US641792A - Loom. - Google Patents

Description

No. 641,792. Patented Jan. 23, 1900.

J. NORTHROP & E. s. STIMPSON.

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LUOM.

(Application filed Aug. 25, 1899.) (No Model.)

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LOOM.

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Patented Jan. 23, won." J. NURTHBOP' & E. s. STIMPSON.

LOOM.

(Application filed Aug. 26, 1899.)

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ST T S JONAS NORTHROP AND EDlVARD S. STIMPSON, OF HOPEDALE, MASSAOHU-' SETTS, ASSIGNORS TO THE DRAPER COMPANY, OF SAME PLACE AND LOOM.

SPECIFICATION forming part of Letters Patent No. 641,792, dated January 23, 1900.

Application filed August 25,1899. Serial No. 728,395. (No model.)

EDWARD S. STIMPSON, both of Hopedale,

county of Worcester, State of Massachusetts,

have invented an Improvement in Looms, of

which the following description, in connection with the accompanying drawings, is a specification, like letters and numerals on the drawings representing like parts.

This invention relates more particularly to automatic filling-supplying looms wherein the supplying mechanism is operated at the proper time to effect the introduction of a fresh supply of filling-as, for instance, in the loom shown in United States Patent No. 626,187, dated May 30, 1899, the said mechanism being therein shown as operated upon exhaustion to a predetermined extent of the fillingin the shuttle. As'the fresh supply of filling is transferred the nearly-exhausted filling-carrier is ejected from the shuttle into a box or suitable receptacle, carrying with it the end of filling-thread leading from the edge of the cloth; and our present invention has for its object the production of means to. part orsever this filling so that the length of thread extending from the ejected filling-carrier will be as short as possible, the length of filling between it and the cloth being engaged by a thread-clamp or holding device and moved into position to be severed adjacent the cloth by a thread-cuttingtemple. The piece of thread thus cut in two places between the shuttle and the cloth is retained by the clamp and moved away from the shuttle-path, and before the next change of filling is effected the clamp is opened to release such piece of thread. I

We have herein shown one practical 'embodiment of our invention as applied to a loom provided with.fillingsupplying mechanism,substantially as shown in United States Patent No. 628,228, dated July 4, 1899, and to cooperate wit h athread-cuttingtem ple, which may be of the type shown in United States Patent No. 585,465, dated June 29,1897; but our invention is not restricted in its application to the exact form of loom shown nor to the particular type of thread-cutting temple herein illustrated.

Various novel features of our invention will be hereinafter described, and particularly pointed out in the claims.

Figure l is a front elevation of a sufficient portion of a loom to be understood, showing filling-supplying mechanism having one embodiment of our invention applied thereto. Fig. 2 is a right-hand side elevation of the apparatus shown in Fig. 1, with the lay-back and the thread parting and clamping means in normal position. Fig. 3 is an enlarged top or plan view of a portion of the loom, showing the thread clam p and parterin operative position just before the end of the filling between the clamp and the edge of the cloth is put into position to be engaged by the thread-cutting temple, also shown. Fig. 4 is an enlarged inner side elevation of the thread clamp and parter in normal position, the device for opening the clamp and parter being broken out. Fig. 5 is a similar view showing the clamp and parter in position to act upon the thread when the transferrer is operated to effect a change of filling, the lay being shown as on its forward beat. Fig. 6 is a sectional detail on the line 00 m, Fig. 3, of the thread-parter looking to the right. Fig. 7 is an enlarged perspectiveview of the fixed member or jaw of the thread-clamp, and Fig. 8 is a side elevation of the device which operates to open the clamp and the parter as they are moved in opposition to act upon the filling-thread.

In carrying out our invention the fillingparter is so constructed and arranged that it will only operate when the shuttle is rop erly boxed, the support upon which the parter is mounted acting as a shuttle-feeler to detect the improper boxing of the shuttle.

