US3155037A - Apparatus for applying fluid to a web such as intaglio printing machines - Google Patents

Description

H. HASKIN, JR 3,155,037 FOR APPLYING FLUID TO A WEB SUCH INTAGLIO PRINTING MACHINES 3 Sheets-Sheet 1 Nov. 3, 1964 APPARATUS As Filed Jan. 8, 1962 INVENTOR.

LAWRENCE H. HASK|N,JR.

ATTORNEYS.

Nov. 3, 1964 H. HASKIN, JR

APPARATUS FOR APPLYING FLUID TO A WEB SUCH AS INTAGLIO PRINTING MACHINES 3 Sheets-Sheet 2 Filed Jan. 8, 1962 S 3/ mm 8 IN V EN TOR;

A TTORN E Y5.

LAWRENCE H. HASK|N,JR.

Nov. 3, 1964 H. HASKIN, JR 3,155,037

' APPARATUS FOR APPLYING FLUID TO A WEB SUCH AS INTAGLIO PRINTING MACHINES Filed Jan. 8, 1962 3- Sheets-Sheet. 3

INVENTOR. LAWRENCE H. HASKIN,JR.

% ATToRNEYs.

United States Patent 3,155,037 APPARATUS FQR APPLYING FLUTE) TO A WEB SUCH AS INTAGLEO PRINTING MACHINES Lawrence Ii. Hashim, .hu, Richmond, Va, assignor to The Inta-Roto Machine Company, Inc., Richmond, Va., a

corporation of Virginia Filed Jan. 8, 1962, Ser. No. 164,764 16 Claims. (Cl. 101364) This invention relates to fountain mechanism for apparatus for applying fluid to a web such as intaglio printing presses, laminating machines and the like.

An object of the invention is to provide novel and effective means for substantially enclosing or shielding the rotary cylinder of a machine for applying fluid to a web in a manner to prevent the escape of fluid by splashing or by being slung from the cylinder under the influence of centrifugal force and to also prevent the fluid from migrating along the shaft ends of the cylinder and entering the bearing cartridges within which the shaft ends are journaled. The invention is described and claimed hereinafter in connection with an intaglio printing press, but is equally adaptable for other apparatus for applying fluid to a web such .as for applying glue in a laminating machine.

Another important object of the invention is to provide shielding or enclosing means for a printing cylinder to be mounted upon the underlying ink fountain in a removable and adjustable manner and thereby usable with printing cylinders of various diameters.

Another object is to provide novel and compact shield or sealing means for the shaft ends of the printing cylinder which permits both axial and radial adjustment of the cylinder without damaging the effectiveness of the sealing means.

Still another object is toprovde movable bearing cartridges for the shaft ends of the printing cylinder to allow rolling of the entire cylinder and the underlying ink fountain upon a trackway to facilitate servicing the cylinder or interchanging the same with another printing cylinder of different diameter.

Another object is to provide novel means integrated with the shaft end bearing cartridges for adjusting the printing cylinder axially in its bearings.

A further object is to provide enclosing or shielding means for the printing cylinder adapted for use with a pressure type ink applicator and doctor blade unit.

Still further objects are to provide means of the abovementioned character which embody simplicity of design and construction, eliiciency of operation, ease of adjustment and maintenance and economy of manufacture.

The novel features that are considered characteristic of the invention are set forth with particularity in the appended claims. The invention itself, however, both as to its organization and its method of operation, together with additional objects and advantages thereof, will best be understood from the following description of a specific embodiment when read in connection with the accompanying drawings, wherein like reference characters indicate like parts throughoutthe several figures and in which:

FIGURE 1 is a fragmentary side elevation of a printing press having the inking mechanism according to the invention applied thereto;

FIGURE 2 is an enlarged fragmentary transverse vertical section taken on line 22 of FIGURE 1;

FIGURE 3 is a fragmentary longitudinal vertical section taken on line 33 of FIGURE 2;

FIGURE 4 is a similar section taken on line t tof FIGURE 2;

FIGURE 5 is a transverse vertical section taken on line 55 of FIGURE 3, parts omitted;

ice

FIGURE 6 is a partially exploded perspective view of an ink fountain or'pan having elements of the invention associated therewith;

FIGURE 7 is an enlarged fragmentary transverse vertical section taken on line 77 of FIGURE 1, and

FIGURE 8 is a fragmentary longitudinal vertical section taken on line 8-8 of FIGURE 7.

