US1240996A - Blotting or offsetting mechanism for printing-presses. - Google Patents

Description

R. MEHLE.

Blomus on orrsmmn MscHANlsM FOR Pnmrms PRESSES.

PPUCHON FLD Nov. 2i' 19H5 1 ,240,996. Patented Sept. 25, 1917 3 SHEETS---SHEET I.

R. MIEHLE.

BLOTTING 0R C\I'FSETTING4 MECHANISM FOR PRINTING PRESSES.

APPLIcATlon msn nov.21. 1916.

1,246,996. Patented septh 25,1917.

3 SHEETS-SHEET 2.

INV EN ITNESS A TTOR EY #dwf Til/.a H

R. MIEHLE. ELOTTING 0R OFFSETTING MECHANISM FOR PRINTING PRESSES.

APPLICATION FILED NOV. 21.1916.

3 SHEETS-SHEET 3.

IN V EN TOR. W TNESS nfe ATT ORNE Patented Sept. 25, 1917.

ROBERT MIEI-ILE, 0F CHICAGO, ILLINOIS.

BLOTTING 0R OFFSETTING MECHANISM FOR PRINTING-PRESSES.

Specieation ot Letters Patent.

Patented Sept. 25, 1917.

` Application filed November 27, 1916. Serial No.138,762v.

To all whom it may concern.'

lle it known that I, ROBERT Mmmm, citizen .of the United States, residing at Chicage, in the county of Cook and State of Illinois, have invented a certain Vnew and useful Improvement in Blotting or Offsettinglr Mechanism for Printing- Presses, of which the following` isla full, clear, concise, and exact description.

My invent-ion relates to printingpresses and, in one of its embodiments, particularly to those printing presses employing two printing cylinders which canse the printing to be effected upon both sides of each sheet of )aper passing througlrthe press and in which the side of paper that is first printed upon is brought into contact, while still wet, with the tympan surface of the second printing cylinder to print-offsets thereon.

In practising my invention in connection with such a pressl I employ improved means for removing'soine only of the ink that is ofiset from the printed sheet onto the tympan surface'of the second printing cylinder, this mechanism residiner in a blotting element, preferably a blotting cylinder, operating in conjunction with a blotting sheet in.

tei'posed between the blotting cylinder and the second printing cylinder, the blotting cylinder havingr raised portions which coperate with the 'blotting sheet to remove somo of the offset printing and recesses corresponding withother parts of the offset printing td allow such other parts of the offset, printif lr to remain. I also have recesses in the blo ting cylinder corresponding to blank spaces (other than the regular margins) that are left in printing on one side of a sheet and which are backed up by printing duc to the second cylinder on the other side of' tht` sheet. 'lhc blotting'element or cylinder presses the blotting sheet between the printing cylinder and tile raised portions of the blotting cylinder to transfer the ink to the blotting "sheet from thc portion of the:

net printing that corresponl'ls to the raised portions of' the blotting cylinder.

l also have employed my invention in connection with multicolor printing presses whereby sonic ot the ink upon portions of the printed sheets may be removed while other portions are allowed to remain. In my latenlr No. (193,044, dated l*`ebruary 11, 1902, I have disclosed a blotting cylinder withp raised and recessed portions res ectveiy corresponding to ink portions that llpOll.

