US692316A - Warp stop-motion for looms. - Google Patents

Description

Patented Feb. 4, I902.

Nu. 692,3l6.

J. E. LEMYRE.

WARP STOP MOTION FOR LOOMS.

(Application filed Feb. 26. 1901. (No Model.) 3 SheetsSheet I.

WITNESSES.

No. 692,3l6. Patented Feb. 4, I902. J. E. LEMYRE.

WARP STOP MOTION FOR LOOMS.

(Application filed Feb. 26. 1901.) (No Model.) 3 Sheets-$heet 2.

WITN E5555. INVEQTD ha. 74 QW7M -%M J MvM No. 692,3l6. Patented Feb. 4, I902.

J. E. LEMYRE. WARP STOP MOTION FOR LOOMS.

(Application filed Feb. 26. 1901.) (No Model.) 3 Sheefs$h88f 3.

IWEIJTU Wwnhzsss's.

ZZZ/M UNITE STATES PATENT OFFICE.

JOSEPH E. LEMYRE, OF MANCHESTER, NEW HAMPSHIRE, ASSIGNOR, BY

MESNE ASSIGNMENTS, TO TEXTILE MACHINERY IMPROVEMENT COM- PANY, A CORPORATION OF NEW JERSEY.

WARP STOP-MOTION FOR LOOMS.

SPECIFICATION iorming part of Letters Patent No. 692,316, dated February 4:, 1902.

Application filed February 26, 1901. Serial No.48,92l. (No model.)

T0 aZZ whom it may concern:

Be it known that I, JOSEPH E. LEMYRE, a citizen of the United States, and a resident of Manchester, in the county of Hillsboro and State of New Hampshire, have invented a new and useful Improvement in \Varp Stop- Motions for Looms, of which the followingis a specification.

My invention relates to warp stop-motions for looms, and belongs to that class of warp stop motions wherein the warp-detectors, which cooperate with an intermittently-vibrated feeler to effect the stoppage of the loom whenever a warp-thread breaks or becomes unduly slackened, are carried by the lay in its vibratory excursions toward and from the fell of the woven fabric.

Myinvention provides a stop-motion system of warp-thread detectors and a feeler operating in conjunction therewith which is constructed in such manner that the stop-motion system can be readily attached to any loom without involving special construction of the reed, lay-frame, or any of its parts and which can be inspected, cleaned,or repaired with the greatest facility without more loss of time than would be required to repair a broken thread.

Any one of the detectors of my warp stop mechanism can be removed without disturbing the rest of the detectors or theirsupporting mechanism.

In the drawings hereto annexcd,which illustrate an embodiment of my invention, Figure 1 is a vertical section showing the arrangement of my stop-motion and its relationship to the parts of an ordinary loom. Fig. 2 is a perspective view partly broken away to disclose the mechanism of the lay and shed of the loom and my stop-motion. The upper right-hand corner of this drawing shows the right-hand side of the detectors and feeler mechanism and their mode of connection to the lay. All parts of this figure are inthe same perspective arrangement. Fig. 3 is a cross-section of the lay-cap and part of the reed with portions of my stop-motion, showing the normal position of the parts during the formation of the shed. Fig. 4 is a crosssection similar to Fig. 3, but showing the operation of a detector when a warp-thread breaks. Fig. 5 is a top plan view, part in section and partially broken away, of one end of the detector-frame and adjacent parts. Fig. 6 is an end View of a portion of the reed and the detector-frame. Fig. 7 is a perspective view of one of the warp-thread detectors.

In Fig. 1 there is shown a portion of the loom-frame A, whereon A is a transverse brace extending between the side frames, and B is the breast-beam. The lay-s word S is partially shown and carries a lay-beam L, upon which is mounted the reed R. The upper and lower reed-bars R R are of the usual construction.

O O are the heddles.

W is the woven fabric, and w the upper tier of threads shown in posit-ion for the formation of the shed.