Referring to the drawings in detail, the numeral 10 designates a horizontal bed forming part of the printing machine frame, and which frame also includes spaced upstanding vertical frame sides 11 and 12, as shown. Corresponding vertical edges of the frame sides 11 and 12 have notches 13 formed therein above the horizontal bed 10, FIGURES 1 and 7, and semi-circular recesses 14 are formed in the backs of the notches 13 to provide pockets for cylindrical bearing cartridges 15 to be described in detail. The lower sides of the notches 13 cons-titute horizontal rollerways 16 for the bearing cartridges 15 and leading from the pockets 14, FIGURE 7. The pockets 14 and rollerways 16 are provided near the transverse centersof the frame sides 11 and 12 with guide grooves 17 receiving annular radial ribs 18 on the peripheries of the rollable bearing cartridges 15.

A printing cylinder 19 is disposed between the frame sides 11 and 12 with its horizontal axis of rotation transversely thereof, and the printing cylinder has reduced axial shaft extensions 20 integral therewith at its opposite ends and further reduced shaft ends 21 are carried by the shaft extensions '29, coaxially therewith, FIGURE 8. The shaft ends 21 are mounted within rotatable sleeves 22 and keyed thereto for rotation therewith by keys 23 rigid with the shaft ends. The shaft ends 21 are adapted to be adjusted axially within the sleeves 22, by means to be described, and the keys 23 are shiftable longitudinally in the keyways 24 of sleeves 22. The sleeves 22 are rotatably mounted upon ball bearings 25 held within the cylindrical shells 26 which are the shells of the mentioned cartridges 15 having the ribs 18 thereon. The description thus far covers both of the rollable bearing cartridges 15 shown in FIGURE 1. The cartridge 15 shown at the right hand side of FIGURE 1 is provided on the outer end of its shell 26 with a cover plate 27 rigidly secured thereto. The adjacent shaft end 21 has a gear 28 rigidly secured thereto, to be driven by conventional drive gearing, not shown.

The cartridge 15 at the left hand side of FIGURE 1 and shown in detail at FIGURE 8 has an adapter sleeve 29 rigidly secured to the outer end of the shell 26 by screws 30. The adapter sleeve 29 is internally screw threaded for the reception of a screw-threaded adjusting ring 31 having an adjusting hand wheel 32 rigidly secured to its outer end by screws '33. The adjusting ring 31 is rotatable upon a ballbearing 34 contained within the outer end of the ring 31 and mounted upon a reduced extremity 35 of the adjacent shaft end-21 and held'thereon by an end cap 36 as shown in FIG: URE 8. I

As should now be apparent, the shaft ends 21 of the cylinder 19 are freely rotatable with the sleeves 22, in the ball bearings 25 of the bearing cartridges 15. The

rollable cartridges 15 are normally fixedly secured within i the pockets 14 by clamp shoes 37 having arcuate faces.

38 engaging the peripheries of the shells 26 and resting upon the rollerways 16. The shoes 37 are urged into snug engagement with the cartridges 15 :by coacting wedge elements 39 mounted upon adjusting screws 40 engaging within screw-threaded openings in the T0116? turning the adjusting ring 31. When the ring 31 is thus turned; it moves axially within the adapter sleeve 29 and shifts the adjacent shaft end 21 axially in either direction to effect the axial adjustment of the cylinder 19. In practice, the cylinder 19- may have a total axial movement of-about flsof an inch.

