US834000A

US834000A - Haircloth-loom.

Info

Publication number: US834000A
Application number: US26499205A
Authority: US
Inventors: George S Cox
Original assignee: GEORGE S COX AND BROTHER; WALTER S COX
Current assignee: GEORGE S COX AND BROTHER; WALTER S COX
Priority date: 1905-06-13
Filing date: 1905-06-13
Publication date: 1906-10-23
Anticipated expiration: 1923-10-23

Description

PATENTED 00T. 23.190627' '.G. S. COX. HAIRGLOTHLOOM. 4 APPLIGATLQN FILED Jm'u: 1s, lsosf 4 SHEETS-SKEET l.

2 0 335 6 m 34 mmm N9 l O d 1 l .u m o O 1HE Nouns Prrsss co., wAsulNGaN, D. c.

l No-.fa'a4,ooo. PATENTBD 00T. ha, 1906.` G. s-. 00X.

H-AIRoLoTH LOOM.`

APPLICATION FILED-JUNE 13.1905.

4 SHEETS-SHEET 2.

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Milena.;

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PATBNTBD OCT?. 23, 190s.

. G. S. COX. HAIROLOTH LOOM.

APPLICATION FIIED JUNE 13,1905.

4 SHEETS-SHEET 3. n

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No' s344000'. BATENTED 00123, 1906.v

G. s. 00X. HAIRGLOTH LOOM.`

APPLICATION FILED JUNE13.1905.

4 SHEETS-SHEET 4.

Wzizncsses 'mx vonnis Pzrsns cc., wAsH/Ncon. n. c.

fno. 834,000.

GEORGE S. COX, OF FITZWATERTOWN, PENNSYLVANIA, ASSIGNOR TO i 'HIMSELF AND WALTER S. COX,

TRADINGv AS GEORGE S. lCOX AND BROTHER, OF PHILADELPHIA, PENNSYLVANIA.

HAlRCLOTH-LOOM.

Specification of Letters Patent.

Patented Oct. 23, 1906.

Application filed June 13, 1905. Serial No. 264,992.

lTo all whom it may concern:

' .Beit known that I, GEORGE S. COX, a citi- `zen of the United States, residingfat Fitzwa- Htertown, county of Montgomery, and State of Pennsylvania, have invented a new and 'useful-Improvement in Haircloth-Looms, of

which the :following is a full, clear, and exactv description, `reference being had to the ac-;

companying drawings, which form a part ofr fthis specification. y

M- invention relatesto looms, and more? :particularly -to that type of loom adapted tol -thevmanufacture of that variety of hairclothl in'whichfa pick of hair anda pick of yarn are 1 Acontained -in each shed of warp, as shown, de- ,l scribed, and Iclaimed in Letters Patent issued t@ me September '13, 1904, No. 769,790. A? loom adapted to weave such a cloth is shown,

described, and claimed in Letters Patent; issued to vmeJuly 18, 1905, No. 795,249.

VThe ,present invention is an improvementl on the. loom of the last-mentioned patent', and has for its special object to stop the rota- .f tion of the ltake-up mechanism in case the,

. ynate number'of successive picks of yarn.

The invention also has for its object to provide a nipper that is capable of simultaneously .grasping with the requisite tightness two or J more picks of weft of substantially different thickness, more specifically a pick of hair and l. ra pick of yarn.

i he invention consists of the means herel inafter described and claimed for effecting improved nipper.

the stated objects.

Figure 1 is a side elevation of the loom. Fig. 2 is affront elevation. Fig. 3 is a detail plan view ofthe ratchet mechanism operated when vthe nipper fails to grasp an end of yarn. Fig. 4 is a ydetail view,in side elevation, of the gravity-lever 'and associated mechanism operated when thenipper fails to grasp an end :of yarn. Fig. 5 is a erspective view of the belt-shifting controlever and the mechanism by which it is immediately actuated. Fig. `6 is a plan view of vthe jaw end of my Fig. 7 is a side elevation ofthe nipper of Fig. 6.

a is a frame of the loom, having suitable bearings for the studs of the lay b vfor the spindles of the warp-beams c, cloth-roller d, and take-up rollers d and d2 and yfor the shafts of ratchet-wheel e and crank-shaftf.

g is a spur-gear on the shaft of ratchetwheel e.

h is a spur-gear on the spindle of the takeup roller d.

i j 7c l are the gears connecting gears g and h. d3 is another gear on the shaft of roller d', engaging a gear d4 on the shaft of roller d2.

d5 is a pulley on the shaft of roller d2..

d6 is a pulley on the shaft of the cloth-roller and (Z7 is a beltl connecting pulleys d5 and d6..

