US1026648A

US1026648A - Tubular-fabric-forming device.

Info

Publication number: US1026648A
Application number: US46762108A
Authority: US
Inventors: Eugene D C Bayne; Lawrence A Subers
Original assignee: Individual
Current assignee: Individual
Priority date: 1908-12-15
Filing date: 1908-12-15
Publication date: 1912-05-21
Anticipated expiration: 1929-05-21

Description

E. 1). 0. BAYN'E & L. AT SUBBRS. I

TUBULAR PABRIG FORMING DEVICE.

A1 PLIGATION FILED BBQ. 15, 1908. Patented May 21, 1912.

4 SHEETS-SHEET l.

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E. n. 0. BAYNE & L. AIS JBERS. TUBULAR FABRIQ FORMING DEVICE. APPLIOATION P 'ILED DEO.15, 1908. I I 1,026,648. v Patented May 21, 1912.

. 4 SHBETS-SHEET 2.

B. 'D. G. BAYNE &: L. A.'- SUBERS. TUBULAR FABRIC FORMING DEVICE.

APPLICATION FILED DEC. 15, 1908.

Patented May 21; 1912.

4 SHEETS-SHEET 3.

nevus rum x4. m mammal. o c.

UNITED STATES PATENT oEEIoE.

EUGENE n. c. BAYNE Ann-LAwnENcE A. sUBEIjz-s, or CLEVELAND, OHIO.

TUBULAR-FABRIC-FORMING DEVICE.

Specification of Letters Patent.

Patented May 21, 1912 Application filed December 15, 1908. Serial No. 467,621.

To all whmmt may concern: 4

. Be it known that we, EUGENE D. C.

BaYNE and ,LAwEENcE A. SUEERs,v citizens of the UniteidStates, and residents of Cleve- 5 land, int-he county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Tubular Fabric- Forniing Devices,;of which we hereby. declare fthe'follow'ing to be a full, clear, and

lo exactdescription, such as will enable others skilled in the art to which it appertains to make and use the same.

Theobjects of the invention are to provide an improved machine and process for automatically producing a tubular. fabric composedof alternating layers of longitudinally and spirally or transversely applied cords or threads, such as are described in our previous application for Letters Patent of the UnitedlStates, Serial Nos. 411,960 and"441,988, and in ourpreviously granted Letters Patentof the United States, bearing date of July 2l ,No. 894,172, and of April 21, 1908, No. 885,219. In these applications and Letters: Patent the cords or threads are made'flexible and caused to adhere together by coating each strand or longitudinal memberthereof with vulcanizable non-fibrous material before twisting them together to form the finished cord or thread, and the .ijabric to be formed by the improved.ma-. chine or process comprises unwoven layers Iofparallel rows of similar cords or threads laid tinder pressure and adhering together and afterwardvulcanized to form a homogeneons", fabric. This machine and process aresdesigned to provide a more efiicient and practical. means and method for applying the-sad; longitudinally, transversely or spirallyf laid layers of threads than the means and-process previously described in out Lettersl Batent No. 897,339, filed September 1st,

19Q8,- and;-is alsozdesigned to produce an improved fabric-r a v u r -objectsxarje 1 to simplifyand imh structureaofithcjmachine andtlre hi the machines-1711 I ter '0 e= mechanism andprocess employed (Se-sister previouslymentioned device may be stated, as follows :Improved construc- Jieretofore :eriipliiyed? for this, p urpose 'andjthc means for exteriorly coating; ords r threadsl-ands to lay them under; -a d! presureintaefluldcement and e ttlafit. and Y rec-ision in the ac-: a

a y 7 p head showing tlie'cams' which 'lift the holdihus' iinprovement-s in the-charac ing fing rs;

