US526365A - Jacquard mechanism for looms - Google Patents

Description

`(No Model.) 4 Sheets-Sheei; 1. B. H. GLEDHILL. JAQUARD MBGHANISM POR LOOMS.

No. 526,365.v

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(No Moden.) 4 sheets-sheet 2,

B. H. GLBDH'ILL. JAQUARD MBUHANISM POR LOOMS.

No. 526,365; e l Patented Sept. 18, 1894.

(No Model.) B. H. GLEDHILL.

JAQUARD MECHANISM FOR LOOMS.

.4 Sheets-Sheet 4.

UNITED STATES PATENT OEEICE. y

BENJAMIN H. GLEDHILL, OF PHILADELPHIA, PENNSYLVANIA.

EJACQUAR'D IVIECHANISM FOR LOOIVIS.

SPECIFICATION forming part of Letters Patent No. 526,365, dated September 18, 1894.

Application filed February 14, 1894. Serial No. 500,141. (No model.)

To all whom it may concern.: i

Be it known that I, BENJAMIN H. GLEDHILL, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented a certain new and useful Improvement in J acquard Mechanism for Looms, of which the following is a full, clear, and exact description.

This invention relates more particularly to those Jacquard mechanisms which are specially designed'for looms for weaving ingrain and other like carpet- The object of the invention is to provide a mechanism whereby I may produce a fabric in which the pattern and the weave, that is to say, the combination of face and back binding warps, are produced expeditiously and accurately, and without the use of the cum-v brons lifting journals heretofore commonly employed in this class of looms.

In my invention, as already indicated, I dispense with the lifting journals, and I operate the warps by a pattern cylinder in sets equivalent to what are commonly known as journal sets, and without the necessity of cutting the pattern cards to form `the weave. The pattern is formed by operating the needles from the pattern cards, and the lower face-of weaveA by employing a grid frame having tilting knives, which knives are tilted by means of rods to such an angle that the upper edges of any number of said knives may be placed ont of the path of the lifting crooks of the pattern hooks, the upper face of weave being formed by means of lifting frames or bars operated from cylinder and cards by needles and hooks. By thus forming the upper and lower face of weave, I am enabled to dispense with pattern cards having a large number of indexes and one hook to a needle by placing any number of hooks to a needle `and operating them variously. By my invention, also, it is possible to change quickly and easily from one to another system or combination or rotation of sets of warp threads.

Having thus stated generally the principle of my invention, I will proceed now to set forth the best mode in which I have contemthe part or improvement which I claim as my like parts aresimilarly designated, Figure l is a front elevation of a Jacquard mechanism,

with the grid frame in its elevated position.

Fig. 2 is a side elevation, the griff frame being in its lowered position. Fig. 3 is a perspective View of two of the lifting frames. Fig. 4 is a mutilated sectional elevation of one of the lifting frames. Fig. 5 is a perspective view of portion of the grid frame with attached knives and the knife-operating devices. Fig. 6 is a sectional side elevation of a portion of the Jacquard mechanism, showing in full lines all of the grid knives inclined in one direction to engage the hooks of the lifting frames, and showing in dotted lines two of such frames lifted. Fig. 7 is a perspective View of one of the knives and a `mechanism in which individual lifting bars are substituted for the lifting frames and also showing a modification in the connection of the needles with the lifting hooks of such lifting bars. Fig. 10 is a perspective View of a portion of the modified griff frame shown in Fig. 8, and Fig. 11 is a side elevation of portions of a Jacquard mechanism showing a modification ofthe means for operating the knives in sets. y

The Jacquard mechanism illustrated inthe drawings is what is commonly known as single lift having only one means of operating the harness by raising the griff frame, but the invention is applicable with equal advantage to a rise and fall jacquard inwhich the resting frame is lowered; and it is also applicable to a double lift jacquard, in which two griff-frames which raise one of two hooks attached'to the harness cord; and finally,'the invention is applicable also to any Jacquard mechanism in which hooks and griff-frames are capable of being used in the manner hereinafter set forth. In one old and common construction of 5 Jacquard mechanism, the gri frame has a vertical motion only and the knives are permanently fixed in one position in the griff frame so that when the griff frame is elevated the knives catch and lift all those hooks ro which have not been pushed back by the uncut portion of the pattern card on the cylinder, and those hooks which are pushed back are not raised because they are out of the path of the knives. In using this form of jacquard, only those portions of the hooks and harness are operated for which the pattern card is cut to allow the needles to enter the cylinder and thus bring the lifting crooks o'f the hooks over the upper edges of the zo knives; and. therefore, a pattern is formed only in the fabric, the Weave, that is to say, the face and back binding of weft by warp, being obtained by the use of lifting journals arranged immediately over the Warp. Among 5 the disadvantages of this old form of jacquard I may mention that the lifting jonrnals are necessarily of'a very cumbrous nature; it is impossible to operate the mechanism, excepting in one determined order; many 3c combinations of weave effects are obtainable only with great difliculty, and, nally, there is excessive Wear on the harness and great straining of the warp. To overcome these disadvantages and to dispense with the lifting journals, I construct my Jacquard mechanism as follows:

