US1961829A - Printing press for producing wax carbon spots on sheets of paper - Google Patents

Description

1F O s T E E H s N O S T O P. s N O B R A C X A W G N I C U D o R P R o F S s E R P G N I T N I R P June 5, 1934- G. A. RUTKcDsKlL-zv ET AL Filed Jan. 1e, 193,3

l10 Sheets-Sheet l `INvlaN-ro m5 BY j i lQRNEY June 5, 1934.

PRINTING PRESS FOR PRODUCING WAX CARBON SPOTS ON SHEETS OF' PAPER Filed Jan. 18, 1935 10 Sl'xeetrs-Sheec,v 2

June 5, 1934.

G. A. RUTKOSKIE ET AL PRINTING PRESS FOR PRODUCING WAX CARBON SPOTS ON SHEETS. OF PAPER Filed Jan. 18, 1933 10 Sheets-Sheet 3 INVENTOR June 5, 1934. G, A. RUTKosKlE ET A1. 1,961,329

PRINTING PRESS FOR PRODUCING' WAX CARBON SPOTS ON SHEETS OF PAPER 1o sheets-'sheet 4 Filed Jan. 18, 1933 mm vl u a INVENTORS BY Ze,

AT RNEY June 5, 1934- G. A. RUTKOSKIE ET Al.

PRINTING PRESS FOR'PRODUCING WAX CARBON SPOTS ON SHEETS OF PAPER Filed Jan. 18, 193.15 10 Sheets-Sheet 5 ,F/G. a

FIG. l0.

INVENTORS a, BY QJQTOWEY June 5, 1934. G. A. RLITKQSKIEv Er AL 1,961,829

PRINTING'v PRESS FOR PRODUCING WAX CARBON SPOTS 0N SHEETS OF yPAPER Filed Jan. 18, 1933 10 Sheets-Sheet 7 FIG. f7.

June 5, 1934.` G. Ru'rKosKlE ETAL 9 2 8s R l E 6 P A 9 P l `F O S T E E H S N O S, T O P S N O B R A C X A W G N T... C U D O R P R O F S s E R P. G N I 4ml.A N I R P Filed Jan. 18, 1955 10 Sheets-Sheet 8 ma. Y f, u

June 5, 1934; G. A. UTKOSKIE E-r AL 1.961,829

PRINTING PRESS FOR PRODUCING WAX 'CARBON SPOTS ON SHEETS OF PAPER Filed Jan. 18, 1935 10 Sheets-Sheet 9 June 5, 1934- G. A., R-urKosKlE ET Al. 1,961,829

PRINTING PRESS FOR P'RODUCI-NC WAX CARBON SPOTS QN SHEETS OF PAPER.

Filed Jan. 18, 19s;5`

10 Sheets- Skiset 10 I INVENTo-S g g RNEY Patented June 5, 1934 UNITED STATES PRINTING PRESS FOR PBODUCING CARBON SPOTS N SHEETS OF PAPER George A. Rutkoskie and Nelson S. Welk, Athens, Ohio, assignors to The McBee Company, Athens, Ohio, a corporation of Ohio 16 Claims. (Cl. 10i-357) as the Kelly pressv is a well known article of commerce, we shall not describe all of the parts thereof, but the description will be confined to the new features produced by us and which constitute additions to. the press as manufactured l5 by the Kelly Press Company.

t As stated in the said patent,v it has been found that, owing to the lack of tack in the melted wax carbon, the rollers must be positively driven at the time that they contact or it is impos- 20 sible to secure a satisfactory spot carbon upon It has been found in practice that the paper.

when the rollers are rotated in the manner provided by the drive of the Kelly press, the centrifugal effect causes considerableV of the wax carbon to be thrown off onto other parts of the press and on to the heating elements entailing considerable cleaning work. An object of our invention is to provide means to overcome this objectionable feature.

It has been found in practice that if the direction of rotation of the ink fountain roller is reversed there is less likelihood of it throwing off any of the wax carbon. To obtain this result we reverse the drive for the'inking mechanism.

