US1188571A - Machine for constructing a laminated cohesive interwound fabric band. - Google Patents

Description

. L. A. SUBERS. MACHINE FOR CONSTRUCTINQ A LAMINATED COHESIVE INTERWOUND FABRIC BAND.

APPLI CA' HON FILED OCT. 22, 1913.

. 0w mm m 4 0H F m M V J H f d s 6 w j t a B 1W9 Fm MH N NN .L MM 257 v "nigim Z/Z/2'Z7'55555 L. A. SUBERS; v MACHINE FOR'CONSTRUCTING A LAMINATED COHESIVEINTERWOUND FABRIC BAND.

APPUCATION man OCT. 22. I913.

Patnted June 27, 1916.

I2 SHEETS-SHEET 2.

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. L. A. suBERS. 1 MACHINE roa comsmucrme A LAMINATED COHESIVE mrznwouun FA I APPLICATION FILED OCT- 22. 1913. I A 1,188,571.

BRIC BAND.

Patented June 27, 1916.

' I2 SHEES-SHET 3- MA I fiasses L. A. SUBERS. MACHINE FOR c'gusmucn'ws A LAMINATED COHESIVE INTERWOUND FABRIC smog 7' APPLICATION FILED OCT, 22. 1913. 1,188,571.

n0 1 n. 9 n 7 Av nm, Hu J. M m: .6 t a P mi W 57 L A. SUBERS. MACHINE FOR CONSTRUQTING A LAMINATED COHESIVE INTER WOUND FABRIC BAND.

{Patented June 27, 1916.

I2 SHEETS-SHEET 5.

APPLICATION FILED OCT- 22' 1913.

L.A.SUBERS.- MACHINE FOR CONSTRUCTING A LAMINATED COHESIVE INTERWQUND FABRIC BAND.

APPLICATION FILED OCT. 22. I913.

Patented June 27, 19.16.

I 12 MEETS-SHEETS.

q nw 1T "Q @wm arrzey' I L. A. SUBERS. MACHINE FOR CONSTRUCTING A LAMINATED COHESIVE INTERWOUND FABRIC BAND.

APPLICA LED OCT. 22, {913.

Patented June 27, 1916.

12 $HEETSSHEET 7.

TION Fl L. A. SUBERS. MACHINE FOR CONSTRUCTING A LAMINATED COHESIVE INTERWOUND FABRIC BAND.

APPLICATION man OCT. 22, ms. 1 1 ,188,571. Patented June 27, 1916.

\ 12 SHEETS-SHEET 9.

L. A. SUBERS. I MACHINE FOR CONSTRUCTING A LAMINATED COHE SIVE INTERWOUND FABRIC BAND.

I APPLICATION FILED OCT- ZZ, I913. I

1 ,1 88,571. V Patented June 27, 1916. I r" 5.55 'ZKHKQ o 0 K I X ,1 I; N m

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M55555 Jm, 35 .Zinrezzfar L.A.SUBERS. I MACHINE FOR CONSTRUCHNG A L AMINATED COHESIVE INTERWOUND FABRIC BAND.

Patented-Jam 27, 1916.-

APPLICATION FILED OCT. 22, 1913- 12 SHEETS-SHEET I 1.

ype/- I L. A. SUBERS. MACHINE'FOR CONSIRUOTING A LAMINATED COHESIVE INTEBWOUND FABRIC BAND. 1,188,571.

APPLICATION FILED QCT. 22, 1913- Patented June 27, 1916.

I2 SHEETSSHEET 12- Eire/21gb: 7 flzfarne 6 ITED grams ,a' 1 ma v -LAWRE 1\TCE A.'SUBERS, OF EAST CLEVELAND, OHIO.

MACHINE. FOB CONSTRUCTING A LAMINATED COHESIVE J INTERWOUND FABRIC BAND. I

I Specification of Letters Patent.

Patented June 27, 1916.

Application filed October 22, 1913. Serial No.1796,592.

To all whoma't may concern.

Be it known that I, LAWRENCE A. SUBERS, a citizen of the UnitedStates, and resident of East Cleveland, in the county of Guyahoga' and State of Ohio, have invented certain new and useful Improvements in Machines for Constructing a Laminated Cohesive Interwound Fabric Band, of which I hereby declare the'following to be a full, clear, and exact description, such as will en- -able others skilled in the art to which it appertains to makeand use the same.