As shown in Figs. 1 and 2, the loom-frame A, breast-beam A, the lay A having the bottom of one of its shuttle-boxes cut away below the self-threading shuttle S, the fillingsupplying mechanism comprising connected rotatable plates suitably shaped to hold the filling-carriers b, Fig. 1, the studff, the transferrer f, mounted thereon and having the depending endf and a finger 2l,and thes-haft (1, adapted to be rocked or partially rotated byor through the action of a feeler ("not herein shown) upon exhaustion of the filling in the shuttle to a predetermined extent, are and may be all substantially as shown in United States Patent No. 628,228, already referred to, the rock-shaft d herein referred to also corresponding to the similarly-lettered part in Patent No. (526,187, and forming herein, as it does in said patent, a part of the controlling means for the filling-supplying mechanism, operative upon the exhaustion of the filling in the shuttle to a predetermined point. As in said patent, the end f of the transferrer has mounted uponit. a headed rocker-stud m, controlled by a spring 5, and having an attached arm m the arm having mounted upon it a notched dog m provided with a lateral lug m the dog adapted to be moved into position to be engaged by a hunter 0 on the lay when a change of fillingis to be effected. The loom-frame is provided with a stand A at the filling-supplying side, on which is pivoted at 5 a yoke Y, one of its upturned arms 3 directly engaging the lug m a lateral stud or projection 3/ on its other arm 1 and provided with an antifriction-roll 6 being normally engaged by a detent-finger (Z fast on the rock-shaft d and normally maintained in the position shown by a strong spring 8*, attached at its end to said finger and to the loom-frame, respectively. In the patent referred to one arm of the yoke Y is enlarged and bent rearwardly to form a shuttle-feeler, and in our present invention the corresponding arm y is also upturned and bent rearwardly to act as a shuttle-feeler; but at its extremity it is notched, as at p, and forms a support for the thread-parter, to be described, and also for the feed-clamp. A sharpened blade 19 is secured to the inner face of the arm, with its sharp edge just. above the bottom of the notch, while a movable bladep is mounted to rock on a stud 10, fixed in and extended laterally from the inner side of the arm 3/, said blade being slotted atp, for a purpose to be described, and having a depending heel p at its front end. A lugp extends laterally from the movable blade near its heel, and the said blade moves in a guide 12, secured to or forming part of the arm said guide forming a housing for a springdetent adapted when the blade is in normal open position to catch over its upper corner 15, (see Figs. 5 and 6,) the detent yielding when the blade is positively moved, as will be described, into position to cooperate with the fixed blade 19 to sever filling between them. A pin 16 is shown best in Fig. 6 as extended across the notch 1) near its bottom to prevent the filling-thread from passing too far toward the base portion of the jaws. The stud l0 and a second stud 18, rigidly mounted in the arm y and extended laterally therefrom parallel to the stud 10, serve as supports for the fixed member or jaw of the thread-clamp, said jaw being shown separately in Fig. 7 and comprising an upright web 0, a lateral extension 0, and a flat foot 0 the latter being longitudinally grooved in its upper face, as at 0 and intersecting a slot- 0 in the laterally-extended part c, said slot forming a guide for the movable member or jaw of the clamp, to be described. The stud 10 is extended through a hole in the web, (not seen in the drawings,) and the latter is maintained against the head of the stud by a spring .5 (see Fig. 3,) interposed between the web and a suitable washer to, bearing against the inner face of the movable jaw 19 of the parter. The spring thus serves the double purpose of a friction-pad for the movable blade, maintaining it open or closed, and to maintain the fixed clamp member in proper position, the stud 18 entering a notch c in the front end of the web and preventing the latter from rotating on the stud 10. The stud 18 extends through the slot 19 of the movable blade, and the rocking movement of the latter in opening and closing is thus permitted.

