US806204A - Pile-fabric-cutting machine. - Google Patents

Description

PAIENTIID DBC. 5, 1905.

y B. SIANSPIBLD. n

PILE FABRIC CUTTING MACHINE.

APPLIOATION IILBI) JUNE 18,1902.`

4 SHEETS-SHEET 1.

JN VEN T o 1i En wmr: e5 Tzvszz. i

w WITNEssEs .I

TTO NEY.

CMMI@ l N0. 806,204. PATENTED DEG. 5,V 1905.

E. STANSFIELD.

PILEPABR10 CUTTING MACHINE. APPLICATION FILED JUNE 18,1902.

4 SHEETS-SHEET 2.

`N0. 806;204L i PATBNTBD DEG. 5, 1905.

I l E. STANSFIELD.

PILE` FABRIG CUTTING MACHINE.

APPLICATION FILED TUNE 18,1902.

4SHBBTS--SHEET 3.

INVENTozT No. 800,204. PATENTED DB0. 5, 1905.

E. STANSPIELD.

' PILE FABRIC CUTTING MLCIVIIITE. APPLIGATION FILED JUNE 10,1002.

4 sHBsTs-SHEET 4.

WfTNE am@ Y srATEs UIA EDWARD sTANsFiELD, OE YORK MILLS., NEW YORK,v AssIeNoR To `IEE NEW 'YOEK MILLS, or NEW KOEK MILLS, NEW YOEK.

PILE-FABlcr-CUTTiNc-i MACHINE'.

yMills,-` in the county of Oneida and State of.,`

v:New York,-have invented certain new and useful Improvements in Pile-Fabric-Gutting Maf chines, of which the followingis a specicaton, referencebeing had therein to the acf companyingv drawings. e l

' My inventionrelates machines 4which are used 'in themanufacture of pile fabrics-such as velvet, corduroy,

, &'c.-for the cutting of the race or pile in the finishing ofthe product, my invention relat-l ing particularly to a stop-motion for such machines; andI declare that the following -is a full, clear, concise,and exactdescription thereof, sui'iicient to enabley any one skilled in the `art to which it pertainsto make, construct,

and use the same, reference being had to the accompanying` drawings, in which like letters kand figures refer to like parts'. Figure 1 is a side view of such a machine with my improvement thereon,` showinga portion v in section. Fig. 2 is' a planvie-w-of a portion -of themechanism shown in Fig. 1.

asection view from theside .opposite to that shown `in Fig. 1.` Fig.. 4:. is aV detail v iew of a l 'portion of the mechanism shown in Fig. 3.

Fig..5 is a detail viewl of the upper portion of is on the farther side ofthe machine. Fig.6 is a View vsimilar to Fig. 5, showing a differalso the case .with Fig. 7. vFig. 8 is a plan fview of a'partof the machine `withmyimprovement attached. f

In the manufacture ofgoods, such'y as vel.`

veteen and other pile fabrics, .the cloth ris made with what is called a ground, on whichare formed. parallel ribsj'orv races, which give a ridged 'appearance to the surface of the cloth,-

i- .'theportions yof the* v`material which are 'contained in the ribs being separated from the ground of the fabric and presenting something ofk a space between the rib and the bodyor ground. In manufacturing these classes of goods the rib which is thus formed is cut open,

I --the nished surface'.`

l Specification of Letters Patent. Application ne@ June 18,1992. serai-No.11a16z.

to an improvement in be properly continued. The purpose of my devicevv particularly is Fig.`3 is ,power-pulley B and: transmitting the power .-to the knife-shaft c, on which pulley C is Y idle pulley ic.

the machine, showing my, improvement at-v tached `thereon and showingthat part G-whichent position `of partxof` the mechanism, as yis i Patented Dec. 5,1905.

