US767141A - Brocading apparatus for ribbon-weaving looms. - Google Patents

Description

PATENTED AUG. 9, 1904.

J. P. GELAS. Y BRUGADING APPARATUS POR RIBBON WEAVING LOMS.

APPLICATION FILED MAR. 31, 1903.

5 SHEETS-SHEET 1.

No MODEL.

mmv TOR Jfsw HEME 6in# s PTBNTED AUG. 9, 1904.

tJ. P. GPLAS. BPOGADING. APPARATUS P0P RIBBON WEAVING Looms.

APPLICATION FILED MAR. 31, 1903.

5 SHEETS-SHEET z.

N0 MODEL.

No.. 767,141. PATENTBD AUG. 9l 1904. J. 1. GELAS.

BRUGADING vA1SPJRAI'US FOR RIBBON WEAVING LOOMS.

APPLIUATIDN FILED MAR. 31, 1903. N0 MODEL.

5 BHBETBf-BHBBT 3.

M.: irfMMEf-f 1 PATENTED AUG. 9. 1904.

J. P. GBLAS. BROGADING" APPARATUS FR RIBBGN WEAVING LOOMS.

APPLIGATIH FILED MAR. 31, 1903.

N0 MODEL.

PATENTED AUG. 9, 1904.

J. P. GELAS. BROGADING APPARATUS FOR RIBBON WEAVING LOOMS.

AYPLIGATION FILED MAB. 31, 1903.

5 SHEETS--SHBET 5.

N0 MODEL.

INVENTOR WTNESSES ATToRN EYs UNITED STATES 'Patented August 9, 1904.

PATET OFFICE.

JEAN PIERRE GEL/is, oF sT. ETIENNE, FEANeE, AssjreNoa To soeIETE eELAs ET eo., oF sT. ETIENNE, FRANCE.

BROCADING APPARATUS FOR RIBBON-WEAVING LOOMS..

SPECIFICATION forming part of Letters Patent No. 767,141, dated August 9, 1904.

Application filed March 31, 1903.

To all whom, t 7mo/,y o7/werft:

Be it known that l, JEAN PIERRE G-ELAs, manufacturer, a citizen of the Republic oil France, residing in St. Etienne, Loire, France, have invented a Broeading' Apparatus for Ribbon-VVeaving' Looms, of which the following is a specification.

This invention relates to a brocading apparatus specially intended for ribbon-weaving' looms and ot which the application to these looms permits of producing automatically duringI the weaving of the ribbon brocade eil'ects over the whole or a portion of the width.

The brocading apparatus in question is applied directly to the batten of ribbon-looms, and like the batten is divided up into independent portions, each corresponding' to a ribbon to be woven. This apparatus participates in the angular movement of the battcn, but its parts are in addition given movements particular to themselves and which serve to cause pirns or bobbins provided with brocading-threads to enter the warp, to operate there, and linally to return them to their briginal position. These pirns or bobbins are arranged in such a manner as to permit of suitable tension being' constantly given to the brocading-thread.

ln order that the invention may be readily7 and clearly understood, it is represented in the accompanying' drawings, in which Figure 1 is a front elevation of one of the sections of the brocading appliance mounted upon the hatten oi' a ribbon-loom. Fig. 2 is a cross-section on the lines A B of Fig. 1. Fig. 3 is another cross-section on the line G l) of Fig. 1. Fig. f1 shows in detail and upon a larger scale a portion of the section of broeading appliance represented in Fig. 1. Fig. 5 is a corresponding' cross-section of the said portion and similar to the cross-section represented in Fig. 2. Fig. 6 is a iigure similar to Fig. 4f and serving to show in conjunction with this latter the operation oi the essential parts of the broeading' appliance. Fig. 7 is a sectional View through a pirn supplied with brocading-thread and mounted on its carriage. Fig. 8 is a plan view of this 'carriage separate from the pirn.

Figs. 9 and 1() are end views Serial No. 150,442. (No model.)

of this carriage. Figs. 11 and 12 show sepa# rately the two constituent parts ot' the pirn. Fig. 13 is a particular liront elevation oi a ribbon-loom provided with a hatten on which the brocading appliance is mounted. Fig. 14. is a cross-section on the line lil F of Fig. 13, showing the arrangement of the brocading appliance upon the batten ol the ribbonweaving loom. Fig'. 15 is a side elevation of the ribbon-weaving loom, showing' the modification introduced into the general operation, owing' to the application oil the brocading' appliance.

The brocading appliance (represented in Figs. 1 to 5) comprises a bar A, provided with a plate a, cut in the form or' teeth a', directed downward, and opposite each of which is situ ated a liat spring' a2, fixed above upon the said bar A. Opposite the teeth a are also situated blades t, mounted upon pivots t of the bar `A and articulated by theirupper portion to the bar B, arranged parallel with the bar A and above this latter. The lower portion oi'l the blades Z; is cut so as to form a point.

