US1532668A - Means for protecting warps from damage in looms - Google Patents

Description

. April 7, 1925. 1,532,668

w. H. BAKER MEANS ox PROTECTING WARPS FROM DAMAGE IN LOOMS Fi1ed May 25. 1925 2 Sheets-Sheet 1 .52 5 4 5/ 29 5 /4 so I I 38 Patented Apr. 7, 1925.

WILLIAmf n. BAKER, or MONTREAL, annexe, omens.

.lllEANS FOR PROTECTING WARPS FROM DAMAGE IN LOOKS.

Application filed may 25, 1923. m No. cameo.

To all whom it may concem: I

Be it known that 1, WILLIAM H. BAKER, a citizen of the United States-of America,

' and resident of the city of Montreal, in the Province of Quebec and Dominion of'Canada, have invented certain new and useful Improvements in Means for Protecting Warps from Damage in Loo-ms, of which the following is a full, clear, and exact description.

This invention comprises a novel and improved embodiment of the principles disclosed in my application for United States Letters Patent, Serial No. 618,584, filed th 12th February, 1923. The disclosure in the said application relates to mpans for protecting a warp in fast reed looms from damage by reason of a shuttle lying partially or wholly in the open shed when the lay beats up. According to one portion of the said invention the frogs against which the lay daggers strike to effect the desired stopping are positively connected with the whip roll and with yielding force absorbing means capable of arresting the lay movement independently of the disconnection of the driving power. This connection serves also to move a warp stop motion, if such is used, with the lay and whip roll when the loom bangs off to avoid jerking the threads through the stop motion.

The present invention relates in part to the particular form and arrangement of -means for accomplishing the objects set forth in the aforesaid application and to the details of construction thereof, and further relates to certain additional features of construction and operation. Notable among these additional features are means of adjustment between the whip roll and force absorbing means on the one hand and the frogs on the other hand to enable the amplitude of lay movement before banging off occurs to be regulated and also to compensate for worn or broken daggers. Another notable feature is provision for use of a thickand thin bar preventer without interference between same and the protection. Other features will be ascertained from the following description.

Warp releasing devices have been provided for looms operating without stop motions on very light goods and various collapsible whip roll mountings have been suggested to save the warp in the event of a shuttle failing to be properly boxed. Ezeperience has demonstrated that there is not suflicient time in which to move these devices with certainty to protect the warp. I believe I am the first to rovide a resilient mounting'for a whip rol capable of stop-- ping the beat up of the lay on all classes of goods in a manner to positively save the warp, and also the first to provide an adjustable positive and direct connection between the frogs and whip roll of a loom to give protection'to the warp and permit of frog adjustment to'fix the bang off point as desired and also to compensate for dagger breakage or wear.

The accompanying drawings and the following description relate to an ordinary horizontal loom, but it is'to be understood that this type has been selected merely for purposes of illustration and explanation as being the most simple, and that the application of the invention is not limited to the particular type of loom illustrated and described, the invention being applicable egually to other types with such minor modi cations in the dimensions and disposition of the parts as may be necessary to adapt the invention to such other types.

In the drawings, which i-llustrate one'embodiment of the invention Fig. 1 is an end elevation of an ordinary loom showing the application of the present invention thereto but representing only certain of the usual parts of the loom mechanism.

Fig. 2is a fragmentary plan view.

Fig. 3 is a rear elevation.

Fig. 4 is a rear elevation showing one of the warp stop motion supports with a portion of the loom-frame in vertical section.

Fig. 5 is a similar view showing one of the frogs.

Referringmore particularly to the draw-- ings, 11. designates the frame of a loomand 12 a lay supported in the usual way by swords 13 and hgving in connection therewith the usual protection rod 14; having binder fingers l5 engaging shuttle swells or binders 1 6. The protection rod also carries the usual dagger or daggers 17. The loom frame further supports the usual warp beam 18 by means of journals 19 resting in notches 20 in the frame.- While only one end of the loom is illustrated it will be understood that so far as this invention is concerned the opposite end is similar except as may be hereinafter noted.