We do this by reversing the position of the cam shaft driving pinion upon its shaft .and shifting its position on the shaft, so that it meshes with .the teeth of the cam shaft bevel gear onl the opposite side of the bevel gear. We also 4o change the timing of the inking mechanism by shifting both the ink fountain roller cam and the ductor roller cam 180 on the cam shaft. 'I he result is to bring the ductor roller in contact with the ink fountain roller when the surface presented to the ductor roller is moving in the ductor roller -is moving in antupward direction. In order to do this it became necessary to l. mount the'ink fountain upside down and to make special brackets to hold itin the new position* Another object of our invention is to provide means for obtaining a more uniform temperature for the rollers than can be done where the heating elements are mounted adjacent the rollers. Y

It has also been .found that by locating the heating elementsvinside of the rollers that a more vuniform temperature can be obtained with more efficient results. Obviously-mounting the elements in the rollers necessitates the provision of means for conveying current tothe elements while they were being rotated. This was done by mounting commutators on one end, of the shaft which carry the elements and providing brushes to convey current thereto.

A further object of the invention is the provision of means to render-it impossible for there to be any cessation of rotation on the part of the vibrator, ductor and-,ink fountain rollers at the time of their contact for it has also been found that the utilization of toothed gears for the rotation of the ductor roller by means of such,

, gears on the vibrator and ink fountain roller will under certain circumstances, permit a slight cessation of rotation. We have found in practice that this can be entirely overcome by the provision of friction gears in the placeof spur gears. y

A further object of our invention is to provide means whereby it is possible to agitate the contents of the ink fountain and it has also been found desirable to provide manually operated means to agtate the contents of the ink fountain. Y

A further object of our invention is to provide improved adjustments for the ink fountain blade for in the new method of handling the wax carbon it has been found in practice that it is necessary to provide adjusting screws at very close intervals for the adjustment of the ink fountain blade, in order to secure a sufficiently fine adjustment to obtain a sharp edge for the strip of wax carbon compound.

` A further object of our invention is to provide a construction which will prevent the deposit of wax from the ink plate forit has also been found in practice that it is necessary to provide for the exclusionof the wax from various parts of the machine and we have been obliged to place blocks in the corners of the bed plate to keep the wax from dripping down from the ink plate.

A further' object of our invention is to provide means to render the electrical control much more sensitive for it has also been found that lthe thermo-couple will not act-with sunicient frequency to maintain uniform temperature, i. e. it is slow to respond with the result that the roll` ers reach toohigh a temperature before the current is cut oiI and then when it is cut off, the temperature drops too much before the current is again cut in. This necessitates the provision of means which are extremely sensitive for the purpose of controlling this heat. We have found by locating an element exterior to the elements in the rolls or other parts of the machine and placing a liquid heat responsive element in juxtaposition thereto that by regulating the spacing of the liquid heat responsive element from the element a very extreme degree of sensitiveness in control is obtainable and the rollers can be maintained at almost exactly uniform temperature. 'This is of'the utmost importance for the reason that if the heat is too great the wax will crystallize and will notbe operative. If it is too cold it will not carry on the rollers at all. In the patent referred to, the lock-up base has the heating elements located init.

A further object of the invention is to provide a construction by means of which the heating elements may be located in the bed plate instead of the lock-up base for we have found in practice that by locating the elements in the bed plate of the press that considerable loss of time is avoided in setting up the press for another Job.

Our means of accomplishing the foregoing ob- I jects may be more readily understood by having reference to the accompanying drawings which are hereunto annexed and made a part hereof, in which- Fig. 1 is a top or plan view of our invention applied to an ordinary automatic feed printing press;

Fig. 2 is a. perspective View showing the rollers, opened;

Fig. 3 is a perspective view with the rollers in position;

Fig. 4 is a view showing the gear side of the press showing the friction gear on the vibrator roller in contact with the friction gear on the ductor roller; o

Fig. 5 is a similar view showing the friction gear on the ductor roller in contact with the friction gear on the ink fountain roller;

Fig. 6 is an enlarged view partly in sectionshowing our manner of mounting the heating elements inthe rollers;

Fig. '7 is a bottom view of the bed plate partly broken away to show the manner of mounting the heating elements therein;

Fig. 8 is a view of the front end of the bed plate; .y

Fig. 9 is a side view;