the cloth that as it passes thereunder they cut through the threads which form the ribs, but

do not yreach the ground of the cloth. The drawings also disclose what may be termed fguid'es, ywhich arel forced intothe ribs and separate their threads from'the ground of the cloth and through which guides the knives are designed to present `their cutting edges to the ribs.; It occurs from time toy time that the guides in' which these knives work are misdirectedv when they are thrust forward in the ribor pile of the fabric; and pierce ,through the groundor the pile of the cloth, whichcondition'must beremedied before the work can automatically to stop the machine whenever' any one ofthe guides in` which the knives play slips in ,any direction through the fabric or out of its proper place ofaction.- e Referringtothe figures more in detail, A represents the frame of such a machine as I have mentioned. On this machine, is power'- pulley B, which is suitably seated on powershaft U is a pulley carrying the belt from the seated. On the knife-shaft c is also seated an D is'what may be termzedia f winding-pulley, to which power is transmitted from the knifeshaft by an ordinary pulley tand belt t'. 'lfhis winding-pulley is seated on shaft 0l. and carries fthe windingdrum d', on whichv Athe cloth is 4received after it has 'been worked.

E, E', E, e, and e are turn-bars which are i seated on the frame'y A, either Xedlyor pivf otally, as'required, and ywhose oiiiceis tojgive suflicient tension lto the-cloth while passing under the knives. j F, F', F, and fk are winding-cylinders which are providedwith pins on theirsurface for holding the cloth as it passes over' ,Y

them, with the exception, however, of thecylinder j', on which the cloth is first placedwhen it is brought `to the-machine.

109 These are sev- 4erally operated by proper mechanism, which SDO SllOWD in thedrawings, but which, with* ilysupply-.and adjust.

' G is -f-austoprarmfwhich is' pivotallysupother ordinary partsany mechanic can readported on standard gfupon the frame A. l )nev f end of thisf-stop-arm bearsa slotted stop' -f'1 n;`

' lingers m m., thereby passing` the belt from which extends from the front of the machine ger G", adjustably secured thereto by the bolt g. From the other end of the stop-arm hangs loosely on the pivot g" the stop-bar Gr', which is enlarged at its lower end for the reasons hereinafter shown. The stop-arm G is so supported that when the stop-finger is released from its support that end will fall and the end which supports the stop-bar will rlse.

H is a lug pinion or wheel with an irregular periphery, which is seated on vshaft f, which is revolved by proper operating mechanism to the right as it appears in Fig. l. I is a shifting-lever which is secured at its lower end to the frame in such manner that the upper end tends to press laterally'toward the frame of the machine. When the parts are set, it is held outwardly by engagement in the notch Z in plate L. When released by the action of the stop-bar G', it flies to the inner end of the opening in plate L.

J is a contact-arm having a handle j and at the left in Fig. 1 toward the rear parallel with the frame and then projects at a right angle outwardlyV from the frame, as shown particularly in Fig. 2. Attached to this arm is a brake-bar K, which is seated on coilspring'le, attached to the frame. It carries at its lower end the brake K', whichy is adapted to engage and stop the winding-pulley D. It is lnotched near its upper end at le to rest on plate L when the brake is away from wheel D.

L is a side plate secured to the frame A and projecting therefrom laterally and horizontally, and it is provided with an open space Z, in which there is a step or notch l.

M is a shifting-arm with fingers mm, which is Xedly attached to the upper end of the shifting-lever I. By means of this shiftingarm the driving-belt is slipped on the idle pulley from the driver, or vice versa.

When the stop-finger Gr is released from the support which holds it up, that end of the stop-arm Gr drops downwardly and the stopbar G rises, so as to be wedged between the contact-arm J, where it is bent outwardly, and the lug-pinion H. As the lug-pinion turns its edge crowds against the enlarged portion of the stop-bar G', which results in crowding the contact-arm and handle forwardly. The contact-arm being between the stop-bar and the shifting-lever,tlie same interference pushes the shifting-lever forward, and it escapes from the notch Z in the side of the plate L, which held it outwardly from the frameI of the machine, so ythat the shiftinglever iiies toward the frame of the machine and `carries with it the shifting-arm M and the driver to the idle pulley. The same forward movement of the contact-arm pushes forward the brake-bar K from its engagement on plate L and lbrings the brake K l against the winding-pulley D under the tension of the spring It on the brake-bar.

N is a series of thrust-bars which are carried in the supports n, ln., in which they are permitted to slide back and forth freely. At one end they are rounded, as at N, and at the other end N they are headed or upset.