In the drawings there is shown bolted to the rear edge of each end frame 11 a bracket 21, which projects rearwardly from the frame and is adapted to receive and revolubly support a shaft 22 extending from end to end of the loom. The shaft is preferably supported in inclined slots 23 in the brackets in order to facilitate the removal thereof as may be necessary. Strong levers 24 are rigidly secured intermediate their ends to the opposite ends of the shaft 22 and are disposed in approximately vertical positions with their upwardly extending arms offset outwardly from the loomframes a suflicient distance to allow the warp beam journals to pass up or down between the levers and frames. The lower'end of each lever is connected in any suitable way to one end of a heavy helical spring 25 or other suitable force-absorbing means, the opposite end of which is connected to the loom frame. In the case of a helical spring as shown, the forward end of the spring may terminate in a straight shank 26 passing through a lug 27 bolted to the loom frame and secured in the lug by nuts 28 screwed on the shank which may be threaded for a suitable part of its length to permit of materially altering the tension of the spring. In order to limit movement of the levers under influence of the springs, suitable stops are provided. One convenient form of stop is a U- shaped metal strap or yoke 29 embracing the upper end of the lever and rigidly and adjustably connected to the frame. A cushion 30 may be provided between the yoke 29 and the lever to eliminate noise and shock when the lever is returned against the stop by the spring. The shaft 22 should be heavy enough to avoid appreciable torsion under any load which will be imposed upon it in the operation of the loom, so that if the upper end of either lever 24 is drawn forwardly the other lever will move simultaneously and equally and the springs will be equally loaded. To enable satisfactory connections to be made with the springs and other elements the levers 24 are disposed outside the plane of the frames 11, as clearly shown in Figure 3, and in order to enable the use of stops of the character described when the levers are thus disposed, the upper end of each lever is extended inward toward the adjacent frame sufficiently for the upper extremity of the lever to lie in the plane of the frame. An intermediate offset portion, designated 31, is provided between the upper extremity of each lever and the main portion thereof, this last offset portion being only slightly outside the plane of the end frame. Below the offset portion 31 each lever is disposed, for a part at least of its length, materially outside the plane of the end frame to give passage to the beam journal 19 and enable insertion or removal of the beam without interference with or from the levers. With this insertion or removal in View, the brake chains 32 of the beam preferably pass in rear of the shaft 22 to the usual tensioning means 33.

At the front of. the loom frogs 34 of substantially the usual t'ype containing inset bits 35 are slidably mounted, one on each end frame, for movement backward and forward. These frogs are provided with lugs 36 embracing the frames and holding the frogs against movement out of the desired line. Each frog is provided with a heavy lug 37 overhanging the outer side of the frame and apertured for the passage of a rod 38. A rod 38 is provided at each end of the loom, it extending from front to rear outside the frame. The rear end of each rod 38 is supported by substantial pivotal connection to the adjacent lever 24. The connection is preferably established in the offset portions 31 of the levers in order that the rods may be disposed conveniently close to the frames. Preferably each rod is provided with bifurcations 39 embracing the corresponding lever. The forward end of each rod 38 is threaded and carries nuts and lock nuts 40 clamping between them the lug 37 of the frog and permitting the adjusting of the frog along the rod 38, so that the amplitude of movement permitted to the lay before the dagger strikes the frog may be regulated as desired, thus determining the bang ofi point and also enabling compensating adjustment to be made for worn or broken daggers.

In the ordinary loom illustrated, brackets are customarily attached to the frames to support the whip roll or rolls and also the warp tension regulating means which serves to prevent irregular packing of the filling with consequent thick or thin bars across the cloth and which mechanism is ordinarily called a thick and thin b-ar preventer or bar preventer. According to this invention the bar preventer is combined with the swing frame constituted by the levers 24. Thus, herein, whip-roll supporting brackets 41 are mounted upon the upper extremities of the said levers, such brackets having hearings in which are received the journal portions of the whip-roll rockshaft 42, the said rockshaft having at tached thereto the usual arms 44 having hearings in which the journals of the roll or warp-guide 43 are received. As heretofore, a plurality of bearings is provided in each of the brackets 41, to enable the rockshaft 42 and roll or guide 43 to be set forward or rearward, according as circumstances may require, and a plurality of bearings is provided in each of the whiproll arms 44 to enable the roll or warp guide 43 to be mounted in said arms at different distances from the axis of the rockshaft 42,

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preventer mechanism.

The location of the fulcrum shaft 2-2 below the warp beam and sufficiently in rear of the loom frames to give clear passage between the frames and levers for the beam journals, combined with the location of the levers outwardly of the frames or the provision of outward oflsets therein to form journal passages, avoids interference with the insertion and removal of beams. The employment of open bearings for the fulcrum shaft provides for easy and quick stripping of the mechanism from the loom and also for easy application.

