US2605741A

US2605741A - Apparatus for coating and coiling metal strip

Info

Publication number: US2605741A
Application number: US44007A
Authority: US
Inventors: Field Crosby
Original assignee: Individual
Current assignee: Individual
Priority date: 1946-09-18
Filing date: 1948-08-13
Publication date: 1952-08-05
Anticipated expiration: 1969-08-05

Description

Aug. 5, 1952 c. FIELD APPARATUS FOR COATING AND comm METAL STRIP Original Filed Sept. 18, 19 1s 9 SheetsSheet 1 7% 117;. W W W a J 7 m 2 fl l a n HN l l l l JM ig a 6 f a W .w i M i M W G Ml Ll ll A r J F m W a d A W 5% my 1% w y i f .,.,,...YUH \.\3,\ a

IN VEN TOR. CROSBY FIELD ATTORNEY6 Aug. 5, 1952 c. FIELD 2,605,741

APPARATUS FOR COATING AND COILING METAL STRIP Original Filed se t'. 18, 1946 9 Sheets-Sheet 2 INVENTOR. CRQSBY FIELD A T TOENE Y-SI Aug. 5, 1952 c. FIELD 2,605,741

APPARATUS FOR comma AND conmc METAL STRIP Original Filed Sept. 1a, 1946 w 9 Sheets-Sheet a INVEN TOR. v CROSBY FIELD A T TOR/V5 Y5.

Aug. 5, 1952 c, FIELD 2,605,741

APPARATUS FOR COATING AND COILING METAL STRIP Original Filed Sept. 18, 1946 v 9 Sheets-Sheet 4 INVENTOR. CROSBY FIELD A TTOZNEYJ'.

g- 9 c. FIELD 2,605,741

APPARATUS FOR COATING AND COILING METAL STRIP Original Filed Sept. 18, 1946 9 Sheets-Sheet 5 3 \iW a xx Ws uumwrwl zzvmvrm CROSBY FIELD "W w ,m kn umx I ATTORNEYS.

C. FIELD APPARATUS FOR COATING AND COILING METAL STRIP 9 Sheets-Sheet 6 Aug. 5, 1952 Original Filed Sept. 18, 1946 INVENTOR.

CROSBY FIELD A TTORNEYS.

flew M a g- 1952 P c. FIELD 2,605,741

APPARATUS FOR COATING AND COILING METAL STRIP Original Filed Sept. 8, 1946 I 9 Sheets-Sheet 7 IN VEN TOR.

CROSBY FIELD ATTORNEYS Aug. 5,1952 c. FIELD 2,605,741

APPARATUS FOR COATING AND COILING METAL STRIP Original Filed S pt 18, 1946 9 Sheets-Sheet 8 INVEN TOR. CROSBY F I ELD m miuw Aug. 5, 1952 c. FIELD 2,605,741

APPARATUS FOR COATING AND COILING METAL STRIP Original Filed Sept. 18, 1946 9 Sheets-Sheet 9 (an m 5 EM ill" \IIIIL I 3Z7 In M w 1 Z f n? 1 3/0 W v i;

' I IIIIIIIlI/I/llllh7IIIllIllIIIIIIIIIIIIIIIIIllIIII/IIIIIIIII/I INVEN TOR. CROSBY FIELD W WHW Patented Aug. 5, 1952 UNITED- sra'r eis en ire-Ni;

eases-s es-cmmcasa ms SEERI P V misty-Fiat ma's. v originaiappiicaa mg 1.946 w t No. 69,7350; "Divided and vthis amtlicati oi JALu-iv 1 gust irabraia; Serial No... 44,007,": Gr at; e

7 Britain JulYZylS? The usual method of making steel andsimilara metal wools today in the Unitedstates for-commercial use comprises first the selection of a pr'oper'grade of steel; the grade is quite limited in its chemical and physical characteristics. The steel is specially fcropped,'rol-ledinto rods, and then drawn in-several passes into wire of No; 12 gauge, that is, approximately .106-inin diameter; In thisfashion cold working produces a steel wire that can readily be shaved by serrated'knives; producing achip of-- the strength and resiliency required The chips thus ob tained are called-steel wool.

For numerous reasons, some of then-i obvious, a wire mustbe guided throughout its course while being s havedyhence it'cann'ot all be' sha ved but a small amount of its cross section must be discarded as scrap. Because of this uncut portion the commercial yield of metal wool from wire rarely exceeds-80 percent, althoughin some of the machines I have invented a higher yield than 80 per cent has been obtained. By yield is meantthe weight of the wool-produced divided by the Weight of the wire put into the process. One object of my invention is-to pro- 'vide a practicable machine whereby the yield 'of wool may regularly be made to apprach-100 per cent.

