US1131833A - Stop-motion for looms. - Google Patents

Description

T. GOODWIN 8; G. GHEETHAM.

STOP MOTION FOR LOOMS. APPLIOATION FILED HOV. 20, 1907. 1,1 31,833. Patented Mar. 16, 1915.

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THE NORRIS PETERS 60., PHOTIJ-LITHQ. WASHINGTON. D. C.

T. GOODWIN & G. GHEETHAM.

STOP MOTION FOR LOOMS.

APPLICATION FILED NOV. 20, 1907.

1,1 31,833, Patented Mar. 16, 1915.

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witnesses Inven Z01: JZ za/cz ($53 Thomas Goodwzn. (20W WWW/4A George Cheeiham.

y flw a GM fliiya THE NORRIS PETERS 60.. PHOmLITHQ, WASHINGTON :7. c

T. GOODWIN & G. GHBETHAM.

STOP MOTION FOR LOOMS. APPLIOATION FILED NOV. 20, 1907.

1,131,833, Patented Mar. 16, 1915.

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ZlZiZnesses i In wen/$01 9 560W Thomas Goodwzn.

THE NORRIS PETERS c0. PHOTO-L!THO.. WASHINGTON, D. C.

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THOMAS GOODWIN, OF FALL RIVER, MASSACHUSETTS, AND GEORGE OHEETl-IAM, OF

TIVERTON, RHODE ISLAND, ASSIGNORS TO JAMES K. LANNING, OF BOSTON, MASSA- CHUSET'IS.

STOP-MOTION FOR LOOllIS.

To all whom it may concern:

Be it known that we, TrIoMAs Goonwnv and Gnonon GHEETHAM, citizens of the United States, residing at Fall River, in the county of Bristol, Commonwealth of Massachusetts, and Tiverton, in the county of Newport, State of Rhode Island, have invented an Improvement in Stop-Motions for Looms, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

This invention relates to stop motions which, while they may be of general application, are particularly intended for use in connection with looms for weaving.

In order that the principles of the invention may be fully understood we have in the accompanying drawings typified one embodiment thereof, wherein F igure 1 is a vertical transverse section of a loom whereto our invention is applied; Fig. 2 is a side elevation of a portion of a loom whereto our invention is applied; Fig. 3 is a vertical transverse section on an enlarged scale of a portion of the mechanism shown in Figs. 1 and 2; Fig. a is a detail showing a portion of the shipper device; Fig. 5 is a plan View of the knock-off device in its relation to the parts operative upon warp fault and weft failure; Fig. 6 is a side elevation thereof; and Fig. 7 is a detail in elevation and vertical section, upon a reduced scale, of a portion of the mechanism whereby the loom may be stopped upon the occurrence of either warp or weft failure.

An object of our invention is to provide a simple means for stopping the loom upon the occurrence of weft failure or a warp fault. It is customary to employ the lay as a cooperating element to stop the loom in the event of a warp fault, this being frequently accomplished by moving a hunter into the path of the lay whereupon the lay impacting upon the hunter throws the shipper handle out of its retaining notch and stops the loom. Usually such bunter is at or near one end of the lay and the result of the impact of the lay upon the bunter is frequently to twist the lay, leaving a mark upon the goods. Preferably, therefore, we operate the shipper lever upon the occurrence of either weft failure or warp fault from a reciprocating member mounted independently of the lay. By a reciprocating Specification of Letters Patent.

Patented Mar. 16, 1915. Serial No. 403,027.

member is meant one having movement relative to the shipper lever.

