US1997498A

US1997498A - Warp printing machine

Info

Publication number: US1997498A
Authority: US
Publication date: 1935-04-09
Anticipated expiration: 1952-04-09

Description

April 9, 1935. T. H. RUSH WARP PRINTING MACHINE Filed April 18, 1933 10 Sheets-Sheet 1 April 9, 1935. RUSH 1,997,498

WARP PRINTING MACHINE Fil ed April 18, 1935 10 Sheets-Sheet 2 April 9, 1935.

T, H. RUSH WARP PRINTING MACHINE Filed April 18, 1933 10 Sheets-Sheet 3 April 9, 1935. 'T. H. RUSH I WARP PRINTING MACHINE 1o Sheets-Sheet 4 Filed April 18, 1933 April 9,1935. T H 1,997,498

WARP PRINTING MACHINE Filed April 18, 1935 10 Sheets-Sheet 5 April 9,1935. T. H. RUSH WARP PRINTING MACHINE Filed April 18, 1953 10 Sheets-Sheet e T. H. RUSH WARP PRINTING MACHINE Filed April 18, 1953 10 Sheets-Sheet 7 April 9, 1935. T. H. RUSH WARP PRINTING MACHINE Filed April 18, 1933 10 Sheets-Sheet 8 A ril 9, 1935. v H, H 1,997,498

WARP PRINTING MACHINE Filed April 18, 1955 10 Sheets-Sheet 9 April 9, 1935. T. H. RUSH WARP PRINTING MACHINE Filed April 18, 1933 10 Sheets-Sheet 10 errie 2 3 .t 1. t 1 7 93 UNITED STATES PATE'NTIOFFICIE I I Theodore H. Rush, Bloomshurg ,IPa., assignor to TheMagee Carpet Company, Bloomsburg, Pa, a corporation of Pennsylvania Application April is, 1933, Serial mlsca'zsa 13 Claims. (01.91-42.01

This invention'relates to warp printing m Another object of the invention is to lay the chines of the type commonly used in the printing continuous warp thread on the face of the tap of pile warps for tapestry carpets and similar drum in a manner to provide, in the one length textile products. i ofcthread aplurality of rug'lengths, saidthread '5 Machines of the type noted usually employ a to be wound on a single beam in predetermined 5- drum of relatively large diameter, commonly re laterallrelation to other threads of a similar charferred to in the trade as tapdrum. The warps 'actert but different color distribution as required to be printed are wound in continuous spiral form" for each transversely extending course of pile on the peripheral surface of the tap drum; in tufts in the series of rugs. x

' substantially lateral abutting relation to each Another object o t e invention is to provide 10 other to form a single layer on' the face o'fthe means by which a plurality-of threads willbe drum,rfor receiving coloring matter from an aplaid simultaneously on ,theface of the tap drum plicator consisting of a roll or wheel rotatably inlateral-spaced relation tokeach other, first in. mounted in a carriage operable transversely of one direction circumferentially of the drum from 15 the drum d P ov ded with a color pan arranged onejline' or anchorage to a second line or anchor- 5 l to supply the coloring matter to the printing eleage,flth roug h' an arc, of approximately 350 and, ment. then in an opposite direction through said are The color carriage and applicator are adapted, around theperiphery'of, the drum to the first said to be moved across the face of the tap drum while anchorage whereby each thread, so laid will be the same is at rest, between intermittentrotadoubled and:;redoubl ed upon itself and thereby 0 tions of the drum by which various portions; receive and contain the various color units for lengthwise of the warps, are brought into printb'oth halves of reach of a plurality of rugs. ing position in line with the path of transverse, .1'Another Obj t n invention is to Provide 'n'iovement of the carriage; i escapement means by which the thread-laying T C ence of the tap drum heretofore elementswill'be moved stepby' step laterally of 25 has been substantially equal to a length of a pile thet' fac'e of the ,j p each, e the warp necessaryto produce pileltufts in a single rotation of the drum is reversed in laying the warpwise line throughout substantially one-half threads back and forth around the periphery of V of the length of alarge size rug, for example, a the drum," whereby the singlelayer'lateral abut- 1 9 x 12 rug, which necessitated the printing' of anting relation of the thread sections is obtained on. 30 y other warp thread of equal length inreverse order the face of the dr m 1 y 7 I to the first'said length, to provide for the pile ,Other objectsof the inventionand-the contufts in the second half of the rug, in cases where struction and, operation of the mechanism formthe pattern at each end of therug are exact duing the subject matter of the present application plicates. V r t will be fullydisclosed-hereinaiter, reference being $11011 double printing tated the use Of had to, the accompanying drawings; of which: tw Wa n ams in th l m an the u st tution Figs. 1a and lb constitute a front elevation of of the threads from one beam for those of the, ta d and'a'ssociatedpmechanism made in other beam when e first l 0f the e accordance withthe principles of the present i v 40 1 been completed in theloom. t t n; 1

