US655999A - Loom for weaving double-piece figured velvet. - Google Patents

Description

No. 655,999. Patented Aug. I4, I900.

A. THARBY. LOOM FOR WEAVING DOUBLE PIECE F IGUBED VELVET.

(Application filed Sept. 25, 1899.) (No Model.) 3 Sheets-Sheet I,

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No. 655.999. Patented Aug. l4, I900.

.A. THABDY. LOOM FUR WEAVINGDOUBLE PIECE FIGUBED VELVET.

(Application filed Sept. 26, 1899.) 7 (Ne Modal.) 3 Sheets-Sheet 2,

Wlneases Invenlfor m. w -aiw 2W No. 655,999. Patented Aug. I4, I900.

' A. THABDY.

LOUM FUB WEAVING DOUBLE PIECE FIGURED VELVET. (Application filed Sept. 25, 1899.) (No Model.)

3 Sheets-Sheet 3.

Witnesses I llwenlor ANTOINE TI'IARDY, or LYONS, FRANCE.

LOOIVI FOR WEAVING DOUBLE-PIECE FIGURED VELVET.-

SPECIFICATION formingpart of Letters Patent No. 655,999, dated August 14, 1900.

Application filed September 26,1899. stun N0."731,586- (in ma.)

To all whom it may concern:

Be it known that I, ANTOINE THARDY, a citizen of the Republic of France, residing in Lyons, France, (whose post-office address is 271 Oours Lafayette, Lyons,) have invented certain new and useful Improvements in Looms for Weaving Double-Piece Figured Velvets, (for which I have made application for patents in France, No. 286,777, dated March 16, 1899; in England, provisional patent, No. 13,599, dated June 30, 1899; in Germany, filed July 7, 1899; in Austria, filed July 8, 1899; in Hungary, filed July 10, 1899; in Luxemburg, filed July 19, 1899, granted August 11, 1899, No. 3,678, and in Russia, dated July 30, 1899,) of which the following is a specification.

This invention has for its object a very important improvement in the weaving of double-piece figured velvet; andit consists in causing the pile-bobbins, the threads of which are to work at a given moment, to feed in an always regular manner in order to produce designs having the same height of pile over all their surface. It is well known, in fact, that in this kind of manufacture of double-piece figured velvet made on a me-- draws but-little and has no feeder, the parts or pieces separateand absorb more pile and leave the latter consequently higher than in the center of the flower, where there are several bobbins working, because there the creel draws harder and compresses the pieces at this place, and consequently the pile is naturally shorter.

Now, as already stated, this invention has for its object to' completely correct this defeet and yield always at any given moment of the manufacture-that is to say, whether the number of pile-threads which are working be large or small-a pile of always equal height. This absolute regularity in the height of the pile is obtained by an arrangement of a movable feeder combined with the loom which has the action instead of simply supplying pile-threads alone of causing them by a sup plementary force, which it imparts to them, to pull on the bobbins of the creel, these pilethreads being always kept gripped until beyond the feeder in order to prevent them being fed prematurely, which would cause the pieces to be crowded to a certain extent and diminish'to some extent the advantages conferred by this feeder. This movable feeder is composed of a movable comberboard, which will replace and occupy the place-of the ordinary fixed comber-board in which the mails serving for guiding the pile threads are inserted and which is placed under the warp behind the cord-pattern. In order to obtain the mobility of this comberboard at the moment when the pile-threads must come into action-that is to say, every four, six, or eight picks, according to the draft and cording to be made a suitable operating apparatus is employed, according to the kind of loom-i. 6., whether hand or mechanical with which the present iin= proved arrangement is to be applied.

In the accompanying drawings, Figures 1 and 2 are diagrammatic views of two arrangements for use with hand-looms. Figs. 3 and 4 are diagrammatic views of an arrangement capable of being used with mechanical looms, and Fig. 5 a modification of .the movable feeder capable of being utilized instead of .the movable comber-board described in the three preceding arrangements.

In the arrangement shown in Fig. 1 a comber- .board P is supported at its corners by spiral springs R, attached to a fixed part of the loom, and it is guided in its vertical displacement in any suitable mannerfor instance, by means of pins G at its ends, which are carried by a suitable bracket E, fixed at each side to the frame of the loom and which serves also to limit its vertical displacement. This comber-board is operated by the mechanism of the loom by means of four ordinary harness-cords A, each connected with a special hook D of the mechanism and also with a corner of said board. In order that a pull exerted by the mechanism on theupper end of the said cords may be converted into a pull in the opposite direction-that is to say,

ll I

may cause the comber-board to be loweredthese cords pass over intermediate pulleys S beneath the board and are hooked or otherwise suitably attached to the under side of said board.

