US2334628A - Printing machine - Google Patents

Description

Nov. 16, 1943. w. I HUCK E1- AL 2,334,628

PRINTING MACHINE Filed OCT.. 3, 1940 4 SheetlS-Sheetll I I ,ff no' FREDERICK LAMATscII II FRANZ HIELLEQ` W. F. HUCK ET AL PRINTING MACHINE Nov. 16A, 1943.

Filed oct. 5,1940 4 sheets-sheet 2 /S//NZ j//////// INVENTORS v WILLAM F. HUCK FREDERICK LAMATSCH FRANZ HELLER ATTO NEY I I I I l I I I 4 Sheets-Sheet 3 W. F. HUCK ETAL PRINTING MACHINE Filed oct. 3. 1940 INVENTQRS WILLIAM-F. HUCK FREDERICK LAMATSCH FRANZ HELLER 7 ATT NEY I I I III-FI Nov. 16, 1943.

W. F. HUCK ET AL` Nov. 16, 1943.

PRINTING MACHINE Filed oct. 3, 1940 4 Sheets-Sheet 4 R Smm@ RUM.L Vl HAE mH m f l mmmw. o n /l WLER VY/ll Il, /l www?. A wm I. I /M/f y www, I

Patented Nov. 16, 1943 UNITED STATES PATENT"o-FFicE-- PRINTING MACHINE William F. Huck, RichmondHill, N. Y., Frederick Lamatsch, Grantwood, N. J., and Franz .-Heller, Mount Vernon, N. Y., assigner-s to R. Hoe & Co.,

'y Inc., New York,r N. Y.. a corporation of New York Application October 3, 1940, Serial No. 359,570

24 Claims. (Cl.f101219) 'I'his invention relates 'to'printing machines and more particularly to improvements therein to adapt them to use rapidly drying ink of the type requiring the provision of heat to maintain the ink in a fluid condition.

A preferred ink which will quickly dry an l. which requires heat to liquefy it and to maintain it uid, contains afwax base in its mixture. This ink is adapted to readily-flow when` heated to a ink owing temperature. It has also been foundv desirable in some instances to cool other parts and mechanisms of such printing machines to temperatures the same as or below the ink setting temperature. While heating the various machine parts' and mechanisms, it is also desirable to maintain the other parts and mechanisms of the machine at substantially normal temperatures and therefore provision is made to insulate the heated and if desired the cooled machine parts and mechanisms, from the remaining parts of the machine.

One object of this invention is `to provide an improved printing machine adapted to efiicient- 1y operate to print impressions upon a web or sheet, using ink that-is solid at normal temperatures and is made iluid by heat.

Another object is to provide in a printing machine, improved. means to heat various parts and mechanisms to a temperature slightly in excess of the temperature required to cause such ink to become fluid and to maintain such a temperature substantially constant, and the heat uniformly distributed throughout the heated parts or mechanisms.

Another object is to provide in such a prin*- ing machine, means to cool certain parts there of, and to maintain the cooling action substantially constant and uniform throughout the cooled parts. l

It is also an object of this invention to provide a printing machine of generally improved construction and that is arranged to print with ink that is solid at normal temperature, whereby in construction, as well as convenient,1practical, serviceable and eiilcientl in use.v i

' With the' foregoingvand other objects fin view, which will appear as the description proceeds,

the invention resides in the combination andar- L rangement of parts, and in the details of construction hereinafter `described andl claimed.A

The preferred embodiment ofthe invention is illustrated in the accompanying drawings, wherein: .y

Figure 1 is a diagrammatical view of yaprinting machine embodying the features and 'principles -o'f this invention;

Figure 2 is a side view of a'plate cylinder used in the machine of this inventiompart ofthe cyl.. inder being sectioned to s'how the'internal construction thereof on the-'line 2--2 o f Figure 3;

Figure 3 is a sectional view taken on the line 3-3 of Figure 2;

` Figure 4 is a broken and partial top plan view y of a plate cylinder;

Figure 5 is a sectional viewV of an ink distributing cylinder used in the machine of this invention; l

