US570703A - Jacquard mechanism for looms - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1.

EQW. FRANCE & J. BUCKLER. JAGQUARD mnommsm FOR LOOMS.

Nd. 570,703. Patented Nov. 3, 1896.

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E. W. FRANCE 8: J. BUC-KLBR.

JAGQUARD MECHANISM FOR LOOMS.

No 570,703. Patented Nov. 3, 1896. 1

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UNITED- STATES PATENT ()FFICE.

EDlVARD XV. FRANCE AND JAMES BUCKLER, OF PHILADELPHIA,

PENNSYLVANIA.

JACQUARD MECHANISM FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 570,703, dated November 3, 1896.

Application filed January 14, 1896. Serial No. 575,500. (Nomodel) To all whom it may concern.-

Be it known that we, EDWARD FRANCE and JAMES BUCKLER, citizens of the United States, and residents of the city of Philadelphia, State of Pennsylvania, have invented certain new and useful Improvements in Jacquard Mechanism for Looms, of which the following is a description.

Our invention relates more particularly to Jacquard mechanism for use in the manufacture of ingrain carpets, in which, generally, as is well understood by those skilled in the I art, two lifting-boards reciprocating continuously and in opposite directions operate two sets of tail-cords which control, respectively, the two sets of warp-threads forming the ground and the two sets of warp-threads forming the figure of the fabric. This arrangement is suitable where four sets in warp and filling are operated in rotation; but when a weave is required which calls for an odd number of picks or an interior pick'it will be seen that the same set of threads cannot be lifted for two or more consecutive picks because of the opposite reciprocations of the liftingboards. To illustrate, when white and olive in the ground and scarlet and black in the figure are used in rotation the alternatelyreciprocating lifting --boards and tail-cords effect the desired result; but when the picks required in the weave are white and olive and scarlet, black, and olive it will be seen that the olive threads must be lifted for two or more consecutive picks, which cannot be effected by the alternate reciprocations of the lifting-boards.

In our invention griffs are substituted for the lifting-boards and hooks for the tail-cords, two griffs reciprocating continuously and in opposite directions being provided in place of each lifting-board, and two hooks adapted, respectively, to engage adjacent bars of the reciprocating griffs in place of each tail-cord. When an even number of picks is required in the weave in rotation, as white and olive and scarlet and black, a pair of oppositely-reciprocating grilfs, one in the back and one in the front set, perform the function of the lifting-boards and effect the result; but when an odd number of picks or an interior pick is required in the weave, as white and olive and scarlet, black, and olive, necessitating two or moreconsecutive lifts of the olive threads, then the second pair of oppositely-reciprocating griffs are brought in to engagement with their hooks and efiect the desired result.

The mechanism is illustrated in the accompanying drawings, in which Figure 1 is a side elevation showing the position of the parts for effecting the usual function of tailcords and lifter-boards or for forming the shed by lifting the sets of warp-threads in regular order, and Fig. 2 is a side elevation showing the griffs shifted both horizontally and vertically to illustrate the manner of lifting the same set of warpthreads for consecutive picks.

The Jacquard frame 1 is provided with carriages 2 and 2, which are adapted to move horizontally in suitable ways 3 and 4 and 3 and 4 of the Jacquard frame. This horizontal movement of the carriages is eifected by means of a toggle having its links 5 and 5 pivoted to the carriages at 6 and 6, while its v knee 7 is pivoted to a vertically-movable rod 8. A block 9, which is free to move in the guideway 10 of the frame-column 11, receives the pivot which connects the rod .8 with the toggle-knee, which block 9 and the keeper l2 guide the rod in vertical movement. An inclined arm 13 is secured to the rod 8, and a rock-lever 14, journaled in the bracket 15 and provided with a roller 16, engagesthe arm 13 and at the desired interval is operated to elevate the rod and move the carriages to the position shown in Fig. 2. The arm 13 may be operated by the ordinary jack and box chain.

The carriages 2 and 2 have the central columns 18 and 18, provided, respectively, with the vertical guideways l9 and and 19 and 20', in which the standards 21 and 22 and 21 and 22reciprocate. These standards are respectively secured to the gritfs 23 and2et and 23 and 24:, which theyfreciprocate, and are operated by the rods 25 'and'26 and 25 and 26, to which they are respectively pivoted. Levers 29 and 29 arejournale'd on an arbor 30, supported by the frame-column 11, the

lever 29 having its ends pivoted to the rods roo 25 and 25 and the lever 29 having its ends pivoted to the rods 26 and 26'. These levers are rocked simultaneously in opposite directions by the rods 31 and 31', pivoted to them as shown, the said rods being also pivoted to a frame 33, which is guided in vertical movement by a depending part 40, which plays in a keeper 41, secured to the loom-frame. An eccentric 32, fixed on a shaft 34:, journaled in any suitable manner, turns in the frame 33, and, through the mechanism described, rocks the levers 29 and 29 simultaneously and in opposite directions, it being evident that the grilfs 23 and 23 and also 24 and 25L will in like manner be caused to reciprocate simultaneously and in opposite directions. Each of the needles, as 35, controls four hooks, as 36 and 37 and 36 and 37, the hooks being arranged in pairs, as shown, each pair moving as a single hook and controllingasingle neckcord 39, the hooks of each pair being turned in opposite directions.