tion of the traveling head-whichcarries the director-wheels and its adaptability for use in applying the spiral, longitudinal or transverse coatings or layers ofparallel rows of threads. Improvements in the construction of the holding fingers which secure the 3 thread while the reverse movement of the director wheels takes placeand for formmg the loop in the thread at the extreme limits of the pre-determined length-of tabric it is desired to produce. In means for alternately connecting thet-raveling head with the worm shaft for quick longitudinal movement when applying the longitudinal layer, and with the screw threaded feed shaft when applying thespiral or transverse layer. In improved and simplified "means for operating the ratchet wheel which turns the shaft of the mandrelupon which the longitudinal layer'is laid, according to the diameter of the-cord or thread and the number of rows that can be accommodated on the mandrel. In improved shifting and locking mechanism for the mandrel shaft. In mechanism and process for applying to each row of thread. after laying, a solution of fluid vulcanizable cement, designed to provide the required coating necessary for that and the following thread, so as to separate the several threads an'dto cause them to adhere together practically out of fcontact with each other, and also to provide 'a matrix for each cord or threao'suflicient when vulcanized to produce a homogenous and flexible fabric.

The invention further comprises, the; com-' I bination and arrangement of parts-and the successive steps of the process, as hereinafter described, exemplified in the accompanying drawings, and specificallypointed out in the claims. 4

In the accompanying drawings, Figure].

is a. plan View of the improved" device, by

means of which the fabric, is'formed-j Fig.

Qisa side elevation of the same'fF-ig? 3 transverse section; Fig-dis a transverse sec- ,tion through this head showingdivldedfnut .Fig-

a transverse section tl1rough=th1s-*-' perspective views of the cam extremities of all said holding fingers;-

is 1a, side elevation the traveling jhe ad" lf inl g the d re hs i wmet lvarious, fsli afts passing tlierethrough in Fig. 9 is aside elevation of formingmandrel loop; Fig. 11 isa transverse section ofthe forming mandrel showing the main and auxiliary holding fingers and a director Wheel passing directly over it; Fig. I1 isa detail of auxiliary holding finger and arm;-

Fig. 12 is a 'plan'view of the same parts in the position shown in Fig. 10; Fig. 13 is a perspective view, showing the looped cord orthre'ad and one of theend holdin'g'fingers in position, after a loop has been formed at the outer end of the fabric,and also a portion of one of the intermediate hol'dirg fingers; Fig. 14 is a transverse section of one of the intermediate fingers showing the spring action thereof; Fig. 15 is a transshifting rod.

were employed, one for the dlrector wheelsverse section of the forming mandrel, showing the director wheels in position for ap plying thevspiral or transverse winding; Fig. 16 is a vertical central section of the rubber holding. cylinder, shown in the elevation of Fig. 2'; Fig. 17 is a transverse section on line L, L, Fig. 2 showing the toggle mechanism' for operating the ratchets on the mandrel shaft; Fig. 18 is an enlarged transverse section on the same line showing the pawl actuating mechanism 'Fig.' 19 is a longitudinal section of the same; Fig. 20 isa longitudinal section of the shifting and locking devices for the clutch for the mandrel shaft; Fi 21 is a detail elevation of the shifting fork which is embedded in grooves in the worm shaft; Fig. 22 is a transverse section of shaft and fork; Fig. 23 is an enlarged section of one of the lockin'g disks; Fig, 24 is an elevation of the tension device employed for the cord or thread.

In these views, the bed plate, the driving mechanism, operating gearing, I mandrel shaft clutch, and worm and fine screw feed shafts are unchanged, also the mandrel and mandrel shaft from the machine described in ou'r previous Letters Patent Number In these'views, 1 is the bed plate, 2 the worm shaft for giving the longitudinal movement of the traveling head when ap-' plying the longitudinal threads to the mandrel M, 3 is, the supporting and guidingshaft for the" head, I the screw feed shaft therefor, 5 the traveling head-and. 6 th s In our former device two traveling hea' ds adapted to apply the spiral or transverse layer of threads, and one for the wheels applying the longitudinal layer of threads. In this device only one travellng head 5"1s employed, and through it both actuating shafts;

' 2 aIlCllpass.

A screw threaded pin 7 passing'through thehead 5 can bemade to engage the slot 8 in the worm shaft 2 when, desired as shown in Fig. 3 or can be withdrawn therefrom at leasure to release the traveling head thererom.

