US2115376A - Adjusting and operating mechanism for enclosed ink fountains - Google Patents

Description

wErssY 2,115,375 ADJUSTING AND OPERATING MECHANISM FOR ENCLOSED INK FOUNTI'NS April 26, 193.8.

Filed May 23, 193e 5 sheets-sheetflj INVENTo ffl@ ATTORNEYS A. WEISS 2,115,376 ADJUSTING AND OPERATING MECHANISM YFCRENCLOSEDKINK'FOUNTAINS y April26,r193s.

Filed May 25, "1,956 f5 sheets-Sheer 2f I ...w-1]# .filiali/Ill@ INVENTOR ATTQRN EYs;

lApril 26, 1938.` wEgSs 2.115,376 f' ADJUSKTING AND OPERATING MECHNISM FOR ENCLOSED INK FOUNAINS Filed May 25, 195e `5 sheetsV-,sheet 3 INVENTOR A mw .w LQ. m. wa

A. weiss 2,115,376

ADJUSTING AND OPERATING MECHANISM FCR ENCLOSED INK FOUNTAINS April 26, 1938.

Filed May 23, 1936 5 Sheets-Sheet 4 mag/7M n *www JQ ATTORNIQ@ April 26, l1938.

A. weiss 2,115,376

ADJUSTING AND OPERATING MECHANISM FOR ENCLOSED INK FOUNTAINSl Filed May 25, 1936 5 Sheets-Sheet 51 Patented Apr. 26,1193@A d l d *l d 2,115,371@ y' ADJUSTING ANDv OPERATING MECHANISM vFOR ENCLOSED INK FOUNTAINS r Adolph Weiss, Brooklyn', N. Y.

Application May 23, 1936, Serial No.- 81,409

Y 1 d aeolapimsp. (Cl. 10i-157) d y Y ,y d AThe present'invention relates torotary intaglio a control mechanism for fountains having an' printing presses having enclosed fountains withinking head, the mechanism affordingagsequer'i-M in' which ink .is adapted to Vbe received and-ap;y tial"` operationsuch thatr improper steps-cannot i plied'to the printing'cylinder vwhiclfi'is-partiallybetaken in assembling'o'r disinounting'dtheihead.

5 enclosed by the fountain. In applicantsqpatents In this connection',l it is proposed to providea` 5 Reissue No. 18,856 granted June-6,w1933, and No. control by means' of "which thedrain for the 2,014,303*V granted September 10, 1935, there "is head isiirs'tv opened by the operation of removing shown and described an' enclosed fountain ofV the head, and, after the drain has been opened,

the above character. i l further continued operation of -the 'control mechd The` present inventionhaslfor an object the4 anismi-lreleases` the felt sealing member,"afterl0 provision of a fountain of. the above character, whichthe head is unlocked.

r" the' construction Iof which '-is greatly simplified, A further object of the invention is to provide, d

and the control `and maintenance of-which is: in combination with an enclosed fountainoff they greatly facilitated. f above character, doctor mechanismv and operat-l I A further object of the invention isto provide ing means" therefor; vtogetherfwi'th means'ffor l5 a construction of thefabove character in which mounting the doctorr and associated' elements inA the control elements areeffectivelyprotectedi'and such fashion as to permit them to be readilywand` separated from the inkand ink vapors present quickly moved from a normal operating position' within thehousing; i tor atretracted position an'di vice vers`a,"withcut"'j A further object. of thezinventionis to provide l requiring the exercise ofca'rejwhen thence-tor" 20` a housing in which the upper portions are 'so is returned to its proper normal wiping position. constructed and positioned that interference with A further object of thef invention is to provide, the web and. with access' to the press is"pre-'.' in `combination with doctor mechanism of the `vented.A i Y -Y a l above character, means for effectively adjusting A further object of the invention isftoprovide, and locking the doctor in a desired position wint-* 25 in combination with a housing having an inking out destroying Vthe 'enclosure about a portionof head,"meansl for automaticallyrdraining the ink 1 the cylinder. v l, from the head prior to the removal Ofthehead y A further object of the invention is to providel lfrom thefountain'. l' a doctory adjusting .andlccking mechanism ofzthe y A further object of the invention is toprovide Y above character in combination with a driving'go a housing of the above character having acon-. connection for reciprocating the do ctor1..,suchrv struction such that the exterior surface is formed f driving connection being preserved. atja'lltimes with a minimum number of projectionsythus faregardlessl ofthe-position ofthe doctor mounting Icilitating the-cleaning and maintenance thereof. i mechanism. 'p

A further object of the invention is .to provide, A further object of the inventionjis to provide 35 in combination with an enclosed fountain havingy a doctor reciprocating mechanism which: serves means 4to apply ink vdirectly to the cylinder, not only as the driving and reciprocating means mechanism by means of Whichfthe inkingzdevice for the doctor, but also asa ymeansupon which y may be` effectively controlled while preserving a k the doctor is mountedfor rocking motion hinged-"4 40 desired closure about a portion of the cylinder. ly from a wiping to a retracted position. l 40 A further object of the inventionis toprovide A further object of theinvention'4 is to provide", d an in king device in combination with structure` in combination with an enclosed housiiigfofthe of vthe above character by means of whichvthe character above described, an improved sealing position of the inking device may be effectively mechanism by means of which the ends of the varied by movement thereof in one or more'dihousing may be effectively sealed, the construe-'.145

rections in order that the` device may beproperly tionbeing such as to avoid excessive wear between positioned with respect*toprintingcylinders of relatively-movingparts. -i

varying diameters` t d 4 .l j A further object of the invention is "to provide,

A'further object of the inventionA is to provide, in combination with an l enclosed yhousinggfr'end 0 in combination with means for-,movinguand adsealing mechanism bymeans -vof which aneffec- T50 justin'g the position of thej inking `head of fountive seal may be preserved between the end of tains of the'above character, means by which the the cylinder and the housing` end wall, and:V bef` f fountain may be effectively lockedy in av desired tween the` reciprocating doctor and asealingy; position. y f i i ,meansuponthe side o f thecylinderoppositefifrom Il, A further object ofthe invention is to provide Y the doctor. v

UNVIED- PATENT Affurther object of the vinvention lis to a-mcchanism by means of which ink which acci- A further object, ofthe invention lis to provide.

v in combination'with 'a' doctor control mechanism, Y an'l indicator by meansof which the wiping pres Asure of the Adoictor-mafybe indicated.