The entire device is of such nature that it may be very easily and quickly applied to existing looms without removing the looms from the weaving room, and may also be applied to new construction at very small additional cost, and in either case will enable fast reed looms to be operated at much higher speed than would otherwise be possi le.

The arrangement herein disclosed is positive and certain in its actionand simple in construction, being free from cams, latches and like devices which are liable to become jammed or misplaced and which do not function with the certainty and rapidity necessary if the speed of the loom is to be increased.

It Will be understood that the lay stopping springs or equivalent may be located in other positions, and that for lay stopping the illustrated connection or any other connection with the whip roll is not necessary, and that any other suitable means of warp slackening may be associated with the stopping mechanism.

Having thus described my invention, what I claim is 1. In a loom, the combination consisting of a lay, a warp-beam, a whip-roll, a whiproll support constituted of a swingframe comprising a transversely-extending rockshaft arranged below the warp-beam and arms on which the whip-roll is mounted with capacity to rock relative to the arms in response to variations'in the tension of the Warp, and so that the whip-roll is carried forward and rearward by the swing-frame as the latter swings; protector-mechanism connecting with said swing-frame, and momentum-absorbing means holding the swingframe in its normal position and operating to arrest the lay in its beating-up movement, without shock, when the protector-mechanism connects the lay with the swing-frame.

2. In a loom, the combination consisting of a lay, a warp-beam, a whip-roll, a whiproll support-constituted of a swing-frame comprising a transversely-extending rockshaft arranged below the warp-beam and arms on which the whip-roll is mounted frame,

with capacity to rock relative to the arms in response to variations in the tension of the warp, and so that the whip-roll is car-v ried forward and rearward by the swingfra'me as the latter swings, bar-preventer means controlling the whip-roll, protectormechanism connecting with said swingholding the swing-frame in its normal position and operating to arrest the lay in its "beating-up movement, without shock, when the protector-mechanism connects the lay with the swing-frame.

3. In a loom, the combination consisting of a lay, a warp-stop-n'iotion, a warp-beam, a warp-guide, a 'warp-guide support constituted of a swing-frame comprising a transversely-extending rockshaft arranged below the warp-beam and arms on which the warp-guide is mounted,protector mechanism connecting with the warp-stop motion and swing-frame, and momentum-absorbing means holding the swing-frame, warp-guide, and warp stop motion in their normal aositions and operating to arrest the lay in its beating-up movement, without shock, when the protector-mechanism connects the lay with the warp stop motion and swing-frame.

4. In a loom, the combination consisting of a lay, a warp-beam, a whip-roll, a movable whip-roll support on which the whiproll is mounted with capacity to rock rela tive to the support in response to variations in the tension of the warp, and so that the whip-roll is carried with the support as the latter moves forward and rearward, barpreventer means controlling the whip-roll, protector-mechanism connecting with said support, and momentum-absorbing means holding the support in its normal position and operating to arrest the lay in its heating-up movement, Without shock, when the protector-mechanism connects the lay with the whip-roll support.

5. In a loom, the combination consisting of a lay, a warp-stop motion, a warp-beam, a whip-roll, a movable whip-roll support on which the whip-roll is mounted with capacity to rock relative to the support in response to variations in the tension of the warp, and so that the Whip-roll is carried with the support as the latter moves forward and rearward, bar-preventer means controlling the whip-roll, protector-mecha nism connecting with the warp-stop motion and whip-roll support, and momentum-absorbing means holding the warp-stop mosupport.

6. In a loom, the combination conslsting and momentum-absorbing means nuaaeea an expanding spiral spring 47, which is compressed between the said guide-lug and a collar 48 that is clamped upon the rod with capacity for adjustment lengthwise of the rod so that the tension of the spring 47 may be varied. This spring acts, throu h the connections which have been descri ed, with a tendency to uphold the Whip-roll against the pressure of the warp. The devices act substantially as in the case of other thick and thin place preventers to place the warp under proper tension through the action of a. spring 47 in expanding to avoid the production of a thin place or bar under circumstances tending to space successive picks of weft an undue distance apart, and through the yielding of the said spring to avoid the production of thick places or bars under circumstances tending to result in successive picks being beaten up too close together.