Prior t0 this invention t has beenipracticany 'Fig; 2 'is: atransverse sectionalelevation of the impossible to print a single continuous warp drum as takenon line 2+4 4 Ehread g g g g i f g Fig 3 is anenlarged front elevation of the inuous ea p'e u s or ewoeofone c5 1 warpwise extending course thereof, as such, under 33 2 z i g gg i the printing method of the prior art, would necesan 8 1on0 amsm sitate theuse of such a largedrum that it could w t I i 1 r r not be economically manufactured and handled Fig, 5 1s a transverse sectional elevation taken The principal object of the present invention onthehfie 3; V

5o is to utilize a drum of the normal practical size F 61$ transverse Sectional elevati 11 a e and to arrange acontinuous warp thread in such e e a manner on th eriphery "ofthe-normally sized Fig.7 is a fragmentary sectional elevation taken" drum as to provide for a" complete single course on the line 1 'l, 1 ig. 3; of pile tufts from end toendof arug, or other Fig.8 is alperspective view of one of the threadfabric unit, of the larger sizeas above noted; laying units; i

Fig. 9 is a sectional elevation taken on the line 9-9, Fig. 7

Fig. 10 is a sectional elevation taken on the line '7 iii-40, Fig. 7;

in position on the tap drum;

Fig, 14 is a sectional plan view takerron the] line Ml4, Fig. 2, and illustrates the'means by which the tap drum actuating notor is reversed;

Fig. 15 is a perspective view of one of the ad-' justable reversing cams shown in Fig. 2;

Fig. 16 is a sectional plan View taken ontheline idem, Fig. 5; 2o

Fig. 17 is a plan view of a portion of the escapementmechanism shown inFig. 3;

Fig; 18 is a diagrammatic face view of a rug or fabric unit of relatively large size;

-Fig; '19 is a diagrammatic sectional view'taken on the line 19-49,- Fig. 18;. r

Fig; 20 illustrates one continuous pile thread for making a single courseof piletufts longitudinally of thefabric unit such" as on the line !9--i9;Fig.18;-

.'- M ,m f

Fig. 21 shows the thread of Fig. 20dou'bled upon itself for. simultaneous'printing of the duplicate color units of'theopposite halves of the pile tuftcourse represented-by the thread shown'in Fig.'20;.and

Fig". 22 shows a single Warp thread doubled and redoubled to produce a'plurality of rug lengths in a single'thread. v

As shown in Figs. 1a} 172 and 2, the printing 'machine comprises a generalframework indi- Interposed between the

staves

6, 6 in spaced relation to each other,oircumferentially of the tap drum), is a pair of-

anchor plates

8, 8

respectively, by which" the" opposite ;ends of the cover sheet '1 are secured in place and by which the said coversheet is held tautstate 'in snug fitting relationto theface of the drum as provided bythe outersurfaceof the segmental Each of the anchor plates 8 is provided with a cavity, 91 in which-the. end of the sheet reposes and from which the said sheet extends'betw'een a clamp. plate H secured to the anchorplate 81 and a pinch bar 13 .which, .as illustrated in Fig. 13, taper'sleng'thwise' progressively from end to end i thereof and which is adapted to be driven into areceiving slot ldiormedzin the anchor plate 8. The recess I4 is provided at one :side with an undercut edge l5 adapted to receive a beveled edge 56 of the taperedpinch bar #3. Longitudinalmovement of the pinch bar I3 in one, direction will effect lateral movement thereof toward the fixed bar I l,, -thereby clamping theendof the cover sheet I firmly therebetween.