Between each of the teeth a and their respective springs a2 is situated, Fig'. 5, a plate c, constituting' the base of one of the carriages carrying the pirn upon which is wound the thread serving' to produce the brocade eii'ects upon the ribbons in the course of manufacture. The rear face ot' these plates c is provided with a groove e', Figs. 7 and 9, in which is :freely engaged a tongue as, Jr'ormcd upon the front face ol the teeth a'. The plates c are therefore retained in the vertical direction by the tongue a, owing' to the pressure exerted upon them by the springs a2.

Each pirn is constituted by a bobbin nl, passed freely upon a spindle of special arrangement and to which the terminal points e and e', Figs. 7 and 11, are journaled, one in a hole formed in a diskf, connected by a rod f to the plate c, and the other in a cavity formed at the bent extremity r/ oiI a rod g', also iixed to the plate c. This spindle consists of a spindle fr, provided with end points e and e', and upon which are tixed washers /L' and 7a2, between which is mounted a sleeve fi, passed freely upon the spindle L. Upon the surface of this sleeve and alongl generatinglines are inversely fixed fiat springs j, serving to produce friction within the bobbin CZ for the purpose of producing displacement of the said sleeve during the rotation of thelbobbin under the influence of the unwinding of the thread. The inverse arrangement of these springs also serves to insure centering of the bobbins.

/Vithin the sleeve z' and passed upon the spindle it is mounted a spiral spring j", one of the extremities of which is' fixed to the sleeve itself, while the other is fixed to the spindle t. This spring', serving as a iiexible connection between the sleeve and spindle, becomes wound up in the sense of the unwinding of the thread from the bobbin CZ and afterward reacts upon this latter by the intermediary of the sleeve in order to maintain the thread constantly stretched and to take up any which may have been unwound in excess. Another spiral spring jg is passed upon the point e of the spindle it. It bears upon the disk fand reacts upon the washer /t for the purpose of maintaining' the spindle L upon its support.

The rod g. Figs. 7 and 8, is formed with a slot g2, through which passes the thread coming from the bobbin (Z and serving, as hereinafter explained, to produce brocade effects.

It will be seen that the point of the blades bears in the condition of repose against the rod f and the plates c and that this takes place toward the right or the left hand according as the said plates are displaced to the left or right hand. It will also be noticed that the intermittent angular movement of these blades causes the carriage of the pirn to pass from one tooth a to the adjacent tooth and this alternately toward the right or left hand.

`The teeth c', referred to above, form groups intended to correspond with the combs C of the batten D of ribbon-looms, and each group comprises a number of teeth rt, varying accordingto the greater or less extent of these combs.

The bar A, with its groups of teeth a', is mounted upon a batten D in such a manner as to participate in the displacement of this latter,while at the same time being free to effect a relative movement of descent and ascent. To this end its extremities are in engagement with slideways E, Figs. 13 and 15, fixed to the uprights F of the batteri D. They are suspended from rods G, carried by arms H, to which an angular displacement is imparted at the desired moment by means of a mechanism known as ascension mechanism and which may be placed in the ordinary manner under the control of a jacquard mechanism. It follows from this that the teeth a' of the bar A are caused to descend at the proper moment into the Warp-threads raised by the heddles O in the ordinary manner, so as to form the shed in which the shuttles P, serving to deposit there the weft-thread for the formation of the ribbon, travel.

The ascension mechanism referred to in the foregoing paragraph may be such as represented in Fig. 15, but I do not claim its speciiic construction as my invention.

As shown in Figs. 13 and 15, the two bars A and B are mounted on the batten D and are vertically supported by rods G, suspended from arms H on a rock-shaft 1, mounted in the frame. To another arm, 2, of the rockshaft is hung a rod 3, carrying two rollers 4. Suitable links 20 21 connect this rod to the batten, so that the rod will partake of the oscillating motion of the batten. Two curved cam-levers 5 6, pivoted at 7 8 and provided with stops 9 10 and springs to normally hold them against said stops, serve to control the rocking motion of the rock-shaft H through the medium of two dogs 11 12, pivoted at 13 and 14, each dog being connected to one end of a spring-controlled lever 15, operatively connected by the cord 16 to the jacquard mechanism.

