US1873235A - Inking mechanism - Google Patents

Description

Ai1g.23, 1932. H. A. w. WOOD 7 ,INKING MECHANISM Qriginal Filed May 26 1926 5 Shets-Sheet l Aug. 23, 1932. H. A. w. WOOD INKING MECHANISM Original Filed May 26, 1926 5 Sheets-Sheet 2 3574a 4 Ware ,3 ADJ-114 Aug. 23,1932. H. A. w. WOOD INKING MECHANISM Original Filed May 26, 1926 5 Sheets-Sheet 3 Aug. 23, 1932. r H.. A. w. WOOD INKING MECHANISM Original Filed May 26, 1926 f 5 Sheets-Sheet 4 Aug. 23, 1932. H. A. w. WOOD 1,873,235

INKING MECHANISM Original Filed May 26, 1926 5 Sheets-Sheet 5 Patented Aug. 23, 1932 UNITED STATES PATENT OFFICE HENRY A. WISE WOOD, OF NEW YORK, N. Y., ASSIGNOR TO WOOD NEWSPAPER MACHIN- ERY CORPORATION, OF NEW YORK, N. Y., A CORPORATION OF VIRGINIA mxme mncnamsm Original application filed may 26, 1926, Serial No. 111,787. Divided and this application filed April 6, 1929. Serial No. 353,198.

This is a division of my application for patent, Serial No. 111,787, filed May 26, 1926, on a high speed printing press.

The chief objects of this invention are to provide the usual adjusting keys for controlling the supply of ink to the different columns that are fully accessible to the operator, constructed so that the blade is brought against the fountain roller by pushing it in and is withdrawn by yielding means when released, and means for operating and adjusting these blades in a very simple manner and in a convenient place readily accessible; to provlde means whereby the adjusting screws are arranged in proper alignment with the several columns or webs so that the operator can easily select the ones to be adjusted; to provide means whereby the speed of the fountain roller can be regulated readily to deliver ink, independently of the individual adjustment of the fountain keys and in such a way that the operator will not have to open every key on the device when he is changing from one kind of printing to another, as for example from ordinary newspaper work to half tone illustrations or letter press printing or vice versa; to provide an ink fountain which is absolutely protected against the possibility of ink leaking through; to provide the ink fountain in such a form that a plurality of kinds or grades of ink can be run in the press at the desired times without complicated and time-consuming changes; to provide a con-' venient means for adjusting the relation of the distributing roll with respect to the ink cylinder and also with respect to the pick-up roller without danger of these two adjustments interfering with each other, and so that each one can be made and set and will not be disturbed by the making of the other adjustment; to provide a simple and practicable means whereby the necessary variations of speed of the ink fountain roll for the purpose of controlling the amount of ink fed to the presscan be obtained; to provide an extremely simple means for preventing the fountain roll from carrying paper dust and bits of paper back into the ink; and to provide a novel way of combining the ecccntrically adjusted boxes and back-lash device as set forth Fig. 2 is a side view of a part of the inking mechanism on the left side of Fig. 1 showing the ink fountain in longitudinal section; ig. 3 is a fragmentary plan of the same; Fig. 4 is a sectional view of the blade. and its cooperating parts;

Fig. 5 is a rear view of one side of the ink fountain showing means for varying the speed of the fountain roll to control the supply of ink;

Fig. 6 is a sectional view on the line 66 of Fig. 5 on an enlarged scale;

Fig. 7 is a vertical central sectional view at the end of the fountain roll showing the method of supporting it in the ink fountain; Fig. 8 is a similar view of the bearing for the pick-up roll;

Fig. 9 is a sectional view of the bearing and magnetic brake for the ink cylinder shaft;

Fig. 10 is an end view of part of the inking apparatus on a large scale, showing the adjustment of the distributing roll relative to the pick-up roll and inking cylinder;

Fig. 11 is an end view of a detail, taken in the direction of the arrow .11 in Fig. 10, and

Fig. 12 is a side view, with parts in section,

of the adjusting rod shown in Fig. 10.

a vertical shaft 15 which is the driving shaft for the press unit. This shaft, through gearing 16, drives the printing couples. The two impression cylinders 17 are driven at the same rate in opposite directions and the plate cylinders 18 are driven therefrom at the same speed so that the web passes through one couple and up over a'nadjustable roller 19 is located directly over the fountain 70. In

this fountain is locatedthe fountain roll 71- as is well understood in this art; The pickup roll has on its shaft a spiralgear 72'which drivesacomplimentary gear 73 loose on a vertical shaft 74. Also mounted loosely on this shaft is a spur. gear 7 5. These gears are connected by speed, change backgears 76 and 77 and doubleclutch 78. On account of a difference in the speed ratios the shaft 74 can be driven at two different rates of speed by throwing the clutch in either direction. The box containing the speed change gears 73,7 6, 77 and7'5 is'clos'ed by a guard or door 87.