Stripstock may be produced by processes that a are less wasteful and less costly than those employed in the production of wire stock. Another object of my invention is to provide a method and machine for the cutting of wool fromstrip stock. 7

Because of the large number of knives required to shave in a single pass a wire approximately .106 in. in diameter into wool'havin-g, its widthwise dimensions varying from about .0002 in. to about .007 in., a singlepasswire shaving machine mustbe large andcostly. Any changein thewire shaving process which does not reducethe efiiciency northe capacity 'iof the 'machine,,.because of technological reasons would require anincrease in the cost of thewire stock or of -the'wool manufacturing. process itself. One of the objects of my invention, therefore,

1 clai s (or. l18,4195) 0 wherein the-various knivesiformgpairtsi i stockmaterial consisting .oi metal strip "set forth 'inthe claimifl n. :thei' qeiia a e give f pufpp es is toprovide "a n'ew -tyl e -ofz machine" \yl iigh; is small but which is capableofblar e ontD high efiiciency from inexpensive; stool; gmfilfi llals. Agreat difiiculty mine manufactured-s .9 wool by existing processes-lies ingmainta ing fineadjustments to the knives seas 17050 in uniform chip. A furtheiuobjective ofomy tion resides in the provisidnlofiaieonjst tary floating assembly which-automaticall y adjustments andeliminatest the need film 1 103 tinuai individual adiustmentswtoi the. k

A "still- :further, object; of this; invention increase of production; obtain d; in the A relatively wide cutting tools by theiaplll" tio n of air-blasts which not. onlyicool-thei 5 at the point of contact with thegknifegbutialso cool the cutting edges of the; knives, Thei'rblasts blow away-any very fine chips or dpstiancibidahfififli these and other factors a relativelyzgh h,-cutting speed may bemaintained. s

For certain classes of trade it is; desjlla gll t9 produce a mixturero'fimetalt wool; with 3 591111131- gent-eompound such as :a: soap." t practice is to manufactureethe wool pound separately and v thenv toemix; them Qne of the objects of my inventionis toipro; eqa cap or other compound andiaimachine ion-pperat; ing upon this stock material to obtainidirectly the desired'endproduct.

One of the furtheitlobiectsl'bfi: my to provide a methodioii andyapparatu fol; the production of:mixtures .ofimetal woolsazn tll r plastic, semi-plastic, 'jelly'fllikfiy or; soli i'cognr intent on is pounds.

Additional objectives will be in part. pointed-put as the description proceedsand will in part become apparent therefrom. The invention accordingly 'consistsgm the features iofi construction, combinationsoi'elementsy arrangements of parts and methods iot-operationswasciwil1:ibe;;ex-

emplified in the structUtesaand 'sequenceszand series or steps to-b'e hereinafter- .indicatedrand the scope of the application of which'ppzil'leioe In this specification and the accompanying drawings, I' have sh'ow'nand; describediaepreferr ed "embodiment of my invention and suggested yarious, modificatiens thereof}? biit it :is to be understood that these arefnot intended to be exhaustive nor limiting ofthe invention, "bill;

illusatio in-.. d r1fl a hers s l ed rf may-fully understand the invention- -and" -th'e after a coil of metal strip S. This strip may or may not have layers of soap or compound coiled within it as in turn also will be described more fully.

About vertical shaft 22 is a heavy casting in the form of a spider 44; this spider is free to move vertically but is held against rotation by a torque arm 46 (see also Figure 3).

Figure 2 is a side elevation taken along the line 22 of Figure 1;,

Figure 3 is a plan view of the machine with parts removed taken along the line 33 of Figurel;

Figure 4 is a fragmentary plan view showing some of the details illustrated in Figure '3;

Figure 5 is a fragmentary view on an enlarged scale of an air nozzle and bafiie assembly shown in Figure 3;

Figure 6 is a fragmentary view on an enlarged scale of an oiling assembly shown in Figure 3;

Figure '7 is a fragmentary view taken along the-line 1'|of Figure 1;:

Figure 8 is a fragmentary sectional view taken along the line 88iof Figure 3;

Figure 9 is a view taken along the line 9--9 of Figure 8;

Figure'10' is a fragmentary view taken along the line l0'l0 of Figure 1;