H is the shipper-handle, which when the loom is in operation is held by a stop h, which may be, as usual, a notch in the slot of a plate secured to one of the front corners of the loom-frame. As is usual, also, the shipperhandle H is connected with a spring, (not shown,) which strains the shipper-handle out toward the position of power release and which is normally held out of action by the stop h, the shipper-handle H being itself laterally movable or flexible, so that it can he slipped laterally 0d the stop it when the shipper-spring acts and throws the driving power off the loom.

The warp stop-motion is shown in cross-section in Fig. 1, and consists of a series of detectors, of, which one is shown in Fig. 1 at at. These detectors are thin blades or keys, made, preferably, of steel, and rest by gravity contact upon the detector-carrier 01 A guard or shield (1 extends across the top of the series of detectors and prevents their dislodgment in an upward direction. The drop-guard Z, which may be secured to the lay-cap L, carries the ledge Z in such position that it'prevents any one of the detectors d from falling too far. Thus the detector-carrier (P, the

guard (1 and the drop-guard ledge Z constitute a housing for the detectors d, within which the detectors have sufficient space and opportunity for all their necessary movemen ts. The detector-carrier is provided with a pivot-ledge 01 which is adapted to fit loosely within the notch (Z of the detectors d, so that the detectors are pivoted in gravity contact upon the pivot-ledge d, from which in case of necessity any one or all of the detectors can readily be removed after the guard d is taken off for the purpose. Each one of the detectors, of which one is shown in perspective in Fig. 7, is provided with a point d which is adapted to enter between the dents of the reed, and also with a finger d, which periodically comes in contact with the warpthreads as the shed is formed and with a shoulder d which is designed to make contact with the feeler, presently to be described,whenever by reason of the breakage or undue displacement of a warp-thread the detector fails to be lifted when the shed is formed. The projecting point d is of sufficient length to allow for any lateral local vibratory movement of the reed due to the shocks of its impact, so that there may be no danger of the point 01 being slipped from between its neighboring reeddents. The finger 01 is preferably broader across its warp-engaging face than the reedspaceis wide, so that the warpsin a reedspace will not fail to engage the lower surface of the finger d". The arrangement here shown, wherein the thickened portions of the detectors and the detector-pivots are located on the same side of the reed and in front of the reed, renders the detectors immune from damage or displacement, due to local agitation of the reed, as when it beats up the Weft and strikes the fell. Upon the fiat upper surface or shelf of the detector-carrier d lies the feeler F, which is a flat bar extending from end to end of the series of detectors and which is grooved at f, so as to form a projecting ridge adapted under certain conditions to make contact with the shoulder d on the detector 01.

The feeler F is actuated by the vibrations of the lay in the following manner: At one end of the feeler F (see Fig. 2) there is secured the rearwardly-projecting arm f, the outer end of which is jointed to the arm f by a pin-and-slot connection. The arm f is secured to or integral with a sleeve ft which is made fast to the carrier-shaft-f, as by a set-screw. The arm f also seen red to orintegral with the sleeve f hangs below the shaft. f in such position that at each backwardswing of the lay it comes in contact with the outrigger a, which is adjustably secured to the cross-brace A by bolts a and slot a Any stationary part of the loom-frame or piece attached thereto which will perform the function of the outrigger will do as well. The shaftf is hung on the lay-beam L by straps f (See Fig. 1.) At another point on the shaftf" the sleeve f is secured, as by a setscrew, and from this sleeve there projects the arm f which bears the same relationship to the rearwardly projecting arm f as the swingsto the front to beat in the weft.