A further object "ofth'emvnuon is 'tdprbvide fa construction'wherein the wiping mechanism isv i i supportedfupon la 'relatively rigid supporting structure.

i 'Y Furthen objects'jjofjthe1invention willi 'be a.p'' "parent-asjit-is des'cribedin connection'with the@ accompanying drawings, wherein n l Figure 1 is a View inside elevation ofahous#A ing`A constructed infaccordancewith' the present :invention land looki'ngfatvthe inking side of the housing.;` f

Figure :3V- is va -view jin section; vtaken on lline La of Figurwe 1 andwiookingvm the` direcuongof f i y f Y pins 33,-seryetomountthe table 2 1 'andzbracket the,larrowspzy v 29 hingediy in, order thatlthe structure, maybe*y thearrdws: f Y f w ylafigurrea 5 k isv afyiew y.in section,l taken von liney SfSi-ofFigureliandlooking in thedirectionfofrf the arrows:

improved-,end seal mechanism ulhpf Figure'z'a'd lookiiigini'the direction* V0f the arrows@ .i i f i Figure'12gis'ajviegvv"iusenongtakenminne y|2-[I2'Qf FigureY :1 0 a dflooki'n'g intne direction 'prima arrow/s f'thistview uustrtmg metrage' mechanism'bymeansoi which the cover is mountrfiguregyis is a viewjinseugn, 'takerifo'njrinef 'ls-leof `Figure?, andiooking in the direepiion foi theV arrowsfthisr` 'View' illlistrating'the in1icat.4

of I thej 'arrows, tiiis:view illustrating mel lock f "mechanism between y theapron and the stationary perdonar the doel-,orfmountmgmehanism; Fgre v14 is a. view/inl section, taken on f-iinev 4 714.Y 0f Figures randV 7 *showing Vthe elements `Figure flxis'af/view in section; takenfon line provide -if Upon the kside ywall 2|- is :formed extendinghorizontal iiange 24, having an angu` i l larly extendingiiangev 25. The side wall portion "forwallplate 26 Vis formed withfa horizontal table "21 uponwhioh one for" more ,guide rods 28 are Fislire; 2,- is inleg vier/0i the inkin Sdei 0f: the 1 housing shown' in Figure 1v ,with a lportion of theainkving 1 head broken .away landv in section to Y illustratethemanifolding of Athe inking head; l

tateiiaccessv to, the fountai n.`-V

In forder, that i the guidezrods- 28 ,may be properly positioned, v'guidesf-M are,` formed ronxthefbracket 29 being connected ltheretofby. means or websfj vThe guides 34 are'jfomed withzguide l waysq36 withinl .whichythe guide r'o'ds28 Vareslid-- A ably-received,` the guide rods; beingliormedvwitha-f i teeth '31 which aireadaptedV to, be f engage'd by gears 38, mounted upon a.shaft39rzjThe-shaftf 3'9.is journaled in bosses 40; alsosiorniedr,on'v the? webs 35, thus]providing'fa:` means by; which al1- 1Q eV y7 ,isr a iriew elevationushowingl., the: doctor side ofthefink housing vof a',- fountain constructed in'accordance with, the present n ing mechanismby means lof which the wiping pressure ofthe doctor may be indicated; and

't Figure 17; is a plan View ofthe end seal mechanism illustrated in Figures 8 and 9.

With reference to the above drawings, thejiious-'- v fingwill be seen to include a sump -20 (Figure f 14)' having kside Walls -ZI-and 2 2'.' A pipe23 communicates with the lowest position ofthe sump` andperrnits inkto be withdrawn'therefrom by a,suitabieqgxumpingend recirculatingin echanismv Y ,asshown particularly*inwapplicants Patent No. y u

2,014,303 above referred to. f

secured. i

The kguide i'fo'ds 28areimouiited upon a loiigi-` i 1 tudinal bracket'forming a hinged side walll porj 120; 'i y tion 29 havinga base portion k3l) adapted to, enj- Y- gage the p1ate4124'Whenthemechanismisin itsg normal operating conditiony-as illustratedyin.Fig-"1V ure14 to form cooperatinglongitudinally extehding sealinglsurfaces. l v'The bracket 29 isf; formed/ withl ai plurality ofzpairs fof spaced; hinge `arms- 3| Ywhich,cooperate Ywith aperturedv bosses-32,?l

formed vuporijthesidewalls 2|; and, -withhinge swungaaway from Vyitsv normaljvposition vto:ffaci1i'' an inwardly;

ofathe fguidefr'odsj28, are-'moved simultaneously;

This motion results from, operatingfmecha1 nism mounted intermediatethe ends of the brack f etj 29fiandfinfcluding`a housing 4 I` which-issecured tofbo'sses 42 and 43, forrneciuponr the :bracket-29 f tion-ofthe wall 26. i v

