US1077882A

US1077882A - Ink-fountain for printing-presses.

Info

Publication number: US1077882A
Application number: US76268313A
Authority: US
Inventors: Edward F Holz
Original assignee: Individual
Current assignee: Individual
Priority date: 1913-04-21
Filing date: 1913-04-21
Publication date: 1913-11-04
Anticipated expiration: 1930-11-04

Description

B. P. HOLZ.

INK FOUNTAIN FOR PRINTING PRESSES.

APPLICATION FILED APR. 21, 1913.

1,077,882, Patented Nov. 4, 1913.

VI 227265565. I cfizmagZ 2 E. F. HOLZ.

INK FOUNTAIN ron PRINTING PRESSES.

APPLIOA'EION TILED APB-.21.,1913.

3 z m m a iiliILIIIIIIIIJII I I l I 5F CHZGAGQ, IT

HGLZ

lliz'lZ-EQUNTAIE PEETETEZL;

Applieatien filed. April 21 1813.

To all whom it may comer";

Be it known that I, EDNARD F. Hone eitizen. of the United States, residing Chicago, in thecounty of Geek and lb of Illinois, have invented certain new useful Improvements in Ink-Fountains fer 1 rinvingtresses', 0f which the following is it "ecification ilfi present invention relates to certain i. improvements in ink feunt ins for nrinting presses, and articularly rotary presses, eitheugh, as will presently appear, the invention is in no Wise limited in its epplicahih ity to the above.

Man-y forms of printing presses are provided with ink fountains or troughs from which the ink is fed by means of a. twin or series of reiiers until it is finally deposiied on the'printing form The first or fountain roller of this train is adapted to take the in irein ine fountain end transfer it to the next roller of the train. This fountain mlier may operate either cnntinncnsly or intermittently, and ins-y he pertially submerged in, or in Contact with, the ink of the foun tain at all times; or it may serve to Withdraw the ink from a groove or slit (if the fountain from time to time.

On account of t'ne fact that the ink ordinarily used is of high viscosity, and hardens iOIllQWl'ifit rapidly, particularly where it is xposed to. the atmosphere, it has been found that the ink will not naturally feed evenly and constantly up t0 t 1e first roller of the train 01' series. it is found that as the op erations continue, the ink tends t0 hold back or away from the first roller, so that in time said roller Will cease to Withdraw the proper amount of ink at each operetien'of the press, with the result that in time the printing will become uneven and consequently unsatisfactor-y. In order to meet this difliculty it is generally necessery for the pressman to carefully Watchthe fountein to see that the is properly feeding at all points throughout. its length and it is necessary for him to uniformly press the ink up against the said first roller from time to time:

I am aware of the feet that hereteiore certain. attempts have been made te evercerne the objections above outlined, but as far its i are aware, in the pestsueh attempts wheily er artzeliyer ssfni,

heen either ior yiew of {Lil in tons This fercing in up tc the inking roller 01)- ttently and net continuously,

er else such de ice wes built in and constructed e permanentportion er structure of the fountain: Censcqnentiy the latter ceuid be easily d thoroughly cleared frem time to tin in order to keep the press in prnper must he done when it 118st! enge the eeier or uality of the ink.

The main objects of the present invention are to prcvide mechanisms or devices fer autoinnticully feeding theink up to the first roller of the series or train such devices being epernted continuously from a suitable moving part of the press or otherwise. With such an arrangement the stirring up of the ink in the fountain, and its advancement toward the first roller, wil nroceed uniformly, therebygreatly iinpre ink feed, and at the Sim? time the ink itself in better eon.

Another ob to so construct the in rementiened niecha nisin er device that it can be readily and easily remeved from the fcaim's'iiiri thereby making it pessihle to mere easily and theroughly clean ens n and "mseeieted parts, and suppiyrg an incentive to the pressman to keen his in better condi tioe.

(Ether objects and s i detailed description consists in the combinations 0; and claimed.

In the drawings ili appear from a. vention which n and embed of a. train, the fountain he one form of device ai of the present nterim L farm, 2 poll-11211 L-ilc, i;

2-- 3 :31? Fig 1 the arrows; on line i of iresent inventienis image-2 moved by tlii withdrawal of a retaining pin;

' and Fig. 7 is a detail perspective of one of describe in detail the particular fountain illustrated.