arm f bears to the arm f. The lifter-arm f reaches forward from the sleeve f and is secured in contact with the shipper-finger m by the loop in the spring m, which embraces both the lifter-army and the finger m. The finger m is pivoted for convenience on the protector-rodp. It may, however, be pivoted on any part especially contrived or adapted for the purpose. The spring m is secured at its lower end to the lay and constantly strains the finger m and arm f downward and by connection through the chain of parts just described normally holds the feeler F in the dotted-line position marked F in Fig. 3; but when the backward swing of the lay brings the arm f in contact with the outrigger a the spring m yields and the feeler slides to the full-line position marked F in Fig. 3. The parts are so located and proportioned that this sliding movement of the feeler F across the lower side of the detector at occurs just at the moment when in the operation of the loom the shed w is formed. When all the warp-threads are in good order and unbroken, the formation of the shed brings the warp-threads into contact with the depending fingers d of the detectors d and lifts the detectors. At this moment the feeler F is moved, as described, to the position shown in full lines in Fig. 3, and as the lay swings forward the feeler slides to the dotted-line position F and is free to do so for the reason that the detectors are lifted out of range; but if a warp-thread breaks or is unduly slackened the formation of the shed will fail to act upon the detector which is inserted between the reed-dents over the broken or slackened warp-thread,and thus when the shed is formed this detector will not rise with the others, but will remain in the position shown in Fig. 4, with the point d resting on the ledge Z of the drop-guard 1. Then when the feeler F moves under the detectors it passes to the position shown in Fig. 4,when the fallen detector auto- -matically inserts its shoulder 61 into the groovefon the feeler F and effectually prevents the feeler from moving back to the dotted-line position shown in Fig. 3, and thus through the connections ff f f Fig. 2, the shipper-finger m is held at its mostelevated position and there remains while the lay On the lower side of the breast-beam, Fig. 1, there is secured the shipper-lever n, which carries at the end opposite the shipper-finger m a block n, provided with a notch 01 This shipper-lever extends across the front of the loom under the breast-beam and is pivoted at about the middle of the breast-beam at W, the farther end n standing immediately in front of the shipper-handle H. In the normal operation of the loom and stop-motion the spring m draws the finger m so far down that at the forward swing of the lay it passes clear of the block 91; but when, as shown in Fig. 4, one of the detectors d has arrested the feeler the finger m is held elevated, and

IIO

when the lay swings forward the finger 'm strikes the notch n and moves the shipperlever on its pivot a the end or bearing upon the side of the shipper-handle H, slips it off the stop h, and permits the shipper-spring to throw the driving-belt from the fast to the loose pulley, thus stopping the loom.

It will be seen from the foregoing description that a stop-motion such as the one described may readily be attached to any loom of ordinary construction withoutinvolving reconstruction or alteration of anyof its parts.

The manner in which I attach the detectorframe of the stop-motion and its immediatelyassociated parts to the reed is shown in Figs. 5 and 6. At the two ends of the reed I insert a plate at into the slots provided for the dents in the upper and lower reed-bars R R The plate d is duplicated at the other end of the reed, which is not shown in Fig. 5. Each of these plates is vertically slotted for bolts d, which pass through the slots and into the block d", as shown in dotted lines in Figs. 5 and 6. The vertical slots in the plate 61 permit a sufficient range of vertical adjustment of the detector carrier d The bolts which secure the drop-guard Z to the laycap may also be inserted in slots, so as to afford an opportunity to adjust the drop-guard. The block 61* serves as a base for attaching the detector-carrier d and the guard d A block g, Fig. 5, is preferably secured to the detector-carrier at each end of the series of detectors, so as to secure the end detectors from lateral displacement. If necessary, the detectors may be reduced in thickness at the point d back, say, as far as the line d. (Shown in Fig. 7.)

I claim- 1. In a warp stop-motion forlooms, the combination with the reed of a system of movable warp-thread detectors inserted between the reed-dents, and carried by a detector-frame whereon the detectors rest in gravity contact, the detector-frame, a feeler automatically vibrated across the detectors, the detectors adapted to be moved by the warp-threads in the formation of the shed, provided the warps are in good order, the feeler adapted to make contact with any detector which is not lifted by its warp,and shipper mechanism connected with the feeler whereby when the movement of the feeler is affected by a detector the loom is stopped. V

2. In a warp stop-motion for looms, the combination with the reed of a system of movable warp-thread detectors inserted between the reed-dents, and carried by a detector-frame whereon the detectors rest in gravity contact, the detector-frame hung in front of the reed, a feeler automatically vibrated across the detectors, the detectors adapted to be moved by the warp-threads in the formation of the shed, provided the warps are in good order, the feeler adapted to make contact with any detector which is not lifted by its warp, and shipper mechanism connected with the feeler whereby when the movement of the feeler is affected by a detector the loom is stopped.