As shown in Figs. 3, 4, and 5, the movable member or jaw of the clamp is made as an elongated thin blade 0, fulcrumed near its outer end on the stud l8 and having an extension c which extends beneath the lateral lug p. A spring 5 (see Fig. 3) is coiled around the stud 18 and held at one end by a lug 25 on the web a and bears at its other end against a pin 30 on the member c to normally maintain the jaw a closed, as shown in Fig. 4, its serrated edge e at such time resting in the groove 0 of the fixed member or jaw. The upright slot 0 serves to guide the jaw c as it is rocked, and when the movable blade 19 of the parter is opened the lug 19 will engage the extension 0 of the movable member of the clamp and turn the latter on its fulcrum into relative open position. (Shown in Fig. The lug 19 forms a differential connection between the two movable members, for viewing Fig. 4 it will be noticed. that the movable member of the clamp will not be moved to open the clamp until after the blade 11 has been opened and moved far enough to bring the lug 13 into engagement with the extension p Conversely the jaw 0 will close upon its cooperating fixed member before the blades 19 p will operate to sever a thread between them. A pin in the lateral extension 0 crosses the slot 0 and passes through a cam-slot 35 in the jaws c to limit its movement and prevent accidental displacement.

The normal position of the parter and clamp is shown in Figs. 2 and 45, with the reduced extremityp of the lug p in position to be acted upon by the device for opening the'movable members of the clamp and partcr prior to a change of filling, said device being shown best in Figs. 3, 5, and 8. An upturned arm 70 secured to the bracket A, is bent over at its upper end, as at it}, and upon the face of said arm nearest the yoke Y is pivoted at 70 a box-like support or carrier 70 having secured to or forming a part of its side a cam-lip or switch 70 inclined on its under side toward the lay and preferably slightly beveled at its end toward the lay, as at Ir, a spring 3 (see dotted lines, Fig. 8) holding the bottom of the carrier up against a stoplug 40, the coil of the spring being supported by a pin 45, fixed in the overhanging end k of the upright arm la After the thread parter and clamp have operated, as will be described, and returned to normal position the reduced end 10 of the lug p on the blade 19 wipes over the top of the switch-cam k and depresses the carrier 70 until the end of the lug snaps past the switch-cam as the parts attain their normal position, (shown in Fig. 4,) the spring 3 returning the carrier k to such position and elevating the switch, so that when the yoke is swung toward the lay prior to the next change of filling the lug will travel along .the under face of the switch and as the latter is held from upward movement by the action of the stop 40 on the carrier 10 the switch will operate to depress the lug p as it travels along the under face of the switch to first open the parter and thereafter to permit the spring 3 to open the clamp, so that the latter will be in the position shown in Fig. 5 as the lay nears its forward position, and when the heel end 23 of the blade o is so depressed the detentp will engage and hold said blade in such position until positively moved therefrom.

We have herein shown the closing of the clamp and parter as effected by means of a hunter C suitably secured to the lay and adapted to engage the heel p of the movable member of the parter as the lay completesits forward movement. Such engagement with the heel operates to release the blade from the detent p and to permit the spring 8 to close the jaw 0 upon the thread before the movable blade of the parter cooperates with its relatively fixed fellow to sever the fillingthread between the clamp and the shut! le then in the shuttle-box, as shown in Fig. 3.

