US519374A - Squire bentley - Google Patents

Description

(No Model.)

S. BENTLEY. JAGQUABD ATTAGHMENT FOR LOOMS.

Patented May 8, 1894.,

I E I UNITED STATES PATENT OFFICE.

SQUIRE BENTLEY, OF PATERSON, NEW JERSEY, ASSIGNOR OF ONE-THIRD TO ALFRED WOODIER, OF SAME PLACE.

JACQUARD ATTACHMENT FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 519,374, dated May 8, 1894.

Application filed July 10, 1893.

To all whom it may concern:

Be it known that I, SQUIRE BENTLEY, a citizen of the United States, residing in thecity of Paterson, county of Passaic, and State of New Jersey, have invented a new and useful Jacquard Attachment for Looms, it compris ing a device for releasing the cards from and to prevent their overlapping on the cylinders of the Jacquard machines used in weaving textile fabrics, of which the following is a specification.

My invention relates to the means employed for preventing the cards perforated with holes, laced together in continuous succession and forming the design to be woven, from overlapping or engaging with each other, as they are delivered from the cylinder of a Jacquard machine, through the card being retained upon the cylinder by thefriction of the driving pins, or their becoming fouled in the holes. When overlapping of i the cards occurs through failure of delivery at the proper point, the one following on thecylinder will be apt to lay above or below the detained cards, and being carried around the circuit, will arrive at the machine again in.

that condition, unless the fault be discovered by the operator in charge of the loom, or the weaver who would rectify the disarrangement and restore them in their proper alignment. Should the disarrangement remain undiscovered, the cards so overlapping by passing on to the cylinder, will prevent the needles of the Jacquard machine from entering their proper holes, and producing the pattern by raising the warp, or opening the shed with accuracy, producing faults in the fabrics in process of manufacture. cards being uponthe cylinderat one time and overlapping each other, may be better understood when I mention that each of the operations performed by the cards, may be different by reason of the holes cut to permit the passage of the needles through the cards to enter the holes provided in the cylinder, may be located in diverse parts of the card, so that the holes in one card may be covered by unperforated parts of the other, although possibly two or more holes may come in line in which event the needles would enter those The fact of two Serial No. 480.094. (N0 model.)

holes but an imperfect weave would still result. As the operation of weaving is performed very rapidly the fault may notbe discovered until a considerable amount of cloth may be woven. The time lost in stopping the looms and cutting out the defective parts would amount to a serious consideration, as to material wasted, and time lost.

, With the application of my newly invented device to the cylinder of a Jacquard machine that loss and delay would be avoided; as it would insure the regular delivery of each card from engagement with the pins, located at each end of the cylinder, on the difierent faces, as the cylinder revolves. The cards necessarily being carried by the pins are apt performed their office or duty and after the cylinder has rotated and brought a fresh or different card in contact with the needles. At this time an outward blow, force or pressure is given bymy device that efiectually detaches the card from the pins or pegs and the cylinder permitting it to fall away in its proper position and alignment, with reference to the neighboring cards to which it is laced and so travel onward to repeat its duty again. This I accomplish by the device described in the following specification and illustrated in the drawingsaccompanying it, in which- Figure 1, is a plan view of the cylinder, showing my device attached; with a partly broken card in engagement. Fig. 2, is a cross section of cylinder on line Z Z. Fig. 3, is an end view of a cylinder, with cards in position showing operation of device. Fig. 4, is an end view of cylinder showing cards in position, and card to be delivered fouled and caught.

Similar letters bear reference to similar parts in thedrawings and specification. I will now proceed to describethe construction of my newly invented device for insur ing the proper release of the cards from the cylinder of Jacquard machine.

A. Fig. 1, represents a cylinder of Jacquard machine of the usual construction, B. B. the spindles or gudgeons upon which,it rotates,

Q. G. loose collars for adjusting the same in bearings formed in the Jacquard machine to cling or adhere to the pins after they have My releasing device consists of a rod or stem N on the threaded end of which are plungers P and P. two being used at each end of the cylinder -A and each being double ended, provided each face and end? with a plunger hammer or forcing device as shown. At each end of the cylinder A near the front edge H and in the space Hbetween the holes F and F are drilled transversely through the cylinder from two of the faces suitable holes L of a size sufficiently large to permit the stem Nof the device to slide'loosely backwardand forward. The plungers P P located on the threaded ends of the stem N are similar to a nut, being of a largerdiameter than the stem, and of a length equal to their diameter, have recesses P P provided for their reception in the holes L at each end, and in all the faces, of the cylinder A as shown in Fig. 2. The recesses P P are formed sufficiently deep to contain loosely the plunger P or P and allow them to lay embedded in the holes P P leaving the end or face 1? flush with one of the faces of the eylinder'A which may be uppermost'in operation. The length of the stem N is longer than the length of the hole L such additional length being nearly equal to the length of one of the plungers P or P so that when'one plunger P is embedded in the'face of the cylinder A the other oneP is projected outward some distance from the opposite face as in Fig. 3. The distance plunger P or P projects outward from the face of the cylinder may equal the height that the pins or pegs D stand from the face of thee'ylinder, or may even exceed it. The stem Nis preferably formed of steel, brass, or iron wire of suitable diameter with a thread N formed at each endof' a suitable pitch to'engage similar threads formed in the plungers P P which have suitable holes drilled through them for that purpose. The plungers P P are formed of brass, alloy of' lead or other heavy metal, not liable to oxidation, as may be preferable and thethreads N on the stem N are cut to form a shoulder so that when the plungers P P are secured on the threads N formed on the stem N of the device they shall be firmly fastened and equal in gage, one with the other, for purposes of interchange, &c.