3. In a warp stop-motion forlooms, the combination with the reed of a system of movable warp-thread detectors inserted between the dents of the reed and carried by a detectorframe external to the structure of the reed, the detector-frame, a pivot-ledge on the detector-frame, whereon the detectors rest in gravity contact, a feeler automatically vibrated across the detectors, which are adapted to be moved by the warp-threads in the formation of the shed, provided the threads are in good order, the feeler adapted to make contact with any detector which is not lifted by its warp thread and shipper mechanism connected with the feeler whereby when the movement of the feeler is afiected by a detector the *loom is stopped. V

4. In a warp stop-motion forlooms, the combination with the reed of a system of movable warp-thread detectors inserted between the dents of the reed and carried by a detectorframe,the detector-frame,consisting of a shelf hung in front of the reed provided with a pivotledge whereon the detectors rest in gravity contact and a feeler-platform, a feeler automatically vibrated upon the feeler-platform across and under the detectors, which are adapted to be moved by the warp-threads in the formation of the shed, provided the threads are in good order, the feeler adapted to make contact with any detector which is not lifted by its warp-thread, and shipper mechanism connected with the feeler whereby when the movement of the feeler is affected by a detector the loom is stopped.

5. In awarp stop-motion for looms, the combination with the reed and reed-frame of a system of movable warp-thread detectors inserted between the dents of the reed, and carried by a detector-frame, the detector-frame, the said detectors consisting of keys, tapered at their points of insertion between the reeddents, provided with gravity-contact pivots at their outer ends and with feeler-engaging shoulders on their lower edges, the detectorframe being hung on the reed-frame in front of tho dents and provided with a pivot-ledge whereon the pivot ends of the detectors rest in gravity contact, a feeler automatically vi-- brated across the detectors, which are adapted to be moved by the warp-threads in the formation of the shed, provided the threads are in good order, the feeler adapted to make contact with any detector which is not lifted by its warp-thread, and shipper mechanism con nected with the feeler whereby when the movement of the feeler is affected by a do tector the loom is stopped.

6. In a warp stop-motion for looms, the combination with the reed and reed-frame of a system of movable warp-thread detectors inserted between the dents of the reed and carried by a detector-frame, the detector-frame, consisting of a shelf hung on the front of the reed-frame and provided with a pivot-ledge wherein the detectors rest in gravity contact, a guard secured over the detectors whereby their movement is limited, and a feeler-platform, a feeler automatically vibrated upon the feeler-platform across and under the detectors, which are adapted to be moved-by the warp-threads in the formation of the shed, provided the threads are in good order, the feeler adapted to make contact with any detector which is not lifted by its warp-thread, and shipper mechanism connected with the feeler whereby when the movement of the feeler is afiected by a detector the loom is stopped.

7. In a warp stop-motion forlooms, the combination with the reed of a system of movable warp-thread detectors inserted between the dents of the reed and carried by a verticallyadjustable detector-frame external to the structure of thereed and attached thereto, the detector-frame, afeeler automatically vibrated across the detectors, which are adapted to be moved by the warps in the formation of the shed, provided the threads are in good order, the feeler adapted to make contact with any detector which is not lifted by its warp-thread, and shipper mechanism connected with the feeler whereby. when the movement of the feeler is afiected by a detector the loom is stopped.

8. In a warp stop-motion for looms, the combination with the reed and reed-frame of a system of movable warp-thread detectors inserted between the dents of the reed and carried bya vertically-adjustable detector-frame hung on the reed-frame in front of the dents, the detector-frame, a feeler, automatically vibrated across the detectors, which are adapted to be moved by the warp-threads in the formation of-the shed, provided the threads are in good order, the feeler adapted to make contact with any detector which is not lifted by its warp-thread, and shipper mechanism connected with the feeler whereby when the movement of the feeler is affected by a detector the loom is stopped.

. 9. In a warp stop-motion for looms, the combination with the reed and reed-frame of a system of movable warp-thread detectors inserted between the dents of the reed and car- .ried by a vertically-adj ustable detector-frame external to the structure of the reed-frame and attached thereto, the detector-frame, a pivot-ledge on the detector-frame, whereon the detectors rest in gravity contact, a feeler automatically vibrated across the detectors, which are adapted to be moved by the warpthreads in the formation of the shed, provided the threads are in good order, the feeler adapted to make contact with any detector which is not lifted by its warp-thread, the shipper mechanism connected with the feeler whereby when the movement of the feeler is aifected by a detector the loom is stopped.