The objects of the invention are to provlde efiic1ent and practical means for forming an unwoven, laminated, cohesive, 1nterwound fabric band, consisting of yarn ele-' ments, and in coating and permeating the yarn elements and band with liquid rubber or other adhesive material, the yarn elements being interwound andlaminated upona preferably hollow tube or mandrel to form a fabric tube which is afterward collapsed.

to a band form, having a selvage edge, the rubber being preferably solidified by evaporating the solvents contained therein,-by

exposing them upon suitable conveying devices to the drying influence of the atmosphere, or other drying agencies, so that the yarn elements and finished band are sufli ciently treated with coating material for the adhesion desired, and for vulcanization if and coating, the preferred manner of interw1nd1ng,lammat1ng, and coatlng the bands may be described as follows:

First of importance are the mechanical means employed for interwinding and-laminating the yarn elements at any predetermined angle upon a mandrel, so that the extensibility of the finished compressed band I can becontrolled according to the angle at which the yarn elements are laminated, as

for instance at 2,.4, 7, or 10 or'at a greater or less angle as may be. desired, or

a portion of the yarn elements may be laid parallel to'the mandrel by the non-rotation of the .reel upon which the same are stored.

The mechanical means include specially designed and constructed reels which rotate about a hollow forming tube or mandrel,

alternate reels rotatingpreferably opposite directions, to i terw nd'and laminate thereon, a series ofyarn elements, under a predetermined amount of tension. These yarn elements are stored on spools or tubes rotatably mounted on said'reels, said yarn elements being guided to and spaced about the mandrel at equal intervals. A series of adjustable spacing devices are important to the proper action of the machine and are employed when constructing bands havingdifferentangles of interwinding. In forming these laminated, cohesive, interwound bands at various angles by the several means herein described, slightly different forms of mandrels or forming tubes may be required, the lengths and diameters of the several portions thereofyvarying according to the angle of interwinding' desired.

Further features of the invention consist in means for impregnating the fabric band with the coating material and which comprise preferably a chamber'filled with the coatmg mater1al maintained under pressure V and through which the mandrel passes, and

force required. By nieans of this expansion the crossmg polnts of the yarn elements are changed, and also their normal angle to. the v I longitudinal axis of the mandrel is changed, so that the coating .material has access to every part.

Next in importance is a pulling device adapted to pull the fabric from the mandrel at a predetermined rate of speed relative to the rate of speed of the winding reels, and preferably consists of upper and lower metal against the-tension of the yarns and against the resistance due to the friction, upon the mandrel. .The' fabric band is' held between bands which move with the. fabric band the upper and lower metal bands, one or resilient pressure, and maintain a firm hold upon the band and prevent the distortion both of which are provided with projections and narrowing thereof under the pulling strain. Means are also provided for regulating the speed of the pulling devices, and separate means are employed for regulating the speed of rotation.) of the reels, thus providing two methods of regulating the comparative rates of speed of the winding and pulling devices.

An important feature comprises a series of drums and rolls over which .passes an endless belt whose speed is so controlled that vthe fabric band is delivered theretowith comparatively no tension, whereby its desired width is maintained, and-,while being conveyed thereover, the latter is exposed to the drying action of the air which partially evaporates the solvents in the coating ma terial. Means for quickly extracting the re- .maining solvents and gases in the coating material on the fabric band and which might necessitate long exposure to the air is provided by passing the fabric hand through a cham ber wherein a predetermined amount of heat desired.

and percentage of vacuum are maintained.

Also, according to the coating material to be treated, compressed air, or gas, or a mixture of gases with or without the application of heat or cold may be used therein to attain .the purpose desired. The solvents whichare evaporated from the coating material on the band and which inthe case of liquid rubber compositions are reduced to gaseous form bythe action of the vacuum drying chamber, may. be allowed to escape from the exhaust of the vacuum pump or may be condensed by the usual method'and reclaimed,- as'may bedesired.

Means are also: provided forproducing a predetermined amount of stretching of the ,fabric band so that its extensibility in a fabric made'therefrom can be controlled as A hollow, flat mandrel permits the passage of .a layer or ribbon of the adhesive material to the interior of the fabric band, or a band 1 of metal or other flexible substance may bepassed therethrough, with or without a coattherefon:

5 ing compound tn the interior of the fabric band providing a-permanent reinforcement The invention also provides means by which an adhesive coatmg of various compositions; maybe applied to the cdnstituent yarnsafter they have been interwound and laminated on'the mandrel and means for temporarily expanding the band to give access forthe'coating to all theyarns, and finally means by which a coating. of still. different composition or material may be ap-v plied tothe outside of the fabric, band if desired.