The ratchet-wheel, which is operatedl by the lay in the usual manner, as hereinafter described, operates the take-up rollers d and (Z2 through the chain of gearing above set out,

and the roller d2 operates the cloth-rollerd by means of the belt-and-pulley connection described. The cloth from the loom passes down to, under, and partially around take-up roller d, thence up to, over, and partiallyT .f around take-up roller d2, and thence down to the cloth-roller. The take-up rollers d and i d2 are roughened.

To avoid confusion in the drawings, the usual well-known mechanism for operating the lay is not shown.

tis the usual trough orreceptacle containing separate strands of horsehair.

r is the yarn-carrier for the linen, cotton, or other yarn which it is designed to use in connection with the hair, as above stated, to form the weft of the compound cloth. The specific construction of this yarn-carrier is substantially the samel as that set forth in Letters Patent issued to me July 18, 1905, No. 795,250, and will be hereinafter more fully described. fn. is the nipper,.the action of which, as set forth in said Letters Patent No. 795,249, is to grasp one end of a strand of at each reci rocation of the selector a strand of hair will e selected from the trough and IOO presented to the nipper at the beginning of its throw. The outfeed eye of the yarn-carrier extends opposite the jaw of the selector, so that the yarn extending therethrough will be in position to be grasped by the nipper at the same time that the latter grasps a strand of hair picked by the selector;

The trough is given the usual reciprocating motion by means of a connecting-rod m, piv- Io oted at one end on the slide 11 and at the other end on the gear 0, which is driven by the gear p, the shafts of both gears turning in bearings on the loom-frame. shaft of gear p is the ratchet-wheel q, which i is turned by the pawl u, pivoted on the upper end of the lever t. The lever v is pivoted between its ends on the shaft of gear p, the lower end of lever v being connected by the link w with the lay l). The lay thus imparts zo to the lever v a constantly-reciproeating motion, thus causing the pawl u to turn the ratchet g tooth by tooth. This movement of the ratchet-wheel imparts, through gears p and o and connecting-rod m, an alternate z5 step-by-step advancing motion and a stepby-step receding motion to slide 11 and trough t, thus bringing all sections of the trough immediately under the selector.

I will now describe the mechanism for actuating the ratchet e, which, as above described, actuates the take-up mechanism.

58 is a bracket secured to the lay.

56 is a lever pivoted at its lower end to the frame of the loom and connected at its upper 3 5 end by rod 57 with the bracket 58.

' 55 is a pawl pivoted to the lever 56. This pawl is the operative pawl for the ratchet e, turning the latter at each forward stroke of the lay. During the operation of the pawl 4o 55 the pawl 60, pivoted between its ends to the loom-frame,l acts as a holding-pawl.

It is necessary to cut off the yarn at or about the time of (preferably just before) the completion of the throw of a pick of hair and yarn by the nipper n. To effect this, I rovide a cutter or shears, one blade 61 of w iich is connected to the loom-frame, while the other blade 62 is pivoted to blade 61 and connected, by means of a link 63, with the 5o end of the bell-crank lever 64. The other end of the bell-crank is connected by a link 65 with the lower end of an intermediatelypivoted lever 66, the upper end of which carries the roller 67.

68 is a cam on the crank-shaft, having an abrupt descent from its highest to its lowest oint, so that as the roller 67 overrides its highest point the spring 69, acting upon the lower end of the lever 66, is free to draw that 6o end of the lever 66 back rapidly, thus through link 65, bell-crank 64, and link 63 drawing down the cutting end of blade 62 of the shears and severing the yarn. Immediately thereafter the cam 68 again acts upon the roller 67 to move the lever 66 to its illus- Fixed to the' trated position, thus again opening the blades of the shears.

The selector s is of a well-known construction. It consists of the part 90, vertically movable in guides 92 and carrying the fixed jaw, and the part 91 hinged to the part 90 and carrying the movable jaw.

97 is a shaft secured to which is the bevelgear 76, engaged and driven. by the bevel` gear 77 by means of connections from the crank-shaft. (Not shown, but well understood by those familiar with haircloth-looins.) Secured to shaft 97 is the cam 95 and the crank-disk 98.