Each of the fixed bars l l-v isproyided: with a series of laterally spaced

pins

20, 20 about which the individual warp threads areadapted to be laid during oscillatory movements of the tap drum Ill.

The laterally spaced

pins

28, 20 on the bars ii, I 1 respectively are divided into a plurality of groups a, a and b, b transversely of the drum l0. 7

' adapted to receive, and, for the purposes of adjustment, to slide on and longitudinally of a.

carrier bar39. Each'bracket 26 is adapted to be locked in adjusted position on the carrier bar 3 3 by a bolt 29 passing through a short slot formed in the bar and tapped into. the .base 21 of the bracket 26. Projecting verticallyat each of'thej opposite ends of thejbase 21- is an upright 3| in which isslidably mounteda rectangular stem 32.

Secured to-thestern 32 intermediate the up:

rights tl, 3l is a collar 35betweenoneside of which and the inner face of oneof the uprights ing to movethegsaid stem longitudinallyin a direction toward the face or the tap drum ID at all times.

Secured to the end of thestemBi! intermediate, the bracket 26 andthe periphery of. the tap drum iilfis a thin plate-like head 40 which is provided with an eye 39 for the passage of the threadx, andwith alat'erally extending lip 38 for-purposes hereinafter described. 1 I

The tap drum 10 is adapted to oscillate about ,3! and encircling the sterntgis a spring 35 tend the axis of the shaft 3, first in one direction and then in an opposite direction through an arc of substantially 350 between which the thread-' laying units 25 are adapted to; be shifted lat-eral-- 1y, or transversely of the drum IE, a distance equal to the spacing of the pins-29 thereon, whereby each of thesaid thread-laying units will carry the thread a: respectively carried thereby'around oneof the pins 23, which, upon reverse movement of the drum ill, will catch-the threadand hold 'it imposition While another section'or" the thread is laid on the periphery of the drum in.substantially parallel lateral abutting relation to the section previously. laid thereon.

, During each thread-laying operation the lip 38 rides under the last said section of the thread as illustrated in Fig. 7 and tends to straighten the thread section on and circumferentially of the drum, in orderv thatthe new thread will be la id. in snug-abutting relation to the previously laid thread and substantially. parallel thereto, without overlapping.

Lateral shifting of the thread laying. units 2 5 is accomplishedby-the mechanism shown in Figs.

1b, 3, 4, 5; and 7. The bar 36 to which all the thread-laying units 2-5 are rigidly secured-is provided with a ra ck 'bar 511' which is rigidlysecured thereto. The rackfiflis providedwith a series of teeth 5| alternatelywith spaces 5?. for receiving the lower-ends 53 ;iand iifof escapement pawls 55 a ises respecti el The escapement'pawlsfi and .56, in thelpresent instance, take I the'form of vertically movable plungers slidably mountedadjacent their lower.

' ends in a bar 51 which isrigidly secured toa thereof.

bracket 58 fastened'to or forming part of the framework of the machine. Adjacent their 'upper ends the plungers 55 and 55 are slidably mounted in a plate 59 which is also rigidly secured, to the bracket 58 and provides asuppo'rt' for bearings 50 and -6I. Pivotally mounted in thebearings 60 and GI is a pairof shafts Hand- Secured to each of the escapement pawls 55 and 50isa collar 68 between which'and the lower surface of the plate 58 is provided aospring 59 tending 3131.811]- timesto force the lower ends 53.

and 54 ofthe escapement pawls 55 and 56 into engagement with the teeth 5| or into thespaces 52 0f the rack bar 50. o g x I The lateral spacing of the pawls 55 and 55 is such that-at such time as one of said pawls is seated inone of the openings 52 of therack bar 50 the other of the pawls is riding the top surface of one of the teeth of the said rackbar, in order that, as the onepawl is raised out of the occupied space the other pawl is in a position to drop into one of the spacesrin the rack bar, whereby the. bar 35 willbe movedlaterally to the extent of substantially one-half of the spacing of the teeth 5| of the rack bar, which is equal tothe spacing of the anchor pins 28, 20.1

