US1037830A - Machine for cementing brush-bristles. - Google Patents

Description

H. P. MoMII-LAN. MACHINE FOB CEMEN'IING BRUSH BRISTLES. AI'PLICATIOR nun) 'A'PR. 20, 1912.

Patentefl Sept. 3, 1912,

4 sH' ETs-smm 1.

H. P. MGMILLAN,

MACHINE ro-n GEMENTING BRUSH BBISTLES.

APPLIOLTIOH'IILED An. 20, 1912.

Patented Sept. 3, 1912.

4 SHEETS-SHEET 4.

was. a

" Be it known that'I, HUGH To-i allabliomi t may coil-ca rn .HUGH, anaemia; q mnn'rrmonn, MARYLAND, AS-SIGNOR m wmmm A. TorTL-E ANn-momroN- ro'rnn, or Bammonn, MAR LnNnzooMeosING THE rmm 1 0 1 matzfintn rdfibmvriairirine Batisn-imrsrms,

I 'Appiication filed Ark-1.20, '191 2.- serial no. 692,210;

- i I hIClIiiJLAN, a. @itiim 0f {the "United States, "residing at (Baltimore, iii-the State of l\larylaiid,.have

invented C 1 t lll1- 11e .'"it11(l useful Improve j inents in Machines for ,Cementing Bru'sh- ;Bristles, of which the following is a speci-' fication; D I

-'l his invent ion relates to" an" ii'npro'ved nia clnn'e forapplying ccmentjufnder pressure to bunches of brushbristles to cementthem to- ,gether. I -=In carrying out tl1e'.1nvent1on the machine 7 shownis designed .tosustain the work, which may consist of a plurality of articles, with that portion exposed-to which the cement.

is to he applied, andito; provide a nozzle whiclrm'ayfbe inovednr advanced at will." wherebythe entire exposed surface for plurality of surfaces may be. subjected to .a.

-'blast whei'eb vto force the cement into'the work in a simple and expeditious manner,

The invention also contemplates "theuse' in some instances of an improved worklicldr'in which the work isset up and then bodily placed in the machine whereby to enable the. cementing to be accomplished rapidly and with certainty.

' \Yit-h thesegeneral ob ects inview and other. objects and advantages as will herein-.

- after -l)8])0lnt0d out the invention is illus- 5o away at the intermediatefportioii"t t a .s'uptrated 'in the accompanying drawings, wherein,

Figure 1, shows an end elevation of a machine embodying the features of the 111- vcntion. Fig. '2, IS a top plan View of the same. Fig. .8, is an enlarged vertical cross section thiongh the machine as if taken ion the line 33 of'Fig.-2.- Fig. 4, shows a detail of the. one of the adjnstable'brackets' for supporting the end of rod which carries the nozzle-carriage. Fig. 5, is anenlargc'd vertical section through the same.,'-t-he secticn being taken on the line 55 ofFig. 4. Fig. 6, showsan' enlarged vertical sectionthrough the work holder work in place thereinf f Figs. .7, 8 and 9.

are respcctivelya topiplan, a side elevation and an end elevation work holder. Fig. .10, showsFa' perspective detail, broken showing a piece of for. holding the work at the ends-when latter isin the workholden.

the

Specification of Letters Bate lit. P'atentd se t.-3, 1912.

" ipqrting blade for sus ainin 'icerr 9f work in the holder, an Fig,

detml p p i eview of-ablock- In the ,drawn'ig the numera-h'l, designates 'aJbed or 'base plate which in thepresent.

instancexis-ofa general rectangularshape,

and from "which there project's vertically an nclosure' frame-which comprises a comparatively long wall, 2, extending longitudinally oii'the base plate and, two rigid end walls, 3, and,4, respectively whichextend atright angles to and from opposite ends otthe; SiliCl' wall,'2. A detachable front plate, 5,

hasits lower edge against ;the base plateand itsends. '6, are seated against thevertical front edges ofthe end walls, 3, and, 4-, and said plate'extends vertically and forms a'front wall of the inclosure, frame. :Suita able screws or bolts, 7, serve to rigidly se-- cure the front plate, 5, .in place against the end walls, 3, and, 4. The end walls, 3, and, are provided with suitable horizontal guideways, 8, shown in-bi'okenlines in Fig; 2. for a purpose presently to be described...

