US870210A

US870210A - Rotary web-perfecting printing-machine.

Info

Publication number: US870210A
Application number: US18692303A
Authority: US
Inventors: Henry A Wise Wood
Original assignee: Campbell Printing Press & Manufacturing
Current assignee: Campbell Printing Press & Manufacturing Co; Campbell Printing Press & Manufacturing
Priority date: 1903-12-28
Filing date: 1903-12-28
Publication date: 1907-11-05
Anticipated expiration: 1924-11-05

Description

PATENTBD Nov. 5, 1907 H. A. w. WOOD. ROTARY WEB PBRPBGTING PRINTING MAUHINB.

APPLICATION-FILED OCT. 18, 1897. REHEWBD DEC. 28. 1903.

Q I nventot; 36.0.. I. W

Attorneys.

\Vnnesses.

j UNITED STATES IPA inn'r GEE-ICE.

HENRY A. WISE WOOD, OF NEW YORK, N. Y.,

ASSIGNOR TO CAMPBELL PRINTING PRESS &

MANUFAGTURlNG COMPANY, OF NEW YORK, N. Y.. A CURPORATlON OF NEW YORK.

BOT! WEB-PERFECTING PRINTING-MACHINE.

Specification of Letters Patent.

Patented Nov. 6, 1907.

Appliutlanmod mm 15. m1. smn 818135.330 Banned Docember 2a. 1903. Batik-186.928-

To all whom it may concern:

Be it. known that 1, Hana; A. Wish W00, 1 citi- I-cn'oi the United States, residing at New York, in the county of New York and State of New York, have indented a new and useiul linpniyeinent in Rotary Web- ?eriecting Printing-Machines, of which the following ilnnpeciiicatiun.

The aim of this invention is to improve the operation of rotary web perfecting printing pro-mes. In niuchines oi this charnclcr; it in the present practice to t tho plan-5 on the twoprinting cylinders so ihai. their margins will not register, that is, so that the margin between the plates will not come opposite the impression cylinder of each couple at the same time. The rceult of this operation is thatthcro is always a constant bite on the web between able-1st one impressibn cylinder and plate, so that the web is bodily fed forward by the printing couples. This is true both in press in which two separate couples are used and nlSQ'i-n a prtw in which a single couplc of double the width of the web is usedwith a Wlb-IIEVUISCY and imnsfcrrcr.

It is well known that stereotype plates vary in size 71d condition. Hence, the feeding function which isperfonucd in tho rotary prnrsses, as built to-day, will vary. For example, if the plates should be a thirtysccond of an inch larger than normal, for every thirtytwo papers printed, there would be an inch cl slack web created between the printing mechanism and the 80 folding mechanism. On the othu' iron-.1, ii the plates should be thirtys 'ond oi an inch too small, lur every thirty-two pnpcrs printed there would be an inch of tsuti ning of web bctwccn the printing un-chanisin and the folder. This set ing of the margin 86 between the plates out of register. then-lore, conunonly (8118(5 ciihcr an increasing flood of aper to descend on the folder, or a drought of web 1o be supplied to tinlolder, the iornn-r greatly interfering with the proilu tiou of nicnraU-ly folded papers. and thrlnhor her-ping thqiolding mechanism cutting short shoots in which long and ugly pin'tczus appear. 1 have found that this evil can he renwdicd by setting the inargim of the plates on the cylind rs in icgistcr, that is, Qo'that when one printing cylinder PIG-Penis the (5 margin bctwl-en the plains in i s impression ('Flin h the other printing cylindcr will in: in ilusame. positinn. Then, by using a lor'ivlirding device between the printing mechanisms and the foldcr. the evil before referred in is ovcrcnnie. I

0 ll forwarding dcvico is also prcfemhiy used between the \V('l)-l(ll and the priming ld'lfllfi flslll. with this i he nmrgins lwtwccn ilu: plains or both arrangemont,

cylinders li ering, the web will be permitted to equalize llrlli an. every half tum oi the printing cylinbcunncs merely a. passenger, and the printing cylinders act only in'their proper function of printing 015- menus, and not as oontirmouz feeding elements. By this constmciion, if the plate should be too large or too small, the error is corrected at every half turn of the cylinders.

Referring in the drawing, 1 have shown in section enough of one common. form of rotary web printing press in illustrate the application of my invention, no that a skillml printing press builder will be able to B5 practice the same.

In detail, A:represent5 the first impressioncylinder;

15, the first printing cylinder;- C, the second impremion cylinder, and l) the second printing cylinder-oi an --rdinary rotary web perfecting press. The two iinprernion cylinders A and C are slightly separated so that the web is not forcibly nipped between the name.

