US625476A - Island - Google Patents

Description

N.o. 625,476. Patented May 23, I899.

G. W. STAFFORD & A. E. KELMEL.

DOUBLE, AfiTiOlLJAOflUABD MACHINE.

(Application filed Sept. 3, 1898.) (No Model.) 2 Sheets-Sheet I.

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No. 625,476. Patented May 23, I899. G. W. STAFFORD &. A. E. KELMEL.

DOUBLE AOTION .JAOOUABD MACHINE.

. (Application mad Sept. 8, 1898.) (No Model.) 2 Sheets-Sheat 2.

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UNITED STATES PATENT OFFICE.

GEORGE \V. STAFFORD AND ALBERT KELMEL, OF PROVIDENCE, RHODE ISLAND, ASSIGNORS TO THE OROMPTON dz KNOWLES LOOM WVORKS, OF WORCESTER, MASSACHUSETTS.

DOUBLE-ACTION JACQUARD-MACHINE.

SPECIFICATION forming part of Letters Patent No. 625,476, dated May 23, 1899.

Application filed September 3, 1898- Serial No. 690,164. (No model.)

To all whom it may concern: gridnamely, by occasioning a second extra Beit known thatwe, GEORGE W.STAFFORD beat of the card-cylinder or prismis seand ALBERTE.KELMEL, citizens of the United riously disadvantageous. When it is under States, residing at Providence, in the county taken to prevent such engagement by cansof Providence and State of Rhode Island,have ing such second or extra beat of the card-cyl- 5 5 invented certain new and useful Improveinder or prism to take place at the time when ments in Double-Action J acquard-Machines, the two moving grids are passing each other of which the following is a specification, refin order to present again to the needles the erence being had therein to the accompanysame card which was last presented thereto,

IO ing drawings. a slowing down of the operation of the loom The invention relates more particularly to below the speed that otherwise would be at* what are known as double-action or doutainable is necessitated, inasmuch as such ble acting jacquard-machines. In certain additional movement of the card-cylinder or forms of machines of this class there is em prism renders it necessary to occasion two I 5 ployed for each neck and tail-cord a double complete beats or movement of the cylinder hook or hooked upright, and the machine has or prism for each pick of the loom. For intwo moving grids working alternately and stance, if it were desired to run a loom at the both intended to engage with the said double rate of one hundred and fifty picks per minhook or hooked upright, but not both at the ute the card-cylinder or prism would be re- 20 same time, the one grid ascending while the quired to make three hundred beats against other is descending for one pick, and vice the needles per minute. By obviating the versa for the next pick, and so on. In connecessity of making the second or extra beat sequence of the fact that the double upright of the card-cylinder or prism for the purpose has'a plurality of grid-hooks, one for engageof preventing improper engagement of the 2 5 ment with each moving grid, it follows that ascending grid with the descending upright when one grid is descending, carrying with and by providing devices to press back the dc it an upright which previously was raised, but scending uprights out of the reach of the aswhich should occupy a lowered position in cending grid, as fully disclosed in our applicathe next shed formation, the disengaged hook tions, Serial Nos. 683,512 and 690,163, afore- 0 on said upright projects into the path of movesaid,we are enabled to run aloomhavingadou- 8o ment of the ascending grid, and'hence the ble-action jacquard-machine applied thereto latter will engage with the said hook of the at a higher rate of speed than we heretofore descending upright unless such engagement have known to be possible. In our said appli is provided against, and by arresting the decations just mentioned we have presented 3 5 scent of such upright and carrying it back and claimed certain press-back wires or neeinto an upper position will make thereby a dies and devices for operating the same in the false indication and cause a mispick. With proper relations with the uprights and mov= the objects in view of preventing undesired ing grids. I engagement of a descending upright bythe Our present invention consists in an im-' o ascending grid and at the same time. obviatproved combination of devices providing for 0 in g the necessity of making a second or extra the actuation of the press-back wires or neebeat of the card-cylinder or prism for the dles and in certain provisions for preventing same purpose We haveinventedcertain mechaccidental disengagement, through the action anism which is presented in ourapplications of the press-back devices, of the book of a de 5 for United States Letters Patent, filed June scending upright from the grid with which it 15, 1898, Serial No; 683,512, and September is moving. a 3, 1898, Serial Nos. 690,163 and 690,165. The The respective features of theinvention will mode heretofore adopted in practice of probe fully explained, with reference to the acviding against such undesired engagement of companying drawings, after which the inven- 50 the descending upright by the ascending tion will be particularly pointed out and distinctly defined in the claims at the close of this specification.

