US1046792A - Machine for making metallic printing-rollers. - Google Patents

Description

J. W. IPPERS.

MACHINE FOR MAKING METALLIC PRINTING ROLLERS. APPLICATION FILED JAIL 3, 1910. RENEWED APR. 1, 1912.

1,046,792. I Patented Dec. 10, 1912.

2 mum's-sum 1.

J. W. IPPERS.

MACHINE FOR MAKING METALLIC PRINTING ROLLERS. APPLIOATION FILED MR3, 1910. RENEWED APB. II 1912.

2 SHEETS-SHEET 2.

wuc M206 Patented Dec. 10, 1912. j

JOHN. w. IPPERS, on NEW roman. z fns' smnon or ONE-HALE 'ro. CARL A; ROESSEL,

- or BnooxL-nt, NEW. Yemen;

,- iw." w.

MACH INE 1 FOR .MAKING METALLIC; PRINTING-ROLLERS Specificationof Letters Baten't.

Application filedil'anuary 3, 910, Serial No. 536,046. Renewed April ,1, 1912.; Serial 1%., 687,774.

To all whom it may-concern:

:machine' for making metallic printingroll ers, Fig; 2 is a rear-elevation of the same,- 'partlyin section through .the supporting-- citizeirof'the United States'ofAmerica, residing in New York, in the borough. of Brooklyn, county of" Kings, and State of New York,'ihave invented certain" new and useful Improvements in Machines for"Ma k- 'ing Metallic Printing-Rollers, of which following 15 a specification. 1

This invention relates to' an, improved machine for makingmetallic print ngsrollers by which inked designs niay be transferred by repeats from a transfer-surface to a printing-roller without- .dlstort ng'or squashing adapted to receive said design, gearing be tween the shafts of said rollers for rotating them in contactwith each other for transferring'- the design to thelfprinting-roller, means fo'r separating said rollers as soon as the design is transferred, and means-forlongitudinally moving the transfer-roller to apoint adjacentto the first transfer-designfor' repeating the design on the printing roller.

. Theinvention consists further of indicat ing' means in connection "with the transfer roller and the carriage supporting the same for correctly registering the deslgn on the transfer-roller in relation to the printingroller so as to repeat the same, and the inventionconsists lastl of certain additional features of constructlon which will be fully described hereinafter and finally-pointed out in the claims.

represents a front-elevation of my improved standards of the machine, Fig. 3'1sa vertical transverse section on line 3, 3, Fig. 1, drawn on a larger scale, and Figs. 4: and 5 are re-- sp'ectively a sideeelevation of the transfer-,

roller and a vertical'transvei'se section of the same on line 5, 5, Fig. 4 drawn on a still 'largerscale.

Similar reference characters Indicate cor-- responding parts throughout the differentcovered with repeated designs.

fetched, so asf-to leavef-the-desi The designon; the} transfer-r0 ler is then In the accompanying drawings, Figure 1 the machine consists of a basel and upright, side-standards 2. 'In recesses at t:he,-,upper part of the side-standards -2, are guided i In applying. aidesigni'to acoppcr printingroller, which. ,istobe used in printing textile fabric, wall-paper andthe like, it has been cn's'tomaryh eretofore to engrave the design I by hand'on the printipgroller; onto transfer it ,tog theuroller bytlie ,use of; transfer-paper.

Patented Dec. 10,1912.

These processes are expensive and open to any objections. By the improved machine {delicate designs can be transferredfrom a hard-surface transfer-roller to ,a printingroller and "repeated on the same until the surface of the printing-roller is completely 7 .In order to accomplish this result, the surface of the transfer-roller, which is preferably of zinc, andthe surface of the printing-wroller, which is preferably of copper,- a're smoothened and polished and then ,etchedoverthe surfaces which are, to li'eceive the in k of the design. This etching-may be done, for example, by asolution of one ounce ,of nitric acid, twelve ounces of-"xvater and ttygo ounces of alum powder, for about two minutes, so that a smooth but finely-grainedsurface isimparted to. the surfaces, o-f the .two: rollers. The design applied to the zinc" transfer-roller in anyord naryway,.either by use of ordinary transfer-paper, as .is wellknown in the art, or. by a flexible transfer-plate secured to the. transfer-roller, S a-ftergvhkihv the ink of the design is comerted into 'a 's olid resist;' and the'portions which are, unprotected are then in relief.