Y Upon the :horizontal 'tableg21 alyreentranty ree taining Lan'gei, is provided', an inking head 4 9 #being received'upon thetab1e.V Thehead49 iss i formed with abase having an elongated groove to receive the angends Land. be locked. thereby. 1 The base 50 is formedwith'spaced'vreoesses 5I"ad A jacentthe ends thereof;suchrecesses servi'ngto` i" Y receive lockingfmecha'nismto belpres'ently c le'V scribed;v kThehead 14S-'and base` 50 are* seclil'e'@i together by means :of bo1t's"52 and' thehead is lockedinltheposition"shown'i-n'Figure ibymeans jl of a' carni SILsIGigure` 6) Whichfis imounted jupon/a1 f vertical shaft 54', journaled in aboss .SS/whichfis'f l 'andbasefplatez 30, respec'tive1y LA Adrive shaft;V i

Y M -is journalerd in the housing 1M, and, bracket" I i 29, beingfprovided with av square'dsendv45"andf' -a`worm 4E'. A worm wheel `f41lisspiined=to the l shaf t39,-thu`sk transmitting power from the .drivef` direction lvertically to adjust lthe-verticai-posi--55 Y [raf 'I'he rack 51`is also shown in Figure liwherein the mechanism by means of whichl the llocking` cams 53 are operated is illustrated .in greater -detail. For this purpose, a shaft 60jlsmounted infthe head 49 and provided with a manually operable crank 6| as Well as a pinion 62 which engages the teeth of the rack 51. By'turning the crank 6|, the rack 51 may be moved in either direction, causing the shafts 54 and cams-53 to be turned.

Upon opposite sides of each of the shafts 54, and

, to be engaged under the flanged portion 61 to 14 of any suitable material such as felt', or the like, ,Y

this strip being secured to'- the bracket 69 by Y means of screws 15 or the like. A positioning strip 16 is also provided within the ybracket 69, screws` 11 securing the same in position in orderthat the lock the head in the position shown ,in Figure 4. When the rack is moved in either direction from the position shown in'Figure 4, the cams 53 are turned and, upon motion thereof through 180 degrees, the rollers 65 are engaged and the base 50 is retracted from the flange 48 to unlock the head and permit the same to be removed.

In order that the fountain may be effectively p sealed to prevent substantial evaporation of-the volatile ingredients of ink that may be used in the housing, the head 49 is provided with a removable bracket 69 which is locked in a normal sealing position by means of a spring lock plate 10. To this end, the bracket isformedwith a plate 1| having a positioning flange 12. 'The head 49 is formed with a longitudinal shoulder 13 against which theflange 12 abuts to position theV bracket 69 properlyfwith respect to the head'. Within the bracket 69 Iis provided a sealing strip positioning strip 16 may maintain the sealing strip 14 effectively in the sealing position shown in.

Figure 4. Thepositioning strip- 16 is'forlmed with a cutaway portion 18 along the portion thereof adjacent an ink discharge nozzle 19 Figures 3 and 14) to be zdescribed in greater detail hereinafter. TheA endl of the head 49adjacent'the cylinder is formed with a boss against which the bracket 69 urges the sealing and positioning strips 14 and 16 when the locking strip 10 .has been moved to a locking position.

It will thus be seen that the bracket B9 may be readily removed from the head 49 when the spring lock strip 10 is moved-into a retracted position. In the normal position of the spring strip 10, however, as illustrated in lFigures' and 4, the bracket is maintained in anormal sealing position. The mechanism for actuating *the locking strip 10 comprises eccentrics 8| secured to the shafts 54. Links 82 are formed with apertures 63 which receive the eccentrics 8| and thus transmit reciprocating motion from the rotating shafts 54 to the links 82. At the other ends of links 82, apertured bosses 84 are provided, these bosses receiving stub shafts 85 which extend through a sealing plate 86 carried by the head 49, this plate being formedwith 4apertures 81 to receive the shafts 85. Above the sealing plate 86, the shafts 85 are vprovided with guides 88 which are received in formed with' slots 90 in which the shafts 85 are slidably received, bushings 9| being provided therein for this purpose. A reinforcing strip 92 is provided beneath the spring locking strip 10, nuts, 93 securing the foregoing elements in the assembled -position shown in Figure 4.

It will thus be seen that, when the eccentric locks 53are disengaged, the lock strip 10 will be retracted to permit the bracket 69 to be removed.

The foregoing, operations `occu-rsimultaneously inasmuch as'the mechanism by means of which each operation is'accomplished' is actuated bythe common-manually operated crank 6|. l Intermediate the ends of the head 49 ink channels and ducts; are provided to supply ink to the nozzle19. -Withinthe head Y49 is secured a mani- #(94. The head 49 is secured, as illustrated in Figure 14, to the-bottom plate l50 by the bolts 52 and the manifold member 94 is secured to the 'upper portion of the head 49 by means of bolts 95. The sealing plate 8 6 extends longitudinally of the head and lies between the manifold member 94 and the upper portion of 'y the head to serve as a means to seal the manifold member from the adjacent portions of the head to which the said member is secured. Bolts 96 additionally secure the manifoldmember to the head and, by extending through theA member,

also secure elbow connections 91 to the, manifold. member.

y19. In orderlthatxauziiform amount of ink mayf be supplied to .the nozzle over the entire length thereof, the manifold-member is formed with passages |03 whichv communicate with ducts |04,

Ducts |041infturn,communicate with ducts |05 which, inv turn,"v communicate with ducts |06. Duets |06 communicate with ducts |01 which in turn communicate with the nozzle 19, thus af-l fording an even distribution of ink to the portion of the nozzles supplied by such ducts. Obviously,

supplied with ink from a manifold |08, formed` in the elbow 91 (Figure 2). Each of the elbows 91 is formed with a flange 98 which is elongated and formed with a similar elbow, as shown in Figure 2`. A longitudinal' duct |09 is formed in the flange 98, this duct communicating through a passage ||0 with a manifold Passage |II, formed in the side wall 99'of the head 4,9'.(Fig urosv 2 and 14). A pipe connection ||2 with the manifold passage permits ink to bedelivered lo the said passage from a suitable circulating mechanism, not shown.