are to be removedand are to remain. The raised portions of th'el blotting cylinder are made ot rubber or printers roller composition in order that they may first take, up the ink Aand the ink taken up thereby may be removed therefrom, but it luis been found in practice that the raised portions ot the blotting cylindenhave not sufficient aflinit and absorptive quality to take off enougi or' the ink. It has also been noticed that the ink which is taken up by the raised portions of the blotting cylinder is not adapted to be fully removed by the ink removing mechanism operating in conjunction,therewith. F or these two reasons I do 'not allow `the raised portions of the blotting cylinder to come in direct contact with the ink that is to be removed but rather interpose the blotting sheet which is preferably muslin and is i of such nature that it will readily take up the desired quantity of ink and will readily absorb the oil and \arnish, constituents of the ink. By giving this sheet sntiicientl eX- tended travel the ink will be dried tiere- I will describe my invention in sufficient detail in connection with both of these uses i of the invention, but ,to which uses the invention is not to be limited, further description ot' the invention being given in connection with the accompanying drawings showing preferred cinlmdiinen-ts thereof. In the drawings Figure 1 is indicative ot' a two cylinder printing press taken on line 1-1 of Fig. 2, parts heilig broken away, some of this figure being somewhat diagrammatic: Fig. 2 is a view on line 2-2 ot' Fig. 1; Fig. 3 illustrates the application of the invention to a color press: Fig. 4 illustrates one end ot a sheet of rubbcrithat liiay be drawn around the blotting.r cylinder after it is built up with itsl raised portions: Fig. 5' is 'an end view ot' the blotting cylinder with the rub-A ber sheet stretched about the raised portions thereot'; and Fig. 1' is a detail end view of' the rubber sheet.

Lilie parts are indicated by siinilai characters oi' reference throughout thc different figures.

Referring.'I first to the embodiment of the invention illustrated in lfigs. l and :2. I have. illustrated a printing c vlindcr l that coperatcs with one of the forms upon a reciprocating form bed-and a printing cylin-- der '2 that cooperates with another form upon said reciprocating bed. The printing los cylinder l causes one side of each sheet of paper passing thereover to be printed upon, one such sheet of paper being indicated at 3.. The sheet of paper 3 is taken by the grippers 4 upon the other printing cylinder 2, this latter printingr cylinder causing the other side of this sheet to be printed upon.