Referring to the drawings, the loom is indicated at 1, it being of any suitable construction. Herein, our invention is shown as applied to a loom of the type dlsclosed in the patent to Coldwell and G1ld ard, No. 690,636, Jan. 7, 1902, although -1t w ll, of course, be apparent that the invention may be applied to any desired type of loom. lVhile a warp stop motion of any suitable type may be employed, herein we employ warp drops 2 (Fig. 1) adapted to be mounted upon the warp threads 3, which may be suitably supported upon leasing members 4, whereby upon the occurrence of a warp fault contact is made at one end of the warp drops with a bar 5, an electric circuit 6 having therein a battery 7, being con1- pleted, the magnet 8 in said circuit being energlzed to attract the armature 9, so that 1n the present embodiment of the invention the member 10 of the armature may be elevated. The magnet 8 and its related parts may be suitably disposed at any desired part of the loom, it being herein shown as mounted upon the frame beneath the takeup mechanism.

A cloth roll of any suitable type is inclicated at 11, it being operated in any suit able manner to take up the cloth as woven and herein by means of a ratchet gear 12 with the teeth whereof engages an actuating pawl 13 herein shown as pivotally mounted at 14 upon a reciprocatory member 15, which, in the present embodiment of the invention, is a weft hammer pivoted at 16 and adapted to be operated in any usual manner as by means of a cam 17 upon a cam shaft 18, whereby upon alternate beats of the lay the upper portion of the weft hammer is reciprocated to feel for the weft fork 19, so that if it be not tilted by the presence of weft, the weft fork carrier 20 is moved upon its support to stop the loom. employ means he ein consisting of a holding pawl 21 to prevent reverse movement of the cloth roll.

A shipper device of any suitable type such as that indicated in the patent to Coldwell and Gildard may be employed, and herein is indicated in Fig. 4 at 22, it being normally positioned in the usual notch, whereby the parts of the loom are maintained in running position, the shipper dethe frame of Preferably we vice being adapted to be actuated to stop the loom in any suitable manner as by engagement therewith of a knock-0E device, herein represented as a lever 23, a portion thereof being shown in side elevation in Fig. 2 and in vertical section in Figs. 1 and 3. As-indicated most clearly in Fig. 3, when the weft fork 19 is not tilted, the weft fork carrier is moved to the right viewing said figure, by reason of the engagement of the weft fork by the weft hammer 15, a shouldered portion 24 upon the lower side of the weft fork carrier impinging against the knock-0E lever, thereby moving the same to stop the loom.

Preferably we suspend the operation of the take-up mechanism upon the occurrence of weft failure and to that end may operatively connect the take-up mechanism in any suitable manner with the weft fork carrier. ferein for the purpose, we employ a lever 25 pivoted at 26 upon the frame-of the machine, the lower end of said lever being adapted to engage with a portion of the holding pawl 21, thereby to withdraw it from engagement with the ratchet gear 12 of the take-up mechanism, the-upper end of said lever 25 engaging in any suitable manner with the weft fork carrier 20, as indicated in Fig: 3, whereby upon movement of the carrier to the right viewing said figure the holding pawl 21 is disengaged from the ratchet 12, thus suspending the action of the take-up mechanism.

In order to stop the loom on the occurrence of a warp fault without the-use of the lay as a coiiperating element, we employ a movable member which, in the present embodiment of the invention, is the weft hammer 15. Inasmuch as said weft hammer constitutes a portion of the train of mechanism for stopping the loom in the event of weft failure, we are enabled, by using said weft hammer to stop the loom upon the occurrence of awarp fault, greatly to simplify the parts while at the same time overcoming the objections heretofore set forth incident upon the use of the lay as an element of the stop motion mechanism.

hile we may operate the shipper lever on the event of warp failure by the use of the movable member, which herein is the weft hammer, in various ways, in the present embodiment of the invention, we boltupon the breast beam 27 of the loom, preferably in a manner permitting adjustment thereof, an angle iron 28 (see Figs. 1 and 3), upon the depending portion of which is pivoted, and herein intermediate the ends thereof, a lever 29 (see Figs. 1, 3, 5, 6 and 7), one end whereof is connected as by a. wire 30 (see Figs. 1 and 6) with the member 10 of the armature. The opposite end of said lever. 29 has pivotally connected thereto a swinging member 30, to which is pivotally nected at 34.- to a warp fork slide 35 mounted in any suitable manner for sliding movement upon the breast beam 27 and herein (see Figs. 3 and 7) shown as mounted in thecasting 36 having ways therein for such sliding movement of the warp fork carrier and also for the weft fork carrier 20.