Within the side wall 9, and serving as a wall of the manifold passage is a plate ||3 upon ||0 are formed in plate ||3 to afford communication between the passages |09 and and the plaie ||3 is formed with a horizontal flange ||4 (Figure 14) within which the lower end of shaft -60 is journaled. In order that ink may be byis bored at |24 to receive guide rods |25.

I'he worm |34 is secured to a stub shaft |35 which.

' mounting heads I 38 (Figures 7 and 11) are seis secured to the valve H1 and journaled in the flangev I I4, the upper end thereof being provided with a pinion IIS, which engages a gear |20, se-

cured to the shaft-,60. In this fashion, Whenrthe l manually operated crank 6| Yis actuatedv to release the head 49 from its sealing position and `release the sealing bracket 69 from like position,

the valvey I I1 is opened to by-pass ink from the manifold passage II I to the ink housing.

Upon the side of the housingwopposite from the `inking head 49, a doctor supporting mechanism is provided of improved construction. This mechanism is preferably mounted upon the housing'side wall 22 which, for this purpose, is provided with an upwardly extending portion 2| having a horizontal flanged portion |22. The outer side of the wall I2| is formed with pairs of spaced guides |23 (Figure 7) each of which guide rods are formed with teeth |26 which are engaged byY pinions |21 carried -bya shaft |28 which is journaled in bosses |29 formed upon the respective guides |23. Intermediate the ends of the shaft |28 a boss |30 is formed upon the outer side of the wall 22. A housing I3| Vis secured to this boss by means of bolts |32, the housing receiving a worm wheel |33 which is secured to the shaft |28 and with which is engaged a worm |34.

is journaled ina boss |36 formed on the housing .|3I, the outer end of the shaft |36 being 'squared' at |31. Rotation of shaft |35 thus causes the guide rods I|25 to be moved in the guide ways |24. Y,

Upon the upper ends of the guide rods |25,

seal between the wall portion |43 and the said flange. In this fashion, the plate |4,| and wall V|43 preserve an effective seal between the ,sta-

' tionary portion of theink fountain and the movable portion at the doctor side thereof.

Upon the upper portion of the plate |4I, apertured lugs |44 are provided to receive a rod |45.

This,` rod serves as a mounting means for`slide brackets |46 (Figures '1 and 10), the brackets being formed'with apertured bosses |41 at one end thereof to receive the rod |45 and apertured bosses |48 at the other end thereof to be mounted upon the shaft |40'. VThe brackets I 46 serve as a mounting means for an apron |49 which is securedthereto by means of bolts |50. The apron ls provided with Aastub shaft |I upon which la roller |52 is journaled. 'I'his roller is received in a cam groove |53, formed in a collar |54 which is secured tothe shaft I4|).` Inasmuch as the bracket |46 is slidably mounted upon the rod |45 and shaft |40, rotation of the shaft |40 will cause the rapron |49 and-brackets I 46 vto be reciprocated through the groove and roller connection above described. v

The upper end of the apron |49 is provided with an elongated groove |55 within which a doctor holder |56 may be secured by means of clamps |51 and bolts |58 (Figure 14). 'I'he doctor holder is provided with a flexible doctor |59 which thus is .caused to reciprocate in accordance with the ThE motion of the apron 49. A sealing blade |60 is secured to the top of the plate I4| and exerts an upward pressure Lagainst the doctor |59 as illustrated in FigureslO, 11 and 14thus effectively sealing the doctor |59 to the plate I4I.

As above noted, theplate |4| is adapted to rock upon the shaft |40 and, iny order that itmay be maintained effectively in the normal position c shown in Figures 10, 11 and 14, a locking mechanism is provided as illustrated in Figures 7, 11 and 13. For this purpose, the mounting heads I 38 are drilled to receive lock pins I6| slidably therein. 'Ihe lock pinsv |'6I are formed with gear teeth |62 with which pinions |63 engage, pinions |63 being formed uponstub shafts |64 `which are journaled in the mounting heads |38. Manu-l ally operable cranks |65 are securedto the outer ends -of the shafts |64 in order that the latter may be turned to move the lock pins I |5I.v vEars' |66 are formed upon bosses I 42 of the plate |4| adjacent the end flanges |68. These lears are formed with bores to receive the lock pins |6I when the plate |4I is in its operative position and when the cranks |65 are operated. In thisl fashion, when the lock pins I'6I are in the position illustrated in Figure 13, the apron |49 and plate |4| are locked in the position illustrated in the drawings, When the lockpins |6| are rcleased, these elements may be swung upwardly into ank open position.

In order that the doctor may be maintained effectively in wiping engagement with a printing cylinder, a pressure blade |69 is provided, this pressure blade being mounted'upon a cover |10 which is pivotally mounted on the apron |49 by means of links |1| which are pivoted to the apron at I12and to the cover at |13. The links |1| areformed with flat bearing surfaces |14 which are adapted to engage the top of apron |49 in the `normal position of the mechanism as illustrated in Figure 10. The links are positioned against endwise displacement by flanges |49a formed on plate |49. The pressure blade I 69, carried by the cover |10 is urged into the position shown in Figures 10, 11 and 14 by means of eccentric cams |15 which are mounted upon a shaftk I 16, journaled in brackets'l11, carried by the cover |10.