O is a spur-wheel having spurs 0 0 and which is keyed or splined on spur-shaft O' and which is actuated by proper mechanism. There are a suitable number of such spurwheels.

P represents knife-guides which are formed, roughly speaking, of a doubled wire, forming two prongs. At butt p the prongs or ends of the wire are connected, leaving a narrow space between the portions of the wire forming the sides of the guide. From that point thewire extends forward, being brought closer together as it approaches the forward end p and being fashioned and polished suitably to travel freely in the rib of the fabric. The knife-guides may be formed of steel, the two ribs or side portions of the doubled wire being easily separable by their elasticity to admit the circular knife. In operation the thrust-bars N are pushed forward by the spurs of the spur-wheels, each spur-wheel pushing one or-more thrust-bars, the spurs being set at different angular positions, so that, for the convenience of the operator, the thrust-bars and knife-guides move one after another, or in sets, and not all at once. This also avoids too great tension of the threads of the rib. The thrust-bars are so wide at the head as to cover and push one or more of the knifeguides. When the thrust-bar is pushed forward by the revolution of the spur-wheel, its headed end strikes the butt of the knife-guides that are opposite to it and pushes the forward end of these knife-guides onward in the rib of the cloth R between the ground 0' and the threads which form the pile or race 7". The cloth in its passage under the knives brings back the knife-guides, which also return the thrust-bars, until the spur again comes in contact with the butt of the thrust-bars, when the guides are again advanced in the ribs. The knives revolving against the direction of the cloth and having their cutting edges confined between the prongs of the knife-guides are coni-ined to cutting each the rib which is brought beneath it by the action of its knifeguide.

Q represents the knives, of which there are a sucient number seated on the knife-shaft c. They are here shown as circular rotary, but may be of any suitable form and operation. The knife-shaft c where it carries the knives is of a convenient diameter and has a longitudinal groove e in that part which carries the knives. Each knife has a corresponding tooth q on its inner periphery, so that as the knifeshaft revolves the knives are carried with it, but are not `held against side movement,

IOO

IIC

.but areffr'eetomove -later'ally'and follow the1 line of the knife-guides. 'A segment is outy off each knife,- thus permitting the-convenient knifeguides to prevent either the knife or guide gettingout of place;

lIi.)

Q," represents rings loosely riding on thev knife-shaft, keepingthe knives properly 'sepa` rated. The knife-guides are supported-'hori- Zontally near the butt bythe guide-.bar S and toward` their `-votherfend, and just beyond the knife they are supported 'on turnbars, which' is'so'disposed-'fas'tol'change` the direction of f the cloth, vkeeping they ground away fromthe" Thearrangemen'tf and operation of-l knives; thesepartsare-su'ch that the knife-guide raises: the threads-fof, the rib above the 'ground and holds "them towardf lth'e v`knife, While at they sannev timefit guides the 'knife, so `that itrcuts in the centerofftherib andY is unable to get voutofY-place;andftheground of the fabric 'is' f carried `awa-y from, thekni-ves.4-` The guidebarand theft'urnebargare suitably supported' ateach-en'd by the-frameA. f 1 1^ cover. the cloth gui'd'ebarprf turn-bar "s, 'I 4 lSom'ei f timesthefpoint-ofthe knife-guidepierces the j body` orl ground 'of the' cloth when i th'atip'art v of, the' cloth is brought underneath-the k'nivesf and-more` thanpthe ribf'o'r4 race'th readsr are cut.- 40V slip'outf of Contact iwithf' theopposite head N guide -b'e bent downwardly: on upwardly-"as kn'ifelguides' should: be remedied at'once,and itis .for-"thevpurpose'of i facilitating this. and

preventing any 'damageftr thev icloth' vb'ythe improper operation 'o f `fthe machinefthatI en1 ployfthe parts hereinafterdescribed'.l

' standards s and .8, which:y are'v seated' on. frame A. (Dnthis baseiboai'dyI secure a cop..

perl forl -lother electricallyzcond-uctive -Lrbas'ei plat`e,--which 'extends'.horizontally from f one ses suitably-i on side of; the machine vto? the "other and over whichf the' fabric passesfon its -way tb the 'base-plate, so that there is at all times contact through the l-ugs-andears between the upper'- and lower'plates. 'This upper plate-rests upon the cloth as it is fed tothe knives.