Upon the occurrence of a warpfault, contact is made by a drop 2 with the bar 5, thereby completing the circuit and actuating the magnet 8 to attract the armature 9 and elevate the member 10 thereof, so as to raise the wire30 and elevate the end of the lever 29-connected thereto, thereby depressing the warp fork 33 from the position shown in Fig. 3 into a position to be operated by any suitable moving part, whereby upon such operation any suitable loom stopping devices may be operated to stop'the loom.

In thepresent embodiment of the invention, the warp thread fault detecting means i is operatively independent of the weft thread fault detecting means. The said warp thread detecting means, which, in the present embodiment of the invention, in-

cludes a warp fork, may be operated in any suitable manner. Herein, we employ, in order to simplify the mechanism and for other desirable purposes, the cam 17 and to that end mount upon the reciprocatory member or weft hammer 15', as most clearly shown in Figs. 1 and 3, an auxiliary member 37 preferably disposed in substantial parallelism with the upper portion ofthe weft hammer 15 but laterally spaced therefrom, so as to be out of the path of movement of the weft fork 19 and weft fork carrier 20.

When the warp fork 33 is depressed upon the occurrence of a warp fault, the preferably hooked free end thereof is brought into the path of movement of the auxiliary mem ber 37, the upper end whereof moves within a longitudinally slotted portion of the warp fork carrier, as indicated most clearly in Fig. 3, with the result that the warp fork carrier 35 is moved horizontally upon the casting 36 toward the knock-off lever 23. The forward end of said warp fork carrier is provided, as shown in Fig. 3, with an upright projecting portion 38 adapted, in the described movement of the warp fork carrier 35, to impinge upon the knock-0H lever 23 and operate the same to stop the loom.

As most clearly indicated in Fig. 3, the lever 25 is thrown out of'operation and the holding pawl 21 of the take-up mechanism is so curved or formed that the knockoff lever may be actuated upon the occurrence of a warp fault without interrupting the takeup mechanism. In such event the knock-off lever 23 is moved from the position indicated in Fig. 3 to the right viewing said figure without movement of the Weft form carrier 20 and hence without movement of the lever 25.

By the construction described, we avoid the objection incident to mounting the arma ture of the magnet upon the knock-off lever or weft fork carrier and are enabled independently to operate the knock-off lever upon the occurrence of weft failure or warp fault. Moreover we are enabled to locate the magnet and armature at any desired part of the loom. By the employment of the weft fork hammer 15, we are enabled, if desired, to utilize the single cam 17 to stop the loom upon the occurrence of either weft failure or warp fault, thereby doing away with a multiplicity of parts.

Important features of our invention are the provision of simple means whereby, in looms equipped with the usual weft stop mechanism, comprising a weft fork and a weft fork carrier or mounting, and means actuated by the movement of said carrier or mounting to release or throw the shipper handle, (particularly where the take up holdin means are also released by or with the we 't fault caused movement of said carrier) the same shipper handle releasing means can be used as part of an independently cooperative warp fault detecting and loom stopping mechanism without affecting said weft fork carrier or take-up holding means :and the provision of means Whereby, in a loom having the common weft stop mechanism, comprising a weft fork, weft fork carrier, weft hammer lever and other usual connections, the same vibratory member other than the lay, which in this embodiment of the invention is the weft hammer lever, is made part of the warp stop mechanism, cooperating independently of the weft stop mechanism and operatively independent 0f the weft fork and weft fork carrier.

While an electrical warp stop mechanism is herein shown, it will be apparent that we are not to be restricted thereto save when expressly so stated in the claims.

Having thus described one type or embodiment of our invention, we desire it to be understood that although specific terms are employed, they are used in a descriptive and generic sense and not for purposes oflimitation, the scope of the. invention being set forth in the following claims.

