US1174426A - Self-threading shuttle. - Google Patents

Description

H. A. KENNEDY..

SELF THREADING SHUTTLE.

APPLICATION FILED JULY3I, 1915.

1,174,426. Papented Max. 7, 1916.

HENRY A. KENNEDY, 0E PROVIDENCE, RnoDE ISLAND, assIe'NoR. TO HEEMANN E. o.

MORLOCK, 0E PROVIDENCE, ODE ISLAND.

SELF-THREADING SHUTTLE.

Specification of Letters Patent.

Patented Mar. a, rare.

Application filed July 31, 1915. 7 Serial No. 42,958.

To all whom it may concern Be it known that I, HENRY A. KENNEDY, a citizen of the United States, residing at Providence, in the county of Providence, State of Rhode Island, have invented certain new and useful Improvements in Self- Threading Shuttles, of which the following shuttle, and arranged to be held in position without the use of pins, screws, bolts, clamps or other fastening-means.

Further objects of my improvements are to provide for more reliable automatic threading of the shuttle-eye, to prevent the yarn from whipping out of place after the shuttle has been threaded, and to'render the device more economical to manufacture, easier to apply and more durable in use.

The invention is fully described in the following specification, illustrated by the accompanying drawings, erence characters designate like parts.

. In the drawings: Figure 1 is a plan view of the delivery-end of a usual form of broad-loom shuttle showing my improved delivery-eye applied thereto; Fig. 2, a side view of the same; Fig. .3, atransverse, sectional view of the shuttle on the line XX of Fig. 2, looking in the direction indicated by the arrow 00,- Fig. 4:,a similar view also taken on the line X-X, but looking in the opposite direction from that indicated by the arrow m; Fig. 5, a plan view of the deliveryeye by itself; and Figs. 6 and 7 two different side views of the same.

Referring first to Figsx5, 6 and 7, my improved guide or delivery-eye is preferably made in the form of a substantially rectangular block B having oneof its ends curved or rounded off in a vertical, cylindrical plane. This shape adapts it to be easily molded from porcelain, glass or other vitreous material capable of resisting'wear and abrasion, and also provides for its insertion in the shuttle after a very simple operation of cutting away the wood thereof .to form the recessed ledge Z),

the center of the block.

in which like refas more fully explained hereinafter. The upper, fiat face of the block 13 is cut away or stepped down across its width at 7) see Fig. 7 Overhangingthe ledge 12. is a downwardly curved lip or flange Z, which, with the I rounded shoulder 6, forms a sort of hook extending clear across the top of the block B. Reaching up through the block from its bottom. to the ledge 12 is a vertical hole 71. which underlies the lip Z at approximately Extending laterally from the hole It is a transverse bore 0 'which opens on the rounded end of the blockB to adapt it to serve as a threadpassage for the yarn as it delivers from the side of the shuttle. From one edge of the transverse shoulder 79 the block B is cut through with a relatively narrow slit 2? reaching into the bore or thread-passage c. The slit t is inclineddownwardly from the ledge-portion b and develops a helical contour; as it extends around the curvedv end of the block to a point midway thereof.

The} end of the helix intersects the outer face of the block at a point below the opening of the thread-passage c and is connected therewith by a vertical slit or cut cl.

It will be observed from the foregoing description that my improved thread-guide is extremely. simple in form and structure, and it can be fitted to the shuttle in a very simple manner.

Referring now to Figs. 1, 2, 3 and 4, the

delivery en of-the shuttle S is provided with the usual. vertical thread-slit s extending longitudinally forward from the bobbin-chamber or recess B. At 8 the top of the shuttle is'cut away or recessed from the edge of the slit 8 to its delivery side and a transverse slit s -extends at an angle down into a circular side-opening 0 which opens into the usual longitudinal thread-groove g. The upper end of the slit .9 forms an inclined shoulder a to guide the yarn down into the side-opening 0 of the shuttle with which the thread-passage c of the deliveryeye or block B is adapted to register. To insert the block B in place it is only necessary to bore up through the bottom of the shuttle and chisel out an opening adapted to conform to the shape of the block.

Th opening 6, see Figs. 3 and 4, is made of sufficient depth so that when the top of the block seats against its end the "thread-pas;

of the shuttle.

sage a will register with the side-opening 0 After the block is thus set in place, a wooden plug or cap is is fitted to the opening 6 abutting the under side of the block, and is then planed off flush with the bottom of the shuttle. The cap is glued or cemented in place or may be held by a suitable metal plate fastened to the bottom of the shuttle if desired. The fiat sides of the block B abut the sides of the opening 6 to keep it from turning and the block is entirely inclosed and surrounded by the walls of the opening to protect it from damage. At the rear of the block B the wood of the shuttle is cut away to form a substantially cylindrical, horizontal thread-passage p which alines with the curved opening under the lip Z of the block B. Usually a piece of felt or similar material is cemented in place at the mouth of the thread-passage p to serve as a tensioning-means for the yarn.