When a warp stop mechanism is used, the same is operatively connected with the rods 38, in order that when the protector mechanism acts the warp stop motion shall be moved synchronously with the lay and Warp and in the same direction, so that thereby jerking of the warp threads through the warp stop motion when the lay beats up with a shuttle trapped in the shed, and consequent liability to chafing and breakage, are avoided. This operative connection of the warp stop motion with the rods 38 is effected most conveniently by mounting brackets 50 on the rods 38, which brackets preferably carry vertically adjustable standards 51 carrying the usual warp stop motion support 52. In order to prevent vertical movement of the stop motion'due to vibration or any other cause, lugs 53 are provided projecting inwardly from the brackets 50 and overlying the frames. Adjusting screws 54:, having lock nuts 55, are threaded through the lugs 53 and bear upon the frames 11.

The operation of the devices is to-a certain extent as described in my former application already referred to. In the event of a shuttle being improperly boxed and lying partly or wholly in the open shed there is no movement of the swell 16 to raise the daggers 17, with the result that as the lay beats up the daggers strike the sorbed b forward movement 0 frogs 35 and lay movement is arrested before damage can be done to the warp. In ordinary looms the frog is fixed, with the result that great shock is occasioned, to practically all parts of the loom mechanism. According to this invention the frogs are movably mounted and connected to the rods 38 and levers 24, with the result that lay movement instead of being arrested instantly and with great shock is arrested within a predetermined distance and ahthe springs 25 or equivalent devices wit out shock to the loom. This man ner of stopping enables the loom to be operated at much higher speed than is otherwise possible and without danger of damage to the loom or warp by operation of the protecting mechanism.

The ad uStment of the stops 29 determines the initial or normal position of the whip roll and rods 38, but by means of the adjusting nuts 40 the frogs may be very accurately adjusted upon the rods to give any desired amplitude of movement to the lay before stopping is initiated, and in this way the bang 0d point may be regulated. The adjustment, when properly made, will also ensure the daggers striking at the proper instant and will enable compensation for wear or breakage of daggers. Adjustment is very necessarfi1 when operating fast reed loloini 1 at the 'gher speeds herein contemate P When bar preventer mechanism is-in use on' a loom equi ped with a whip roll forwardly moving or warp protection, as herein described, it will be seen that if the preventer mechanism remained connected to a fixed abutment on the frame it would operate to tension the war at the same rate that the roll relieved the tension. To overcome this and enable the preventer and protection mechanisms to operate without interference, the usual fixed abutment is transferred from the fixed frame to a frog so that the abutment moves forward with the whip roll during protection and the preventer mechanism does not operate, or if it did operate would do so to slacken the warp. When the loom is running normally" the frog is stationary and the preventer mechanism operates without affecting the protecting mechanism because the protector springs are much stifi'er than the preventer spring. The abutment of the reventer is not necessarily confined to be- 1ng applied to the frog but may be at any suitable place on the rod 38 with the same eifect its location on the frog being amatter of convenience and a means of avoidmg an additional part.

It will be noted that when preventer mechanism is in use the whip roll has two movements to' slacken the warp namely, first forwardly when the loom is protecting, and

of a lay, a warp-beam, a whip-roll, a movable whip-roll support on which the whiproll is mounted with capacity to rock relative to the support in-response to variations in the tension of the warp, and so that the whip-roll is carried by the support as the latter moves forward and rearward, barpreventer means controlling the whip-roll, ielding means for holding the support in 1ts normal rearward position, and protectormechanism operating to connect the lay with the whip-roll support when the shuttle fails to box properly.

7. In a loom, the combination consisting of a lay, a warp-stop-motion, a whip-roll, a movable whip-roll support on which the whip-roll is mounted with capacity to rock relative to the support in response to variations in the warp-tension and so that the whip-roll is carried by the support as the latter moves forward and rearward, barpreventer means controlling the whip-roll, yielding means for holding the warp-stop- -motion and whip-roll support in normal positions, and protector-mechanism operatmg to connect the lay with the warp-stopmotion and whip-roll support when the shuttle fails to box properly.

8. In a loom, the combination consisting of a lay, a warp-beam, a whip-roll, a movable whip-roll support on which the whiproll is mounted with capacity to rock relative to the support in response to variations in the warp-tension, and so that the whiproll is carried with the support as the latter moves forward and rearward, yielding means for holding the support in its normal rearward position, and protector-mechanism operative to connect the lay with the whip-roll carrier when the shuttle fails to box properly.