The rock-shaft d may be rocked or partly turned in any suitable manner-as, for instance, by or through the action of a fillingfeelersuch as shown in United States Patent No. 626,1b7, wherein the shaft will be rocked upon exhaustion of the filling in the shuttle to a predetermined extent. When the shaft d is rocked in the direction of the arrow 50, Fig. 2, the detent-finger d will be raised, permitting the spring 8 to turn the dog m in to position to be engaged by the hunter C the lug m at the same time acting through the arm y to swing the yoke Y upon its fulcrum 5, and if the shuttle is properly boxed the upper end of the arm y will be moved into the position shown in Fig. 5 above and adjacent the raceway of the lay when the latter completes itsforward beat. As will be manifest, the movement of the yoke to bring the threadclamp and parter bodily into position to act upon the filling-thread takes place before the lay completes its forward stroke, the com pletion of such stroke acting after the thread has entered between the members of the clamp and the parter to first clamp the thread and then to part it between the clamp and the shuttle and adjacent the latter, so that a very short end of filling will be drawn away by the ejected filling-carrier. The clamping of the thread before the action of the parter prevents twisting or coiling of the thread out of range of the clamp, as would frequently occur were the parter to operate first. The filling having been severed, its loose end is now held between the jaws of the clamp, and the various parts return to their normal positions, the rock-shaf t d being released to permit the spring S to depress the detent-finger ti to thus effect return of the yoke to normal position, and as the clamp still retains its grasp upon the filling end the latter is drawn forward into the path of the cutting device of a thread-cutting temple, (shown only in Figs. 2 and 3,) the latter, as herein illustrated, being the same as shown in United States Patout No. 585,465, the movable member 0 of the temple-cutter cooperating with a fixed member or blade at the movable member being hooked; as shown in Fig. 2, to engage and bring the thread against the fixed blade at the next forward beat of the lay when the temple is operated, the hooked end of the movable cutter drawing the filling against the blade (1 and severing it close to the edge of the selvage of the cloth. The temple asa whole is indicated in Fig. 3 at T. The short piece of thread thus severed is retained by the clamp until the latter is again moved bodily toward the lay prior to the next change of filling, such bodily movement of the clamp resulting, as has been described, in the separation of the jaws, and the piece of thread will be released.

If the shuttle is improperly boxed, when the yoke Y is moved toward the lay the upper end of the arm y will engage the shuttle, operating precisely as does the shuttle-feeler y in United States Patent No. 628,228. It will prevent the movement of the dog m into position to be engaged by the bunter C and the transfer of filling will be prevented.

The movement of the yoke toward the lay is regulated byasuitable set-screw 60, mounted in an ear A of the bracket A a look-nut holding the screw in adjusted position, the yoke engaging and being stopped by the screw when its proper operative position is attained, as shown in Fig. 5.

The arm y of the yoke is herein shown as secured to the other arm y by a bolt 80, extended through an ear 11 on the arm y and through a slot ,85 in the elbow of the arm y, so that the latter can be by this construction adjusted relatively to the arm which forms the support for the thread parter and clamp.

Our invention is not restricted to the precise construction and arrangement of parts herein shown and described nor to any particular form of controlling means for the filling-supplying mechanism, such controlling means, as herein illustrated, including the rock -shaft d and the detent-finger d.

ing, and a device to open the clamp as it is moved into position to act upon the thread.

2. In a loom provided with filling-supplying mechanism, controlling means therefor, a shuttle adapted to carry a supply of filling, a thread-parter and a thread clamp, bodily movable by or through the operation of the controlling means into position to act upon the thread of the filling-carrier to be ejected, means carried by the lay to close the clamp and actuate the thread-parter successively upon change of filling, and a relatively-fixed device to open the clamp as it is moved into position to act upon the thread.

3. In a loom provided with filling-supplying mechanism, controlling means therefor, a shuttle adapted to carry a supply of filling, a thread-parter and a thread-clamp, each having a movable member, a differential connection between said members to move them successively, said thread parter and clamp being bodily movable into position to act upon the thread of the filling-carrier to be ejected, means to engage the movable member of the parter upon a change of filling, and through said difierential connection close the clamp upon the thread and thereafter actuate the parter, and a device to put the clamp and parter into operative condition before they are moved into position to act upon the thread.

4. In a loom provided with filling-supplying mechanism, controlling means therefor, a shuttle adapted to carry a supply of filling, a thread-parter and a thread-clamp, each having a movable member, a spring to normally close such member of the clamp, a differential connection between and to move said members successively, said connection acting against the spring to open the clamp, means operating through said connection upon a change of filling to permit closure of the clamp and thereafter to positively operate the parter to part the thread, and a device to open the said movable members of the clamp and parter as the latter are moved into position to act upon the thread.

5. In a loom provided with filling-supplying mechanism, a shuttle adapted to carry a supply of filling, a thread-parter and a th readcla-mp, each including a movable member, means operative upon a change of filling to close the clamp upon the thread of the fillingcarrier to be ejected and to thereafter actuate the parter to part the thread while clamped, and an independent device to open said movable members prior to the next change of filling.