Thus by the cooperation of both printing' cylinders 1 and 2 with forms individual thereto that are upon the saine forni bed, both sides of each sheet of paper fed to the press are printed upon as is well known by those skilled in the art. The sheets of paper that have been thusl printed upon are delivered from the press by the usual or suitable delivery mechanism of which the de-v livery cylinder 5 is diagrammatieally indicated in a position somewhat dilierent from normal position owing,r to lack of space for proper illustration. The cylinder 2 is the final cylinder that operates upon the pa er passing through the press, the wet Sidi of the paper that passes'from the cylinder 1 pressing` against the tympan surface of the cylinder 2, the ink from this wet side of the paper being offset upon this tympan surface as indicated at 6, 7, 8 and 9 in Fig. lVhcre the offset printing is solid black having it remain upon the tympan surface of the printing cylinder2, but where the o'set printing is of lighter tone it is desirable to remove it. To effect this result I employ a blotting cylinder 10 surrounded by canvas 1.1 and upon which canvas there are raised portions 12 I'irojecting' from the blotting,r cylinder 10, these raised portions being of similar configuration to the offset printing.;I upon the tympan surface ot'V the printing c vlindcr 2 that is lo be renmved. Recesses upon the blottin,fr cylinder .corre spend to the oti'set printing.r that is not to be removed. The diameter of the blotting clvlinderiis such that the raised portions 12 thereiq'ion may bcqfpial in extent to the portion of the printiil'g cylinder 2 that effects the printing; rl`he printing cylinder the embodiment ot' the invent ion illustrated, rotates once while the blotting,lr cylinder rotates twiceptln'sc two cylinders beingr in Q -earconnection as illustrated :it 13. .lts illustrati-d, one revolution of the blotting Cylinder lfl is cllcclive and the second is inellective a it tlu-n operates over the nonprinlinu arca ol' the cylinder 2. In accordance with in v invention I pass a blotting sheet Il between the blottingy cvlinder and the printing cylinder 2, there being means for maintaining this blotting sheet in such a sociation with the blotting cyliinlcrthat the blotting sheet will lie closer to the blotting,r cylinder where there are no raised p0rtions 12. By this construction the raised portions 12 will press the blotting sheet with required force against the offset print is usually no objection to4 'floating to beablc ing, that is to be removed, upop the tympan surface of the printing cylinder 2 and into crevices and indentations therein. the blolting sheet being removed from contact with the remainder of the odset printing or having such slight contact therewith as practicall not to effect any removal thereof. The blotting sheet which I 'preferably employ is muslin and this sheet of muslin is desirably endless. It is caused to travel in synchronism with the blotting cylinder so as not to slip upon the raised portions 12. Any suitable mechanism may be employed for effecting the travel of the blotting sheet. The mechanism illustrated includes a driving sprocket gear 15 that drives an endless sproc et chain 16 operating over sprocket pinions 17, 18, the gear 15 beingr at the apex of an inverted triangular frame 19 while the pinions .17 and 18 are at the corners of the top of such frame. There is a suliicient opening 20 in this fr'ame to permit a pressman to have access to the blotting roller 10. The pinions 17 and 18 are in rigid relation to sli htly crowned sheet driving rollers 21, 22. he blotting cylinder 10 and the cylinders 21 and 22 have tractive engagement with the muslin to etlect the endless travel thereof normally' in clockwise direction, and to increase this tractive engagement and also toinerease the length of the muslin sheet within the space in which it travels I provide a sinuous path for the stretch thereof that intervenes between the rollers 21 and 22. This sinuous path is defined by slightly crowned idler rollers received in shallow sockets in the upper sides of the frame 19 and other idler rollers 21 in deep sockets in this top side of the frame 19. All of the idler rollers 24 except the one at the left hand end are held in the bottom ot' their sockets by means of the displareable holding bar 211. Suflicient space intervenus between adjacent rollers 21 and 23, adjacent rollers 22 and 23, and between adjacent rollers 23, to permit of 'theA removal and 'replacement of the rollers 2t for the purpose of repair of the' rollers 24 or the mllslin sheet Il. The length of the sheet Itis such that the left hand idler roller 24 does not reach the bottom of its socket and is therefore normally I,-uflieiently taut by taking up the slack therein. When the sheet contracts or eX? pands las it'may do `under the influence of weather', the sheet also e.qiantlin, 1,r under usage, I provide means whereby the roller 23 at the center of the top side of the frame 19 may be raised or lowered. To this end the sockets 25 for the shaft of the middle roller 23 are vertically adjustable, these: sockets .having slotted downward continuations 26 whi'ch, together with the sockets 25, may be moved up and down. When the socket 25 has been adjusted to a position in to maintain the sheet' whichy the middle roller 23 will so adjust the sheet 14 as to Suspend the left hand roller 24 between the ends of its socket, the adjustment is maintained by tightening the bolts 27 that pass througlr the socket continuations 26. All of the rollers 24 are desirably covered with soft absorbent material to distribute ink upon the sheet 14 and to take off some of such ink, these rollers engaging the side of the sheet 14 that takes the printin ink from the tymp'an surface of the Acylinder 2. A roller 2S similarly covered with soft absorbent material may ride in the sockets 25 and may turn upon the bight in the sheet 14 formed by the middle roller 23 whereby the ink upon the sheet 14 is further distributed and removed.

To take up the kinks and wrinkles in the Sheet 14 I make use of a spreading bar 2H having two sets of slots 30, 3l opposed to each other.

As is shown, the printing cylinders rise and fall and I therefore maintain the centers kof the blotting cylinder 10 and the printing cylinder 2 in fixed relation through the intermediation of the frame 32 and in order to lighten the load upon the support for the printing cylinder 2 I make the blotting cylinder 10 of light construction, it heilig preferably built up of wooden segments 10 that are carried upon light wheels 102. l/Vhenever the cylinder 2 and the blotting wheel 10 rise slack occurs in the sheet 14. This slack is taken up in part by a take-up device 33 in the nature of a spring structure that performs itsfunction through the intermediation of the spreading bar 29 that engages the sheet 14, the spring structure i vsanie side of the sheet.

illustrated a printing cylinder 34 which co- 33 pressing the spreading `bar against the sheet. The roller 21 which is the first to pull upon the sheet is of slightly larger diameter than the remaining rollers 22, 23, 24 so that it will take up the slack on -the left hand side. Springs 321 take part in supporting the blotting roller.

In printing upon both sides of a sheet it frequently happens that the first printing cylinder will leave black spaces (other than the regular margins) which are backed up by printing due to the second cylinder on the other side of the sheet and I therefore leave recesses in the blotting cylinder to correspond with such blank Ispaces to positively avoid offsetting from the blotting sheet onto such blank spaces.