The front plate, 5, is provided with a web,

nally therein when saidposts are turned;

For convenience in turning the posts the I 9,. which extends horizontally bet-ween' the' opposite ends thereof and said web is pro:

through and be made to travel longitudilatter are provided on their'ou'ter ends with hand wheels. 12, and suitable sprocket 9t). heels,.l3. are rigidly attached to the posts in order that theymay turn with the same; .and carry a sprocket chain, 14, which ex:

tends from one sprocket to the'iother in order that both sprockets'may be given-1a like rotation by tlie operation of -turning -oneorlthe other of said hand wheels. This arrangement insures that the jlongitudinal movementof the posts through the bearings, 10, will be alike and to. the "same extent and in the present instance thisplate exsockets are formed.

- vided to enable the slack tends horizontally from'end wall, 3, to end wall, 4, so that its ends may be guided by said two end walls. has' a horizontal web or flange, 16, substantially midway, in the present instance, between its, upper and lower surfaces and at each side-of the center. and between the center and each end, said web or flange, 16 is provided with enlargements, 17, in which These sockets are so placed that-the'inner ends of the screwpcsts, 11, may enter therein. The post-ends that enter the sockets-are smoothcircum fc'rentia'lly and are free of screw threads and the smooth end has a circumferential groove, 18, so that suitable keys orpins', 19,

may be passed through the enlargements, 17, and have a portion of their circumferential surfaces project into the groove, 18, wherebyto secure the clamping plate and posts together but allow rotation of the posts in the sockets. It will thus be obvious that by turning the posts, the latter will travel longitudinally through the bearings, 10, and

move the clamping plate, 15, -toward or from the front plate, 5.

' It is desirable that some 'means be proin the sprocket chain, -14, to be taken up, and to provide for this adjustment, the front plate, 5, has a bearing opening, 20,extending therethrough, as shown in broken lines in Figs. 1 and 2, of the drawings so that a post or'stem, 21, ma extend horizontally therethrough. This post or stem carries an idler, 22,'which in thepresent instance has the form of a sprocket wheel. which has position between the lower and upper stretches of the chain, 14, so that the lower stretch of said chain ma be engaged by the idler to keep the chain taut. As the screw posts, 11, travel horizontally when they are revolved, the sprockets. ISL-carried thereon, and the chain, 14, will also move in or out with the screws. It is therefore necessary to provide some means to enable the idler, 22, to move in or outwith the chain and posts, 11, soas to maintain the idler and sprockets in alineinent. By referring ,to Fig: 1, it will be seen that the inner end of the steem, 21,

means of screws, 27, to the under side of the web, 16, of the clamping plate, 15,.s'o the bracket will hang pendantly from tl 'l -YYQB. A nut, 28, engages the reduced .p men' 23,

oft-he stem and by binding against t hewalls' of. the bracket slot, 24, rigidly seciires fthe stem in the adjusted position. A suitable opening in the bed plate, 1, allows the lower end of the'brackct to move back and forth with the clamping plate.

This clamping plate -Thework to which the cement is 'to be applied is to be clamped indirectly by the plate, 15, and in the case of'cementing bristles in brushes it is desirable, in order that the work may be handled expeditiously and rapidly, to first set up the workin a holder and then place the holder with a number of brush structures in the machine where the cementing operation may be conducted on the several brush structures successivel The detailed construction of the hol er is best illustrated in Figs. 6 to 10 inclusive of the drawings, to which reference will now. be made.

The holder has a stationary vertical wall, 29, a bottom, 30, and amovable wall, 31. In the present-instance the bottom and stationary wall are formed integrally and a slotted arm, 3:2, extends toward the movable wall, 31, so as to for1n a supportxfor suitable pins, 33, that project from the said movable wall into the slot. The slotted arms and pins are preferably located adjacent to the bottom of the holder so the'movable wall will'swing from its lower'edge. At the upper edges, each of walls, 29, and, 31, is provided with a lateral outwardly extending flange, 34, for a purpose presently to be explained and at opposite ends said walls are loosely connected by a bolt, 35, which limits the movement of one wall. .with respect to the other in a direction awe} from each other, but allows the walls to bev drawn toward each other. a Between the flanges and the ends the up per edges of the walls 29,-and, 31, are provided with inclined. beveled or cam surfaces 36, and suitable spring clips have two arms, 37, which are pivotally connected to the walls, 29, and, 31, by means of the bolts, 35, and each arm has an inturned-end', 38, which coa'cts with the surface, 36,'to force the walls inwardly: A'coil 39, is provided in the clip to give the necessary spring pressure to the arms. For convenience in maintaining brushes in an upright'position in the holder there is provided a blade-strip, 40, which seats flat on the bottom, 30, of the holdepand said strip carries a 'vertically-projccting blade, 41, which has a beveled horizontal upper edge, 42, and beveled vertical ends, 4-3; This blade has a substantially,central position betweenthe walls, 29, and, 31, of the holder I and the beveled edges enable the brush bristles to be readily divided by merely passing the flag-ends or free ends thereof across said beveled edges.