99 is a connecting-rod between disk 98 and part 90, whereby the selector is reciprocated vertically.

98 is a lever pivoted between its ends to the bracket 94, one end of the lever engaging part 91 and the other end. the cam 95. When the upper end of lever 98 is brought opposite the low point of the cam 95, the spring 96 at once moves the lever 93 so as to engage the part 91 of the selector and move it on its linge to open the jaws. As the upper end. of lever 93 rides up onto the high point of the cam 95 the lever 98 is retracted from the part 91 of the selector, permitting it to drop to close the jaws.

The yarn-carrier 1" is of substantially the same construction as set forth in said `Letters Patent No. 795,250. The supporting means for the yarn-carrier consists of a rod 102 in guides 108 103, secured to the loom-frame. The yarn-carrier itself consists of a plate 104, having a bracket 105, to which is secured a tube 106. The yarn extends from the bobbin 107 down through the spout 106 and through an eye 109 on the upper end of a bracket 111, secured -to the bracket 105, thence through an eye on the lower end of a bracket 112, secured to the guide 92, and thence into the upper end of the tube 106 and out through its open lower end.

110 is a pipe connected with the air-blast and also communicating with the tube 106. The effect of the blast of air is to cause the free end of the yarn projecting beyond the lower end of the tube to be blown out straight in a direction coincident with the direction of extension of the tube 106, which, asshown, is vertical. The tube 106 is located immediately opposite and somewhat above the selector s and directly over the line of travel of the nipper n, so that as the nipper moves forward to grasp a strand of hair and the free end of the yarn the latter will be in the precise position required for causing it to be grasped by the nipper. 1f for any reason the nipper fails to grasp an end of yarn, it is desirable, if not necessary, to prevent the warp feeding forward until after the pick of yarn is thrown. This is effected by stopping the rotation of the ratchet-wheel e and the chain of mechanism driven thereby for driv- IOO ratchetlwheelv c is' stopped by' lifting the .holdingfpawl y60, as without this pawlthe Aktension of the takeuprollers is effective to `return, the ratchetewheel after, itis moved forwardlby the pawl 55.'

mechanism is provided: 113 is a lever pivoted atone end tothe frame of the headmotionxof the loom, itsr other end normally restingon anl adjustable screw 119., engaging a ybracket 120, secured to the loomfframe. 114 is a connecting-rod pivoted at its upper end to the leverv 113 and at its lower yend to lone end of the lever 5115. Thelever 115 is pivoted between its ends tothe loom-frame.l

116 is a link connecting the other end of lever v115 with the-rear endof holding-pawl 60.

Whenthe'lever 113 is raised, it depresses the, rear end of pawl 60 by means of the connec- .tions specified andirai'ses the pawl off the' l'ratchet e..

wheel yturning looselyon a stud fastened to a .bracketon the loom. 118 is a'pawl-lever 5v pivoted' near its lactuating Iendfonthe lever 113 and .resting onithe bracket 120,l secured toV the loomeframe. A,'llhevnorrnal position of the paWl-lever` is that illustratedA in AFig. 1, in which the pawlisK just out of engagement y-with thezratchet-wheel 117 f 125 is a rod` piyoted at itsy upper end. to the pawl-lever 118. ."When the rod 125 is elevated,'the

irstaction is for the pawl to drop behind, one of the teeth. ofthe ratchet-wheel.y Con?` tinued upward movement. ofthe'rod125` causes the ratchetwheelltoadvance Yone tooth. yAsfso'onas the pawl contactswith the ratchet-wheel it can no llonger turn on its pivot, sothat whilethe ratchet-wh`eel is being turned thedistance of one tooth theA pawlfiever lisis lifted bodily,- thereby ress the ratchetfwheel e. p ,l

, .To' thelo'wer end of rod 125 is pivoted a lever 121,'A notched y'near its lower end. (See Fig. ,4.) ,Pivoted to the loom-frame isa lever 82,1,having af bloss engaging a cam 86l onthe crank-shaft.I As the-,cam 86 rotates4 the le` ver 84is raised, and fthe, knife-edged llug on the freeend of the lever 84 is adapted to engage the notchedlever 121, thereby raising rod '125 and through the connections before described lifting holding-pawl out'. ofv conl tact with they ratchet-wheel e. Normallyj however, thenotched lever "121 justv before thelever 8,4 rises has been moved into the pos ition shown in Figs. 1 and4 and is not in osition 'to .be engagedby the .lugon the en of 1 said lever 84. The movement ofthe notched lever 121,int o this inoperative position takes 1.