Figure 1 of the drawings shows in side elevation certain portions of a double-action jacquard-machine having certain embodiments of our invention applied thereto, only such old parts being shown as are necessary in order to make clear the relations and mode of operation of our new devices. Fig. 2 is a view in transverse vertical section of Fig. 1, showing certain of the parts which are represented in Fig. 1. 4

The framing and certain fixed parts which are applied thereto are designated 1 1 in both views or figures of the drawings, the usual bottom board being designated 2, the double hooks or uprights being designated 3 3, the usual needles cooperating therewith being designated 4 4, the springs which are applied to the said needles being designated 5 5, and the usual card-cylinder or prism being designated 6.

The two moving griif-frames are designated 7 and 8, respectively, the blades applied thereto being designated, respectively, 71 and S1 and being arranged in alternating succession, as shown. The two griff-frames '7 and S are shown as mounted, respectively, on the slide rods 9 and 10, as usual, the said slide-rods being fitted to move in guides 11 11 on the fixed framework of the machine, all as usual, and the griif-frames being in practice actuated through suitable power connections, but not necessary to be shown or described herein, and thereby being caused to move simultaneously in opposite directions with respect to each other.

The card-cylinder or prism 6 in practice will be supported and operated by devices of usual character and construction (not herein shown) and thereby will be caused to make one beat for each shed formation, this usually corresponding with one pick of the loom to which the jacquard-machine is applied.

The uprights 3 3 are double, as shown, each limb of each of such uprights having a hook, as 31, for engagement with the actuating-griff. One limb of each upright is designed for cooperation with a griff-blade 71, and the other limb thereof is designed for cooperation with the adjacent griif-blade 81, one of such griffblades being designed to be uplifted for one shed formation and the other thereof being designed to be uplifted for the succeeding shed formation, and so on in regular alternation.

12 12 designate the blades of a stationary grifi, such as sometimes is employedthat is thus far are common to preexistin g jacquardmachines.

WVith the foregoing devices we combine means whereby as each of the moving griffs in turn descends the disengaged hooks of the uprights which are engaged and descending therewith are pressed back, so that the said hooks thereof shall be out of the path of the ascending grid. Thereby we prevent the ascending grilf from picking up a descending upright and raising it at a time when it should be lowered into a depressed position. We use by preference wires, which are arranged to engage with the respective limbs of the uprights 3 3 and are moved transversely with relation to the griffs at the proper moment in the working of the jacquard-machine, so as to press the disengaged hooks on the said uprights out of the path of the ascending gridblades. The said wires or their equivalents may be variously constructed, arranged, and applied. To have shown them herein as constituting a set of supplemental needles, the same being designated 13 13 and having eyes or the equivalent thereof where they engage with the limbs of the uprights 3 3, as at 131 131. When these wires are moved toward the right in the drawings, they press the limbs of the uprights to the right also, thereby carryinglaterally clear of the ascending grid-blades those hooks 31 31 which are not in engagement with either the ascending griff-blades or the descending grid-blades.

The press-back wires 13 13 are mounted in a movable carrier, herein shown as consisting of cross-bars 33 33, to which the opposite ends of the wires 13 13 are applied, supporting-arms 34 34, by which the said cross-bars are upheld, and slide-rods 35 35, to which the supportingarms 34 34 are attached. With the carrier for the press-back wires is combined means for reciprocating the said carrier horizontally in proper timing with reference to the movements of the two moving griffs,whereby each time the said moving griffs pass each other the carrier and press-back wires are operated to bear the uprights laterallyin order to move the hooks of the disengaged descending uprights laterally clear of the blades of the ascending griff and thereby prevent the engagement of such hooks withthe said blades:

Preferably we arrange for operating the carrier from one of the moving griffs or a part connected and moving in unison therewith. Thus we have shown inthe drawings a cam to engage with a pin or roller, one of the said parts being connected to move with one of the moving griffs and the other being connected with the carrier. In the present embodiment of the invention the cam (herein designated 36) is attached to the slide-rod 9 of the grid-frame 7, while the roller which is engaged by the said cam, the same being designated 37 herein, is mounted on a pin 38, which is attached to a slide-rod 35. 361 is a spring surrounding the slide-rod 35 between the collar to which pin 38 is applied and one of the bearings for said slide-rod 35. The cam 36 is shaped, as shown, to occasion a complete reciprocation of the said carrier in each complete vertical movement of the cam up or down. Thereby each time the moving griffs pass each other at an intermediate point in their vertical traverse the carrier, with the press-back wires mounted therein, is moved toward the right, so as to carry the disengaged hooks of the uprights out of the path of movement of the ascending grilf-blades.