Underlying the cylinder 19 and shaft extensions 26) is an inktrough or pan 41 having a generally U-shaped body portion including upstanding relatively thin side walls 42; asloping bottom wall 43 and relatively thick end walls 44, FIGURE 6. The U-shaped trough 41 extends longitudinally of the cylinder 19, FIGURE 1, and the heavy end walls 44 are disposed under the shaft extensions 2d near the outer ends thereof. The end walls 44 have-arcuate recesses 4-5 in their top edges and near the transverse center of the trough to accommodate the shaft extensions 20, normally slightly spaced concentric relation thereto while the bearing cartridges are pocketed as shown in FIGURE 7. The top of the pan 41 is open and lies approximately at the elevation of the longitudinal axis of the cylinder 19. The pan 41 has a drain fitting46 on one side thereof, FIGURE 2, at the lower end of the sloping bottom wall 33.

The end walls 44' of the trough 41 have rollers 47 journaled thereon near the four corners of the trough engaging horizontal tracks 48, mounted upon the bed 10 near and inwardly of the frame sides 11 and 12; FIGURE 1. The trough 41 is rollingly supported by the rollers 47. Fixed abutment elements 49 on the bed 10- near one side thereof are adapted to engage one pair of rollers- 47, FIGURE 2, to limit movement of the trough 4 1" in-one direction. Fixed brackets 56 near the opposite side of the bed it have keepers 51 pivoted thereto and engageable with the adjacent vertical edges of the rough 'end- Walls 44-to 'releasably secure the trough against movement on the tracks 43 in the opposite direction. When the keepers 51 are in the active positions shown in the drawings, the trough 41 is held stationary on the bed 19 between the keepers and abutment elements 49. Whenthe keepers 51 are swung upwardly to release the end walls 44', the through 41 may roll freely upon the tracks 48 away from the abutments 49, as will be further described.

Within the trough 42., FIGURES 2 and 3, and between the sloping bottom wall 43 and the lower side of the cylinder 19 and relatively close to the latter is a tray 52, carried by horizontal longitudinal rods 53 havingthein ends connected with vertical toothed suspension arms 54 which lieclose to and inwardly of the end walls'd. The vertically spaced teeth 55 of the arms 54- are selectively engageablewith horizontal suspension pins 56, anchored withinopenings in the end walls 44 nearthe tops thereof and near and inwardly of the trough side M11942, By this means, the tray 52 is rendered vertically adjustable Within the trough 41 and relative to the bottom of the cylinder 19.. The purpose of' the tray 52 is to accumulate some ink at the bottom ofthe cylinder 1910 maintain the latter'ivet during operation. The excess inkma'y drain freely from openings 57 at the ehds of the tray 52 and pass onto the inclined bottom wall 43- to drain from the trough 41 through the fitting enclosure orhousing for the upper portion of the I cylinder 19is provided and this housing also constitutes a cover for-the trough-41. More particularly, this housing meaiis comprises a pair of generally rectangular vertical plates 58 of relatively small height engaging in wardly of the, end walls 4'4 and spanning the trough 4-3 transversely between its side walls 42,'FIGURE 6. The

plates 58,preferably contact the inner faces ofthe end walls dd'to form substantially a seal. therewith. Clips 59 and 60 on the outer faces of the plates 58 engage removably over the top edges of the walls ldon opposite sides of the recesses 45 to releasably support the plates 58 on the ends of the trough 41.

feature is employed;

Directly above the arcuate recesses 45, the plates 53 have companion arcuate openings formed therethrough for the reception of approximately semi-circular downwardly opening shields 61, which are securely anchored Within the recesses of the plates by any suitable means and project axially inwardly thereof in close overlying and surrounding relation to the tops of shaft extensions 2% to shield the latter from contact with the ink. At their inner ends, the arcuate shields 61 have upstanding radial flanges 62 integral therewith and extending entirely thereabout circumferentially. These flanges are spaced axially inwardly of the plates 58 and project radially of the shaft extensions 20 in assembly. The lower extremities 63 of the flanges 62 are inclined toward the vertical end walls d tto drain all of the ink falling upon the shields 61 downwardly and toward the endwalls 44;