In Fig. 5l l have shown the application of my invention to a color press of the type illustrated in my latent 1,081,320, dated December 16. 1013, this figure showing a press adapted to printing in two colors upon the same side of a sheet, though my invention is applicable to presses capable. of printing morey than two colors upon the In Fig. 3 I have operates with a form to print one color upon one side of a sheet of paper or selected portions of said side, the transfer cylinder 35 operating to transfer the paper conveyed by the printing cylinder 34 to a second printing cylinder 30 with the wet side of the sheet outward. The cylinder 3G cooperates with another form to print another color upon this wet side of the sheet whereafter the sheet is passed to the delivery mechanism (not shown) if the press is a two color press. lf the )ress is designed to print more than two colors the sheet is transferred to a third printing cylinder by means of another transfer cylinder similar to the cylinder 35, etc. My invention is not only applicable to this type of color press but is also applicable to other types as will be readily understood by those skilled in the art. It is frequently desirable to remove some of the ink from the printed surface particularly from those areas where the succeeding printing cylinder is to print another color or where ink is to be removed to make it of lighter tone or to have the effect of water color tint. In this way preparation is made for the taking of the succeeding color upon area already in receipt of a pre ceding color whereby the succeeding color will take better. In other words, the resistance offered by the preceding color to the taking of the succeeding color is reduced by making the ink of the preceding color as dry as possible and removing surplus portions thereof before the ink of the succeeding color is superimposed upon ink of the preceding color.

In Fig. 3 I have illustrated the blotting cylinder and aA part of the blotting sheet shown in Figs. 1 and 2 and like parts are given similar characters of reference.

This blotting cylinder, however, operates in conjunction with the first printing cylinder l--l instead of in conjunction with the second printing cylinder and hasl an eccentric bearing 37 b v means of which the blotting cylinder may be moved toward and from the printing cylinder EH. An arm 3H extends from this eccentric and has attached thereto an operating link 35). When the link 30 is liulled down into the position illustrated, thc blotting cylinder is lowered into working position. 'hcn a blank sheet passes by the blotting cylinder on the irst revolution ol' the cylinder Ill the link :lil is elevated to elevate the blotting cylinder to nmiopcration position and permit the blank sheet to pass the. blotting cylinder without coming into contact with the blotting cylini der but on the second revolution ot' thc printing cylinder the aforesaid sheet, which was the blank sheet. is now lriuted upon and the selected parts thereof are engaged by the blotting sheet 1l. the blotting cylinder being again lowered to working position. to remore the excess ink and dry the same as much as possible. The printed sheet upon the cylinder 34 thus operated upon by the blotting sheet is now trailsferred to the printing cylinder 536 where the printed side thereotl undergoes a second printing operation.

'hile I have illustrated cylinders of printing presses as the elements of such presses which carry thtI printing that is to be blotted by the mechanism of my invention. I do not wish to be limited to the shape or manner of operation ot' such printing press element as my invention contemplates the employment ot' raised portions of a blotting element or cylinder to register with thc selected portions of printing borne by any suitable element of the printing press in conjunction with a blotting sheet between the blotting cylinder and the printing, a part of which is to be removed.

In Figs. i, 5 and 6 I have shown a modification of the blotting rollers that are illustrated in Figs. 1, 2 and 3. In the modified roller one of the wooden segments 101 is vided with a groove 40 along whose opposite sides are distributed pins 41, 41. A rubber sheet 42 has its ends bound by a canvas border 43. Eyelets 4t are passed through the ends of the roller sheet and the canvas binding 43 thereof', the pins 41 being received in the first row of eyelets 44. After'the blotting cylinder has been built up with the raised portions 1:! (that may be termed an overlay prepared and located with a printed sheet in the manner of preparing overlays upon impression cylinders) the rubber sheet 4'2 is anchored at one end below a row of pins -H and is passed about the blotting cylinder and the raised portions 12 thereon` whereafter the other end of the rubber sheet is passed into engagement with the other row ot' pins il'. The pins 411 are desir-ably mounted upon the rod 412 which may be turned to draw the sheet 4'2 and which may he held by a paw] 413. metal strip 45 is desirably attached to earh end of the rubber sheet by the eyelets lL-the outer edges ot' these strips being turned over as indicated at #ll to enable the strip to. be engaged by a tool such as a screw driver in attaehingaml detaehing the rubber sheet.