A semi nut 9 horizontally movable in guides 10, 10 upon the head 5 can hemade to gs' engage the screw' threaded shaft 14 when-i spiral winding is desired. Thisnu't can thrown into and out of contact with the fried screw by means of the pin 11 provided witlikf the oppositely placed cams 12, 12, which aletaov adapted to-engage'with the arm 1380f sliding nut 9.on one side and the block 14' on the other side,-and by means'of-a handle" 3 15 the pin canbe turned to throw the Initiaout and into. engagement with the sc ew' g;

threaded shaft. When the parts are in engagement t-ll6 spring 16 will throw the pin inward andthe cams will partially-enter an openingl? in the solid head and thus lock the nut in place, I It must then" be pulled out by hand when again shifted in position. Y L) .The pair of

director wheels

18, 18, are? supported for vertical and horizontalad-= justmen-t upon azplate 19, secured u on a horizontal shaft 20, which islon 'tu'dinally adjustable in a clamping sleeve whichin turn is mounted upon a shaft-22 vertically adjustable in the traveling head'5.'. f

Guide wheels 23 and 24 carry'thecordforioo thread to the director wheels as showrnfin" whatever position they maybe 'placed, and are adjustably mounted "upon the{ 'a-rn1' 25j attached to the horizontal shaft '20.: I

The standard 22 is providedwith an'ade justment-by means of a rack R and 5a inion R for fine variation in its position; scale WV is attached to the standard, and a similar scale V is engraved on the horizontal1tod'f20" for adjustment relative to-varying sizes'of 1'10. mandrel. This horizontal shaft can be rotated to bring the director wheels, also into a vertical position as shownin Fig. 1 5 by, means of a handle 26, and the shaft is locked 5': in either position by means ofthe'groov'es 27, 27 in' thelclamping sleevej21 and projecting lugs 28,. 28 upon a collar 29 [secured upon't-he horizontal sha-ftQO. These grooves areseparated by arcs of 90. so, as. to'

receive the lugs in both horizontal andver 12f);

l 'p a. A Spring SeXertsacQ stQm P ssure, of the' ii'eotor wheelsupo the. Work.

The cord orthreadT isireceived the grooveddirector wheels 1B,:18-,"and 1s prevented from falling 'or being drawn out! of their grooves by means ofismallqrollers 30, 30, p'ivotedone oireach side of the wheels .and overlapping their meeting edges. INear-f the limits of the movement of thedirectorigrlfi their wheels are placed the holding fingers 31', 31-.

These are designed to secure the endsiof one :row while the following row is being laid.

* of the mandrel. JThe fingers holding the cord or thread are preferably just below the.

- signed to retain the cord or thread T in l ies 'A fine projecting point B upon the finger laid and over this the loop P is made as the wheels return. The extreme upper edge of the finger is beveled away at 33 to guide the condor thread as the wheels return, and the wheels run preferably upon the center line additional holding fingers deplace while the

fingers

31, 31 are lifted above it. These fingers are pivoted'on the same shaft 32 and pressed into engagement with the mandrel by means of springs, 81, 81. They are thrown back just previous to the releasing'of the fingers 31 by means of downward projections 82, which have cam shaped extremities 83. These extremities are first engaged by the cams,40, 40 on the traveling head, and when thrownback thereby, a pivoted-arm 84 on each finger is slightly raised by the spring-87, subject to'the limit of the slot 85, and pin 86, so that when thearm returns, the engaging extremity of the arm will rise and engage the row of thread just downward after itis laid and this tendency v 5 is overcome by means" of thejoint'ed' ex laid, as shown in dotted lines in Fig. 11 and v as themandrel revolves the arm will be depressed by it and will come down to the level of the

other fingers

31, 31, just below the center line of the mandrel and hold the cord or thread firmly until the

fingers

31, 31, are engaging again. The necessity for this'device over the former machine is found in the fluidity of the rubber cement which has not had time to hardemwhile the coated cords mentionedv in the former machine were adhesive enough to hold the cord or thread in place, against the .tension underwh ch they were placed.