10. In a warp stop-motion for looms, the combination with a reed and reed-frameof a system of movable warp-thread detectors inserted between the dents of the reed and carried by a Vertically-ad j ustable detector-frame, the detector-frame, consisting of a shelf hung on the front of the reed-frame and provided with a pivot-ledge whereon the detectors rest in gravity contact and a feeler-platform, a feeler automatically vibrated upon the feelerplatform across and under the detectors which are adapted to be moved by the warp-threads in the formation of the shed, provided the threads are in good order, the feeler adapted to make contact with any detector which is not lifted by its warp-thread, and shipper mechanism connected with the feeler whereby when the movement of the feeler is afiected by a detector the loom is stopped.

11. In a warp stop-motion for looms the combination with the reed and reed-frame of a system of movable warp-thread detectors inserted between the dents of the reed, and carried by a vertically-adjustable detectorframe, the detector-frame, the said detectors consisting of keys tapered at their points of insertion between the reed-dents, provided with a gravity-contact pivot at their outer ends and with feeler-engaging shoulders on their lower edges, the detector-frame being hung on the reed-frame in front of the dents, and provided with a pivot-ledge whereon the pivot ends of the detectors rest in gravity contact, a feeler automatically vibrated across the detectors, which are adapted to be moved by the warp-threads in the formation of the shed, provided the threads are in good'order, the feeler adapted to make contact with any detector which is notlifted by its warp-thread and shipper mechanism connected with the feeler whereby when the movement of the feeler is affected by a detector the loom is stopped.

12. In a warp stop-motion for looms, the combination with the reed of a system of movable'warp-thread detectors inserted between the dents of the reed and carried bya detector-frame, the detector-frame, external to the structure of the reed-frame and attached thereto, a feeler automatically vibrated across the detectors, which are adapted to be moved by the warp-threads in the formation of the shed, provided the threads are in good order, the feeler adapted to make contact with any detector which is not lifted by its warp-thread, and shipper mechanism connected with the feeler whereby when the movement of the feeler is affected by a detector the loom is stopped and a drop-guard normally out of contact with the detectors and adapted to limit the fall of a detector when its warpthread breaks.

1.3. In a warp stop-motion for looms, the combination with the reed and reed-frame, of a system of movable warp-thread detectors inserted between the dents of the reed and carried by a detector-frame in front of the dents, the detectorframe, a feeler, automatically vibrated across the detectors,which are adapted to be moved by the warp-threads in the IIO formation of the shed, provided the threads are in good order, the feeler adapted to make contact with any detector which is not lifted by its warp-thread, and shipper mechanism connected with the feeler whereby when the movement of the feeler is affected by a detector the loom is stopped and a drop-guard normally out of contact with the detectors, and adapted to limit the fall of a detector when its warp-thread breaks.

14:. In a warp stop-motion for looms, the combination with the reed and reed-frame of a system of movable warp-thread detectors inserted between the dents of the reed and carried bya detector-frame external to the structure of the reed-frame and attached thereto, the detector-frame, a pivot-ledge on the detector-frame, whereby the detectors rest in gravity contact, a feeler automatically vibrated across the detectors,which are adapted to be moved by the warp-threads in the formation of the shed, provided the threads are in good order, the feeler adapted to make contact with any detector which is not lifted by its warp-thread, and shipper mechanism c0n neeted with the feeler whereby when the movement of the feeler is afiected by a detector the loom is stopped and a drop-guard normally out of contact with the detector, and adapted to limit the fall of a detector when its warp-thread breaks.