Upon a convenient support l0", which is secured'to'the fraine A, I place the electromagnet 410, and, at `some convenient place on the machine I locate a battery, as shown at 11.

AFrom one side of the batteryI extend wire 12 to the-electromagnet and` from there (shown byl) to theba'se-plate2. Fromthe other side of the battery'I extend a wire 1-5'to stop-finger support 8, ywhichis shown-in Fig.

5 as' holding up the stop-finger G. L"In Fig. A

64 theselpa-rts are shownV after the stop-finger' support has ybeen withdrawn.,` Upon the' top of this'stop-nger 'support I secure armature 9, 'which is disposed opposit'eto the electromagnet. L j 1 When the pointof the knife-guide slips upwardlyr-or downwardly fromits place inthe" 1rib,^it;strikeslbaseeplate 2 ortop plate 3;"- Bei Y A t i'ngfsupport/ed on theguide-bar S, the moment VI-n' operation it'sometimesfhappensi'thatithef the point of th'efknife-guidefstrikes either the dtopplate" r.` basep-platecthe -ielectrornagnetzis xcitd; lso as to lattract the; armatureza-onfthe VT1s'topelinge'r support? which then 1' perlniitsftlie --stopa'rrniGr to swing .and brings the;v yl'ower 'end ofthe stopL-barf Gr ibetweenthecontatf-arm J and the lug-pinion H, the resultof'which Athas already been .explained as stopping :the Smal" chinerfyif-` Ifz it'should-'happen thatthe'knife- L guide which isi displaced does .not vrest "upon -.the guide-.bar S, still other knife-'guides rest thereon," and: thef electrccurrent fis, carriedv .from the'guide-bar through thefother knifee "guid es 1and .knives and knife-"shaft to .the disf #placed knifefgu-ide; so thatA the fdi'splacing vof ously stops the machine.

a any. single knife-guide, asfshown,VY instan'tane` To provdefforotheii 'displacerinen'tssof the' means'of'properlyiinsulated 'bolts' passing "through slots in the connectedfpartsand havling.'nntjsfthereon,I aconstructionf Well-known a metallic -or otherlelectrically*conductivel strip Lf5, whi'ch isf` separated from the guide-` 'barby -insulatirjni` From this strip Ipass Tand-"linderstoodb v-those Iskilled"i'nfthea'rt, n

'a wire'14itoithefbase-plate 2. 1 rIl'renpper edge-I Of-'the'fstrip 5 is 'slightly lower than the upper edge ofthe guide-barst: Incasef'the knifei guide is displaced, as fshdwnA-finiFig.' 7', it is crowded fby'very'little displacementy into the position there' shown in fulllinesfthe result l of which-- isv to complete thecircuit and attract Ytheistop-finger support tothe electromagnet,

and.4 thus s'topithe machine. The same'result'l follows-even if the knifefguide is' cro'wded-r 0E f guide-bar S, the current passing throughothe'r upwardly, as shown bythe dotted lines in Fig. 7 or that its butt flies by the opposed head end N of the thrust-bar, as in Fig. 6. For such a case I provide the following parts: At the end of the base-plate 2 is a bracket 6, which is pivoted on the base-plate at'6'. A bracket is shown at each endof the base-plate. They are pivoted so that they and their parts can be turned up and back out of the way when the operator wishes to get at the knives and the adjacent parts. These -brackets extend forwardly over the knives and terminate in two arms, which carry the adjustable strips 7 and 7', which are of electrically-conductive material, as are also the brackets. The adjustment is by means of bolts and nuts passing through slots in the connected parts. The strips 7 and 7 extend from one side of the machine to the other.

In case the knife-guide is bent upwardly, as shown by the dotted lines in Fig. 7, it comes in contact with the strip 7 andthe electric current is carried, las before, from the guide-bar through knife-guides, which rest upon it, through the knives and the displacedb knife-guide to the-strip 7', so that the circuit is completed and the stop-.finger support then withdrawn. In case the butt of the knife guide slipsover head N', as shown in Fig. 6, it will instantly strike the strip 7, when the circuit will be completed in the ymanner described and the mechanism be brought to a stop.