Movement of the bar 30 may be accomplished by any suitable mechanism which in the present instance comprises a flexible element I0 hav ing one end secured to one end'of the bar 30. The said flexible element then passes around a horizontally mounted sheave II and is provided and 14 respectively secured to the

shafts

62 and 63,said arms being arranged to be engaged by trip cams l5 and I6 mounted in circumferentially spaced relation to eachother on the periphery of the tap drum I0,adjacent one edge As thetap drum I0 rotates in one direction, for example in the direction of the arrow 11 Fig. ,4, the cam I5 rides away from the arm,'|3

, and permits the pawl 55 to come to rest on the top of one of the'teeth 5I of the rack bar 50,

of the arrow 1 through an arc of substanstam; tially 350", the cam I5 near the end of such movement of the tap drum will engage'the arm 14 and thereby raise the pawl56 out of-the space 52. in

therack bar

50,1 whereupon the bar 30 will move to the right, as viewed in Fig. 3, I and the pawl 55 will drop into one ofthe spacers in the rack bar 50, thereby arresting the movement of the bar 30 by which the thread-laying

units

25, 25 are moved laterally to theextent" ofithe spacing between ,two of the

pins

20, 20.

The movement of the tap drum I0 is then reversed, whereby the said drum moves in the die" rection of the arrow 2, Fig. 4, through an arc of substantially350, as before noted, until" the;

cam -again contacts withtheiarm n which lifts the pawl 55 "OlltrOf ,its occupied space while the pawl 56 iszpermitted todrop into the space next to the tooth upon whichathe lower end 54 of saidipawl is riding. I

In thisumannerthebar and all of the.

thread-layinglunits are moved step by step across the face of thetap drum between the oscillations of the tap drum, causing each of the threads at. to be laid, continuously back and forth around the periphery. of -the tap drum throughout the breadth of-the. face of the tap drumas defined 'bythe-pin groups: a,. b; v

During such laying of the threads: at, said threads are drawn from individual supply spools 80, 80, which are rotatably mounted on substantially horizontally extendingsspindles 8|, 8| respectively, said; spindles beingsupported in

brackets

82, 82 respectively whichiare carried by transversely extending bars 83;83 secured to the front frame 8410f the machine; a j i (The threadsm, a: are maintained ina substantially taut condition 'by

brake shoes

85, 85

bearing directly on-the threads wound :on the spools 88,. 80,1said brake "shoes being secured to or forming part of

brake arms

86, 86 respectively pivotedat 8'! to brackets-88 whichare' secured to the tranverse bars-83,83; Each brakearm 88 is provided with a tension .weight' Bil-which maintains frictional contact between-the brake' The threads at: passpfrom'fthe supply spools 80, 80' over. a thread guideibar90 supported by brackets 9|, 9| which are securedto the front frame 84 of-the-machine. 4

Pivotally mounted on the guide bar 9|;is a series of drop fingers 92 having thread eyes 93 through whichthe threads :0, m pass respectivelyand from, which the said threads extend to-thread eyes 84 respectively carried: by the thread-laying units 25, thereby guiding the threads to the laying heads 40, 401:0f said The front, frame 84 is fal'so' provided with

brackets

95,, 95 which afford open topped slide bearings for the thread-layingbar 80i which is held down in said. slide bearings by a spring 9d. Anti-friction I rollers 9B and ,9! may be provided on oneor bothv of the brackets 95 to pre-' vent sticking of the bar in the guide bearings'of the brackets 95 during the intermittentlongitudinal movements of the bar. vIn-the present instance, the anti friction bearings areshown as being used 55 Qscillationof the-drum I0 is accomplished;

atone end only of them-r, aswin Fig. 1a.

