US2600955A

US2600955A - Apparatus for making paint roller covers and the like

Info

Publication number: US2600955A
Application number: US56628A
Authority: US
Inventors: Charles H Barnes; Grosse Frank
Original assignee: Rubberset Co
Current assignee: Rubberset Co
Priority date: 1948-10-26
Filing date: 1948-10-26
Publication date: 1952-06-17
Anticipated expiration: 1969-06-17

Description

June 17, 1952 c. H. BARNES ET AL 2,600,955

APPARATUS FOR MAKING PAINT ROLLER covERs AND THE LIRE rroR/vfys.

June 17, 1952 c. H. BARNES ET AL 2,600,955

APPARATUS FoR MAKING PAINT ROLLER covERs AND/THE LIKE 5 Sheets-Sheet 2 Filed Oct. 26, 1948 June 17, 1952 c. H. BARNES ET AL 2,500,955

APPARATUS FOR MAKING PAINT ROLLER covERs AND THE LIKE Filed Oct. 26, 1948 5 Sheets-Sheet 3 MZ-6". Z

CHA/w 5.5/66 BAP/V55,

rra/ewfys.

June 17, 1952 c. H. BARNES ET AL 2,600,955

APPARATUS FOR MAKING PAINT ROLLER COVERS AND THE LIKE Filed oct. 2e, 194e 5 Sheets-Sheet 4 6,17/,42455H 54AM/5,

EPA/wf 6*,@0555 JNVENToRs June 17, 1952 c. H. BARNES r-:T AL 2,600,955

APPARATUS FOR MAKING PAINT ROLLER COVERS AND THE LIKE Filed Oct. 26, 1.948 5 Sheets-Sheet 5 I |02 l l fbg/wr veassf,

INVENToRs Patented June 17, 1952 :APBARATU S FIOR MAKING. PAINT ROLLER '.C'OVERS AND THEl LIKE iCharles .,H.: Barnes, Glendale, -andzErankGrossa Los-.Angeles,v Calif.,

- signments, to `...Rubberset-..".(3ompany. Newark,

:.N. ...J a `.corporation of New'. .Jersey 512.Iilaims. 1 Y This:inventionmelatesito.alin'rethodand: appa- "z-fratus".'foriniakngpaintgroller:coversandthelike lSuch paint roller covers ...arci shown. in. .our 1 colpen'ding application: ledzof, even ,date herewith, .'iSerialNoe-"56g627- These'improvedl paintroller .:'coverslare'luseful inxconnection .withpainting rap- `foaratusiof thetype shownlinour copending ap- Vfplication. filedi'March :22, V104:8, bearing'v Serialy No. `v`l6f,27l,liand..in the copendingztapplication. '.ofi :A1- fred C H. ABarneset1';al.,.1 filed ..February;. 1.1,.. 1946, fb'earing l *Serial .No. ...l-646,774, :now ..Patent'.1No.

2,509,954, granted May30,1 1950.

Faintl rollercoverstorconventional' form-:ecom- "monlytarexmanufacturedhas:a.flat'.fabriciorcomfbin'a'tion of'fabrics andithen :joined 'alongiacxbutt 'ijointor Alampi-joint seam `:to .formlxia.. cylindrical 'roller cover. "..lThe seamjs highly :objectionable 'f-because I-itlinterferes with :uniformi Yapplication fiofipainti/or of "stipplefetfect'` tofthe workfsurface. lThe doublei'thickness' offabriczat the-seam f'marks ltheipain'ted surface .when fthe; roller is `'rbllevzlupon it because of the 'additional'thickfi'ness,f-.as fwell as the variation 'in'.porositythrough fthe doublethicknessas contrasted .to the` porosity of a'fsingle thickness. 'Accordinglyran vimlpcirtant object. ofthef present.` invention is to zfpro'du'ce'. az'cover` for: a '.paintroller which/.com-

LaprisesaA fibrous .pilefiencirclingafcylindricaktube, I

.f-.Another i object is to 1 iprovide...a method fand fapparatusforlproducing'archenille pileioxra cylin- `:driealseamless':tubelitilizingtonff orzfmore ',yarn- A`:threaded needles *operating -withinthe interior of A.the tube.

f A more l detailed s object isV .to provide method tandapparatus for. .producingachenille pile on the .inside Wall of a .cylindrical .fabric ..tube, the @completed article 4being reversible by `turning. in- '.side o1/'mso'v that tthepile is. positioned .exteriorly Aoftheltube.