Axiaily inwardly of the shields 61, in coacting relation therewith and mounted upon the shaft extensions 20 adjustably, are two-part outwardly opening cylindrical cuplike shields 64 including semi-circular sections 65 having semi-circular hub portions 66 snugly embracing shaft extensions 26 and secured thereto by bolt means 67. The shields 64 have inner annular radial walls 68 rendering them closed at their inner ends, as shown. The shields 6% receive within them telescopically the inner portions of the coacting shields 61 and the radial flanges 62 thereof in spaced concentric relation to form a labyrinth seal or shield structure for the shaft extensions 20 to exclude the ink from contact therewith. That is to say, the interfitting relation of the rotary cup-like shields 64-. on the shaft extensional) form with the stationary shields 61 on the plates 53 a tortuous passage through which the ink cannot pass to reach the shaft extensions 2t}. Therefore, no ink can migrate along the shaft extensions 20 toward the shaft ends 21' and bearing cartridges 15 to adversely effect the latter. Theink is abrasive and corrosive in character and it is very important that the ink not be allowed to migrate toward the bearing cartridges l5 and damage the same. When the ink falls upon the exterior cup-like shields 64,

it will drain therefrom into the trough 41. Some of the ink may drain onto the arcuate shields 61. during the operation of the mechanism, and this ink will also drain downwardly into the trough 41 and will he directed by the inclined flange extremities 63 toward the trough end walls 44-, so as not to accumulate in the interior of the cuplike shields 64, thus further assuring that no ink comes into contact with the shaft extensions 26). The shields 64 may be adjustedv on the shaft extensions 2h so that the radial flanges 62 are at approximately the axial centers of the shields 64. The interfitting relationship'of the shields 61 a and 64 is such that the same continue to be effective in' all axially adjusted positions of the cylinder l9'caus'ed by turning of the hand wheel 32. Although not shown on the drawings, the shaft extensions 26 may also be radially adjustable in some instances,and the interfitting relation shipof the shields 61 and 64 also allows the required minute-radial adjustment of the shaft extensions where this Returning. to the description of the enclosure or housing means for the upper portion of the cylinder. 19, the same further comprises a downwardly open rectangular box-like body portion 69 including vertical':end walls 76] which engage the inner faces of the plates 58 and extend considerably above the same. The end walls 70 extend approximately to the lower edges of the plates 58. and inwardly of the. trough end walls 44 and havelarge down wardly open vertical slots 71 formed therethrough to re ceive thearcua-te shields 61 adjustably. The plates 58 have vertical adjustment slots 72 near opposite ends thereof receiving bolt means 73 connected with the end Walls 70 so that the latter are vertically adjustable relative to the plates 58. This arrangement allows thehousing body portion 6'9 to be adjusted vertically so that it may be emtical side wall 74 integral therewith and this side wall engages inwardly of the adjacent trough side wall 42 in assembly. The body portion 69 is open at the side opposite the side wall 74 but has horizontal top wall portions or flanges 75 projecting inwardly of the end walls 70 and integral therewith and also preferably joined to the vertical side wall 74. The passage 76 formed between the top wall portions 75 provides clearance for the usual impression roller '77 rotatably mounted on a horizontal shaft 78 supported by conventional means not shown. The nip of the roller 77 with the cylinder 19 preferably is slightly below the top wall portions 75, as shown in FIGURES 2 and 3, and the top wall portions 75 overlie the ends of the cylinder 19 but terminate short of the open side of the body portion 69. A partial cover plate 79 for the passage 76 is mounted upon the top wall portions 75 between the side wall 74 and the impression roller 77, and the inner edge of this cover plate extends as closely as practical to the periphery of the impression roller 77, FIGURE 2.