3 =34laare the inter n edia-te fingers which hold each-row-in place while the next- 'is,he'-

ing applied. These fingers with theholding fin gersl 31,531 are; nrountejd upon a common rock shaft- 32 and operate in unison;

w-Sincfithe pivotalpoint ofthe shaft is not rertically under; the mandrel Qtlfe fingers have a tendency to push each row sllghtly ust over the cord or thread previously caused to flow under pressure-from:affine tube upon the tremity of each intermediate finger 3 1 pivoted at 36 and a spring 37 slightly separates I the upper edge of this joint when free so that when depressed the extremity will have a-slight, upward movement and press the row holding it in place; The action of the cams 40, A0 to draw back first the

fingers

80, 80, and then the fingers 31', is as follows: The traveling head 5 strikes the stops 38 upon the shifting rod, and operates, the clutch arm 39 as in the said former machine, to reverse the movements oftheworm shaft, and before the end of the stroke is reached, the depending arms, 82, 82, are first engaged by cams 40,40, to lift the

fingers

80, 80, and then the depending'arms 39', 39', fixed upon the rock shaft32 at each limit of the desired I stroke engage with the cams 40, 40, upon the traveling head and throw back the holding

fingers

31, 31, while the mandrel rotates through a. distance equal tothe position for laying the next row of cord or thread. These cams have oppositely inclined faces which engage

inclined faces

83, 83, and 42, 42, upon the lower extremities of the depending arms, so as to throw them inwardly when passing in one direction, but the cams are adapted to be depressed by the said arms on the re turn stroke by inclined faces k -3, 43. Springs 44:, 44:, return them to place when depressed, The extremities, 83 and 42 are alike and.

hence a .view of one setas in I i "7 and 8 will sufiice. 1 I i While arow is being applied, frubher is upper side of'therow of cord or thread, just laid, and"tof fill the anglebet-ween the row justlaid and the rubber. layer 46 upon whichfirst layer-"is laid. Thus forming amatrix inwhich to lay-the next row. After thefirst layer isj laid the "fluid rubbercement is laid'uponthat mad I 'vance of its director wheels"; This fiow'of rubber is obtained by means of pressure upon a reservoir 47, of rubber, elevated above the mandrel, and provided with the; supply tube 45 througlrwhich the rubber and also preferably with two control,- 1 ling valves. The valve'57' is closed when cleaninglthe reservoir and-thei valve 56 is used to control thesupply to the fabric. 7

The pressure should be adjustable and, may be obtained in any co'nvenientniaimer, and regulated according to the requiredrateof fio'w" and density of the rubber. solution.

the 'fl'uidout of the tube and alever 51- and,

weight 52 adjustable thereoni regulate the? re sure? upon by raising the piston and'can be drivenoutifb lowering the Ipist0n,- a screw cap-:55 s' As showhi'a Pi lg adapted toilfm'ce The p1ston rod153' is hollow and provided 5 with an external opening 154 through which the rubber can be' suck'ed into the greceptacle used to close the opening 1. The edges of the piston are shown sharp at 56 to prevent rubber from coating the sides of the cylinder.

' It has been ascertained that by this means .a more satisfactorycoating is provided for 1 The nozzle 58-by means of which the rubher is directly applied is preferably secured to the support for the director wheels, so as to travel with them and is shown centrally placed, betweenthem, so as to deposit the .rubber in advance of the laying off; the thread. alternately by each roller. Thefsize and shape of the opening in the nozzle 58 can also be. varied to suit the volume of rubber required hence the nozzle is shown detachable at 60 and any number of. shapes can be employed and attached in turn as needed. 7

It is obvious that the forming mandrel can be made of any length and any number of tubes of equal length can be made simultaneouslythereonby duplicating the mechanism described for forming one tube at regular intervals, along the forming mandrel, one section serving as an example.

In Figs. 18, 19 and 20 improved mechanism is shown for operating the ratchets.

61, 61, by means of which the forming man'- drel shaft is turned through the diameter of one thread to make room for successive rows one after the other. In these views 62 he shifting sleeve upon the worm shaft.

operatively connected with a fork 63 slid ingly movable in grooves 64 in said shaft,-

by means of rollers 65, 65 upon said fork. This fork is thrown by means of the shifting armattached to shifting rod 69 which moves when the head 5 strikes the springs, at each end of its travel, to reverse the movement ofthe worm shaft as employed in the former machine Letters Patent Number 897,339.

