US997051A - Rotary sheet-printing press. - Google Patents

Description

M. A. DROITGOUR. ROTARY $HBET PRINTING PRESS. APPLICATION FILED NOV. 2, 1910.

Patented Jilly 4, 1911.

l. i ittlitlh MICHAEL ANDREW DROITGOUR, 0F GALE: PARK, ILLINOIS ASSIGIFI'OR 'iii MIEI-ILE PEINT ING PRESS AND MANULEAGT'URING UBMPANY, l (BIEEICAGO, ILLINDDE, A CORPORA- a'xon or rumors.

99?,051, I i lfipecification of Letters Patent,

RGTARY SHEETQPBINTING PRESS Patented July a, tail.

Serial No, 51%,332.

Application filed November fl, will.

To all w/wm itmay concern:

1' Be it known that 1, MICHAEL A. Deere COUR, of Oak Park, in the county of (look and State of Illinois, have invented certain new and useful Improvements in Rotary Sheetdrinting Presses; and I hereby do clare that the following is a full, em, and

exact description thereof, reference being had tothe accompanying drawings, which ,printing presses ofthe general type shown in my' application for patent No,

570,012, filed July lst, 1910; and the objectof the present invent-ion is to simplify the construction of the press shown in my said appl1cat1on,'and to enable alternate sheets taken successively from one pile or teed table,.-,vvhich'v may be an automatic sheet feeder to be placed upon separate registering tables upon which the sheets are nositioned by proper gages; and from said reg- 1ster1n tables the sheets are taken alien nately y means of related transfer reels, or cylinders, and carried to the ppci's on the impression cylinder, by whichthe sheets are successively presented to theprintiug sor face or plate cylinder, and the printed sheets arefthereafter taken from the im pression cylinder "by a delivery cylnder or reel, which is preferably arranged to sunrender alternate sheets to one dcliveryaueclr posited upon another table. In this man anism, by which such sheets are transported and deposited upon one table, While every other sheet is taken from said delivery reel by latter-reel to a second delivery mechanism by which the latter sheets are separably dcnor thcpshcets may be adjusted comparafti'vely slowly on the respective registering tables, are rapidly printed, and are then coin arativel slowl delivered so that. an;-

thatit can be accurately ositioned before pletimc is provided for accurately position mg each sheet upon its registering table so being seized by the trans er reel grippers; and ample time given for the delivery oi each sheet. lnthis Way the actual time allowed for the positioning of each sheet be --foiepreso 11tati0n to the impression cylinder is: approximately twice the time req ired for the printingof such sheet, and the time with registering-go p50 required for the delivery oi? each. printed sheet is also approxm'uitely twice the time ltqllllfll' for the printing thereof. Therefore I am enabled to operate the printing cylinders at very high speed while operating the feed and deliver, mechanisms at a coinparatively very low speed. The delivery mm anisms may he any suitable oonetiuctioai such Patent No; 960,007 of May 81, 1910.

l will now (lescl'iliie the invention with refei'cncc to the accompanying drawings; the mechanical details of construction of the elemental parts of such press being" so Well ln'ionn that any one jlaniiliar with the art can readily construct and operate a machine in accordance with the invention from the information contained in the following description and the said drawings.

in said drawings-l igure is a diagramnial'ical longitudinal vertical Sectional ele ing the positions of parts when a sheet is about to he taken from thoupper registering tahle; and Fig. 2 1s a similar View, with an other fiirni of automatic feeder, indicating.v

the positions oil parts when a sheet is about to lle taken from the lower 'z'egisteringtable. in the drawlngs 1 represents a form or h1tc cylinder adapted to carry a single form or type 1 supplied with ink from a fountain 1 by means of an y suitable system olinlting rolls, indicated at 1*.

w ith the late cylinder 1 cooperates an impression cylinder 2, which is provided with grippers, 2 that are adapted to take sheets a, 'nateiy from two transfer reels or cyliud and 4 and present the sheets sucy to the form on cylinder 1 and t i} surrender them to a transfer reel or cylinder 'l'l lhe reel 3 has grippers adapted to take sheets from a registering tahlefor board 3 on which the sheet is fed up against registering}; 3" olgthc usual construction.

The reel 4- has grippers it adapted totake sheets from aregistcring table h provided J all. i The sheets S 9), may be fed to thc'tahlee ll", 4-.- hy handily automatically I prefer use automatic sheet feeder and haveindicated at 5 in for example as shown in my Fig. l of the drawings an automatic sheet feeding device of the type shown 111 the Cross Patents No. 799,457 of September 12,

1905, and No. 812,260 of February 13, 1906, in which a pile of sheets is bent around a roll 5 and fed successively forward by automatic mechanism, not shown, on to the tables 3, 4. The table 39may be provided with movable fingers or guides 3 adjacent the end of the feed table 5, and operated by suitable mechanism, not shown, so that al- 'ternate sheets fed forward by the feeder 5 will be directed onto the table 3, and every other sheet onto the table 4.