a Finally the invention "includes means for the finished fabric band upona suitable'reel'and for interwinding a band of non-adhesive material to rotect the coils of Q the fabric band from a f .The invention further includes the comering together. .1

bination and arrangement 'of parts, and

ee construetion of details, hereinafter further described; shown in the accompanying drawings, and the claims 7 In the accompanying drawings Figure 1 is a plan view of the complete machine showing the reels, drying mechanism,

vacuum chamber, stretching evice and winding devices; Fig. 2 is a side elevation specifically pointed out in of the same; Fig. 3 is a'face .view of the several spool carrying reels showing the driving mechanism therefor; Fig. 3 is a transverse section on line nn Fig. 2 showing the gearing arrangement for driving the reels; Fig. i is'a side elevation of the guide rollersfor the yarns; Fig. 5 is a longitudinal section of one of the spools and its I support; Fig. 6 is a detail view'of one'of the spring tension devices for the spools; Fig. 7 is a longitudinal section-of the mandrel and reels which rotate thereabout; Fig. 8 is a face view of one of the reels showing ball bearings therefor; Fig. 9 is a perspective view of one ofthe spool supports; Fig.

tion on line M Fig! 11 of the mandrel and "supports; Fig. 14 is a' transverse section on 'line 00.Fig. ll-of the mandreL-and Fig.

15 is a similar'section on line 6-?) Fig. 11; 'Fig. .16 is a longitudinal section of the coat- I in-g chamber showing the laterallyextended mandrel therein; Fig. 1'! is a plan view of .the mandrel shown irLFig. l6; Fig.1 18 is a transverse section of the mandrel on line Fig. 17; Fig. 19 is'a similar section taken on line e-e Fig. 19; Fig. 20 is a face view of the entering gateleading to the oating ehamher; Fig. 21 is a. section there. of taken on line f-f Figi 20;.Fig. 22 is a transverse section'of the coating chamber on line h'k Fig. 161; Fig. 23 is aperspective view of the various parts-of the outlet gate leading from the coating chamber;

Fig. 24 isa side elevation of thedrivingmechanism. fnr the various parts of, the machine; Fig. a face view thereof; Fig.

26 is a horizontaljsectien through the center,

line of the upper shaft; Fig. 26*

is a longitudinal section of 'jthe'expansion pulley shown in Fig. 26; Fig. 27 is a longitudinal "section" showing the propelling bands for the fabric band; Fig. 28 is a.

perspective view of a portion "of the upper band; Fig. 29- is a plan view. of the'drying device; Fig. 30 is'la' side elevation thereof; Fig."31 is a vertical section through the centerithereofyFig. 32 is a face view of spiral and spur w a; employed in the chamber; Fig. 38 is a transverse section thereof, and Fig. 39 is a longitudinal sec tion thereof; Fig. 40 is a perspective view of the principal parts thereof; Fig. 41 is a face view of the band stretchingdevice; Fig. 42 is a transverse section thereof on line gg Fig. 41 Fig. 43 is an edge View -thereof; Fig. 44 1s a view of the pressure levers employed in the stretching device;

Fig. 45 is a view of pressure applying means therefor; Fig. 46 is( a section showing driving gears fol-the winding device; Fig. 47 is a partial vertical section of the rubber pressure pumps; Fig. 48 is a side elevation thereof;Fig. 49 is a plan view thereof; Fig. 50 is a section showing the pressure regu-' lating valve. I

In these drawings the construction and 7 operation of thereels is in all cases shown to be the same and is illustrated in Figs. 1, 2, 3, 4, 5, e, 7, 8, 9, 10, and 11 in detail.

