US2839025A

US2839025A - Wax carbon printing press

Info

Publication number: US2839025A
Application number: US368666A
Authority: US
Inventors: William F Burke; Robert L Essex
Original assignee: Royal Mcbee Corp
Current assignee: Royal Mcbee Corp
Priority date: 1953-07-17
Filing date: 1953-07-17
Publication date: 1958-06-17
Anticipated expiration: 1975-06-17

Description

m 1 w. F- BURKE ETAL WAX CARBON PRINTING'PRESS 6 Sheets-Sheet 1 Filed July 17. 1953 IN V EN TOR5 0/44 MM F 500 90554 7 L, 5555A June 17, 1958 w. F. BURKE ETAL 2,839,025

WAX CARBON PRINTING PRESS Filed July 17. 1953 6 Sheets-Sheet 2 JNVENTOR5 w/u/AM ave/r: 905 77 A 5555) J1me 1 w. F. BURKE ETAL 2,839,025

WAX CARBON PRINTING PRESS 6 Sheets-Sheet 3 Filed July 17. 1953 INVENTOR! LU/LL/i/V 5504!! 4905527 1. i155) 7 June 17, 1958 w. F. BURKE ETAL 2,839,025

WAX CARBON PRINTING PRESS Filed July 17. "1953 6 Sheefcs-Sheet 4 IN VEN TOR5 awn/4M A 5004 005:- z, iiiiX MOMM- June 17, 1958 w. F. BURKE ET AL 2,839,025

WAX CARBON PRINTING PRESS 6 Sheets-Sheet 5 Filed July 17. 1953 June 17, 1958 w. F. BURKE ETAL 2,839,025

WAX CARBON PRINTING PRESS Filed July 17, 1953 6 Sheets-Sheet 6 IN VEN TOR5 {UNA/4M /-1 Ever: P0359? 4. [555x Unite This invention. relates to-rotary presses for applying wax carbon to amoving web.

It'is among the objects of the invention to provide improved mechanism for conditioning wax carbon for printing upon a moving Web, and for regulating the distribution of theconditioned material as a'film upon selectedareas of the moving web.

It is also an object of the invention to provide improved means for controlling the temperature of wax carbon in preparation for, during, and after application to a moving web, and for adjusting the supply and distributionmechanisms to obtain a deposit of desired character "upon precisely defined areas of the web.

Another object of the invention is to provide means for heating and for chilling the wax carbon deposit after application to the moving web.

Another object is to provide a wax carbon fountain arrangement wherein the fountain pan may be readily adjustedto a desired elevation during operation, and which maybe lowered and bodily removed for cleaning or for change of the wax carbon supply.

A still further object .of the invention is to .provide "an improved arrangement of distributing rollers, and adjusting means therefor, for accurately regulating'the degree of contact between the various rollers and between the printing and impression cylinders.

The invention has other objects and features of advantage, some of which with the foregoing will be explained in the following description of that form of the invention illustrated in the drawings. It is to be understood that the invention is not limited to the embodiments shown in the drawings, as it maybe embodied in other forms within the definition ofthe claims.

In'the'drawings, I

Fig. 1 is a somewhat schematic side elevational view, partly in vertical longitudinal section, illustrating a unit embodying the present invention.

Fig. '2 is a similar schematic side "elevationalview illustrating the driving connections for'the unit.

Fig. 3 is a fragmentary sectional view, drawn upon a larger scale, illustrating the manner of mounting and adjusting the printing cylinder and the carbon film supplying mechanism for transferring wax carbon thereto.

Fig. 4 is a fragmentalend elevation, partly in'vertical transverse section, illustrating part of the wax carbon supply and transfer mechanism.

Fig. 5 is a fragmental side elevation, partly in longitudinal section, illustrating the fountain elevating and adjusting mechanism.

