US720209A - Automatic filling-replenishing loom. - Google Patents

Description

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APPLICATION FILED 00'.[f.24, 1902.

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UNITED STATES PATENT OFFICE.

EVERETT S. WOOD, OF HOPEDALE, MASSACHUSETTS, ASSIGNOR TO DRAPER COMPANY, OF HOPEDALE, MASSACHUSETTS, A CORPORATION OF MAINE.

AUTOMATIC FILLING-REPLENISHING LOOM.

SPECIFICATION forming part of Letters Patent No. 720,209, dated February 10, 1903.

Application tiled October 2451902. Serial No. 128,518. (No model.)

To @ZZ whom t may concern.-

Be it known that I, EvERE'rT S. WOOD, a

citizen of the United States, and a resident of Hopedale, county of Worcester, State of Massachusetts, have invented an Improvement in Automatic Filling-Replenishing Looms, of which the following description, in connection with the accompanying drawings, is a specitication, like letters on the drawings representing like parts.

In socalled feeler-looms, wherein a fresh supply of filling is provided by replenishing mechanism operated automatically prior to complete exhaustion of filling in the running shuttle-such, for instance, as is shown and described in United States Patent No. 648,986-the replenishing mechanism is controlled as to its operation by means including a member. normally in position to be engaged and operated byan actuator; such as the weft-hammer. Through alling-feeler this member is rendered inoperative by the presence and operative by the substantial exhaustion or absence of the filling in the shuttle, fresh filling being supplied to the latter while there is still remaining in the shuttle enough filling to prevent an imperfection in the cloth. Stoppage of the loom, as by breakage of a warp-thread, will frequently occur when there is too much filling in the shuttle to be made waste, and means have been devised to automatically prevent premature or improper operation of the replenishing mechanism when the operative starts the loom after a stoppage such as referred to. When a loom is running regularly, the lay Will on beating up move farther toward the front oi' the loom' than it will on the iirst beat after the power has been thrown automatic llingreplenishing mechanism With my present invention applied thereto and shown in normal or inoperative condition. Fig. 2 is an enlarged sectional detail on the line 2 2, Fig. 1, looking toward the right. Fig. 3 is a side elevation, enlarged, of the main novel feature of the present invention; and Fig. 4 isa detail in plan of some of the partsV shown in Fig. l, butin the position assumed by the operation of starting the loom.

The breast-beam A40, layAi, filling-feeder F, the transferrerf, and the operating or controlling rock-shaft d' are and may be all as in the patent referred to,the breast-beam having` attached to it the notched holding-plate N y for the shipper NX, (the only member ofthe .stopping mechanism illustrated.) The feelerarm f2X fSX, fulcrumed at d and provided with a wear-plate 90, and the feeler proper, fx, are substantially as in United States Patent No. 677,607, the feeler intermittingly passing Vthrough slots in the shuttle-box BX -and shuttle S to periodically engage and be moved by the filling in the shuttle-until such illing is exhausted to a predetermined extent.

A member of the controlling means for the replenishing mechanism is shown as alatch d6, pivoted at its outer end at d4 on an upturned arm d5, fast on the rock-shaft d', Fig. 2, the rear end of the latch extending beyondY the breast-beam at (i7, and a beveled or cam face d8 is formed on the under edge of the latch. (See dotted lines, Fig. 2.)

The weft-hammer W has secured to its upper end (at one side of the guide for the weft-fork slide lm) an upturned head w, having a notched bunter wx, (shown in dotted lines, Fig. 2,) to at times engage the end d7 of the latch. An upturned projection w on the headw is adapted to travel beneath the end di of the latch and to at times cooperate with the cam-face d8, for a purpose to be described. The wefthammer acts in usual manner upon detection of lling failure by the filling-fork 'm to move the slide lm outward and operate the knock-oft lever n n2, Fig. l, to release the shipper. Aspring tends to move the wear-plate 90 beneath an overhanging shoulder di on the latch, (see Fig. 2,) to

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thereby maintain the end (Z7 of the latter in the path of the bunter wx. Filling-induced movement of the feeler, however, withdraws the plate 90 and permits the latch end (Z7 to drop below the bunter-path, the projection w' passing from beneath the said end before the bunter has moved far enough forward to engage it. lVhen the weft-hammer swings back, the projection w' travels along the under edge of the latch to the cam-face d8, and thereby lifts the latch into the position shown in Fig. 2 and permits the plate 90 to again pass under the shoulderd. When the plate is not withdrawn, as will occur when the filling in the shuttle has been exhausted to a predetermined extent, the bunter will engage the end dT and move the latch d6 outward, rocking the arm di and the shaft (Z in the direction of arrow 20, Fig. 2, and effecting the actuation of the replenishing mechanism in wellknown manner.