Figure 11 is a sectional view taken along the line ll-ll of Figure Figure 12 is a plan view similar to that of Figure 10 but showing the parts in combination with a strip winding supporting mechanism;

Figure 13 is a view taken along the line l3- -l3 of Figure 12;

Figure 14 is a plan view taken along the broken line l4l4 of Figural;

Figure 15 is an elevation, with parts broken away, on an enlarged scale, taken along the line l5l5 of Figure 14;

Figure 16 is a view taken alon g the 1m l6--! s along the line l8-l8 It will be noted that torque arm 46 carries two roller tracks 48 which cooperate with two similar roller tracks attached to the spider. Between each of these pairs of tracks lies a bearing strip 58 consisting of rollers held in retainers as is well Figure 20 is a fragmentary elevation on an en- Y larged scale of a clamping construction. used in the strip winding mechanism;

' Figure 21 is a plan view of another strip winding mechanism embodying the invention; and

Figure 22 is a view taken along the line 22-22 of Figure 21.

Wool cutting a flexible coupling 30, a gear reducer 32 and a jack shaft 34 (see Figure 1).

The jack shaft has its longitudinal axis vertical and is held in base 20 by ball bearings 36. At its upper end it carries a pinion 38 which meshes with a ring gear 40 attached to rotor 24. Rotor 24 is provided with a rim 42 which rim carries securely fastened to it ina manner to be described hereinknown. Thus, spider 44 may nonrotatably rise and fall on shaft 22 with very little friction.

When in cutting position spider 44, and the cutting mechanisms, shafts, and other attachments to the spider yet to be described, cause it to press upon strip S through a multiplicity of cutting tools K. Additional weights 52 (see Figure 1), may be placed upon the spider to increase the force with which the knives press upon the strip. Each knife K is held in a tool holder 54 (see Figures 8 and 9) which tool holder is securely attached to a tool holder base 56, free to turn on a tool holder shaft 58, which shaft in turn is securely held in spider 44.

' Tool holder 54 and tool holder base 56 are secured together by cap screws 68 and dowels 62. Tool holder shaft 58 is tapered where it fits into tool holder base -56 and, as both mating surfaces are accurately ground, it will be seen that the tool holder is accurately guided. The pressure between the mating surfaces is controlled by a tool holder rear nut 64 and a tool holder front nut 66. The knife K is securely held in tool holder 20 by means of wing screws 68. When out of cutting position the tool holder is held upright by a pin 10 which slips through a hole 72 in the upper ledge of spider 44 and into a hole 74 in the top of the tool holder, thus preventingturning of the tool holder by the action of springs 16.

Tool holder base 56 carries a plurality of spring holder bolts'TB, each of which supports a spring holder 88. Each spring holder supports one end of a spring 16 (see Figures 8 and 9). The other end of the spring is held in another spring holder and a spring holder bolt 18 in the base of spider .44. These springs are adjustable by spring holder bolts 18 and spring holder lock nuts 82 so that the pressure imposed by the edge of any cutting tool upon the surface of strip S may be varied.

A number of cutting tools is provided so that by means of springs 16 the total weight of the spider and accessories is floated upon the surface presented by the edges of coiled strip S. In the present embodiment twenty of the cutting assemblies are used.

Wool take-017 The machined fibres, whether coated with soap or detergent compound or lubricating oil or cutting oil or not, are gathered together into bands or ribbons as indicated at W (see Figures 1 and 14). The equipment provided for maintaining the travel of ribbons W is shown in Figures 1, 7, 14, 15 and 16.

The bands of metal wool from each cutter are led (see Figures 1 and 7) over idler spools 84 having flanges 86and freely turning on shafts 88 held between collars 90. .Each shaft 88 in turn is held in a pivot 92 which is adjustably held by bolts 94 to another pivot 96 supported either 'by a short link 98 or a long link I00. Thus the product of metal wool' 'a'nd' at a"higher' spee d.

y takiafiyanei dsirediverticalljiof shat hofi iontallyl? order to a'vdid' interference l among-these shafts andtheir" links, vsnou spacers'l I -Iareprovidedbn"studs I 02' so that the vertical distances may be varid' p )1 v shafts 88Tale carried by the links just nlil tiondbn' a'hubf m which in turn is carried ion;

a vi'tie'al shart'msiser'ewea into" apm' I 081 attached to the 'interioi bfvertical mart :2; .By meansor set screws 1 of the position of mp 104 on H dic'a Alt d-m I I vidualfspools4, understoodthat rm y gather amnespwr he wool from several knives;

wi was if fIIdes'ire' a heavier ribbon 'fora articular end;