Instead of four cords two only may be employed in the case where, as shown in Fig. 2, each cord is connected in the form of a fork to two corners of the board, and the latteris guided in its displacement by the corner-pins hereinbefore mentioned. Nevertheless any other arrangement for actuating and mounting said board yielding the same result may also be employed. In consequence of the mobility of this comber-board the bobbins are forced, as may be easily understood, to feed-that is to say, to unwind-the material to an extent corresponding with all the variation to which the board is subjected, as this latter, in fact, in its descent encounters the mails through which the pile-threads are passed and causes them to be lowered, and consequently to unwind their corresponding bobbins to a similar extent. This displacement of the board only causes the threads which are working at a given moment to be fed. The others, which are not working, are not fed at all, because they already occupy the lower position and their mails cannot consequently be afiected by the displacement of the board. Finally the descent of this board only takes place at certain picksfor instance, the pick which precedes the attachment of the pile of one piece to another-and in rising under the pulling action of the recoil-springs R it releases the mails and allows them to hang. The connecting of the pile being effected in the following picks, the threads absorb gradually the length which is drawn off the bobbins until the mails of these threads rise progressively in the course of manufacture or are again lowered in a further displacement of the comber-board, and thus successively during the whole course of the manufacture.

In any case as it might happen that in the descent of the mails by the comber-board the pull operated by the pile-threads on their bobbins would produce also a tension at the front of the loom, which would have for its effect to press the two pieces one against the other, the pull of these pile-threads at the front of the loom is avoided by the arrangement of a second pile-rod Z, which, operated by two special hooks F of the mechanism, presses against the ordinary pile-rod H an instant before the descending movement is imparted to the comber-board, so that these pile-threads being pressed between the two rods II and Z are held fixed on the front of the loom during the time when the board causes them to pull on their bobbins, and their pull is not felt by the pieces, which consequently maintain between them the same distance apart during the whole manufacture. Immediately the comber board has terminated its descent the hooks F of the pilerod cease to pull the cords X, and suitablyprovided springs Y lift quickly the rod Z, which presses down the pile-threads and the latter become again free in front. In order that the pressure of this supplementary pilestick or pile-rod Z on the other rod II may be more uniform and that a better momentary gripping of the threads may be obtained, it is preferably covered with a casing of indiarubber, cloth, or the like. In the arrangement shown in side view in Fig. 3 and rear end view in Fig. 4 this same feeder may be applied to a mechanical loom; but its movement instead of being effected by means of the jacquard or other device employed is imparted to it mechanically by two cams J, each mounted on one end of the loom on a shaft K, actuated by an intermediate shaft L, by means of a pinion M and wheel N. In their rotation said cams J act on studs or catches O, fixed on the comber-board, and impart to it by this means the descending movement utilized for producing, as hereinbefore described, the pull of the pile-threads on their bobbins. This board is supported by a frame T and is returned to its initial position by recoil-springs R. A second pile-stick Z, added with the same object as the one already described, is operated by two pitman-bars L, jointed at their lower ends to crank-arm L on the ends of shaft L, and .bent at their upper ends, as at L to engage loosely over the pile-stick Z. This stick is held normally separated from the other pile-stick by two springfingers L fixed to the frame and engaging the stick Z. These fingers act to lift the stick Z as the crank rotates 'after it is positively depressed by the pitman-bars, the parts being so timed that the stick Z will be depressed to clamp the pile-threads one against the other an instant before the descent of the comberboard.

Any other suitable mechanical movement may of course be employed for the operation under the conditions hereinbefore indicated of this comber board and additional pilcstick. Finally, instead of this feeder being formed of a comber-board it may equally well be composed, as shown in Fig. 5, of a stick or rod V, arranged directly in the angle formed by the pile-threads above the mails, which stick receives an alternate descending movement with the same object as that described for the comber-board. 4

I declare that what I claim is- 1. In a hand or mechanical loom for weaving double-piece figured velvet, the combination of a movable comber-board, means for moving same to cause the pile threads at their rear parts to pull intermittently 011 their bobbins, and means for gripping the pile-threads at their front parts at the moment of said pull, substantially as and for the purpose set forth.

2. In a hand or mechanical loom for weaving double-piece figured velvet, the combination of a movable comber-board, springs supintermittently on their bobbins, two pile-rods,

porting'same and means for guiding it vertically, harness-cords connected to said board and to special hooks-0f the mechanism, and pulleys arranged to guide said cords to convert the pull of the mechanism on the cords into a pull of the cords on the board in opposite direction, substantially as and for the purpose set forth.

3. In a hand or mechanical loom for Weaving double-piece figured velvet, the 'combina;

tion of a movable comber-board, means for moving same to cause the pile-threads to pull ment of the pull of the pile-threads on their bobbins, substantially as and for the purpose set forth.

In witness whereof I have hereunto signed my name, this 11th day of September, 1899, 20

in the presence of two subscribing Witnesses.

ANTOINE THARDY.

Witnesses:

JEAN GERMAIN,. GUILLAUME GISCHE.

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