through-aseriesgof internal, gear teeth I00 car: ried by and disposed adjacent one end'of the said drum and arranged to 'be engaged by the teeth of a pinion IOI which is freely rotatably mounted'onja horizontal shaft I02. The shaft I02 is rotatably, mounted in bearings I03, I03 whichare secured to'orform a part of a'bracket I04 which is rigidly s ecuredftogthe frame I of the machine. I

p The pinion I 8 I1 is secured to one; end of' a sleeve I which is freely mounted on the shaft I02, within the bearing I03, the opposite end 10f the said sleeve being provided with a 'clutchlelement I06 which isadapted to be engaged by a second clutch element I01 slidably mounted on and spline'd to theshaft-I02J I The clutch element Ifllisprovidedwithxa hub I08 I circum'ferentially groovedi at I09 to i receive short pins 1 I I0: carried by thearms I II "of "the ried' by. a second brake arm I44.

forked end :2 formed. on the clutch-control lever I tiwhich ispivotally mounted at I I4 to the frame of the machine; said lever being provided with a handle H5 by which the said clutch element Ill! may be actuated toiconnect or disconnect the clutch element IIIE with the shaft, I82, whereby the pinion IQI through the" gear teeth I60 will effect. rotation of the tap drum I about the axis of the shaft 3.;

The shaft I02 is driven by a pulley IIB- secured thereto and which is operatively connected by a belt I I to a pulley H5 secured to one end of a shaft IIS which is rotatably mounted in a bearingIZIl rigidly mounted on the frame I. The

, opposite end of the shaft H9 is provided with asprocket wheel .I2 I which; through a chain I22, is- 'operatively' connected to a corresponding sprocket on one end of the armature shaft of i with the switches a reversible motor (not shown); I 'The reversible driving motor is adapted to drive thedrum I 0, through the chain of mechanism abovefldescribed, first in one direction and then in-an' opposite direction, through the arc of substantially 350 as-iabove noted, under contap'drum I It; Each of the cams I25, I 26 comprisesa swell I28 forming the head of a c clamp having an opposing head I29 in which is mounted a clampscrew I30 by which the said cams I25 and I26 are respectively secured to the bar I21.

Mounte'don the'frame I" in the circular path of the cams I25 and H6 is a switch box I3i which is provided with switch-actuating plungers I32 and I33,; which are respectively engaged,

alternately, at the opposite ends'of the oscilla tions-of thetap drum IIL-by the cams I25an'd I26 for effecting reversal of the driving motor above noted r 7 Electrically connected in' circuit with the motor is a magnetic brake comprising a solenoid I35, the plunger l36f0f which is connected by a-link I31 with a brake-actuating arm" I38. The flactuating arm! I38- is" pivotally mounted at I39- onfa' brakelever- I46 arranged at one sideof the shaft I62 and-provided with a'brakeshoe I4I for engagement with the peripheral surface ofabrake I242 secured to the shaft III-2.

Opposing the-brake shoe MI and engaging the periphery of thedrum I42 at the opposite side thereof is a secondbrakeshoe I43 which is car- The brake arms I'4'0uand I44'are pivotall y secured at IE5 and I45 respectively" toa base plate I41 which is rigidly mountedon a bracket I 48 secured to the stationary bracket" I54. The brake-actuating I arm I38 is provided with a right angle extension I49 which is pivotallyconnected at I50 to a block I5I secured to a brake rod I52, one end of which is anchored 'in'a' block I53 pivotally mounted at I54 to the brake arm I44.

, of the shaft in, whenthe circuit to the driving 75:

motor is interruptedby actuation of the switch I The opposite endof the brake rod I52 is slidably mounted in a plate memos" actuating plungers- I32 and I33- of the reversing.

switch I'3I above referred to. 7

During energization of the motor the coil I35 is alsoenergized which causes a downward movement of .the plunger I36 by which the actuating released during. the periods of movement of the drum III in either direction. 5 Q V Stopping of the motor and the consequent stopping of the drum I0 or a reversal of the movement thereof may be accomplished at'jany time by operationof the control switch I pro-- vided with buttons I BI, I62 and I 63 which con-" trol switches which are connected in electric circuit forming no part of the present invention in the. switch box I 3'I above referred to.