9. In a loom, the combination consisting of a lay, a warp-stop-motion, a whip-roll, a movable whip-roll support on which the whip-roll is mounted with capacity to rock relative to the support in response to variations in the warptension and so that the whip-roll is carried by the support as the latter moves forward and rearward, yielding means for holding the warp-stop motion and whip-roll support in normal POM sitions, and protector-mechanisms operating to connect the lay with the warp-stop-motion and whip-roll-su'pport. when the shuttle fails to box properly.

10. In a loo-m, the combination with the lay, protector-mechanism including daggers and frogs at both sides of the loom, and a warp-beam mounted at the rear of the loom, of a shaft mounted below the warpbeam and levers on said shaft at opposite sides of the loom and extending upward therefrom, with the frogs connectedwith said levers above said rockshaft, and momentum-absorbing means acting to hold said levers in their normal position, operating to arrest the lay in its beating-up movement without shock, when the protectormechanism connects the lay with said levers.

11. In a loom, the combination with the lay, protector-mechanism including daggers and frogs at both sides of the loom, a warpbeam mounted at the rear of the loom, and a warp-support around which the warp extends on its way from the warp-beam to the front of the loom, of a shaft' mounted below the warp-beam and warp-support carrying levers mounted on said shaft at opposite sides of the loom, with said frogs connected with said levers, and means acting yieldingly to hold said levers and warpsupport in their normal positions, permitting themto be moved forward by the protector mechanism when the latter acts.

12. In a loom, the combination with protector-mechanism, a warp-beam removably mounted in bearings at the rear of the loom, and a warp-guide around which the Warp passes on its way from the warp-beam to the front of the loom, of a swing-frame comprising a rockshaft journaled in bearings in rear of and below the beam axis and out of the path of the beam in removal and insertion and warp-guide-carrying arms affixed to the said rockshaft, and means acting yieldingly to hold said swing-frame and warp-guide in their normal positions, permitting them to'be moved forward by the protector mechanism when the latter acts.

13.. In a loom, the combination with the lay, protector-mechanism including daggers and frogs at both sides of the loom, a warpbeam mounted at the rear of the loom, and a warp-support around which the warp extends on its way from the warp-beam to the front of the loom, of a swing-frame comprising a rockshaft journaled below the warp-beam and warp-support-carryin levers atopposite sides of the loom, with sai frogs connected with said levers, and means acting yieldingly to hold said swing-frame and warp-support in their normal positions, adapted to permit them to be moved forward by the protector-mechanism when the latter acts.

14. In a loom, the combination with the lay, protector-mechanism including a dagger and a frog, a warp-beam mounted at limited extent of movement of the swingframe and warp-guide by which the warp is slackened.

15. In a loom, the combination with the lay, protector-mechanism including daggers and frogs at both sides of the loom, and a warp-beam mounted at the rear of the loom, of a swing-frame at the rear of the loom comprising a rockshaft journaled below the warp-beam'and levers affixed to said rockshaft at opposite sides of the loom, with the frogs connected with said levers above'said rockshaft, and momentum-absorbing means combined "with said swing-frame by which the lay is arrested in the beating-up movement thereof Without shock when the'proteeter-mechanism acts.

16. In a loom, the combination with the lay, protector-mechanism including a dagger and a frogga warp beam mounted at the rear of the loom, and a warp-controller around which the Warp extends on its way from the warp-beam to the front of the loom, of a swing-frame comprising a rockshaft journaled below the warp-beam and warpcontroller-carrying levers affixed to said rockshaft at opposite sides of the loom, with said frog connected with said swing-frame, and momentum-absorbing means combined with said swing-frame, holding the latter in normal position substantially unaffected by warp-sti.-ainsincident to shedding and beating-up, and operating to arrest the layin the beating-up movement thereof without shock when'the dagger engages the frog but permitting a limited movement of the swingframe for warp slackening to result from such engagement.

1?. In aloom, the combination with the lay, protector mechanism including daggers and frogs at both sides of the loom, a warpbeam mounted at the rear of the loom, and a warp-support around which the warp extends on its way from the warp-beam to the front of the loom, of a swing-frame comprising a rockshaft journaled below the warp-beam and warp-support-carrying levers at opposite sides of the loom, with said frogs connected with said levers, and momentum-absorbing means combined with said swing-frame operating to arrest the beating-up movement of the lay without shock when the protector mechanism acts but permitting the swing-frame and warp-support to be given by such action a limited movement for warp-slackening.