The clutch is operated by a handle 79 ,on the frame 14.*'. On the bottomof this vertical shaft. 74 there is a bevel gear 86 which drives the shaft of the ink fountainroll 71.

. There are two methods of driving ink fountain rolls, intermittently by aratchet and continuously. It is desired-tobe able to increase or decrease the relative. speed I of a fountain roll soas to increase'or decrease. the amount of ink fed to the press. ith

the ratchet motion this is done easily by altering the length of the throw and the ratchet lever to take more or less teeth. Where a fountain roll, however, is drivencontinuously there-has never "been any method used of changing its relative speed. This; required the printer to increase or decrease hls ink by readjusting his fountain screws.

which was a tedious and uncertain method of doing it,"and it was because of this annoyance' that continuously driven 'fountainfrolls have not been used before. By my method of employing change gears I amv enabled to effect the necessary variations of speed and so have at lastmade practical ously running fountain roll.

Thelower spiralgear 73 acts as. a worm' wheel receiving power from the'worm 72 on the end of the pick-up roller. When the clutch is raised it delivers power to the vertical shaft 74 at a higher speed so that no change is necessary for a change of speed and increase in the amount of ink, except to raise or lower the clutch. v

This change in speed of the fountain roller is provided for the jurpose of feeding more or less ink regardless of the individual adjustment of the fountain keys so as to provide for printing half tones or illustrations with this simple adjustment, for furnishing the continuadditional ink without opening each key on .on the end of the fountain roll shaft and out- .side the fountain. The ink fountain is made so that it cannot possibly permit ink to leak through. It-is madedifl'erent fromthe'ordinary ink fountain by reason of the fact that the shaft'of; theink fountain-roll does not extend [through the, wall of the fountain and thus furnish "a source of leakage, present even in 'thebest-machines heretofore, ,On' account 'of this shaft extending down, no

hearing has to be provided through the wall of the fountain, but the bearing is located entirely within the fountain proper. The ink fountain70 is provided with the full bear .ings 8O inside the fountain for supporting the shaft of the fountainvroll 71.; This is duplicated on-the other side and a gear which receives power from the pinion 186 is also shown. On one side .I have shown a guard 87*, which of course is also duplicated on the I .i other side, foravoiding the splashing ofink at theside. These guards are mounted on brackets-88 on the frame 14 of the press unit.

a series ofadjusting keys for the blade 90 for each column or other section ofthe page sci-that the ink feed for su'clia column or section can'be adjusted at will. These keys The ink fountain is provided as usual with have to be, made fully accessible tothe oper-- wardly, asindicated in Fig. 1 the blade must necessarily be placed within the confines of the press where it is not readily accessible atorJ When theink in a fountainfeeds up- 'l ordinarily. I have. provided certain novel features by which the bladec'an be adjusted from the front. I provide the flexible blade ;90 with a seriesof pins 91' which obviously "canbe pushed in tobrin'g the blade against the fountain roll at all points. I'also provide springs 91 for pulling the pins out when the pressure is'released. These parts have to be on the inner side of the inking device in the on a frame 89 pivoted at 89 so that they can be turned back for cleaning the blade.

In orderto operate the pins 91 from the outer sides of the press units, I provide a. series of levers 92 each having a long armand short arm and pivoted on a cross shaft 93. The short arms bear against the pins 91 individually. Guide plates 94 are provided for supporting the projecting ends of these pins. The long arms of the levers 92 are substantially horizontal and each one is supported by anadjusting screw 95. These adjusting screws extend upwardly from the pivot pins 96 by which they are connected with the arms press illustrated. These parts are mounted 92. The adjusting screws are arranged in two rows, each set being carried at the top by a cross bar 97 through which the screws pass. The screws are arranged alternately as 1nd1- cated in Fig. 3 so that each one can be readily reached by a pressman and operated. Each one is provided with a thumb nut 98 at the top for this purpose. These are accessible from the platform 2 through a trap door 99 located at the end of the ink fountain. This is lifted to expose the entire group of thumb nuts for adjusting purposes. It will be apparent that I maintain the advantages of having the fountain blades at the rear of the 5 fountain and atthe same time provide for their v I have located the adjustments of the otherwise inaccessible fountain blade in alignment with the separate columns for webs. This makes it extremely easy on the part of the operator to find the proper screw which he needs for adjusting the ink on any particular column.

In the fountain I employ a scraper 6 and screen 8. The cleaning blade 6 works against the ink fountain roll upon its returning side so as to prevent'it from carrying into the ink paper dust and bits of paper which have been brought down to it by the inking rollers.