Whenthe brushes are placed in the holder the bristlcs. -4t, are preferably encircled at their lnitt-enrls'with a ferrule, 45, and in some instances a plug, 46, is provided at the center of said buttcn ds of the bristles. \Yhen thebrushes in this unsecured but partially assembled condition are placed in the ipmpeo holder 29,: and, o

latter are in a spread-apart; condition=-topermit the! ready. insertion ofthey brush-bristles;

Atfthi's time. the springarms, 37, and" ends, {38,thereof will h'ave the position shown in Figs-1.7,; 8, and 9 .of the. drawings and after 'the brushes are in place, 'suit'ab1e'elasti'c';.end

aty-opposite ends-of the row. Afterthe brushes have been placed. in the holder,.-

= other holder is in the-machine-for'ce'ment-;

.iglng, as will presently beexplained, the

forced downotzer the'hlade, 41, as shown in FigQQ, and' serve to sustain the brushes one or more holders being filled while air.

springarms,', are-turned on the bolts,

:35, the ends, 38, thus being" forced down ,lock' the bristles between said1wall's;

over the -incl1ned, beveled,or cam surfaces,

' 136-," 'andthe walls, 29.;"and ,-.31, are'thereb y moved toward each other to temporarily-- This -;operation results' in th e coiled ends, 39,-of the spring -clamps turning upwardly andthey thus serveas loops'or hand-graspsby which "the holder may-'readily be'hfte'd. 1 The holders with the brushes therein arelifted into the machine'and Ito dothis' with precision and lnsure hest,-'.resul ts, the upper edge of the clamping bar, 15,1and the upperedge of wall, 2, areprovidd with recesses,

49, .and, 50, respectively which receive-the flanges, 34, onthe walls 29,-i1'nd, 31, of the. holder, as bestshown in Fig. 3, of the draw inq. After the holders are in place one-or.

the other of the hand wheels, 12, is' grasped by'. the operatorand turned so as to move the clamping-plate, 15, against the movable wall, 31, ot the holder'and by moving said wall clamp, the bristlesin the holder. .By

providing the beveled upper edge, 12,0.n the blade, -11, the'prcssure on the bristles will be gradually reduced 'fromthe beveled portion up to the-buttrends which is-desirable in the cementing as will presentlyhppean 'llhedevids for forcing'the cement into the bristles will now ,be explained, reference being made particularly-to Figs. 1 to 5',inclusive of the drawings;

A post, 51,, has a screw-threaded lower:

end, 52, see particularly Fig. 5, which screws into tl1'e'bed p-late,'-1', and in the present 1nstance two of these-posts are provided so that oneof them may be located'near one 7 end and the other adjacentlto' the other end of said bed plate.

an annular rigid-collar, 55," thereon which has position above theinpper end of the said a v v A bracket 56,;has atubula-r socket. 57, which fits down over-"the upper end of post,

51 ,an d one-side of the socket is provided with a rerticalslot, 58;- fronr'the oppositesides of which clamping lugs, 5,9, project.

jEach post has 'a screw threaded socket, 53, its tip-per end and a threaded bolt-I 54,enters saidsocket and has each other, thus bindihgor clamping the ,socket about the pqst ;t o -holdlitrigidly thereon, An -openin'g -is provided in the heaf'd.-. 61, is keyed, or otherwisesedurd, on

of the tubular fsoclret," as shown in Fig. 1 5.

. t ed t g-lock the socket. i juste'd positiont qt vided, one at each 'end of the bed-plate,

asupport for a horizontal rod or bar, 61,

which extends from one post to the -other and in-an' elevate position above the wall, 2, of the framed inclosure,

c r ag of rollers,166, which areshaped to conform- .totheQcircumference-oi? the rod, 61, so as'to engage the latter and enable 'the carriage to bereadily movedalong the rod.- carriage has an arm, 67', extending over the work' holder and also over the clamping handle, 68,*which 'is'readily accessible to the operator.