A curved yoke 29 is pivoted at each end in the arms 66, which engage the circumferentially slotted sleeve 62 oneach side and the yoke is centrally pivoted at 70 to a vertically movable pin. 71. which slides in support 68 at 75.

a tubular bearing 72 in the support 68. The upper extremity of this pin is enlarged at 73 and upon it rests one end of a link 74, the other end of which is pivoted upon the A pawl 76 pivoted to this link is-raised as the toggle link 69 raises the pin 71 and the movement of the pawl is justsuflicient to turn the ratchet wheel one tooth at a time according to the diam eter of the cordv or thread which is being The locking device in the shifting mecha-- nism for the worm shaft is also different from that shown in the said former application and is much simplified and is shown clearly in Figs. 20, 21 and 22. Here 63 is the shifting fork slidingly movable in grooves 64 in the shaft 7 100 is the main shifting spool, 101 the rock arm which operates the main shifting clutch 102 as described in said former application, which throws-gears C and C alternately into operative connection withthe mandrel shaft by means of internal rock arms C -and 0 adapted to engage internal teeth C in said gears. This has been previously described and has not been changed since said former application was filed. On

each side of the main shifting spool 100 are shown the disks 103, 103 which are fixed upon the worm shaft and .the fork passes through them. Upon the rim of the main shifting pool100 are secured spring catches 104, 101 which are adapted to alternately catch upon the edges of the-disks 103, 103, and hold the rock arm securely from movement until the return stroke. Upon the

return stroke pawls

85, 85, pivoted in the disks S3, 83 are engaged by shoulders 86, 86in the fork arms and their outer ends raise and release the spring catches 10 1, 104 so thatthe return movement can be made. Small springs, 87, 87 return the

pawls

85, 85 and the. spirah springs 88, 88 return the parts when thespring catches are released.

The mandrel shaft M is prevented from rotating by means of a cam lever 90, pivoted at 92 inthe support 68., This lever is held normally into engagement with the shaft M- The longitudinal rows are looped back upon each other by-the reversal of movement 0f the traveling head and the loops determine the lengthof the fabric and form a firm.

selvage edge therefor. As soon as one layer is laid in a longitudinal direction the director wheels are placed in a. vertical position, the traveling head is connected with the fine screw threaded shaft, and a spiral winding is commenced. L

The direction of thespiral winding can be changed at pleasure by reversing'the movements of the mandrel. This reversing movement is provided for by means of the hen the pin rises the lever releases fixed beltp'ulley 'ose; p-iilleysJD and E upon one 'o fjythichja crojssed belt can be,

placed.

One spiral layer upon tlf mandrel can be ,r. ,v 5 wound in one direct on and the next in;-

.nating.:longitudinally laid and spirally or.

transversely wound-layers, and al arev continuously,formedigfrom one cord or thread. Oneof the anost important advantages of the fluid rub "enreservoir and the applicator tube for laying the cement upon the fabric, instead of: the former method of coating each cord or threadprior to laying itin the 'fabric, isfound in thefactthat the cord or thread is dry non-adhesive, so ithat it can be stored h ownin the spool'X, and

- need not be ght from the coating and fabric makingmniachine. It is also much easier to hanqie-nrevery way, and a heavier coating can be applied by this means,.'filling all the-"interstices between the cords or threads and producing a perfect matrix therefor;

It is obvious" that by duplicating the director wheels,'more than one cord or thread can be laid at one time, and by. lengthening the mandrel and duplicating the traveling head'and accessory" parts and holding fingers I and operating mechanism therefor, an additional section or sections of fabric can be simultaneously-formed withoutdeparting froni the spirit-of the invention.

ln carrylng out-this process it is essential that the cord orfthread should be placed under; tension and the cords or threads in the completed fabricsliall be under uniform tension in all directions. -Hence, an adjustabletension device1is employed preferably asShbwn eiEFigLQel: where the cord or thread T is 'showngpassing from a vertical spool X through the adjustable differential tension device Y, shown and described in an accompanying application, Serial No. 467,620 and employed in the coating and twistingfmachine 'therein described and hence not specifically described herein.