The; other endfoff wool ribbonjw{is 15d ever spt Jol'sf 84,1 a'sstatedlandtlience (see Figures-i5 and 'l'fifbetween pairsof rollers I I 2 andi'IIfipassing first'thro'ugh a funnel guide I I6 attached to a frame II8 Frame IIB 'holds bearings Izll for rollerl III Funnel gfiidellfi'ishelcl'toframel I8 bylugg'riveted thereto by rivets I22. and screwed to frame-II Bby screws IZ l-Q v H I Roller II4 is turned by a sprocket L126 driven by 'a' chain ,I26Yfromla sprocket I 3fl carried on a shaft I321 Thisshaftin turn :(see al Figure I II jL Y m te enita end hemes sh 's' I3 6-. shaft I32is driven by a'sprocket I38 turned byia chain I 39 driven by'a, sprocket I 4i] mounted v roller is driven:

Tension omthe-wool-ribbon isanaintained by eans of. -hea n lo :IW din in, g oov ini frame I I8; A spring block llzalso slides inhee oo e a i ep f e j v nsta 1 wardsby means, of a spring I I4; acting between Itwill be noted 'in Figures 3 and "smi ten-air.

jet nozzle I94 ends in a fan shaped'portionfor' blowing the air in a thin and' rela'tively wide jet, andI also provide anE-air deflector I96 attached to" jet nozzle -I 54by -arivet I98: (see Figure 5) Byjm an's' ofthe eflector I ay further control.

the direction and' turbulefice of the-air;

Jet nozzle I 9 1 1' includes ;a flange tab edgfor; machine-screws} 200 :by i neans of whlch it is p l, screwed onto an air feed o. umi ne ted an r".- feed" pipe-2061 This latter pipe was cast into spider-{44" at time of: manufacture and is so bent as to leave an endprotrudingl above-the edge of the casting This end is connected by a fle ib edixd fill th? r e I 0 as i downwardly through plug I38 sealing the top f 71 vertical shaft 22. V Pipe 2i fl extends through shaft 22 and-is {bent at elbow 2I2,-pass ing out of the verticalshaft bystub air line 2M. The stub air line -(see Figure 14) is connected with an air, compressor 2I6- driven: by; achain- '2I 8 andsprockets 220 and 222 on 'th'e-shaftsrof the driv-l ingvmotor 28 andcompressor -'2I6; respectively;

Oilsystenzw V When. I am cutting metal-wool in the absence l of any' detergent compound Imay use-a utting compound. a In such'cases, in'the presentembodi- -q mentQI put the compound into an oil pumpzzll (see Figure 14) driven by sprockets 'fllifland 228',

on vthe shafts of the oil pump and; the gear reducerrespectively;anddrive-chain 2 30; Upon eachrevolution ofthe shaft of the oil pump ia few drops of oilare forced into-- four separate bearihgblock lliand a-strapIIBI- This strap is attached to the lower end of frame ;I I3 -by.cap screws; The upward movement of spring block I.

,IIfis'limited by nuts I18 and I80 determining-v the position and travel of an adjusting screw I82.-

Lon'gitudi'nal top supports I (see also-Figure l) 9 aije'carried by plates -I 84 "supported on flanges I88v in turncar'riedyby vertical posts I901 Bolts and nuts 192 attach p ates? [8: 4 to flaIfgsIBB.

'Fibih'rollersj'ln ar'idZl l-fl th'woolfalls into receptaclesor isrolled 'onfa spool-or otherwise fed into shapingi'pr'packing" equipment, as is' well ur'ldefs'tb'bd' theaft." I

L Air'blast V ,I,Mar nasr l ii itr eb io ia f i re-" areers h e n ent-i 1 t (if-{contact between thiefserrated' edge' ofeach ct'ltting-knifafid the strip, rwuroptaina better is probably due in part to the direct cooling effect of the air and inpart'to keeping the'surfacesfof the "strip free fromfinedust' or other pipes, each of=which follows a course similar to that of the air piping; that is (see FiguresLB' and '6), up the-interior of vertical shaft 22, 1

through top i-plugI 08 and thence through flexible connections to oil feedpipesflz. Sometimes, as; when difierentliquids are-to be applied simul- 1 taneously to the strip,; it .is advantageousto pro vide a separate pump for each oil 'feed-lpipelfii all such' pumps may-readily-;be driven from a common shaft.= In the present embodimentfour oilers are used but more or less than four-maybe used. Itis to be observed that I .may use any, or all oilers? for distribution ofmetal 'preservatives or detergents-or fluids other thanoilw whichI desire' -tobe present either during "cutting or mixed through the wool product.