Each engagement of the cam and roller, this engagement occurring each ti me the two moving griffs are about to pass each other, occasions a movement of the carrier and pressback wires to the right in the drawings. N This operates to carry toward the right, also clear of the ascending grid-blades, all the hooks which are not in engagement with moving griff-blades. Those limbs having the hooks thereof engaged with such griff-blades will ordinarily bend under the pressure which is exerted against them by the press-back wires or needles, and it is not intended that the hooks of such limbs should become dislodged from the griif-blades on which they are seated. However, in order to guard against the liability of such dislodging we provide in connection with the uprights springs which shall yield under the pressure of the press-back wires or needles, therebyrelieving the strain at the hooks, which would tend to dislodge the same from the griff-blades. This is effected very conveniently by providing the limbs of the uprights themselves with springs located between the points at which the hooks are formed or provided on such limbs and the points at which the press-back devices take bearing against such limbs. The said springs may be formed variously and are of such strength that so long as the hooks of the uprights are disengaged from the griifs the springs shall not yield under the pressure of the press-back devices, the latter and the uprights operating the same as if the springs were not present. However, a hook being engaged with a moving griff-blade the action of the press-back devices against the upright occasions a yielding of the spring, thereby relievin g the hook from strain, which might operate to dislodge the same, and obviating the tendency to the production of faults in the weaving. In the drawings we have shown the springs produced at 333 333 just above the hooks which engage with the moving griffs by flattening the uprights for a portion of their length.

\Ve do not claim,broadly, herein the carrier for the press-back wires or needles, since the same is made the subject of claim in our application for United States Letters Patent filed September 3, 1898, Serial No. 690,163.

\Ve claim as our invention 1. The combination with the double uprights, and the oppositely-moving griffs, of

the press-back wires engaging with the stems of the respective limbs of such uprights and operating to prevent engagement of a descending upright with an ascending grifi, the carrier for the press-back wires, the spring to move said carrier in one direction, and the cam and pin or roller acting in opposition to the spring to move the carrier in the other direction, substantially as described.

2. The combination with the uprights provided with springs to yield under the action of the press-back wires and thereby obviate forced disengagement of the hook of an upright from the griff wherewith it is engaged, and the oppositely-moving griffs, of the pressback wires to prevent engagement of a descending upright with an ascending grid, the carrier for the press-back wires, the spring to move said carrier in one direction, and the cam and pin or roller acting in opposition to the spring to move the carrier in the other direction, substantially as described.

3. The combination with the oppositely moving griffs, of the uprights, and press-back devices to prevent engagement of a descending upright with an ascending griff, the said uprights provided with springs to yield under the action of the press-back devices and there by obviate forced disengagement of the hook of an upright from the gritf wherewith it is engaged, substantially as described.

4. The combination with the oppositely moving grifis, of the uprights formed with springs adjacent to the hooks thereof, and press-back devices engaging with the said uprights and operating to prevent engage= ment of a descending upright with an ascending griff, the uprights bending at the spring portions thereof to obviate forced disengagement of the hook of an upright from the grilf wherewith it is engaged, substantially as described.

5. The combination with oppositely-movin g grids, of the uprights flattened adjacent to the hooks thereof to produce springs, and press-back devices engaging with the said uprights and operating to prevent engagement of a descending upright with an ascendinggriff, the uprights bending at the flattened spring portions thereof to obviate forced disengagement of the hook of an upright from the griif wherewit-h it is engaged, substantially as described.

6. The upright having a hook for engagement with an actuating-griff, and having the stem thereof adjacent to the said hook constructed with an elastic portion of increased flexibility to promote the bending of the stem, substantially as described.

In testimony whereof we affix our signatures in presence of two witnesses.

' GEORGE W. STAFFORD. ALBERT E. KELMEL. Witnesses:

.E. F. GREENE,

F. E. ROBBINS.

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