The needles are operated in the usual mannerby pattern-cards. The movement of each needle operates the hooks with which it is connected in a manner similar to that of the two tail-cords operated by each needle in weaving two-ply ingrain carpet, where a needle that is thrust back by a pattern-card causes one of the tail-cords which it controls to engage with the rising lifter-board, thus lifting the desired threads, say, in the figure, while the threads in the ground, controlled by the other of the two cords, remain down, since the lifter-board controlling the groundthreads is descending. This efiects the exchange of the warp-threads which forms the design and binds the two fabrics together, for two-ply ingrain carpet is produced by the double cloth system, and when the warpthreads forming the ground do not exchange with those forming the figure each set works on the plain weave. In the tie-up each of the two lifter-boards controls one of the two sets of warp-threads, as the front lifter-board the ground and the back lifter-board the figure.

The foregoing operation is fully explained in the work by E. A. Posselt, entitled The Jacquard Machine, and exemplified in the Knowles ingrain-carpet loom. These principles are embodied in the operation of our mechanism, which is designed to supplement them by providing means for liftingthe same set of warp-threads successively when desired.

In the position of the mechanism shown in Fig. 1 the gritf-bars 28 of the griif 24 engage the hooks 36 and the griff-bars 23' of the griif 2t engage the hooks 36, and as these grifts reciprocate sim ultaneously in opposite directions it will readily appear that the neck-cords 39 are lifted in the same manner as with the usual form of alternately-reciprocating lifterboards and tail-cords. \Vhen, however, it is desired to raise the same set of threads for consecutive picks, the rock-lever 14 is thrown into the position shown in Fig. 2, thus elevatin g the rod 8, which breaks the toggle and moves horizontally toward each other the carriages 2 and 2' and with them the grifis, which they carry. The griff-bars 27 of the grifi 23 are now brought into position to engage the hooks 37, and the griif-bars 27 of the griif23 are in like manner brought into position to engage the hooks 37, the same set of warp threads being thus lifted for consecutive picks, for as the hooks of each pair, as 36 37 are connected with the same cord when the i mechanism is in the position shown in Fig. 1 and the vertically-reciprocating bars of the grifi 24 engage the hooks 36 the cords 39 will be lifted while the griff 23 is falling, and when the mechanism is in the position shown in Fig. 2. and the vertically-reciprocating bars of the griff 23 engage the hooks 37 the cords 39 will now be lifted while the griff 24 is falling, and in like manner the grilfs 23' and 24 are caused to effect two or more consecutive lifts of the same set of cords.

It will be understood that the mechanism shown in side elevation should be duplicated on the opposite side of the machine for effecting the operation of the parts, and that various modifications and changes may be made in the details of construction without departing from the spirit of our invention.

Having described our invention, we claim as new and desire to secure by Letters Patent 1. In a Jacquard machine, hooks and neckcords connected therewith, a pair of grifis adapted to reciprocate vertically and in opposite directions, and also adapted to reciprocate horizontally and in opposite directions,

independently of the said vertical reciprocations, and mechanism for effecting the respective reciprocations of the said griffs, substantially as shown and described.

2. In a Jacquard machine, hooks and neckcords connected therewith, a pair of grifls adapted to reciprocate vertically and in opposite directions, a second pair of griffs adapted to reciprocate vertically and in opposite directions, in combination with means for cf fectingthe simultaneous horizontal reciprocation of. the two pairs of griifs and means for reciprocating the griffs vertically, substantially as shown and described.

3. In a Jacquard machine, in combination, hooks and neck-cords connected therewith, a pair of griffs and a carriage adapted to move horizontally, a second pair of griffs and a carriage adapted to move horizontally, and a toggle connecting the two carriages, substansecond lever and a pair of griifs connected therewith and adapted to be reciprocated thereby, and means for operating the levers simultaneously, substantially as shown and described."

6. In a Jacquard machine, in combination, hooks and neck-cords connected therewith, a lever and a pair of grids connected therewith and adapted to be reciprocated thereby, a second lever and a pair of grifis connected therewith and adapted to be reciprocated thereby, and means for oscillating the said levers simultaneously and in opposite directions, substantially as shown andv described.

'7. In a Jacquard machine, in combination, hooks and neck-cords connected therewith, a lever and a pair of griffs connected therewith and adapted to be reciprocated thereby, a second lever and a pair ofgriffs connected therewith and adapted to be reciprocated thereby, and an eccentric connected with each of said levers, substantially as shown and described.

8. In a Jacquard machine, hooks and neckcords connected therewith, a carriage adapted to reciprocate horizontally, a pair of vertically-reciprocating griffs' carried by the said carriage, and means for imparting horizontal movement to the carriage'and vertical movement to the grids, substantially as shown and described.

9. In a Jacquard machine, hooks and neckcords connected therewith, a carriage adapted to reciprocate horizontally, and a pair of vertically-reciprocating griffs carried by the said carriage, in combination with a second carriage adapted to reciprocate horizontally, a second pair of vertically-reciprocating grids carried by the said second carriage, and means for impartinghorizontal movement to the car- 40 riage and vertical movementto the griffs, substantially as shown and described.

10. ha Jacquard machine, in combination, hooks andneck-cords connected therewith, a

carriage and a pair of grifis carried by the said carriage, a second carriage and a pair of grids carried by the said second carriage, and a toggle connecting the two carriages, substantially as shown and described.

11. InaJ acquard machine, hooks andneck- 5o cords connected therewith, a pair of carriages, a toggle connecting the said carriages, a pair of grifEs supported by each carriage, a rod connected to the knee of the said toggle, an inclined arm secured to the said rod, and a lever adapted to engage the said inclined arm and elevate the said rod, substantially as shown and described.

In testimony whereof we have hereunto set our hands, this 13th day of January, 1896, in the presence of the subscribing witnesses.

EDWARD W. FRANCE. JAMES BUOKLER. In presence of THOMAS SOVEREIGN GATES, CHARLES N. BUTLER.

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