Here B, B, B andB are four reels arranged to rotate, 'one within the other,

about a central stationary standard B on' the frame B and supporting a tube Y for the passage of fluid rubber therethrough'. Theinner reel B (see-Fig.3) is. mounted upon the rollers B secured in the arms of the standard 13". Within the rollers B are secured the roller or ball bearings B to decrease the friction, thereby reducing thepower for operation. The rollers are mounted upon spindles B The other reels are mounted upon rollers B B having ball bearings 13, B and rotating upon spindles 13, secured in brackets B upon the bracket or frame B The spindles B and 13 upon which the rollers B and B rotate are eccentrically mounted to permit of fine adjustment of the reels so that they will operate in concentric paths. This ad justing means also permits of bringing the rollers B B and B B into' and out '-of engagement with'the reels so that the reels can be easily put in place or removed when desired. When .the rollers and reels are in engagement the flanges 13 on the reels en gage shoulders B on the rollers and the reels cannot be removed until the eccentric spindles are turned. Plates M, M, secure the outer ends of the. spindles B B Taper plugs B screwed into the split ends of the eccentric spindles B B clampthem to plate M, so that they cannot turn when th machine is in operation. A ring gears B and B on the respective first andv third reels B andB and rotate them in-the same direction. The other reels, viz. the second'and fourth, B and B are rotated in the reverse direction by means of the maron the short shaft B, the bevel .gear B on shaft B engaging gear 13 on the short shaft B 9, bevel gears B and B thereupon -respe'ctively engaging the marginal gear 13 on the second reel B and marg1nal gear-B on fourth reel B. Uponeach reel is mounted a predetermined number of rotatable spools C, C lipon which the yarn elements composing the band are, stored for use.

.ginal gear B engaging the bevel gear 13 These yarn elements in the fabric described consist of flat strips composed of groups of loose yarns-lying parallel to each other and of a predetermined number and diameterand are applied to the mandrel as the reels revolve about it, all the spools beingfilled with similar yarn elements composed of loose yarns equal in the number of yarns so that all the yarn elements which compose the band will be exactly alike. Thespools are adjustably secured to the reels by means of stems N slidingly movable in transversely grooved bases N and clamping nuts .N as shown in Figs. 5, 7 8, 9 and 10, and

are spaced thereon in such a manner as to apply the yarn elements in equally spaced rows upon the mandrel, to form the laminated-cohesive-interwound band. --In each spool theyarn elements are wound upon a tube N as shown in Fig. 5 which can be forced by light pressure upon a special tube N? having one or more longitudinal slots N and slightly expanded to provide the 1 "spring pressure to hold the spool C and having at each end self-lubricating bushings N N which bear on the stem N on which therefore the spool C rotates. arm N pivoted upon apro1ect1ng' end N A locking 7 of the stem N and engaged by apin 'N vpressed by a spring N longitudinally securedin thestem N holds the spool G from coming off the stem N but when turned to the position shown in dotted lines Fig. 5

permits the spool and tube N to be-with-- Y drawn.

- Elongated guide rollers C, C, (see Figs. 3, 4, 7 8' and 10) first receive the yarn elements from the spool and guide them between pairs. offlanged and spring pressed guide rollers C C? and R R the spring R providing a predeterminedv amount of tension, and thence to the flanged guide roller C O? rotatably mounted upon the radial rods 0 C The rods 0 extend across the faces of the reels and are spaced out" from the ,faces of the reels and from each other so as not to interfere with each other'as the reels revolve in the opposite directions. For convenience in gaining access tothe spools the rods G are set substantially directly over each other on reels rotating in the same direction. If the rods are spaced out too far apart or not far enough apart the yarn :ele'-- ments will overlap, depending upon lthewidth of said elements and the diameter of A coiled spring N mounted upon a stem IN and adjustable by the set collar N operates the sleeve N to which is attached a pressure finger N which rests upon the spool of yarns and exerts a'constantly decreasin amount of pressure upon the spool,

as the diameter of the spool decreases, and hence provides a practically constant tension upon the yarns ,as they. pass to the mandrel. 1

v as shown in Figs. 1, 2,11 111112, the 111-- .ternate reels rotate in opposite directions and the rods C, C from each reel shown as four in number aresecured at their lower ends to rings F -F 'The four guide rods G, (1*, are secured to. and equally" spaced 1 aboutthese rings and the rollers 0 pass the yarn elements F inside the rings F F which form the supports for second and third guide ringsF, F and F F.- Rods F F connect the'rings'for each set of guide rodsC 1C The'guide rings F9, F",'are provided with four channels F, F on their outer faces and guide rings F", FQ'a're provided with four channels F F5 on their inner .faces, through which the yarns pass directlyto the mandrel A at the predeten' vmined angle. The channels F F5 are so {expansion-of thefabric has the further useful arranged as to bind the yarn elements and -i revent them from slipping or' drawing side .w1 se out1of proper alinem'ent and yet per-' -m1tt1ng them'to, be pulled 'freely; ofi' from broughtasinejar tofthe' surface of the mani drel A asjthe angle of winding will permit and are spaced apart at a'predetermined dis- The yam elementsare; guidedto the hel mandrel' A by means described, and.

by meansjof the pipe The forward extremity of the mandrel is free for the pasvalve is operated by rods F F which pass through stufing boxes F F in the hollow head F into which the inlet pipe 'D 'for rubber leads. Openings-F permit the coating material to surround the valve so thatit will not stick. A guide tube W permits the passage of a. metallic core W into the hollow mandrel A when it is desired to insert the core intothe fabric band. QT-he metal core passes through a stufing box W and. is coated in the hollow mandrel. These rods F F are manually operated by a cross bar F 9 allowing the passing of rubber through the mandrel when the ,valve F is opened, and shuts ed the flow of rubber when the valve is closed.

