US621949A - Island - Google Patents

Description

No. 62!,949. Patented Mar. 28, I899. G. w. STAFFORD & A. E. KELMEL. OPEN SHED JACIIUARD MACHINE.

(Application filed June 4, 1898 (No Modal.) 2 Sheets Sheet l.

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N0. 62!,949. Patented Mar. 28, I899. G. W. STAFFORD &. A. E. KELMEL.

OPEN SHED JACOUARD MACHINE.

(Application filed June 4, 1898.)

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UNTTE STATES PATENT @nnicn.

GEORGE \V. STAFFORD AND ALBERT E. KELMEL, OF PROVIDENCE, RHODE ISLAND, ASSIGNORS TO THE OROMPTON .& KNOWLES LOOM 'VVORKS, OF \VOROESTER, MASSACHUSETTS.

OPEN-SHED JACQUARD-MACHINE.

SPECIFICATION forming part of Letters Patent No. 621,949, dated March 28, 1899.

Application filed June 4, 1898. Serial No. 682,549. No model.)

To all whom it may concern: sion great wear and tear 011 certain parts of Be it known that we, GEORGE W. STAF- the machine, and require such an amount of FORD and ALBERT E. KELMEL, citizens of the time as to limit the speed of running of a United States, residing at Providence, in the loom having applied thereto a jacquard-niacounty of Providence and State of Rhode Ischine operating on the principle which has land, have invented certain new and useful just been explained. It also occasions great Improvements in Open-Shed Jacquard-Mawear of the pattern-cards, so that they are chines, of which the following is a specifica capable of being retained in service for only tion, reference being had therein to the aca comparatively short time. The chief aim [o companying drawings. of the invention is to obviate these disad- 6o The invention has relation-more especially vantages and to enable each shed formationto open-shed jacquard-machines. There are to be effected in the working of a full-opendifferent classes of open-shed jacquard-mashed jacquard-machine with a single beat chines; but this invention has reference more only of the card, pattern cylinder or prism,

I 5 especially to that class which is termed someand batten. times full-open-shed machines. In a ma- The invention first will be described fully chine of this last-mentioned class there is emwith reference to the accompanying drawployed a stationary griff or its equivalent ings, in which latter is represented the best and the uprights or hooks are so constructed embodiment thereof which we have yet con- 20 and operated as that when one of the same trived, after which the distinguishing and after having been engaged by the movable characteristic features of the invention will grid and carried into its highest position is be particularly pointed out, and distinctly desired to remain up for one or more sucdefined in the claims at the close of this speciceeding picks such upright or hook is caused fication.

25 to become engaged with the stationary griif, Figure 1 of the said drawings is aview repso that it shall not descend again until after resenting in side elevation a jacquard-masuch succeeding pick or picks shall have chine containing the best embodiment of our become completed. It has been customary invention which we have yet contrived, only heretofore in jacquard-machines of this class such parts being shown as are necessary to 30 to occasion two beats of the same patternmake clear the nature of the invention. Fig. card against the needles for each pick, one 2 is a view on the order of a vertical section. of such beats occurring when the movable Fig. 3 is a view in plan, on an enlarged scale, griff is at its highest point, a given shed beshowing a needle and certain parts which are ing open and being designed to move out of adjacent thereto. Fig. 4 is ,a View in verti- 3 5 engagement with the stationary griff such of cal section, on an enlarged scale, showing certhe hooks or uprights which occupy an eletain of the parts which are found at the left vated position for that shed as should be-lowhand side in the other figures.

cred for the next shed formation. The sec- 1 designates one of the side frames of a 0nd beat occurs at the completion of the de jacquard-machine. 4o scent of the movable griff and is followed im- 2 2 designate blades of a vertically-moving o mediately by the rise of such griff for the griff. The said blades are shown in dotted opening of the said next shed. This mode of lines in their lowest position in Fig. 2 and in working is disadvantageous for several pracfull lines in their highest position. tical reasons. It involves two beats of the 3 (see Fig. 1) designates the griif-frame in 5 pattern cylinder or prism for each pick. The which the said griff-blades 2 2 are mounted. quickly-repeatedbeats of the pattern cylin- The said grilf-frame is operated in practice der or prism and of the batten carrying the in any suitable manner, not necessary to be said cylinder or prism, together with the shown or described. chain of cards passing around the said pat- 7 7 are upright wires provided with hooks 5o tern cylinder or prism, consume power, occa- 8 8 for engagement with the griff-blades 2 2,

as usual. 9 9 are needles cooperating with the said hooked uprights 7 7 and disposed, as usual, in horizontal or substantially horizontal position.

is the pattern cylinder or prism, around which are passed the usual pattern-cards,

- (not shown,) the said pattern cylinder or each with a secondhook 21 in addition to hook,

S, mentioned above, this second hook being for engagement with the stationary griffblades 19 19. The hooks 21 21 become engaged with the said stationary griff-blades 19 10 after the uprights 7 7 have been raised into their highest position, and thereby the said uprights are held in their upraised position until by the working of the mechanism they are caused to descend again. The strain that is transmitted through the cords which in practice are connected with the lower ends of the uprights or hooks '7 7 draws the lower ends of the upraised uprights into position for engagement with the griff-blades 19 19, as in the case of the uprightsfand g in Fig. 2.