The'arm,;67, has .a'hori'zontal extension, 69, or equivalent device, on-its under side to into a chamber, '7 5, whichis' 'su' pliefi with 'air under pressiireby meansp tube, 7 6, to whichylatter 'a flexible tu sliown) .conne cts.' 4

as'to normally prevent the air-passing from tube 76, through chamber, into pas: sage, 74. end ofthe valve, 77, and keeps "it .s'eated.-

passes through a bearing, in and finally-out through ajstutiing: box, 81.- The. outer end of this stem is provlded with ject-in g arm, 62,? which sus-t-ains a verticalpost, 63,- and astwo .of these posts are pro .55 1, as shown in Figl'Q, they will together form =65, is provided with two sets a This I plate, 15, and its outer end terminates in a (2, passes through jthe' seal-' ya, ipefor A -bolt,"60,fpasses. through-the lug s, 59,2and maybe .t'urned so'as to draw'thelugs toward up er end-ofthe". socket'57, so as tof allow the. bolt, 54, to project there'through a; n l' a i the end of the boltlandihtfthe upper "side I The construct-ion just described enables the tubular socket-and merge to-be vertically; adjusted-onnthejpos't, 51, by simplyturning the bolt,- 5f1, [after ,which the bjolt", 60, may

which a sellling'material, 7 suchas rubber and seats against the endjof passage-{74, so

spring, 7 8, presses; against one- The valve, 77 is provided with a stem, 79,, which extends along the passage, 7,4, then.

the arm,

a 'liead,82-, so that a lever, 83, which is pivof the spring,

the operator may-actuate the valve, 77,.- and allowair to pass to the nozzle. Obviously;

upon rele:-1sin,g, -thelever, 85, thevalve, 77, Wlll be seated by the spring, 78, and the air thus cut oil. I

The arm, 67, pivotally sustains theupper ends oftwo pendant arnis,-817,"one,at each side thereof, and the lowerends of these pendant arms carry 'a-'- horizontal bar, 88, which; has position over'the upper surface of fframewall, 2' and to oneside of theferrules. 45, .which bind the'root-ends of the bristles.' This ban-S8, has a-vertical passage therein in'which a vertical pin, 89, is

inserted and said pin is'adjustably secured ,in said passagebyv means of set bolt, 90,

'I'which passesthrough the bar and binds against 'the pin; By vertically adjusting wthepin, 89, thefrontvertical surface, 91, of the bar may be made to take a position close to but slightly spaced from the side of the-ferrule, .45, as best illustrated in Figs. 1

and-3, for a pleme The extens1on,'69, which is carr ed by and -extends horizontally beneath the arm, 67,

'40: i mg material, 70, and carry a horizontal slot, 94, so that set screws, 95,.n1ay be passed sustains. at eachcnd an arm, 02, and said arms, 92, curve downwardly. below the sealplate 93. The arms each have a horizontal 1 theretlirough into the. ends of the exfrom the wall of the ferrule, 45. After anadjustment of the arms, 92, and'plate, 9 3,

.tension, 69, and thereby provide foran'adjustment of said arms, 92, and plate, 93, whereby the latter may be moved toward or has been made the same are rigidly secured in the adjusted position and will retain that position with respect to the arin, 67, and move with the latter.

.From the. foregoing explanation it will be understood that the bar, 88,- has position .slightly spaced. from but at oneside of the ferrule and that plate, 93, will have position ,at-the other or opposite side of the ferrule but. also slightly spaced from thelatter. It will thus be seen that the bar and plate -merelv'form-vertical stop walls at opposite sides bttheferrule but being spaced slightly from the ferrule walls will allow the latter to yield slightly outwardlybefore they come in contact. with and are stopped bv said bar purpose which will presently be and plate. In no sense. therefore are the bar and plate a clamp because they do not en age and. clamp the ferrulewalls'to preventends, is placed in the work holder and the latter seated in the machine, the hand -wh eels, 12, are turned which results in'm'ov ing clamp plate, 15, against the movable wall, 31, of the holder so as to compress the bristles against the blade, 41.; The ferrules, 45,

will then have position iIi a straight line asshown in Fig.9, with their open ends 'upper- L 1nost.- 'Wlnletliis is going on, the bar, 67, will be swung back using the rod, 64, as a pintle and the weight, 96, counter-balances the weight otthe arm, 67." The carriage,

65, is now moved al0ngthe-rod, 6l', so as to present the bar, 67,: at the first ferrule inthe rod.