place whenever the nipper succeeds in graspf ing an end of yarn. As the yarn is pulled across the loom'by the nipper it engages" and elevates the finger 122, as hereinafter de'-, scribed. This finger is secured'toone end of a shaft 123, turning in bearings in a bracket on the loom-frame. To the other end of this shaftt is secured an arm` 124. VALs, the finger 12,2 is lraised it causes the arm 12,4'to engage and lmove the notched leverv 1 ;21 into its illustrated inoperative position." 'The yarn iscaused to'x'so elevate the finger by im? l l parting to the yarn-carrier support atth'e preper time an upward movement, ,which is effected by pivoting to the to'p ofrod 102 one end yof'a iconnecting-rod 70, the otherend 'of which is connected to the outer end of'the lever 7 01which is pivoted 'to the Iouter'end of a bracket71. 4 j 73 is a bracketfsecured tolleverf7'01land having a roller 7.4;, which contacts with the ofthe cam' 7Y5 and they mechanism actuated A i l therebythe rod 102 is caused to move up at lever :11 l3,- the following mechanism` is provided: 117 is` a .ra'tchet{ the propertim'e, causing the'yarn.. as it is pulled across the loom bythe nipper to rise, thereby moving thel notched lever 121 out of o eratlve position, as before described.,

hen, however, the nipper fails for any re`ason to' graspan end of'ya'rn, there is 'nothing i to move the notched lever 121 into its illustratedi position, and, it consequently drops down into a lverticalposition(the finger 122 being out of line of thel hair in the movement of the latter across the loom) with its notchl in position to beengaged bytheleverS, with theresult that the rod -12 5is lifted,thereby lroo through the mechanism' before described causing the holding-pawl 6() tobelifted from the ratchet-wheelc. l A v ,Y

The mechanism so fardescribed ,is all' that is essential to insurea stoppage .of 4the feed o f the warp` o`r,clo,th when the nipperfails t`o grasp .a`n endv ofyarn. Itis obvious, 'however,V that without anyadditional mechanism if for any reason the ya'rn-throwingmechanism becomes seriouslyy derangedthe result will be that for a number lof consecutive throws of the'nipperno 'yarnwill be thrown. Atthe same time, howeven'the nipper will continue to grasp and pull through'a strand of hair at each Lreciprocation, thereby ycausing a'niimber of piclsof hair to be lhunched yto-- gether in the sanieshed-of warp. It is: n'ecessaryv ,to .preventI "this contingency." T he most effective way of doing sohis 'to'stcptlfe loom in the eventthat any, such condition arises, so that the trouble with the yarn-,Garrier, whateyer it` may be, ma bediscove'red and repairedfl I haveaccor inglyprovided mechanism in addition tol that4 hereinbefore e described whereby in case" the nipper fails `l1*25v to grasp and pull through an end of yarnV for gaging -a cam l131 on the crank-shaft.

wheel 1=17 This -holding-pawl is pivoted on .a bracket on the loom-frame; l127 is a lever pivoted on another bracketon the loomv'frame and connected between its ends by 'means of a `flexible connection 128 with the `holding-.pawl 126.

'129 isa rod `connected'at its upper end to the end of lever 127 and at its lower end to Yone endof aleve 130. The lever 130 is pivoted at its-other end to the .loom-frame and between its ends is provided with -a lug en- The holding-pawl 126 is normally in engagement with the ratchet-wheel 117, but through the Aconnectionsfdescribed is lifted out of engagement with the ratchet 117 at every revolution of the crank-shaft and ata time following the vengagement :of the pawl-lever 118 with lthe .ratchet-wheel `,and is allowed to return into engagement with the ratchet-'wheel .1x17 before the pawl-lever 118 is disengaged therefrom.

From the foregoing 'description .it will be understoodvfthat if ythe nipperfat one recipro- `.cation fails to pull through yan end of yarn,4 .the f1-rst action is to turn the ratchet-wheel` .117. Thereafter when the lug on lever 84 drops on'to the low point of its actuating- :cam the pawl-l'ever 11518 4and the lever 113 are returned to their normal positions. Ratchet- 'wheel 117 continues to be held in its ad,

vanced position by reason of yits engagement With the holding-pawl 126.