The cams are adapted to engage rollers |18 which are mounted upon brackets |19, carried'by the apron I 49, and rotation of the shaft I 16 is effected by means of a worm wheel |80 (Figure 14), the Worm wheel beingfsplined or otherwise secured to the shaft |16 and engaged by a Worm I8I, formed upon av stub shaft |82 which is journaled in the cover |10. The stub shaft |82 extends` downwardly from the cover and receives a knurled knob |83 in order that the vstub shaft may be rotated to rotate the shaft |16. In this fashion when the cover has been swung into such position that the contact member |14 engages Ythe apron |49', the knurled knob |83 `is turned until the eccntrics |15 force the cover effectively into the closed position shown in Figure 10, at which time the pressure blade |69'engages the doctorK |59 to force thesame into the wiping position illustrated, at the same time causing the sealiing blade to be deflected, asillustrated in Figures 10, v11'and 14.

In Figure 10 the dot and dash lines illustrate the position of the'cover when it has been swung back away Vfrom the apron to permit access to the latter. It will be seen, from Figure12, that the hinge connection |13 includes the Ylock pin |10a which also serves as the hinge element by means of which the cover |10 is hingedly Acornv vided with hand wheels |90.

nected to the link |1|. Lock pin |10a of each hinge connection is formed with teeth |10b which are engaged by teeth |1c formed on a shaft |10d which is actuated by a manually operated crank arm |106.

In order that' the ends of .the housing may be sealed effectively, end seals are provided thereon, such end seals comprising arcuate plates |84 upon which gear sectors |85 are provided. This structure is shown in Figures 8, 9 and 17. Housing end walls |85 are provided with apertures |81 in which shafts |88 are journaled, the shafts being formed, at their inner ends, with gear teeth |89 for engaging the respective gear sectors 85, the outer endsof the shafts |88 being pro- Each hand wheel is provided with a friction lock comprising Va spring pressed detent |90a riding in a groove |88a formed in the shaft |88. The arcuate sealing plate |84 is mounted upon an arcuate bracket |9|, the outer periphery of which conforms to the curvature of the printing cylinder, the bracket being formed with a flanged portion |92 and a rib |93 which liesbetween the sealing strip 18 and the doctor |59. The plate |84 is formed with ja groove |94. within which the ribk |93 is received, and is further formed with a parallel flanged portionv |95 between which and the plate |84, the flange |92 is received. In this fashion, the plate |84 is mounted for sliding movement about the axis of a printing cylinder |96 which is illustrated in Figure 9, 'as well as in Figures 3, 4, 10, 11 and 14. A exiblestrip |84a. is riveted to the under side of each plate |84. This strip (Figure 17) lies under the overhanging portion of plate |84 and projects circumferentially thereunder the sealing strip 14 and an effective seal* between the strip, housing end wall and cylinder is thus preserved in view of the fact that the strip 14 does not move during operation of the press. Inasmucli as the doctor |59 reciprocates, the sealing plate |84 cannot lie beneath the doctor because of the objectionable wearY resulting therefrom. In accordance with the present invention, the hand wheel |90 affords a means by which the plate |84 may be advanced against the doctor |59 into abutting sealing engagement therewith (see Figures 8 and 17) when the latter has been moved to its wiping position, thus preserving an effective seal between the housing end wall |86, cylinder |96, and doctor |59.

As illustrated in Figures 7 and 16, the shaft |16 is provided with avclamp 200 having an arcu ate indicator dial 20| upon which suitable indicia is inscribed. This dial is positioned within a curved portion 202 of the cover |10. An aperture 203 is provided in such curved portion in order that the indicia on the dial 20| may be viewed therethrough.

A sleeve 204 is provided on the shaft |16, and secured to the bracket |11 which is fastened to cover |10, the shaft |16 being journaled in sleeve 204. clamped, the bracket having a longitudinally extending arm 206 in which is received an arcuate Upon the sleeve 204 a bracket 205 isV the arm 206 and slot 201 serve as a device for v limiting the pressure to which the doctoris subjected by means of the manually operated knob |83.

By means of the pressure indicator construction above described, a permanent initial, setting for a given size printing cylinderis provided, such initial setting serving to enable the position of the wiping mechanism to be adjusted properly. In operation, a doctor knife |59 having a new wiping edge is mounted in the machine and the indicator 200 is moved until the first or zero number appears through the aperture 203 on the cover |10. The wall plate |4| is next adjusted by means of the wrench end "|31 until a clean wipe is obtained on the printing surface |96. During operation and as the edge of the doctor wears, the operator turns the knob |83 to compensate for such wear until the indicator reaches the limit of its reading and until the arm 205 reaches the limit of slot 201. At this stage, the operator cannot apply more pressure to the vdoctor because of the lock afforded by the arm and slot of the indicator. At this point the indicator shows the operator that the wiping edge of the doctor has been worn to its tolerable maximum and the reconditioning of the edge is now necessary. Having replaced the worn doctor with a reconditioned or new one, a clean wipe will be obtained when the indicator is brought again to zero position, without having to readjust the wiping mechanism. In this fashion the initial setting may be considered as a permanent one as long as the diameter of the printing cylinder remains the same. Furthermore, by means of the above indicator, the cover |l may be moved and returned again into its normal operating position without affecting the pressure adjustment of the pressure blade |69. This is done simply by restoring the indicator dial to cover was moved from its normal operating position. The zero position of the indicator may be changed by movement of the dial upon the shaft |16 and the limit position afforded by the slot 201 may be changed by changing the position of the bracket carrying the arm 206. l

It will thus be seen that the construction described herein provides an improved fountain wherein the operating parts are enclosed and maintained away from the ink and ink vapors within the housing, the construction also being Ythe same number which existed at the time the ate plate |4| by means of the shaft |40 and |45.

