US637129A - Lappet-loom. - Google Patents

Description

N0. 637,l29. Patented Nov. l4, I899.

G. KINSBDURG.

LAPPET LOOM.

[Application filed Aug. 28, 1897.) (No Model.) 3 Sheets-Sheet l.

m: Norms rrrzns co. mom-urns WASHINGTON. o c.

Patented Nov. l4, I899. G. KlNSBOURG.

LAPPET LOOM.

(Application filed Aug. 28, 1897.

3 SheetsSheet 3,

(No Model.)

FIGX)- UNITED STATES PATENT OFFICE.

GEORGES KINSBOURG, OF REMIREMONT, FRANCE.

LAPPET-LOOM.

SPECIFICATION forming part of Letters Patent No. 637,129, dated. November 14, 1899.

Application filed A ust 28, 1897- Serial No. 649,809. (No model.)

To aZZ whont it may concern.-

Be it known that I, GEORGES KINSBOURG, manufacturer, of Remiremont, Vosges Department, in the Republic of France, have invented new Improvements in Lappet-Looms forWeaving Figured Fabrics, (for which I have obtained Letters Patent of France for fifteen years, No. 267,058,dated May 18,1897 and I do hereby declare that the following is a full and exact description thereof, reference being made to the accompanying drawlngS.

It is known that in the manufacture of broch goods the design is made by passing the thread which is to form the said. design over certain threads of the weft and under all the others, the said broch thread extending from one point to another on the wrong side of the cloth. Heretofore this operation has been done either by hand orwith devices allowing of making only one type of de-' sign on one and the same loom.

This invention relates to an improved apparatus called a broch lathe and which can be adapted to either a hand or power loom and which allows of varying at will the designs without having to change any of the parts of the said loom. One and the same design can also be reproduced on any scale and be enlarged or reduced as the operation is being proceeded with. In order to insure this double result, I adapt onto the ordinary lathe of the loom a second lathe or lathe for broch goods, which has an upward and downward movement imparted to it during the operation. The upper horizontal piece of this lathe placed under the warp-threads of the cloth carries a series of vertical needles, through which pass the broch threads, the assemblage of which is parallel to that of the warp-threads and situated under the latter. When the broch lathe is in its uppermost position, the needles are engaged between the warp-threads, and the assemblage of the broch threads is also raised up, so that if at this moment the shuttle is put in motion the weft-threadwill be passed under all the broch threads, which will thus be caught in the cloth. As soon as the brochlathe moves down its pins are disengaged from the warpthreads and the piece which carries them is then moved aside,whereby each needle jumps over a certain number of warp threads, the result being that when the upward movement again takes place the fresh broch stitch made by each needle is situated a certain distance to the right or left of the foregoing stitch. These lateral movements of the piece carrying the needles are obtained by means of a wheel the rim of which is provided With pins of varying lengths. At each stroke of the lathe one of the said pins comes and acts laterally on-the end of a lever having a fixed fulcrum and jointed at its opposite end to the comb of the broch lathe. It will thus be understood that the longer or shorter the pin the lever will oscillate more or less and the comb will be displaced to a greater or less extent, whereby each broch thread may be caused to make a predetermined design by arranging beforehand the length of the different pins on the rim of the operating-wheel, the said design being, moreover, the same of all the broch threads. It will alsobe understood that by displacing the oscillating center of the lever which controls the movements of the comb of the broch lathe the same series of operating-pins may be made to produce the same designs on the cloth, but reduced or enlarged, the lever then operating as a pantograph. Hence in order to change the size of the broch design all that is needed is to change the oscillating center of the lever, and in order to change the form of the design the length of the pins is changed, an operation which is readily and easily done by screwing or unscrewing the said pins in the rim of the wheel which carries them, the pins thus moving inward or outward in a radial direction.

I have shown in the accompanying drawings the application to a loom of the broch lathe I have invented.