Referringtothe frame of journal-bearings 3. which supportihe shaft .5 of the 'Printing-roller-lO. The shaft 5 is provided at one end with a gear-wheel 6 which receives motion from apinion 4 "on a short shaft 7 provided with a hand-wheel 8, the shaft7 being supported in bearings 9 on the right-hand standard 2. Above the journal-bearings 3 of the shaft '5 are arranged on the side-standards vertically-ad justable followers 11, between whichjand .the journal-bearings are interposed. blocks' the ii'p eif ends-of the side-standards, as shown 1111' F1g"-3.- The sere\\-sp ml'1es..13'

of the followers 11 are provided with hand- 11,5 'xi'tli elfat their; upper endsso as to periilit tlie' -rai'sin'g'oi lowering of the followers w'h'enit is desired to remove the shaft- M th'e' printing-roller e1 i'ephieing it; title;- which the followers are "lowered on -the' fielding blocks for pressing theinonto the 5 upper portions of the? -3ournalhearings, Theyieldingyliloeks' IQ of felt m- "othei' mate rial sui-ve fOI the purpose of permittingthe exerted on the smile.-

ti v'e (lian-ieters of; the p iin ting aihhtrahsferi-ollerlei that "upon "the {rotation 'ofthe shaft I the" slu'njt shafti-ancl' the printing-roller, flit 5 of lonhitiidin'ill iii'oiemeiit tlie'tetil snh otthe-"gears 17 and-518i 0 The rollers 22 aie'-1 rovi(ledin'line'with the @011 ef 't-h shaft at the p'rinting ollerz cent to the ends of the transfer-rollee'QO and which shift the "latter along with the,

65 carriage when the same is moved in one printing-roller to'flvi'eld when "p 'e'ssure isj enxid'sfof'whih engage" fihngedsleeves which "tire ibeatedndmak d ii'eetiofi oil the oath? aver" uipiatfbnit 2?.

Thr'eidedsocltet 31 are supported on the .-teersiipnightsfflg;and; engaged by a. screwspindle 32 which turns in beatings 33 of the side-standards 2, and which is rotated by a hand-wheel 35:, so that 'the carriage '25 an the itlfl l lsfef-fdlkl" 20- can he sh'i'fted on the platform 27 to any desired point. A pointer on the rear-upright 29 and a horizontal scale Sti s'erie for aceu'rateiy' registering the osition of the transfer-roller" in its .various positions lengthwise. of: the printing-roller. A gr'aclunted disk 38 onjtheleft-hand st-and :irdfilhn'd an indieator 37v on the hub of the hondkwheel serve to adjust the final position of the); tihiisfer-iollen 'aml the: design on the same relatively to" the circumference of theprinting-roller. I

:The' threidedjsoekets31-51re split. that is may, inade of t 'o selhi seetions \vliieli are supported ?011 1 vertically sliding bracket v that i t irningflthe"disks, the-split and'im 1 f-jthreaded-"soeltet-seetions clear the sete piii clle" "tnfd'fplei'init thereby the easy iiiiid co shift ng of the earrigigeand v el' fin. longitudinal direction ififj 'thejf-g i de so the "lator 1n,.- so that the "ti'misfe v v requir d. positionfrelati'vely to the 'pz' intingl 'ioller ;fatter whieh thesocket-sections are to engagement with returned;- the disks thefserew spindle.

is' siqipo1'ted; below the platform,v a shaft which iSheld-iri'positidn againstlongitudinal displacement. by collars 51 hearing -agiiinst the U inneiw-faces of the 1 standards, and whi'eh'is provided at its outer :ends'wit'h f Bevel "genr-whe'elsiifl that :mesh with ihevel g'dr wheels "'53", ;-ofj--equ'al 'si'ze, 'pla'eed on the l'owef threaded fieiids: of vertical-: shafts 541 To one end ofthe shaft 50 is applied a ha'nd= iwheel 55' tot-r turning the shat-50.. :Therinare? guided in eot responding holes: in the:

it eifi0rly th1 eided 'hubs' 'ofthe A henizontel" {bevel gei r-wwlieels' fiii re appliedto'the low'er Y threaded ends of Lthefiipright shafts '54c thet 1 righijflilgsaidrdiskshavinghandles 71, so

.. (iller':e;in jhe placed into the "At the loweijparts o'f the sidestandzitds fside-Standards, -:so"- as'to produce by the turn-.

ziii'g oflthe sliaft fig 'f the raising or?flower ing of the i pfighfl'shafts 54 according. to

' z the i'direction Whieh' the governing "shaft 50f is turned." -=The'-.upper' -ends oft-he l p-i right-shafts 54%engagemecesses in the-lower:

ends of the guide-blocks 3 of the =s'haft'5rof f th ppinting i-o11e1f and, permit thereby the lifting or loweringnf the same :out of i or;

into-contaet with the'surface of the trans fer-roller. The raising of the shaft of the tn'inting-rollerpermits-the direct "adjust ment of the carriage of the transfer-roller printing-roller.