In this fashion, if the sealing blade |60 fails to effectively seal the doctor along the entire length thereof, and ink escapes at such faulty seal, it will flow down the upper surface of the arcuate plate |4| and not contact the reciprocating and control portions of the doctor mechanism.

Moreover, inasmuch as the inking head as well 6 y arrastre c, sealing surface adapted to cooperate with thev o sealingzsirface on the side wall in the adjusted '.lpo'sitions thereof, and means to lock the wall plate `ina normal'position in whichthe sealing surfaces jare in sealing engagement. s

4; A wiping mechanism for a rotaryintaglio printing machine comprising a pivoted platform Y above character, the lend seal vrupon which the wipingmeans is mounted, a rej- Y one direction to enable the cylinder' to be readily' ciprocable slide for' the wiping means slidably; -1'0 removed from the'fountaiiilthtsV preventing inmounted on the platform, a drive shaft and con- 10` terference withl the rem arand replacement `of nection forreciprocating the slide, and means to cylinders. Y j guide the slide by the shaft and pivot the'plat- It will be furthe observed that the doctor and form thereon." v 1 reciprocating mech nfsin therefor is mounted dir c 5. lA wiping mechanismy for av rotary vintaglio reyctly upon a stapfonary portion of,y the fountain, printing machine comprising a pivoted platform 15 ythus affordingarigid mounting for such strucupon which the wiping means ismounted, a pivot ture. Figures' 10and 1l illustrate such construe-K. shaft for the platform, journal supports for Y tion.v` f l y" v the lshaft independentofthe platform, and lock- ,n From theforegoing vit will beseen that an iming means between the platform and journals to v proved fountain structure has been provided by lock the platform iny a predetermined operative 2,0`

'to'removal of they/head.i s ,5, o

i Byy p ro'vi'ding the' end 's eal'me" means ofY which amore effective'seal may be atposition of the wiping mechanism. f. y Y y tained,lat the same time providing a more readily f Y r6. Vwiping-mechanism for an intaglio printing if Q adjustable inking head, 'as wellas'a doctor oper-y fmachine comprising al stationary side wall,V` a

- ating. and yadjusting mechanism] which` may be Dlatformupon which wiping mechanism is adapt- Y, v 25 more eifectively operated 'and controlled. The ed to be mounted, kvertical guide members slidably V25,A interlocking and coacting mechanism in the ink-v 'mounted on .the side. wall, 'journal brackets on ingA head and the doctor mounting provides not' the guide members, and a f ulcrumishaft for the Y only for simplified operation,'but vinsures proper platform journaled in the brackets, said guide Vinteraction of the parts 'and facilitates more effecf members Vserving as means to adjust the operattive Ycontrol'of the fountain. ingposition of the wipingfmeans to accommo- 30 Y While the invention has `been described with ,datev printing cylinders ofvarying diameters.

specific reference to the constructionshown in 1 `'7. Wiping mechanism for -an intaglio printing. the accompanying drawings, it is not to limmachine comprising a stationary side wall, a platv ited, save as deflried'inthe appended claims. formk upon whichV wiping mechanism is adaptedv IcIaim: Y Y Ato beimounted, vertical guide members slidablyss o l. Incombination with an ink housing for a mounted on theA side wall, av reciprocable slide' rotaryintaglio printingmachine4 having a wipon the platform upon which the wiping mecha-1Y ing means and a stationary side wall, a housing nisrn ismounted, journal brackets on the guide wall plate, means to mount the wiping means on members, a drive shaft rotatably journaledin 40 the wall plate, means to mount the wall plate pivthe brackets, a driving connection between thev 40 otally with respect to the side wall, means vto vary shaft yand, slide, fandmeans to guide the slide on Y vkthe position verticallyrelative to the side wall of the shaft 'and mount the vplatform pivotally the pivot mounting of the wallplate, and cooperthereon. .Y f Y y ating longitudinally extending portions on the 85A wiping mechanismvfor a rotary intaglio s wall plate and side Awallforming sealing surfaces printing machine comprising. a stationary side 45 adapted'to maintain a sealV therebetween vinthe wall, an adjustable pivotally mounted platform ,various adjusted positions of the movable-wall" for thewip'ing means, guide membersadjustablyY 'p1ate, o l v `mounted on the side wa1l,journal brackets car- Y 2. VIn,ocombir'lation with an inkhousing for a l' riedby the guide members, a'fulcrum shaft for rotary intaglio printing machine having'awiping the platform journaled in the brackets, and 50v meansanda stationary sidewall, a housingfyvallf lockingimeans to lock the wiping means in a plate, means to mount the wi'plngmeans/ on'the predeterminedposition. g I o wally plate,`means to mount thewall platepivotfi 9. A wiping. mechanism for a rotary intaglio ally with respect'to the side wall, means to vary printing' machine v*comprising a stationary side,- v