The pickup roll 68 is provided with a shaft 100 extending through it, mounted in ball bearings 101, carried on the frame 14 in stationary position. This pickup roll has the gear 102 by which it is driven by a train of gears including the gear 103 on the shaft of the ink cylinder 66. The ink cylinder shaft 104 is also mounted in two sets of ball bearings 105 on the frame and another one on an outboard bearing 106. The gear 103 is located between the two bearings 105.

The shaft 104 is provided with a magnetic brake to bring the ink cylinder to a stop more quickly than has been possible heretofore. On the end of the shaft, and in fact of each heavy revolving member, a. disc 108 is provided fixed to a hub 109 keyed to the shaft. This cast iron disc revolves in close proximity to the field magnet 110 which is held stationary in the out-board bearing 106.

In Figs. 10, 11 and 12 the method of making certain adjustments in the inking mechanism is illustrated. In the frame 14 are two projections 111 to which are bolted brackets 112. The distributing roll 67 is supported bybearings in sockets 115 carried ad ustably by socket holders 113 centered on the shaft 104. The distributing roll has to run in contact with the ink cylinder 66 and the pickup roller 68 which are both mounted in stationary bearings. Two adjustments are provided for the distributing roller, one to adjust it radially with respect to the pick-up roll and the other radially with respect to the ink cylinder. These adj ustments are designed so that they will not interfere with each other. In other words, when one adjustment is made, the changing of the other adjustment will not change the first one. The socket holder 113 is supported around the ink cylinder journal at one end and by poppets and screws 114 carried by the brack ets 112 at the other. The operation of these screws will cause the distributing roll to move in acircumferential direction relative to the ink cylinder so that it can move toward or from the center of the pick-up roll.

The adjustment in the transverse direction is secured in the following way: The sockets 115 for supporting thedistributing roll are tapped in at their ends and a screw 116 inserted in each one. These screws are held from longitudinal motion by two pins 117 fixed on the frame between two flanges 118 on the screw. The screw is rotated by a socket adjusting rod 119 provided with a spiral gear 120 at its lower end meshing with a similar spiral gear 121 on the screw 116. The adjusting screw rod 119, as well as the screw 114, is provided with a square end and pin hole by which it can be operated easily by the pressman. The rotation of this adjusting rod 119 turns the screw 116 and moves the socket 115 with the socket holder 113 radially with respect tot-he ink cylinder. This adjustment does not interfere with the previous adjustment of the roller 67 into proper contact with the pick-up roll 68. The distributing rolls, or at least some of them, are reciprocated as usual by crank shafts 123.

It will be seen from what has been said so far that the keys for controlling the supply of ink to the different columns are not only fully accessible to the operator on both sides of the press, but that the blade is brought into contact with the fountain roller in a positive manner, operated from a convenient position and with the adjusting screws arranged in alignment with the several columns or webs to enable the pressman to select the right ones without trouble. Also the fountain roller can be speeded up very conveniently to supply additional ink without opening up each key.

Furthermore, at least twogrades of ink can be supplied and each one ready to be used at any time without making an complicated changes. The ink fountain is fully protected against the possibility of any ink leaking through to the web at any point. F urthermore, the magnetic brakes are provided for stopping the ink cylinder, at the same time as the press cylinders and thus bringing the press to a stop without the usual strains and danger of breaking the gears and also the web. The magnetic brake for one part of the device is combined in a novel way with the eccentrically constructed boxes and back lash device.

Although I have illustrated and descr1bed only-a single form of the inventlon I am aware of the fact that modifications can be made therein by any person skilled in the art without departing from the sco e of the mvention as expressed in the claims. Therefore, I do not wish to be limited in this respect but what I claim is 1. In an inking mechanism fora printing press, the combination with an ink cylinder,

distributing roll and pick-up roll, of a fountain located below the pick-up roll, a fountaln roll, gearing for driving the ink cylinder, d1s- 'tributing roll and pick-up roll from the press, a shaft extending down from the pick-up roll to the fountain, means for driving the last the named shaft from the pick-up roll, and a gear on the fountain roll driven by said shaft.

2. In aninking mechanism for a printing press, the combination with an ink cylinder,

distributing roll and pick-up roll, of a fountain located below the pick-up roll, a fountain roll, gearing fordriving the ink cylinder, distributing roll and pick-up roll from vthe press,'a vertical shaft extending down from pick-up roll to the fountain, means for driving said vertical shaft, said ink fountain having bearings inside. the fountain for the fountain roll, and a gear on the fountain'roll located inside the. fountain, for driving the fountain 'roll fromthe pick-up. roll through the vertical shaft, whereby the fountain does not have to'be perforated for its shaft or hearing.