lVhile l have herein shown and partienlarly described the preferred embodiment of my invention I do not wish to be limited to the precise details of construction shown as changes may readily be Iliade without departing troni] the spirit of my invent-ion. but baring thus described my invention I claim as new and desire to secure by Letters Patent the following:--

l. The combination with a printing press element t'or supporting printing; of a blotting element that is raised corresponding to a portion of the printing that is borne by said printing press element and recessed rorrrslmnding to another portion of the.

printing; mechanism for operating the blotting element to canse the raised and recessed- 'said printing press element and is recessed correspoinling to another portion ot' the printing: mechanism for operating the blotting element to cause the raised and recessed portions thereof to register with the printing portions to which they correspond; a blotting sheet interposed between thc raised and recessed portions of the blotting element and the :aforesaid printing press element; and means for passing such sheet between and in contact with the aforesaid printing press element and tbe raised portion of the blotting element.

The combination with a printing press cylinder for supporting printing; of a blotting element that is raised corresponding to a portion of the printing that is borne by said printing press cylinder and is recessed corresponding to another portion of the printing: mechanism for operating the blotting element to cause the raised and recessed portions thereof to register with the printmg portions to which they correspond; and a blotting sheet interposed between the raised and recessed portions of the blotting element and the aforesaid printing press cylinder.

t. The combination with a printing press cylinder for supporting printing; of a blotting element that is 'aised corresponding to a portion of the printing that is borne by said printing press cylinder and is recessed corresponding lto another portion of the printing; mechanism for operating the blotting element to cause the raised and recessed portions thereof to register with the printing )ortions to which they correspond; a blotting sheet interposed between the raised and recessed portions of the blotting element and the aforesaid printing press cylinder; and means for passin such sheet between and in contact witlntie aforesaid printing press cylinder and the raised portion of the blotting element.

The combination' with a printing press element for supporting printing; of a blotting cylinder that is raised corresponding to a portion of the printing that is borne by said printing press element and is recessed corresponding to another portion of the printing; mechanism tor operating the blotlli) ting cylinder to cause the raised and recessed portions thereof to register with the printing portions to which they correspond; and a blotting sheet interposed between the raised and recessed portions of the blotting cylinder and the aforesaid printing press eleinent.

(i. The combination with a printing press element for supporting printing; of a blot- "-ting cylinder that is raised corresponding to a portion of the printing that is borne by said printing pi'ess element and is recessed corresponding to another portion of thc printing; mechanism for operating the blotting cylinder to canse the raised and recessed portions thereof to register with the printing portions to which they correspond; a blotting sheet interposed between the raised and recessed portions of the blotting cylinder and the aforesaid printing press element; and means for passing snch sheet between and in contact with the aforesaid printing press elcnfent and the raised portion of the blotting cylinder.

7. The combination with a printing press cylinder for supporting printing; of a blotting cylinder that is raised corresponding to a portion of the printing that is borne by said printing press cylinder and is recessed corresponding to another portion pf the printing; mechanism for olicrating the blotting cylinder to cause the raised and recessed ortions thereof to register with the printying portions to which they correspond; and a blotting vheet interposed between the raised and recessed portions of the blotting cylinder and the aforesaid printing press cylinder.

8. The combination with a printing press cylinder for supporting printing; of a blotting cylinder that is raised corresponding to a portion of the printing that is borne by said printing press cylinder and is recessed corresponding to another portion of the printing; mechanism for operating the blotting cylinder to cause the raised and recessed portions thereof to register with the printing )oi-tions to which they correspond; a blotting sheet interposed between the raised and recessed portions of the blotting cylinder and the aforesaid printing press cylinder; and means for passing such sheet between aiul in contact with the aforesaid printing press cylinder and the raised portion of the blotting cylinder.

i). '[he combination with a printing press element for supporting printing; of a blotting cylinder that is raised corresponding to a portion of the printing that is' borne by said printing press element and is recessed corresponding to another portion of the.

printing; u'iechanisin for operating the blotting cylinder to cause the raised and reeessed portion thereof to register with the printing portions to which they correspond; an endless blotting sheet interposed between the raised and recessed portions of the blotting cylinder and the aforesaid printing press element; means for passing such sheet between and in contact with the aforesaid printing press element and the raised portion of the blotting cylinder; and means for effecting the travel of such sheet.