Figs. 1 and 2 show the moving griff in its highest position, with the uprights (Z c fg supported thereby, the shed being supposed to be open. It usually happens that at each descent of the vertically-movin g griif preparatory to the formation of a new shed certain of the uprights 7 7, which previously were lifted by the said moving grilf and allowed to engage by their hooks 21 21 with the stationary griff-blades, are required to descend in unison with the said moving gritf. It has been customary heretofore to occasion a selection of the uprights which are required to descend and to provide for their descent in unison with the moving griff by causing the pattern cylinder or prism to beat up when the moving griif is at its highest point, so as to present against the ends of the needles 9 9 the pattern-card correspondingwith the next shed whichis to be produced in the warp-threads. As will be understood by those who are versed in the art, the blank or unperforated portions of the said card correspond with the uprights which are to occupy their lowermost position when the next shed is open. Consequently when the said pattern-card is carried against the ends of the needles 9 9, the moving griff being in its highest position and engaging with the hooks S 8 of the uplifted uprights 7 7, at which time the said grill supports the said uplifted uprights with their hooks 21 21 slightly above and free from the stationary gritf-blades, (see Fig. 2,) the pressure of such blank or unperforated parts of the said card as come opposite needles pertaining to uplifted uprights will carry the said uprights into the position that is occupied by the uprights d and c of Fig. 2that is to say, free of the stationary griff-blades so that in the ensuing descent of the moving griff such uprights will go down with it. At the time of such descent those among the uplifted uprights which are not pressed laterally, as in the case of the uprights d and 6, but which are allowed to remain in the position that is occupied by the uprightsf and will settle back onto the stationary griff-blades 19 19 and be held thereby in elevated position.

As stated hereinbefore, it has been customary in machines of the class to which the present invention relates to occasion a second beat of the same pattern-card against the ends of the horizontal needles 9 9 at the end of the descent of the vertically-moving griff and prior to the ensuing ascent of the said griff, such second beat of the said patterncard being intended to effect the selection of the uprights which, being in their lowest position, are to be elevated for the shed which is to be opened by such rise of the said moving grilf. In accordance with our invention we dispense with the necessity for making thesecond beat of the pattern-card against the needles by providing devices which operate substantially as we shall now proceed to set forth in connection with the needles and uprights and whereby prior to the rise of the moving griif the uprights which the said pattern-card indicates for being left in their lowest position shall be prevented from becoming engaged with the ascending griff.

We will now proceed to describe the parts in which our invention more immediately resides. 1

In the drawings the rear ends of the needles are shown as supported upon transverse rods 24 24, that preferably are arranged in a vertical series, as shown. Adjacent to'eaeh rod 24 the needle 9 which rests thereon is formed or provided with an inclined portion 25. (See more particularly Fig. 4.) Each of the needles is formed or provided with a broadened bearing portion to act against the corresponding supporting-wire 24, this broadened bearing portion being provided in the case of the needles which are shown in the drawings by returning upon itself the wire of which such needle is composed, thereby producing short parallel lengths of said wire, as at 26 in Fig. Vertical flattened strips, as 261, may be passed between the returns of the wire of the needle. The inclined portion 25 of each needle, as will be obvious, cooperates after the fashion of a cam in connection with the correspond.