Oil feed pipe 232 ends in-.a' coupling -234which is screwed onto a shaft 236 'at its "hollow end and permits a right angle turn without'leaking oil-in accordance with coupling constructionswell understood in the art; Part wayalong shaft 235 1 a hole"238*is;drilled into the hollow interior portion of shaft'236 andconnected to this hole is a copper' tube 1407-; the copper: tube is then :led into a hollow casting-i24-2 and the end of the'tube 1 is "sea-ledaby a plug: 244. For a short distance 1 toward the outer end "of tube 240; I drill a row of small perforations 246 so that the'oil received from the oil feed pipe through coupling 234, hollow shaft 236, andcopper tube 240 may leave the pipeand impregnatea felt 248. Shaft 23 6 is" free 'to I turn m g pair of oiler brackets 250' mounted bn'the top'ofspider 44'. H n

In the illustrative-formjeach felt '248 isheld in ljcutting "by the weight? '0 I r ""beiiefiial ir'rtliaf it aids'iii' leading the"wool away from"the'stripj from which it'has-just' been cut with'a' constant I pro *=tect1ve casting -'242."-" Wlien'i however: it "is-"desired to free the surface of the strip forany purpose castings .242 may be 'swungupwardly and'b'ac'k abouttheir pivots; They 'may,,"of

course,remain in raised position whenlit'is' desired to out without the addition of any cutting compound.

.- Exhaust, system .1 7:.

Inthe production of metal wool at'high speed,

the temperature of the metal as it is beingcut" rises to a point that causes thecutting compound to smoke. In ordertotake care of this situation; and also to vent the dust, 'fine fragmentsof wool, and so forth, that are produced by the -'cutting,I provide (see Figures 1 and 2) a hood 252 consisting of light sheet metal having a semi-circular'fcross-sectional shape supported on an angle frame- 254.- 'The curved surface portion of the cross section facesjoutwards" from i the machine. The cylindrical opening thus provided facing the machine I cover'with a metal screen 256 "so that the air in passing through thisjscre'n is freed-of any larger solid particles and any wool which may accidentally be carried away by the air blast. The air and smoke pass from the bottom of hood 252 through a flexible canvas sleeve 258 connecting to a-rigid conduit 260 atta'ched (see also Figure 14) to the suction side of an exhaust fan 2B2 venting to the roof through a duct 2B4. l

Exhaust fan 262 is driven by a chain 266, passing over

sprockets

268 and 210, the latter being on the, reduction gear shaft and the former on I The exhaust. shaft issupported in an outboard bearing 212 held by the exhaust fan shaft.

foundation bolts 214. s It becomes desirable to take this hood out'of the way when loading the machine with strip metal strip containing a detergent compound. i use the equipment'shown in Figures 21 arid 22.

It comprises essentially a collapsible power driven drum 302 which, by its spokes, is carried upon a shaft 304 free to turn in bearings 306. Bearings 306 are attached to a channel frame 310 Ma soap tank 3l2. To this drum isf'attached a wide strip of metal Sw and two narrow strips $11. As drum 302 turns, these strips are tensioned and guided by two sets of rollers; 314 so that'the narrow strips windjup atornear the. edges of the wide strip.: Two'o'f the rollers 3l4g are carried ,in rigid bearings'iiiBiand. a third is jdisposed approximately half way*between.the, firsttwo and above'them in bearings 320 carried by an adjustable block 322 in' a" frame 324 under the'influence 'ofadjusting'screws 320 so that the tensionon the metal strip may be adjustably controlled. Wide strip S11) and narrow strips Sn, each one in, special coils from the rolling reel-or swift, as is well known 'mill, are fedfrom; a inthe art.

As drum 302 rotates, the soap or other solu- I tion ii -tank 3l2 isfpumped by a power driven pump 328 from the bottom of the kettle through an outlet nipple 330, pipe 332*and a valve 333 into a nozzle pipe-334 which, because of orifices in it near its bottom, keeps the" channel space between the two narrow strips and the wide strip-filled withsoap. The channel and soap" filling" are promptly wrappediabout the strip alreadyon drum 302 as the drum rotates in the direction of arrow Z.