In threading the shuttle the yarn is drawn off from the bobbin or cop Y and led forward to adapt it to enter the vertical thread-slit s. \Vhen the shuttle is put into operation the end of the yarn is secured at an appropriate point to draw the yarn back through the inclined slit s as theshuttle is thrown across the loom. It will be noted from Figs. 3 and 4 that the curved lip Z on the top of the block B lies directly under the thread-slit s, but without obstructing the passage of the yarn therethrough. Therefore as the yarn y is drawn down into the slit 3 it will ride over the curved edge of the lip Z and seat against the flat ledge Z). Now, as the yarn is drawn back and down through the transverse slit 8 it will be caused to enter through the contracted opening t on the side of the block B and will thence be directed up through the slit (Z into the lateral thread-passage 0. As the yarn 3 delivers from the bobbin Y it draws across the felt f and through the thread-passage p, thence across the ledge I) of the block B while leading under the lip Z, and then down through the hole It and out through the lateral thread-passage 0.

Referring to Figs, 2, 3 and 4, it is to be noted that the edge of the side-opening 0 of the shuttle S overlaps the slit d where it leads up into the thread-passage a while leaving a contracted opening 0', see Fig. 4, between the wood of the shuttle and the side of the block. This allows the yarn to pass from the slit t up through the slit d to the thread-passage 0, but prevents the yarn from whipping out of its thread-eye during the operation of the shuttle. In the same way the curved lip Z acts as a barrier to prevent the yarn from riding up out of the slit 8 when the tension on the yarn is slackened.

My improved delivery-eye or thread-guide is so simple in design and small in dimensions as to render it capable of being manufactured at very small cost, while being adapted for molding from porcelain or similar material. It can be applied to the shuttle after cutting away but a very slight portion of the wood, and hence the shuttle is not badly mutilated or weakened as is usually the case. When in place it is completely inclosed and protected by the walls of the shuttle so that there is little liability of its becoming cracked or broken. Being constructed of porcelain or other vitreous inaterial it is practically proof against wear from the abrasive action of the yarn drawing through its thread-passages and hence is much more durable than the usual metal thread-eye. It can be secured in place in the shuttle without the use of pins, bolts, screws or other similar fastening-devices and therefore is much easier to apply, and less liable of getting loose or becoming detached. In operation the shuttle is most easily and quickly threaded through the automatic action of the eye and in addition my improvement gives a particularly neat and finished appearance to the whole shuttle.

Various modifications might be made in the form and structure of my improved device without departing from the spirit or scope of the invention; therefore,

lVithout limiting myself to the exact embodiment shown and described, what I claim .is:- r

1. A delivery-eye for loom-shuttles molded from vitreous material, such as porcelain or glass, in the form of a substantially rec tangular block having one of its ends rounded off in a vertical. plane and its top recessed to form a transverse shoulder providing a ledge across which the yarn is adapted to draw, said block formed with a vertical hole extending through it from top to bottom with the side of the hole adjacent the shoulder on the top of the block, and with a lat eral thread-passage leading from the axial hole to the rounded side of the block and communicating with the top of the block through a relatively narrow helical slit cut through the rounded side of the block from a point below the end of the lateral thread-passage and communicating there with through an abrupt bend at its end 2. A delivery-eye for loom-shuttles constructed in the form of a substantially rectangular block having one ofits ends roun ded off in a vertical plane, the top of the block being stepped down to form a recessed ledge with a shoulder projecting outwardly in a lip curved downwardly to overhang the ledge across its width, said block being also formed with a vertical hole reaching up through the ledge beneath the overhanging lip, a lateral thread-passage extending from the vertical hole to the rounded end of the block, and an angularly-disposed thread-slit cut through the side of the block downwardly from the top of the ledge and terminating in an abrupt bend leading into the bottom of the lateral thread-passage.

3. In a self-threading shuttle provided with the longitudinal bobbin-chamber having a vertical thread-slit leading forwardlytherefrom and communicating through a lateral slit with the side of the shuttle, said lateral slit terminating in a circular sideopening disposed in the longitudinal threadgroove on the side of the shuttle, the combination of a substantially rectangular block formed with one of its ends rounded offv in a vertical plane and fittedto a correspondingly-shaped opening in the bottom of the shuttle, the top of the block being cut away to form a recessed ledge having an overhanging, downwardly-curved lip underlying Copies of this patent may be obtained for five cents each, by addressing the the longitudinal thread-slit of the shuttle, said block also formed with a vertical hole opening on the top of the ledge and a transverse thread-passage leading therefrom to the rounded end of the block to register with the side-openingof the shuttle, and a contracted thread-slit cut through the forward side of the block from the top of its ledge and extending downwardly at an angle to a point beneath the outer end of the trans verse thread-passage with which it communicates through an abrupt bend.

In testimony whereof I affix my signature in presence of two witnesses.

HENRY A. KENNEDY.

\Vitnesses:

HERBERT K. ALL/ARD, GEO. A. WHITE, Jr.

Commissioner of Patents,

Washington, D. 0. V

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