,65 the positionvertically relative to Vthe/side wall of Wall.. an adjustable pivotally mounted platform 4 the pivot mounting lof'the wall plate, a longitu-` for rthe wiping means, guide members adjustably dinally extending iportion on theinner side of the mounted on the side wall, journal bracketsk carside Vwall Yhaving a, sealing surface thereon, and riedby the guide members, a fulcrum shaft V'for a flange, on the'wall plate extending downwardly Vthe platform journaledlin the brackets, and lockfrom the pivot-mounting thereof and having a ingfmeans between the journals and platformen sealing surface Vadapted to cooperate' with the to `lock the vwiping means in a predetermined sealingsurfacefon the side wall inthe Vadjusted f position. i A l positions thereof.'y v A 10. A wiping mechanism fora rotary intagliol Y 3. In combination with an ink housing fora .printing machine comprising a pivotallymounted rotary lintaglio printing machine having .a wiping .platform for the wipingmeans, a pivot'shaftfor 35 1 means and a stationary side wall, a housing wall Y the platform, journal brackets Vsupporting the plate, means to mount the wiping Vmeans'pn thev shaft, a .lock plunger ,slidably .mounted -in ai; wall plate, means to vmount the wall plate pivbracket, theplatform being formed witha rcess- Otally with respect to the Side wall. means to vary toA receive the plunger, and means to actuate the thepositionvvertically relative to theside wall of plungeruj` Y the pivot mounting of thewall plate, a longitul11.V A-wipingmechanism fora rotary intaglio dinally Vextending portion on Vthe inner side of o printingl machine comprising a stationary sidey the side wall having a sealing surface thereon, a wallffanyadjustable vmounting platform for the flange on the wall plate extending downwardly'.` wiping meanaaplurality of vertical guidefmemu from the pivot lmounting thereof and having au bers slidably mounted 4on the'side wall, brackets 75 and a pressure indicator to indicate the position carried by the guides, supporting means for the platform carried by the brackets, and common means for engaging the guide members for simultaneous movement thereof, to locate the wiping means 'in operative position for various cylinder diameters.

12. A wiping mechanism for a rotary intaglio printing vmachine comprising a mounting platform for wiping means, guide supports on the platform, a reciprocable slide'carrying the wiping means and slidably mounted on the guides, and means to elevate the guides above the surface of the platform to prevent ink contamination thereof.

13. A wiping mechanism for a rotary intaglio printing machine comprising a mounting vplatform for wiping means, guide supports on the platform, a pair of brackets slidably mounted on the guides, an apron adapted'to carry a wiping blade, and means to removably secure the apron to the brackets to facilitate access to the mounting platform.

14. A wiping mechanism for a rotary intaglio printing machine comprising a mounting platform for wiping means, guide supports on the platform, a reciprocable apron carrying a wiping blade and slidably mounted on .the guides, a stud on the apron, and a cam carried by one of the guide members and having a driving engagement with the stud to eiect reciprocation of the wiping blade.

15. A wiping mechanism for a rotary intaglio printing machine comprising a mounting platform for a wiping mechanism, guide members mounted on the platform, slide brackets mounted on the guides, an apron upon which a wiping blade is adapted to be mounted, means to removably fasten the apron to they brackets, a stud on the apron, and a cam carried by one of the guide members in ldriving engagement with the stud to reciprocate the wiping blade.

` 16. A wiping mechanism for a rotary intaglio printing machine comprising a mounting platform for a wiping mechanism, guide members mounted on the platform, slide brackets mounted on the guide members, an apron upon which a wiping blade is adapted to be mounted, means to removably fasten the apron to the brackets, a studfori` the apron', a camcarried by one of the guide members. in driving engagement with the vstud.to1-reciprocatethe wiping blade, and' means Q mountthefguidefmembers,brackets, apron, sg'uid" ma position,which-isspaced from-f ytheSurface 'f-t'he' mounting platform.

a pressure member `adapted to urge the wiping blade into operative position, `a c am shaft journaled in said pressure apron, cams mounted on said shaft to engage a surface carried by the slide,

and means to rotate the shaftgto varythe pressure of the pressure member on the wiping blade.

18. A wiping "mechanism for a rotary intaglio naled in said pressure apmn, cams mounted'on said shaft to engage a surface carried by thev slide, means to rotate the shaftto vary the pressure of the pressure member on the wiping blade,

printing rriaehirie comprising a reciprocable sli'de carrying anfapron and a wiping blade, a vpressure apron pivotally mounted on'the; slide and having .l

of the pressure member. 19. A wiping mechanism for a rotary intaglio printing machine comprising a reciprocable slide carrying a wiping blade, a pressure apron cover pivotally mounted on the slide and having a. pressure member adapted to urge the wiping blade into operative position, a cam shaft journaled in said apron, cams mounted on said shaft to engage the slide, means to rotate the shaft to vary the pressure of the pressure member on the wiping blade, a pressure indicator to indicate the position of the pressure member, and means to limit the movement of the pressure member.

20. A wiping mechanism for a rotary intaglio printing machine comprising a reciprocable slide carrying a .wiping blade, a pressure apron cover pivotally mounted on the slide and having a pressure member adapted to `urge the wiping blade into operative position,`a cam shaft journaled in said apron, cams mounted on said `shaft to engage the slide, means to rotatethe shaft tov vary the pressure vof the pressure member on the wiping blade, a pressure indicator to indicate the position of the pressure member, and adjustable means to limit the vmovement of the pressure member.

r 21. A wiping mechanism for a rotary intaglio printing machine comprising a reciprocable slide carrying a wiping blade, a pair of links pivotally mounted on said slide, a pressure apron cover hingedly mounted by the links, and lockingfmeans to prevent movement of the links with respect to the slide. v

22. A wiping mechanism for a-rotary intaglio printing machine comprising a reciprocable slide carrying an apron and a wiping blade, a pair of links pivotally mounted on said slide, a pressureapron hingedly mounted by the links, and locking means lto prevent movement of the links with respect to the slide, said locking means comprising lock plungers constituting fulcrum shafts for the apron in the links.