The preferred form of hollow mandrel is clearly shownin Figs. 11, 12, 16, 17, 18, and 19, where A' is the cylindrical portion over which the fabric band is drawn and upon which the fabric is constructed, as described above. A, A are oppositely placed lateral extensions or widened portions of the man- 'drel located. thereon within the coating chamber, and A, A are similar oppositely placed extensions upon the mandrel formedpreferably at right angles to the extensions A, A; The mandrel flattened at itsextended or widened portions and also at its outer extremity/l, passes through the rubber receptacle and asthe fabric band passes over these extensions it is'first expanded in one direction and afterward in another,- which .hasthe useful efiect of temporarily separating the fibrous strands and elements so that the rubber coating will have access to and coat the entire exposed surface thereof. The

efi'ect of temporarily changing the relative angles at whiclijthe yarn elements cross each other and thereby exposing the surfaces of the "crossing points to'thevcQating-material, so

that no spaces. or corners be left unicovered and 'the'zrubberbe thoroughly .incorporat ed wi th all portionsof the layers '0f the fabric. :jThisaetion of expansionloy I the lateral extensions AfandlAflmay be re-- 1 peated by successive series of lateral extenw sionsuntil the fabriclband sufiiciently coatedsforjthe pugpose',desired. The expending devlces in each pair have their. ex-

tremities inclined and. slightly-overlap the extremities of theadjacent' pair ofe'xpanding' devices. construction enables the fabnc'to pass 1-: y from one set ofexpanding devices to another and to remain under a certain amount of tension all .the time. 7

The liquid rubber 'or other adhesive material is stored in suitable tanks 5, connected with suitablepumps J J, to the pipes D and D respectively. The rubber applying receptacle 1, (Figs. 16, 21,and22) is pro- Videdwith a resilient closure where the cylindrical portion of the mandrel enters therein, consisting of guided slidin g sections F F controlled by one or more springs F This closure makes close contact with thefabric band as it passes over the mandrel into the rubber receptacle, and prevents the liquid rubber from escaping, yielding sufliciently to allow a knot or other small ob-- by means of a pulling roll P shown in Figs.

' Wheels W and W and sprocket wheels W and W mounted respectively on shaft W.

29 to 31 inclusive, over which it passes after leaving the coating chamber, and by means of flexible metallic bands P and P between' which it is compressed. In order to grip the fabric band firmly and not squeeze out the coating material therein, the upper metal mand P is provided with projectionsP P on its inner face as shown in Figs. 27 and 28, which grip but do not injure the band. The upper metal band P passes over the guide rolls P P P, P and P and pulling roll P, and the lower band P passes over the guide rolls P P, P and pulling vroll P, I and the metal bands inclosmg ,the fabric' band F between them pass between the stag vgered rollers P P which compress them tightly together so as to carry the fabric band withthem. The lower band 1? separates from the fabric band F and the upper metallic band- P. on the pulling-roll P, while the upper metallic band P separatesfrom the" fabric band 'on the roll P the fabric band F then being carried over the drying roller Q, the drums Q, Q Q and the rollers Q, Q, and Q", Q by the metallic endless conveyer band Q The construction and mode of operation of thedrying rollers and drums may be described as follows: Sprocket and roll P together with chains W, W- rotate the pulling roll P. The three driven rolls or grooved drums Q, Q and Q are operated to move in unison by means of the train of gears q, 9, g g and the shaft and the spiral-gears Q 'HIId. g operated by the shaft R, which passes in the rear of the machine. The shafts Q of the'grooved I drums Q, Q Q are'parallel and inclined and over all the grooves of these drums passes the flexible band or tape Qto which the extremity of the fabric band is first attached until it has been wound over all the drums and rollers of-the drying device, when it can be fed through the remaining devices of the machine. The endless flexible band or tape Q after passing around all the grooves in the-drums Q, Q and Q and rollers Q, Q,

and Q is led around the idler rolls Q, Q, Q, and Q T'to'the roller Q in line with pulling roll P. The groove idler rollers-Q, Q and Q are rotatively mountedupon their bushings. At a point distant from the first'roller in the series, a nozzle R dis charges a coating of predetermined density upon the outer surface ofthe fabric band,

the amount being-regulated by. the needle valve R the coating being supplied through the pipe D from the pump J. The relative speeds of the pulling device and of the drying rollers and drums can be regulated to accommodate the amount of shrinkage of the fabric band on the drying device by means of the expansion pulley 2 (see Figs.