Cement, 97, may be placed 1n each ferrule in suitable quantity on top of the butt-ends of the bristles in any suitable way and'the operation will then proceed as follows:

The operator will grasp handle, 68,- and swing bar, 67, down sothat nozzle, 79,, will enter the endmost ferrule of the row. .In

doing this'the sealing material, 70, will be seated on the upper edge of the ferrule, 45,

- and form a' sufiic'iently tight joint to prevent the escape of air atthat point. The operator will then 'actuatethe lever, 85, near the handle, 68, so as to unscatvalve, 77, whereupon airwill pass from chamber, 7 5, through passage, Tl, to nozzle, 72, atid out through the ports, 73, into the ferrule, 45. The admission of air under pressureto the ferrule and on' top of the cement will sprin the side walls of the ferrule outwardly an( in doing so will relieve the upper or rootends of the ,bristles, 44, from some of the ferrule pressure thus enabling the air tomore readily force the cement down through the bristles toward. the lower edge of the ferrule. It is at this point in the operation that the bar, 88, and plate, 98, serve a useful function. in that they form stops at opposite sides of the bulged ferrule to limit.- the out ward movement. of the latter. and this is their sole function;

It will be understood that from the lower 'or flag-ends of the bristles to the upper "way through the butt-ends of the bristles because the air willpass down through said ends and carry the cement with it.

i '10 c ented and the so the -clamped work I OQELBQO After one brush-has been treated as above f described, the'arm, 675-Iwill be raised sufiicientl'y to enablethe nozzle, 72, to' clea'rthe P lei-rule, andjthe carriage, arm"-an;d attached parts 'will be-shifted on the bar, 64=,-."so as to bring the nozzle'oven thernext ferrule: .whereupon the operation "will be repeated. These operations will therefore be repeated 1 until the entire -i'0w-.of- 'brus'hes have Qbeen I holder will then be removed and another filledwith brushes tobe cementedjfwill be substituted. Haringthus'described my inventionwhat I laim'and; desire to, secure by Letters Pat Ina cementing ap 'aratusjthe combination with means to camp the work, of means for iorming-a'sealfebout that part of the work where the cement is to be applied and ftravling' .niean's zmovable along the Y clamped work for supplying air under pres-' sure toi'the sealed portion of the work. I

2; In a cementing apparatus. the combinati'onwith clamping means,- of means for forming "a seal "bout that portion; of the. i work where the fcement is to be applied; means for applying air under pressure to the sealed portion of the work and'means movable from one point to another along for sustaining the airsupplying means. A

Ina cementing apparatus the combination with work-clamping means, of means .-movable from one point to antither alongthe work while the latteris clamped and {carryin a sealing means for forming a seal about -tI1e clamped work, and means alsocarried by said movable means for applying air under pressure to-the sealed pOE'OlQItOf 40 the clamped work. I 'i'In acementing vapparatus the combination with means'to clamp" the' work, of means for forming 31156311 about that part of thework wherefthe cement is to be applied; tra-ylin egieansfmoyableffrom point to I point png l.; t h .WQrk while the 'latter 1S: clam ed for'applying air under pressure to "the sealed portronoi the work and. means moirable with-saidtra'veling means for con-r 60 t-rollin'g rthe; of airto thesealed work. a -Jr v -5. Inacementingapparatus'the combina tion-with alclampto hold the work with those portions 'that' are-to'be cemented-in a uniform line rrrelfation, of; a traveling seal; means for guiding the seal {during its movemen'tfrom point to point along the clamped work infa line parallel with the arrangeinent of the work, and means movable with. the salfrom point to ppint alonggtho work for applying' air under pressure the sealedportion of the work. 6, In a cementing apparatus the combination" with a clamp to hold the work,' of a as guide. extending parallel "with the-clamp? for sealing the 0 elamping a plurality of .fei'rulebountl means timbre alonglthe guide' to tornila i I seal with the work and means carried said movable means. for applying air under.

pressure to the sealed wor '7.--In a machine for cementing the bristles I of'a'brush'which'bristles are/provided with a ferrule'at oneend, the-oombinationwith a: claim to engage "thekbristle's; of stops spaced cement. into the ristleswhile the ferrule is spread..-

omand-at opposite sides o'fthe fer rule to allow the wall. of -the ferrule, to spring outwardly a limited distance; means 1 pen endof. the ferruleand 1 ,-means for. applying 'air iinder pressureto" the ferrule to -s read-the latterianttforce- 8. In a machine for forcing eementiinto the ferrulwbouud en'd'of abunch of bristles,- the combination with means to supportpa plurality of iferrule bound bunches of bristles of means movable along the" fer ruled-end of .the. bristles; in-lsuccession tosupply air under pressure'to the "ferrules one after another.