Fig. 6 is a fragmental sectional detail of part of the driving and roller adjusting mechanism, the planeof the section being indicated by theline 66-'of Fig. '3 viewed in the direction indicated by the arrows. 4

In terms of broad inclusion, the wax carbon printing press of the present invention comprises a printing cylinder and an impression cylinder operable for'applying a thin film of 'wax carbon onto desiredare'as of a continuous web of paper .fed between the cylinders. Waxcarbomis tates Patent -.tranferred onto the printing cylinder bya transfer roller which engages a fountain roller operating in "association with a fountain mounted below the cylinders. The fountainis removably supported by afountain cradle and carriage provided with-electrical heating elements for heating a supply of wax carbon within the fountain, the faction being regulated by a pyrometer having a thermal couple positioned centrally of the fountain.

Ajack mechanism is provided for raising the fountain to a desired elevation and for lowering the cradle and fountain to a level permitting the fountain pan to be bodily removed from the cradle. 'Vibrating gauge rollers are mounted in association with the fountain and transfer rollers for regulatingthe 'film of wax carbon delivered thereby. Provision is made for adjusting the degree of Contact between the various rollers and cylinders, and throw-out mechanism is provided in connection with the adjusting means for some of the rollers,so that they may be moved to an inoperative position without disturbing a fine adjustment effective when the rollers are in operative engagement with associated rollers or cylinders. Asfthe web is moved from the printing and impression cylinders, it is passed .over temperature regulating units by which 'the'film of wax ca'rb'onis converted to a desired condition on the web, said units including a primary chillingcylinder and a secondary chilling tank movable to and from operable engagement withthe we'b after it leavestheprimary chilling cylinder for use'whendesired. Secondaryheating meansis provided for directing radiant "heatonto the web as'it moves from the printing cylinder 'to the chilling cylinder, said heating means being movable between'operative and inoperative positions, and being provided with means defining'the range of'move'ment and c'o'ntrolling the supply of radiant heat.

The mechanism of the present invention preferably forms one'unit 'in a series of press mechanisms 'fo'rperforming successive printing operations upon continuously movingwebs; and the cylindersand rollers of the unit are geared to each other and to a main drive for'operation in timed relation to each other and to other associated units. 'Separate 'drive mechanism 'is provided 'foroperat- 'ing 'the printing cylinder and the fountain and transfer rollers during setting up and cleaning up operations, clutch "means being provided for automatically disconnecti'ng the 'main drive mechanism when the auxiliary drive is connected, and for disconnecting the auxiliary drive when the main drive mechanism is in operation.

In terms of greater detail, the device of the present invent'ion'comprises a pair of side plates'l forming a main frame and 'uponwhich are operatively mounted a printing cylinder 2 and an impression cylinder'ia. Between the printing and impression cylinders is fed a continuous web 4 of paper-or other suitable material. The 'web 4 isfed to the unit betweenapair of feed rollers '5 and 6, "and over a -dfive roller 7 extending between the frame plates "1 parallel -to'the printing and impression cylinders.

From the printing and impressioncylin'ders "Z'a'ndS, the Web 4passes over a chilling cylinder 8 "and thence 'toatdriv'e' rdller 9. 'The-w'eby l is then'directed over "an "idler r'o'ller itllfthen upwardly past an illuminating means 1 to a =g ii'de roller 12, and "thence on to other mechan'istn for afurther treatment, by other units arranged and operated 'in {a manner not here important.

'Wax carbon is "transferred onto the printing "cylinder '2 by a transfer roller 13 operating in contact with a fountainirolle'r I4. Forpurposes of the present applica- -tion, the 'p'rintin'g cylinder 2 is -regarded as including printing plates "applied thereto in "accordance with -co'nvent'r'on'al Ipractice. Reference to the transfer 'of wax carbonto the printing cylinder, ther'efo're, c'ontemplates the transfenof wax:carbon'to the printing areas of plates attached to the printing cylinder for applying the -wax to Patented June .1958- v in general by the numeral 18.

the web 4 over predetermined areas of desired pattern and design.

The lower portion of the fountain roller 14 extends into a supply 16 of wax carbon contained within a fountain pan 17 resting on a fountain cradle designated The fountain cradle 18 comprises a box-like frame having a recessed body into which the fountain pan 17 is closely fitted. A plurality of electric heating elements 19 are mounted within the cradle 18 in contact with the bottom lining of the cradle upon which the fountain pan 17 is seated. The heating elements'extend entirely across the cradle 18 and project from one end thereof to receive terminals 20 through which the conductors may be connected to a source of electrical energy. A pyrometer controlmechanism of conventional character, designated in general by the numeral 21, is mounted in connection with the heating elements 19, the pyrometer including a thermal couple substantially centrally positioned with respect to the cradle 18 and fountain pan 17. Suitable heat insulating material 15 is provided in the cradle 18 to shield the bottom and sides of the cradle from excessive heat from the heating elements 19.