In the particular construction illustrated the first roller of the train is designated by the numeral 9. As herein illustrated it occupies a position across-one side of the fountain so that the ink 10 stands against the roller, whereby as the latter is rotated it will withdraw the desired amount of ink upon its periphery. The roller is adapted to rotate in the direction illustrated b the arrows in Figs. 2 and 5 so that the ink is withdrawn from the bottom portion of the fountain. In order to control the amount of ink thus withdrawn there is provided a flexible plate 10 which extends along the fountain immediately beneath the roller and the position of which can be accurately adjusted by means of screws 11. These set screws serve to determine the amount of clearance between the plate and the roller. As'the roller is rotated either intermittently or continuously it tends to pull the ink down toward the bottom of the fountain so that in time the area or contact between the ink and the roller will be reduced, and in fact may entirely cease in time. In order to overcome this difiiculty I have provided means for constantly pressing or forcing the ink of the fountain up toward and against the roller, at all points throughout its length, thus removing the pressman of the necessity of watching the ink feed, and at the same time constantly stirring up or I kneading the ink so that it will remain at all times of uniform consistency and quality throughout its mass. For the sake of convenience I shall hereinafter designate the aforementioned pressing or forcing means as a pressing or agitating device.

In the arrangement shown in Figs. 1, 2, and 3 the pressing or agitating device takes the form of a zig-zag bar 12 which extends across the length of the fountain and is so mounted that as it is rotated its projecting arms will be forced down into the ink, and then across the fountain to carry the ink toward the ink roller. Thus the bar serves the two functions of stirring up the'ink and of carrying it over against the roller. This bar preferably rotates in the direction illustrated by the arrows in Fig.- 2, that is, its projections travel toward the roller during the lower half of their rotation. When so rotated any given arm will enter the ink approximately at the 1 nt 13, and, after sweeping through the ink and toward the roller, will en erge approximately at the point 14. From this it will be seen that a very effectual agitation and stirring up of the ink will ensue as well as an effectual transfer of the ink toward the roller. This zig-zag bar finds bearings at the two ends of the fountain, and is so mounted that it can be readily removed. For this purpose there is provided a short or stub shaft 15 which extends through the end wall 16 of the fountain, being held in place by means of a pair of

collars

17 and 18 which have the set screws 19, and said stub shaft carries the pulley 20 by which it may be continuously driven from any suitable point. The

inner end 21 of this stub shaft preferably terminates at a point close to the end wall 16, and it is provided with an angular socket or hole for the reception of the end 22 of the agitator bar. As shown in Fig. 3 this socket in the particular arrangement illustrated, but of course any other form might be adopted, it being simply necessary that a driving connection shall be established between the stub shaft and the bar. Obviously the end 22 of the bar may be withdrawn from the stub shaft by allowing the bar to move away endwise therefrom. For this purpose I have provided a socketbearing at the other end of the fountain. Said bearing preferably takes the form of a threaded spindle 23 which is extended through the end wall 24 of the fountain, and is provided with the milled head 25 whereby it may be easily rotated. A set screw 26 may be provided for locking the spindle in position. This spindle is preferably provided with a bearing socket for the reception of the end 27 of the agitator bar so that the latter may easily rotate while held properly centered and in position.

It will be noted from examination of Fig. 1 that the end 27 of the zig-zag bar tenniis squared nates at a point within the end. wall 24.

Therefore as soon as the spindle 23 has been threaded back flush with the end wall the end 27 of the bar can be raised up above the wall to permit the bar to be withdrawn endwise from the socket of the stub shaft 15. It is preferred that washers or the like 28 be interposed between the collar 17 and the end wall 16 for the purpose of effectually preventing the acc'ess of ink to the bearing within which the stub shaft 15 rotates.

The arrangement shown in Figs. 4, 5, 6, and 7 is similar to that just described in that in this case also the agitator is adapted to be rotated continuously, and in that it is so constructed that it can be readily removed, or at any rate removed to such an extent that it can be readily cleaned and so that the fountain can also be readily cleaned. In the present case a transversally extending shaft 'madc to brea 29 finds bearings in the

end walls

16 and 24, collais or the like 30 being provided for properly centering the shaft and prevcntin any end movement. This shaft is provide throughout its length with transversally extending slots or openings into which may be inserted a series of paddles or the like which, as shown in Fig. 5, will work down into the ink of the fountain to keep it properly :--l.lI"I(,tl up, and to carry it over against the inking roll. In the particular arrangement illustrated, U-bars 31 are shown as bein extended through the openings of the siaft but it will be understood that other forms of paddle or bar might be substituted if desired,

For the purpose of holding all of the pad- (llcs in position on the shaft 29, I have provided a removable rod 32 which can be extended throughout the length of said shaft, passing through holes or openings 33 in each of the paddles, so as to prevent the said paddles from becoming displaced with respect to the shaft. This rod 32 is preferably provided with u milled head 34 and with a threaded end portion 35 which is adapted to lhrcad into the end of the shaft. 29 so that when it is desired to lock the paddles in position, the rod may be shoved in until the threaded portion 35 reaches the end of the shaft, whereupon the portioir 35 may be threaded up to lock the rod in position; In the present case also a pulle 20 is provided .svl ereby the agitator may continuously rotated.