The frame a may be of any usual or approved construction, and the griff frame b is mounted thereon by means of the guide- 4o rods b so as to be capable of a vertical motion therein; and this motion is obtained through a connecting rod b2 jointed to a lever b3, which may be pivoted to the frame, the said lever having a connected operating rod b4, which may derive motion in any suitable manner from the main shaft of the loom.

c is the pattern cylinder of any approved construction, and which may be arranged to rotate in and be held by the frame c', which 5o is pivoted to the frame a.

cZ is a connecting rod, leading from the cyl inder to a crank lever CZ which is pivoted to the frame a andhas a slotted member d2 for adjustable connection With an arm d3 rigidly afxed to the connecting rod b2 and moving with it.

e is a hook, adapted to engage pins e on the pattern cylinder to rotate said pattern cylinder as it is vibrated upon its frame c 6o by the vibration of the lever b3 and the connecting mechanismjust described.

fis the pattern card.

gis a frame in which a'nuinber of needles h are supported in horizontal position and transversely of the frame a.

The griff frame b is provided with a number of knives t' which may be arranged therein in sets. The preferred form of arranging these knives in the griff frame is shown in detail in Figs. 5 and 7, wherein the knivesA are provided with lugs or journals c", projecting from their ends, which are fitted in holes or bearings Z2 in the griff-frame; and from the ends of these knives there depend lugs r5" by means of which the vertical rods j are connected to said knives. These rods j pass through eyes h in the needles h2, so that, by the longitudinal movement of the said needles, the rods j are given lateral movement, and thereby the knives are tilted or rocked upon the journals Within the griffe frame so as to present their upper edges in planes on one side or the other of their journals for a purpose presently appearing. This movement of the knives maybe limited by means of stops 'i4 on the griff-frames, as shown in Figs. 8 and l0. Thelower ends of the vertiycal rodsj pass through holes in the resting plate k, of ordinary construction, as clearly shown in Fig. 1.

Z are the lifting pattern hooks, which may be arranged in sets or otherwise, as desired, and are provided with the crooks Z', which are adapted to engage the upper edges of the knives as the said knives may be tilted into the planes in which the hooks move. These hooks Z have the return bends Z2 to receive the harness cords to operate the warps.

Z3 are lifting-hooks applied to warp-lifting frames m and provided with crooks Z4, which canbe placed in the path of the upper edges of the knives When the griff-frame is at its lowest point. As shown in Figs. 1, 2, 3 and 6, these frame-lifting hooks Z3 may be secured in sets to the lifting frames m. These framesl aremade in the form ofgrids, and are mounted above the resting plate k, and their bars receive the resting crooks Z5 of the return bends of hooks Z which in turn receive the har ness cords n, so that when the hooks Z are not raised by the griff knives, they rest on the bars of lifting frames m.

As shown more in detail in Figs'. 6 and 9, the hooks Z3 are connected with the needles h in sets, so that as the said needles come into operative conjunction with the pattern cylinder and cards, the various sets of hooks may be thrown into or out of alignment with the knives in the grid frame to cause some of said hooks and theirlifting frames to be lifted, while others are at rest.

As shown in Fig. 6, by the dotted lines, and reading from the right toward the left, the second and fourth sets of lifting-frame hooks are in position when lifted, While the first and third sets of lifting frame hooks Z3 are not affected by that particular elevation of the gri frame.

As illustrated in Fig. 9, the lifting hooks may be connected with individual or independent lifting bars 0, and the said lifting hooks are arranged in sets, or otherwise, for

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operation by the needles under the action of the pattern cylinder and cards.

In Fig. l1, amodification of the knife-tilting mechanism is shown, and this consists in arranging the knives in sets and providing them with depending forks p, which engage pins p' on a bar p2, and these bars are provided with depending forks p8, which engage pins or offsets p4 on a needle p5, which corresponds with the needle h2.

