US2058511A - Method of printing wax spots of carbon on sheets of paper with a platen job press of the revolving disk type - Google Patents

Description

Oct. 27, 1936. RUTKQSKIE 2,058,511

METHOD OF PRINTING WAX SPOTS OF CARBON ON SH 5 OF PAPER WITH A PLATEN JOB PRESS OF THE REVOLVING 16, 1953 K TYPE Filed Dec. 7 Sheets-Sheet 1 FIG.

ATTORNEY ON SHEETS OF PAPER OLVING DISK E 5 7 ets-Sheet 2 Oct. 27, 1936. G. A. RUTK METHOD OF PRI ING WAX SPOTS OF WITH A PLA JOB PRESS O1" 1 Filed Deb OSKIE CARBON THE REV 16, 193

lNlaENT 343v 0U QEJ b3 lifTORNEY Oct. 27, 1936. UTKQSKIE 2,058,511 ME D OF PRINTING WAX CARBON ON EETS OF PAPER TH A PLAT JOB P s o HE REVOLVI DISK TYPE Filed Dec; 16, 1933 7 Sheets-Sheet 5 4 i FIG. 4.

l2 2 /0/6 1 I P V ,7 I I, :1 T Y I ;0000000000000" 9 7 W M. v ,7 28 I r 3 4 Q': f ,7 T 7 I 4 L I I 26 gmr 7 INVENTOR ATTORNEY Oct. 27, 1936. e. A. RUTKOSKIE 2,058,511v

METHOD OF PRINTING WAX SPOTS OF CARBON ON SHEETS OF PAPER WITH A PLATEN JOB PRESS OF THE REVOLVING DISK TYPE Filed Dec. 16, 1933 7 Sheets-Sheet 4 FIG. 6.

61w? EiYENOR E v 34% 1 W RNEY Oct. 27, 1936. G RUTKOSKlE 2,058,511

METHOD OF PRINTING WAX SPOTS OF CARBON 0N SHEETS OF PAPER WITH A PLATEN JOB PRESS OF THE REVOLVING DISK TYPE 1 Filed Dec. 16, 1933 7 Sheets-Sheet 5 FIG. 8.

FIG. 9.

FIG. IO.

\ 55 WVVVVVWM" 54 Oct. 27, 1936. RUTKOSKlE 2,058,511

METHOD OF PRINTING WAX SPOTS OF CARBON 0N SHEETS OF PAPER WITH A PLATEN JOB PRESS OF THE REVOLVING DISK TYPE Filed Dec. 16, 1933 '7 Sheets-Sheet 6 a'kwuma v ATTORNEY Oct. 27, 1936. G. A. RUTKOSKIE 2,058,511

METHOD OF PRINTING WAX SPOTS or CARBON ON SHEETS OF PAPER WITH A PLATEN JOB PRESS OF THE REVOLVING DISK TYPE Filed Dec. 16, 1933 7 Sheets-Sheet 7 FIG. l5.

' aw wwebm M a B N w a AT ORNEY Patented Oct. 27, 1936v I UNITED STATESPATENT. OFFICE MErnon or rnm'rmc wax sro'rs or cannon N snnn'rs or PAPER. wrrn A PLATEN JOB PRESS or THE nnvonvme DISK TYPE George A. Rutkoskie, Athens, Ohio, assignor to The McBee Company, Athens, Ohio, a corporation of Ohio Application December 16, 1933, Serial No. 702,678 1 Claim. (01. 91-68) ing disk, an ink fountain, a ductor roller, formor inking rollers and a vibrator roller, a vertical type bed and a platen to press the sheet of paper against the type bed when the platen, sheet of paper, and type bed are parallel to each other.

It has been found in practice there are a number of ways of carrying out my method without employing any specific type of apparatus. I have discovered that it is absolutely essential that the revolving disk be heated to a certain predetermined temperature and this heat must be continuously applied whether the disk is revolving or stationary as a slight variation in the temperature either above or below the predetermined point will effectually prevent a successful operation of the press and consequently proper carrying out the method.

I have further discovered that it is possible to accomplish this result in a number of ways.

I have also discovered, that it is absolutely essential that the form rollers and vibrator roller be rotated continuously from the time of theircontact with the ductor roller untilthey have passed over'the face of the type on the type bed.