The cradle 18 rests upon a movable carriage frame which includes a supporting platform 22, positioned below the printing cylinder 2 and the fountain and transfer rollers 13 and 14, as best shown in Figure 1 of the drawings. The cradle is raised and lowered vertically along guides 23 at the sides of the carriage frame by means of a jack mechanism comprising a horizontally disposed screw 24 on which are threaded collars 26 provided with pivot pins 27 pivotally engaging the adjacent ends of

links

28 and 29. The links 28 are pivoted to rails 30 secured to the underside of the supporting platform 22. The links 29 are pivotally connected at their lower ends to rails 31 secured to cross frame members 32. Opposing

links

33 and 34 are pivoted to the upper and lower rails 30 and 31 in opposing relation to the

links

28 and 29, and to collars 35 rotatably engaging the screw 24. The collars 35 are held against axial movement along the screw by a collar or end cap 36 secured to the screw. The screw 24 is actuated by means of a shaft 39 journalled in a bracket 37 secured to the guide 23 on which the fountain cradle is mounted. A hand wheel 41 is secured to the outer end of the actuating shaft 39, and the inner end of the shaft 39 is connected to the screw 24 by a toggle link 42. Rotation of the screw 24 by the shaft 39 and hand wheel 41 causes the sleeves 26 to be moved axially along the screw, thereby moving the

links

28 and 29 to raise or lower the platform 22 on which the fountain cradle is supported.

The jack mechanism provides means for readily adjusting the fountain cradle and fountain pan to a desired elevation relative to the fountain roller 14, the level of the pan being readily adjustable to compensate for variation in the level of the supply 16 as it is used up or replenished. Also, the jack mechanism permits the cradle to be lowered suificiently to move the fountain pan entirely clear of the fountain roller, and to permit the pan to be bodily removed.

To facilitate the removal of the fountain pan, the

frame on which the fountain cradle is vertically adjustable, including the guides 23, is secured to rails 44 which are slidably movable along channel-shaped guides 45 secured to the stationary frame 1. When the fountain pan is in its lowered position, the carriage frame may be moved bodily outwardly along the guides 45 sufliciently to permit the fountain pan to 'be lifted bodily out of the fountain cradle. Preferably, clamps 47 are mounted as at 46 upon the sides of the carriage frame for securing the fountain pan in its operative position upon the cradle in firmly seated engagement with the heated bottom of the cradle. Also, the pan is preferably provided with a plurality of handles 48 by which the pan may be lifted from the cradle as. desired. Pins 49,

engaging registering apertures in the guides 45 and rails 44, normally lock the carriage frame in its operating position.

Provision is made for the adjustment of the printing cylinder 2 relative to the impression cylinder 3 and the transfer roller 13, and also for the adjustment of the fountain roller 14 relative to the transfer roller 13. In the embodiment illustrated, the impression roller 3 is mounted for rotation about a fixed axis. The transfer roller 13 is also mounted for rotation upon a fixed axis. The axis of the printing roller 2 may be shifted relative to the axis of the impression roller, and by a separate adjustment it may also be shifted relative to the axis of the transfer roller 13. The mechanism for so shifting the printing roller 2 is best illustrated in Figures 3 and 6 of the drawings.

As illustrated, the printing cylinder 2 is journalled in a bearing 51 mounted within a sleeve 52 which in turn provides a bearing for arms 53 and 54.