18. In a loom, the combination with the lay, protector-mechanism including a dagger and a frog, a warp-beam removably mounted in bearings at the rear of the loom, and a warp guide around which the warp passes on its way from the warp-beam to the front of the loom," of a swing-frame comprising warp-guide-carrying arms "and a rockshaft journalled in hearings in rear' of and below the beam axis and out of the path of the beam in removal and insertion, and momentum-absorbing means combined with said swing-frame operating to arrest the lay in the beating-up movement thereof when the protector-mechanism acts.

19. In a loom, the combination consisting of a frame having bearings to which journals of a warp-beam may be removably applied, a warp-beam, a warp-guide adjacent the warp-beam, a warp-guide carrying frame comprising a rockshaft arranged below the warp-beam clear of the beam-heads and warp-guide-carrying arms spaced apart properly to permit the beam-journals to be entered between them in placing such j0urnals in the bearings, yielding means for holding such frame and warp-guide'in their normal positions, and protector-mechanism connected operatively to saidframe so as to move the warp-guide to slacken'the warp when the shuttle fails to box properly.

20. In a loom, the combination consisting of a lay, protector mechanism, a warp-beam removably mounted'in bearings at the rear of the loom, a warp-guide around'which the warp passes on its way from the warp-beam to the front of the loom, a swing-frame com prising warp-guide-carrying arms and a transversely extending rockshaft, bearings in which said rockshaft is mounted re movably in a position below the warp-beam permitting removal and insertion of the beam, and means combined with said swingframe for'holding thewarp-guide in normal position while permitting it to be actuated therefrom by 'the protector-mechanism to slacken the warp.

21. In a loom, the combination consisting of a lay, protector-mechanism including a dagger and a frog, and momentum-absorbing means acting through said dagger and frog to arrest the lay without shock before completion of its beating-up movement by absorbingthe momentum of the lay, said mechanism including a connecting-rod joining the frog to the momentum-absorbing means, and adjustment means in connection with said connecting-rod whereby the point at which the lay is brought to rest may be determined at will.

22. In a loom, the combination consisting of a lay, protector mechanism includin a dagger and a frog, momentum-absorbing means capable of arrestingthe lay without shock before completion of its beating-up movement by absorbing the momentum of the lay, a connecting-rod extending from said momentum-absorbing means through a portion of'the frog, and nuts on said connecting-rod at opposite sides of said portion to adjust the frog and rod relative to each other.

23. In a loom, the combination consisting of a whip-roll, a support therefor movable for warp slackening, a bar-prevention mechanism mounted on the support and connected with the whip-roll, a frog adapted to receive lay movement, a rod connecting the frog and support, and an abutment against which said prevention mechanism operates.

24. In a loom, the combination consisting of a frame, a lay, a Whip-roll, means to move the whip-roll with the lay for warp slackening, a warp-stop motion mounted for movement with the whip-roll, means to steady said warp-stop-motion comprising lugs at opposite ends thereof overhanging the frame, and means adjustable in said lugs to have abutting and sliding engagement with the frame.

25. In a loom, the combination consisting of a lay, protector mechanism including a frog, an oscillatable frame, a rod connecting the frog to said frame, a rockshaft mounted on said frame, arms on said rockshaft, a warp-guide carried by said arms, another arm on said rockshaft, a rod connected to the latter arm and slidably engaged 'With the frog, a spring on said rod in compression against the frog, and means whereby the frame is held rearward yieldingly in normal position.

26. In a loom, the combination consisting of a lay, protector-mechanism including a frog, an oscillatable frame, a rod connecting the frog to said frame, a rock-shaft mounted on said frame, arms on said rockshaft, a warp-guide carried by said arms, another arm on said rockshaft, a rod connected to the latter arm and slidably engaged with the frog, a spring on said rod in compression against the frog, and lay-movementabsorbing means engaging with said frame and tending to actuate itto carry the warpguide bodily away from the lay.

27. In a loom, the combination consisting of a lay, a warp-beam, a whip-roll, a movable whip-roll support, yielding means for holding the said support in its normal position, protector mechanism operating to move the said support in synchronism with the lay for Warp-slackening purposes when the shuttle fails to box properly, and a bar preventing spring-control for said whiproll moving without change of tension in unison with the support.

In witness whereof, I have hereunto set my hand.

WILLIAM H. BAKER.

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