US972904A - Weft-replenishing loom. - Google Patents

Description

' I E. D. OSGOOD.& A. E. RHOADES. WEFT REPLENISHING LOQM;

APPLIOATION FILED APR.25, 190s.

ZZ/z'tn eases M Ina/622M713 PETER-i L31, umsmudwu Patented Oct. 18,1910.

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EDWARD DANA OSGOOD AND ALONZO E. RHOADES, OF I-IOPEDALE, MASSACHUSETTS,

ASSIGNOBS TO DRAPEB, COMPANY, OF HOPEDALE, MASSACHUSETTS, A CORPORA- 'IION 0F MAINE.

WEFT-REPLENISHING LOOM.

stituting a fresh weft-carrier (bobbin, copspindle or the like) for the spent weft-carrier in the working shuttle, it is important that the shuttle should be correctly located I with respect to the incoming fresh weft-carrier at the time replenishment is to take place. Heretofore weft-replenishing looms of this character have been provided with a shuttle-feeler which renders the transferring mechanism inactive in case the shuttle is misplaced too far inwardly toward the middle f the loom when a change of weft-can riers is called; and an inclined bridge within the shuttle has been employed to secure proper registration between the shuttle and the incoming weft-carrier in case the shuttle is misplaced too far outwardly away from the middle of the loom, this latter expedient being open to some objection on account of the occasional breakage of weft-carriers due thereto. The object of the present invention is t provide mechanism operatively connected with the transferrer mechanism for correctly and positively locating the shuttle with respect to the holder for the spare weft-carrier next to be inserted in case the shuttle is misplaced too far outwardly away from the middle of the loom.

One embodiment of the invention is illustrated in the accompanying drawings, wherein: V

Figure l is a view of the inner end of a portion of the magazine of a weft-replenishing loom illustrating the improved mechanism in connection therewith. Fig. 2 is a plan view of the transferrer and the connected actuating devices. Figs. 3 and 4 are vertical sections of portions of the magazine or spare weft-carrier holder showing the improved shuttle placer in two different positions. Fig. 1 is on a smaller scale than the remaining figures.

The drawings illustrate so much of the mechanism of the well-known Northrop or Specification of Letters Patent.

Application filed April 25, 1908.

Patented 0011. 1S, 1910.

Serial No. 429,231.

Draper loom (illustrated, for example, in United States Letters Patent No. 529,940, November 27, 1894:) as is necessary for an understanding of the present improvement.

A, is a portion of the framework of the replenishing side of the loom; B, is a selfthreading shuttle having weft-carrier holding spring jaws a, C, is a weft-carrier having projecting annular rings 2), cooperating with the spring jaws a, D, is a portion of the holder for the spare weft-carriers, such holder being a rotary magazine in the Draper loom; E, is the fixed stand support ing the holder; F, is the transferrer which, when a change of weft-carriers is called, descends and forces the fresh weft-carrier occupying the active or transferring position into the shuttle and concurrently ejecting downwardly the spent weft-carrier; and G is the shuttle-feeler which, in case the shuttle is misplaced inwardly and too near the middle of the loom when replenishment is called, encounters the shuttle and prevents the action of the transferrer. The shuttle-feeler is simply indicated in Fig. 4:. It may be arranged to operate as in United States Letters Patent No. 664,7 90, December 25, 1900. All of these parts cooperate in the same way as in the Draper loom.

The added parts illustrated in the drawings relate to the devices for moving the shuttle longitudinally into correct position relatively to the fresh weft-carrier next to be supplied in case the shuttle is too far out; that is, away from the middle of the loom, at the moment when atransfer of weft-carriers is to take place. These added parts are operatively connected with the transferrer and act to move the shuttle lengthwise and inwardly to a definite and proper position with respect to the weft-carrier holder and to the incoming weftcarrier. As shown in the drawings there is a shuttle placer H, which is pivotally connected to the stand E, so as to swing lengthwise of the shuttle. It has at its lower end a finger c, which is adapted to enter into the top of the shuttle and to encounter a shoulder 03, thereon. Normally, the shuttle placer occupies the elevated position shown in Fig. 8; being maintained therein by the elevating spring I, the finger a, being then above and out of the path of the shuttle. When, however, a transfer of weft-carriers is to be made, the shuttle placer descends so that its finger enters the top of the shuttle, and the shuttle placer then swings inwardly away from the stand E, a definite determined distance, and m such movement the finger c, encounters the shoulder (Z, of the shuttle and moves the shuttle lengthwise toward the feeler G, so as to bring the shuttle into a definlte relation with respect to the holder D, and the incoming fresh Weft-carrier. This inward lengthwise movement of the shuttle only occurs in case the shuttle has been moved outwardly beyond the position shown in Fig. 4. If the shuttle should occupy a position too far 1nwardly when a transfer is to take place) to receive t e incoming weft-carrier, the shuttle-feeler G, would encounter the shuttle and prevent a transfer being made.

The shuttle placer, it will be noted, has both an up and down and a swinging movement. To allow this it has a pivoting stud e projecting in both directions, as shown in Fig. 1, and entering in vertical guidlng slots 7 in the stand H. The downward movement of the shuttle placer is caused by a pusher J which encounters ashoulder g of the shuttle placer; and the swing of the shuttle placer is caused by an actuator K which enters a cam-shaped slot h in the shuttle placer. The actuator K is a swinging arm rigidly secured to the transferrer F so as to swing concurrently therewith on the same axis 2'. The pusher J is pivoted at m, to the actuator K and is yieldingly connected with the transferrer by means of lug s, on the transferrer, headed pin t, passing through said lug, collar a, fast to said pin, and spring L interposed between the said lug s and the outer end of the pusher J.

