US769283A - Jacquard mechanism for looms. - Google Patents

Description

, 5 PATENTED SEPT.6,1904. J. WADSWURTH & SCHRIER. I JACQUARD MEGH-ANISM FOR LOOMS.

APPLIQATION rum) APR. 26. 1902.

No. 7169,28'3. I

Nb MODEL.

-, JTNESSES: 'l I Q 5 V QINVENTORASVI @64 ATTORNEY.

UNITED STATES Patented. September 6, 19%

PATENT OFFICE.

JOSEPH WADSWORTH AND CORNELIUS SOHRIER, or PATERSON, NEW

JERSEY.

JACQUARD MECHANISM FOR Looms.

sPEcIFI'cA'I'IoN forming part of Letters 1 atent No. 769,283, dated. September 6, 1904.

.' nlication filed April 26, 1902.-

To all whom it may concern:

Be it known-that we, JOSEPH WADSWORTI-I and CORNELIUS SoIIRIER, citizens of the United States of America, residing at Paterson, in the county of Passaic'and State of New Jersey, have invented certain new and useful Improvements in Jacquard Mechanism for Looms, of which the following is a specification, reference being had therein to the accompanying drawings.

The ob 'ect of our invention is to produce a jacquard-machine that will form and control the sheds for both ground and swivel shuttle weaving, that will automatically form the sh ed for the ground-shuttle when required, that will automatically and simultaneously form both' the shed for the ground-shuttle'and the shed for the swivel-shuttle when required, and,- finally, that will permit the weaving in a fabric of both the ground and the figure at the same time. These and other obvious results are accomplished by our jacquard-machine, which is v illustrated inthe accompanying drawings sufficiently to enable any one skilled in the art of weaving to understand the construction and operation thereof.

In the drawings which form a part of this specification and in which similar characters of reference indicate like parts, Figure 1 is a side elevation of our improved jacquard-machine, showing the construction and operation thereof. Fig. 2 is a side view of-one of the knifeframes and a holder therefor that carries knives on upwardly -projecting fingers and one of the vertically-sliding guide-posts to which the said knife-frame is secured. Fig. 3 is a front view of parts shown in Fig. 2, parts being broken away. Fig. 4 is a side elevation showing another of the knife-frames carrying knives on downwardly-extending fingers, holders for said knive-frames, and one of the vertically-sliding guide-posts to which said holders are secured. Fig. 5 is a frontview of Fig. 4, parts being broken away, showing connection between the sliding guidepost and the operating parts of the machine;

- and Fig. 6 is a viewshowing the two positions of the operating-lever and the relative posi- Serial N0- l04,876. (N0 model.)

tions of the warp-threads resulting from the action thereof upon the lifting-hooks through the compound knife-frame carrying knives to engage said hooks when required.

' A represents a part of the frame-of a jacquard-machine; B and C,the upper and lower parts of a compound knife-frame in which the knives are carried upon depending fingers of B and upwardly-extending fingersof C, the said fingers alternating and forming a hori zontal series of knives b andc. The knifeframes are secured to arms d and cl of the parts D and D, which are secured to the vertical sliding rods D and D and that the knifefra'mes'may be suitably adjusted the arms 03 and d are provided with elongated slots 03 As shown in the drawings, the parts D and D are provided with studs CF and d respectively,

and are operatively connected with the operating-lever F of the jacquard-machine by the rods G and H to actuate the upper part B and the lower part C, respectively, of our com-' pound knife-frame.

We do not wishto limit ourselves to the particular description of operating-lever shown In the drawings, as 1t 1s obviousthat other suitable means may be adopted to accomplish the same results with our compound knifeframe; but in the drawings the lever shown is a two-armed or bifurcated leverone-arm extending on each side of the jacquard-machine and the connections between the lever and the compound knife-frame is alike on each side of the machine.

The vertical guide-posts D D D D are adapted to slide vertically in suitable guideways a in the frame A.