By means of the parts and the arrangement of the parts whichI have shown and which may be suitably located, adjusted, and duplicated I have surrounded the knife-guides with a series of guards which will instantly detect any displacement of any of the knife-guides, so that the instant any such displacement occurs the machine will be brought to a stand and the knife-guide-may be restored to its proper place.

I do not limit myself to the construction as illustrated, as changes and modifications may be made in the device without departing from the spirit of my invention. Y

Having described my invention, what I claim as new, and desire to secure by Letters Patent, isf l. In a machine of the character described, a base-plate, a top plate electric contact therewith, the plates being adapted to permit the interpassage of the clhth lto the knives, knives, a stop-finger support, an armature thereon, knife-guides and an electric circuit adaptedto be completed on contact of a knife# guide with the base or the top plate, in combination, substantially as set forth.

2. In a machine of the character described, knife'guides, a vguide-bar supporting the knife-guides, an electrically-conductive strip supported on the guide bar and insulated therefrom, electrically-conductive plates connected to pass an electric current and adapted to permit interpassage of cloth to the knives, knives, an electric connection between the strip and the plates, an electromagnet, a stopiinger support oppositely disposed thereto and provided with an armature oppositely disposed to the electromagnet, and a battery with connections between it, the guide-bar and through the electromagnet to the base-plate whereby the circuit is completed on contact of a knifeguide with the electrically-conductive strip, in combination, substantially as set forth.

3. In a machine of the character described, an electrically-conductive baseplate,a bracket pivotally seated thereon terminating in arms, strips supported by the arms, the bracket, arms and strips being electrically conductive, a guide-bar supporting the knifeguides,knife guides, an electromagnet, a stop-finger support provided with an armature oppositely disposed to the electromagnet, a battery, electrical connection between the battery, the electromagnet, the base-plate, the armsand the guide-bar whereby the electric circuit is completed on contact of a knife-guide with either of the bracket-supported strips, in combination, substantially as set forth.

4:. In a machine for cutting the pile of a fabric, the combination of a shaft, a series of rotary cutting-knives mounted on said shaft, a

series of knife-guides constructed with flexible ribs, one being on each side of each knife and united before and behind each knife, mechanism for moving the knife-guides forward in the pile of the fabric, a metal plate mounted to rest on the surface of the pile of the fabric and engage the knife-guides when the same pierce the pile of the fabric, an electric battery` an electromagnet electrically connected to the plate and to the battery whereby when one or more of the knife guides project through the fabric into contact with themetal plate the circuit is established and the mechanismconnected therewith for automatically arresting the movement of the fabric is put in operation, and mechanism adapted to stop the machine on completion of the circuit, substantially as set forth.

5. In a machine for cutting the pile of a fabric, the combination of aseries of rotary cutting-knives, a series of metal knife-guides constructed to runin the pile of the fabric, and in which the knives rotate, a metal plate supported on the fabric, an open electric circuit, whereby when one or more .of the knifeguides is brought in contact with the metal plate the electric circuit is established, a magnet, lan armature connected with the stop-motionwithin the field of the magnet for automatically arresting the movement of the fabric when the electric connection is established and a stop-motion, substantially as set forth.

6. In a machine for cutting the pile of a fabric, the combination of aseries of rotary cutting-knives, aseries of metal knife-guides between which the knives rotate constructed to IOO ISO

. ric, the combination of a seriesl of rotary c utting-knives, a series of metal knife-guides between which the knives rotate constructed to run in the pile'of the fabric and i in Contact?.

with the knives, an electrically-conductive knife-'guide-snpporting bar,.an insulated electrically-conductive stript-located slightly.4 be- 5 low the `level of the knife-guides, an electromagnet electrically connected `tothe support-- ing-bar andto the saidinsul'ate rlp-ganarmature connected to the:stpjgineehaismronthe machine `and within the" field ofathe electrovIo magnet `for arrestingthe Vmovement of the lfalo`ric`when the knife-guide comes in .contact with theinsulated strip r and electric connection isestablished. thereby, andl stopmechanism, substantially as set forth.