When the transferrer descends to insert a fresh weft-carrier into the shuttle, the pusher and actuator swing with it, their inner ends swinging downwardly. During this downward movement the pusher comes into contact with the shoulder g and during the preliminary downward movement before the shoulder is encountered the actuator moves idly in the vertical portion of the slot 71. The pusher, actuator and shuttle-placer then descend concurrently until the further descent of the shuttle placer is prevented by its finger 0, encountering a horizontal plate as, of the shuttle. Thereafter, the actuator continues to descend, entering the inclined portion of the slot 71,, thereby causing the shuttle placer to swing inwardly away from the stand E, and hence to move the shuttle to the proper position. During this final move ment of the actuator K, the pusher J does not swing, this differential movement being permitted by the elastic connection between the transferrer and the pusher which involves the spring L. This insures the shuttle occupying a proper position with respect to the incoming weft-carrier to correctly receive the same between its spring jaws h.

During the final downward movement of the pusher J, it travels through the lower part of the slot h, which lower part is then vertical. Hence, the shuttle is brought to its position before the fresh weft-carrier encounters the holding jaws a, of the shuttle.

When the transferrer resumes its normal elevated position the actuator and pusher rise to their normal elevated position and the spring I restores the shuttle placer to. its elevated position shown in Fig. 3.

This mechanism provides a positive mechanism for moving the shuttle lengthwise and inwardly when said mechanism is operatively connected and actuated by the transferrer, thereby insuring proper coordination between the placing of the shuttle and the insertion of the fresh weft-carrier.

What we claim is 1. A weft-replenishing loom having, in combination, a holder for a spare weft-carrier; a transferrer to transfer the spare weft -carrier from the holder to the working shuttle; a rising, falling and swinging shuttle placer having a cam slot and a finger adapted to enter the shuttle and encounter a shoulder thereof; a spring tending to lift the shuttle placer; a swinging pusher yieldingly connected to the transferrer to move said shuttle placer downwardly; and an actuator connected with said transferrer and entering the cam-slot of said shuttle placer.

2. A weft-replenishing loom having, in combination, a holder for a spare weft-can rier; a transferrer for transferring said weft-carrier into the working shuttle on the loom; a vertically moving shuttle placer adapted to swing lengthwise of the shuttle; and connecting mechanism between said placer and transferrer whereby when the transferrer acts the placer descends into operative relation with the shuttle and swings inwardly to move the shuttle inwardly should the shuttle be displaced too far outwardly.

3. A weft-replenishing loom having, in combination, a holder for a spare weft-carrier; a transferrer for transferring said weft-carrier into the working shuttle on the loom; a vertically moving shuttle placer adapted to swing lengthwise of the shuttle; and mechanism causing the placer to descend into operative relation with the shuttle and to swing inwardly to move the shuttle inwardly.

1. A weft-replenishing loom having, in combination, a holder for a spare weft-carrier; a transferrer for transferring said weft-carrier into the working shuttle on the loom; a shuttle placer carried by a fixed part of the loom and adapted to swing lengthwise of the shuttle; and connecting mechanism independent of the spare weft-carrier between said placer and transferrer whereby when the transferrer acts the placer swings inwardly to engage the shuttle and move it inwardly.

5. A weft-replenishing loom having, in combination, a holder for a spare weft-carrier; a transferrer for transferring said weft-carrier into the working shuttle on the loom; a shuttle placer carried by a fixed part of the loom and adapted to engage the shuttle and to move it lengthwise; and connecting mechanism independent of the spare weft-carrier between said placer and transferrer whereby when the transferrer acts the placer engages the shuttle and moves it into position.

6. A weft-replenishing loom having, in combination, a holder for a spare weft-carrier; a transferrer to transfer the spare weft-carrier from the holder to the working shuttle, a shuttle placer carried by a fixed part of the loom and adapted to move the shuttle lengthwise, and connecting mechanism independent of the spare weft-carrier between said placer and transferrer whereby when the transferrer acts the placer engages the shuttle and moves it into position before the fresh weft-carrier is completely inserted within the shuttle.

7 In a loom provided with mechanism to insert automatically a fresh bobbin in the working shuttle when replenishment of the running weft is called for, in combination, a shuttle-positioning device located above the shuttle path, and means to actuate the device independently of the bobbin about to be inserted in the shuttle, to descend into and engage and move the shuttle inward, when necessary, into bobbin-receiving position.

8. In a loom provided with mechanism to insert automatically a fresh bobbin in the working shuttle when replenishment of the running weft is called for, in combination, a shuttle-positioning device to enter and directly engage the shuttle, and means, governed by the operation of said mechanism, to actuate the shuttle-positioning device prior to the insertion of a bobbin in the shuttle and independently of the bobbin about to be inserted, said positioning device when so actuated entering the shuttle to cooperate directly therewith before the bobbin enters the interior of the shuttle.

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

EDWARD DANA OSGOOD. ALONZO E. RHOADES. lVitnesses FRANK H. FRENCH, ALBERT W. EDWARDS.

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