The operation is as follows: Suppose it is desired to lower the brocading-bars A and B into the shed. Traction is then exerted on the cord 16, dog 12 inserted under cam-lever 6, and dog 11 freed. As the batten D moves to the left, Fig. 15, the lower roller 4 bears upon it, the rod 3 is raised, the rock-shaft 1 and arm H oscillated, the rods G depressed, and the brocading apparatus plunged through the lifted warp-threads into the shed. Itis after this has been accomplished that the automatic mechanism L of Fig. 13 is operated to move the crank N, rod B, and the pirns to cause them to be transferred within the shed. If upon the next throw to the left of the batten it is not desired` to have the brocadingthread in the design, then lever 6 is allowed to occupy the position shown in Fig. 15, in which case the upper roller 4 travels under cam-lever 5, pulls the rod 3 down, and through the rock-shaft 1 and arm H lifts the pirns and their carrier-bars out of the shed by means of the rods Gr. For its part the bar B, upon which are articulated the blades travels like the bar A with the batten D, but it is also capable of intermittent reciprocating longitudinal movement alternately to the right and to the left hand in such a manner as to cause the blades to rotate upon their pivots Z2', so that they will displace the corresponding pirncarriages, as above stated.` Thus if Fig. 4 be inspected it will be seen that the blade Z1 bears upon the left-hand of a pirn intended to be conveyed in the right-hand direction. The intermittent longitudinal movement of the bar B toward the left hand will therefore serve to convey this portion toward the right hand, Fig. 6; but it will be noticed that the plate does not remain in the position indicated in continuous lines in Fig. 6, but that it resumes IOO IIO

immediately after having' produced its eli'ect the position shown in dotted lines in such a manner as to be in readiness for subsequent action in the opposite direction. Each sudden intermittent movement of the bar B serving' to produce this effect is obtained in any convenient and automatic mechanism constituted by a cam J, keyed upon the main shaft J ot' a lever K of a detent system L, arranged in the ordinary manner under the control of a jacquard mechanism, of a link M, and of a lever or angle-piece N, connecting' with the bar B, asv represented in Figs. 13 and 14. The intermittent conveyance of the pii'ns Z from one tooth c to the adjacent tooth, either to the right or lett hand, will only take place after the said teeth have been immersed in the warp, and this conveyance is immediately followed by the lifting of the teeth c. It will be noticed that the teeth c by reason of' their olive shape separate the raised warptlii'cads suiiiciently to permit of the inti'oduction of the pirns into the shed. The plates c are also cut olive-shaped for the same reason. In this manner any catching1 of the warp is obviated. The immersion, the lateral conveyance, and the liftingI of the pii'ns (Z cause the threads of these pirns to surround the lifted wai'p-threads situated between the extreme points of the lateral travel. The arrangement of thespindle of these pirns also serves to leave the maximum of liberty to the bobbins, while at the same time permitting' them to place the spring j" in tension, this spring' being intended when once the pirns are raised to cause them to take up thread which may have been unwound in excess, and consequently to uniformly tighten the brocade-threads.

It is obvious that owing' to the operation of the heddles O, arranged in the ordinary inannci' under the control of a jacquard mechanism, the threads lifted are not always the same and do not always occupy the same position, so that, in short, the brocade-threads are able to produce brocade etlects oil any desired design. It will also be noticed that the shuttles Ij of the ribbon-loom provided with the bro-` cading appliance described above are constituted and continue to operate in the same manner as heretofore and that they are still utilized for the formation oi' the ground. 'fabi'ic, while at the same time the brocadingpii'ns Z produce their brocade eilect in the manner above stated.

A stroke of the battcn is given each timea weft-thread oi' brocadingthread has been deposited.

I claim as my inventionu 1. A brocading` apparatus for looms, comprising' pirns, and pirn-carriages mounted on a bar A, operating-blades, a bar B adapted to operate said blades, a batten on which both bars are mounted, both bars together being' adapted to be vertically moved on said batten, and said bar B being adapted to be horizontally moved on said batten and means for automatically controlling said vertical and horizontal motions from jacquard cords, substantially as described.

Q. A broeadinp` apparatus for looms, comprising a bar A, dependingteeth secured thereto, a rib on each tooth and a flat spring' of less length than the tooth in front of each tooth, slotted carriers for the pii'ns, adapted to be held between the springs and the teeth with their slots eng-aging the ribs, substantially' as described.

3. A pirn-carriei' for brocadingl apparatus, comprising; a plate C, a rod f terminating' in a disk j' and a bent rod g secured to said plate, said pirn being adapted to be held between said bent i'od and disk, substantially as described.

4. In combination with. the hatten, a plurality of shuttles mounted thereon, combs, and the automatic shuttle-operating' apparatus of a ribbon-loom, two bars carrying' pirn-carriages mounted on said batten and automatic means for inserting and transversely operating said pirns within the shed, substantially as described.

In testimony whereof I have si gned my name to this speciiication in the presence o1' two subscribingI witnesses.

JEAN PIERRE G-ELAS.

Witnesses:

LioN URANEIQENT, AUeUs'rUs E. lNenAivi.

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