The cover plate '79 is detachably secured near opposite ends thereof to the top Wall portions 75 by bolt means 80. The cover plate 79 has a depending integral flange 81 engaging inwardly of side wall 74 and releasably secured thereto by additional bolt means 82. The cover plate '79 therefore covers the portion of the passage 76 extending beyond one side of the impression roller 77. The portion of the passage 76 on the opposite side of the impression roller is occupied to a large extent by an ink applying and doctor blade unit presently to be described. The end walls 7% are additionally provided with vertical slots 83 opening through their lower edges to receive the suspension pins 56 during vertical adjustment of the housing body portion 69 downwardly, as where the same is employed with smaller printing cylinders. Where a larger or smaller impression roller 77 is employed, the partial cover plate 79 may be replaced by a wider or narrower plate as needed.

An ink applicator and doctor blade unit 84 is independently supported on carrier means, not shown, adjacent the top and open side of housing body portion .69 beyond the ends of the flanges 75, FIGURE 2. This unit embodies a doctor blade holder 85 carrying the usual doctor blade 85 which engages the periphery of the cylinder 19 relatively near the nip and on one sidethereof. The unit 84 further embodies a pressure type ink applicator having a horizontal tubular nozzle 87 extending parallel to the cylinder 19 and spaced somewhat radially therefrom. The nozzle 87 has discharge apertures 88 to direct the ink under pressure directly onto the periphery of the cylinder 19 throughout its axial length. The nozzle 87 is supplied with ink through an inclined pipe 89 from a suitable source, not shown.

Customarily, in the prior art apparatus, the ink applicator is arranged on the opposite side of the nip from the doctor blade, or the cylinder 19 rotates in a bath. In either case, however, the highly volatile constituents of the ink partially evaporate and the residue tends to accumulate on the doctor blade. Consequently, it has been discovered that superior results are obtained by applying the ink to the cylinder close to the doctor blade and on the same side or" the nip therewith so that the ink is still in a highly fluid state when engaged by the doctor blade.

The excess ink scraped off of the cylinder 19 by the doctor blade drains downwardly into the tray 52 and forms a shallow pool therein to maintain the cylinder wet as previously described. The ink drains from the tray through the openings 57 and enters the bottom of the trough 2-1 to be then drained otf through the fitting 45.

The unit 84 is of a length greater than that of the cylinder 19 but is shorter than the housing 69, FIG URE 3, to accommodate the reciprocation of the doctor blade 86 during operation. A flexible curtain 90 formed of nylon or the like is suspended from the unit 84 and serves to cover the open side of the housing body portion 69 above the trough 41. The lower portion of the curtain 90 engages inwardly of the'adjacen-t trough side Wall 42, FIGURE 2, and no ink can therefore escape through the open side of the housing. The flexible curtain 99 is coextensive with the doctor blade holder to overlie the slinger shield 64 and extends from the top of housing body portion 69.

When it is desired to remove the cylinder 19 for servicing or for interchanging the same with another cylinder, the clamp shoes 37 are released from engagement with the bearing cartridges 15 and the pivoted keepers 51 are elevated from engagement with the trough end walls 44. The bearing cartridges 15 may then be rolled outwardly on the rollerways 16 and the trough 41 and the housing structure mounted thereon may be rolled bodily on the tracks 48 along with the cartridges 15 and the entire cylinder 19. When the cartridges 15 pass beyond the ends 91 of the rollerways 16, FIGURE 7, the cartridges are no longer directly supported by the frame sides 11 and 12 and the shaft extensions 21) then settle downwardly in the arcuate recesses 45 and are directly supported by the heavy end walls 44 of the ink trough. In this manner, the entire assembly of the trough, housing structure, printing cylinder and bearing cartridges can be rolled on and off of the frame sides of the press for servicing or the like.

During this operation, the impression roller 77 may be elevated from the cylinder 19 and the unit 84 remains independently supported and passes freely from the passage 76 and the open side of the housing body portion 69.