"'LOther objects and advantagesV iir'illapp'ear here- 'inafter.

the "drawings:

"*lligure' 1*is a'fside elevation" showing AAinoutline #a'fpreferredfform "of apparatus embodying our finventionfand used in vcarrying outV our Vimproved ""mthod.

i Figure 2 is a-sectional'end elevation taken' sub- 'i'stantially on thelineskZ-Inas shown in Figure 1. lliigurei'iisLa'issectionalaside elevationr-.partly :.'brokenfaway takenlsubstantially `on the `lines -.ssfasfshownin Figure 2.

Figure .4.:isza horizontal plan view partly .broken fgawaytaken substantially 1on1 the lines 4--4 as 5 .,shownin Figure 3,the fabric tube being` omitted iffor. clarity-.tof.-illustration.

.Figureis axsectionall detail taken^substan .'tiallyfontthelines V5 5- as ,shown in Figure l.

I Figure isf a horizontalplanview partlybroken 10;;:away `showing;tlfiepupper sideof the needle. plate f andiaassociatedf parts. Y

Figure 7: isa:.perspective '.viewrshowing a- 4completedpaint rollerxcover; as manufacturedgbyi the iiapparatusshowrrinrthe other gures ofthe draw- .1; Figure 8 lisia sectional `end elevationy taken: sub- '.Lstantiallynzthe lines: -.-asshown in *Figure '5.33, the needle' beingingully retracted position.

Figure: 9 isza .sectional view. similar to. Figure 20 gxtherneedle being in 'la partially extendedf posi- "tion.

Figure F10. is a syiewgsimilar. to Figures zfand 9, thezneiedle lz'being' in fully. extended position.-

`Figure-;11:.isjsimilar :to V.Figures 8, 9 :and 10, the needle being in partially retracted position ,f .ligures 12, .13 sand; 414 oare;sectional= elevations .i:takens-:substantially.;:,on `:the linesl I'2--l 2, I3-I 3 :andy llt-:L43 asshowniin'liigures9*J 10 andll'- re- :spectively f i, Figure: .'15 .f is .ha fsectional:v elevation; similar to LiFigure. 3.:b11t:'showing.amodiediform zof our infventions employing-.a1- plurality. .of needles.

;.*Figure.1`6 isia'horizontalzplan'viewpartly brok- ;teni'away'.; taken V'substantiallyion the lines il 6- I 6 staszshown in Figure ,15.

.-.lligure I'l-isfa :sectional end elevationv similar =;to::1'igure. 8';tbut illustrating;.a furtherxzmodied Liiform:of.;;our:'invention.

Figure 18" is .a"perspective .View partlMbrOKen 1405.-' away :showingxdetails of :the `zmodication. illus- 1. ttratedtinz'Figure 17.

Referring'tofthe. drawings, a sewingmachine .headll ispositionedaonra .basel l supported by iend.membersl.l2. The .crank shaft `I3. may be urfsmotion .to'Mertical.;ateciproc'ation. Guide 'zbearings 24 are provided for the

vertical guide rods

22 and 23. At its projecting end the horizontal bar member carries the vertical post 26 which extends downwardly through the guide bearing 21. The needle bar 28 is secured to the lower end o'f the post 26 so that rotation of the drive shaft I3 serves to reciprocate the needle bar 28 in a vertical direction. The needle bar 28 eX- tends forwardly from the post 26 for a considerable distance and carries an apertured needle` 29 at its forward end. A set screw 30vmay be provided for releasably holding the needlel in place on the needle bar 28. 3| partially encloses the needle bar 28 and extends from a support bracket 32 toa position beyond the forward end of the needle bar 28 as shown in Figure 3. This shell is adapted to support a fabric tube from the interior thereof. This fabric tube is generally designated 33 and is preferably cylindrical in shape and formed of porous fabric. This tube 33 is preferably seamless. We have found that a commercially available seamless canvas tubing is ideally suited for this member. The purpose of the apparatus shown in the drawings is to form a fibrous pile 34 on the tube 33 so that the completed device is useful fora paint roller cover or the like.