Fig. 10 is an enlarged sectional view of the sliding contacts on line 10-10 in Fig. 9;

Fig. 11 is a detail view of the thermo-couple;

Fig. 12 is a fragmentary detailed view showing the mechanism used in order to reverse the direction of rotation of the ink roller and tochange the timing of the ductorroller;

Fig. 13 is an enlarged cross section taken on the line X-X in Fig. 1, showingthe ink fountain roller, ductor roller, vibrator roller,l distributing roller and one of the form rollers, the4 agitating device being omitted from the inkfountain;

Fig. 14 is a detail view of the agitating device vior the ink fountain;

Fig. 15 is adetail view of the adjusting mechanism for changing the heat control;

Fig. 16 is a detail view of the ink plate assembly showing the drip pan and gutters for directing excess carbon into the drip pan;

Fig. 17 is a fragmentary view of one side of the machine showing the commutators for conveying current of the heating elements in the rotating rollers;l

Fig. 18 is a wiring diagram;

Fig. 19 is a diagrammatic view of the back of the switch board, the machine being shown in more or less-diagrammatic manner; and

Fig. 20 is a fragmentary view showing the operating mechanism for rotating the ink fountain and for moving the ductor roller, the wiring being omitted for the sake of clearness.

Similar reference numerals refer to similar parts throughout the entire description.

As shown in the drawings, the type bed or bed plate 1 of the machine may have mounted thereon the usual lock-up base. The bed plate 1 is heated by a number of electric heating elements 3 clearly seen in Fig. 7. 'Ihey are mounted in sleeves which are inserted in apertures cast or drilled inthe ribs 4 on the inside of the bed plate 1, as clearly seen in Figs. 7 and 8. 'I'his construction makes it possible to change one of the elements by merely disconnecting the wiresat their extremities and drawing them out of the supporting ribs 4. Obviously this can be done without tearing down the machine at all. The wires lead to brushes 5 which engage contacts 6 and 7 mounted in suitable insulation 8 and carried by a channel 9. As clearly seen in the drawings the channel 9 extends completely over the contacts 6 and 7 so that they are amply protected from any excess or surplus carbon. 'I'he ink plate 10 is also heated by an electric element 11 which may also be connected to the sliding contacts 6 and 7. The carbon is placed in an ink fountain 12, the bottom of which is provided with two heating elements 13 and 14.

AA liquid heat responsive element 15 is mounted intermediate these heaters for the purpose of controlling the temperatures of the ink fountain 12. Inside of the ink fountain we mount an agitating device which comprises a rod 16 and a paddle 17, the rod extending through the end wall 18 of the ink'fountain 12 providing for manual operation of the agitating device as it has been found in practice that it is highly important that even though melted it is essential to the most satisfactory operation of the machine that the melted carbon be agitated at intermittent periods.

The upper part of the ink fountain is closed by a cover 19 in which is mounted the ink fountain blade 20. We have found it essential for the adjustment of this blade to provide a multiplicity of adjusting screws 21 at closely spaced intervals in an upwardly extending portion 22 of the cover 19 as it is quite impossible to secure the necessary adjustment of the ink fountain blade other-V ing roller 26 and in some cases this special conwise. An electric heating element 23 is mounted l l by having reference to Fig. 6 in which the roller is mounted upon shafts 29 which carry two col-- lars 30 and 31. 'Ihese collars have inwardly extending threadedl hubs 32 and 33 which are screwed into a cylinder 34. A hole is formed in one of the shafts29 through which the electric conductors 35 pass to the heating element 36 which is mounted inside of the cylinder 34. It will be apparent from an inspection of Fig. 6 that it is a comparatively simple matter in case it becomes necessary to renew the heating element 36 to unscrew one of the collars and quick and convenient access to the. heating elements is thus had. Below the ductor roller 25 We mount a liquid heat responsive element 37 to control the temperature of the rollers. The rotating heating elements are supplied with current through the medium of commutators 38 and 39 mounted upon the shafts which carry rollers 24 and 26.v

In some cases it may be found desirable to mount a heating'element 95 adjacent the xed or form roller 28. The commutator 38 is engaged by brushes 40 which are held against the segments by means of springs (not shown, in the usual or standard construction. The brushes are connected by means of electric conductors 41 to a suitable source of electrical supply (not shown) A similar set of brushes 42 are provided for the commutator 39, electrical conductors 43 serving to convey current thereto, the brushes 49 lare mounted upon a block 90 which is secured to the arm 91 by means of a bolt 92, this arm 91 being the standard equipment of the press for reciprocating the oscillating or vibrator roller.