10. The combination with a printing prees cylinder for supporting printing; of a blotting cylinder that is raised corresponding to a portion of the printing that is borne by said printing press cylinder and is recessed corresponding to another portion of the printing; mechanism for operating the blotting cylinder to cause the raised and recessed portions thereof to register with the printing portions to which they correspond; an endless blotting lsheet interposed between the raised and recessed portions of the blotting cylinder and the aforesaid printing press cylinder; means for passing such sheet between and in contact with the aforesaid printing press cylinder and the raised p0rtion of the blotting cyliiidei; and means for effecting the travel of such sheet.

11, The combination with a printing press element for supporting printing; of a blotting cylinder that is raised corresponding to a portion of the printing that is borne by said printing press element and is recessed corresponding to another portion of the printing; mechanism for operating the blotting cylinder to cause the raised and recessed portions thereof to register with the printing portions to which they correspond; an endless blotting sheet interposed between the raised and recessed portions of the blotting cylinder and the aforesaid printing press element; means for passing such sheet between and in contact with the aforesaid printing press element and the raised portion of the blotting cylinder; means for effecting the travel of such sheet; and means for taking up the slack in the sheet upon each side of the blotting cylinder.

12. The combination with a printingpress cylinder for supporting printing: of a blotting cylinder that is raised corresponding to a portion of the printing that is borne by said printing press cylinder and is recessed corresponding to another portion of the printing; mechanism for operating the blotting cylinder to cause the raised and recessed portions thereof to register with the printing portions to which they correspond; an endlessv blotting sheet interposed between the raised and reresr-ied portions of the blotting cylinder and the aforesaid printing press eyiinder; means l'or passing such sheet, betwecnand in contact with theI aforesaid printing press cylinder and the raised portions of the blotting cylinder; means for effecting the travel of such sheet; and means for taking np the slack in the sheet upon each side of the blotting c vlinder.

13. The combination with a printing press element for supporting printing; of a blotting cylinder that is raised corresponding to a portion of the printing that is borne by said printing press clement and is recessed corresponding to another portion of the in-inting; mechanism for operating the blotting cylinder to canse the raised and recessed portions thereof to register with the printing portions to which they correspond; an endless blotting sheet interposed between the raised and recessed portions of the blotting cylinder and the aforesaid printing press element; means for passing such sheet between and in contact with the aforesaid printing press element and the raised portion of the blotting cylinder; means for effecting the travel of such sheet; and two sets of rollers engaging a portion of the blotting sheet there to give the blotting sheet a sinnous path of travel,

14. The Combination with a printing press cvlinder for supporting printing; of a blotting cylinder that is raised corresponding to a portion of the printingr that is borne by said printing press cylinder and is recessed corresponding to another portion of the printing; mechanism for operating the blotting cylinder to cause the raised and recessed portions thereof to register with im printing portions to which they' correspond; an endless blotting sheet interposed between the raised and recessed portions of the tting cylinder and the aforesaid printing press cylinder; means for passing such sheet between and in contact with the aforesaid printing press cylinder and the raised portion of the blotting cylinder; means for effecting the travel of such sheet; and two sets of oilers engaging a portion of the blotting sheet there to give the blotting sheet a sinuous path of travel.