Figure 6 is an enlarged sectional view taken on the line 6-6 of Figure 5;

Figure 7 is a tcp plan view of an ink rail used with the machine of this invention;

Figure 8 is a side view of the ink rail shown in Figure 7 and showing .an ink. pump casing in place thereon;

Figure 9 ,is an enlarged sectional View taken on the line 9,--9 of Figure '7;

JFigure 10 is a top plan view of the ink pump I casing with its cover removed;

Figure 11 is'a sectional view taken on the line ll-II of Figure l0;

Figure 12 isa broken and partly sectioned side view of a Water cooled vvweb turning bar for vthe edges of the former of thefolding mechanism of the machine shown in Figure r1; and

Figure 12a, is a sectional view of the turning sets o'f cylinders,f rollers and-'partsare in thisin'- stance arrangedone above the other,.the upper set comprising a plate cylinder i5 which'cooperates with an impression cylinder I6, a reciprocable ink distributing cylinder II, ink transfer rollers I8 and I9, ink spreading rollers 2l and 22, an ink rail 23 and an ink pump 24. The lower set includes `a plate cylinder 25, an impression cylinder 26, a reciprocable ink distributing cylinder 21, ink` transfer rollers 28 and29, ink'sprea'ding rollersSI and 32, an' ink rail 33 and anink'purnp 34,

Each unit II, I2 and I3 is adapted to receive a web 35 leading thereto from a source of supply such as suitably disposed web rolls (not shown) about a roller 36vanda roller 31, the roller 31 being disposed substantiallyad-jacent to the lower cooperating' plate and impression cylinders 25 and 26 respectively. After passing between the lower plate and impression cylinders 25 and 26, the web 35 is led over a roller 38, which is substantially adjacent to these cylinders, and then about rollers 39 and4I to the cooperating upper plate and impressionv cylin'- v, common roller v49, tota former devce 5I of the .,ders I5 and I6 respectively. Upon leaving the plate' and. impression cylinders .I5 and I6, the web, 35.' isledsabouta roller4 42, a swngable web .tensioning'roller 43, to aweb slitting device 44.

folding mechanism I4, and the other`part of the Y web 35 is vled about a turner rbar or bars 5 2, rollformer device 5 I.

The collected'and arranged parts, 0f the mechanism I4 and delivered in assembled condi- --"ti on;1-as is usual in printing machines of the type under consideration. 1

Ink isnsupplied to the plate or plates 48 and 58 (Figure il on the plate cylinders l5 and 25, by the ink transfer rollers I8, I9 and 28, 29 respectively, from the ink distributing -cylinders I1 and 21 respectively-, Ink is supplied'to the ink distributing,1 cylinders I1 and 21 by the ink rails 23 and 33 respectively, which obtain a sup- .ply of ink from ink pumps 24 and 34 through tubes inst shown Vbut leading from each of the cylinders of each pump), to a plurality of outlets159 (Figure 9) provided in and spaced apart along the inl; izaiis 23 Vand 33, where they engage the ink distributingcylinders.I1 and 21.

The form and operation of the ink pumps and ink rails usedwith the machine of this invention are fully shown and described in Patents Nox-1,589,148. issued June l5., 1926, and No.

1,348,900, issued August 10, 1920, respectively.

through'pipes 52,' 63 -and 64 leading from a main .Ink is supplied'to the ink- pumps 24 and 34.'- irom a` common source'of supply-or tank 6I,.

pipe connected tothe tank 6I through a shutv ofi valve- 66. In view of the characteristics of -the ink used in vtheV printing .machine .of this in- -'vention, -the tank 6I is double-walled and hot .v-'aterfor other heating'medium'is'caused-to now ironia source of supply (not shown) through a pipe'fl' into the space between the `vv'alls'of the c 6I, and about the same to heat the ink ined therein to a temperaturewhereby it .lt, ii solidified, into a iluid condition, and

nbe maintained insuch a condition, This 'liquefiediiikqmaypowdow through the pipesv 62, Sli` and 64 to the ink pumps 24 and 34er .ich unit.`

COPY

In order that the ink in the pipes 62, 63, 64 and 65 will be maintained in the desired uid condition, each of these pipes is enclosed in a pipe 68, 69, 1! and 12 respectively of larger diameter, through which hot water or like heating medium is caused to flow from and to return to the source of supply by means of connecting pipes 13 and 14 respectively, disposed at each unit.