ing supporting-wire 24, and inasmuch as the said supporting-wire is fixed in a convenient portion of the framework, as at 27 in Fig. 4, it follows that when the needleis moved endwise to the left by pressure of a blank or unperforated portion of the pattern-card, so as to move the inclined portion 25 thereof over and in contact with the said supporting-wire 24, the needle itself is caused to have a-slight extent of vertical movement. This is indicated in the case of needles Z, on, n, and 0 in Figs. 2 and 4. The rear ends of the needles 9 9 are formed or provided with hooks or other projections, as at 28 28, Figs. 2 and 4, or otherwise are constructed to be engaged with the blades 29 29 of a horizontally-reciprocating griff or equivalent engaging device, the framework of which last is designated 30. This griff is mounted to move horizontally on suitable supports, not shown herein and of obvious and well-known character. It is connected at each end thereof by a rod 31 to an arm 32, the latter being pivoted at 33 and provided with a pin or roller 34, working against a cam 35, fast on a rock-shaft 16.. The said griff 30 or equivalent engaging device moves back and forth in a horizontal direction without engagement of the blades or other engaging portions thereof with the projections or hooks of the needles 9 9 so long as the said needles remain in their normal positions, as in the case of the needles 1), j, 7.2, and p, the blades thereof passing above the said hooks or projections 28 28. When, however, a needle is moved endwise by the pattern-card, as in the case of the needles Z, m, n, and 0, so as by the action of the inclined portion 25 thereof, in connection with the corresponding supporting-wire 24:, to occasion a sufticient extent of vertical movement of the needle to bring its projection or hook into the range of movement of the adjacent griff-blades 29 of the griff 30, then in the ensuing outward movement of the said griff the said needle will be engaged by the said adjacent griff-blade and will be carried outward thereby, thus occasioning a lateral deflection of the upright which is engaged by the said needle out of the path of movement of the ascending grift'.

The operation of a jacquard-machine hav-. ing applied thereto the described embodiment of our invention, so far as the same is modiiied in consequence of the invention, is as follows: The beatof the pattern-card against the needles 9 9, which takes place when the movinggriff is in its highest position, as hereinbefore stated, is followed promptly by a slight outward movement of the horizontallymoving gritf 30 or equivalent engaging device. This outward movement is sufficient to place its blades in engagement with' the hooks 28 28 on those needles 9 9 which have been uplifted in consequence of the action of their cam-shaped portions 25 25 upon the rods 2% 2%. (See dotted lines in Fig. 4.) As hereinbefore indicated,this action results from the endwise movement of such needles, that is caused by pressure of blank or unpert'orated portions of the card against the ends of the needles. This outward movement'of the said griff 30 is due to the action of the grade 351 on the cam 35 against the roller 34 on the arm 32, which is connected with the said horizontallyreciprocating griif. During the descent-of the vertically-movin g griff the horizontally-moving griff remains in engagement with the hooks of the needles 9 9, but without further outward movement. During this time the roller 34 bears against the concentric portion 352 of the cam 35. At the time of the completion of the descent of the vertically-moving griff the cam-grade 353 acts against the roller 34 to press the horizontally-reciprocating griif outward into its extreme position. In this last part of its outward movement the horizontally moving griff takes with it all the needles 9' 9 which by the beat of the pattern-card against the same were moved or pressed back by the blank or unperforated portions of the said pattern-card. Thereby the said horizontally-reciprocating griff operates to occasion the same selection of the uprights which for the time being are in their lowered position as ordinarily is effected by the second beat of the same pattern-card.

What we claim is- 1. The combination with the needles and hooked uprights of a jacquard mechanism, and a pattern-card device cooperating with the said needles to efiect the selection of the said uprights, of a supplemental needle-actuating device acting after the presentation of a card to the needles by the said patterncard device and producing another movement of the said needles and uprights in conformity with the indications of the said card, substantially as described.

2. The improved full open shed jacquard mechanism comprising the vertically-moving griff, the stationary griff to uphold the uprights in an elevated position,the needles, and a pattern-card device and supplemental needle-actuating device acting alternately on the needles in determining the raising and lowering of the uprights, substantially as described.

3. The improved full-open-shed jacquard mechanism comprising the vertically-moving griff, the stationary griff to uphold the uprights in an elevated position the needles, a pattern-card device acting to present a pattern-card against the ends of the needles, a needle-actuating grid, and means to actuate said needle-actuating gritf, substantially as described.

4. The improved full-open-shed jacquard mechanism comprising the uprights, the vertically-moving griff to raise said uprights, the stationary griff to uphold the uprights in an elevated position, the needles, a pattern-card device operated to present a card to the needles at one extreme of the movement of the vertically-moving grifi, a needle-actuating griff, and means to actuate the same .at the other extreme of the movement of the vertically-movin g griff, substantially as described 5. The improved open-shed jacquard mechanism comprising the hooked uprights, the vertically-movin g griff, the stationary griff to uphold the uprights in their elevated position, the needles connecting with the said up rights andhaving the cam-shaped portions and also the hooks or projections, a pattern- In testimony whereof we afiix our signacard device cooperating with said needles, tures in presence of two witnesses. and the supplemental moving griff engaging r a w said hooksor projections to actuate the neeg ggg 5 dles which have been brought into the range J J of action of said supplemental griif by the ac- Witnesses: tion of said cam-shaped portions, substan- XVILLIAM G. ANTHONY,

tially as described EMMA NIsBET.

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