15. The combination with a printing press element for supporting printing; of a blotting cylinder that is raised corresponding to a portion of the printing that is borne b v said printing press clement and is recessed corresponding to another portion. of the printing: n'iechanism for operating the blotting cylinder to canse the raised and recessed portions thereof to register with the printing portions to which they correspond; an endlcss blotting shcct interposed hetivecn the raised and recessed portions of thc blotting c rlindcr and the aforesaid printing press clement: means for passing such sheet between and in contact with the aforesail Printing press clement and the raised por- `tion of the blotting cylinder; means for effecting the travel of such sheet; means for taking np thc slack in the sheet upon each dirle of the blotting cylinder; and two sets of rollers engaging a portion of the blotting sheet there to give the blotting sheet a sinuons path of travel.

1U. The combination with a printing presscylinder for supporting printing; of a blotting cylinder that is raised corres )onding to a portion of the pidnting that is orne bv said printing press cylinder and is recessed correspoiiding to another portion of the printinf: mechanism for operating the blotting lc vlinder to canse the raised and recessed portions thereof to register' with the printing portions to which the)Y correspond: an endless blotting sheet interposed between the raised and recessed portions of thc blotting cylinder and the aforesaid printing press cylinder: means for passing such sheet between and in contact with the aforesaid printing press c vlinder and the raised portions of the blotting cylinder; means for effecting the travel of such sheet; means for taking np the slack in the sheet upon each side of the blotting c vlinder; and two sets of rollers engaging a portion of the blotting sheet there,I to give the blotting sheet a sinnous path of travel.

17. The combination with a printing press element for supporting printing; of a blotting cylinder that raised corresponding to a portion of the printing that is borne by said printing press element and is recessed eorrespondingr to another portion of the printing; mechanism for operatingthe blotting cylinder to canse the raised and recessed portions thereof to register with the printing portions to which the)v correspond; an endless blottingr sheet interposed between the raised and recessed portions of the blotting cylinder and the aforesaid printing presa clement: means for passing such sheet between and in contact with the aforesaid printing press` clement and the raised portion oll the blotting cylinder: means for effecting the travel of such sheet; and two sets of rollers engaging a portion of the blotting shcct there to gire the blotting sheet a sinnons path oi' travel. rollers engaging thc ink receiving ,side of said sheet having their shcct engaging portions made of ink taking material.

1H. 'l`hc conibination with a printing press cylinder for supportingprinting; of a blotting c vlindcr that is raised corresponding to a portion of the printing that is borne by said printing press cylinder and is recessed corresponding to another portion of the printing: mechanism for operating the blotting c vlinder to canse the raised and recessed portions thereof to register With the printing portions to which they correspond; an endless blotting sheet interposed between the raised and recessed portions of the blotting cylinder and the aforesaid printing press cylinder; means for' passing such sheet between and in contact with the aforesaid printing press cylinder and the raised portion of the blotting cylinder; means tor effecting the travel of such sheet; and two sets of rollers engaging a portion of the blotting sheet there to give the blotting sheet a siniions path ot' tra vel, rollers eng-ag# ing the ink receiving side of said sheet havin.:r their sheet engaging portions made of in taking material.

19. The combination witha printing press. element for supporting printing; ot' a blotting ing to a I )ortion of the printing that is borne by said printing press element and is recessed corresponding to another portion ot' the printing; mechanism for operating the blotting cylinder to cause the raised and recessed iol-tions thereotI to register with the printing portions to which they correspond; an endless blotting sheet interposed between the raised and recessed portions ot the blotting cylinder and the aforesaid printing press element; means for passing such sheet between and in contact with the aforesaid printing press element and the raised portion ot' the blotting cylinder; means for effecting the ti'a vel of sneh sheet; means for taking up the slack iu the sheet upon each side of the blotting cylinder; and two sets ot' rollers engaigingl a portion ot' the blotting sheet there to give the blotting sheet a siuiioiis path of travel, rollers engaging the ink receiving side ot`,siiid sheet having their sheet engaging portions inade oi' ink takin" material.

20. lhe combination with a printing press cylinder' for supporting printing: of a blotting cylinder that is raised corresponding to a portion of the printing that is borne by said printing press cylinder and vis recesscd corresponding to another portion of the printing; mechanism tor operating the. blotting cylinder to canse the raised and recessed portions thereof to register with the printing portions to which they correspond; an endless blotting sheet interposed between the raised and recessed portions ot' the blotting cylinder and the aforesaid printing press cylinder; means for passing such sheet between and in contact with the aforesaid printing press cylinder and the raised por tions of the blotting cylinder; means for effecting the travel of such sheet; means for taking up the slack in the sheet upon each side of the blotting cylinder; and two sets of rollers engaging a portion of the blottiri sheet there to give the blotting sheet a smuous path of travel, rollers en aging the ink receiving side of said sheet iavin r their sheet engaging portions made of 1n taking material.