To maintain the ink in fluid condition While in, and as it passes through, the pumps 24 and 34 at each unit, a casing 15 (Figures 8, 9 and l0) is provided for each pump. The casing 15 is provided with a passageway 16 in its walls through .which hot water is caused to ow from an inlet port 11 to an outlet port 18 connected respectively to the source connecting pipes 13 and 14. In order to maintain the ink at owing temperature as it flows from the ink pumps 24 and 34 to and through the ink rails 23 and 33, and onto the ink distributing cylinders I1 and 21 respectively, each of the ink rails is provided with a passageway 19 (Figure 1) leading from its end 6I, upon-which the respective pump 24 or 34 is mounted to and beyond the series of ink outlets 59 (Figure 9) in theink rails 23 and 33. Inlet and outlet ports 82 and 83 are provided for the passageway 19 and are connected respectively to the source connecting pipes 13 and 14, wher/elly hot Water will ow through the passag/away T9 to heat the respective rail.

' The ink distributing cylinders I1 and 21 (Figures 5 and 6) are hollow and are also heated to maintain the ink thereon in a uid condition, by passing hot water therethrough, also from the source connecting pipes 13 and 1,4, which are connected respectively to inlet and outlet ports 84 and 85.1 A flow deflector 86 is provided at the inlet end of the ink distributing c'ylinders I1 and 21 to .deflect the stream of water as it enters againstl the interior side walls thereof. The ilow deflector 86 comprises, in this instance, a hollow sleeve 81 and a plate 88 covering the inner end of this sleeve, and being larger in 4diameter than the sleeve, the other sleeve end being secured as by welding, to the shaft spindle 89 of the respective cylinder. Slots 9|, three being shown herein, are provided in the sleeve portion 81, just in back of the plate 88, whereby the water entering the cylinder Will be directed radially out of the sleeve 81 toward the interior walls of the cylinders I1 or 21. A plug 92 is provided in one end of each of the cylinders I1 and 21 to provide means to allow air to escape when lling the system with hot water and to ',.drain the water from said cylinders, when this is desired.

The plate cylinders I5 and 25 (Figures 2 and and '3) thereon in a fluid condition as it is being applied to the web 35. This is accomplished by connecting the ends of each plate cylinder I5 and 25 of each unit with a source of hot water supply by inlet and outlet connecting pipes 93 and 94 respectively. The platel cylinders are each .provided with a system of interconnecting bores to insure uniform conduction of heat from the hot water supplied thereto to its peripheral or platereceiving surface. This system of bores includes axial bores 95 and 96 leading through cylinder bearing end portions 91 and 98 respectively to the Vcylinder body 99. The bores 95 and 96 extend a short distance into the cylinder body 99 and a'plurality of radially directed bores, in this instance, two axially spaced apart rows of bores IGI and 102, are provided. The

are also heated to maintain the ink boresv IDI and |02 are also perpherally spaced apart (Figure 3), the bores |02 leading from the central bores 95 and 96 radially toward plate clamp receiving grooves |03 and the bores spaced apart bores |04 and each of the bores |02 connects with one of a plurality of axially dif` rected and peripherally spaced apart bores |05. The bores |04 and |05 are peripherally spaced apart in alignment with the respective bores and |02 connecting therewith, the bores |04- being disposed intermediate the periphery of the plate cylinder and the axis thereof in a determined position, and the bores being disposed intermediate the plate clamp grooves |03 and the axis of the cylinder in a determined position. The position of the bores |04 and |05 and their diameter is such that heat supplied therein by the hot water, circulated therethrough from one end to the other from the bores 95 and 96 will be conducted uniformly by the adjacent metallic material of which the cylinder is made, to all parts of the cylinder, whereby even expansion'of the same will be obtained and a uniform peripheral temperature will be maintained. In other words, the bores |04 and |05 are so located, with respect to the material mass constituting the cylinder and surrounding these bores, that the heat from the hot water therein will be conducted through this surrounding mass of material uniformly in all directions. To accomplish this result, the centers of the bores |04 are disposed on a circle somewhat larger in diameter than the diameter of the circle upon which the centers of the bores |05 are disposed, thus compensating for the mass of material removed when the clamp grooves |03 are formed therein.