If at the next;

reciprocation of the nipper an vend of yarn is pulled -through, the rod 125 is not again elevated, and .the lholding-.pawl 126 is lifted out -of vengagement with the ratchet-wheel 117,?

causing the ratchet-wheel Ito be returned to lits original position by mechanism to be herei inafter described. If, however, the nipperat its secondreciprocation fails to pull through .a-n end ofyarn, `the rod l125 is again operated, causing thefpawl-lever `1:18 to again engage the ratchet 117 and advance it another tooth. l

lnthisevent the disengagement of the holdl ing-pawl with the ratchet-wheel 117 will not 'permit the ratchet-wheel to return to its original position, as during the-disengagement of 'the holding-paw] 126 the ratchet-wheel 117 is being advanced bythe -pawl-lever 118. Intl .the same way if the ni per fails to pull anj end of yarn for the tbir successive time the paWl-lever 118 will advance the ratchet-1 wheel 117 a third tooth. When the ratchetwheel 117 is so advanced the third tooth, the mechanism for stopping the loom is brought into operation.

132 is a lever secured to the loom-frame at one end and having between its ends a slot .-133, engaging a pin l134 on the ratchet-wheel 1 17.

135uis a spring secured at one end to the lloom-frame and at the other end near the outer end of lever 132.

When the ratchet-wheel 117 is advanced,

as before described, a distance of one tooth, the lever 132, through the pin-and-slot connection described, is raised a certain distance. If on the next reciprocation of the Inipper an end of yarn is pulled through, the disengagement of the holding-pawl 126 from ratchetwheel 117 permits the spring 135 to return ythe lever 132 to its normal position, thus lcausing the ratchet-wheel to also return to its normal position. Further downward movement of the lever 132 is prevented by the engagement of pin 134 with the end of the slot I133. In the same way if the ni per on only two successive reciprocations fai s to pull through an end of yarn the spring 135 will 'return the lever v132 to its original position. If, however, the nipper for `three successive reciprocations fails to ull through an vend of yarn, the lever 132 will)be elevated to a sufficient height to bring into operation a chain of mechanism for stopping the loom. This chain of mechanism consists of the following: Secured to the end of lever 132 is a rod 136. The lower end of rod 136 is pivoted to theendofacrank 137, secured to a shaft 138, turning in bearings on the lay. (See Fig. 5.) Secured to the shaft is a lug 139. 140 is a tripping-lever fulcrumed between its ends on the breast-beam of the loom. 141 is an ear on the lever 140. The 'ear 141 has a bifurcated end adapted to be engaged by the lug 139. The normal position of the lug 139 is such that as the lay advances the lug will pass under the ear 141.

If the ratchet-wheel 117 turns a distance of one tooth or of ltwo teeth, the lever 132 and rod 136 will not be raised adistance sufficient to turn the shaft 138 suiiiciently to cause the lug 139 to engage the ear 141; but if the ratchet-wheel 117 is advanced a distance of three teeth then the lever 132 and rod 136 are raised a distance suiiicient to turn the shaft 138 so that the lug 139 is raised to a level with the ear 141. Consequently at this reciprocation of the lay the lug 139 engages the ear 141 and turns the lever 140 about its yfulcrum. This movement of the ylever causes it to engage the belt-shifting control-lever 142, which controls the shift of the belt from the fixed to the loose pulley, and stops the loom, as will now be described.

The control-lever 142 is of ordinary construction, having its lower end formed of spring metal and normally resting when the loom is in operation in a notch 143 at the rear of a slot 144, formed in a bracket on the loom-frame. To stop the loom, the lever 142 is moved out of the notch 143 into the rear end of slot 144 and then by its own spring Atension moves to the front of the slot.

145 is the usual belt-shifting lever fulcrumed between its ends on a bracket fastened to the loom-frame.