7 Inca machine for cutting'the pileof a fabrun in the pile of the fabric andin contact z'o .with the knives',a n adjustableinsulated metal strip located slightly belowthe levelof the knife-guides, an electromagnet electrically .connected to the insulated metal stripand to an electric circuit, said electric circuit, an'l 2,5 armature` connected vto the stopmechanism of .the machine'and vwithin the field of the electrot-magnetl for automatically. arrestingthe movement of the rfabric Whenaknife-'guide `comes in contact with the vinsulated metal 3o strip. and,electricv connection is .established thereby, and stop. mechanism, substantially as set forth.

, "8. Ina machinefor'cutting the pileof a fabf g ric, the combination of a series of rotary cut- 3 5 yting-knives, a seriesof metal knife-guides between and incontact-,with whichv the knives rotate constructed to runin lthe pile'of. the

fabric, a metalw strip .located above the Vknifeguioles, an electromagnet electrically-k con-y 4 0 nected to the strip and an electric circuit, said n electric circuit, an armature in the field of the '.magnet, which 'actuatesthe stop-motionffon arresting the movement/of the-fabric when` .one or moreof theknife-guides arev brought v45,in contact with the metal strip vwhereby the movement of the'fabric is automatically arrested, anda stop-motion, substantially as seti fforth.

9. lIn a mach'ne for cutting .thepile of afab- I. ric, the combination ofacseriesofrotary cut- -vting-knives, aseriesof metal knife-guides loe-v tween and in contact withtwhich thelinives yrotate constructed tokrun in the pileofthe fabric, ametal strip located above the knifeguides, an electric circuit, anelectromagnet ,electrically l connected` to the strip andin4 said Aelectric circuit, connected A to actuate the stopmotion and a`V stop-motion.` for` larresti-ng y thel movementof the fabric when one or more of 69 .the knife-guides' are brought incontact .with

themetal strip whereby the'movement ofthe v jfabric is automatically arrested, substantially :as set forth.;

10.,.'In a machine. forcutting cfa d Yfabricfthe combination of ,a series off rotary,

cutting-knives, a series of metal knife-guides between and in Contact with Which'the knives frotate constructedlto run in the pile of the .-fabrlc, a metal strip located above and to the rear of ythe knife-guides, an electromagnet electrically connected. to the metal stripand to an open electric crcuit'vvhereby when the rear. or heel portion of one/or more of the metal knife-guides are brought in contact with the metal strip an electric circuit is established, a stop-motion, said electric circuit and and within the field of the electromagnet whereby the .movement of the .fabric isfa'utomatically. arrested when the electric circuit is established, substantially as set forth,

V'11'. In a machine for cutting. the pile of a fabric, the combination of a series of rotary cutting-knives, aseries ofmetal knife-guides between and in contact with which the knives rotate constructed to run in the pile of the fabric, an vadjustable metal strip located `above and tothe rear ofv theknife-guides, an electromagnet electrically connected tothe A.ad-Y I justable `metal' strip and to an open electric circuit whereby when the rear r heel portion of one or more of the metal knife-guides are` .brought in *contact with the adjustable metal strip an velectric circuitis established, said electric circuit,'astopmotion and an arma- 95 ture connected .to thestop-motionand within the ield'of .the magnet whereby the movement of the fabric is automaticallyjarrested :when the electric circuit is established, substantially as set forth. f

12. In a machine'for cutting the pileof a fabric, .a 'series of cutting-knives, a yseries. of,

guides adaptedy laterally to limit thecuttingvlinives'and in' contact therewith and construct- .posed opposite to the .stop-motion armature,

. an open electric circuit connecting the adjustable strips and plates whereby. the' electricl .circuit is. established oncontact of oneor more I I5 l yof the knife-guides. with one or more: ofthe metallicstrips or plates, and theoperation of .the machineis suspended, in combination', sub.- stantiallyas shown.