Sufficient soap solution is pumped through nozzle pipe 332 so as to overflow and the over- 1 flow is collected in-kettle 3l2 and recirculated.

to becut or, for example, when adjustments or inspections are to be made. I support duct 252' and all parts connected with it down to the I flexible sleeve (see Figures 1' and 2)- on a structural steel frame comprising essentially steel plates 21B attached to angle frame 254 at one' end and at-theother connected to channel spacers 218. Each spacer is attached to longitudinally placed channels 280 by rivets 282.

At their ends channels 280 are welded to pipe guides-284 which surround and are free to slide upon'vertical supports 286. The weight of the hood and the longitudinal channels is balanced by counterweights 288 sliding channelsby cables 290 which in turn pass over sheaves 292, the shafts 294 for which are-carried in bearings 296- by bearing blocks 298 attached to upright-posts286 by-screws 300.

The "other end of the canvas duct is connected,

interiorly' of vertical supports 286' and connected to theas has been stated, to metal duct 260 and during operations is maintained taut against the differencein suctionpressure' within and the atmosphere without 'bythe location of hood 252.

If desired, the canvas may-be reinforced by' metal wire in a rectangular coil section to assist in preventing the sidesofth'e duct from being drawn inwardly during operation. Preferably the exhaust fan is stoppedwhenever the hood is to belowered. 2' ;l, 7

.H,.Feed There are two different types of material on which the present embodiment is designed to operate. These are coils of metal strip having soap or other compound included in them and plainmetal strip without any soap or compound. I

When it is desired to supply the machine with the kettle'with'an outside jacket 3-36.

Fresh soap solution from time to time is added to kettle 3l2. In order to maintain the soap solution at the right temperature, I surround Steam or hot water may befed into-the jacket from a source not shown through a" pipe 338 and a noZ'zlef340 andmay be returned to a heater through a condensate nozzle'3'42. In order to conserve heat I may surround my entire kettle sprung" inwardly by turning right and left threaded stud 346 and the coil of strip'slides off the drum. Stud 346 is then turnedin the opposite directionflso as to bring drum 302 back to its original shape and the drum is returned to itsp'lace over tank 3|2. 1 I

When a coil of strip has been shaved until only a small fraction of an inch remains for clamping to rotor rim 42, the'ma'chine' is stopped, the hood is 1owered,'and the tool holders are swung abouttheir shafts 58 against the action of "springs 16 and are locked in that position.

by" holdi'ngpins 10. Oilers 242 are swung to vertialfposition and hub I04 and shafts- 88 attached to it are removed.

fA'pinion348 (see Figure 3) is then slid along 1 a;splined shaft 350 until it meshes with a rack 352 (see also Figure 1).

Shaft 304 is then hoisted' 7 By means of a hand; wheel 354 turning apinion"356 meshing with a gear 35t,a

pairofgears

350 and 362 are driven.

:9 -Gear362 is carriedflon shaft35fl and hence hand power is transmitted to pinion 348 so thatit {climbs up rack 352 carrying the spider with it.

When the end of itstravel has been reached, a

sling is placed onthe spider and by means of a hoist (notshown) the-spider is lifted-completely off of shaft 22. The remaining strip is removed from rim 42. The fresh coil of strip. Swand Sn 1, is then laid edgewise on rotor rim 42 and held ,in position by, having its inside layersclamped v between a clamp point 364 (see Figures 10 and ll). anduan expander 36$:as expander set is forced upwards by the driving edge of a wedge 3 768. {Thebutside of the strip is then held by .clamps 310 pressed tightly against the strip by s 'cre'ws312 operating in brackets 314 held by cap iscrews 316 in ri-mv42. The clamping action is described more f ullyhereinaften 3 a reversal of operations the spider is rewturned toits position onshaft 22 and lowered in- Operating position ,on strip S. Pinion $548 is 1 lid, along splined shaft35ll from out of contact qwwith rack 352 intothe inoperative position. Before cutting, of course, holding'pins Hi are removed from each cutting tool to permit spring 'l6 to come into operation, oilers 242 are placed 7 in position as desired; and hub 14 with itsshafts [B8, are replaced. Hood252 is returned to its position opposite thestrip. Asthe firstcuts of wool come off they are gathered together by hand into a ribbon having theweight and approximate vn mb r .ofu rands desired, placed over spools 84,

,and fed; between revolving rolls H2 nd I I4;

gwhenit is desired to. cutjmetalstrip without f;ompound,' then it is-notpecessary to remove .spid er,AtirOmshaft' ,Instead hood 252 is 'jl lowelfed the tool holders jare turned out, of the butting positionrandheld in the inoperative posi- ,ctienby pins 10, and-the'spider raised, as has been described, to the top of its travellby pinion presses on rollers 4l6jheld inshafts 4Vl8 in turn held in bearings 4.2 in feed ring li and-"feed basket .408,.respective1y. The feed basket isthen raised by a winch 422.which winds cables 424 and slide on pipe supports'444 '426 passing over sheaves .428. I The, sheaves are lateral thrust I provide between top yokeji38 -and channel [60 angle braces-4 4 0.