23. A wiping mechanism for a rotary intaglio printing vmachine comprising a reciprocable slide carrying an apron and a wiping blade, a pair of links pivotally mounted on said slide, a pressure apron hingedly mounted by the links, locking means to prevent movement of the links with respect to the slide, said locking means comprising lock plungers constituting fulcrum shafts for the pressure apron in the links, and means on the ex- 'terior of the pressure apron for operating the locking means.

v2 1 Airwiping mechanism for a rotary intaglio printing Vmachine comprising a reciprocable slide carrying a wiping blade, an apron cover carrying apressure member for urging the wiping blade' into operative wiping position, a double fulcrum' mechanism for mounting the cover on the slide, locking means to prevent pivotal movement about one of'the fulcrums, adjusting means to control the pivotal movement of the pressurel ed to form an adjustable member in sealing conbers out Aof tiguity with the hinged plate, cooperating guide members on the hinged wall portion and movable wail plate and means to mount said guide memcontact .viihthe interior of the lions-- ing. l

26. Sealing mechanism for a rotary intaglio printing'machinehaving an enclosed ink housingA chamberand'ado'ctor comprising adjustable end sealing members to sealthe space between the end wallsV of the ink housing and the ends of the Cylinder, the ends ofsaid rmembers having an abutting .sealing engagement with rthe doctor at thewiping edge thereof.

e 27.*Sealing mechanism forV a rotary intaglio printing machine having an enclosed ink housing chamber and a doctor comprising end sealing `members to seal the space betweenthe end Wallsr Vof the inkhousing and the ends ofthe cylinder,

y'said members 'includingL a stationary member mountedon the end wall ofthe housing, a movfable member; cooperating with theustationary member, and Vmeans to'adjust the positionof the "movable memberwith respect to the stationary vmemben the movable member being adapted'to lie in abutting sealing'engagement with the wip Ving edge of the'doctor.

28. Sealing mechanism for a rotary intaglio printing machinehaving an Yenclosed ink hous- Y ing chamber and adoctor comprising end sealing of the ink housing and the ends ofthe cylinder,

members to seal the space between the end walls said members including aj stationary member VVVmounted on the Vend Wall of the housing, an arcuate guide member on the stationaryV member, and

a movable'member on the arcuatemember and in sealing Yrelation therewith, themovable member being Yadapted toV lie in abutting sealing engagement with the wipingedge of the doctor.V

29. SrealingV mechanism ior a rotary intaglio printing machine having an Venclosed ink housing chamber comprising a longitudinalsealing strip on the inking side of the Vmachine, ardoctor onV the wiping side, and end sealing means for sealing the space betweenthe end walls of the housing and the ends of the printing cylinder, said last named means having an overlapping sealing enf gagement with thesealing strip and the ends of v said end sealing means having an abutting sealing engagement with the doctor.

30. Means for sealing the' end of an ink housing forrotary Yintaglioprinting machines havingl v rotatable printing cylinders-comprising a housing end wall, anY en'd sealing member adapted `to provide a seal between the housing end'wall and the adjacent end ofthe cylinder, and means to position the sealing member adjustably.

v31. Means for sealing the end of an ink housing for rotary intaglio printing machines having rotatable printing cylinders comprising a housing end wall, an 'end sealing member adapted to provide a seal vbetween' thc housing end wall andthe adjacent end of the cylinden'means to mount the Ysealing member slidably, and means to lnove the ,sealing member.

32. Means for sealing the end oi an ink housing for rotary intaglio printing machines having rotatable printing cylinders comprising a housing end wall, an arcuate-end sealing member adapted to .provide a seal between the housing end. wallV and the adjacent end of the cylinder, and means to mountV the sealing vmember for arcuate sliding motion.

33. Means for sealing the end of an ink housing for rotary intaglio printing machines having Y rotatable printing Vcylinders comprising a housing end wall, an arcuate end sealing member adapt- 'Yed to provide a seal between the housing end wall and the adjacent end of thecylinder, means to mount the scaling member for arcuate sliding motion, and "means tomove the sealing member in an arcuate path adjustably.

34. Means for sealing the end of an ink housing for rotary intaglio printing machines having rotatable printing cylinders comprisinga housing end Wall, an arcuate end sealing Ymember 'adapted to provide a seal betweenl the housing end vWall and theY adjacentV end of the cylinder, anarcuate bracket on the end wallto mount the sealingl memberv slidably, and means to move theV sealing member on thebracket.

g 35. In combinationA with an ink housing fora rotary intaglio printing'machine having an end wall, a rotatable cylinder in the housing, la sealing strip at one side of the housingin' sealingV contiguity with the cylinder, housingY andfend' wall, a reciprocable doctor at the other side ofV Vthe housing engaging the cylinder, anfendgsealing member on the? housing end wall-and in sealing contiguity with the end wall, Vsealing strip and cylinder, and adjustable means to position thesealing member in sealing contiguity with fthe Y doctor.

36. In combination with an ink housing for a v rotary intaglio printing machine having an end Wall, a rotatable cylinder in the housing, a sealing strip at one 'side ofY the housing in sealing contiguity withY the cylinder, housing, and end, Y

wall, a reciprocable doctor at the other sideV of. fthe housing engaging the cylinder, .av relatively xed sealing blade under the doctor and in seal-i ing contiguity with the end wall and theV doctor,

an end sealing member onV the housing end wall and in sealing contiguity with the end Wall, seal-V ing strip and cylinder, and adjustable means to with the sealing blade. v Y

-ADOLPH WEISS.

.555 position'the sealing member in sealing contiguity Y CERTIFICATE 0F CORRECTION. Patent No. 2,115,576. April 26, 1958.

ADCLPH m ss.

It is hereby Certified thatl error appears in the printed specification of the abovenumbered patent-requiring vcorfr'ectonas follows: Page 5, second column', line 65, for the reference numeral "9" read 99; page?, second Column, line )45, Clam`22, before "apron"- insert 'the word pressure; and thatthe sal-dy Letters Patent should be read with these Correctonsthere :Ln that the same may Conform to' the record of the case in the Patent Office.

signed and sealed this 51st day army, A. D. 1958.

Henry Van Arsdale, (Seal) `Acting Commissioner of Patents.

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