US1082586A - Apparatus for wiping intaglio printing-plates. - Google Patents

Description

H. GEORGESQA. VALENTIN & J. ZERREISS. APPARATUS FOR WIPING INTAGLIO PRINTING PLATES.

APPLICATION FILED JUNE 10, 1913.

1,082,586. Patented Dec. 30, 1913;

-40 way of entangle,- in which:

' 'PAQPENT- enric i OIF ST.-DIZIER;, AND AUGUSTE VALENTIN AND ZERREISS, OF

. l y IUTEAUX, FRANCE. I

APPARATUS iron winner INTAGLIO PRINTING-PLATES.

Specification of Letters Patent. lutgnfgd- D90. 30, 1 913. l ginalfapplicetion filed October 8, 1910,.Seria1'1io. 586.052; Divided and this application filed June 10,

' 1913. Serial No. 772,911.

.' 'Ta'wZL-ivhpm itimay concern: 1

- :iBe it known that we, Hn'xm Geono'rs. Cllllden of theRepublioof-France, and resident .of'zSti-Dizi'ef, France, and Airous'rs VALEN- i min",- citijzen of the Republic of France, and "AJEAX'ZERREISS, subject ofthe German Ein- :pire, both residents of Puteaux, France, have inventedcerta in new and uscful'Improvenientsin Apparatus .for W'iping I'nl'aglio- Printing-Plates, ofwvhich the. following is a aispecification', the subject-matter'of this' ap plication being diyided from our prior toq pendi ngapplication, Serial No. 586,052; for I a process and apparatus forwiping intaglio printing-plates, filed October 8,1910.

The apparatus according to the'present inrentioli comprises principally a roller ot a soft and resilient; material such as gelatin. rubberor the like, for wiping the surface of intag'lio printing plates previously inked.

The rollerhaving'a certain speed of rota- .tion, is arran ged in such a-inanner thatit caln be rubbed tangentially on the surface of the inked'plates and wipe them. This roller -is"a'fterw ard washed, cleanedand the ink, etci is wi ed-01f, from the same during the time consumedf'b'y 'one' revolution of said roller; saa 'r'oll'ei" ispassed through a' cup containing'a-liquid'which dissolves the ink used 'jand by the frictional contact with brushes assists in the solution, of the ink collected on therpller; a scraper being provided for wiping the roller so that during itsrota tion its surface is always clean when 1 coming into contact with the surface of the "plates to be wiped. I

f In'fo rder that the invention may be clearly understood; the description isi'accoiiipanied a j dr'awin showing the apparatus by.

- Figure 'l is an end view'of the apparatus. Fig. 211. longitudinal view ofFigl 1, pro- 'jected to the right, the frontwall of thecpp being'brokenaivay so as to show the interiori5 'ofthe appar'atus'. Fig. 3 is a plan View of theapparatus, and Fig. 4 is a vertical cross section through the same;

'- W2" n" app arat-us.The' wiping apparatus compi-ises'the following parts: A roller or cylinder 1, ofsoft and resilient material is cast on 01' secured to a steel spindle 2 provided at each of its ends with journals 3 and 4 which enable the roller to be mountrevolving parts of the machine.

ed'in adjustable bearings suitably arranged on the frame of the machine on which the apparatus is to bc'pluced, in such a manner as to enable an adjustment of the tangential contact of the roller with the surface of the plates to be cleaned. The' rotation of the wiping roller 1 is produced by suitable transmission means controlled by one of the A cup 5 preferably" of cast-iron :conta'ius as illustrated in the drawing. the cleaning brushes ('5 and 7 and the scraper S. The cleaning brushes 6 and 7 are mounted .on mandrels 9 the cndjournals of which rotate in bearings 10 and 11 at the lower ends of levers 12 and 13. These levers are securcrlto the: spindles 14 and 15 which rotate in the bearings of thebrackets 16 and 17 and in thesockets or sleeves. 18' and 19. The hnandrels 9 carry drivingrollers 23 and 24 which come into 'ets 16 and 17.

' Drive for the cleaning 7muslzes. -Grooved pulleys 20 and 21 are keyed to the'rinss carrying the driving rollers and 2G. The to tt ition ofi tlic pulleys 9Q and 2t brought aboutby abclt driven by a pulley keyed to one of the revolving parts of the machine. The pulleys 90 and 2t keyed to the same rings as the (:lri'v in; rollers 25 and 2G, rotate the' jsuid r ollers which bring about their 'contact with rollers 92-) and Q-tjkeyed to the mandrels oft-he cleaningbrushes 6 and T7, the rotation of thesai' d brushes.