Ina ma'chinefor cutting; the .pilelof a' izo fabric, a series .of cutting-knives., aseries of n guides adaptedlaterally to limit andguide the Vcuttinghuives andv in.. contact,A therewithl and constructed to advance with 'theoperatifon of f thema'chinefin the pile of the'fabjric; metal- 125 l lic strips or plates located. to engagewith'any' .knife-guideupon its displacement,a stop-mof- .tion provided with an ...armatura-.an electro- ,magnet disposedopp'osite to. the 'stop-motion' armenischen@ electric Qireit @indemne 13- anarmature connected to the stop-motion the strips or plates whereby the electric Circuit is established on. contact by one or more of the knife-guides with one or more of thel metallic electrically-connected strips or plates, combined substantially as set forth.

14. In a machine of the character described provided with knives and knife-guides, electrically-conductive plates adjacent to the 'fabric and to the knife-guides, an electricallyoperative stop mechanism, an electric circuit adapted on contact of a knife-guide with a plate to operate the stop mechanism, in combination, substantially as described.

15. In a machine of the character described provided with electrically-conductive knives and knifeguides, an electrically-conductive guide-bar supporting the knife-guid es,an open electric circuit connected thereto, electricallyconductive plates adjacent to the knife-guides and connected with the circuit, and a stopmotion adapted to stop the machine on contact between a knife-guide and a plate, in combination, substantially as described.

16. In a machine of the character described, knife-guides,a guide-bar supporting the knifeguides, an electrically-conductive strip supported on the guide-bar and insulated therefrom, knives, an electromagnet, a stop-finger support provided with an armature oppositely disposed to the electromagnet, and a battery with connections between it, the guide-bar and through the electromagnet to the strip whereby the circuit is completed on contact of a knife-guide with the electrically-conductive strip, in combination, substantially as set forth.

17. In a machine of the character described provided with electrically-conductive knives, knife-guides 'and a guide-supporting bar, an electrically-conductive insulated strip adjacent to the knife-guides, an electrically-operative stop mechanism, an open electric circuit embracing the guide-supporting bar and the insulated strip and electrically actuating the stop mechanism upon the completion of the electric circuit on Contact of a knifeguide with the insulated strip, thus stopping the machine, in combination, substantially as described.

18. In amachine of the character described, knives, knife-guides, aguide-supporting bar, an insulated strip adjacent to the knife-guides, the said parts being electrically conductive, an electrically-operated stop mechanism and an open electric circuit embracing the said parts and completed on contact of a knifeguide With the insulated strip to operate the stop mechanism, in combination, substantially as shown.

19. In a machine of the character described provided with knives and knife guides, bracket-supported strips adjacent to the knifeguides, brackets, the said parts being electrically conductive, an electrically-operative stop mechanism, electrical connections embracing the knife-guides and the strips where-s by the stop mechanism is operated on contact of aknife-'guide with either of the strips, in combination, substantially as described.

20. In a machine for cutting the pile of a fabric, the combination of a shaft, a series of rotary cutting-knives mounted on said shaft, a series of knife-guides constructed with a rib in contact with each face of its knife and united before and behind each knife, mechanism for moving the knife-guides forward in the pile of the fabric, a metal plate adjacent to the fabric and adapted to engage the knife-guides when the same pierce the pile of the fabric, an electric battery, an electromagnet electrically connected to the plate and to the battery whereby when one or more of the knifeguides project through the fabric into contact with the metal plate the circuit is established and the mechanism connected therewith for automatically arresting the movement of the fabric is put in operation, mechanism adapted to stop the machine on completion of the circuit, substantially as set forth.

21 In a machine for cutting the pile of afabric, the combination of a series of rotary cutting-knives, a series of metal knife-guides constructed to run in the pile of the fabric and in which the knives rotate, a metal plate adjacent to the fabric, an electromagnet connected to the metal plate and adapted to receive an electric current whereby when one or more of the knife-guides is brought in contact with the metal plate the electric circuit is established, said electric circuit, an armature connected with the stop-motion for automatically arresting the movement of the fabric when the electric connection is established and a stop-motion, substantially as set forth.

22. In a machine of the character described provided with knives, knife-guides and knifeguide-supporting means, the said parts being electrically conductive, electrically-conductive strips or plates located to engage with any knife-guide upon its displacement, an electrically-operative stop mechanism, an open electric circuit embracing such parts adapted to be completed on contact of any knife-guide with any of said strips or plates to operate the stop mechanism, in combination, substantially as described.