As is well known the form rollers 27' and 28 are driven by a reciprocating rack 44, the teeth of which engage the gear 45 which meshes with the gear on the shaft of the distributing roller 27 which in turn meshes with the gear 46 mounted on the shaft of the roller 28.

As hereinbefore set forth, it has been found that there is no tack in the melted carbon. It is therefore absolutely Nessential that the rollers be rotating at the timeof contact. The ink fountain roller 24 is intermittently rotated through the medium of the ratchet wheel 47 and the pawl 48 which is operated by the standard mechanism furnished on the press for this purpose. It is well known, however, that the ductor roller depends upon the tackin the ink to rotate it when it is brought into contact .vith the ink fountain roller. We overcome this lack of tack by changing the timing of the ductor roller to the time of rotation of the ink fountain roller so that the ink fountain roller will be rotating at the time the ductor roller contacts it and then by mounting a friction gear 49"at the end of the shaft carrying the ink fountain roller 24, this-gear coming in contact with the gear 51 mounted on the end of the shaft carrying the ductor roller 25 operates to cause it to be rotated when the two rollers are brought in contact. The ductor roller then travels fromthe ink fountain roller to the oscillating or vibrator roller 26. Onthe shaft of this vibrator roller 26 we mount aA friction gear -50 as this vibrator roller 26 is rotated first in one direction and thenin the other by the spur gears which are actuated by the reciprocation of rack 44` on the press. It is obvious that contact of the friction gear 50 and 51 will bring about rotation of the ductor roller 25 so that there will be no plate 10.

diiculty in transferring the melted carbon from one roller to another. In the patent to Rutkoskie, hereinbefore referred to, he brings about this rotation -by means of spur gears. The teeth of4 the gear on the ductor roller being pointed so that it will be impossible for them to engage the top of the gears on either the ink fountain roller or the oscillating roller. We have found in practice, however, that a perfect form of gear for this purpose is a friction gear. We, therefore, form the gears 49 and 50 with V shaped peripheral grooves which are adapted to receive the friction gear 51 mounted on the shaft of the ductor roller.

In the usual construction. of a bed plate and `ink plate, openings are to be found at the corners of the bed plate adjacent the ink plate 10. We