v Regulation 01' ariZjustmentof-flm contact 0f the cleaning brushcsjtcifll. the surface of the wiping rollwn 'lhe adjustment of the distance between thc axles of the wiping roller land of the cleaning brushes 6 and 7 is effected incans of levers 29 and 30 secured to the spindles 14.;ind 15 and pivoted Y .by means offeiongated holes to. eccentric pins 31 and 32 eprried by a disk 33. mounted on a journal \34 screwed into the side of the cup. The disk 33 is provided with a bell-crank lei-ch35 having a handle 36 on which is mounted a pawl 37. Thispawl is. held in "engagement with the teeth of a toothed rack 38 bymeans of a spring 39 which presses against the pivoted lever 14 mounted on the handle. It will be readily understood that the regulation of the contact of the cleaning brushcs'nith the wiping roller or cylinder is cllected in the following manner: \Vhen the handle '26 of the lever 25 is gripped and 'the spring lever H is pressed with the finger, the pawl 37 will be-disengaged from the teeth of the toothed rack 38 and it will be possible to manipulate the handle 36 so as to bringabout an angularmovement of the disk 33 upon the pivot pin 34. The journals 31 will thcnbring about an angular movement of the levers '29 and 30 which, by means of the spindles 14- and 15, will produce the same angular movement of the levers 12 and 13 regulating the contact between the cleaning brushes 6 and .7 and the wiping roller or cylinder 1.

Regulation of the contact between the wiping scraper and the wiping wallet-The scraper 8 is held in place by means of screws on the cross bar 42. This cross bar is provided at its end with journals 43 and 44: mounted to revolve with a slight friction in the bearings 45 and 46 integrally made with the cup. The cross bar 42 carries an extension 47 to which is connected a tension spring 48 also connected to a journal 49 screwed-into the bottom of the cup. The spring 48 draws the lever 47 and has the tendency. to keep the scraper away from the surface of the wiping cylinder 1. It will.

therefore be only necessary to overcome the resistance of the spring by pressing on the upper face of the scraper in order to produce a contact between said scraper and the wip-. ing cylinder. To this end. on the 'upper face of the scraper is arranged a bar 50 having notches into which engage levers 51 pivoted l to the levers 52. The upper ends of the said levers 52 are pivoted to lugs 53 integrally cast with the cup.

The bottom ends of the levers 52 arepivoted to the corresponding end of the rods The latter is mounted with its ends in guides 58. It is also provided at its ends with two pins 59 and 60 held in oval holes in the levers 61 and 62 which are keyed to thespindle 63 mounted in sleeves 64 in tegrallv made with the cup. I

Tn the construction in question the adjustment of the contact between the scraper and the surface of the wiping roller is ef-- fected by manipulating the lever 65, wherebythe cross bar 56 is moved either forward or backward. in case it is moved forward, the bar 56 exerts a pull upon the rods 54 which in their turn exert a pull upon the le vers 52, which, by means of the levers 51, hearing on the scraper bring it into contact with the surface of the wiping cylinder.

roller, in case the generatrix of the said roller is not absolutely straight, is obtained by means of milled nuts 57 whichf separate and regulate the pressureottlielever 51- upon the scraper,

The wiping device thus described shows the following characteristic features': The

cup containing the liquid dissolving the ink employed for inking the plates is provided with walls through which noneof'them'echanical parts passes below the level of the liquid contained in said cup. The -adjust-.

ment and the distance of the brushes relatively to the surface of the wiping roller, is efl'ected by simply manipulating a. lever arrangedwithin reach of the hand in front of the apparatus. The adjustment of the scraper is obtained partly by means of set screws arranged within reach of the hand in front of the apparatus. -The distance or the contact of the scraper, with the surface ofthc wiping roller is quickly obtained by manipulating levers arranged within reach of the operator in front of the apparatus. The arrangement of the different parts for regulating the cleaning brushes and the wip ing scraper relatively to the surface of the wiping roller is such as to enable the adjustment in question to be effected-without the necessity of stoppingthe working of the apparatus. a. w We claim: 1. In an apparatus of the character described for wiping intaglio p'rinlingplates, the combination of a cylinder of a. soft. resilient materiah'with a cup th ough which said cylinder is passed adapted t6'receive an ink dissolving liquid, means forrevolvin said cylinder in the liquid contaiuedin sai cup, means frictionally contacting with said cylinder during its passage through said cup for brushing it below the liquid level, and means for scraping the surface of the 'cylm-' ,der above the liquid level within said up,

substantially as described. 2. In an apparatus of the character de scribed for wiping intaglio printing plates,

the combination of a cvlinder of a soft. re

silient material, with a cup through which said cylinder is passed. 'adapted-tol receive an ink dissolving liquid, means for'revolvsaid cup, cleaning brushes frictionally contacting with said cylinder during its passage through said cup for brushing it below the ing said cylinder in the liquid contained in I silient materiah with acup throughwhich said cylinder is passed, adapted to receive an ink dissolving liquid, means controlled by a revolving part of the machine for revolving said cylinder in the liquid contained in saidcup, cleaning brushes frictionally 0on tacting with said cylinder during its passage through said cup, for brushing it below the liquid level, a scraper revolvin within said cup tor-"scraping the surface 0 the cylinder above the liquid level within said cup, means for regulating the contact of the cleaning 15 brushes with the cylinder, and means for regulating the contact of the scraper with said cylinder, substantially as'described.

In testimony whereof we afiix our signatures in presen'ce of two witnesses.

HENRI GEORGES. AUGUSTE VALENTIN. JEAN ZERREISS. Witnesses:v

HANsoN'O. Coxn, 'Ronorrrm' DELINGETTE.

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