Stopping of the drum in at anytime as a result of. the breaking of one of the yarns 'ai'may be accomplished by the finger 92 associated with such thread dropping into contact with a contact bar I 65 carried by and insulated from the brackets 9i, 9|. and connected to one side of a part ofthe electric circuit above noted; the. opposite side of said part of the electrical circuit being formed by the framework of the machineor by the bar 953 upon which the drop fingers 92 are mounted.

After each of the thread's'r has been laid'on the periphery of the tap drum II] around the cor responding series of pins a, b the thread is severed from the'supply coming-from the spools and secured in any suitable manner to the drum or to the last pin of the series, it being noted that the opposite end of each thread, at the beginning of the thread-laying operation, is likewise secured in anydesired manner to the tap drum'as by knotting. about the first of the pins 20 of the series.

After the tap drum I8 has been completely loaded and the'threads a, :c severed from the supply in the manner above noted the clutch IBIS-Idlisreleased permitting the drum ID to be rotated freely about its'axis for the purpose of bringing the various portions of the threads into alignment with the color-laying wheel I-I4 of the color unit I I5 which, as above noted, comprises a carriage I16 mounted on. rails I" for movement transversely of or parallel to the axis of the tap drum II) whereby the number of threads laid on the face of the tap drum will'receive' the various colors which go to make up one longitudinally disposed course of pile tufts in the finished carpet, it being noted that each ad-' jacently disposed pair of threads'or thread sections on'the tap drum I6 are exact duplications of each other, whereby each thread section will produce the tufts for one-half the'lengthof the carpet unit or rug to be produced and whereby the two adjacently disposed thread sections will complete the course of pile tufts throughout the full length of the unit of is incorporated. I

' Those portions of the thread which pass around the pins 20 as the coloring "of the threads is comfabric in which the thread pleted and before the threads are removed from adjacent the rows of pins'2il, whereby continuity V of the c'oloris provided and no line of demarcation between thetwo halves of the thread going into any single longitudinal course oftufts is perceptible."

" The 'movement of. "the; drum I toibringpthe various; portions: of the. threads: carried thereby into printing alignment withgthe unit H: is accomplished' in the, usual manner employed with tap drums. of the priorart and the mechanism by which suchmovements of theitapdrumare accomplished, and whereby alignment of the various portions of the thread. sections is assured has been eliminated'fromthcdrawings in the present instance as the same form no part of the present invention. f 1: .12.

Fig. 18 illustrates afabricunit or rug A, which is divided longitudinally into sectionsor halves A and A respectively, while Fig. 19v shows a single longitudinallyor warpwise extending line or course of piletufts or uncut loops A as the case may be, which are formed of the continuous thread :0 shown in Fig. 20, the two halves r and x of which are provided withapluralityjof diiferently colored color units C :and C disposed in symmetrically balanced relation-to 'eachother at opposite sides of the; center point 0 which forms theturn in the thread wh re the thread is looped around one of the anchorage pins 20 in thedrum.

Fig. 22 illustrates the continuous thread a: laid back and forth to provide a pluralityiof alternatiii) . the other of said anchorages. 1

2. A warp printing method which consists in laying a continuous warp thread back and forth between relatively spaced anchorages directly from a thread supply package to provide a series of substantially parallel runs, coloring said runs substantially simultaneously in units of predetermined order progressing from one toward the other of said anchorages, and coloring the runconnecting turns of the thread at the said one of said anchorages in accordance with the coloring of the color unit next adjacent said one anchorage.

3. A warp printing method which consists in drawing a continuous warp thread from a thread 7 supply package and directly laying said thread back and forth over a supporting surface between relatively spaced anchorages as a singlelayer composed of a series of substantially parallel thread runs, and coloring said runs in units of predetermined order progressing from one toward the other of said anchorages by a color applicator passed transversely across the series.