`The length of the apertured needle 29 is such that in the retracted position as shown in Figure 3 it is confined entirely within the interior of the tube 33. The downward movement of the needle 29 causes the lower pointed end thereof to pierce the wall of the tube 33. The needle is threaded with a wool yarn 35. This yarn 35 extends from a supply spool 36 through a system of conventional pulleys 31 and over a travelling pulley 38 carried on the upper end of the reciprocating rod 22 by means of the arm 39. The yarn 35 then passes through the guide 49 carried on the rearward end of the presser bar 4I and then through the guide 42 carriedon the forward end of the needle bar 28. The reciprocation of the yarn threaded needle 29 causes the needle to carry a loop of yarn 35 through the wall of the tube 33.

The presser bar 4| carries a pivoted shoe 43 at its projecting end which is adapted to rest on the inside surface of the wall of the tube 33. The rearward end of the presser bar 4I 'is connected by a bracket 44 to the horizontal carrier 45'.` This carrier 45 is attached at one end to the bracket 44 and at the other end to the vertical slide rod 46 which is guided in axially spaced bearings 41 carried on the head I9. A coil spring encircles the vertical rod 46 and acts against the set collar 48 to move the rod 46 vertically downwardly. An actuating lever 49 is pivotally mounted at 59 on the head I8 and carries a cam nose 5| which may be engaged with thefollower surface 52 on the cam follower 53 fixed on the vertical rod 46. As will be readily understood, clockwise movement of the actuating lever 49 as viewed in Figure 2 acts to raise the' vertical bar46 against the action of the spring 25, thereby lifting the presser bar 4I within the interior of the tube 33.

The presser shoe 43 is provided with a circular aperture 54 through which the needle 29 may extend. The needle 29 also extends through the slot 55 provided at one side of the feed plate 56 which is secured to the base II by means of connection fittings 51. A serrated feed rack 58 operates in the transverse slot 59 provided in the feed plate 56. 'Ihe construction and mode of operation of this serrated feed rack 58 are con- A stationary shell ventional and therefore need not be described in detail. This feed rack 58 is attached by a fitting 60 to the links 6| which are pivoted at 62 on the crank 63. The crank 63 is fixed on the rock shaft I8. The free end of the link 6| is provided with a slot 64 in which a slider 85 is adapted to travel. This slider is pivotally mounted at 66 on the end of the crank 61. The crank 61 is carried on the rock shaft |811. The rocking motions of the shafts I8 and I8a are so related that the serrated feed rack 58 is caused to move upwardly within the slot 59, then to travel horizontally to the right as viewed in Figure 8, then to depress below the upper surface of the feed plate 58 and return while depressed to its initial position. The teeth are angled to secure maximum effect in moving the fabric of the lower portion of the wall of the tube 33.

Means are provided for cutting the loops of yarn exteriorly of the tube 33, and as shown in the drawings this means includes a hook member 68 which is provided with a hook element 68 and a guide plate 10 which act as a single integral member. This member is carried on an adjustable foot piece 14 which may be clamped to the rock shaft I9. An upwardly projecting knife 1| is carried on an arm 12 xed on the knife shaft 13. This knife shaft 13 is square in crosssection for the major portion of its length and is provided with aligned offset cylindrical trunnions 15 at its opposed ends. Supporting bearings (not shown) are provided on the base 16. A crank 11 fixed on one of these trunnions 15 is connected to a crank 18 on the rock shaft I9 by means of the connecting link 18a. Oscillation of the rock shaft I9 serves to oscillate the trunnion 15 and knife shaft 13. Since the crank 11 is shorter than the crank 18 the knife 1I moves relative to the hook member 68 when the rock shaft I9 is moved through its arc of motion.

In operation the actuating lever 49 is raised to lift the presser bar 4I and shoev 43 away from the feed plate 56. With the needle 29 in the fully retracted position as shown in Figure 8, the seamless canvas tube 33 is slipped over the shell 3| with the shoe 43 projecting into the interior of the tube. The presser bar 4| is lowered to bring the shoe 43 into contact with the inner surface of the wall of the canvas tube 33. The electric motor I4 is energized to cause the needle bar 28 and needle 29 to reciprocate and to cause the shafts I8, I8a and I9 to oscillate. The needle 29 moves from the fully retracted position shown in Figure 8 to perforate the wall of the tube 33 from the inside thereof, and the needle is shown in partially extended position in Figures 9 and l2. As the needle continues its downward movement to reach the fully extended position shown in Figures l0 and 13, a loop 19 of Wool yarn 35 is drawn through the wall of the canvas tube 33 to extend exteriorly thereof. The needle then begins its upward retracting movement and when partially retracted as shown in Figures 11 and 14 the hook 69 enters the loop 19 to prevent it from being withdrawn back through the wallof the canvas tube 33. When the needle is fully retracted as shown in Figure, the oscillatory motion of the rock shafts I8 and I8a cooperate to bring the serrated feed rack 58 into play, and it moves from left to right as viewed in Figure 8 to turn the tube 33 through a short distance. When the needle 29 again descends it repeats the cycle. The serrated fed rack 58 lies in an operative position so that the canvas tube 33 remains anoniem while the Aneedle .sis completing :its forward and stroke.

