US625208A - Island - Google Patents

Description

No. 625,208. Patented May 16, I899; a. w. STAFFORD a. E. KELMEL. DOUBLE ACTION JAGHUABD MACHINE.

(Application filed. Sept. 3, 1898.)

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Patented May l6, I899.

G. W. STAFFORD & A. E. KELMEL. DOUBLE ACTION JAGOUABD MACHINE.

(Application filed Sept. 8, 1898.) (No Model.) 2 Sheets-Shoat 2.

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M dcw y ri-KW UNITED STATES PAT NT ()FFICE.

GEORGE XV; STAFFORD AND ALBERT'E. KELMEL, OF PROVIDENCE, RHODE ISLAND, ASSIGNORS TO THE CROMPTON 8n KNOWLES LOOM WORKS, OF

IVOROESTER, MASSACHUSETTS.

DOUBLE-ACTION JACQUARD-MACHINE.

SPECIFICATION forming part of Letters Patent No. 625,208, dated May 16, 1899.

Application filed September 3,1398. Serial No. 690,165. (No model.)

To aZZ whom it nttty concern;

Be itknown that we, GEORGE W. STAFFORD and ALBERT E. KELMEL,citizens of the United States, residing at Providence, in the county of Providence and State of Rhode Island, have invented certain new and useful, Improvemen ts in DoubleAction Jacquard-Machines, of which the following is a specification, reference being had therein to the accompany- 0 ing drawings.

The invention relates more particularly to what are known as double-action or double-acting jacquard-machines. In certain forms of machines of this class there is employed for each neck and tail cord a double hook or hooked upright, and the machine has two moving griffs Working alternately and both intended to engage with the said double hook or hooked upright, but -not both at the same time, the one griff ascending while the other is descending for one pick, and' vice versa for the nextpick, and so on. In consequence of the fact that the double upright has a plurality of grifit-hooks, one for engagement with each moving grifit, it follows that when one grilf is descending, carrying with it an upright which previously was raised, but which should occupya lowered position in the next shed formation, the disengaged hook on said upright projects into the path of movement of the ascending griff, and hence the latter will engage with the said hook of the descending upright unless such engagement is provided against, and by arresting the descent of such upright and carrying it back into an upper position will make thereby a false indication and cause a mispick. With the objects in view of preventing undesired engagement of a descending upright by the ascending griif and at the same time obviating the necessity of making a second or extra beat of the card cylinder or prism for the same purpose we have invented certain mechanism, which is presented in our applications for United States Letters Patent, filed June 15, 1898, Serial No. 683,512, and September 3, 1898, Serial Nos. 690,163 and 690,164. The mode heretofore adopted in practice of providing against such undesired engagement of the descending upright by the ascending griffnamely, by occasioning a second or extra beat of the card cylinder or prismis seriously disadvantageous. When it is undertaken to prevent such engagement by causing such second or extra beat of the card cylinder or prism to take place at the time when the two moving griffs are passing each other in order to present again to the needles the same card which was last presented thereto, a slowing down of the operation of the loom below the speed that otherwise would be attainable is necessitated, inasmuch as such additional movement of the card cylinder or prism renders it necessary to occasion two complete beats or movements of the cylinder or prism for each pick of the loom. For instance, if it were desired to run a loom at the rate of one hundred and fifty picks per minute the card cylinder or prism would be required to make three hundred beats against the needles per minute. By obviating the necessity of making the second or extra beat of the card cylinder orprism for the purpose of preventing improper engagement of the ascend-ing gritf with the descending upright and by providing devices to press back the descending uprights out of the reach of the ascending grift, as fully disclosed in our applications aforesaid, we are enabled to run a loom having a double-action jacquard-ma- 8o chine applied thereto at ahigher rate of speed than we heretofore have known to be possible. In our said applications we have presented and claimed certain press-back wires or needles and devices for operating the same in the proper relations with the uprights and moving grift's.

Our present invention consists in an improved construction of the press-back devices and in certain provisions for prevent- 9o ing the book of -a descending upright from becoming accidentally disengaged from the grift with which it is moving.

The invention will be described first with reference to the accompanying drawings, after which the distinguishing characteristics thereof will be particularly pointed out and distinctly defined in the claims at the close of this specification. v

Figure 1 of the drawings shows in side ele- 10o vation certain portions of a double-action jacquard-machine having our invention applied thereto, onlysuch old parts being shown as are necessary in order to make clear the nature and mode of operation of the invention. Fig. 2 is a view, mainly in transverse vertical section, showing'certain of the parts which are represented in Fig. 1. Fig. 3 is a partial plan.

The framing and certain fixed parts which are applied thereto are designated 1 1 in Figs. 1 and 3, the usual bottom board being designated 2, the double hooks or. uprights being designated 3 3, the usual needles cooperating therewith being designated 4 et, 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 griff-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 gritf-frames 7 and S in practice are mounted and actuated in usual manner and through suitable power connections (not necessary to be shown or described herein) and in operation are caused to movev 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 theactuating-gritf. One limb of each upright is designed for cooperation with a griffblade 71, and the other limb thereof is designed for cooperation with the adjacent grifi-blade 81, one of such griif-blades 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 griff such as sometimes is employedthat is to say, in full open-shed jacquard-machines when it is desired that an upraised upright shall remain in its elevated position for several picks in succession without being caused to descend meanwhile.

