since Nhat I claim ism l. In Jacquard mechanism for looms, the combination of the lifting and depressing boards, each provided with slots of varying widths and lengths, means for operating the lifting and depressing boards, the Warp-supporting' cords engaging the slots of the lifting and depressing boards, and pattern controlled devices for shifting the Warp supporting cords in the slots of the lifting and depressing boards, substantially as described.

2. In Jacquard mechanism for looms, the combination of the lifting and depressing boards, means for operating the same, the shifting needles arranged adjacent to said boards and provided with bearings of different lengths pattern devices for regulating the movement of the shifting needles, and the warp-supporting cords, substantially as described.

3. In Jacquard mechanism for looms, the pattern cylinder provided with recesses of uniform depth and thimbles of varying depths engaging said recesses, substantially as described.

et. In Jacquard mechanism for looms, the combination of the warp-supporting devices suitable lifting and depressing mechanism, the shifting-needles, provided with bearings, of different lengths, and needle-engaging devices of different depths, substantially as described.

5. In Jacquard mechanism for looms, the combination of the needle-engaging devices of different depths, the shifting-needles adapted to be regulated in their movement by said devices, each of said needles being provided with bearings of different lengths, the warp-supporting cords, the lifting and depressing-boards, provided with slots of varying widths and lengths, and means for operating the lifting and depressingboards, substantially1 as described.

G. ln Jacquard mechanism the combination of the Warp-supporting cords, suitable lifting and depressing-mechanism, pattern devices, the shifting-needles adapted to be regulated in their movement by said pattern-devices, each of said needles being provided with beari ings of diiferentlengths, substantially as described. l

7. In Jacquard mechanism for looms, the combination of the lifting and depressing boards provided with slots of varying widths and lengths, means for operating the lifting and depressing boards, the warp-supporting cords, the pattern-devices and the shiftingneedles regulated in their movement by the pattern-devices, each of said needles being provided with bearings of different lengths, substantially as described.

S. In Jacquard mechanism, the combination of the rods 29, the springs 30, the warp-snpporting cords connected to said rods, and means for` lowering said cords and rods against the action of said springs, substantially as described.

S). In Jacquard mechanism, the combination of the warp-supporting cords,lingoes to which the lower ends of said cords are connected, the spring-controlled rods to which the upper ends of said cords are connected, and lifting and depressing mechanism for elevating and lowering said cords, substantially as described.

10. In Jacquard mechanism for looms, the combination of the lifting and depressing boards, means for operating the same, the Warp-supporting cords each provided with enlargements arranged above and below the lifting and depressing boards respectively, and pattern-controlled mechanism for shifting the warp-supporting cords into engagement with the lifting and depressing boards, substantially as described.

l1. In Jacquard mechanism for looms, the combination of the lifting and depressing boards provided with slots of varying Widths and lengths, means for operating the lifting and depressing boards, the warp-supporting cords engagingV the slots of the lifting and depressing boards each of said cords being provided with enlargements arranged above and below the lifting and depressing boards respectively, the pattern-controlled mechanism for shifting the warp-supporting cords in the slots of the lifting and depressing boards, substantially as described.

l2. In Jacquard mechanism for looms, the combination of the lifting and depressing boards, means for operating the same alternately, pattern-devices arranged adjacent to ,the lifting and depressing boards respectively, mechanism for rotating said patterndevices alternately as the lifting and depressing boards are elevate l and lowered, the shifting needles adapted to engage the patterndevices, the warp -supporting cords, and means for simultaneously withdrawing the shifting needles from engagement With the pattern-devices at each elevation or depression of the lifting and depressing boards, substantially as described.

13. In Jacquard mechanism for looms, the combination of the Warp-supporting devices, means for operating the same,rthe shifting needles provided with bearings of different lengths, and needle-engaging devices of different depths, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

4 WILLIAM WEAVER. Vitnesses:

PAUL W. STEVENS, ELBERT O. HULL.

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