have found it necessary to insert blocks 52 and '53 in these spaces which serves to prevent any surplus carbon from getting down onto the operating parts of the machine. At each end of the ink plate 12 we mount gutters 54 which lead to a drip pan 55 placed below and behind the ink This receives and e'ectually prevents any of the surplus carbon reaching any of the operating mechanism of the machine. Inthe wiring diagram, Fig. 18, liquid heat responsive elements l5 and 37 which consist of a hollow bulb and a tube filled with liquid are mounted adjacent the ink fountain 12 and the oscillatLg or vibrator roller 26. The bulbs are thus placed .where the heat is to be controlled, as the heat increases it causes the liquid in the bulb to expand, thus exerting the pressure on the thermometer controller 56 shown in Fig. 19. This pressure opens the relay circuit in the thermometer controller. When this circuit is opened it opens coils in the relay switch 57. 'I'he purpose of this coil is to hold the contact closed on the load cir-- cuit. This circuit leads to whatever part of the press that this particular bulb controls the heat in. A small lever 58 at the baseof the liquid heat responsive element controller 56 can be moved backwards orforward for lowering or increasing the heat. If moved to the left the liquid in the tube must go to a higher degree in order to exert enough pressure to break the contact. In order for the pressure to go to a high degree the elements are in contact longer. This holds the heat high adjacent the bulb. Moving the lever 58 in the opposite direction of course lowers the heat. There is no electric contact at any time with the liquid heat responsive element. The pyrometer 59 is in no way connected with the rest of the machine. It operates with and controls only the heat on the type bed. Practice has found it impossible to control this with a relay and bulb, for the reason that it would be necessary for the tube ofthe liquid heat responsive element to swing back and forth withA the type bed. This reciprocation would break the glass containing the` heat responsive element' in a very short time but with the pyrometer 59 connected by a flexible Wire 60 connected to a thermo couple 61 in the face of the type bed obviously it may swing back and forth with the travel of the type bed without breaking. 'I'he heat control on the side of the press and the manner in which it is connected to the heater mounted in the vibrating `roller is clearly seen in `the wiring diagram, Fig. 18. This thermometer 37 has no electrical connections of any kind. We have not found it necessary yto provide any heat control for-*the form rollers as we have found it is sufilcient to control the heat only in the more vital points of the press but we provide a heating element 63 which can be adjusted towards or away from the face of the roller until located in the position to afford the requisite amount of heat required. On the switch board We provide pilot lights 64, 65 and 66. These lights are connected so that one side of the circuit is connected through the load circuit in the relay switch. The other side is connected directly to the bus line. The light 65 which is usually a green light indicates when the type bed circuit is closed. The light 64 which is usually a red light shows when the circuit leading to -the fountain heating elements is closed and the other lights 66 indicates when the vibrating roller-circuit is closed. Single pole switches 67, 68, 69, l0 and 7l are provided in order tov disconnect any circuit on the machine and leave the rest connected. This enables the operator to test the circuits working on any onepart of the machine and will enable him to watch while the machine is in operation to see that everything is working properly. The relays do not control the heat. The thermometer bulb controls the heat. The main line switch 'I2- is provided to make or break the circuit leading to the electrical apparatus. Contacts 73, 74, and 75 close the circuit between the pyrometer and the relay switch which controls the type bed 1. The elements in the ink fountain are hooked in parallel to the circuit which leads through the feeder circuit back to the relay. They are all controlled by one bulb and one relay switch. In Fig. 15 we have shown our means for adjusting the control for the heater in the vibrating roller. It is mounted in a casing '76 and comprises a controller bulb 77 formed by a cylindrical glass tube containing a liquid susceptible of quick response to heat variations the position of which can be varied by a screw '78 which is provided with a nut 79 on the outside and a nut 80 on the inside of the casing 76. We have found in practice that by moving this bulb towards or away from the heating element 81 which is connected in parallel with the heater in the vibrating roller that it will respond much more quickly than is possible where a-thermo couple isemployed being much more sensitive and avoiding the lag which is found where the thermo couple is utilized for this purpose. This in practice has been found to enable the operator to maintain theA rollers at almost exactly uniform heat. In order to reverse the direction of rotation of the ink fountain roller so as to throw the wax up on itself instead of down into the machine, we have found it necessary to reverse the position of the cams 82 and 83 on the driving shaft 84 as clearly seen in Fig. 12. It is obvious that by reversing the position of these cams that the direction of rotation of the ink fountain roller is changed, the pawl 48 being mounted on the opposite side of the ratchet wheel 47. It also operates tochange the timingofY the ductor roller by causing `it to come in contact with thevibrator roller when running in the opposite direction from the standard press. Locating the pawl as shown in Fig. 20, also serves to turn the ink roller at a diiferent time so that it will be rotating when the'ductor roller touches it. The standard linkage 94 is provided to regulate the amount of rotation of the ink fountain roller. As shown in Eig.' 20 the ink fountain roller 24 is rotating at the time of contact with the ductor roller 25, this rotation being in such direction that the surface presented to the ductor roller is moving in a downward direction. When the ductor roller shifts to the position shown in dotted lines in Fig. 13, where it is in contact with the vibrator roller 26, the vibrator roller is rotating in such a direction that the surface presented to the ductor roller is moving in an upward direction.

Having described our invention what we regard as new and desire to secure by Letters Patent is:

1. In a printing press having an inkvfountain, an ink fountain roller, a rotating vibrating roller, a ductor roller adapted to intermittently contact the ink fountain roller and the vibrator roller, form rollers, shafts for said rollers, and mechanism for operating the press; a friction gear on the shafts of the vibrator roller, ink fountain roller and ductor roller, means to intermittently rotate the ink fountain roller in such a direction that the surface presented to the ductor roller moves in a downward direction, means to acuate said rst named means, whereby the ink fountain roller will be rotating when the ductor roller contacts the ink fountain roller, means for timing the contact of the ductor roll so that the Vsurface of the vibrator roller presented to the ductor roller is moving in an upward direction at the time the ductor roller contacts the vibrator roller.