32 32 designate hooks that are formed on the uprights 3 3 for engagement with the stationary grid-blades 12 12.

The devices which have been described thus far are common to preexisting jacquard-111achines.

With the foregoing devices we combine means whereby as each of the moving griffs in turn descends the disengaged hooks of the uprights which areengaged and descending therewith are pressed back, so that the said hooks thereof shall be out of the path of the ascending griff. Thereby we prevent the ascending griff from picking up a descending upright and raising it at a time when it should be lowered into a depressed position. We use 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 grilf-blades. The said wires or their equivalents may be variously constructed, arranged, and applied. \Ve

' 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. Vhen these wires are moved toward the right in the drawings, they press the limbs of the uprights to the right also, thereby carrying laterally clear of the ascending griff-bades those hooks 31 31 which are not in engagement with either the ascending griff-blades or the descending griff-blades.

The press-back wires or needles 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 or needles 13 13 are applied, supporting-arms 34 34, by which the said cross-bars are upheld, and slide-rods 35 35, to which the supporting-arms 34 34: are attached. \Vith the carrier for the pressback 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 4 said moving grilfs pass each other the carrier andpress-back wires are operated to bear the uprights laterally in order to move the hooks of the disengaged descending uprights laterally clear of the blades of the ascending grilf and thereby prevent the engagement of such hooks with the said blades. Preferably we arrange for operating the carrier from one of the moving griifs or a part connected and moving in unison therewith. Thus we have shown in the drawings a cam in engagement with a pin or roller, one of the said parts being connected to move with one of the movin g griffs and the other being connected with thecarrier. In the present embodiment of the invention the cam herein designated 36 is attached to the slide-rod 9 of the griif-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 towhich 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 grids pass each other at an intermediate point in their vertical traverse the carrier,with the press-back wires mounted theretoo in, is moved toward the right, so as to carrythe disengaged books of the uprights out of the path of movement of the ascending gridblades.

Zach engagement of the cam and roller (this engagement occurring each time 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. This operates to carry toward the right, also clearof the ascending griff-blades, all the hooks which are not in engagement with moving grit'f -blades. Those limbs having the hooks thereof engaged with such grid-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 grift-blades on which they are seated. However, in order to guard against the liability of such dislodging we combine with the press-back wires or needles and the uprights springs, which are interposed between the said wires or needles and uprights, and which springs are intended to yield under the pressure of the press-back wires or needles and thereby relieve the strain at the hooks, which would tend to dislodge the latter from the griff-blades. The best arrangement of the said springs which we have yet contrived is illustrated in the drawings, in which latter the springs themselves are designated 134. 134. They are each in the form of a narrow elongated U and are mounted with their free extremities extending downward, as shown. The said springs are hung upon cross-rods 135 135, supported by side bars 136 136, made fast to the carrier for the press-back wires or needles,or the said springs may conveniently be hung or supported in any suitable manner. The two ends of each spring are introduced, together with the upper end of one limb of an upright, into one of the elongated eyes 137 of one of the wires or needles 13. The expansion of the spring within the said elongated eye holds the said limb pressed up against one end of the said eye. When the carrier, and with it the said wire or needle 13, is moved in manner as described above toward the right, the pressure that is transmitted from the wire or needle through the spring 134 to the limb of the upright bears the said limb to the right also, so as to tend to move the said'limb sufficiently to bear its, hook 31 out of the way of the griff-bladewhichisadjacentthereto. Should, however, thesaid hook 31 be in engagement at such time with the said griff-blade and moving in unison therewith, the said spring 134: will yield and become compressed under the resistance which the limb of the upright otters to being moved laterally, and thus the strain exerted against the said limb will be relieved, so that the said hook will not be forced .oif the griiif-blade. The wires or needles 13 13 are formed in the present embodiment of our invention of fiat metal strips, each punched with a number of elongated eyes 137 137. The ends of said wires-or needles are sprung into holes prepared therefor in the cross-bars'33 33 of the carrier.

We 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; nor do we claim the specific devices for actuating the carrier, since the same is made the subject of claim in our application for United I States Letters Patent filed on said date, Serial No. 690,164t. 1

l/Ve claim as our invention 1. The combination with the oppositelymoving grifis, the uprights, and the pressback devices to prevent engagement of a descending upright with an ascending griff, of springs interposed between said press-back devices and the uprights to yield and thereby obviate accidental disengagement of an upright from a grid-blade onto which it is hooked, substantially as described.

2. The combination with the oppositely.

engagement of an upright from a griif-blade' onto which it' is hooked, substantially as described.

3. The combination with the oppositely moving grifis, the uprights, the press-back wires or needles having elongated eyes receiving the limbs of said uprights, and actuating devices for such wires or needles, of the springs also entered into said elongated eyes and operating to yield and thereby obviate accidental disengagement of an upright from a griff-blade onto which it .is hooked, substantially as described.

4. The combination with the oppositelymoving grifis, the uprights, the press-back wires or needles having elongated eyes receiving the limbs of such uprights, and actuating devices for such wires or needles, of the U.-shaped springs having the extremities thereof'also entered into said elongated eyes and operating to yield and thereby obviate accidental disengagement of an upright from a griff-blade onto which it is hooked, substantially as described.

In testimony whereof. we aflix our signa turesin presence of two Witnesses.

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

W. L. HUTOHINS, W. G. ANTHONY.

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