US767934A - Weft-replenishing means for looms. - Google Patents

Description

110.767,934. PATBNTED J11111.16, 1904. J.A.GEND110N.

WEFT REPLENISHING MEANS FOR LOOMS.

APPLIOATION FILED JUNE 11. 1901.

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v J. A. GENDRON. WEPT REPLENISHING MEANS POR LOOMS.

APPLICATION FILED JUNE 11, 1901. l

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No. 767,934. i PATENTED AUG. 16. 1904. J. A. GENDRON.

WEPT R-EPLLBTISHIBIG` MEANS POR LOOMS.

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UNITED j STATES Patented August 16, 1904.

JOSEPH A. GENDRON, OF NASHUA, NEW HAMPSHIRE.

WEFT-REPLENISHING MEANS FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 767,934, dated August 16, 1904.

Application iiled Tune ll, 1901.

p To all whom t may concern,.-

Be it known that I, JOSEPH A. GENDRON, a citizen of the United States, and aresident of Nashua, county of Hillsboro, State of New Hampshire, have invented certain new and useful Improvements in Weft-Replenishing Means for Looms, of which the following is a full, clear, and exact description.

The object of my invention is to .produce a loom having features of noveltyl and advantage over those now in use.

Referring to the drawings, Figure l is a front elevation of a loom in which my invention is embodied. Fig. 2 is an end view of the same. Fig. 2a is a detail view of the tripping and returning mechanism, on enlarged scale. Fig. 2b is a detailed plan view of catchplate @15. Fig. 3 is a top view on the line-wm of Fig. l. Fig. 3 is a detail view of the tripping device, on enlarged scale.

Referring to the drawings, A denotes the frame of a loom, and B denotes the lay-frame, which is pivoted in the loom-frame and is of the ordinary construction adapted to swing in one direction while the warp-threads are separated or shed to permit a passage of the shuttle and in the opposite direction to lay the weft-thread in each passage of the shuttle through the Warp. The power-shaft C, which drives the moving parts of the loom,is mounted on the loom-frame, as at D, and is connected by links with the lay-frame, as shown clearly in Figs. 2 and 3, so that as the shaft revolves it will impart an oscillating movement to the lay-frame, this connection being arranged to move the lay-frame to beat up the thread which has been passed through the warp by the shuttle on the top of the layframe. At each end I mount what may be called shuttle-carriers E F, which control the movement of the shuttle to and fro through the warp-threads. These carriers have 'a limited movement toward and away from each other, which movement is controlled by the levers G, pivoted at their lower ends to the lay rock-shaft and having lugs H projecting therefrom, which work in cam-slots a in stationary plates I, which are secured to the loom-frame. Figs. l, 2, and 3 show this camslotted plate and the lugs on the levers Gand Serial No. 64,084. (No model.)

the connecting of these levers with the shuttle-carriers. It is clear that as the lay-frame oscillates under the impulse of the powershaft the lugs on the levers G will travel in the cam-slots, moving the shuttle-carriers E F toward each other at the same time. These carriers are provided with spring gripping-iingers. In their movement toward each other they come so near together as to permit the empty carrier toV grip the end of the shuttle and remove it from the jaws of the other carrier, whose grip on the shuttle has been automatically released. This feature of the invention constitutes the subject-matter of a divisional application filed by me on August 17, 1901, Serial No. 72,406, which became Patent No. 714,169, datedNovember 25, 1902.

In connection with this loom and shuttle-carrier I have provided a means for supplying to the carrier afull shuttle as soon as the thread in the one in use is spent. This system comprises the use of a rack (l, arranged to slide vertically in the frame e and normally held in its raised position by the springs f. From the rear of this rack projects a lug g, and pivoted in the frame which supports the rack are the lingers it z', preferably pivoted on the same rock-shaft, the fingers /L engaging the lug on the rack to move it 'downward when the finger is moved, and the fingers c' are arranged to strike a shuttle at each end when the rack is in its lower position and knock the empty shuttle from the carrier and put in its place a full shuttle. The movement of these fingers is controlled, primarily, by a suitable stop-motion device, which, with its connections, is illustrated in Fig. 2. A slide am carries at one side a weftfork a and at its opposite side is connected through the arm @13 with the shaft a, carrying the cam a, which operates against a lever The upper end of this lever I) projects through a slot a" in the plate am, this slot being provided with the shoulder am. The lever I) is also connected with one end of a rockshaft c. At its opposite end this rock-shaft is connected with a iinger m, as by the link 71, and the crank-arm o, the finger m being pivoted to one end of a pivoted lever Z, which at its opposite end is connected with thelever 7c by a link j. On the power-shaft is a gear M,