`Each-time Athe needle descends #through `:the wall fof-the fcanvas -tube :133 ythe vloop '1.9 carried by Ethe needle iis :engaged by Athe hook 59. One .01 -fmoreloops accumulate :entire hook 469 :as shown 1in #the drawings. These :loops tare progressively -cut, Nflfiowever, :as the :reciprocating :motion 'of the `eneedle :continues Lby the :cooperative action `of the cutting knife '."ll and nook-.member `E. :As .set *forth 1above, :the knife 11| :is yactuated .trom fthe #shaft 'il 3 whereas the hook fmember E 8 .vis .actuated fromtherock shaft i3, and :the-relative .moti-.on between thesefshaits causes the .knife jl'l to .move "with;respect`ltothe1hook mcmberi so thateach time fa new loop .119 is engaged :by 4the .hook :69 -a previously V.formed loop iscut .bythe knife ll. The Vfree toutr ends of .the :loops -fray l or :spread to .fiorn the outer fsurf-aoefo'f acl'lenlllepe 4'li/leans fare provided "for :advancing .the .canvas tube S33 axially on the shell 31 :so that-the .pile 35. may extend for a considerableglength :along lthe canvas .tube t33. "Ihis advancing meansmay be Iarranged to .move .the Ltd-be 33 .axially :at Vintervalsfcorresponding to the formation .of aull circle of loops by the needle l29 :and yknife 1I, `or as set forth :in 4the ,drawings athis :advancing l`means maylbe continuous so that .thegloops :are .hellcally positioned on the cylindrical canvas tube=^33.

.A Apneferred l.forni :of advancing A*means :cem- .prises the relatively stationary ffender 8.0 :which `lis carried on :a v.bar 8l v:and :adjustable Support 1.82. This fender :ell lis fshaped on fits .inner edge :to

fconform lto the :shape .of :the canvas #tube :.33 *..wnile 1in position on fthe :shell :.31 .and ...fextenids .from a position radiacent'zthe .eed plate E :helically around the :shell 3. I, :and .its upper :end 83; is ienected slightly away rfrom the .helix line.

the out loops .-travele-aroundwith :the .canvas :tube 3 under .the intermittent action of the #serrated `feed :rack :et they contact Vthe fender ltube 33, fand t-he ,completed :paintrroller cover is withdrawn axially .to :the ,right away -f-rom "the supporting =s-hel13L The .completed-paint roller cover is shown inFigure .7.

lnxiorder itl'iat the :spacing between :adjacent l :turns `A of the 'helix '-formed Aby :the .loops of yarn :may tbe accurately regulated and ycontrolled .las

desired, we 4vprovide .a Afeed .control 'means -yvhich .modifies the :action of Nthe fender lyaand .causes itheitube 33 and pile 34 toxmove axially 4relative to .the 4shell .3L .-As shownin the v.drawings .this @supplementary means `includes a roller .element y154 :carried on vthe projecting `end of :a ipivoted :mim 815. The warm '.'35 is :pivotally v.carried ion a @swivel y`bracket 36 .supported for :adjustment:

:about sa vertical :axis Vwith respect :to the vframe of :the machine. :A tension spring 81 :is eproivided which @acts :on -the :arm Q5 ato -maintain pressure contact :between the roller .element t4 fandthe outersurface of .the wall oftthe canvas f 'Theroller `element Bil-'may be provided with -arubber-.rmor .may ,have vserrated:teeth around its periphery,;or provided with :any Vother means -ifor increasing-the ifrictional:contactgbetween the f-f- 6 roller aand the puter rs 333i. when zthe feller :is `positiened as ,shown fin ifull lines :in Figure .the spacing .between iatlhjacent:turns of .the helix of .the v.pile 1.3.4 .is .increased .Land the .spacing may fhe .increased .to the extent :that Vthepiender .80 .is no .longer ,QD- erativenthat'is, :thetube :331s caused .by thevroller .8.4 to :advance axially at .such a :high .rate that the cut loops no .longer Contact the :fender .80.