In accordance with my present invention the holding-plate N is provided with an upright stud hX, Figs. 1, 3, and 4, passing through the elongated hub 7a of a lever 71 which rests on the plate, a washer 15 and nut 71,2 on the stud serving to frictionally control the lever and prevent accidental swinging movement thereof. The frontend of the lever projects over the slot l2 in the plate N opposite the holding-notch 13 and is shaped to present a convex cam-face h3, which lies in the path of the shipper when the latter is moved into running position. The rear end of the lever projects beyond the rear edge of the plate N and has secured to it a yielding or resilient extension h4, such as a strip of steel, (shown in Fig. 3 as downturned and bent over at its extremity, as at h5.) An upturned lug or projection 71,6 is formed on the lever in frontof the feeler-arm fzx, beneath which the rear end of the lever extends. W'hen the operative moves the shipperfrom stopping position, Fig. 1, to running position, Fig. 4, it engages the cam-face h3 and turns the lever on its fulcrum in direction of arrow 30, Fig. 1, into the position shown in Fig. 4, the projection 7L engaging the feeler-arm f2X and moving it to withdraw the plate 90 from beneath the latchshoulder (Z9, the projection at such time being between the lever-fulcrum and its point of engagement with the feeler-arm. Consequently the latch end (Z7 drops below the bunter-path as the weft-hammer moves forward, and the rock-shaft d cannot be turned, as it might occur should the filling in the shuttle fail to act upon the feeler and withdraw plate 90 on the first beat up of the lay. The lay on this first beat, however, engages the end of the yielding extension 71.4 and turns the lever h back toward its normal position, throwing the projection h6 off center, and thereupon the spring acts, through the feeler-arm, to move the lever into normal position against a stop-lug 35 on the holdingplate N when the latch end Z7 has been raised, as described, to permit the plate 90 to again pass underneath the latch-shoulder (Z9. The yielding extension h4 prevents any breakage of the parts should the lever 7L move hard or should there be any accidental obstruction to its movement, and by bending the extension in or out the throw of the lever can be adjusted when necessary. By the time the lever has been turned back to normal position the loom will have attained sufiicient headway to insure proper filling -induced movement of the feeler, and thereafter the member d will be controlled by or through the feeler. When the shipper is released from its holding-notch to eiect stoppage of the loom, it will slide past the cam-face h3 of the lever and out to the end of the slot 12. The movement of the lever 71 is positive in each direction, and it does not depend on spring action for its proper operation, so that it can be thoroughly depended upon at all times.

Having fully described my invention, 'what I claim as new, and desire to secure by Letters Patent, is-

1. In a loom provided with automatic filling replenishing mechanism, a controlling member therefor rendered inoperative by the presence and operative by the substantial absence of filling in the shuttle, a pivotallymounted device caused to turn on its fulcrum by or through starting of the loom, to render said member inoperative, and a moving part of the loom to subsequently engage said device and turn it back from operative position, to thereby restore the controlling member to the influence of the lling in the shuttle.

2. A loom having in combination a member to cause or control the operation of a fillingreplenishing mechanism, and made inactive by the presence and active by the substantial absence of filling in the shuttle, a pivoted device turned on its fulcrum by or through starting of the loom, to prevent influence of said controlling member by the shuttle-filling, said device having a yielding extension, and a moving part of the loom to subsequently engage such yielding extension and turn the device from operative position, to thereby restore the controlling member to the infiuence of the filling in the shuttle.

3. A loom having in combination a member to cause or control the operation of a fillingreplenishing mechanism, and made inactive by the presence and active by the substantial absence of filling in the shuttle, a lever having a yielding extension, and a cam-face, the latter being moved by or through starting of the loom to turn the lever on its fulcrum and prevent the influence of said controlling member by the shuttle-filling, and a moving pal't of the loom to subsequently engage the yielding extension and turn the lever back from operative position, to thereby restore the controlling member to the iufiuence of the filling in the shuttle.

4. A loom having in combination a member to cause or control the operation of a fillingreplenishing mechanism, and made inactive IOO IIO

by the presence and active by the substantial absence of filling in the shuttle, a pivoted device turned on its fulcrum by or through starting of the loom, to prevent influence of said controlling member by the shuttle-filling, said device having a yielding extension, a fixed stop for said device, and a moving part of the loom to subsequently engage such yielding extension and turn the device back against its stop into inoperative position, to thereby restore the controlling member to the influence of the filling in the shuttle.

5. In a loom provided with automatic fillingreplenishing mechanism, a controlling member therefor rendered inoperative by the presence and operative by the substantial absence of filling in the shuttle, a shipper, a lever turned by movement of the shipper to running position to render said controlling member irresponsive to the shuttle-filling, and means to turn the lever back to normal, inoperative position after the loom has started, to thereby restore the controlling member to the influence of the filling in the shuttle.V

' 6. In a loom provided with automatic llingreplenishing mechanism, a controlling member therefor rendered inoperative by the presence and operative by the substantial absence of lling in the shuttle, a shipper, a lever having a yielding extension and a camface, the shipper when moved to running position acting upon the cam-face to turn the lever and thereby render the controlling membei` irresponsive to the shuttle-filling, and a moving part of the loom to subsequently engage the yielding extension and turn the lever backward, to thereby restore the controlling member to the influence of the shuttle-filling.

7. In a loom provided with automatic tilling-su'pplying mechanism, controlling means therefor, including a membermoved into inoperative position by` filling-induced movement of the feeler, a feeler intermittingly moved by or through the filling in the shuttle until said filling is exhausted to a predetermined extent, a shipper, a lever fulcru med adjacent the feeler and having a lug thereon, movement of the shipper to -running position turning the lever and causing its lug to act upon the feeler, to therethrough render said member of the controlling means inoperative and automatic means to subsequently return the lever to normal position, to relieve the feeler from its control when filling-induced movement of the feeler is established.

8. In a loom provided with automatic filling-supplying mechanism, controlling means therefor, including a member moved* into inoperative position by filling-induced movement of the feeler, a feeler intermittingly moved by or through the filling in the shuttle until said filling is exhausted to a predetermined extent, a shipper, a lever fulcrumed adjacent the feeler and having a yielding ex tension on its rear end and a cam-face on its front end, and an upturned lug, the shipper when moved to running position acting upon the cam-face and turning the lever to cause its lug to act upon the feeler and therethrough render said member of the controlling meansV inoperative, and a moving part of the loom to subsequently engage the yielding extension of and turn the lever backward, to relieve the feeler from its control when fillinginduced movement of the feeleris established. In testimony whereof I have signed my name to this specication in the presence of two subscribing witnesses.

EVERETT S. WOOD. Witnesses:

GEORGE Oris DRAPER, ERNEST W. WOOD.

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