During normal operation, the cylinder 19 and impression roller 77 turn in the direction of the arrows in FIGURE 2. Consequently, any ink slung from the cylinder 19 by centrifugal force will be trapped within the housing structure on the side of the nip remote from the doctor blade 86. The unit 84 and the curtain will also largely block the escape of any ink from the other side or from the top of the housing, as should be obvious.

Although a certain specilc embodiment of the invention has been shown and described, it is obvious that many modifications thereof are possible. The invention, therefore, is not to be restricted except insofar as is necessitated by the prior art and by the spirit of the appended claims.

What is claimed is:

1. In a machine for applying fluid to a Web, a pair of frame sides having notches therein forming pockets and rollerways leading from the pockets, rollable bearing cartridges engaging within the pockets and rollable therefrom upon the rollerways, releasable abutment means engaging the bearing cartridges to normally maintain them Within the pockets, a cylinder having supporting shaft ends journaled for rotation Within the bearing cartridges, a trough underlying said cylinder and having end walls provided with recesses receiving lower por tions of the shaft ends and spaced normally somewhat therefrom, a bed structure beneath said trough and between the frame sides, roller means on the trough and engaging the bed structure and supporting the trough on the bed structure, the axes of the roller means and bearing cartridges being parallel, and releasable stop means on the bed structure engageable with the trough to normally hold the same .fixed upon the bed structure and allowing the same to roll on the bed structure when the bearing cartridges are released to roll upon said rollerways, said lower portions of the shaft ends dropping into supported engagement .within said recesses of the end walls when said bearing cartridges rollfrom the ends of said rollerways. f

2. Theinvention as defined byclairn 1, and wherein said rollerways and pockets are grooved, and annular ribs on said bearing cartridges having} guided engage ment with said grooves.

3. The invention as defined by claim 2, and rotatable screwathreaded means on one bearing cartridge connected with one of said shaft ends and operable to shift the latter axially within the bearing cartridge to cause axial adjustment of said cylinder.

4. In a machine for applying fluid to a web, a cylinder having a shaft end, bearing means supporting the shaft end for rotation, a trough underlying said cylinder and shaft. end and having an end wall inwardly of the bearing means and underlying in partially surrounding relation said shaft end, an outwardly opening cuplike shield removably secured to and surrounding the shaft end above said trough andhaving a side wall spaced from the periphery of the shaft end and an inner end wall sub-stantially engaging the shaft end and projecting radially thereof, said cup-like shield including separable segments releasably secured together in gripping relation about said shaft end to rotate therewith, an end plate removably mounted on said trough end wall and overlying in partially surrounding relation said shaft end, and a coacting downwardly opening arcuate shield mounted upon said end plate and surrounding at least the upper :portion of said shaft end and interfitting telescopically with said cup-like shield and serving with the cup-like shield to prevent fluid from contacting the shaft end or migrating therealong toward the bearing means and also serving to drain fluid downwardly into said trough, said coacting arcuate shield being stationary with relation to the rotary shaft end.

5. The invention as defined by claim 4, and a radial flange on said coacting arcuate shield near the inner end thereof and within the cup-like shield and spaced therefrom and forming therewith a tortuous passage to block the passage of fluid to said shaft end, said radial flange havingdepending end extensions on its opposite sides and inclined. outwardly of said cup-like shield to drain fluid beyond'the cupalike shield into said trough.