When, as before described, the lever 140, by 4reason of the engagement of Alug 139 with IIO Y ear 141, turns on its fulcrum and engages the control-leverl 142, it moves the latter out of the notch 143 into the slot 144, the lever 142 turn to their normal positions.

then moving by its own spring tension to the front of the slot, thereby actuating the lever 145 to shift the belt from the tight pulley to the loose pulley. At the same time that the l loom is stopped the holding-pawl 126 is lifted out of engagement with the ratchet-wheel 117, thereby permitting all the parts to re- The disengagement of the 126 is effected by the following means: 146

" is a Alever fulcrumed between its ends to the KIS " being the thicker material of the two.

loom-frame. One end of this lever is in position to be struckby the control-lever 142 as it moves toward the front of the slot. The other end of the lever 146 is provided with a wedge-shape cam 147. When the lever 146 is struck, and moved by the lever 142, the

cam 147 'moves under the end of lever 130,

lthereby through rod 129 lever 127, and flexisimultaneously.v The nipper as ordinarily' `constructed operates so unsatisfactorily as to be practically unavailable. It is obvious "that if the nipper simultaneously grasps a pick of yarn and a pick of hair its jaws will approach'each other only to the extent permitted by the thickness of the yarn, the yarn sequently the jaws will not approach suiiiciently to secure and hold the hair. In my improved nipper I have provided means whereby the jaws will effectively grasp the yarn and the hair. This I accomplish by the following constructions, (see-Figs. 6 and 7:) An inset 15() is formed in the fixed jaw 151 of the nipper.- 152 is a Hat spring-plate secured in the inset so that its top surface lies flush with the gripping-surface of the jaw. 153 is another and deeper inset in the fixed-jaw. The front end of the spring overlies the inset 153. `154 is the movable jaw of the nipper.

The arrangement of the yarn-carrier is such that the yarn is caused to be grasped by the nipper at a point opposite the overhanging end of the spring. As the movable jaw closes upon the fixed jaw the yarn. depresses the overhanging end of the spring, thereby ,enabling the gripping-surface of the movablev jaw to approach sufficiently near to the gripping-surface of the fixed jaw to cause a strand of hair to be effectively grasped. The movable jaw is provided with the usual cam 155 and the usual spring 156, tending to move the Lmovable" jaw into its closed position.

j Having now fully described my invention,

holding-WW1,

Con-

what I claim, and desire to protect by Letters Patent, is-

1. In a loom, in combination, a hairtrough, a selector, a yarn-carrier, a nipper adapted to grasp an end of hair presented by the selector and an end of yarn presented by the yarn-carrier and pull them across the loom, the take-up mechanism, means to render the take-up mechanism inoperative, a

finger adapted when engaged by weft to be actuated to render said means inoperative, said nger being out of line of the hair in the movement of the latter across the loom, and means to actuatethe yarn-carrier to cause across the loom to engage said linger.

2. In a loom, in combination, a nipper adapted to grasp an end of weft and pull it across thel loom, a yarn-carrier adapted to .the yarn fed therefrom in its movement y present an end of yarn to the nipper, the 5 take-up mechanism, means to render the take-up mechanism inoperative, and beltshifting mechanism actuatedl by said means.

3. In a loom, in combination, a nipper adapted. to grasp an end of weft and pull it across lthe loom, a yarn-carrier adapted to present an end of yarn to the nipper, the crank-shaft, belt-shifting mechanism, a lever adapted to be moved out of operative position by the yarn pulled across the loom by the nipper, means operated by the shaft `to operate said lever when the latter is not so moved out of operative position, and mechanism interposed between the lever and the belt-shifting mechanism whose operation is controlled by the operation of the leven 4. In a loom, in combination,'a nipper adapted to grasp an end of weft and pull it across the loom, a yarn-carrier adapted to present an end of yarn to the nipper, beltshifting mechanism, and means to operate the belt-shifting mechanism adapted to be operated when the nipper fails to grasp, an end of yarn a definite number of consecutive times. A

5. In a loom, in combination, a nipper adapted to grasp an end of weft vand pull it across the loom, a yarn-carrier adapted to IOC present an end ofyarn to the nipper, the take-up mechanism, the crank-shaft, con- I nections therefrom to the take-up mechanism adapted to render the latter inoperative, a-

lever included in said connections adapted to be moved by the yarn pulled across the loom by the nipper and thereby actuated to render said connections inoperative, belt-shifting mechanism, and means actuated by said connections to operate Asaid belt-shifting mechanism.

6. In a loom, in combination, a` nipper adapted to grasp an end of weft land pull it across the loom, a yarn-carrienadapted to present an end of yarn to the nipper, the take-up mechanism, a ratchet-wheehfanlactuating-pawl therefor, a holding-pawl therefor, the crank-shaft, connections from the shaft to the actuating-pawl adapted to be operated When the nipper fails to insert an end of yarn, connections from the actuatingpaWl to the take-up mechanism adapted When operatedto render the take-up mechanism inoperative, belt-shifting mechanism, and connections from the ratchet-Wheel adapted, When the ratchet-Wheel is turned a determinate distance, to engage and operate the belt-shifting mechanism.