15. In a warp stop-motion for looms, the combination with the reed and reed-frame of a system of movable warp-thread detectors inserted between the dents of the reed and carried by a detector-frame, the detector-frame, consisting of a shelf hung on the front of the reed-frame and provided with a pivot-ledge whereon the detectors rest in gravity contact and a feelerplatform, a feeler automatically vibrated upon the feeler-platform across and under the detectors, which are adapted to be moved by the warp-threads in the formation of the shed, provided the threads are in good order,the feeler adapted to make contact with any detector which is not lifted by its warpthread, and shipper mechanism connected with the feeler whereby when the movement of the feeler is affected by a detector the loom is stopped and a drop-guard normally out of contact with the detectors, and adapted to limit the fall of a detector when its warpthread breaks.

16. In a warp stop-motion for looms, the combination with the reed and reed-frame of a system of movable warp-thread detectors inserted between the dents of the reed, and carried by a detector-frame, the detector-frame, the said detectors consisting of keys, tapered at their points of insertion between the reeddents, provided with a gravity-contact pivot at their outer ends and with feeler-engaging notches on their edges, the detector-frame being hung on the reed-frame in front of the dents and provided with a pivot-ledge where on the pivot ends of the detectors rest in gravity contact, a feeler automatically vibrated across the detectors, which are adapted to be moved by the warp-threads in the formation of the shed, provided the threads are in good order, the feeler adapted to make contact with any detector which is not lifted by its warpthread, and shipper mechanism connected with the feeler whereby when the movement of the feeler is affected by a detector the loom is stopped and a drop-guard normally out of contact with the detector and adapted to limit the fall of a detector when its warp-thread breaks.

17. In a warp stop-motion for looms, the combination with the reed and reed-frame of asystem of movable warp-thread detectors inserted between the dents of the reed and carried by a detector-frame, the detector-frame, consisting of a shelf hung on the front of the reed-frame and provided with a pivot-ledge whereon the detectors rest in gravity contact, a guard secured over the detectors whereby their movement is limited, and a feeler-platform, a feeler automatically vibrated upon the feeler-platform across and under the detectors, which are adapted to be moved by the warp-threadsin the formation of the shed, provided the threads are in good order, the feeler adapted to make contact with any detector which is not lifted by its warp-thread, and shipper mechanism connected with the feeler whereby when the movement of the feeler is affected by a detector the loom is stopped and a drop-guard normally out of contact with the detectors and adapted to limit the fall of a detector when its warp-thread breaks.

18. In a warp stop-motion for looms, the combination with the reed and reed-frame of a system of warp-thread detectors inserted between the dents of the reed and carried by a detecto r-frame, the detector-frame, fastening-plates inserted in the ends of the reedframe, the detector-frame secured to the fastening-plates, a feeler automatically vibrated across the detectors, which are adapted to be moved by the warp-threads in the formation of the shed, provided the threads are in good order, the feeler adapted to make contact with any detector which is not lifted by its warp-thread, and shipper mechanism connected with the feeler whereby when the movement of the feeler is aifected by a detector the loom is stopped.

19. In a warp stop-motion for looms, the combination of a reed, a system of movable warp-thread detectors carried by a detectorframe external to and moving with the reed, the detector-frame, a feeler, automatically vibrated across the detectors each detector provided with a reed-space-entering end and a pivot-point, and a warp-engaging finger be tween the reed end and the pivot, the said detectors adapted to be moved by the warpthreads in the formation of the shed provided the warps are in good order, the feeler adapted to make contact with a detector which is not lifted by a shedding warp, and shipper mechanism connected with the feeler whereby when the movement of the feeler is affected by a detector the loom is stopped.

20. In a warp stop-motion for looms, the combination with the reed of a system of movable warp-thread detectors carried by a detector-frame hung on the reed-framein front of the dents, the detector-frame, a feeler automatically vibrated across the detectors, which are adapted to be moved by the warp-threads in the formation of the shed, provided the threads are in good order, the feeler adapted to make contact with any detector which is not lifted by its warp-thread, and shipper mechanism connected with the feeler whereby when the movement of the feeler is affected by a detector the loom is stopped.

21. In a warp stop-motion for looms, the combination with the reed, of a system of movable warp-thread detectors carried by a detector-frame external to the structure of the reed, the detector-frame, a pivot-ledge on the detector-frame, whereon the detectors rest in gravity contact, a feeler automatically vibrated across the detectors, which are adapted to be moved by the warp-threads in the formation of the shed, provided the threads are in good order, the feeler adapted to make con tact with any detector which is not lifted by its warp-thread and shipper mechanism connected with the feeler whereby when the movement of the feeler is affected by a detector the loom is stopped.