Instead of the rotary feeder indicated in Fig. l a pile feeder might be employed as indicated at 5 in Fig. 2, such-being -well known, and adapted to automatically feed the sheets to the tables 3, 4*, as described.

Automatic sheet feeders being well knownneed no particular description herein, and

I have simply indicated such feeders diagrammatically in the drawings to show that any style of automatic sheet feeder could be employed, but the invention does not reside in the feeder, and the registering tables 3, 4 might be'supplied with sheets fed' thereto by hand from an ordinary feed table. The grippers 3 4 are timed to take sheets from their respective tables 3, 4, and to surrender the sheets to the grippers 2* at the proper time; and grippers 2 are operated to take sheets alternately from reels 3 and 4 at the points of juxtaposition of the reels and cylinders. As many means-for so operating the grippers are well known it is not necessary to illustrate same herein.

The printed sheets are taken from the cylinder 2 by the grippers 7 on the transfer reel or cylinder 7. which are arranged to take all the sheets from cylinder 2 but will,

deliver alternate sheets to adelivery mecha-v nism 7 and the other sheets to a delivery reel 8. The delivery mechanism 7 may be like that shown in my Patent No. 960,007 aforesaTl; or .of any other suitable construction adaptedto deposit the sheetsupon a receiving table 7 orother suitable point 'of deposit.

The sheets taken from cylinder 7 by the delivery reel 8 are delivered to a second delivery mechanism 8*, which may also be like that described in my said patent, and by.

which they are deposited upon-atable 8 I have not considered it necessary to illustrate in the drawings the mechanism for feeding the sheets, or for operating the switch 3,

nor the sheet gages 3 4:, nor the grippers of the several cylinders; as such mechanlsms are common and well understood by those familiar with the art, and will be readily supplied by the ordinary press mechanic.

' The operation of the/press is as follows: The sheets are fed alternately to the registering tables 3 i -and assuming that a sheet a1so L ent tables to be registered at successive im:.

the machine if desired.

is properly positionedon table 3 (see Fig. l) the grippers 3 of reel 3 seize such sheet and carry it to the cylinder 2 whose grippers 2 take the sheet and present it to the form on cylinder 1 and then surrender it to the grippers 7 of transfer reel 7, which in turn take such sheet and surrender it to the delivery 7 by which it is deposited upon table 7 While the SllGut from table 3"v is being printed another sheet is being properly positioned upon table at and the grippers a of reel 4: take the sheet from table 4* (see Fig.

2) in time to deliver itto thegrippers 2 on cylinder 2 upon the next revolution thereof succeeding the printing of a sheet taken from table 3, and the sheet taken from table 4 will be presented by cylinder2-t0 the plate cylinder 1 and then surrendered by cylinder 2 to the-transfer reel 7, but the parts are preferably so arranged and timed that the grippers 8 on reel 8 will take this sheet from reel 7 and transfer it to the delivery 8 by which it is deposited on table 8 and at the next revolution of the cylin der 2 a sheet taken from the table 3 will be printed.

In the preferred mode of operating the press the parts are so arranged and timed that the sheets will be alternately taken by cylinder 2 from thereels 3 and 4; and the sheets taken from table 3 will be printed and finally deposited upon table 7 while thesheets taken from table 4? will be printed and finally deposited upon table 8". Thus the sheets fed from both registering tables 3, 4* will be printed on the same form, by the same plate and impression cylindersyand' yet may be delivered at different points.

When the press is operated in this manner the time required for two impression operations of the plate and impression cylinders 1 and 2 is allowed for positioning a sheet on either registering table 3 or 51;; and a like amount of time is allowed for depositing a sheet upon either table 7" or 8 In other words twice as much time is allowed for the feeding and delivery of a sheet as is allowed for the printing thereof, which is of the utmost advantageflin p'roducin fine work at high speed. The separate de IVQIy of the "ets fed from the tables 3 and' t .-s the sheets fed from the differdelivered on table 7' will be deposited printed side up, While the sheets delivered on table 8 Will be deposited printed side down.

The delivery reel grippe's might be ad ljusted so that the sheets printed on table 3 could be deposited on table 8 and the sheets from table 4? might be deposited on table 7*, or so that all the sheets'will be deposited on either table 7 or 8, if it is not desired to "that said reels deliversheets to said cylinder at different points of its rotation; that all the sheets are delivered from the impres sion cylinder at the same pointto one transfer reel; that alternate sheets are taken front the first transfer reel by! another trans, fer reel so that alternate sheets are delivered by the first transfer reel to one delivery n18Cl1tLI 1lSH1,-Wl]1l: the other sheets are delivered by the second transfer reel to another clelivery mechanism, 'and that by the employment oi. such transfer reels each sheet is under absolute control from the nionient it leaves its table 3, ters the delivery tapes.