The printing plates 48 and 58 (Figure 4) are,

yas is usual, clamped upon each half length of the cylinders I5 and 25 against a central stationary ring |08 by means of a floating plate engaging lug |09 and a clamp lug II| actuated by a clamp screw |I2. The lugs |09 and |I| slide axially in the clamp grooves |03 and of necessity are spaced apart. To provide better heat conductivity between the cylinder surface and the printing plates 48 and 58 carried therehot water supplyy are indicated, one leading through the pipes 13 to the inl; distributing cylinders I1 and 21 the ink pump casings 15,

the ink rails 23 and 33, the ink tank 6I, and the ink supply pipes 62, 63, 64 and 65, and returning through the pipes `14; and the other leading through the pipes 93 to the plate cylinders I5 and 25 and to the pre-heating rollers 31, .and returning through the pipes 94, but in most instances, only -one'source of hot'water supply is required. The advantage of providing two sources cf hot water supply is 4that should .aq

higher temperature of water be found desirable in either circuit, this can` be supplied without aIecti/ng the temperature of the water supplied to the other. l' v As hereinbefore mentioned. it isdesirable to cool certain other parts and mechanisms of tle printing machine of this invention. For this p pose, a supply of cool or refrigerated fluid rom a source (not shown) is transmitted to the /parts of each of the printing units |I, I2 and I3 by means of pipes |24, '|23 and |22 respectively, pipe |22 leading from the said source of supply. Each of the pipes |24, |23 and |22 is connected to one end of each of the rollers 3 8 and 42 and to the upper` impression cylinders I6 Ex-v nected to thecold Water source connecting pipe I l 22, and by a pipe |28 to the disposal system. In some instances, it is desired'to cool the roller- 51, over which the lowe'rmost web portion 56 is led toward the `folder |.4, and therefore this roller 51 is connected to the Vcold water source w v connectingpipe |22,'and to the Waste pipe |21.

48 and 58 with the peripheral surface of the cylinders I5 and 25 the undersurfaceof these plates may be formed to t snugly thereagainst or provided with fewer grooves in their undersurface than it has heretofore been the practice to provide.

Web turning bars |06 on theformer 5| also are preferably cooled byA being connected to the cold water pipe I 22 and to the wastepipe |21.

As indicated in Figures 12 and 12a, the webturning bars |06 may be composed of -two telev scoped hollow members |29 and |3I, both of which are welded to a bar |30. The bar |30 is provided with spaced apart holes |32 vvhicl'i-ex.

fing to obviate heating and sticking of theink' -to the surface of the former 5|and to facilitate the movement of the webs. I'he outer mem,- ber |3| and the bar |30 are preferably so ar ranged as to form a groove having sides |34 and |35 to provide for the distribution of air com ing from the holes, |32. Cool Water from the source connecting pipe |22 may be circulated lengthwise through the outer member |3| to both cool the -air in the memberl |29 and also y ranged to be used with air may be. employed in stead of bars 52.