The arm 53 extends from the sleeve 52 into engagement with an eccentric hub 56 secured upon a sleeve 57 which in turn is keyed or otherwise secured to a shaft 58. An adjusting lever 59 is keyed to the'shaft 58 upon the outer side of the frame 1. An adjusting screw 61 is threaded into a block 62 pivoted to the lever arm 59, and is journaled in a swivel bearing 65, carried by a. throwout arm 63 pivoted upon the frame 1, as at 64. The screw 61 is provided with a knob 66 by which the screw may be turned to actuate the adjusting lever 59 for turning the eccentric hub 56 within the arm 53 and thereby causing the arm to shift the printing cylinder radially relative to the impression cylinder.

Adjustment between the printing cylinder and the transfer roller is accomplished by means of an eccentric hub 67 mounted in connection with the bearing portion of the transfer cylinder by which the cylinder is mounted upon the frame 1, as best shown in Figure 6 of the drawings. The eccentric hub 67 is keyed or otherwise secured to a sleeve 68 turnably mounted within the frame plate 1 concentric with the journaled portion of the transfer roller. As illustrated, the bearing portion of the transfer roller is supported in a roller bearing 69 seated within the sleeve 68.

The adjusting arm 54 is pivotally movable upon the sleeve 52 in concentric relationship to the bearing portion of the printing cylinder 2. The other end of the adjusting arm 54 is pivotally movable upon the eccentric hub 67. Rotation of the eccentric hub 67 causes the printing cylinder to be moved toward or away from the transfer roll so as to obtain a desired degree of contact between the two. Movement of the eccentric 67 is accomplished by means of a gear 71 keyed to an inner concentric extension of the sleeve 68. A pinion 72 is keyed to an adjusting shaft 73 journaled upon the frame plate 1, the pinion being in meshing engagement with the gear 71. An adjusting lever 74 is secured to the shaft 73. An adjusting screw 75 is journaled upon a swivel hearing 76 preferably secured to a throwout lever 77. The adjusting screw 75 is threaded through a block 78 pivoted upon the arm 74. Rotation of the pinion 72 by means of the adjusting lever 74 and screw 75 causes the eccentric hub 67 to vary the degree of contact between the printing cylinder and the transfer roller. The adjusting screws 61 and 75 permit a very close adjustment of the printing cylinder with the impression cylinder and transfer roller. Either

throwout lever

63 or 77, or both, may be utilized to throw the printing cylinder out of its operative position to facilitate various adjustments without disturbing the fine adjustment obtainable by the screws 61 and 75.

The fountain roller 14 is journaled in journal boxes 81 slidably adjustable along guideways 82 provided on the frame plates 1. The blocks 81 are movable to adjust the fountain roller relative to the transfer roller 13. The blocks 81 are adjusted by means of lever arms 83 pivoted upon the frame 1 by pivots 84. The free end of each arm 83 rests upon an eccentric hub 86 secured to an adjusting shaft 87 provided with an adjusting arm 88. An adjustingscrew is journaled upon a swivel bearing 90 carried by a throwout lever arm 91. The screw 89 is threaded through a block 91 pivoted to the adjusting arm 88.

A gauge roller 94 is mounted adjacent to the fountain roller 14 for gauging the film of wax carbon carried by the fountain roller 14 to the transfer roller 13. The gauge roller 94 is preferably of the vibrating type having a short reciprocating movement axially of the roller. The roller 94 is carried by adjusting arms $5 pivoted upon the main frame 1 and adjusted by an adjusting screw 97 threaded into a block 98 pivotally connected to the adjusting arm. The adjusting screw 97 is journaled in a swivel bearing 99 pivoted to the main frame 1. A knob 100 is secured to the adjusting screw to facilitate its operation for adjustingthe degree of contact between the vibrating gauge roller 94 and the fountain roller 14.

vA gauge roller 101 similar to the gauge roller 94, is mounted in association with the transfer roller 13 for gauging the film of wax carbon carried by the transfer roller from the fountain roller to the printing cylinder. The gauge roller 101 is carried by an adjusting arm 102 pivoted upon the frame as at 193 and adjustable by means of a screw 1% which engages a block 105 upon the adjusting arm .and a swivel bearing 106 pivoted upon the mainframe 1. A knob 107 is provided for actuatingthe screw to effect a close adjustment of the gauge "roller 101 relative to the transfer roller 13.