6. In a loom provided with filling-supplying mechanism a shuttle adapted to carry a supply of filling, a thread-parter comprising a fixed member and a relatively-movable member having a heel, a thread-clamp comprising a fixed member and a relatively-movable member, a spring to close the latter, a lug mounted on the movable member of the parter, to engage and open the movable clamp member against the action of its spring, a hunter on the lay, to engage the heel of the movable parting member upon a change of filling and move it to first permit closure of the clamp and thereafter to part the clamped thread, and an independent device to open said parter and clamp prior to the next change of filling.

7. In a loom provided with filling-supplying mechanism, controlling means therefor, a shuttle adapted to carry a supply of filling, a thread-parter and a thread'clamp, bodily movable by or through the operation of the controlling means into position to act upon the thread of the filling-carrier to be ejected, the clamp including a movable member, a spring to close it, the th read-parter including a member having a lug to engage and open the movable clamp member against its spring, a relatively-fixed device to engage said lug when the clamp and thread-parter are bodily moved into operative position, to open the clamp and the thread-parter, means to close the clamp upon the thread and to thereafter operate the parter upon a change of filling, and a detent to maintain said clamp and the parter closed as they are bodily returned to normal position.

8. In a loom provided with filling-supplying mechanism, controlling means therefor, a thread-cutting temple located at the same side of the loom with said mechanism, ashuttle adapted to carry a supply of filling, a thread-clamp and a thread-parter, a support therefor actuated upon change of filling by the controlling means to bodily move the clamp and parter into position to act upon the thread of the filling-carrier to be ejected, and means carried by the lay to permit closure of the clamp and thereafter to operate the parter, when they are in operative position, the return of the clamp into normal position bringing the filling end thereby into position to be severed by the temple-cutter.

9. In a loom provided with filling-supplying mechanism, a temple located at the same side of the loom and having a thread-cutter, a shuttle adapted to carry a supply of filling, a threadparter, movable prior to change of filling into position to part the thread adjacent the filling-carrier to be ejected, a threadclamp movable into position to engage and hold the thread between the temple and the parter, prior to the action of the latter, means to move the parter and the clamp into position to operate, the return of the clamp to normal position drawing the parted thread held thereby into position to be severed by the temple-cutter, and means to actuate the parter and the clamp when in operative position, to respectively part and clamp the filling-thread.

10. In a loom provided with filliug-supplying mechanism, a temple located at the same side of the loom and having a thread-cutter, a shuttle adapted to carry a supply of filling, a swinging support, means mounted thereon side by side to clamp and to part the thread of the filling-carrier to be ejected upon a change of filling, said filling-supplying mechanism at such time efiecting the movement of the support into operative position, the lay, a hunter thereon to effect the successive operation of the clamp and the parter as the lay beats up, and an independent device to open the clamp and the parter as they are moving bodily into operative position, the return of said support to normal position causing the clamp to draw the filling end into position to be severed by the temple-cutter.

11. In a loomprovided with filling-supplying mechanism, a thread -cutting temple, a swinging yoke governed by said mechanism, normally-closed thread-clamping jaws and parting-blades mounted upon the yoke,a fixed device to open the jaws and blades as they are bodily moved by the yoke into operative position, the actuation of the filling-supplying mechanism effecting such movement of the yoke, and means mounted on the lay to first close the jaws upon the thread to thereafter close the blades to sever it, the return of the yoke to normal position acting through the holding-jaws to bring the filling end into position to be severed by the temple-cutter.

12. In a loom provided with filling-supplying mechanism, controlling means therefor operative upon exhaustion of the filling in the shuttle to a predetermined extent, a shuttle adapted to carry a supply of filling, a shuttlefeeler, means, including a movable blade, mounted thereon to part the thread of the filling-carrier to be ejected upon change/of filling, the lay, a bunter thereon to engage said blade and close it as the lay beats up, a trio tion device to act upon and retain the blade closed, and an independent device to engage the blade and positively open it prior to the next change of filling.