4. A warp printing method which consists in drawing a continuous warp thread from a thread supply package and directly laying said thread back and forth over a supporting surface between relatively spaced anchorages as a single layer composed of a series of substantially parallel thread runs, coloring said runs in units of pre-, determined order progressing from one toward the other of said anchorages by a color applicator passed transversely across the series, and coloring the run-connecting turns of the thread at the'said one of said anchorages in accordance with the coloring of the color unitimrnediately. adjacent said one anchorage. p i

5. A warp printing machine comprising a drum, 7

a series'.=of..posts projecting from the peripheral V surface ofsaid drum. in laterally spaced relation transversely of said surface, aseoond series of V laterally spaced posts projecting from said surface in circumferentially spaced relation to the first .1

said series, and means for laying a continuous warp thread around the peripheral surface of said drum between and. around said .circumferentially spaced posts alternately. a

6.: A warp printing machine comprising a drum,

laterally spaced posts projectingfromsaid suri face in circumferentiallyspaced relation. to the ,a series. of posts projecting from the peripheral first said series, andmeans for laying a continuous warp. thread around the peripheral surface of said drum between. and around said circumferentially spaced posts alternately on successive posts of each series; y

.7. A warp printing machine comprising a drum,

a series of posts projecting from'tne peripheral surface of said drum inflaterally spaced relation transversely of said surface, .a second series of laterally spaced posts projecting from-said surface in circumferentially spaced relation tofthe :first said series, means-for laying a continuous warp thread around the peripheral surface of i said drum between and around said circumferentially spaced posts alternately, and means for moving said thread-laying means 'step by step transversely of the drum for laying the thread around the posts of each series successively.

8. A Warp printing machine comprising a drum, a series of posts projecting from the peripheral surface of said drum in laterally spaced relation transversely of said surface, a second series of laterally spaced posts projecting from said surface in circumferentially spaced relation to the first said series, means for laying a continuous warp thread around the peripheral surface of said drum between and around said circumferentially spaced posts alternately, means for moving said thread-laying means step by step transverse- 1y of the drum for laying the thread around the posts of each series successively, and means for oscillating said drum between the said intermittent transverse movements of said thread-laying means. V

9. A warp printing machine comprising a drum,

a series of posts projectingfrom the peripheral versely of the drum for laying the thread around the posts of each series successively, means for oscillating said drum between the said intermittent transverse movements of said thread-laying means, and means carried by said drum for effecting said transverse movements of the thread-laying means at the end of each oscillatory movement of the drum.

10. A warp printing machine comprising a drum, a series of posts projecting from the peripheral surface of saiddrum in laterally spaced relation transversely of saidsurface, a second series of laterally spaced posts projecting from said surface incircumferentially spaced relation to the first said series, means for laying a contin means for oscillating said drum between the said intermittent transverse movements of said thread-laying means, means carried by said drum for effecting said transverse movements of. the thread-laying means at the end of each oscillatory movement of the drum, and means carried by said drum for controlling the said oscillatory movements thereof in timed relation to theltransverse movements of said thread-laying means.

11. The combinationof a tap drum, two circumferentially spaced series of laterally spaced thread-retaining elements on the periphery of said drum, thread-laying means, means for oscillating said drum to bring said circumferentially spaced series of elements alternately in thread-receiving relation to said thread-laying means, and means for moving said thread-laying means transversely of the drum between the individual oscillatory movements thereof, for laying said thread to the individual elements of each series successively. v

12. The combination of a tap drum, two circumferentially spaced series of laterally spaced thread-retaining element's on the periphery of said drum,-thread-laying means, meansfor os cillating said drum to bring said circumferentially spaced series of elements alternately in thread-receiving relation to said thread-laying means, a toothed element operatively connected to 'said' thread-laying means, means for moving said toothed element and said thread-laying means in one direction, a pair of pawls operatively associated with said toothed element 'for ar resting said movement, and means carried by said cessively.

13. The combination of a tap drum, two circumferentially'spaced series of laterally spaced thread-retaining elements on the periphery of said'drum, threadrlaying means, means for oscillating said drum to bring said circumferentially spaced series of elements alternately in thread-receiving relation to said thread-laying means, and means for straightening the immediately precedingly laid section of the thread on the periphery of the drum to permit laying of the new thread section immediately adjacent thereto during each oscillatory movement of the drum.

THEODORE H. RUSH.