6. In printing mechanism, a printing cylinder, shaft ends carrying the printing cylinder, bearing means rotatably supporting the shaft ends axially beyond opposite ends of the printing cylinder, an ink trough underlying the printing cylinder and shaft ends inwardly of the hearing means,- said trough having end walls, a pair of upstandingplates detachably mounted upon the end walls and projecting thereabove and substantially contacting the inner faces of the end walls, said plates having vertical slot means, arcuate downwardly open shields secured to said plates and projecting inwardly thereof and above the trough and engaging over portions of the shaft ends inwardly of the end walls to protect the same from contact with ink, coacting annular shields secured to the shaft ends inwardly of the arcuate shields and engaging telescopically over the latter in spaced relation thereto, a downwardly open box-like housing for the upper portion of said cylinder and substantially covering the trough and having vertical end walls engaging inwardly of said plates, said housing open at one side and having a top opening adapted to receive an impression roller and doctor blade unit, fastener means on the end walls of the housing engaging said slots of the plates and rendering the housing vertically adjustable upon the plates, an independently supported doctor blade and ink applicator unit engaging within said top opening and openside of the housing adjacent one peripheral region of the cylinder, and a flexible dependent curtain secured to said unit and substantially covering the open side of the housing and extending within the trough closeto one side wall thereof. V

7 The invention as defined by claim 6, and a cover plate section for the top of said housing detachably secured thereto on the side thereof remote from said unit and serving to cover. the adjacent portion of the housing top opening. w l

8. The invention according to claim 6, and clip means on saidsupstanding plates near the bottoms, thereof and engaging detachably over the top edges of the trough end walls.

9. The invention according to claim 6, and wherein the end walls of the housing have vertical slots opening through their lower edges and engaging adjustably over said arcuate shields.

10. The invention as defined by claim 11, and wherein said releasable means engaging said cartridges comprises arcuate abutment shoes contacting the peripheries of the cartridges and slidable upon the rollerways, coacting wedge elements engaging said shoes to force them into firm engagement with the cartridges for maintaining the latter engaged with said stop means, and screw-threaded adjusting means for said wedge elements connected with the frame sides 11. In a machine for applying fluid to a web, a frame having sides including rollerways with stop means thereon, cylindrical bearing, cartridges rollable on the roller- Ways and engaging said stop means, abutment means releasably fixed on said rollerways and engaging the bearing cartridges to normally maintain them against said stop means, a cylinder having supporting shaft ends journaled for rotation within the bearing cartridges, :1 housing movably mounted on said frame between said rollerways and normally underlying said cylinder, said housing having sturdy end walls provided with recesses receiving and freely surrounding the shaft ends, and releasable stop means on the bed structure engageable with the housing to normally hold the same fixed upon the frame and allowing the same to be moved with the cylinder when the bearing cartridges are released to roll upon said rollerways, said lower portions of the shaft ends dropping into supported engagement within said end wall recesses when said bearing cartridges roll from the ends of said rollerways.

12. In a machine as defined by claim 11 wherein said rollerways are grooved, and said bearing cartridges have annular ribs in guided engagement with said grooves.

13. Ina machine as defined by claim 12 including rotatable screw-threaded means on one bearing cartridge connected with one of said shaft ends and operable to shift the latter axially within the bearing cartridges for axial adjustment of said cylinder.

14. In a machine for applying fluid to a web, a roll to turn in a liquid bath and having shaft ends, bearing means supporting the shaft ends for rotation and spaced from the ends of said roll, a trough receiving the lower portion of the roll and having upstanding side and end walls and a bottom wall and substantially enclosing the lower portion of said roll, said trough end walls having recesses to receive the shaft ends, a shallow pan mounted within said trough for vertical adjustment to contain the bath in engagement with the bottom of said roll, upstanding plates near and above said end walls and having recesses receiving the shaft ends, downwardly opening clips secured to said plates and engageable with the top edges of the end walls to fixedly mount the plates thereon, downwardly opening arcuate shields secured within the recesses of the plates and overlying and surrounding the tops and sides of the shaft ends, coacting outwardly opening substantially annular shields having closed inner ends secured to the shaft ends axially inwardly of the arcuate shields and receiving the latter telescopically in assembly and turning with the shaft ends, said plates having vertical slots formed therein, a downwardly open box-like hood for the top portion of said roll and. substantially coextensive with said trough and substantially covering the top of the same and having end walls lying adjacent the end walls of the trough, and fastener means on the endwalls of the hood engageable with the slots of said plates for vertically adjustably securing the hood to the plates, the end walls of the hood having downwardly opening'slots ,receiving said shaft ends adjustably therein, whereby the enclosure formed by said trough, pan, upstanding 9 plates and hood may be adjusted and dismantled for accommodating rolls of different diameters.