In carrying out this step of my method, it has been discovered in practice that, there are other and different forms of apparatus for accomplishing this result which will carry out the step of cipal object of my method is to provide a series of steps which, if followed out, for example, with the standard type of job press having a revolving disk, it will be possible to produce successfully war: carbon spots on sheets of paper located at predetermined positions on the sheet of paper without reference to the specificform of apparatus employed. These steps consist in providing means to heat the revolving disk continuously whether it is revolving or not during the 0 operation ofthe press, providing means to heat the ink fountain roller, and the vibrator roller, to heat the type bed and to positively rotate the vibrator and form rollers continuously during the operation of the press and to bring a sheet of paper against the stationary type bed while main-- taining the paper, platen, and type bed parallel to each other.

In order to enable one to carry out my method, I have shown in the accompanying drawings a form of pressfor that purpose. It is to be understood that these drawings are furnished solely for the purpose of showing a concrete embodiment of an apparatus which will employ the varlto employ the steps of my method.

As shown in the drawings; Fig. 1 is a. perspective view of one side of the press;

Fig. 2 is an enlarged vertical sectional view of the ink fountain and the inking rollers, the oper-.

ating mechanism for the rollers being omitted for the sake ofcleamess;

Fig. 3 is a fragmentary perspective view of the upper part of the press showingimy improvement; 1

Fig. 4 is a detail view taken from the front of the fountain;

Fig. 5 is a fragmentary detail view showing the movement of the ductor roller;

Fig. 6 is a fragmentary detail view on the left hand side of the press showing the upper part of the press and the revolving disk and inking rollers;

Fig. 7 is an enlarged fragmentary detail view of the inking rollers showing the means for conveying current thereto;

Fig. 8 is a front. view of the type bed plate and a portion of the tracks forthe inking rollers;

Fig. 9 is a cross section taken on the line 9-9 in Fi 8; V V

Fig. 10 is a fragmentary the heating elements; I

Fig. 11 is a rear view of the revolving inking disk; Fig. 12 is a cross section' taken on the line l2-.-I2 in Fig. 11;

Fig. 13 is an enlarged fragmentary view;

Fig. 14 is an enlarged fragmentary detail view showing the manner of connecting the current to the heating elements on the revolving inking disk; and r Fig. 15 is a diagrammatic view showing the wiring diagram.

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

As shown in the drawings,- my improvement is detail view of one of shown as stated, on the well known Chandler and Price press, the details of which are so well understood in the trade that I shall not describe them but shall confine my description to such parts as I have added to adapt the press to produce wax carbon spots on sheets of paper.

It is well known thatin order to successfully print spots of wax carbon on sheets of paper it is not only necessary to melt the wax carbon in the ink fountain and to maintain it at a predetermined temperature, but all of the parts of the press which come in contact with the wax carbon must also be maintained at the correct temperature.

It has been found in practice that if this temperature varies either up or down beyond a certain predetermined degree the press will be inoperativ'e in so far as producing wax carbon spots which will transfer properly.

In order to accomplish this result, I provide an electric heater I for the ink fountain bed 2 which contains the melted wax carbon.

A heating element 3 is located in the ink fountain roller 4 so as to keep it at the desired temperature. As is well understood this roller 4' is intermittently rotated by means of a ratchet 5 and pawls 6 which are standard construction on the press. I extend the shaft I of this roller out be yond the ratchet wheel 5 on which I mount slip rings 8 and 9. These slip. rings are connected to the heating elements 3 mounted in the ink fountain and the roller and are engaged by brushes III and II carried by an arm I2 fastened to one side of the press. The brushes I0 and II are connected by means of electrical conductors I3 and I4 by a suitable source of electric current supply (not shown). These conductors I3 and I4 are preferably swinging lines.

The melted carbon is carried to the steel ductor roller I5 by means of an intermediate rubber roller I6 which rides the ink fountain roller 4 continually. This roller I6 is driven by means of a gear I! mounted on the end of its shaft. This gear I! meshes with a gear I8 mounted on the shaft of the fountain roller 4. Friction gears may, if desired, be substituted for the spur gears illustrated. I The melted carbon is delivered to the ductor roller by 'means of an intermediate roller l 6. The steel ductorroller I5 swings back and forth between the roller I6 shown as in Fig. 2 and the position indicated in the dotted lines in the same figure. While in the position shown in dotted lines in Fig. 2, the ductor roller I5 is brought in contactwith the upper one of the two form rollers I9 and 20 which at this time is nearing its extreme upward stroke. v

The rubber roller I9 takes its supply of melted carbon from the ductor roller I5 and on its downward stroke deposits this carbon on the revolv;

ing inking disk 2I where the carbon is evenly distributed by the intermittent revolutions of the inking disk 2 I As is understood by persons skilled in the art themovement of the inking plates 2| is brought about by beveled gears (not shown) in 'the well understood manner.