Claims:

1. A loom comprising a lay, a reciprocatory member mounted independently of the lay, a shipper device, means to retain the same in loom operating position, a knock-off device adapted to release the shipper device from said retaining means, operative connections between said reciprocatory member and said knock-off device, whereby the loom may be stopped upon the occurrence of weft failure, a warp fork 33 pivoted at one end, operating lever means 29 therefor connected to said warp fork between its ends, and a slide for said fork constituting a connection between said reciprocatory member and the knock-ofi' device, distinct from said previously mentioned operative connections, whereby the loom may be stopped upon the occurrence of a warp fault, a war a stop motion proper and an operative connection between the same and said lever means 29.

2. A loom comprising a lay, a weft hammer, a shipper device, means to retain the same in loom operating position, a knock-off device adapted to release the shipper device from said retaining means, a weft fork, a Weft fork carrier therefor, whereby upon the occurrence of weft failure the loom may be stopped, a member carried by said weft hammer and its motion clearing the weft fork, a normally elevated hooked warp fork, a carrier therefor, and a knock-off device, whereby the loom may be stopped upon the occurrence of a warp fault.

3. A loom comprising a lay, a weft hammer, a shipper device, means to retain the same in loom operating position, a knock-off device adapted to release the shipper device from said retaining means, a weft fork, a weft carrier therefor, whereby upon the occurrence of weft failure the loom may be stopped, a member carried by said weft ham mer and in its motion not impinging upon the weft fork, a warp fork and sliding carrier connection between said member and the knock-off device, whereby the loom may be stopped upon the occurrence of a warp fault, take-up mechanism, and means to operate the same upon the occurrence of weft failure, the connections being such that the takeup mechanism is not interrupted upon the occurrence of warp fault and operating means for said warp fork 33 including lever 29, member 31 pivoted thereto, wire 30, and an armature connected to said wire.

1. In a loom comprising a lay, a shipper handle, means to retain said shipper handle in loom operating position, means adapted upon the release of said shipper handle to throw said shipper handle to a loom stopping position, and a shipper handle releasing device; the combination of weft hread fault detecting and loom stopping devices, a weft hammer, a weft fork and a weft fork carrier adapted upon occurrence of a weft thread fault to actuate said shipper handle releasing device and thereby to stop the loom, a warp fork 33 and a warp fork carrier therefor operatively independent of said weft fork and carrier therefor and adapted upon the occurrence of a warp thread fault to actuate said shipper releasing device and thereby to stop the loom.

5. In a loom having a lay, a shipper handle, means to retain said shipper handle in loom operating position, means adapted upon the release of said shipper handle to throw said shipper handle to a loom stopping position, and a shipper handle releasing device; the combination of weft thread faultdetecting and loom stopping devices, a weft hammer, a weft fork, a weft fork carrier adapted upon occurrence of a weft thread fault to actuate said shipper handle releasing device and thereby to stop the loom, a warp fork 33, a warp fork carrier therefor operatively independent of the weft fork and carrier therefor, the warp fork carrier in its movement being adapted to impinge upon the means to release the shipper handle and connections adapted upon the occurrence of a warp fault to bring thewarp fork into the path of movement of the weft hammer.

6. In a loom comprising a lay, a shipper handle, means to retain said shipper handle in loom operating position, means adapted upon the release of said shipper handle to throw said shipper handleto a loom stopping position, and a shipper handle releasing device; the combination of weft thread fault detecting and loom stopping devices; a weft hammer, a weft fork and a weft fork carrier adapted upon occurrence of a weft thread fault to actuate said shipper handle releasing device and thereby to stop the loom, a warp fork 33, a carrier therefor adapted in its movement to operate the loom stopping mechanism, and means adapted upon the occurrence of a warp fault to move the warp fork into the path of movement of the weft hammer and including a magnet and armature adapted to be energized upon the occurrence of a warp fault.