7. In a loom, in combination, a nipper adapted to grasp an end of Weft and pull it across the loom, a yarn-carrier adapted to present an end of yarn to the nipper, a ratchet-Wheel, an actuating-pawl therefor, the crank-shaft, connections from the shaft to the actuating-paWl adapted to be operated When the nipper fails to insert an end of yarn, a holding-pawl, means to release the holding-pawl after the actuating-pawl engages the ratchet and to return the holdingpaWl into operative position before the actuating-pawl disengages, a spring adapted to return the ratchet to its normal position When engaged by neither of said pawls, beltshifting mechanism, and connections from the ratchet adapted, when the latter is turned a determinate distance, to engage and operate the belt-shifting mechanism.

8. In a loom, in combination, a nipper adapted to grasp an end of Weft and pull it across the loom, a yarn-carrier adapted. to present an end of yarn to the nipper, a ratchet-Wheel, an actuating-pawl therefor, the crank-shaft, connections from the crankshaft to the actuating-pawl adapted to be operated When the nipper fails to insert an end of yarn, a holding-pawl, means to release the holding-pawl after the actuating-paw] engages the ratchet and to return the holdingpaWl into operative position before the actuating-pawl disengages, a lever actuated by the ratchet, belt-shifting mechanism, an ear thereon, the lay, a shaft turning in bearings in the lay, a lug thereon, connections between said lever and shaft, and a. spring adapted to return the ratchet and lever to their normal positions When the ratchet is engaged by neither of said paWls, whereby when the ratchet is turned a determinate distance said lever and its connections turn the last-named shaft a distance sufficient to cause said lug to engage said ear.

9; In a loom, in combination, a nipper adapted to grasp an end of Weft and pull it across the loom, a yarn-carrier adapted to present an end of yarn to the nipper, a ratchet- Wheel, an actuating-pawl therefor, the crankshaft, connections from the shaft to the actuating-paWl adapted to be operated when the nipper fails to insert an end of yarn, a holding-paWl, connections from the shaft to the holding-pawl adapted to release the same after the actuating-paWl engages the ratchet and return the holding-pawl into operative position before the actuating-pawl disengages, belt-shifting mechanism and connections from the ratchet adapted, when the latter is turned a determinate distance, to engage and operate the belt-shifting mechanism.

l0. In a loom, in combination, a nipper adapted to grasp an end of weft and pull it across the loom, a yarn-carrier adapted to present an end of yarn to the nipper, a lever, the crank-shaft, connections from the shaft to the leveradapted to be operated when the nipper fails to insert an end of yarn, the takeup mechanism, connection thereto from the lever adapted When operated by the lever to render the take-up mechanism inoperative, a second lever, connections from the first lever to the second lever to move the latter when the former is operated, means to hold the second lever in the position to Which it is moved by the first lever, belt-shifting mechanism, and connections from the second lever to the belt-shifting mechanism whereby the former operates the latter.

1l. In a loom, in combination, a nip )er adapted to grasp an end of weft and pull it across the loom, a yarn-carrier adapted to present an end of yarn to the nipper, a beltshifting control-lever, a belt-shifting lever operated by the latter, a tripping-lever adapted to operate the belt-shifting control-lever, an ear on the tri ping-lever, a shaft on the lay, a lug on the s iaft adapted when the shaft is turned a predetermined extent to move said lug into position to engage the ear in the movement of the lay, and mechanism connected With said shaft and adapted to be operated When the nipper fails to insert an end of yarn a predetermined number of consecutive times.

12. In a loom, in combination, a nip )er adapted to grasp an end of weft and pull it across the loom, a yarn-carrier adapted to present an end of yarn to the nipper, the take- -up mechanism, a ratchet-Wheel, an actuatingpaWl therefor, a holding-pawl therefor, the crank-shaft, connections from the shaft to the actuating-pand adapted to be operated when the nipper fails to insert an end of yarn, connections from the actuating-pawl to the takeup mechanism adapted when operated to render the take-up mechanism inoperative, beltshifting mechanism, connections from the ratchet-Wheel adapted, when the ratchet- Wheel is turned a determinate distance, to engage and operate the belt-shifting mechanism, mechanism to release the holding-pawl, and means, operating With the belt-shifting mechanism, to actuate the holding-panflrelease mechanism.