In'order to further facilitate the distribution and to insure that the carbon transferred is kept in amelted condition and at the proper temperature at all times, the rubber form rollers I9 and 20 are heated by a steel vibrator '22 whichcontains an electric heating element 30 mounted 'inside of the vibrator 22 whic'h getsfits siipply of current by the means of slip rings 24 andv 25'car- 'rie'd on the end 26 of the vibratorshaft, 1

These slip rings are arranged to contact with brushes 2! which receive their supply of electric current through conductors 28 and 29 which are flexible swinging lines and lead to a source of electric current supply. (not shown).

It has been found that there is not suflicient tack in the melted wax carbon to insure the rotation of the steel vibrator 22 solely by frictional contact with the rubber rollers I9 and 20. Therefore, in order to make this rotation positive, I place a gear 3I on-the end of the shaft of the roller 20 and a similar gear 32 on the shaft of the roller I9. These gears 3| and 32 mesh with a spur gear 33 put on the end of the shaft of the vibrator 22. It will be apparent from this that it is impossible for the rollers I9 and 20 to revolve without bringing about a revolution of the vibrator 22.

However, these rollers 2I and 22 are designed to be rotated by means of roller trucks 34 and 35 placed adjacent the ends of the roller I9 and corresponding roller trucks 36 and 3'! placed adjacent the ends of the roller 20. This does not necessarily insure positive rotation and there is considerable danger of there being a slippage of the trucks which, while not greatly objectionable in ordinary printing, would be absolutely fatal to the production of successful wax spot carboning. I have found in practice that this danger can be completely obviated by mounting on the face of each of the side frames 38 and 39 strips of leather 40 and 4| which are secured to the edge of the frames in any suitable or convenient manner, and are adapted to contact the roller trucks 34, 35, 36 and 31 with the result that I am able to obtain a positive turning of the rubber rollers I9 and 20.

Practice has shown that unless the ink plate is heated the moment that the carbon is delivered to it from the form roller I9, it will crystallize. I avoid this by providing a construction which permits me to maintain the revolving disk ink plate at any predetermined temperature. 1 accomplish this in the manner clearly shown in'Figs. 11 to 14 inclusive and in the wiring diagram; as shown in these views I provide two rings 42 and 43 which are preferably formed of brass or other suitable conducting material. These rings are mounted upon an annular strip of insulator 44 which is secured to the back of the revolving disk ink plate 2 I. These rings 42 and 43 are connected to annular electrical heating elements 45 and 46 by means of electrical conductors 41 and 48 in the conventional manner. Current is conveyed to the rings 42 and 43 by means'of brushes 49 and 5,0 of standard construction. These brushes are mountedin a support 5| which may be bolted or otherwise secured to the side frame 38 of the press. The brushes are connected to electrical conductors 52 and 53 which lead to a source of electric current supply (notshown).

The result of this construction is obvious. The

rotation of the revolving disk plate 2'I has no effect whatever on the-electrical connections. It is thus possible to convey the requisite amount of current to the heating elements 45 and 46 to maintain the revolving disk at any required tempera- Figs. 8 to 10, inc1lusive and, in thewiring diagram. .1 attain this result-by mounting a. plurality of heating elements 54 inthe type bed 55 and I also mounta thermocouple 5Bbetween the elements 54. This thermocouple is connected to pyrometer lead wires 51 and 58 which lead to a pyrometer of standard construction (not shown) for controlling the current supply (not shown).

Having thus fully and for illustrative p p ses described a concrete embodiment of an apparatus which will employ the various steps of my method what I regard as new and desire to secure by Letters Patent is:

In the process of producing spots of wax carbon upon sheets of paper with a platen press of the revolving inking disk type having an ink fountain, an ink fountain roller, a vibrator roller, a ductor roller, a stationary type bed and form rollers; maintaining at a predetermined temperature the inking fountain and vibrator rollers while they rotate. positively rotating the form rollers and vibrator roller from the time the ductor roller contacts the form roller until the form rollers deliver the melted wax carbon compound to the type, transferring the heated wax carbon from the fountain to the type by said rollers, applying the melted wax carbon to a sheet of paper from said stationary type bed, maintaining the paper, platen and type parallel to each other. maintaining the platen, type bed and revolving inking disk plate at a predetermined temperature, the heated elements being maintained at a temperature which will produce wax carbon spots which will transfer properly.

GEORGE A. RUTKOSKIE.

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