It will be noted from an examination of Figs. 1 and 4 that in each of the constructions therein disclosed the agitator and presser shaft is substantially in line with' the upper portion of the roller. B so relating the parts the addles of the agitator can be if throu h the surface of the ink contained in the fountain to effectually knead or mix the same and at the same time, by rotating the a itator in the direction previously mentione the ink will be effectually curriedover against the roller.

I wish to call particular attention to the fact that in each of the constructions herein illustrated I have. provided means for mintinuously rotating the agitator as distinguished from means for providing an intermittcnt rotation. I am familiar with certain forms of construction in which an intermittent rotation is secured, but as previously pointed out such a rotation presents the serious disadvantage that it does not serve to carry the ink up against the roller uniforml nor does itserve to keep the ink properiy stirred u or kneaded as it were, to maintain it of uni orm viscosity and quality throu hout its mass. I wish also to call iarticu ar attention to the fact that in each 0 the herein described and illustrated constructions the agitator and Presser is either removable in its entirety, or else it is removable to the extent that the paddles or other projections which would seriously interfere with a cleansing operation are removable, so that in either case the ink fountain and the ciated parts or elements can be readily cleaned notwithstanding the provision of the improvements of the present invention.

I claim:

1. In a device of the class described, the combination with an ink fountain and an inking roller adapted to receive ink from the same, of a rotatable device mounted within the fountain, a plurality of sidewise projeding extensions on the sameadapted to agitate the ink within the fountain and to carry the same toward the inking roller, and means for rotating said member in a direction to carry said projections toward the inking roller when t iey are. in the lower rtion of their circular travel, substantial y as described.

2. In a device of the class described, the combination with an ink fountain and an inking roller adapted to receive ink from the same, of a rotatablemember having its axis of rotation substantially on a level with the u per )ortion of the inking roller, a plura ity of sidewise projectin extensions on the said member 'adapte to break through the surface of the ink in the fountain when the member is rotated for the pur ose of maintaining the ink in uniform con ition throughout its mass, and means for continuously rotating said member in a direction to carry said projections toward the inkin" roller when they are in the lower portion 0 their circular travel for the purpose of continuously agitating the ink and carrying the same toward the inking roller, substantially as described.

3.. In a device of the class described, the combination with an ink fountain and an inking roller adapted to receive ink from the same, of a stub shaft mounted in one wall of the fountain, a driving element mounted on the stub shaft there being a driving socket on the inner end of the stub shaft, a socket bearing mounted in the opposite wall of the fountain and a rotatable device having one nd mounted in the driving socket 0f the stub shaft and having its otier end mounted in the socket bearing. said rotatable device having a plurality of sidewise projecting extensions adapted to carry ink contained in the fountain toward the inking roller, substantially as descrilxsd.

4. In a device of the class described, the combination with an ink fountain and an inking roll adapted to receive the ink therefrom of a stub shaft carried by one wall of the fountain, a driving element mounted on the stub shaft, there being a driving socket on the inner end of the stub shaft, a threaded stud carried by the op msite Wail of the fountain, and a rotatable ri evice haw III) ing one and inserted in the socket of the stub shaft and the other end inserted in the socket of the stud, said rotatable device having a plurality of sidewise projecting extensions adapted to carry ink contained in the fountain toward the inking roller, substantially as described.

5. In a device of the class described the combination with an ink fountain an an inking roller ada ted to receive ink therefrom of a stub aft carried by one wall of the fountain, a driving element mounted on the stub shaft, there being a driving socket on the inner end of the stub shaft,

a bearing carried by the opposite wall of the fountain and mounted for adjustment toward and from the stub shaft, and a rotatable device having one end mounted in the socket of the stub shaft and the other end in the adjustable bearing said rotatable device having a plurality of sidewise projectin extensions ada ted to carr ink contain in the fountain toward t e inking roller, substantially as described.

EDWARD F. I'IOLZ.

Witnesses:

JAB. H. MILum, ED. MILLER.

copies of thin patent may be obtained for he cents each, by addressing the Commissioner or Patents,

Washington, D. 0."