, In addition to cooling the upper impression cylinder I6 by'cooled or refrigerated water or other uid, it is at times, also advisable to atomize or sprayan emulsion of oil vand water directly onthe peripheral surface of this cylinder I6. Provision is therefore made for so applying such an emulsion, and includes nozzles |36 directed toward the impressioncylinder I6 of each unit Il, l2 and I3 adjacent a plush emulsion spreading roller |31 provided 'for this purpose. The nozzles |36 are connected togethcr` and to a pipe |38 leading from a source of emulsion (not shown) As it is desirable to maintain the parts and mechanisms of the printing machine of this `invention, which are not heated at substantially normal temperature, means is shown herein to .insulate the plate, impression and ink distributing cylinders from the supporting frames and other adjacent parts of the machine. As a similar arrangement is provided for the plate and impression cylinders, vonly one is shown (Figure 1,2) in association with the plate cylinder. The 'shaft ends of theV plate and impression cylinders are preferably journaled in roller bearings |39,

|43v toreduce' the contact area thereof with the outer shells of the bearings |39 and thus reduce the conduction'of heat from the cylinder shaft :to the, machine frame. As indicated in Figure 5, the bearing sleeves |44 of the ink distributing cylindersare supported by insulating sleeves |45 ,haying' axially spaced apart annular grooves |46 in their interior surface to insulate the machine 'frames from the yheated ink distributing cylinders.

.From the foregoing description of this invention, it is obvious that an improved printing l machine has been provided .which is adapted to the eirlcientuse of an ink that must be maintained at a relatively high temperature to keep it in a fluid condition before and while printing isvbeing done.

When using the preferred ink, the printing plates 48 and 58 on the cylinders l5 vand 25 are maintained at from 215 to 230 Fahrenheit Vand the cylinders 'i5 and 25 at from 240 to 250 Fahrenheit. The preferred temperature at which the' distributing cylinders Il and 2l, and the web `pre-heating rollers 3l are maintained is substantially 215 to 225 Fahrenheit, and the temperature of all of the impression cylinders I6 and 2 6, the 4cooled rollers 38v and 42, the turner bars 52, andthe bars |06 atthe edges of the former .5l is preferably approximately '70 Fahrenheit or below.

4 Itwill be understood that the invention may be embodied in other specific forms without departing vfromfthe spirit or essential attributes thereof,'and it is therefore desired that the pres- `ent embodiment be considered in all respects as illustrative and not restrictive, and `it will be further understood that each and every novel feature and combination present in or possessed by the machine herein disclosed forms a part of the invention included in .this application.

What we claim is:

*1. In a printing machine capable of using a rapidly drying ink requiring heat to maintain it in a fluid condition, and having means to heat the ink and to maintain it at substantially its liquefying temperature from a source of supply to its point of use, including a source of ink supply including an ink tank, an ink pump, an ink distributing cylinder, an ink rail to receive ink from the pump and to apply it upon the ink distributing cylinder, means to conduct ink from the tank to the ink pump, fluid jackets surrounding the 4ink tank and ink conducting means, and

means to conduct to andto circulate a heated fluid through the jackets.

2. In a printing machine capable of using a rapidly drying ink requiring heat to maintain it in fluid condition, and having means to heat the ink and to maintain it at substantially its liquefying temperature from a source of supply to its point of use, including a source of ink supply including an ink tank, an ink pump, an ink distributing cylinder, an ink rail to receive ink from the pump and to apply it upon the ink distributing cylinder, means to conduct ink from the ink tank to the ink pump, the ink pump having a hollow casing thereabout having a passageway therethrough for ruid, and means to circulate a heated fluid through the passageway in the hollow casing.

3. In a printing machine capable of using a rapidly drying ink requiring heat to maintain it in fluid condition, and having means to heat the ink and to maintain it at substantially its liquefying temperature from a source of supply to its point of use, including a source of ink supply including an ink tank, `an ink pump, an ink distributing cylinder, an ink rail to receive ink from the ink pump and to apply it upon the ink distributing cylinder, means to conduct ink from the ink tank to the ink pump. the ink rail being provided with a passageway, and means to conduct a heated fluid through the passageway in the ink 4. In a printing machine adapted to use a rapidly drying ink requiring heat to maintain it in usable condition, and having means to heat the ink and to maintain it at substantially its liquefying temperature from a source of supply to its point of use, and to cool it to substantially its solidifying temperature at use, including in combination, a plate cylinder, an impression cylinder cooperating with the plate cylinder, an ink distributing cylinder, conduit means to supply heated ink to the ink distributing cylinder, means to heat the peripheral surface of the ink distributing cylinder and printing plates on the plate cylinder, and means to cool the impression cylinder by circulating cold fluid therethrough.