In adjusting the device the stem N with one of the plungers P secured to one end as described is inserted in the hole L forced in the cylinder A and is pushed in or inserted until the face P is flush orlevel with'theface of the cylinder A. "This leaves the other screwed'end of the stem N projecting'from the other and opposite side outwardly an'd'to which the other plunger P is then attached by its threaded hole and firmly secured. The

device may then be freely and alternately moved so as to *project one orthe otherof tlie plungers P or Pfrom their recesses P P by rotating the cylinder.

I will now proceed to describe the use and operation of my newly invented device. The

cylinderA being located in the Jacquard machine by its bearings 13. B. and held in position by the collars O. O. in the usual manner, the cylinder being closed with the pattern cards S having holes S perforated therein for needles, and holes T for engagement with the pegs or pins D, the cards S being laced together in a continuous band, by the laces W, in thejusualmanner. Motion is imparted in a rotary direction or manner to the cylinder by the mechanism of the loom communicating, by suitable levers, motionto the J acquard machine of which the cylinders form a part. A hook E in engagement with the rotating device E, contact being controlled by a spring (not shown) causes the cylinder to rotate one fourth of a revolution at each p ck or'movement of'the lathe or batten, carrying with it a'card S held upon the pins or pegs D which being perforated with suitable holes indicates the pattern to be wovenfor that pick. Another action of the hook, by reason of another movement of the batten, brings forward another card into engagement with the pins or pegs D of another face of the cylin der, which has then moved one fourth revolution, bringing the first mentioned card away from the needles and suspending by the pins D and laces Wat the side of the cylinder In thesetwo motions the releasing devices' n contact with the cards remain embedded in the cylinder on their upper portion, the'lower being projected outward. A third card being brought upon another face of the cylinder by the revolution of the cylinder another one fourth'turn the first card during this motion leaves the pins or pegs D and falls away from the cylinder being driven'from engagement by a blow or pressure'imparted by the face P of the plungers P P located at each end of the cylinder, the'blow or pressure being imparted by the change'of the center of gravity from horizontal to vertical as in Fig. 2. The blow or pressure, given alternately from each end of the releasing device, is imparted and accelerated by the sudden motion given and imparted to the cylinder in its alternate rest and motion, as the cardsare'ehanged. Oontin'uousaction of the loom in the operation of weaving brings forward by meansof the mechanism of the Jacquard machine,other cardsin' likefmanher until the whole series of'pattern' s used, when the first cardco mes into operation again. Duringthis succession of movement the releasing devices at the proper time and position, deliver 'a blowor impart a "pressure to each card sufilcient to force that card from engagement with the pinsD and permit it to follow the one preceding it and to which'it is laced as in Fig. 3; without the tendency to IZC overlay or overlap as in Fig. 4. The devices during the rotation of the cylinder A reciprocate in the holes L, P, Piformed to receive them in the cylinder A, each end of the device giving the blows orpressure alternately. The cylinder. having four sides it is obvious that the device being provided with a plunger at each end of the stem N two only are required at each end of the cylinder as one end of the device operates on one face and the other end on another and opposite face. The holes L L are drilled transversely through the ends of the cylinder at such a distance apart longitudinally that they shall not come in contact where they cross each other centrally. By means of this device cards that by reason of roughness in the holes, adhesion, or foreign substances on the card or other reasons may have a tendency to remain in contact with the cylinder with a liability to overlap the card following when released, are released from engagement with a degree of certainty not obtained hitherto.

Having described the operation and cow struction of my newly-invented releasing device for pattern-cards used in the operatlon of weaving and for other purposes, what I claim as new, and desire to secure by Letters Patent, is as follows:

The combination in a Jacquard mechanism,

of the pattern cards, and the cylinder having holes transversely through the ends thereof and pegs for positioning the cards, with plungers moving loosely in the said holes and opcrating by gravitation to strike the card upon Witnesses:

WILLIAM M. DREW, GEORGE MASON.

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