13. In a loom, in combination, a nip )er adapted to grasp an end of weft and pull it across the loom, a yarn-carrier adapted to present an end of yarn to the nipper, a ratchet- IOO I-IO

wheel, an actuating pawl therefor, the crank-shaft, connections from the shaft to the actuating-pawl adapted to be operated when the nipper fails to insert an end of yarn,

a holding-pawl, means to release the holdingpaWl after the actuating-pawl engages the ratchet and toreturn the holding-pawl into operativeposition before the actuating-pawl disengages, a spring adapted to return the ratchet to its normal position when engaged by neither of said pawls, belt-shifting mechanism, connections from the ratchet adapted, when the latter is turned a determinate distance, to engage and operate the beltshifting mechanism, andmeans, operating with the belt-shifting mechanism, to actuate the means controlling the holding-pawl and thereb release said paWl. c

14. n a loom, in combination, a nip er adapted to grasp an end of weft and pul it across the loom, a yarn-carrier adapted to prsent an end-of yarn to the nipper, a

rachet-wheel, an actuating-pawl therefor, the crank-shaft, connections from the shaft tothe actuating-pawl adapted to be operated when the nipper fails to insert an end of yarn, a holding-pawl, connections from the shaft to the Aholding-pawl adapted to release the same after the actuating-pawl engages the ratchet and return the holding-pawl into operative position before the actuating-pawl disengages, belt-shifting mechanism, connections from the ratchet adapted, when the latter is turned a determinate distance, to engage and operate the belt-shifting mechanism, and means, operating with the beltshifting mechanism, to engage the connections from the shaft to the holding-pawl, thereby releasing said pawl.

15. In a loom, in combination, a nipper adapted to grasp an end of weft and pull it vacross the loom, a yarn-carrier adapted 'to present an end of yarn to the nipper, a lever,

- vthe crank-shaft, connections from the shaft to the lever adapted to be operated when the nipper fails to insertan end of yarn, the takeup mechanism, connections thereto from the lever adapted when operated-by the lever to render the take-up mechanism inoperative, a second lever, connections from the first lever to the second lever to move the latter when the former is operated, means to hold the secmoved by the first ever, belt-shifting mechmove the holding means for the second lever into inoperative position.

16. In a loom, in combination, a nip er adapted to grasp an end of weft and pul it across the loom, a yarn-carrier adapted to present an end of yarn to the nipper, the takeom the actuating-pawl to the engage and operate the belt-shifting mechanism, a cam on said shaft, a lever actuated by the cam, connections from the lever to the holding-pawl adapted, when operated by the lever, to release said paWl, and a second lever operating with the belt-shifting mechanism and adapted to engage and operate the first leveil, thereby effecting the release of said paw c 17. In a loom, in combination, a yarn-carrier, a finger, a ni per adapted to grasp an end of yarn and pu l it across the loom, means to lift said yarn-carrier at the warp-inserting movement of the nip er, thereby causing the yarn to engage and ift the finger, the takeup mechanism, and means controlled by the finger to render the take-up mechanism inoperative when the linger is not lifted.

18. In a loom, in combination, a yarn-carrier, a finger, a ni per adapted to grasp an end of yarn and pull it across the loom, a cam, connections therefrom to the yarn-carrier adapted to -lift the same at the warp-inserting movement of the nipper, thereby causing the yarn to engage and lift the finger, a lever operated by the finger, the take-up mechanism, the crank-shaft, and connections including said lever from the crank-shaft to the take-up mechanism to render the latter inoperative when said finger is not lifted.

19. A nipper for haircloth-looms comprising, in combination, a fixed jaw, a springpressed movable jaw, one of said jaws having a recess, and a spring-plate overlying said recess and separated therefrom by a space.

20. A nip er for haircloth-looms comprising, in combination, a fixed jaw, a springpressed movable jawfone of said jaws having two recesses of different depths, and a springplate of a thickness substantially equal to the depth of the shallower of said recesses and inset therein and overlying the deeper recess.

21. A nipper for haircloth-looms comprising, in combination, two jaws, anda springplate secured in the gripping-face of one of said jaws.

In testimony of which invention I have hereunto set my hand, at Philadelphia, on this 30th day of May, 1905.

' GEORGE S. COX.

Witnesses: A

M. M. HAMILTON,` T. B. Woon.

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