,Having. described the invention what we claim as new and desire to secure by Letters l j f machine" for laying cords or apairi f-gr r s: i

adapted}-..t ,ake li e nate y a horizontal position ther for operatively connecting said traveling twisting or winder-1g machine directly to the cling head, a nozzle for said fluid, adapted l' alternately in .s'p1--' were;

1 "'i 'saidtravelieap-av; p j I ,drelfmearisjforintermittently gand lperior t, i saidfmandrelfa lock g deviceiada'pt'ed to.

head, "alternately with 'jsui reversing? the movemen' of at predetermined in ratchet wheel devic rotating "said inandrel, the diameter 8 one cord or thread, while the travelingheadisconnected with' the worm shaft, at the end of the travel of the head in eaelidirect'ion. and means for applyin a coatingl f rubber to the mandrel and last laid cord ordhread in advance of the director wheels.

2. In a machine for laying a succession of rows of cords or threads upon a mandrel, mnombination with said mandrel, a support for said-. nandrel, a traveling head adapted to move longitudinally of said mandrel, director wheels for said cord or thread, adustably secured in said head, a reservoir for fluid coatingmaterialadjacent to said travfts, means for -.worm shaft a pawl and;

. a r to travel \v1th. said traveling head,,sa1d nozzle communicating with said reservoir, said nozzle adapted to travel in HClVa Q f said director wheels and to apply 'said coating fluid to the surface-upon which said cord or thread is about to be laid and to the row of cord or thread last laid, and mechanism for moving said traveling head.

/ 3. In a machine for laying a cord or thread in parallel rows upon a mandrel, the. combination with the mandrel, 6f a support therefor, a traveling head adapted to move longitudinally of the mandrel, a pair 'of director wheels adjustably secured in said head, over one of which said cord orthread is adapted to pass to said mandrel, means for giving a positive'parallel'movement to said traveling head relatively to said mandrel, a reservoir for tenacious vulcanizablq fluid-adjacent to said mandrel, a nozzlesecured closely adjacent to said director wheels, and niovable therewith and communicating with said reservoir, and adapted to apply said fluid to the surface upon which the said cord or thread is to be laid and upon the adjacent row of cord or thread, in advance of the laying director wheel.

4. In a machine for. laying parallel rows of cords or threads longitudinally upon a mandrel, in combination with the mandrel, a supporting bed for the mandrel, .a worm shaft mounted in said bed, parallel with. said mandrel, means for rotating said;worm shaft, a head adaptedto travel onfi. said f cally "rotating-said mandrel,":and :n1eans gl oi p ls reversing thee-movements 0f 'the said .sjha ft f-- sfai' reversing means controllable by the; movement of said travelinghead, means for.

securing -the mandrel1from: rotation alters nating' with said rotating means therefor, .130

, mechanism for securing-the rov. of cord or thread last laid from movement while the being controlled by the movements of said.

traveling head and instrumentalities for applying a coating of non-fibrous and vulvulcanizable fluid, adjacent to said mandrel,-

canlzable material to the receiving surface in advance of the cord or thread' being laid.

5. In a machine for applying longitudinal rows of cords or threads upon a man- 'drel, the combination with the mandrel, of

a traveling head, adapted to move longitudinally of said mandrel, a pair of director Wheels, adjustably and horizontally secured in said traveling head, over which alternately said cord or thread is adapted to pass to said mandrel, mechanism the move 'ments of which arecontrolled by' said traveling head, forgiving a reciprocating longitudinal movement of said traveling head parallel to said mandrel, a pawl and ratchet device for periodically rotating said mandrel, the diameter, of one'cord or thread spring pressed holding fingers adapted to secure the last laid row of cord or thread while the next is being laid, one finger located at each end of the row, acommon pivot shaft for both said'fingers, a needle point on each finger over which the cord or thread is adapted to be folded on the return movement of the director wheels, intermediate holding fingers on said pivot shaft and mechanism controlled by the movement of the traveling head for withdrawing said holding fingers at the time that the mandrel is being rotated by said ratchet device and releasing the same before the said cord or thread is doubled.