As illustrated in Fig. 9, the lifting hooks Z3 are susceptible ofa variety of combinations with their needles and the knives of the griif frame for controlling various yarns or combinations of yarns in the production of the pattern or weave, and therefore, it is obvious that the invention is not limited to any particular arrangement or combination of hooks and knives for that purpose.

Referring now to the form of the invention shown in Figs. 3, 4 and 6, it will be seen that when it is desired to lift up any set or sets of warp threads to form the face binder, the cylinder and cardsbeing perforated to register with the appropriate needle or needles, the crooks of the lifting-frame hooks Z5 of that particular set or those sets are brought over the complemental knives of the griff frame and when the griif frame is raised, all of the hooks of that set or those sets are raised, with their lifting frames, and thus the face Warp binder is formed over the face of the fabric.

The lifting frames, such as shown in detail in Fig. 3, made with a number of united bars, enables the lifting simultaneously of all of the pattern hooks in a given row or number of rows, without regard to the control of such pattern hooks by the pattern cylinder and card. In a Jacquard mechanism supplied` with my lifting frames and knives, the loom may be run at greater speed than a loom employing lifting journals, because the parts are few, simple, small and easy of operation. In the case of the individual bars, Fig. 9, the knives and needles contribute to enable me to make up various combinations.

The use of the needles to control the movements of the lifting frames and knives enables me to change the combination or rotation of the sets of warp threads readily and quickly, by cutting the cards for any desired change; and thereafter this change is repeatedin the pattern automatically as often as the card containing such change of cutting reappears.

The purpose of tilting the knives is to place the upper edges of any desired number of knives out of the path of the lifting crooks of the pattern lifting hooks, thus allowing all of the hooks in a set or sets to remain down to form the binder on under face of the fabric, notwithstanding whatever position the hooks may have assumed by reason of being By means of my invention, I am enabled to produce a fabric having a combination of pattern and Weave Without the use of lifting journals or lifting comber boards, and Without the necessity of cutting the weave in the pattern portion of the pattern cards; and,

obviously, a fabric may be produced having one or more plies or planes or combinations of plies or planes without the necessity of cutting the pattern portion of the pattern cards to form the weave. As a result of this construction, two or three ply ingrain carpets or any combinations of such, may be readily and economically produced without the elaboration of the pattern cards in the manner heretofore common. t

What I claim is- 1. In aJacquard mechanism, a griff-frame, knives pivoted therein and adapted to be tilted to one side and the other of their axes, rods vertically depending from such knives for hooks with the pattern cylinder and cards,

substantially as described.

2. The combination, in aJacquard mechanism, of a griff-frame having tilting knives, a pattern cylinder and cards, means for raising and lowering the griff-frame, a resting plate, lifting frames provided with lifting hooks, needles connecting said hooks with the cylinder and cards and adapting said hooks to be engaged by the knives as the said griif-frame is raised, rods applied to the tilting knives, and needles connecting said rods with the cylinder and cards, substantially as described.

3. The combination, in aJacquard mechanism, of a griff-frame, knives pivoted therein, operating rods for said knives, needles connecting said rods in sets, a cylinder and pattern cards by which said needles are operated, lifting frames, pattern hooks having return bends terminating in crooks to engage said frames to lift the harness, lifting hooks for said frames adapted to be engaged by the griff knives, and needles connected with said hooks and themselves operated by the pattern cylinder and cards, substantially as described.`

4. In a Jacquard mechanism, the combination of a griff-frame and `means to lift it, knives having journals pivoted in said grid frame and adapted to be tilted so as to present their upper edges to one side or the other of their axes, lugs extending from such knives,

`rods depending from said lugs, needles attached toV said rods, harness-lifting devices comprising lifting hooks adapted to be engaged by the said knives, and a pattern cyl- IZO inde'r and cards adapted to operate the knifeaxes, in combination with lifting hooks with rod operating needles, substantially as and which the harness cords are connected and for the purpose described. having crooks, extending above the knives 15 5. In a Jacquard mechanism, a griff-frame when the griff-frame is in its lowermost po- 5 and means to raise and lower it, knives pivsition, substantially as and for the purpose oted in said gri-frame, needles corresponddescribed. ing in number with the desired number of In testimony whereof I have hereunto set sets of knives, rods depending from such myhand this 9th dayof February, A. D 1894. zo

knives and connected with the needles in y BENJAMIN H. GLEDHILL. 1o sets, and a pattern cylinder and cards for op- Witnesses:

erating the said needles and thereby tilting ALEXANDER WRIGHT,

the knives to one side or the other of their S. E. CARVER.

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