23. .In a machine of the character described, provided with electrically-conductive knives, knife-guides and knife-guide-supporting bar, an open electric circuit 'connected thereto, electrically-conductive strips supported adjacent to the knife-guides and a stop-motion whereby on contact of a knife-guide with a strip the circuit is completed and the stop-motion is operated, substantially as described.

24. In a machine of the character described comprising cutting members and electricallyconductive guiding means normally operative to feed material to the cutting members, an

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'pen electricA circuit comprising a magnet;l a' stopV mechanism comprising -an armature mounted in thefield ofthe magnet, electricallyconductive' members disposed'adjacent to said guiding means whereby on contact between the latter and the former the circuit is closed'y andthe stopmechanism is operated', substanv tiallyl as described.

25. vIn a machine of the character described provided with knives and knife-guides, electrica-llyeconductive members adjacent to the knife-guides, lan electrically-operative Stop mechanism; an electric circuit adapted on contact of a4 knife-guide with any of said members to operate the stop mechanism, substan tially as described. f f 26. In a pilecutting machine, the combination vo'a guide which enters a 'race of the cloth, an electric circuit which includes said guide as an electrode and means actuated by the closing of said circuit for stopping the ma chine, substantially as described. 27. Ina pile-cu'ttingvmachine, the combination of-a guide which enters a race ofthe cloth,

an electric circuit which includes said guide as an electrode, a companion-electrode withv which said guide will contact to close the circuit whensaid guide' is diverted from its nor mal position, and means actuated by the closing of said'circuit for stopping the machine,

substantiailly'as described. f l

' l28'. In a pile-cutting machine, the combination ofva guide which enters a race of the cloth, an electric circuit whichincludes said guide as an electrode, a companion electrode with which said guide will Acontact to close the ciry cuit when said guide is diverted from its normal 30.l In a pile-cutting machinethe combination of a guide whichenters a race of the cloth, v

an electric circuitwhich includes said guide as an electrode, and a companion electrode arvrangednear the rear of vsaid guide and in a position' Wherethe rear end of said guide, if

diveited'foin its normal' position, will contact therewith andclcse said'circuit, substan-l tially as described.

Ag 31. In a pile-cutting-` machine, ,the combination of a guide which enters a race of the cloth, an electric circuit which includes said guide as' an electrode, and a companion electrode arranged near the'rearend of the guide and in a position where the rear end of the guide, if

bent or sprung downward, will contact therewith and close said circuit, substantially as described. f f

p32,... In a pile-cutting machine, the combination of aguide which enters arace of the cloth, an lelectric circuit which includes said guide as an electrode, al companion electrode with which said guide will contact to close'said circuit when said guide is diverted from its normal position, tight and loose pulleys, a belt-shipper held under tension to Yhold the belt onthe tight pulley, and means actuated by the closing of said electric lcircuit to release said beltshipper and permit-it to shift the belt on the loose pulley, substantially as described.

6oY I 33; In apile-cutting machine, the combina- -v tion of a guide which enters a race of the cloth,

'an electric circuitv which includes said guide as an electrode, a companion electrode wlth f which said guide will contact to close the cir-` cuit when said guide is diverted from its normal I position, aspring-actuated brake held Aout-0f action while the machine is in'operation, and

means actuated bythe closing of said electric circuit forreleasing said brake and permit- `ting it to' act, ysubstantially as described. i

v 34:. In a pile-cutting machine, the combination ofa guide which enters a raceof the cloth, an electricV circuit whichincludes said guide as an electrode, andl a companion electrode arthe vpoint ofthe guide, iffprojected through the face-of the cloth, will contact therewith and close the circuit, said companionelectrode being hinged softhat it may beturned to facilitate the insertion of the clothV in the ma-V chine, substantially as described.

In testimony whereof I atxmy signature in I0 Ipresence of two Witnesses. l e

Witnesses: l l Y ELEANoR T. DEGIORGI, x AGrRAcE C. ELLIS.-V

EDWARD STANSFIELD. f

ranged above the cloth and in `position where l vroc

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