The transfer-roller shown in detail in Figs. 4 and 5. It is provided with a shouldered ledge 45 which is attached by screws 46 to the transfer-roller, said ledge being provided with screws 47 for clamping one end of a flexible transfer-plate having the design to be repeated on its surface. Adjacent to the ledge 45 is arranged a split clamping-roller 48 into which theopposite end of the transferplate is inserted and then clamped thereto by its screws. The clamping-roller 48 is then turned slightly on its axis, so that the transfer-plate is tightly stretched around the circumference of the printingroller and retained in this position by means'of sprlng-pawls 49, which engage toot-1143 adjacent to each end of the clamping-roller 48'. The spring-1:)awls 49 are released from the teeth 43 when it is desired to renuwc the transfer-plate and replace a new one into position on the transfer-roller. r

The operation of my improved machine for making metallic printing-rollers is as follows: The carriage on which the transfer-roller is supported is moved by the screw-spindle to one end of the machine so as not to come in contact with the printing-roller. A flexible transfer-plate, the design of which is properly inked with .trans fer-ink, in then mounted on the transferroller by inserting and clamping one edge in the ledge 45 and passed around the transfer-roller, and then attaching its opposite end in the split clamping-roller, the plate. being then tightly clamped by the screws of the clamping-roller. The clampingroller is then turned on its axis so as to stretch the yielding transfer-plate around the transfer-roller, as shown in Figs. 4 and 5. Simultaneously the spring-actuated pawls engage the teeth at both ends of the clamping-roller. The transfer-roller is then placed into contact with the printingroller, which is then turned until it is lifted by the raised portions on the lower contact-rollers so as to be moved out of contact axis into its former position and the surface of the transfer-plate inked in again.

, The printing-roller is then lowered again so that the transfer-plate is placed in contact with ""the printing-roller. The hand-wheel of the shaft of the printing-roller is then turned, so that the inked design on the surface of the transfer-plate is transferred to the printing-roller, forming the first repeat on the same. The shifting motion of the tance required so as to'transfer a second repeat on the wanting-roller, and so on..

The extent of the axial return-motion of the transfer-roller is indicated by the in dicat-or on the screw-spindle, and the longitudinal motion by the pointer on the movable carriage which is moved over the stationary scale. When all the repeats required by the width of the fabric to be printed are transferred to. the printingroller, so that it is entirely covered by the successively transferred repeats, the print ing-roller and its shaft are then removed from the machine by raising the followers, and the printing-roller is then slipped off from its shaft and a new printing-roller placed thereon. The unprotected portions of the printing-roller removed from the shaft are then etched away, after which the printing-roller is ready for printing on sign, a printing-roller adapted to receive the design, 'shafts supporting said rollers, in

termeshing gears onsaid shafts, contactingrollers at each end of each shaft, the rollers on one shaft having raised portions on the periphery, and means for rotating said shafts.

2. The combination of a transfer-roller adapted to be inked with the required design, a; printing-roller adapted to receive said design, the printing-roller being longer than the transfer-roller, gear-wheels between said rollers for positively rotating them in shifting the carriage and transfer-roller in longitudinal direction, and indicating means for registering said transfer-roller with relation to the design previously transferred to said printing-roller.

3. The combination of a supportingframe, a transfer-roller, "an printing-roller above the same, means for imparting simultaneous rotary motion to the printing and transfer rollers, a carriage engaging the transfer-roller, means for moving the carriage and transfer-roller lengthwise of wi l the printing-roller, indicating means for utransfer-roller whenthe inked design 'there-.

onfis transferred to'the. printing-roller.

a 4. .The combination of a transfer-roller,

a printing-roller, shafts for said 1 rollers, means for. constraining. said rollers to rotate with equal peripheral speed, and pairs of 00 operating rollers mounted jon.'said shafts re: .spectively beyond the ends ofsaid rollers,

one roller of each pair having a raised portion on its periphery.

5. The combinatlon of, printing-roller,

a longitudinally movable transfer-roller, a

longitudinally -immovab1e shaft for said transfer-roller, means for constraining said rollers to rotate with equal peripheral speed, means for at will causing both ends of said printing-roller to be'simultaneously raised, additionalmeans for automatically raising said printingroller, a carriage engaging said transfenroller, asplit screw-socket carried by the carriage, a screw-spindle engaged by said socket for shifting the carriage lengthwise of the machine, means for releasing said split socket, an indicatingfingercarried by said spindle, and a stationary graduated disk for said finger;

' 6. The combination, with the side-standardsfof asupporting frame, of a printingroller the shaft of which is supported in journal-bearings in said side-standards, a

ing-roller after each rotation of the printing and transfer rollers.

In testimony, that I claim the foregoing as my invention, I have signed my name in presence of two subscribing witnesses.

JOHN IPPERS. Witnesses:

PAUL GOEPEL, FANNIE FISK.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. q. I i

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