' In the practical construction of the press suitable tripping mechanism should be provided whereby the impression will be thrown oil it a sheet is not properly fed to the impression cylinderfron'i ither registen ing table so that the blanket on the impresslon cylinder would not be printed upon in case a sheet waslnot fed, or was improperly fed thereto.

' Vlhat claim is:

i. In a printing mechanism, the combination of an impression cylinder, plate c 8, "I, under pew-acting therewith, a feed table, a

pair at registering'tables, and a pair oi gripper reels, one for each l'al ile, adapted to transfer sheets from the registering tables to the impression cylinder.

2.1n a printing mechanism, the colnbination of an impression cylinder rotating in one flll'QCtlO'll, a printing surface cdactm r therewith, a pair of superposed sheet taliles,f' 'a gripper recl for each table adapted to.

transfer sheets from such table to the inn presslon cylinder; With two sheet deliv r I mechanlsms one receiving sheets :ted :trhl l one of the sheet tables and theother receivf mg the alternate sheets fed from the other sheet table.

3. In, a printing mechanism, the combination of an impression cylinder rotating in one direction, a plate cylinder cmacting or l, until it en' therewith, pair of superposed sheet ta bles, a pair of transfer gripper reels one for each table adaptedlto transfer sheets from such tables to the ii'npressio-n cylinder at di;tferent points; and a pair of sheet delivery mechanisms, ODQTQCBIVlIlg sheets fed from one of the tables and the other receiving the alternate sheets fed from the other table.

4. In combination, an impression cylinder rotating in one direction, printing surface cooperating therewith, two i'eed tables one above the other, two reelsone for each table adapted to alternately transfer sheets from said tables to the impression cylinder at diflerent points, and nieans'l'or removing all the sheets from the cylinder at the same point, and. means for delive 'ing the sheets at the same or different points,

5. In a painting mechanism, the combination of an impression cylinder, a printing surface co-acting therewith, a pair of sheet tables, a reel "for each table adapted to transfer sheets from such table 'to the impression cylinder, a del 'e'ry reel taking all the sheets from the impression cylinder at one point, a second delivery reel taking allternate from the first delivery reel, and delivery mechanisms receiving sheets from the said delivery reels.

(3. Incombination an impression cylinder,

a printing surface 'co-acting therewith, two

feed tables, two gripper reels for transfer ring sheets from. the respective tables to the impression cylinder at dili'erent points, with a transfer reel taking all the sheets from the 1mpress1on cylinder at one point, a second,

transfer reel taking alternate sheets from the first transfer reel; a delivery mechanism receiving sheets from the first transfer reel, and a second delivery mechanism receiving sheets from the-second transfer reel.

7. In a printing mechanism, the combination of an impression cylinder, a plate cylinder co-acting therewith, a pair of sheettahles, a gripper reel adjacent each table for transferring sheets from such table to the impression cylinder, a delivery reel taking all the printed sheets from the impression cylinder, a seconddelivery reel tall. alternate sheets from the in t delivery delivery mechanism receiving sheets from the first delivery reel, and a second delivery mechanism receiving sheets from the second delivery reel..

8; in comhination an impression cylinder, a plate cylinder cooperating therewith, a, teed table, two registering tables, ill'KttWO reels for transferring sheets from the respective registering tables to the impression cylh'nle'r at dilier'cnt points; with. a gripper reel taking all the printed sltleets from the impression 'cylinder at one point; a second gripper reel taking alternate sheets from the first gripper reel; a delivery mechanism receiving '-'altern:. i te fl shccts from the first transfer sheets from 7 one direction,

gripper reel, and .a second delivery mechanism receiving all the sheets from the sec 0nd gripper reel.

In printing mechanism, the combination of an impression cylinder rotating in one direction surface, a plate cylinder co-acting therewith, a pair of superposed sheet tables, a pair of gripper reels, one for each table, interposed between the tables and the impression cylinder and adapted to alternately the related table to the impression surface of said impression cylinder. 4

printing mechanism, the combination of an impression cylinder rotating in and having one impression surface and one set of grippers, a plate cylinder co-acting therewith, a pair of super posed sheet tables, a gripper reel for each table interposed between such table and; the impression cylinder and adapted to alterand having one impressionnately transfer sheets from said tables to the grippers of the impression cylinder at difierent points,

11. In printing mechanism, the combinalZlOIl of an impression cylinder rotating in one direction, and havlng one impression surface, a plate cylinder co-acting therewith, a pair of sheet registering-tables arranged one above the other, and rboth above the impression cylinder; and a anof grip- In testimony that I claim the foregoing as my own, I affix my signature 1n presence of two witnesses.

MICHAEL ANDREW DROITGOUR- lVitnesses I SIMON BARLOW, CARL HnNDnRsoN.

Images