Heating means, preferably a pair of infra-red radiant heaters 110 are pivotally mounted upon the frame 1 at a point slightly below the path of the web '4 as it moves from the impression roller 3 to the chilling roller 8. The heating elements 11th are mounted for pivotal movement about pivots 111. The heating elements are movable from an operative position pointing directly upwardly against the under-surface of the web 4, as indicated in full lines in Figure 1 of the drawings, to downwardly pointed positions such as indicated in dotted lines in that figure.

The heating elements 110 are moved between their operative and inoperative positions by means of a motor .112, or other suitable driving means, connected to the pivot shaft 111 of one of the heaters by a chain 113.

The driven'heating element is connected to its companion heating element by means of a chain 114 mounted over sprockets 115 upon the pivot shafts 111. The motor 112 is connected into a circuit of conventional character, including a hand-operated control switch not shown, and also including limit switches 116 and 117 mounted upon the frame 1 and arranged to be engaged by an arm 118 secured to the pivot shaft 111 of one of the heating elements. The switches 116 and 117 are positioned to be engaged respectively by the arm 118 when the heating elements are moved to the operative position shown in full lines in Figure l and to the inoperative position shown in dotted lines. The number of heating elements 110 may of course be varied to suit the requirements for .presses of different size, or used for different types of service.

Supplementing the chilling roller 8, is provided a chilling tank 120 mounted upon the frame 1 between the chilling roller 8 and the drive roller 9. The tank 120 is adjustably positioned for movement between web-engaging and web-disengaging positions. As illustrated, the tank 120 is supported by means of mounting arms 121 pivoted to the frame 1 by means of pivot pins 122. The arms 121 are provided with slots 123 engaging pins 124 secured to the'ends of the tank 12%. Adjusting screws '125 are threaded through blocks 126 secured to the frame -4 so as to maintain contact with the tank over a desired portion of its upper surface. If desired, the tank 120 may 1 be moved to entirely disengage the web 14 either by'adjustment of the screws :0r by swinging the :supporting arms 12 1 pivotally about their pivot pins 122 to :suspend the tank below the'web 4 and completely out of engagement therewith.

As the web passes-over the drive roller h, the printed side, that is the side upon which the wax carbon has been imprinted, engages the surface of the driving roller 9. Notwithstanding the chilling action of the roller 8 and tank 120, a small amount of carbon may adhere to the surface of the driving roller 9 as the web passes over it. To remove such carbon, a scraper blade 129 is arranged to engage the surface of the roller 9 and remove the carbon deposited thereon. The blade may be mounted upon a cross rod 130, and is preferablyheld by gravity or spring action with sufficient pressure to insureiremoval of all carbon. A tray 131 is preferably mounted below the blade to catch carbon displaced .from the. roller9.

The illuminating element 11 is positioned immediately in back of an upwardly extending reach of the web 4 as it passes between guide rollers 1t) and .12. The illumination of the web is such as to facilitate inspection, while the machine is in operation, variations in the wax carbon film printed upon the web being readily observable when viewed against the illuminating means.

The printing cylinder 2 and impression cylinder 3, the fountain and transfer rollers, and the various driving rollers associated therewith, are geared together so that all may be driven in accurately timed relation from a common driving mechainsm. Gears, indicated in broken lines in'Figure 2 of the drawings, are mounted in association with the various cylinders and rollers, with idler gears 132 positioned at appropriate points'in the gear trains to drive the operating rollers and cylinders in the proper direction and at proper speed. For purposes of the present specification, the gear unit carried by each of the various cylinders and rollers, will be regarded as a part thereof, and will not be identified by a separate reference numeral.

As illustrated, the carbon printing unit of the present invention is normally driven, when inoperation, from a main drive shaft 135 through which power is supplied for driving the several unitswith which the wax carbon printing device of the present invention is associated. For purposes of illustration, Figure 2 shows a main drive shaft 135 extending longitudinally along a series of units, and connected by spur gears136 and 13-7 to a unit drive shaft 138. lVliter gears 139 and 140 connect the unit driving shaft 138 to a transverse drive shaft 141. A drive gear 142 carried by the shaft 141 meshes with the gear trains by which the various printing cylinders and associated rollers of the present invention are operatively geared together. A clutch 143is mounted in connection with the unit drive shaft 138 for connecting and disconnecting the unit from the main drive shaft 143 as desired.