10 t0n the other Yhand.,-theroller .8.4 may beswune :to Va position such Vas that .shown by the phantom .lines .in .Figure .aso Ythat :the lateral .friction .force `developed by the roller vonzthe tube `3,3 is :such as :to .tend :to .move .the tube .33 4:toward .the .left YSlhigs brings :the side :face :.83 lntotehter contact witlirtheifender 8.0 r.and.resultsin diminishing the spacing Abetween .adjacent turns .of u.the fhelix. from this description it will be understood .that by Avarying `the angular position Qf the roller 8g4 vwith respect to 1 the tube VV8.3, that F.within limits any `desired :spacing between turns of fthe helix .may be obtained.

If .desired the ann 851may ybe Yattached to the lower end .of a ycable -ll extending downwardly from .-an .arm 9| carried on the vupper end of the vertical rod 46. This construction aiords an automatic means for liftinggthe rol1er`84 from lthe tube 33 whenever the actuating Alever 49 is lifted .to raise ithepresser ybar .4l and `shoe 43 ffrom the-interior wall surface of the.tube.33. `In :the `:modified form fof `our `invention shown in Figures 15 :and .-16 -a plurality of apertureol lneedlesfare used v.instead of thesinglesneedle 29. Theseneedles lxarecarried one reciprocating .needle bar lill Lel..t.tach.e :l Yto .the vertical `.post .1.02.

.A separate yarn-thread Al B3 is supplied to L,each of theneedles 'Ihepresser bar |04 carried .on the bracket .IE5 is provided with a Ypivotedshoe l e5 .for feach of :the .aperturecl vneedles l 80. The fknife shait Izlll .carries .apluralityof :knives lut, and the .rocliishaft .[09 is provided with .a plun rality `of hook members -I.l(l. .The .mode of Op eration is substantially the same ...as .that described in V'connection with the previousiembodiment of vour invention, except that the .fibrous pilefon the canvasftube base is formed from a plurality of ...needles grather .than V from .a Asingle needle. Any .convenient Iadvancing means may be `.provided such as, for example, the stationary -fender .l I I :and vthe .adjustable roller element 1, l2. .By :means y,of this .multiple needle .arrange- Yment .the 2productiontime .for manufacturing a ina'int roller .cover maybe greatlyreduced.

.The multiple needle device produces a .paint -ifoller cover or .the ,like which is Asuhstantially similar to `.that ,produced by the .single .needle arrangement, .the ,end of each `helix formed .by one. needle being positioned .adjacent i the .begin- .hingof the helixiformed by the nextneedle. It is recognized that the vv'needles can be spaced `closer together so that a multiple Aleadhelix isformed .insteadof asingle lead helix, that is, xthe serlesof cut loops formed by each needle liesin between similar series-.formed-byneedles ,on eachside.

In :Eigures ,31.7. and ..18 :wehave shown-a further zntodificatnn in "which the :reciprocating taper :tuned .needle -is Vplaced :outside 'the canvas -tube :while fthe ,hook member vvand knife -are vplaced within .the .canvas ztube. A A:substantially `Cylindrical:shell.lefcarriedpnfthe base l.2.| byrgmeans :of suitable brackets .L22 .is adapted tp support .the canvastube L23. Areciprocatingfneedle |24 is :positioned outside the .canvas ,tube .|23 :and iso as :the :presser :bar {l-la .and shoe 125. The;ser

iratedeedrack 1.26 .isnostionedfwithinftheshell urtare .of fthe manitas tube i 7 and operates within a transverse slot |21 formed in the shell |20. A bar |28 extends axially of the shell |20 for connection with the operating link |28 which is positioned beyond the rearward end of the shell |20. This link is operated in the.,

tuated by conventional means beyond the rearward end of the shell. The extreme forward end |39 of the shell |20 is shaped in the manner of a helix and extends from a position adjacent one side of the needle opening |40 to the extreme forward lift |4|. When the loops of wool yarn are formed inside the canvas tube |23 by the needle |24 and subsequently cut by the cooperative action of the knife |36 and hook member |34, the side edges of such loops ride against the helical or inclined surface |39. In this way the canvas tube |23 is caused to advance axially as it is turned by the serrated feed rack |26.