13. In a loom provided with filling-supplying mechanism, controlling means therefor, a shuttle adapted to carry a supply of filling, a support governed as to its position by said controlling means and movable into operati ve position upon a change of filling, a threadclamp mounted on said support and comprising a fixed jaw having a guideway, a pivoted jaw to cooperate therewith and movable in the guideway, and a spring to close the jaw; a thread-parter, including a movable blade, a differential connection between said blade and the movable jaw, to control the operation of the latter, a device to act upon said connection and open the clampand parter as they are bodily moved by the support into operative position, and independent means to act upon the blade and through said connection permit first the closure of the clamp upon the thread and thereafter the closing of the blade to part the thread of the' filling to be ejected.

14. In a loom, the lay, filling-supplying mechanism, a shuttlefeeler operatively connected therewith,athread-clamp and athreadparter mounted on the shuttle-feeler, means to effect the operation of said mechanism upon exhaustion of the filling in the shuttle to a predetermined extent, a device to place said clamp and parter in operative condition as'the shuttle-feeler moves toward the lay, to carry the clamp and parter into position to clamp and part the thread of the filling-carrier to be ejected when the shuttle is properly boxed, a hunter on the lay, to close the clamp on the thread and to thereafter actuate the parter as the change of fillingis effected, and a thread-cutting temple located at the fillingchangingside of the loom, the return of the shuttle-feeler to normal position operating through the clamp to bring the thread into position to be cut at the temple.

15. In a loom provided with filling-supplyingmechanism, controlling means to effect the operation thereof upon exhaustion of the filling in the shuttle to a predetermined extent, a swinging arm having mounted upon it fixed and movable thread-parting blades and clamping-jaws, a spring to close the movable jaw, a lug carried by the movable blade to engage and open said jaw against its spring, a switch-cam to depress the lug and open the clamp and parter as the swinging arm moves them into operative position, and independent means to close the clamp and thereafter to operate the parter to sever the thread adjacent the filling-carrier to be ejected.

16. In a loom, an arm having a thread-receiving notch in its end, fixed and movable blades thereon adjacent the notch, a fixed clamping-jaw and a cooperating pivoted jaw, both mounted on the arm to clamp the thread of a filling-carrier to be ejected, a closingspring for the pivoted jaw, means to move said arm to bring the blades and jaws into operative position upon exhaustion of the tilling to a predetermined extent, a differential connection between the movable blade and jaw, the lay, a hunter thereon to operate through said connection and close the clamping-jaws upon the thread, and thereafter to close the blades and severit adjacent the filling-carrier to be ejected, and an independent device to openthe blades and jaws prior to the next change of filling.

17. In a loom provided with filling-supplying mechanism, a shnttle-feeler, fixed and movable parting-blades mounted thereupon,

a friction device to act upon the movable blade, said blade having a depending heel, a yielding detentto hold the blade open; a thread-clamp mounted on the shnttle-feeler at the side of the blades, said clamp including a pivoted jaw having an extension at one end, a spring to close the jaw; a transverse lug on the movable blade, to engage the jaw extension and rock the jaw against its spring, a device to depress said lug to open the mov; able blade and the said jaw, means to move the shuttle feeler into operative position prior to a change of filling, the lay, and a bu nter thereon to engage the heel of and close It is hereby certified that in Letters Patent N 0. 641,7 92, granted January 23, 19C upon the application of Jonas Northrop and Edward S. Stimpson of Hopedale', Mass chusetts, for an improvement in Looms, an error appears in the printed specificath requiring correction, as follows: In line 123, page 4, after the Word end the W0:

held should be inserted; and that the said Letters Patent should be read With th correction therein that the same may conform to the record of the case in the Pate] Oflice.

Signed, countersigned, and sealed this 6th day of February, A. D., 1900.

[SEAL] THOS. RYAN,

First Assistant Secretary of the Interior. Oountersigned O. H. DUELL,

Commissioner of Patents.

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