.3. In an" inking mechanism for a printing press, the combination with an ink cylinder, distributing roll and pick-up roll, of a fountain located below, a vertical shaft, means for driving said vertical shaft, said ink fountain having bearings inside the fountain for the fountain roll, and a gear on the fountain roll located inside the fountain, for driving the fountain roll through the vertical shaft, whereby the fountain does not have to be perforated for its shaft or bearing.

4. In an inking device for a printing press, the combination with the pick-up roll, ink distributing cylinders, and gearing for driving the pick-up roll from the other cylinders,

said pick-up roll having a worm gear, a shaft having a gear thereon meshing with the worm gear for driving it and projecting down towa rd the top of the fountain, inside the end j I of thefountain, and a fountain roll in the fountain having its shaft located entirely within the fountain and having a gear thereon arranged to be driven by the first named shaft.

5. In an inking device for aprinting ress, I

the combination with the-pick-up roll',i distributing roll, ink cylinder, and circumferential gearing for driving the pick-up roll from the. other cylinders, said pick-up roll having a" worm gear on its shaft, a vertical shaft having a gear thereon meshing with the worm gear for driving it and projecting down toward the top of the fountain inside the end of the fountain, a fountain roll inthe fountain having its shaft locatedentirely within the fountain and havinga gear'thereon'arranged to be driven by said vertical shaft, a second gear on the vertical shaft, a clutch by which press, the combination with an ink ountain,

bearings located within the fountain, a fountain roll supported by said bearings, and means forrotating said fountain roll.

8. In an inking device fora printing press, the combination with a fountain and fountain roll, of a blade extending across the fountain roll, a series of pins engaging the blade for pressing it against the roll, yielding means for drawing the pins back, a separate lever for operating each ofsaid pins to press the blade against the roll, and means located at the outer side of the inking mechanism for in dividually adjusting and operating said levers. V o

1 9. In an inking device for a printing press,

- the combination with a fountain and fountain roll, of a. blade extending across the fountain roll, a series of pins engaging the blade for pressing it against the roll, yielding means for drawing the pins back, a separate lever for engaging each of sa1d pins for forcing it forward to apply pressure to the blade, and means located at the outer side of-the inking mechanism :for individually adjusting and \operating said levers, said means comprising a series of bell crank levers having their pivots in alignment at the side of the ink fountain on which the blade is located and below it and a long arm extending all the way under the ink fountain to the opposite side 10. In an inking device for a printing press, the combination with a fountain and I fountain roll, of a blade extending across the ink from the fountain fountain roll, a series of pins engaging the blade for pressing it against the roll, yielding means for drawing the pins back, a separate lever for engaging each of said pins for forcing it forward to apply pressure to the blade, and means located at the outer side of the inkin mechanism for individually adjusting an operating said levers.

11. In an inking device for a printing press, the combination with a fountain and fountain roll, of a blade extending across the fountain roll, a series of pins engaging the blade for pressing it against the roll, yielding means for drawing the pins back, a separate lever for engaging each of said pins for forcing it forward to apply pressure to the blade, a pair of bars extending across the ink fountain on the opposite side, said bars being perforated and having rods extending downwardly and connected with said levers for operating them individually, said rods being staggered to permit the operator to select the proper column for adjustment.

12. In an ink fountain, the combination with a fountain proper and a platform extending along the same on the accessible side having a trap door therein adjacent to the fountain by which the parts are made accessible, of a series of adjusting devices located under the trap door, a series of levers connected with said adjusting devices extending backwardly under the fountain to the opposite side, a blade on the opposite side, and means connected with said adjusting devices for positively applying pressure on the blade at points along the length thereof.

13. In an inking device for a printing press, the combination with an ink cylinder, of a pair of bearings therefor and an outboard bearing beyond one of them, means between the outboard bearing and the adj acent bearing for driving the cylinder, and a magnetic brake located in the space between the outboard bearing and the nearest of the first two bearings for stopping the ink cylinder when the motor stops, independently of the rest of the printing machine. I 14. In an inking mechanism, the combination with an ink fountain roll and a pick-up roll having a shaft, of a spiral gear on the pick-up roll shaft, a shaft, a loose gear on the second shaft meshing with the spiral gear, a spur gear loose on the second shaft, a s ur-gear and a spiral gear rotatable toget er and meshing with the second loose gear and with the first named gear respectively, constituting back gearing, a clutch for connectin either of the loose gears to the shaft on whic they run, and means for running the ink fountain roll from the second shaft.

' In testimony whereof I have hereunto affixed my signature.

HENRY A. WISE WOOD;

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