Provision is made for operating the several cylinders and rollers of thecarbon wax printing unit independently of the main drive shaft 135. Such auxiliary driving mechanism is arranged to operate the unit at a reduced'rate of speed which may be controlled to obtain a step by step adjustment of the various rollers and printing and impression cylinders in preparation for a run, for making minor adjustments, and for cleanup operations. The auxiliary drive comprises a motor 145 appropriately connected to the transfer roller 13 by a drive chain 146 engaging a sprocket 147 carried by the transfer roller.

The auxiliary drive motor 145 is provided with a clutch 1 8 by whichit may be connected and disconnected for driving the chain 146 and transferroller 13.

The clutch M8 is actuated by means'of a'clutch lever 149 connected by a link 151 to the clutch lever 152 by which the clutch 143 is operated. The link 1531 connecting the

clutch levers

149 and 152 is arranged to cause the two clutches to beoperated together to automatically throw one of the driving connections out of operative engagement when either of the clutches is moved to effect driving connection with the gear trains of the unit.

In operation, the printing cylinder and impression cylinder and the fountain and transfer rollers are set up in accordance with ordinary printing practice. The web 4 is fed to the machine between the roller 5 and the driven roller 6 and thence over the driving roller 7 to the printing and impression rollers 2 and 3, respectively. Wax carbon is transferred from the supply 16 onto printing areas of printing plates attached to the printing cylinder 2 by transfer roller 13. The wax carbon supply 16 is heated to a desired temperature controlled by the pyrometer 21 for delivery from the fountain to the transfer roller 13. Preferably the transfer roller 13 and printing cylinder 2 are heated, as for example by steam introduced through

connections

156 and 157, respectively, to maintain the Wax carbon in a plastic condition suitable for printing upon the web. As the web leaves the printing cylinder 2, it is moved past the heating elements 110 which serve to maintain the wax carbon in a fiowable condition such as to insure a substantially uniform distribution and thickness of Wax carbon film over the printed areas of the web. In cases where the added heating effect of the heating elements 110 is not necessary, the heating elements may be swung downwardly to inoperative position, as indicated in broken lines in Fig. l of the drawings.

As the printed web passes over the chilling cylinder 8, the wax film carried by the web is chilled to prevent further flow. Where the wax carbon areas are large and where the wax carbon film is comparatively heavy, the further chilling resulting from contact with the chilling tank 120 is desirable to insure an effective setting of the wax carbon before the web reaches the drive roller 9. The web next travels upwardly past the inspection. light 11, and then over the idler roller 12 for further treatment in other units of the printing equipment.

In setting up the Wax carbon printing unit for a run, the clutches 143 and 148 are shifted to disconnect the main power drive and to cause the auxiliary drive motor 145 to be rendered operative. As the press is being prepared for a run, the degree of contact of the printing cylinder 2 with the impression cylinder 3 and the transfer roller 13 is accurately set by means of the adjusting screws and associated mechanism above described. Similarly, the fountain roller 14 and the

gauge rollers

94 and 101 are adjusted to control the film of wax carbon transferred to the printing cylinder. While driven by the motor 145, the press may be run at a slow speed, or it may be inched along until the various adjustments are effected. Thereafter the motor 145 is disconnected, and driving connection is made with the main drive through the clutch 143.

During operation, the electrically heated fountain may be accurately controlled by the pyrometer to maintain an adequate supply of wax carbon at 'a desired temperature for transfer and printing. The auxiliary heating element 110 and the auxiliary chilling tank 120 facilitate control of the operation to meet various requirements. and substantially Widen the range within Which the operation of the press may be varied.

After a run is completed, the fountain cradle and carriage may be lowered and moved outwardly from under the fountain roller so that the fountain and the several transfer rollers may be cleaned and prepared for another run with a minimum of time and effort.