24, 25, 26, and 26) upon the driving shaft- R from which the shaftR which drives the drying mechanism receives its power. After passlng over the drying rolls the band passes if desired through the vacuum chamber G. In the chamber G a vacuum 1s produced as nearly perfect as practicable by suction through the tube H. In this chamber the"v solvents in which the rubber coating has been dissolved are evaporated to a predetermined degree. A coil of steam pipe H or any other suitable heating system-furnishes heat to assist in the evaporation of the solvents from the liquid rubber .or other adhesive material used on the laminated band.

In Figs. 35 to40 inclusive are shown the vacuum chamber and its inlet and outlet gates. Here K and K are the upper and lower halves of the inlet and outlet gates inclosing rollers I I between which the band passes to exclude the outer air, the

lower half of the casing being madeslightly adjustable on the upper half by means of aspring pressed pin K* and an adjusting screw K which engages the spring K con- ,fined in an opening K in the bracket K the rolls. The partial rings'K and K of arguto or other self lubricating material, since free oil would be detrimental to the I rubber on the fabric band, form bearings for the rolls K K The upper half of the gateK is secured to the wall of the chamber G by screws K", K, while the lower half of the gate K is adjustably securedto theupper half K by gibs K11", K which he held by screws'K 4 K After passing through the drying. chamber the fabric band passes through a stretching device shown in Figs. 1, 2, and 41 to inclusive. HereT, T are grooved rollers, one of which'T is larger than the other, over which the fabric band passes, and by means of which a certain amount of stretching capability is removed from the band. The result of this operation is to produce a band having the exact amount of stretching capability left in it which when it is incorporated in the fabric will make the fabric capable of expanding to the desired degree. To effect this result the band first passes over the smaller roll T and next over the larger roll T and is compressed against the grooved surfaces of the rolls by means of the smaller guide rolls T? and T and spring pressed levers T ,-T Adjustment of presv sure is made by the rods T T over which the springs T, T are sleeved, being screwed into the standards T, T and locked in position by the nuts T T T and T are flanged idler guide rolls. The rollers are operated by means of sprocket chains T sprocket wheels T, T and idler T spur gears T, T T T and bevel gears T T and rear shaft R. Details of the lever and spring tension are shown in Figs.

and 45.

After passing through the stretching device the fabric bandis wound upon and X' shown in Figs. 1, 2, and 46, which is operv ated by means of the shaft R and bevel gears;

X and X and a band of Holland cloth or metal mounted upon-an adjacent reel Yr -is interposed between the layers of the band to prevent them from sticking together. The reel X is driven by the spring ressed key X 'in the shaft X engaging the caring surface X of the reel X. The mechanism for operating the variousportions of the devices are as follows: 6 is the main drive shaft. This shaft through clutch 24' operates the reel driving shaft 7 standard 15. By changing gear 11- mounted on the lever 65, the reels may be driven at which in turn operates the reels through the bevel gears 8 and 9. The shafts 6 and 7 are. operatively connected by means of spur gears 10, 11, 12, 13 and 14 mounted upon a different speeds for winding the yarn elements at difierent angles. R is a shaft mounted upon the standard 15 and is oper- 'ated from the main shaft 6 by the spur gears 31, 30, 29', 28, and 1 4. Shaft R maybe i driven at different speeds by changing gear 30 mounted on the lever 66. The shaft W is also mounted on the standard 15 and is operated from shaft R by bevel gears 41 and 40. The propelling roll P is actuatedfrom shaft W and therefore diflerent speeds of propelling" the fabric band on the tieacvi mandrel may be obtained by substituting difi'erent gears in place of gear 30. The

-shaft R is driven from the shaft R by means of the expansion pulley 21 and pulley 22 and belt 23. A belt 50 from the main shaft and pulleys 51 and 52,- operate the pressure pumps for rubber. Two pumps are employed, one of which supplies fluid coating material to the inside of the tubular -m'andrel and the other provides fluid coating material to the nozzle which coats the exterior of the fabric band, and also to the be varied to suit the shrinkage of the fabric band on the drying rolls Q, Q Q and drums Q, Q Q the pulley 21 is made expansible by means of a split rim having inwardly inclined conical surfaces R against which a flanged head R engages to spread the free end of the split rim. The flanged head R is longitudinally adjustable upon the screw threaded shaft R, A sleeve R keyed to the shaft R cooperates with the movable head to spread the rim, and the rim is caused torotate by means of the pin R engaging the slot R in the sleeve R The suction pump 60 exhausts the air from the vacuum chamber G, through the pipe H and is operated by a belt 61 from the main shaft6 moving over pulleys 62 and 63.