Feed basket.,4ll8 carries b shingsr-4sz which J 6-; uide'ltheli'fe'ed basket inv its ,vertical motion. 'j Supports. 1444 are mounted in flanges- 446 fwhich' are I held I to floor by. means of foundation bolts 448. 1 Th top oi-whichthey: are attached'fto top yoke 4331,

'JWhen feed basket 408 has-been Praised to, a

op f rqt rr m 42,, 1th'egmotion 'is stop pied and feed basket, 4081s firmly supported in that location by holdingjclamfpscooperating with ports 444. Thereafter nuts .558 are tight 113148 onrack 352." Then at' three positions apv proximately 120'; de rees removed from each ether on the inside ofthe peripheries of rotorjrim -42 androtor 24, Iattach (seeFlgures 12 and l3) with. screws .378 an-arcuate guideplate 380. A

uide stop 382 pressing a ainst the ledgeion rotor ,rimAZ locates the position of guide plate asllrand -jof a, top guide384.

v Injorder that guide plate asu may not be bent V nor dislocated by, any severe strains which may n be occasionediduringwinding of. strip about it I e 51 91 0 it bran a sem rihcluding a d sti -fst,rain screw;.336 and aflpointed pivot .388 Pivot .4 ,388 fits into .anindentation in. rotorrz l near its center. Strain screw 386 is .threaded'atone end into a strain nut 39!) on pivot 388 and at its other end connectsrw-ith a link 382, which link in turn pivots about a pin 394 in a hinge 3% attached to guide plate'380 by screws '40:]. Guide plate 386 c has a slot in it through which a stud 402 from "top guide'384 protrudes. Thus, the height of top guide 384 may be adjustably locked by a nut then lowered to its position near the floor and a coil of strip S with its axis vertical is placed in it. A feed ring M9 is attached by screws M2 to In: order to reinforce top.

' themselv s .1.

- rim 42 under tension ,createdjnjtwo 1v. m dis) by ualbrakeidruin straining .force on plate, 4| 4 .as ,1

:sentially a clamp point 354, theposition of; w ich is determinedby 'thqsurtaces cut in rim 42 @nd supports 444. Each clamp (see FiguresZiQ land 20) consists of two U-shapedlparts 452, and 454 linked together at one end vbyuapi 5 511 other end is shaped to be drawn together by the action of a nut 458 on alocking boltjtfl; Bolt 46B is free to. turnabouta ,pivot.462. Theclamps are accurately leveled by pinsafi l jsee Figure 18) through selected holes 465provided i bolts- 4350 so that theiplamps are fri locked on the supp orts. The endp of rst then taken by hand andjtsfo ard ed e v on rim 421at one .of

Each st p "lamp sub ssembl yl'comnrises. e

l m i g! were byt e. loq i n ofa qintibasls r At ndees int edge 468. Thelocationrjof point paeji f'gss is s s me ns Oian v dii inss e ii a 'reta si n 1 latt che ie 111m: 4 :b me n etholtsflltsdthat slams .pqintfifi uprojects just a b t radially ma s: rre'nit e eutv side edge .of,th small ledge integral W e i th s osit on-lqb ptw se fl itli jrm giz.

t w l ibejunderst ed ha ,siux e r w i s e means of screws 31 at no pre ntass ssinw; ss gns:

found,.howeven thatin rnany casesitqis ea ble to l ve clams ilfi aei its seznb .thre turns harsh st nlaciilbn th :i. i. a then, all the expander yep-1g 353 are" driven until anss s i ifi m y clam they.

t e er ites and i i i in w eedu The .firsttensionis thaup ogv dea (s I 418 which rollers 'operate in horizontal shafts 480 held in feed basket 498 in holes hushed for feed basket 408 and the binding wiresrabout the coil of strip S are cut. The coil immediately unwinds slightly on a plate M4 until its outer layer 42." [Shaft 486 carries at one end brake. drum 116. The drum may be retarded by a brake strap 488. The tension between brake strap and brake drum is provided by a brake arm 490, the outer end of which is held by a holding screw 492 threaded into a hole tapped in feed basket 408.