15. In an intaglio printing machine, support bearing means, an intaglio printing cylinder of selected diameter removably journaled for rotation upon said support bearing means, a casing structure at least partially enclosing said printing cylinder and having an ink drain opening in the lower portion thereof, said casing having an opening in its top wall to enable formation of a nip between the upper periphery of said cylinder and an overhead impression roller, a doctor blade engaging the periphery of said cylinder on one side of the nip area thereof, a pressure type ink applicator device for directing ink onto the periphery of said cylinder close to the doctor blade and on the side of the blade opposite the nip area, and a reciprocal holder supporting both said doctor blade and said ink applicator device whereby said ink applicator device will be positioned automatically when the doctor blade is adjusted to the selected cylinder.

16. In an intaglio printing machine according to claim 15 wherein said casing has an opening across one side to receive said reciprocal holder, and a curtain attached directly to and extending completely across said holder and depending into said casing beneath said latter opening, whereby said doctor blade, said holder and said curtain completely surround said ink applicator device opposite said cylinder and prevent any possible escape of splashing ink.

References Cited in the file of this patent UNITED STATES PATENTS 1,145,516 Schmid-Roost July 6, 1915 2,014,303 Weiss Sept. 10, 1935 2,018,193 Smith Oct. 22, 1935 2,177,656 Kaddeland Oct. 31, 1939 2,630,065 Caulfield Mar.'3, 1953 2,637,270 Bamford May 5, 1953 2,829,932 Werner Apr. 8, 1958 2,835,123 Galinski May 20, 1958 2,931,297 Coudriet Apr. 5, 1960

Claims (1)

1. IN A MACHINE FOR APPLYING FLUID TO A WEB, A PAIR OF FRAME SIDES HAVING NOTCHES THEREIN FORMING POCKETS AND ROLLERWAYS LEADING FROM THE POCKETS, ROLLABLE BEARING CARTRIDGES ENGAGING WITHIN THE POCKETS AND ROLLABLE THEREFROM UPON THE ROLLERWAYS, RELEASABLE ABUTMENT MEANS ENGAGING THE BEARING CARTRIDGES TO NORMALLY MAINTAIN THEM WITHIN THE POCKETS, A CYLINDER HAVING SUPPORTING SHAFT ENDS JOURNALED FOR ROTATION WITHIN THE BEARING CARTRIDGES, A TROUGH UNDERLYING SAID CYLINDER AND HAVING END WALLS PROVIDED WITH RECESSES RECEIVING LOWER PORTIONS OF THE SHAFT ENDS AND SPACED NORMALLY SOMEWHAT THEREFROM, A BED STRUCTURE BENEATH SAID TROUGH AND BETWEEN THE FRAME SIDES, ROLLER MEANS ON THE TROUGH AND ENGAGING THE BED STRUCTURE AND SUPPORTING THE TROUGH ON THE BED STRUCTURE, THE AXES OF THE ROLLER MEANS AND BEARING CARTRIDGES BEING PARALLEL, AND RELEASABLE STOP MEANS ON THE BED STRUCTURE ENGAGEABLE WITH THE TROUGH TO NORMALLY HOLD THE SAME FIXED UPON THE BED STRUCTURE AND ALLOWING THE SAME TO ROLL ON THE BED STRUCTURE WHEN THE BEARING CARTRIDGES ARE RELEASED TO ROLL UPON SAID ROLLERWAYS, SAID LOWER PORTIONS OF THE SHAFT ENDS DROPPING INTO SUPPORTED ENGAGEMENT WITHIN SAID RECESSES OF THE END WALLS WHEN SAID BEARING CARTRIDGES ROLL FROM THE ENDS OF SAID ROLLERWAYS.

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