In the said drawings, Figure l is a back view in elevation of the said lathe. Fig. 1 shows a detail. Fig. 2 is a sectional view on the line 1 2 of Fig. 1 as seen from the right, and Figs. 3 and 4 show one part of the operation of the lathe.

My broch lathe comprises a frame or support a g k 10, fitted onto the uprights B of the ordinary lathe in such a manner as to be able to slide vertically in the said uprights while being carried along by the latter when moving. In the application shown in the drawings the ordinary lathe is pivoted at its lower part, so that the comb is at its upper part.

The upper cross-piece a of my broch lathe is arranged below and in front of the bottom A of the lathe of the loom and receives on its back face a piece I), which carries the needles 0 of the broch threads. The said needles, placed in front of the bottom A, project beyond the upper face of the latter in the uppermost position of the broch lathe, as shown in Figs. 1, 2, and 3 of the drawings, and then descend below the level of the said bot-tom, when the beating takes place, as also shown in Fig. 4. The piece I) is provided with two horizontal slots 01 (l, in which pass the stems of two screws (1 d, screwed in the cross-piece a, and in the projection on the back face of the piece I) is also a pin 6, which enters the slotted or bifurcated end of a vertical oscillating lever f.

There only remains to be shown how I communicate the upward and downward movement to the broch lathe as a whole and the lateral variable movement to the piece Z7 of the needles. To insure this twofold result, I fix onto a second horizontal cross-piece g of the broch lathe a simplified jacquard mechanism j, having only two needles or liftingwires 1 and 2. To wire 1 are suspended two connecting-rods h h, hooked at their opposite ends to one of the arms of the leversl and 1, having a fixed fulcrum 0, and jointed at i and 71 of the uprights k and 7c of the broch lathe. To the other wire 2 is hooked a small chain or rod an, attached at its opposite end to the controlling-lever m of a pawl 17.. On the other hand, a yoke 19, fixed to the lower horizontal cross-piece p of the broch lathe and to the frame of the mechanism j, carries a horizontal rotatory shaft g, on which are fixed a ratchet-wheel r behind and operated by the pawl n and then a second wheel 5, carrying on its rim the pins t, radially arranged, and the projection of which can be increased or decreased by unscrewing or screwing the same, and in front a depression-wheel it, against the rim of which is constantly pressed, by a spiral spring 10, a stop M the head of which is housed in the depressions of the wheel to and holds the shaft q fast after each partial rotation of the same. Lastly, the oscillating lever f revolves on a spindle f, pivoted on the upright of the broch lathe. The said lever f, the upper bifurcation of which embraces the pin 6, carried by the piece I), is provided at its lower part with the curved sprattle or horn f constantly held pressed against the ends of the pins 25 by the tension of the springf fixed at one end to the upper arm of the leverand at its opposite end to the upper cross-piece a and at a certain point of the latter.

The relative lengths of the arms of lever f can, if desired, be changed, for example, by removing nut f, Fig. 1, from the pivot f and transferring the pivot up or down to an other hole f or by other suitable means.

Whether the loom is operated by power or by pedals, a partial movement of rotation of about one-fourth of a revolution is transmitted either by suitable means or direct to the horizontal shaft 3' of the jacquard mechanism for each beating stroke of the 100m This movement causes the griffe or ram 0 of the mechanism to rise. The cards which unwind from the roller J cause the needles 1 and 2 to be carried along by the ram, and consequently the raising of the rods h, h, and m. The fulcrum o of the levers Z and 1 being fixed to a suitably-supported standard 0' and the smaller arms of the said levers being raised, the greater arms are lowered, carrying with them the whole of the broch lathe in their downward movement. As soon as this latter movement begins the needles 0 of the broch threads become disengaged from the warp-threads, and the pawl a forcing at this moment the ratchet-wheel r, and consequently the shaft q, to turn one of the pins t of the wheel 3 pushes the lower arm of the lever f, and the said leverf oscillates and carries with it in its lateral movement the piece I? and the needles 0. As soon as the rotation of the shaft j ceases the downward movement of the broch lathe stops, as well as the horizontal movement of the piece I). The spiral springs V and V, which have become compressed between the cross-piece g of the broch lathe and the lugs 00 on the uprights B of the ordi nary lathe, open and bring the broch lathe back to its uppermost position and the ram of the mechanism to its lowermost position. The tension-spring f causes the piece I) of the needles 0 also to move back and the lever f to press on the following pin t of the wheels 3.