meshing with the gear N, mounted on the jack-shaft K, the gear N being preferably twice the size of the gear M. Secured to the power-shaft adjacent to the gear M is a sleeve L, having pivoted to it a trip device having arms p fr. A lug s on the gear M is arranged to strike the arm /r of the trip device at every revolution, which will be at every second revolution oi' the power-shaft. The relative position of the parts when the machine is running is shownin plan view in Fig. 3, the finger m being thrown to one side to the path of movement of the arm p.

If the thread happens to break orbecome spent, the weft-fork con on the slide al", acting in the usual manner through the arm (L13, rocks the shaft am and causes the cam a to disengage the lever b from the shoulder al in the slot a, formed in the plate @15. Upon being released from the shoulder al the lever b is thrown forward,- rockingl the shaft c 'and bringing the arm 0 and the linger m into the position shown in dotted lines in Fig. 2f. /Vhen the lug on the gear strikes the arm o, it will throw the arm p to the position shown in dotted lines in Fig. 3 and in full lines in Fig.

2 directly over the linger m. The arm p, revolving with the shaft, will press down the linger m and rock the lever 7c on its pivot Z, throwing' the link j upward and rocking down the Jfingers /L vi The linger /t carries with it the rack holding the shuttles, and when it is in its lowest position the lingers f1 engage each end of the shuttle and force it down between the gripping-lingers Vof the shuttle-carrier, pushing the empty shuttle into a box or some such receptacle in the lower part of the loom. As the linger m is pressed down by the arm p it rides down the inclined face of the face t, which throws it to the left and through the link a and the crank-arm 0 rocks the shaft c back toits normal position, engaging the lever with the shoulder (am in the plate a, The ends of the threads from each oi' the shuttles as they are in the rack are passed through a notch in the post fu, as shown in Fig. E2, so that as a new shuttle is delivered to the carrier this thread will be held during' the initial movement of the shuttle across the warp.

I claim as my improvementl. In a loom in combination the shuttlecarrier, the shuttle-rack movable vertically, and means for automatically delivering the lull shuttles from said rack to said carrier.

2. In a loom in combination the shuttlecarrier, a stop-motion device, the shuttle-rack movable vertically, and means controlled by a stop-motion device for automatically delivering a full shuttle from the rack to the carrier, substantially as described.

3. In a loom, in combination, the shuttlecarrier, the rack movable in a vertical plane and arranged in operative relation to said carrier and adapted to receive and retain shuttles, means for moving the shuttle from the rack to the carrier, a stop-motion device, and automatically-operated connections between said means and the stop-motion device, substantially as described.

4. In a loom, in combination, the shuttlecarrier and its operating mechanism, a stopmotion device, a rack, adapted to receive and retain shuttles, mounted in operative relation to said carrier, and automatically-operated means for moving the shuttle from the rack to the carrier comprising a system of levers having a pivoted arm adapted to move in a horizontal plane, connections betweenl this pivoted arm and a stop-motion device, and a revolubly-mounted trip, arranged to engage said pivoted arm when it is moved from its normal position by the action of the stop-motion device, substantially as and for the purposes specilied.

5. In a loom, the combination with the shuttlc-carrier, the rack arranged to receive and retain the shuttles, said rack being held normally in its raised position by springs, and automatically-operated means for moving said rack downwardly, and means for moving a shuttle from the rack to the carrier, substantially as described.

6. In a loom, the combination with the shuttlc-carrier, the shuttle-holding rack and a stop-motion device, of means interposed between said rack and the stop-motion device for operating the rack, said means comprising a horizontally-pivoted arm and a coacting revoluble trip, said arm being normally held out of the path of movement of said trip, automatic means for throwing said arm into the path or' movement of said trip, and means for returning said arm to its normal position, substantially as described.

JOSEPH A. GENDRON.

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