In Figs. 1, 2, 47, 48, 49, and 50 are shown the detail structure of the pumps J, J.

a common worm J ,'and J J are the rotating gears whose teeth act as plungers to force the coating material through the pipes which lead to the mandrel and exterior coating device respectively J is the standard which supports the pump casings J 5, J The valves J J regulate the pressure-of the rubberin the pipes D and D "by means of the spring J and the screw I threaded, rod J which is adjusted so that when the pressure in the pump reaches a predetermined amount the valve J lifts and allows the excess rubber to flow back into the tanks 5.. i

It is evident that in this machine any desired form of material other. than that herein specifically described may be used as the' constituent elements of the fabric band. It is also obvious that any suitable adhesive substanceniay be used to coat the elements 'composing this fabric'band and may be applied at any predetermined high temperature with or without vacuum for solidifying the same, without departing from the spirit of the invention or scope of the claims.

I do' not confine myself to the exact arrangement of the various mechanical parts, provided any modifications would be of material advantage in the development and perfection of the machine as outlined by the drawings and, specifications of this machine, nor do I confine myself to the use of a liquid rubber or'other liquid adhesive material, but may use this rubber or otheradhesive material in any other form desired.

for the purpose indicated.

It is evident that wherever it is desirable, for the purpose of reducing the friction of the yarn elements while being interwound and laminated on the forming tube to form a fabric band or for softening the coating material on the yarn elements or on 'the fabric band as it passes through the various coating devices or other parts of the 1 machine, any solvents such as naphtha, benzol, gasolene, etc., according to the nature of the coating material used, may be applied in any desired manner, without departing from the spirit of the invention or a scope of the claims.

. It is obvious that one or more of the four reels may not rotate, so that a predetermined number of the yarn elements may be laid parallel to the longitudinal axis of the mandrel, while the remaining wheels rotate and wind the yarn elements on the mandrelat a predetermined angle, without departing from the spirit of the invention or scope of the claims. It is also evident that the reels may be mounted singly in successive positions along the mandreland rotate thereabout when a high speed of rotation and production is required for, certain bands in which the yarn elements are wound at a wide angle, without departing from the spirit of the invention or scope of the claims.

It is also obvious that any other suitable mechanism can be usedto pull the fabric band from the mandrel, without departing from the spirit of the invention 'or scope ofthe claims. r

It is evident that. the vacuum or heat chamber may be so extended and enlarged as to inclose the complete band forming devices, Without departing from the spirit ofthe invention or scope of'the claims.

It is obvious that suitable mechanism may be employed for automatically stopping the machine in case a spool of yarnsbecomes exf hausted or in case a yarn breaks, or in case the fabric band itself breaks or becomes entangled in the operating mechanism, with-' out departing from the spirit of the invention or scope of the claims.

It is obvious that the construction of the mandrel may be modified to, suit special conditions of interWi-nding and lamination of the yarn elementsorof the passage of coating substance therethrough, without departing from the spirit 'of the invention or scope; of the claims.

It is evident that any desired number of reels may be employed, or any number of spools maybe mounted on any or all reels, and that any number of close lying parallel yarns may be wound as a unit on a spool for the purpose of making different fabric bands of the same general construction,

without departing from the spirit of the invention or scope of the claims.