Further guidance and the prevention of whip- I ping are provided for by tension placed on the strip as it leaves between roller M6 and a roller 494 carried in a pivot arm 496. The free end'of arm 496 is adjustablylocked by a pin 498 which fits into holes drilled in feed ring 4 I B.

When the strip has been wound except for the last turn on rotor rim 42, the motor is stopped at a time when the point, of tangency between the strip and the coil has just been passed by a clamp subassembly location. The clamp; subassembly is then placed in position byjholding screws 316 and the clamp itself is pushed forward by adjusting screw ,312 sliding on clamp guide rods 500 until it exerts pressure on the coil of strip. The rim is then turned slowly and stopped ,in positions such that each of the clamps 31!! may be screwed in place and tightened.

It is to be observed that two strips might be wound simultaneouslyinto a single coil on my machine. Thus, if one were stainless steel and one Monel, I would have alternate layersof the two metals and the wool cut would, correspondingly, be a mixture of the two.

By reversing the operations described above, guide plate 380 is removed completely from within the center of the rotor, the spider is lowered into cutting position, the tool holders are made operative by the removal of their holding pins,

the duct is raised, and the cutting cycle is started. When all the strip has been cut down ,to the point, where the cutters just clear the I.top of expander points 366 or point backers 466, T-whichever are higher, themachine is stopped, clamps 31B are Withdrawn, expander wedges 358 .are loosened and the very small amount of strip remaining is removed from therim and the, rim made ready as described for-loading a new coil l or strip either with or without compound or soap.

.As shown in Figure 1-, Iprefer to' erecta platform about the machine on which the operator may stand at a good working level from the cuttingtools. I also find it advantageous to conserve Iced baskets when Iv am runnin a' plant that cuts only metal wool without soap orother compoundby placing four machines 90 degrees apart (see Figure 14), using one feed basket at the center so that I may feed all of the four metal wool machines in succession from the same feed basket. Such a central feed basket would have I rollers M6 and 494 spaced therearound so as to supply the various metal wool machines.

From the foregoing it will be observed that wool cutting apparatus and methods embodying my invention are well adapted to attain the ends 1 .and objects hereinbefore set forth and to be 7 Number tion and as the art herein. described might be varied in various parts, all without departing from the scope of the invention, it is to be understood that all matters hereinbefore set forth or shown in the accompanying drawings is to be interpreted as illustrative and not in a limiting sense.

I claim:

Apparatus for winding metal strip into a coil having detergent compound incorporated in the coil between adjacent loops of metal strip, said apparatus including: drum means upon which a coil of metal strip may be wound, bearing means in which said drum means are mounted for rotation about a predetermined axis, a first strip supply means for feeding metal strip to be wound on said drum means, said first supply means embodying rollers mounted for rotation; about axes parallel to said predetermined axis, at least one of said rollers being adjustable with respect to another for applying an adjusted constraining force to metal strip being fed therethrough, a second strip supply means. for feeding a spacing strip to be wound with said metal strip on said drum means, said second supply means embodying, rollers mounted for rotation about axes parallel to said predetermined axis, at least one of said rollers being adjustable with respect to another for accommodating said second supply means to the thickness of the spacing strip being fed therethrough, said first supply means defining a metal strip passageway accommodating the cross-sectional shape of the metal strip being fed therethrough, said passageway having a width approximating the width of said drum means, said second supply means defining a spacing strip passageway accommodating thecross sectional shape of the spacing strip being fed therethrough, one. marginal edge of said strip spacing passageway lying in substantially the same plane perpendicular to said predetermined axis as a corresponding marginal edge of said metal strip passageway whereby a narrow spacing strip and a wide metal strip may be wound simultaneously with one margin of one coinciding with one margin of the other, to ,form a flat-sided composite coil, and a detergent supply means operatively associated with saidstrip supply means and said drum means to introduce detergent compound on a portion of relativelywide metal strip beside a relatively narrow spacing strip as such strips are simultaneously wound whereby the space provided by the narrow spacing strip between adjacent loops of the wide metal strip is filled with.

detergent compound.

CROSBY Fur-Lo.

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

UNITED STATES PATENTS Name Date 1,698,512 Robbins Jan. 3,1929 1,892,579 Kilner Dec. 27, 1932 1,905,916 'Leguillon Apr; 25,1933 2,146,809 Flint Feb. 14, 1939 2,240,114

Field Apnea 1941