5. In a printing machine adapted to use a rapidly drying ink requiring heat to maintain it in fluid condition, and having means to heat the ink and to maintain it at substantially its liquefying temperature from a source of supply to its point of use, and to cool it to substantially its solidifying temperature at use, including in combination, a plate cylinder, an impression cylinder cooperating with the plate cylinder, an ink distributing cylinder, heated conduit means to supply heated ink to the ink distributing cylinder, means to heat the peripheral surface of the ink distributing cylinder and printing plates on the plate cylinder to a temperature above the liquefying temperature of the ink being used, and means to cool the impression cylinder to a temperature below the solidifying temperature of the ink by circulating cold fluid therethrough.

6. In a web printing machine capable of using a rapidly drying ink requiring heat to maintain it in a fluid condition, and having means to heat "the inlr and to maintain it at substantially its its liquefying temperature from a sourceof supply liquefying temperature from a-source of supply to its point of use," including in combination, a plate vcylinder, an impressioncylinder cooperating with theA plate cylinder, an ink-distributing cylinder,

means to heat the peripheral surface of the ink distributing cylinder'and printing plates on'the lplate cylinder` to a temperature above the liquefying 'temperature of the ink being yused-,1a heatedv ink container, andcon'duit means through which heat-ed 'inkfis carried from the container' to the ink distributing cylinder and deposited thereon without substantially lowering the'temperature of thesink'fand without exposing it to the atmosphere ;v

7. yIn a web printing machine capable of using arapidly dryingl ink requiring heat to maintain it in a duidv conditiorrjand having means to heat f the' in lrf` andjto maintain it at substantially itsv liquefyingternprature from'a sourceof supply to its point pf use, and to cool it to substantially-its solldifying temperature, including in combinal tion,'a` plate y cylinder', an' impression vcylinder cooperating with the plate cylinder; an ink distributing cylindenumeans'to heatthe peripheral surface 'of the ink distributing'cylinder and printing'pl'ates on'the plate cylinder to a temperature above the liqefying temperature of the ink being l used,'f a heated ink reservoir, conduit means-v through whicli"heated 'ink is carriedf'ro'm` the ifese'rfvdirto` the' ink distributing lcylinder and dep'sitedA thereon without substantially v lowering 'the temperature ot they ink. and without exposing it'to'the'atmospheregmeans to. cooll the vweb after it is printed, and means to heat said conduit means.

8. In a printing machine having a frame and adapted touse a rapidly'drying ink requiring heat to maintain it ln-usable condition, and having meansA to heat the ink and to maintain it 'at substantially its liquefying temperature from a source ofsupply to its point of use,'including in ecfombinatio'n. 'a plate cylinder, an impression cylinder cooperating with the plate cylinder, an ink distributing cylinder, means to supply heated ink to the-ink distributing cylinder, means to heat the peripheral surface of the ink distributing cylinder 'and printing plates on the plate cylinder', and bearing sleeves having annular grooves to reduce ...the `conduction of heat from the plate and ink distributing cylinders to the machine frame.

9. In a printing machine adapted to use a n rapidly `drying ink requiring heat to maintain it vin usable condition, and having means to heat the inl; and to maintain it at substantially itsliquefy- .ing temperaturefrom asource of supply to its point of use. and to cool itl to substantially its solidifyingtemperature, including a plate cylinder. an impression cylinder cooperating with the .nlatecylinden an ink distributing cvlinder. means fte supply heated ink to the ink distributing cylinder, meansvto heatthe pripheral surface of the ipk distributingI cylinder and-printing plates on the plate cylinder, bearingr sleeves having annular grooves to'retard conduction o f heat from the plate and ink rdistributing cylinders to the frame,

` means to cool the surface of the impressioncylin- -der, -and bearing sleeveshaving annular grooves to retardtheconduction of heat from themace-ine frame to the impression cylinder.

to its point of use, and to cool itto substantially lits solidifying temperature, including in combi- 4plate cylinder to a temperature above the liqueiying temperature of the ink being used, means to heatthe ink container, and means to cool the web after it is printed; the said heating means r,for the ink distributing cylinder, the printing plates and the ink container including passages l through which ahot uid is circulated.