' 7. A loom comprising a lay, a reciprocatory member mounted independently of the lay, a weft cam for reciprocating the same, a shipper device, means to retain the same in loom operating position, a knock-off device to release the shipper device from said retaining means, weft fault detecting means, devices cooperating therewith and with said reciprocatory member to stop the loom upon the occurrence of weft failure, electric warp thread fault detecting means including a warp fork, a warp fork carrier therefor, operatively independent of the weft fork and its carrier, means independent of the lay to render said warp fork operative or inoperative, and means also inuependent of the lay to act upon the warp fork when operatively positioned, and thereby to stop the loom upon the occurrence of weft failure.

8. A loom comprising in combination, a

?: lay, a shipper lever, means to retain said shipper handle in loom operating position, means adapted upon the release of said shipper lever to'throw the latter to loom stopping position, a shipper lever releasing device, a weft hammer, a warp hammer secured thereto, a weft fork carrier and a warp fork carrier independent of each other, a weft fork and a warp fork mounted upon said carriers respectively and adapted to be acted upon by said weft hammer and warp hammer, and means independent of the lay of the loom for rendering said weft hammer and warp hammer operative upon the occurrence of weft failure or warp fault respectively.

9. A loom comprising a lay, a reciprocatory member mounted independently of the lay, a weft cam for reciprocating said member, a shipper device normally held in loom operating position, a knock-off device to release the shipper device, weft fault detecting means, means cooperating therewith and with the reciprocatory member to stop the loom upon the occurrence of weft failure, a warp fork carrier, a warp fork pivoted thereon and having a hooked free end, means independent of the lay to render said warp fork operative or inoperative, and means also independent of the lay to cooperate with said hooked end of the warp fork to stop the loom upon the occurrence of warp failure; 7

10. A loom comprising a lay, a reciprocatory member mounted independently of the lay, a weft cam for reciprocating said member, a shipper device normally held in loom operating position, a knock-off device to release the shipper device, weft fault detecting means cooperating therewith and with the reciprocatory member to stop the loom upon the occurrence of weft failure, a sliding warp fork carrier, a warp fork mounted thereon and having a free end directed toward the breast beam of the loom, and means to engage said warp fork upon the occurrence of warp fault to stop the loom.

11. A loom comprising a lay, a reciprocatory member mounted independently of the lay, a weftcam for reciprocating said member, a shipper device normally held in loom operating position, a knock-oh device to release the shipper device, weft fault detecting means, means cooperating therewith and with the reciprocatory member to stop the loom upon the occurrence of weft failure, a warp fork carrier, a warp fork mounted thereon, and means cooperating with said warp fork to pull said fork and its carrier toward the breast beam upon the occurrence of warp fault, thereby to stop the loom.

12. A loom comprising a lay, a reciprocatory member mounted independently of the lay, a weft cam for reciprocating said member, a shipper device normally held in loom operating position, a knock-0E device to release the shipper device, weft fault detecting means, means cooperating therewith and with the reciprocatory member to stop the loom upon the occurrence of weft failure, a warp fork carrier slidingly mounted upon the breast beam of the loom, a warp fork pivoted upon said carrier and having a hooked free end directed toward the breast beam, and means independent of the lay and adapted to engage with said hooked free end of the warp fork upon the occurrence of warp fault to pull said warp fork and its carrier in a direction toward the knock-off device, thereby to stop the loom.

13. A loom stopping mechanism comprising in combination the following parts, cam shaft 18 having cam 17, weft hammer 15, a

weft fork carrier and weft fork, a warp fork carrier and warp fork, extensions 15 and 37 cooperating therewith respectively, a magnet and armature, means connecting said armature to said warp fork, and an electric circuit including said magnet and adapted to be closed on the occurrence of warp fault.

In testimony whereof, we have signed our names to this specification, in the presence of two subscribing witnesses.

THOMAS GOODWIN. GEORGE CHEETHAM.

WVitnesses:

NICHOLAS HATHEWAY, J12, RICHARD PACKER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of ZPatents, Washington, D. 0.

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