The perforations of the cards of the jacquard mechanism allow of raising simultaneously both of the wires 1 and 2, or simply wire 1. When wire 2 is not raised, each broch thread makes successive stitches placed in the same line parallel to the warp-threads.

In any case all the broch threads make simultaneously the same design in the cloth. In order to enlarge the said design, all that is needed is to lower the oscillating centerf of the lever f, which increases the length of the upper arm of the said leverand decreases the length of the lower arm of the same. Inversely, to reduce the broch design the center of oscillation f of the lever f is raised.

Figs. 3 and 4 show the positions of the broch threads when the broch lathe is in its uppermost and lowermost positions. When the said latheis in the former position, the broch threads 3 are raised and are nearly in line with the upper assemblage 4 of the warp-threads. A stroke of the shuttle is then given, and the weft-thread 5 lies under the warp-threads 4:, under all the broch threads 3, and above the second assemblage 4: of the warp-threads, the broch lathe moves down again, the beating of the cloth takes place,

and theassemblage 3 of the broch threads, as well as the assemblage 4 of the warpthreads, lie at the lower part, while the assemblage 4: of the warp-threads lie at the upper part. If then a stroke of the shuttle is given, the weft-thread 5' comes up above all the broch threads, the beating is done, the broch lathe comes up again, and so on. When it is required to stop the operation of the broch threads,while continuing the weav= ing of the cloth, the broch lathe is brought by hand to its lowermost position and then fixed there by any suitable means. The operating parts of the jacquard mechanism are put out of movement at the same time.

Such is the simple apparatus, which can be applied to any system of loom .and which al lows of making the broch goods of all sorts of designs, theform and size of which can be readily varied, without having to change any of the parts of the said apparatus.

I reserve to myself the right of varying at will the forms, the materials, and the dimensions of the different organs of my lathe with drop-box for broch goods and of completing the same by any suitable operating or transmitting device according to the types of power or hand looms to which the said lathe may be applied.

I claim 1. The combination with the lathe of aloom and the frame B thereof, of a broch lathe comprising a vertically-movable frame,the broch lathe being carried by and vertically movable with the frame B, bar I), broch needles 0 car ried thereby, said bar 19 being fixed to the top of the broch lathe but being movable to the right and left, and a jacquard mechanism having two hooks or wires 1, 2, levers Z, Z piv' oted to the broch frame, a fixed pivot for said levers, means for connecting said levers on the opposite side of their fixed pivot from the connection to the broch frame of wire Z, a pattern-wheel s with pins 6, a propelling-pawl m, and a connection between said pawl and wire 2, substantially as described.

2. In a loom a broch lathe comprising in combination a framework a, g, 70, it, p, capable of sliding vertically, beams B, B on which said framework slides, a piece 11 carrying the needles of the stitching-threads, piece I) being movable to the right or left onthe part a of said framework, an oscillating lever f, apivot f adjustable as to height, a support Z0 a wheel 3 provided with radial pins t more or less screwed into holes in the wheel 8, a jacquard mechanism having two hooks or wires 1, 2, levers Z, Z pivoted on the fixed axis 0 and jointed at 2,71 on the pieces k, k of the frame, devices h, h connecting said levers to the hook or wire 1, a pawl m controlled by the hook or wire 2, and a ratchet-wheel r.

In witness whereof I have hereunto set my hand in presence of two witnesses.

GEORGES KINSBOURG. Witnesses:

EUGENE WATTIER, GEORGES BORDEAU.

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