11. lIn, a printing machine adapted to use a rapidly drying ink requiring heat to maintain it in lfluid condition, and having means to heat the ink and to maintain it at substantially its liquefying temperature from a source of supply to its point ofv use, and to cool it to substantially its solidifyingV temperature, including a plate cylinder, an impression cylinder cooperating with the plate cylinder, an ink distributing cylinder, means to supply heated lnk to the ink distributing cylinder, means to heat the peripheral surface of the inl; distributing cylinder and printing plates on theplate cylinder, web turner bars to turn a web after it has been acted upon by the plate cylinder, and means to cool the turner bars to a temperature below the solidifying. temperature of the ink being used.

12. Inv a printing machine adapted to use a rapidly drying ink requiring heat to maintainit in duid condition, and having means to heat the ink and to maintain it at substantially its liquefying temperature from a source of supply to its point ofl use, and'to cool it to substantially its solldifying temperature, including a plate cylinder, animpression cylinder cooperating with the plate cylinder, an ink distributing cylinder, means to supply heated ink to the ink distributing cylinder, means to heat the peripheral surface of the ink distributing cylinder and printing plates on the plate cylinder, afolding mechanism having a former with tubular turner bars at each side edge to receive compressed air and having outlets to direct the air against a web running thereover, and a hollow casing over the turner bars to receive cooled fluid to keep the air and the surface of the bars cool.

13. In a printing machine adapted to use a rapidly drying ink requiring heat to maintain it in fluid condition, and having means to heat the ink and to maintain it at substantially itsA liqueiyin thev plate cylinder toconduct heat from the l0. In a web 'printing machine capable of uin'g rapidly drying ink requiring`heat to maintain itinv a fluid condition, andQhaving means to f y cylinder to printing plates secured thereon. v

14.*In a printing machine adapted to use a rapidy dryingink requiring heat to maintain it in usable condition, and having means to heat the ink and to maintain it at substantially its liquefying temperature from a source of supply to its point of use, including in combination, a plate cylinder, an impression cylinder cooperating with the plate cylinder, an ink" distributing cylinder,

means to supply heated ink to the ink distributing 'with the interior of the cylinder, a' baiile plate disposed at the connection between the end of one of the hollow shaft ends and the interior of the cylinder to direct iluid toward the periphery of the cylinder, and means to supply and circulate heated fluid to and through the cylinder iromone end to the other.

15. In a printing machine adapted to use a rapidly drying ink requiring heat to maintain it in usable condition, and having means to heat the ink and to maintain it at substantially its liquefylng temperature from a source of supply to its point of use, including in combination, a plate cylinder, an impression cylinder cooperating with the plate cylinder, an ink distributing cylinder, means to supply heated ink to the ink distributing cylinder, the plate cylinder having spaced apart bores extending lengthwise thereof,

an axial bore leading into each end of the cylinder and radially directed bores connecting the axial bores with the spaced apart bores, and means to supply heated fluid to the axial bore at one end o! thev cylinder and lead it out of the bore at the other end.

16. In a printing machine adapted to use a rapidly drying ink requiring heat to maintain it in usable condition, and having means to heat the ink and to maintain it at substantially its liquepoint of use, including in combination, a plate cylinder, an impression cylinder cooperating with the plate cylinder, an ink distributing cylinder, means to supply heated ink to the ink distributing cylinder, the plate cylinder having a plurality of peripherally spaced apart plate clamp slots in its peripheral surface extending substantially parallel with its axis and having a plurality of spaced apart bores extending parallel with and below the plate clamp slots, an axial bore leading into each end of the cylinder, radially directed bores connecting the axial bores with the spaced apart bores, and means to supply heated fluid to the axial bore at one end and to lead the fluid away from the axial bore at the other end of the cylinder.