91' In amachine for forcing cement into the" ferrule-bound ends of bunches of bristlcs,the

combination with means to support-a 'plu- *rality of ferrule-bound bunches of bristles I in arow, of means movable from onefferrule to another along the rowtoi sealthe open ends of the jferrules and means alsomovable along 1thegrow of ferrules for applyair under pressure to the ferrule-bound in en s of the .bristls..-I'. I a

10. Ina machine for forcing cement into, the ferrule-bound ends of bunches of bristles the combination with means to'clamp a row of bristle-bunches, of aguide extending par allel with the .row of bristles; means movable along theguide forsuccessively sealing the ferrules on-the row of bristle bunches.

and means movable with said sealing means for applylng air under pressure to the fferrule-bound ends of the bristles.

-11. The combination with means for,

clamping a plurality of ferrule-bound bunches of bristles in a row with the open ends of all the ferrules exposed, of means I for sealing the open end of a ferrule and means movable lengthwise of the rowof ferrules for applying air under pressure to the ferrules in succession.

12. The combination with means for clamping. a plurality of ferrule-bound bunches of bristles in a row :with'the" open ends of all the ferruleseiip osd, of' means movable" in Ia duection at right angles to the row of fer fvules'jer sealing the-fopen ends thereof and fmea'i' is' movable lengtln j'se Qf' the row'of ferrulesf ij fl i lllleSealedferrules."- b

l 71th l ln eflns f "a. row: with the open movable in a direction at rlght angles to the row of ferrules for sealing the open ends:

thereof; means movable lengthwise-of the row of ferrules for applying air under pressure to the sealed ferrules. and means oarried by said lattermeans for controlling the escape of air to the ferrules.

14. The combination with -clainping a plurality of ferrule-bound bunches of :bristles in a row with the open ends of all the ferrules exposed, of means for .sealing the open ends of the ferrules; means at opposite sides of and normally-spactd from the ferrule to limit theoutward bulging of the ferrules, and-means for applying air under pressure to the sealed ferrules.

. allel with the row of clamped bristles; a

- 15. The combination withmeans for clamping a plurality of ferrule-bound bunches of bristles in a row with'the open ends of all the ferrules exposed, of a guideextending in a direction substantially parcarriage movable along said guide; means sustained by and movable with the carriage.

for sealing the ferrules and means also movable -with the carriage for applying air under pressure to the sealed ferrules.

16. The combination with means i for clamping a plurality of ferrule bound bunches of bristles in a row with, the open means for combination with a the carriage for forming stopsatopposite sides of the ferrule to limit.- the out-.

ward bulging of the latter and means movi 40 .1

able'with the, 'carriage for applying. airunder pressure to the sealed ferrules.

17. The combination 'with'j-means forclamping aplurality of ferrulebound' bunches of bristles in a row with the open ends of all' the ferrules exposed, of a guide extending in adirection substantially parallel with the row of clamped -.bristles and a carriage movable alon said guide; means sustained by and movable with the carriage for sealing the ferrules; adjustable means movable; with the carriageand sustained-at.

oppositesides of the row of ferrules to form side stops; means movable with the carriage for applying air under pressure to the sealed ferrules and means for controlling the passage ofsaidair.

' 18. In a brush .cemen'ting apparatus the".

portable holder to sustain a'plurality of ferrule-bound bunches of bristles in'a row with the ferrules exposed,

of a blade in the holder'to-divide the bristles ofthe row of bristle bunches; means for clamping the bristles against the blade,

means for'sealing the ferrules and means for applying airunder pressure 'to the sealed ferrules.

In testimony whereof I afiix my signature' in presence of two witnesses.

' 'Witnesses:

G. FERD. .VOGT CHARLES B. MANN, Jr.

HUGH 1?. MoMlLLAN.

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