It is obviousthat-suflicient reels may be employed to construct a band of any de sired number oflaminationsorflayers of yarn elements, without departing from the spirit of the invention or scope of the claims. 4

By. the term yarn element as used in these specifications and claims is meant a group of close lying parallel yarns or threads of apredetermined number and diameter forming a flat band, but other suitable materials may be utilized according 2. In amachine for forming a band composed of interwound cohering laminated groups of close lying parallel yarn elements, a rigid hollow mandrel open at the outer end, reels rotatable about .the mandrel, spools on said reels upon'which said yarn elements are wo und,, guides on said reels adapted to direct the. yarn elements to said mandrel, a device for supplying fluid rubher or other adhesive material to said mandrel and thence to said'yarn elements, a pulling and flattening device for the band,

va main shaft. and mechanism operatively connecting said shaft and reels and pulling device. I

3.- In a machine for manufacturing a flat laminated band ofceliering interwound groups of close lying parallel yarn elements guides alternately. .in opposite directions.

and for saturating the same with fluid rubber or other adhesive substance, in combination, a hollow mandrel, reels rotatable alternately in opposite directions about said mandrel, spools carrying groups-of yarn elements thereon, guides for said groups of yarn elements, means for injecting fluid rubber through said hollow mandrel to saturate said elements; a flattening and pulling device for the fabric, and operating means for said reels and pulling device. I

4. In a machine for manufacturing a flat fabric band, and for saturating the same with rubber, a stationary hollow .mandrel,

reels rotatable about said mandrel alternately in opposite directions, thread spools and guides for the thread thereon, means for injecting fluid rubber or other adhesive material through the mandrel intothe fabric 1 band, means for flattening thetubular fabric thus formed into a band, means for drying the same, means for winding the completed band and means for automatically operating saidjreels-and pulling devices. j I

-5. In a device of the character described,

. the combination with a stationary .mandrel and a series of reels rotatable thereabout in opposite directions, of a series of guide rods depending from each reel and rotatable therewith, a support secured to each set of guide rods, and a channeled guide member secured to each support.

6. In a device of the character described, a mandrel, a series of reels rotatable thereabout in opposite directions, an annular guide support operativelyconnected with each reel, a series of channeled guides secured to said support and encircling said mandrel, spools for storing flexible'elements upon said reels, and means for guiding said flexible elements from said spools to said channeled guides. v

' 7. In a device of the character described, a stationary mandrel, a series of reels rotatable about said mandrel, a series of spools thereon, a guide support connected to rotate .with said reels and a' series of channeled guides encircling said, mandrel A and connected with said supports.

8. The combination with a stationary mandrel, of a series of guide supports rotatable thereabout, a series of spaced channeled guides having guide channels alternately ontheirouter and inner faces, said guides spaced apart, and secured respec-' tively to said supports.

9. The comb'nation'with a series of rotatable concentric guide supports and a. cen' tral stationary mandrel, of a. series of channeled guide rings secured to said supports, and outwardly spaced therefrom and from each other, the guide channels therein being formed alternately on theinner and outer sides of said rings, v

10. The combination with a mandrel of annular guides for yarn elements rotatable thereabout, said guides ,spaced' apart and provided with guide channels, the outer an-' nular guide approaching more closely to the surface of the mandrel, and having the guide channels therein arranged on its inner face. r

. 11. The combination with a mandrel, of a series of spaced guide members for yarn elements rotatable thereabout, the last guide member of. said series being brought more closely to the surface'of the mandrel than the other guide members.

12. In a mandrel on which a. hollow,

one end, the opening therein extending therethrough.

14. In comblnation, in a mandrel on which a hollow fabric band is constructed, a flattened hollow mandrel body supported at one end, and sets of dGVIlCQSl oppositely placed upon the mandrel for expanding the fabric, one set of expanding devices arranged at an angle to another set, and a receptacle for fluid rubber through which the mandrel and expanding devices pass.

I eachother, said mandrel being supported at 15. In a mandrel on which a hollow fabric band is constructed, the combination with a hollow flattened body portion open at the outer end, of fabric expanding means arranged thereon at intervals, said expanding means comprising extensions arranged in oppositely placed pairs, the pairs of extensions arranged at diflerent angles, and provided with .inclined extremities, the extremities of one pair of extensions overlapping the extremities of an adjacent pair.

16. In an automatically acting machine for the manufacture of a flattened tubular band composed of flexible fabric elements, the combination with a stationary. tubular mandrel having a flattened extremity, of means for winding said fabric elements on said mandrel, one series thereof in one direction and another series in an opposite direction, means for pulling said tubular fab-' ric from said mandrel and for flattening the same, means for injecting liquid rubber through said tubular mandrel into said, tubular fabric, means for coating said flattened band on the outer side with liquid rubber, and means for dryingand stretching the band.

17. In c0mbinati0n,'in an automatically operating machine for the manufacture of a flattened tubular band composed of laminated cohesive interwound flexible fabric elements, aseries of concentric reels and spools spaced thereon, a frame on which said reels arerotatably mounted, a central I tubular mandrel, or forming tube, said manice

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