1'7. In a printing machine adapted to use a rapidly drying ink requiring heat to maintain it in usable condition, and having means to heat the ink and to maintain it at substantially its liquefying temperature from a source of supply to its point of use, including a plate cylinder, an impression cylinder cooperatingwith the plate cyl-` inder, an ink distributing cylinder, means to fying temperature from a source of supply to its supply heated i'nk to the ink distributing cylinder,

the plate cylinder having a plurality of spaced apart plate clamp slots in its peripheral surface extending substantially parallel with its axis and having a plurality of spaced apart bores extending parallel with and below the said plate clamp slots, an axial bore leading into each end of the cylinder, radially directed bores connecting the axial bores with the spaced apart bores, certain of the radial bores being in alignment with the clamp slots in the peripheral surface of the cylinder and others being disposed intermediate the same, and means to supply heated fluid to the axial bore at one end and to lead the fluid away from the axial bore at the other end of the cylinder.

18. In a printing machine adapted to use a raping parallel with andbelow the plate clamp slots,

an axial bore leading into each end of the cylinder, radially directed bores connecting the axial bores with the spaced apart bores, certain of the radial bores being in alignment with the clamp slots in the peripheral surface of the cylinder and others being disposed intermediate the same, the bores aligned with the clamp slots being disposed nearer the axis of theA cylinder than the other bores, the connecting bores at each cylinder end being arranged in two axially spaced apart planes, and means to supply heated fluid to the axial bore at one end and to lead the iluid away from the axial bore at the other end of the cylinder.

. 19. In a printing machine adapted to print with an ink that is hardened byv cooling, and having means to heat the ink and to maintain it at substantially its liquefying temperature from a source of supply to its point of use, and to cool it after the point of use of the ink to substan tially its solidifying temperature, including a web turning memberhaving an air passage therein, and a series of openings communicating with the passage through which air may be directed against the web to lessen the pressure ofthe web against the member, the said member also having a second passage adjacent the aforesaid passage through which a cooling fluid may be passed.

20. In a printing machine' adapted to print with an ink that is hardened by cooling, and having means to heat the ink and to maintain it at substantially its liquei'ying temperature from a source of supply to its point of use, and to cool it after the point of use of the ink to substantially its solidifying temperature, including a webturning member having an air passage therein, and a series of openings communicating with the pas sage through which air may be directed against the web to lessen the pressure of the web against the member, the said member also having a second passage substantially concentric with the aforesaid passage`through which a cooling fluid may be passed.

21. In a printing machine, means to maintain a rapidly drying ink requiring heat to maintain it in iluid condition substantially at its liquefyingtemperature from a source of supply to its point of use, including a heated source of supply,

a heated printing plate carrying cylinder, an ink vin fluid condition substantially at its liquefying temperature from a source of supply to its point of use. including a heated source of supply, a heated printing plate carrying cylinder, an ink distributing cylinder, a heated ink rail adapted to apply ink upon the ink distributing cylinder, a heated ink pump to force ink into theink rail.

and heated connections from the source of supply to the pump.

23. In a lprinting machine adapted to use a rapidly drying ink requiring heat to maintain it in fluid condition, a heated printing plate carrying cylinder over which a web ia led, a heated ink distributing cylinder, a heated ink rail adapted to apply ink upon the ink distributing cylinder, a heated source of ink supply, and heated connections between the source of supply and the rail, including heated means to force the ink into the rail.

24. In a printing machine adapted to use a rapidly drying ink requiring heat to maintain it in iluid condition, a heated roller over'whioh 15 a web is led, a heated printing plate lcarrying cylinder by which the web is printed. a heated ink distributing cylinder. a heated ink rail adapted to apply ink upon the ink distributing cylinder, a heated source of ink supply, heated connections between the nource of supply and the rail, including heated means to force ink under pressure into the rail, a cooled roller over which the web is led after it is printed by the plate cylinder, a cooled former, and cooled turner bars between the cooled roller and the former.

WILLIAM F. HUCK. FREDERICK LAMATSCH. FRANZ HELLER.

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