22. In a warp stop-motion for looms, the combination with a reed of a system of movable warp-thread detectors carried by a detector-frame, the detector-frame, consisting of a shelf hung in front of the reed provided with a pivot-ledge whereon the detectors rest in gravity contact and a feelerplatform, a feeler automatically vibrated upon the feelerplatform across and under the detectors, which are adapted to be moved by the warpthreads in theformation of the shed, provided the threads are in good order, the feeler adapted to make contact with any detector which is not lifted by its warp-thread, and shipper mechanism connected with the, feeler whereby when the movement of the feeler isaf- .fected by adetector the loom is stopped.

23. In a warp stop-motion for looms, the combinationwith the reed, of a system of movable warp-thread detectors carried by a verticallyadjustable detector frame hung on the reed-frame in front of the dents, the detector-frame, a feeler, automatically vibrated across the detectors, which are adapted to be moved by the warp-threads in the formation of the shed, provided the threads are in good order, the feeler adapted to make contact with any detector which is not lifted by its warp-thread, and shipper mechanism connected with the feeler whereby when the movement of the feeler is afiected by a detector the loom is stopped.

24. In a warp stop-motion for looms, the

combination of a reed, a system of movable warp-thread detectors carried by a detectorframe external to and moving with the reed, the detector-frame, hung in front of the reed, a feeler, automatically vibrated across the detectors, each detector provided with a reedspace-entering end and a pivot-point, and warp-engaging fingers between the reed end and the pivot, the said detectors adapted to be moved by the warp-threads in the formation of the shed provided the warps are in good order, the feeler adapted to make contact with a detector which is not lifted by a shedding warp, and shipper mechanism connected with the feeler whereby when the movement of the feeler is affected by a detector the loom is stopped.

25. In av warp stop-motion for looms, the combination of the reed, a system of movable warp-thread detectors, loosely laid in gravity contact upon a detector-frame and having ends inserted between the reed-dents, the detector-frame, end blocks carried by the detector-frame whereby the detectors are kept in place laterally, a feeler, automatically vibrated across the reed-dents, the detectors adapted to be moved by the warp-threads in the formation of the shed, provided the warps are in good order, the feeler adapted to make contact with a detector which is not lifted by a warp-thread, and shipper mechanism connected with the feeler whereby when the movement of the feeler is affected by a detector the loom is stopped.

26. A warp-thread detector for loom stopmotions, adapted to cooperate with the reed, and consisting of a key provided with a reedentering point at one end, a gravity pivotbearing at the other end, and a warp-engaging point, thicker than the reed-entering end,

between the latter and the pivot-bearing.

27. In a warp stop-motion for looms, the combination of the reed, a series of warpthread detectors playing between the reeddents, mounted externally to the reed upon a detector-frame, and independently removable therefrom, the detector-frame, a feeler, automatically vibrated across the detectors,

.the detectors adapted to be moved by the warp-threads in the formation of the shed provided the warps are in good order, the feeler adapted to make contact with a detector which is not lifted by its warp-thread, and shipper mechanism connected with the feeler whereby when the movement of the feeler is affected by a detector, the loom is stopped.

28. In a warp stop-motion for looms, the combination of a reed, a system of movable warp-thread detectors carried by a detectorframe external to and moving with the reed, the detector-frame, a feeler, automatically vibrated across the detectors, each detector provided with a reed-space-entering end, a pivot,and a warp-engagin g finger between the reed end and the pivot, the said detectors adapted to be sustained by the warp-threads in the formation of the shed provided the Signed by me at Manchester, New Hamp warps are in good order, the feelel' adapted shire, this 21st day of February, 1901.

to make contact with a, detector which is not sustained by a shedding warp, and shipper JOSEPH LEMYRE' mechanism connected with the feeler Wh61'6- Witnesses:

by, when the movement of the feeler is at- EDWIN F. JONES,

fected by a detector the 100m is stopped. I A. W. MORGAN.

Images