The completed device as formed by the mechanism shown in Figures 17 and 18 has the fibrous pile on the inside of the tube. The article is then turned inside out so that it has the appearance of the paint roller cover shown in Figure 7.

The otherwise completed paint roller cover as manufactured in any one of the types of machines disclosed above is subjected to steam on the inside of the tube. The steam shrinks the yarn and sets the fibers more tightly. Consequently, the shedding of wool fibers is prevented.

Having fully described our invention, it is'to be understood that we do not wish to be limited to the details herein set forth, but our invention is of the full scope of the appended claims.

We claim:

1. In a device for forming a chenille pile on a wall surface of a fabric tube to produce a paint roller cover or the like, the combination of a relatively stationary member for supporting the fabric tube from the interior thereof, feed means cooperating with said member Afor turning the fabric tube about its longitudinal axis, a reciprocable needle bar on one side of the Wall of the tube, an apertured needle carried on said bar adapted upon reciprocation of said bar to pass through the tube wall and to carry loops of yarn ktherewith to the other side, means for advancing the tube axially in coordination with the turning thereof, cutting means positioned on said other side of the tube wall adapted to cut the yarn'loops passed through said tube by said needle, so that the free ends of the cut loops may form a chenille pile, and means for operating said feed means, said needle bar, and said vcutting means in synchronism.

2. In a device for forming a fibrous pile on a fabric tube to produce a paint roller cover or the like, the combination of a relatively stationary 'member for supporting the fabric tube from the interior thereof, a reciprocable needle bar extending within the tube, an apertured needle carried on said bar adapted to pass through the tube wall from the interior thereof and to carry loops of yarn therewith to the exterior of said tube upon reciprocation of said bar, cutting means positioned exteriorly of the tube adapted to cut the yarn loops passed through the tube wall so that 8 the free ends of the loops may form a pile, and means for operating said needle bar and said cutting means in synchronism. 1

3. In a'device for forming a fibrous pile on a fabric tube to produce a paint roller cover or the like, the combination of a relatively stationary member for supporting the fabric tube from the interior thereof, a reciprocable needle bar extending within the tube, an apertured needle carried on said bar adapted to pass through the tube wall from the interior thereof and to carry loops of yarn therewith to the exterior of said tube upon reciprocation of said bar, feed meansfor turning the fabric tube, advancing means -including a stationary fender outside the tube adapted to contact the side edge of the loops so formed to advance the tube axially, cutting means positioned exteriorly of the tube adapted to cut the yarn loops sothat the free ends of the loops may form a pile, and means for operating said needle bar, said feed means and said cutting means in synchronism.

4. In a device for forming a fibrous pile on a fabric tube to produce a paint roller cover or -the like, the combination of a relatively stationary member for supporting the fabric tube from the interior thereof, a reciprocable needle bar extending within the tube, an apertured needle carried on said bar adapted to pass through the tube wall from the interior thereof and to carry loops of yarn therewith to the exterior of said tube upon reciprocation of said bar, means to rotate the tube and to advance it axially, cutting means positioned exteriorly of the tube adapted to cut the yarn loops so that the free ends of the loops may form a pile, and means for operating said needle bar, said tube rotating and advancing means and said cutting means in synchronism.

5. In a device for forming a fibrous pile ona fabric tube to produce a paint roller cover or the like, the combination of a relatively stationary member for supporting the fabric tube from the interior thereof, a reciprocable needle bar extending within the tube, a plurality of apertured needles carried on said bar adapted to pass through the tube Wall from the interior thereof and to carry loops of yarn therewith to the exterior of said tube, feed means for turning the fabric tube on said supporting member, cutting means positioned exteriorly of the tube adapted to cut the yarn loops so that the free ends of the loops may form a pile, and means for operating said needle bar, said feed means, and said cutting means in synchronism.

6. In a device for forming a fibrous pile on a fabric tube to produce a paint roller'cover orthe like, the combination of a relatively stationary member for supporting the fabric tube from the interior thereof, a recip-rocable needle bar extending within the tube, a plurality of apertured needles carried on said bar adapted to pass through the tube wall from the interior thereof and to carry loops of yarn therewith to the exterior of said tube, feed means for turning the fabric tube on said supporting member, advancing means including a stationary fender outside the tube adapted to contact the side edge of the loops formed by one of the needles to advance the tube axially on said supporting member, cutting means positioned exteriorly of the tube adapted to cut the yarn loops so that the free ends of the loops may form a pile, and means for operating said needle bar, said feed means and said cutting means in synchronism.