The connecting-rod G is pivotally secured at one end to the stud d and at the other end to the outer end of the operating-lever F, which is provided with a'slot f'to permit the proper adjustment thereof. Themod H in like manner connects the stud d with the operating-lever F, but at a point f midway between the fulcrum f and the outer end of the lever. It is obvious that the outer end of thelever will travel twice the distance traveled by the lever at the point f where the rod H is secured to it, and thus the lifting-hooks will in the same period of time and at the same movement of the lever travel twice as far as the lifting-hooks 21 when the knives I) are engaging the hooks z and the knives care engaging the hooks cl.- A differential vertical movement is thus imparted to the grit]? members which engage the lifting-hooks for ground and swivel weaving.

v The lifting-hooks support the usual harness-threads k by the neck-cords 7c and 7:, which we secure together in pairs or sets at the knot or eye If, as shown in Fig. 1. The lifting-hooks are operated laterally in the usualmanner by needles, the lever J actuating the card-cylinder I for that purpose. It will therefore be seen that we can by our pattern-card call on the lifting-hooks to open the shed for the ground-shuttle only or to open two sheds simultaneouslyone for the groundshuttle and one for the swivel-shuttleas shown in Fig. 6, (see positions of the warps and'sheds 'Z, 8, and 9,) thus enabling us with our loom to weave concurrently in a fabric both the ground and the figure.

With this description of our invention, what we claim, and desire to secure by Letters Patent, is

l. The combination of the lifting-hooks for ground and swivel weaving, such hooks being connected in pairs, with means for giving said hooks differential vertical movement.

2. In a jacquard -machine, lifting-hooks suitably connected in pairs, the one to form the ground-shed and the other to form the swivel-shed, and means for imparting vertical movements to said hooks simultaneously, and tolift the swivel-hooks higher than the ground-hooks, substantially as set forth.

3. In a jacquard mechanism for looms, a series of lifting-hooks connected in pairs, in combination with, and adapted to be operated by, hook-engaging knives, and means for imparting to said knives a differential movement.

4:. In a jacquard-machine, lifting-hooks connected in pairs to form sheds, one for the ground-weft and the other for the weft carried by the swivelshuttle, in combination with a compound griif-frame comprising an upper and a lower member, knives carried by said upper and lower members, the knives of the upper and lower members alternating and lying normally in alinement, and means for simultaneously imparting differential vertical movements to said griif members, substantially as set forth.

5. In a jacquard mechanism for looms, two hooks suitably connected and controlling the same warp-threads, in combination with a lifting mechanism comprising members having a differential vertical movement and adapted the one to engage one of said hooks to form the ground-weft, and the other to engage the other hook to form the shed for the weft carried by the swivel-shuttle, as and when required, and means for imparting a differential vertical movement to said hook-engaging members.

6. In a jacquard mechanism for looms, lifting-hooks for ground and swivel weaving, connected in pairs, pattern-controlled means for operating said hooks, means for engaging ground-hooks, means for engaging swivelhooks, and means for giving the engaged ground and swivel hooks a differential vertical movement, substantially as set forth.

7. In a jacquard mechanism for looms, the combination with the griff-frame, of two members, an upper and a lower member, one directly above the other, and movable simultaneously in the same direction, and knives carried by said members, the knives in the upper member alternating or lying between the knives of the lower member, and in alinement therewith, when all of the said knives are in their normal position, and means for imparting to said knife-carrying griff members, a simultaneously vertical movement, to lift the upper member higher than the lower one, while moving in unison, and in the same direction, substantially as set forth.

8. In a jacquard mechanism for looms, a plurality of lifting-hooks, connected in pairs, each pair controlling certain warp-threads and consisting of a ground-hook and a swivel-hook, means for determining which hook of each pair shall be engaged, in combination with means for simultaneously engaging and lifting a number of ground-hooks, and a number of swivel-hooks, to simultaneously form two sheds, one for ground-weft, and the other for weft carried by the swivel-shuttle.

In testimony whereof we afiix our signatures in presence of two witnesses;

JOSEPH WADSWORTH. CORNELIUS SCHRIER. Witnesses:

SARAH GHAPLAIN, HUGH SWEENEY.

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