2. In a printing pre'sshaving an inkv fountain, an ink fountain roller, a rotating vibrating roller, a ductor roller adapted to intermittently contact the ink fountain roller and the vibrator rollen-form rollers, shafts for said rollers, and mechanism for operating the press; a friction gear on the shafts of the, vibrator roller, ink fountain roller and ductor roller, means-to intermittently rotate the ink fountain roller in such a direction that. the surface presented to the ductor roller moves in a downward direction, means to actuate said first named means, whereby the ink fountain roller will be rotating when the duc'or roller contacts the ink fountain roller, means for timing the contact of the ductor'roller so that the surface ofz the vibrator roller presented to the ductor roller is moving in an upward direction at the time the ductor roller contacts the vibrator roller, electrically operated means to heat said ink fountain roller and said vibrator roller, and means to maintain said heating means at a predetermined temperature.

3. In a printing press having an ink fountain, an ink fountain roller, a rotating vibrating roller, a ductor roller adapted to intermittently contact the ink fountain roller and the vibrator roller, form rollers, shafts for said rollers, and mechanism for operating the press; electric heating elements in said ink fountain and vibrator rollers, a commutator on the shaft of each of said rollers, brushes for said commutators, electrical conductors to lead electric current to said brushes, a rocker arm which reciprocates said vibrator roller, and a block secured thereto. the brushes for the commutator of the vibrator shaft being mounted on said block.

4. In a printing press having an ink fountain, an ink fountain roller, a rotating vibrating roller, a ductor roller adapted to intermittently contact the ink fountain roller and the vibrator roller, form rollers, shafts for said rollers, and mechanism for operating the press; electric heating elements in said ink fountain and vibrator rollers, a commutator on -the shaft of the vibrator and ink fountain rollers, brushes for said commutators, and electrical conductors to lead electriccurrent to said brushes.

5. In a printing press having an ink fountain, an ink fountain roller, a rotating vibrating roller,

a ductor roller adapted to intermittently contact the ink fountain roller and the vibrator roller,

roller, is moving in an upward direction at thetime the ductor roller contacts the vibrator roller.

6. In a printing press having an ink fountain, an ink fountain roller, a relating vibrating roller, a ductor roller adapted to intermittently contact the ink fountain roller and the vibrator roller, form rollers, shafts for said rollers, and mechanism for operating the press; a cover for said ink fountain, an ink roller blade mounted therein,

a plurality of closely spaced adjusting screws for said blade, an electric heating element mounted in the top of said cover, and a plurality of electric heatingelements secured to the bottom of said ink fountain.

7. In a printing press having an ink fountain, an ink fountain roller, a rotating vibrating roller, a ductor roller adapted to intermittently contact the ink fountain roller and the vibrator roller,

I form rollers, shaflsfor said rollers, and mechanism for operating the press;- a cover for said ink fountain, an electric heating element mounted in the top of said cover, and a plurality of electric heating elements secured to the bottom of said ink fountain.

8. In a printing press having an ink fountain, an ink fountain roller, a rotating vibrating roller, a ductor roller adapted to intermittently contact the ink fountain roller and the vibratorl roller, lform rollers, shafts for said rollers, and mechanism for operating the press; a cover for said ink fountain, an electric heating element mounted in the top of said cover, a plurality of electric heating elements secured to the bottom of said ink fountain,` and a liquid. heat responsive `element mounted intermediate the last named heating element and connected to an electro-control device.

9. In a printing press having an ink fountain, an ink fountain roller, a rotating vibrating roller, a ductor roller adapted to intermittently contact the ink fountain roller and the vibrator roller, form rollers, shafts for said rollers, and mechanism for operating the press; a cover for said ink fountain, an electric heating element mounted in the top of said cover, a plurality of electric heating elements secured 1o the bottom of said ink f ountain, a manually operable agitating device in said fountain, and means to manipulate said device from the exterior of said fountain.