7. In a device for forming a chenille pile on a fabric tube to produce a paint roller cover or the like, the combination of a member to support the fabric tube from the interior thereof, an apertured needle mounted to reciprocate with respect to said support member and adapted to carry loops of yarn from the interior of the fabric tube to the exterior thereof, means for progressing the tube helically with respect to said support member, cutting means positioned exteriorly of the tube adapted to cut the yarn loops so that the free ends of the loops may form a chenille pile, a main operating shaft, and connections from said shaft for reciprocating said needle and operating said tube progressing means and said cutting means in synchronism.

8. In a device for forming a chenille pile on a fabric tube to produce a paint roller cover or the like, the combination of means to support the fabric tube from the interior thereof, an apertured needle mounted to reciprocate with respect to said means and adapted to carry loops of yarn from the interior of the fabric tube to the exterior thereof, means to turn the tube on the support means, cutting means positioned exteriorly of the tube adapted to cut the yarn loops so that the free ends of the loops may form a chenille pile, a main operating shaft, connections from said shaft for reciprocating said needle and operating said tube turning means and said cutting means in synchronism, and means including a drag roller adjustably positioned to engage frictionally the wall of the tube for moving the tube axially.

9. In a device for forming a chenille pile on a fabric tube to produce a paint roller cover or the like, the combination of means to support the fabric tube from the interior thereof, an apertured needle mounted to reciprocate with respect to said means and adapted to carry loops of yarn from the interior of the fabric tube to the exterior thereof, means to turn the tube on the support means, cutting means positioned exteriorly of the tube adapted to cut the yarn loops so that the free ends of the loops may form a chenille pile, a main operating shaft, connections from said shaft for reciprocating said needle and operating said tube turning means and said cutting means in synchronism, a stationary fender adapted to contact the sides of the yarn loops so formed as to advance the tube relative to the support means as it is turned thereon, and a drag roller frictionally engaging the wall of the tube acting to modify the advancing function of the stationary fender.

10. In a device for forming a chenille pile on a fabric tube to produce a paint roller cover or the like, the combination of a shell to support the fabric tube from the interior thereof, an apertured needle mounted outside the tube and adapted to reciprocate with respect to said shell,

the needle acting to carry loops of yarn from the exterior of the fabric tube to the interior thereof, feed means for turning the tube on the shell, cutting means positioned inside of the tube adapted to cut the yarn loops, a main operating shaft, and connections from said shaft for reciprocating said needle and operating said feed means and said cutting means in synchronism.

11. In a device for forming a chenille pile on a fabric tube to produce a paint roller cover or the like, the combination of a shell to support the fabric tube from the interior thereof, an apertured needle mounted outside the tube and adapted to reciprocate with respect to said shell, the needle acting to carry loops of yarn from the exterior of the fabric tube to the interior thereof, feed means for turning the tube on the shell, cutting means positioned inside of the tube adapted to cut the yarn loops, a main operating shaft, connections from said shaft for reciprocating said needle and operating said feed means and said cutting means in synchronism, and stationary means on the shell adapted to contact the sides of the yarn loops for advancing the tube axially of the shell.

12. Apparatus for making a paint roller cover or the like, comprising a reciprocable yarnthreaded needle adapted to be passed through the wall of a cylindrical fabric tube to carry loops of yarn from the exterior thereof to the interior thereof, cutting means Within the tube for severing yarn loops carried by the needle into the interior of the tube whereby the free cut ends of the loops may form a chenille pile Within the tube, means for turning the tube about its axis and for advancing it axially, said means including a stationarymember having an inclined surface adapted to be contacted by the side faces of the out loops of yarn, and means for reciprocating said needle and for operating said cutting means and said tube turning means in synchronism.

CHARLES H. BARNES. FRANK GROSSE.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 397,082 Humphrey Jan. 29, 1889 1,603,328 Dietz Oct. 19, 1926 1,721,062 Angell July 16, 1929 1,919,813 Tibbut July 25, 1933 2,097,315 Watkins Oct. 26, 1937 2,345,337 Gardner Mar. 28, 1944 2,348,469 Greenberg May 9, 1944 2,378,456 Wooster June 19, 1945 2,411,883 Kile Dec. 3, 1946 2,486,963 Miller Nov. 1, 1949