6. The combination with a mandrel and worm andscrew threaded shafts of a traveling. head, a pair of director wheels, a support therefor adjustably secured in said head for horizontal and vertical position of said director wheels-a nut portion in said head, movable into and out ofenga ement with said screw threaded shaft, a pin 1n said head adapted to detachably engage with said worm shaft, a support for said shafts andmandrel. I f

7. In a machine forapplying parallel rows of cords or threads to a mandrel to' form an unwoven fabric, the combinat on with the mandreland cord or thread laying devices, of a receptacle for non-fibrous an a pipe leading therefrom, a traveling nozzle adapted to move in advance of said cord or thread laying devices and to apply said 'fluid to said mandrel and rows of cords or thread thereon, a'tube connecting said nozzl with said receptacle, and an adjustable pressure device in said receptacle.

. 8-. The combination with a rotatable worm shaft, and a mandrel shaft, a traveling head,

a shifting rod, adapted to be engaged by said traveling head at eachend ofits stroke,

a shifting arm upon the rod, the worm shaft driving and reversing gearing for said worm shaft, controlled by said shifting arm and a locking device for said shlfting device, said locking device comprising a sleeve movable on said worm shaft with said shifting arm,

a disk fixedon said shaft, one on each' side of said sleeve, a spring pawl fixed on each side of said sleeve, said pawls adapted to alter-'- 9. The combination with a rotatablelh orm shaft and a reversing-"arm'tlierefor,;,@of a fork movable 1n said shaft and operat vely connected w1th sald revers ng arm, a sleeve upon the shaft adapted tg'iljnove with" said fork, a disk fixed on said shaft onjach side of said sleeve, a springepawl'projecting from each side of said sleeve, and pawls pivoted in said disks and adapted to engage with said fork at each end of its stroke and release said spring pawls, prior to the return movement of said fork, substantially as described. f

10. The combination with a mandrel,.'and

a rotatable worm shaft, of a traveling head,

operatively connected with the worm shaft, means for rotating said shaft, a

reversing device for said shaft andan operating rod therefor controllable by' the movements of said traveling head, a ratchet device adapted to periodically rotate said mandrel and mechanism for operating said ratchet device at the time of reversing the direction of'movement of said worm shaft,

,and for locking said mandrelfrom move-' ment as soon as it has been rotated by said ratchet device. v

11. The combination'with a mandrel and mandrel shaft, a traveling head and a worm shaft, of a reversing device therefor, con

trolled by said traveling head, a shifting arm therefor, a sliding forkin said worm movable sleeve on said fork, a support on said mandrel shaft, swinging arms pivoted shaft controlled by said shifting arm, a

in said support andsleeve at their ends, a

.toggle link pivoted in saidarms, a vertically moving pin in said support, pivoted to said toggle link, a ratchet'wheel on said mandrel shaft, a link pivoted atone end on said support and having its other end resting on said pin, a pawl pivoted to said link and adapted to engage said ratchet wheel, a return spring for said pin, and a return'spring for said link, and a lever pivoted in said support,

said lever. having one end engaging said pin and the other adapted to'engage and secure said mandrel shaft from movement when said pin is depressed.

12. In a device for laying cord orthread under tension upon a mandrel, the combination with a rotatable mandrel adapted to move periodically at definite intervals, of director wheels adapted to apply a row of said cord or thread longitudinally thereto, and reciprocable upon said mandrel, and a traveling head upon which saidwheels are mounted, holding fingers arranged at each end of the travel of the said director wheels and adapted to engage the row of cord or thread last laid, while a new row is laid upon the mandrel, means for raising said fingers when the mandrel rotates, said raising means operated by said mandrel and auxiliary fingers adapted to retain their en gagement, while said mandrel rotates, and

to prevent said cord or thread from being detached from its location on said mandrel.

13. In a device for retaining a cord or thread under tension on a rotatable mandrel, in combination with said mandrel, a holding finger provided with a depending cam shaped arm, a hinged arm, upon said finger, adapted to engage said cord or thread and 'retain it in place upon said mandrel while said mandrel rotates, a return spring therefor, and means for limiting the movement of said arm.

In testimony whereof, we hereunto set our hands this 9th day of December 1-908.

EUGENE D. C. BAYNE. LAJVRENCE A. SUBERS. In presence of A. K. '1. OSBORNE, ED. 0. PEET.