10. In a printing press having an ink fountain, an ink fountain roller, a rotating vibrating roller,

a ductor roller adapted to intermittently contact the ink fountain roller and the vibrator roller,

form rollers, shafts for said rollers, and mechanism for operating the press; electric heating l elements in said ink fountain and vibrator rollers,

a commutator on the shaft of each of said rollers,

4 brushes for said cemmutators, electrical conelement being connected to an electric current control device.

11. In a printing press having an ink fountain, an ink fountain roller, a rotatin'g'vibrating roller,

`a ductor roller adapted to intermittently contact the ink fountain roller and the vibrator roller, form rollers, shafts for said rollers, and mechanism for operating the press; a reciprocating type bed having 'a plurality of ribs on one side, there being a plurality of spaced apertures in said ribs, a plurality of cylindrical sleeves detachably mounted therein, electric heating elements insaid sleeves, a plurality of sliding contacts secured to said reciprocating type bed, brushes for said contacts, `and electrical conductors to carry current to said brushes.

12. In'a printing press having an ink fountain, v

an ink fountain roller, a rotating vibrating roller, a ductor roller adapted to intermittently Contact the ink fountain roller and .the vibrator roller,`

form rollers, shafts for said rollers, `and mechanism for operating the press; a type bed having a plurality of ribs on its under side, there being a plurality of apertures in said rib, a plurality of cylindrical sleeves detachably mounted in said apertures, electric heating elements mounted in` said sleeves, an ink plate secured to and moving with said type bed, electric heating elements in said ink plate, a thermo-couple mounted in said type bed, and a flexible electrical conductor connected to said thermo-couple.

13. In a printing press having an ink fountain, an ink fountain roller, a rotating vibrating roller, a ductor roller adapted to intermittently contact the ink fountain roller and the vibrator roller, form rollers, shafts for saidrollers, and mechanism for operating the press; electric heating elements in said ink fountain and vibrator rollers, a commutater on the shaft of each of said rollers, brushes for said commutators, electrical conducters to lead electric current to said brushes, and anrelectric heating element mounted adjacent said form rollers.

14. In a printing press having an ink fountain, an ink fountain roller, a rotating vibrating roller, a ductor roller adapted to intermittently contact the ink fountain roller and the vibrator roller,

form rollers, shafts for said rollers, and mecha.

nism for operating the press; a type bed having a plurality of ribs on its under side, there being a plurality of apertures in said rib, a plurality of cylindrical sleeves detachably mounted in said apertures, electric heating elements mounted in said sleeves, an ink plate secured to and moving with said type bed, electric heating elements in said ink plate, a thermo-couple mounted in said type bed, a flexible electrical conductor connected to said thermo-couple, a drip pan below said ink plate, and gutters at each end of the ink plate which lead to said drip pan.

15. In a printing press having an ink fountain, an ink fountain roller, a rotating vibrator roller, a ductor roller adapted to intermittently contact the ink fountain roller and the vibrator roller, `form rollers, shafts for said rollers, and mechanism for operating the press; a type bed having a plurality of ribs en its under side, there being a plurality of apertures in said rib, a plurality of cylindrical sleeves detachably mounted in said apertures, electric heating elements mounted in said sleeves, an ink plate secured to and moving with said type bed, electric heating elements in said ink plate, a thermo-couple mounted in said type bed, a flexible electrical conductor connected to said thermo-couple', and means to prevent surplus carbon dropping on the operating mechanism of the press.

16. In a printing press having an ink fountain, an ink fountain roller, a. rotating vibrator roller, a ductor roller 'adapted to intermittently contact the ink fountain roller and the vibrator roller, form rollers, shafts for said rollers, and mechanisrn for operating the press; a casing mounted below the ductor roller and between the ink fountain roller and the vibrator roller, an electroheating element therein, a. glass cylinder cony taining `a liquid heat responsive element, terminating in a bulb mounted in said casing adjacent said element, an eye bolt supporting one end of said glass cylinder, and means to adjust the position of said eye bolt whereby the glass cylinder can be moved towards or away from said element.

GEORGE A. RUTKOSKIE. NELSON S. WELK.

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