Having thus described our invention, what we claim and desire to secure by Letters Patent is:

1. In a rotary press having printing and impression cylinders operable for printing wax carbon onto a continuous moving web, a fountain cradle, a fountain removably supported by the cradle for containing a supply of wax carbon, thermostatically controlled heating elements mounted upon the cradle for heating wax carbon contained in the fountain, a jack adjustably supporting the cradle at a desired elevation and operable to adjust the cradle to maintain the proper degree of contact between said wax carbon and the fountain roller and further operable to lower the cradle to a fountain removing position, rollers mounted in association with the fountain for transferring wax carbon from the fountain onto the printing cylinder, means for adjusting the engagement of the rollers with each other and with the printing cylinder for controlling the film of wax carbon applied to the printing cylinder press, primary drive means for rotating the rollers in timed relation to the printing cylinder and other units of the press, secondary means for rotating the rollers and printing cylinder independently of the primary drive means, and interconnected clutch means associated with the primary and secondary drive means for automatically disconnecting one drive when the other is connected to drive the rollers.

2. In a rotary press having printing and impression cylinders operable for printing wax carbon onto a continuous moving web, a Wax carbon supply fountain below the cylinders, a fountain roller adjustably mounted in association with the fountain, a transfer roller mounted upon a fixed axis between the fountain roller and the printing roller, means for adjusting the degree of contact of the printing cylinder with the impression cylinder, separate means for adjusting the degree of contact of the printing cylinder with the transfer cylinder, said separate adjusting means comprising eccentrics journalled in connection with the transfer roller, links journalled at one end upon the eccentrics and journalled at the other concentrically with the printing cylinder, gears concentric with the transfer roller keyed to the eccentrics and meshing with gears keyed to the printing cylinder, an adjusting arm, gear actuating means carried by the adjusting arm and meshing with the gears keyed to the eccentrics, means for pivotally moving the adjusting arm, and a throw-out mounted in association with at least one of said adjusting means.

3. A rotary web fed press of the class described comprising printing and impression cylinders adapted to print wax carbon spots on a web fed therebetween, means receiving the web from the cylinders for chilling the wax carbon spots on said web, said means including a cold water tank against and across which the web is arranged to travel, and a cold Water cylinder disposed in advance of the tank and over which the web is passed, and heating means between the impression and printing cylinders and the chilling means for applying heat to the wax carbon spots before they reach the chilling means.

4. A rotary web fed press of the class described comprising printing and impression cylinders adapted to print wax carbon spots on a web fed therebetween, means receiving the web from the cylinders for chilling the wax carbon spots on said web, said means including a cold water tank against and across which the web is arranged to travel, and a cold water cylinder disposed in advance of the tank and over which the web is passed, heating means between the impression and printing cylinders and the chilling means for applying heat to the wax carbon spots before they reach the chilling means, and illuminating means disposed closely adjacent the path of travel of the web to enable visual inspection of the wax carbon spots.

5. A rotary web fed press of the class described comprising printing and impression cylinders adapted to print wax carbon spots on a web fed therebetween, means receiving the web from the cylinders for chilling the wax carbon spots on said web, said means including a cold Water tank against and across which the web is arranged to travel, heating means between the printing and impression cylinders and the cooling means for heating the wax carbon spots, means for selectively directing the heating means toward or away from the web, the last-named means including at least one heating lamp mounted for swinging movement toward and away from the web, an electric motor for swinging the lamp, limit switches connected in the motor circuit and disposed in spaced relation adjacent the path of travel of the lamp, and a switch actuator movable in unison with the lamp and adapted to selectively engage switches to de-energize the motor.

References Cited in the file of this patent UNITED STATES PATENTS How Sept. 22, 1903 Carter May 25, 1915 Coates Oct. 11, 1921 Anderson Nov. 21, 1890 15 10 Rutkoskie Dec. 25, 1934 Rutkoskie July 6, 1937 Miller May 10, 1938 Foster et al May 16, 1939 Williams et a1 Apr. 22, 1941 Person Aug. 15, 1944 LaHatte et a1. Ian. 2, 1945 Erickson Aug. 28, 1947 Belk Aug. 22, 1950 Miller May 1, 1951 McWhorter Oct. 14, 1952 Weber et a1. Mar. 10, 1953 Zonner July 14, 1953 Burke Apr. 6, 1954 FOREIGN PATENTS Austria Dec. 10, 1910