21. The combination with a printing press element for supporting printing; of a blotting cylinder that is raised corresponding to a portion of the printing that is borne cylinder that is raised correspond-I bysaid printing press element and is recessed corresponding to another portion of the printing; mechanism for operating the blotting cylinder to cause the raised and recessed portions thereof to register with the printing portions to which they correspond; an endless blotting sheet interposed between the raised and recessed portions otl the blotting cylinder and the aforesaid printing press element: means t'or passing such sheet between and in contact with the aforesaid printing press element and the raised portion of the blotting cylinder; means for eli'cetiug the travel oi such sheet; andineans for taking up slack in the sheet.

2;. rl'lie combination with a printing iress element for supporting printing; of a lblotting cylinder that is raised corresponding to a portion ol the printing that is borne by .said printing press element and is recessed eorrespoinliiig to another portion of the printing; mechanism t'or operating the blotting cylinder to cause the raised and recessed portions t'liereot to register with the printing portions to which they correspond; an endless blotting sheet interposed between the raised and recessed portions of the blotting cylinder and the aforesaid printing press element; means for passing such sheet between and in contact with the aforesaid printing press element and the raised portion ot' the blotting cylinder; means for elleeting the travel of such sheet; and two sets of rollers engaging a portion of the blotting sheet there to give the blotting sheet a sinuoiis path of travel, one of the rollers in one ot these sets floating to take up slack iii the blotting sheet.

Q3. The combination with a printing press eleuicut for supporting printing; of a blotting cylinder that is raised corresponding to a. portion oi" the'printing that is borne by said printing press element and is recessed corresponding to another portion of the printinglmeclianisin for operating the blotting cylinder to cause the raised and recessed portions thereof to register with the printing portions to which they correspond; an endless blotting sheet interposed between the raised and recessed portions of the blotting cylinder and the aforesaid printing iress element; means for passing such sheet etween and infcontact with the aforesaid printin ress element and the raised portion o t e blotting cylinder; means for effecting the travel of such sheet that are inclusive of two sheet driving rollers; and two, sets of rollers engaging a portion of the blotting sheet there to give theblotting sheet a sinnous path of travel, these two lsets of rollers being located between these sheet driving rollers.

.24. The combination with aprinting resa elementV for supporting printing; of a lottng cylinder that is raised corresponding to :i portion of 1h(A printing that in horno n' said printing' pri-s,` rlvnwnt und is rttfwsod f'ori'vsponding' to nnotlwr portion of thi printing: inw-lmnifsni for opvrnting thu blotting rylinrlvr to muso thv raised und rvrwifvd portions thon-of to rvgistvr with ihn plintin,"r porliolm` to whit-h tlwy rorrospond: :in vinilo blowing duwt intorpm. l bnlwvon 1l|t^ i'ziiswl and rom-sshd portions, oi tin' blot`- ling` rylindvr find tin nfortsaid printing prws Plonirnt: moans for passing' Snr'li .short lit-twl-cn und in Contact with 1l aforesaid ]'ninting f' prrss Chinn-nt und ille raisod por- 1ion of the blottingr o vlinder; moans for of;

trawl of smh shoot that are two shout drivingr rollers; and two .s vfs of rollvrs ongzlging a portion of tins blotting shi-0L chore lo give the blotting sheet n sinnons path of travel, those two sets of rollers living locati-d hvwecn these sheet driving rollers, tlm sheet driving roller whit-li first pulls upon the slwet being of larger dizlniot'r than the 01h01' shtttdriving;r roller. i

I n witness whereof` I hereunto subscribe my imma this 22nd day of November A. D., 1916.

for! ing th(l inclusiv(l of ROBERT Mini-nin.

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