(,oacting with the priming cylinder B is arranged any of the ueual inking appamtuses l. and a similar appamtus I is arranged to enact with the printing cylinder'D.

As shown, the ecmi-cylindrical plates plr ed on the two printing cylinders B and D are no set that the margins between the plates will register.

W represents the web-roll, from which the web in is drawn. The same passes first around a feeding-in drum 10, coin-ting with nhich are tapes 11, which run around tape-pulleys or rollers l2, l3 and 14.

The feeding-in drum l0 and its warring tapes may be po itively driven, as by means 01 the gearing 15, 86 16 and 17, indicated in dotted lines. from any suitable part of the machine; for example, us [turn the inkdrum n! (he inking apparatus 1 Fruin the feeding-in drum 10, the web passes around a suitable guiding roller 18, then bet-ween the first printing couple A B, then between the second printing couple (3 D, then around a guide roller 19 to a feeding-out drum 2-).

Coat-ting with the feeding-cut drum 20 is a set of tapes 21, which run around the tapepnlleye or roller! 05 22, 23 and 24.

The feeding-(nit drum and its rapes may be driven from any suitable part 01' the machine, as iromthe inkdrurn oi the inking appmntus I by means of the gani 25, 26 and 27 indicated in dotted lines.

The tape-roller 23 is preferably mounted in suitable arms 28, which are mounted on a shaft 29 extending from which is a nut- 30, in which is tapped u. acrew 31 journaled in a suitable framing, and having a. handwheel 32. By this arrangement, the tension 0! the tapes 21 can be regulated to secure any desired bite on the paper.

From the feeding-out drum 20, the web' passes up around a roller 33, and then to any suitable folding 5 ders. Thus, the web between the im'wg ding lcviccs 1 apparatus F, which may be a subsequent jnnlveuo no cutting and web-manipulating mechanism, as is well I ing machine and shall bite on the web beyond the understood.

The invention cen be easily applied to other forms of rotary web printing machines, as for example, to one in which a single printing couple of double width is used in connection with a. web reverser or turner and transicrrer. Thus all variation imparted to the web by the varying sizes and surfaces of the printing plates can be avoided.

The positively driven forwarding device 20 is so arranged that it will supply the proper length of web to the folder in the continuous operation of the mechine, and is preferably adjusted to run slightly faster than the feeding-in drum 10, so as to keep a slight tension on the web between the said drums l0 and 20.

If any of the plates on the printing cylinders are a. trifle too large, during the printing contact of the plates, 9. slight excess of tension will he put upon the web between the drum l0 and impression cylinders, and a slight decrease of tension between the impression cylinders and drum 20. This error will be compensated when the printing cylinders simulfanconsly present the margins between the plates to the impression cylinders by a slight adjustment of the web between the feeding-in drum l0 and the lorwarding drum 20. On the other hand, ii any Jf the plates should be slightly under size, the web bctvl'een the feeding-in drum l0 and the inmression cylinders will be put under a little less tension, and the web hot v-z'cn the impression cylinders and forwarding drum 20 will be put under a little greater tension during the printin This unequal tension will be rcctilicd when the printing cylinders si enhance-us; prcscnt tlm margins between illc plates to the impression cylinders by a slight adjustment of the tension between these tw parts of the web. Thus errors caused by variances in the size of the plates will be corrected during the short non-impression periods. Thus any error can never bet-anti: cumulative, and a constant supply of web to he folder always maintained by the iorwnrding drum 20,'-indepcndenlly of the irregularities in the size of the plates.

irregularities in any one or more of the plates will be corrected by the above operation.

it will be noted that the web forwarding. device has a fixed speed ratio with the printing machine whereby said forwarding device will furnish web at proper speed for further manipulation, and the correctionn or adjustments will take place between the device which feeds the Wtfl) to the printing mechanisln and raid wcl) forwarding device. The web forwarding device is msitivcly geuml to keep this accurate and dclinitcspcml ratio with the printing machine.

The web-forwauling device mm be arranged at any point in the trlu'r-l ot the wcllrcyl nd tluprinting mechanism to supply the wch for further manipulation at a t'lm'lztil. and 1 rnpcr syn-ed.

The wt-ll-lorwarding dcvic. is usually placed hetwcen the folder and the printing mnchin although part of the folding machine, as, for example, the positively geared nipping and drawing rolls nt ll'le nose of the former, am he usul f r this pnrymsc.

The only requisite oi the \t'i-h-lorwnrding (ltViC is that it shall hnvc a definite speed ratio with the printprinting machine in such manner as to correct the errors, in the way previously described, and to pass the web on at proper speed. for further manipulation and that the web shall I; led ircely through the ma.- chine from the supply, that is, from the web feedingin device (when that is used) to the web forwarding device, so that when the margins 01' the plate register the web will be released, so that the adjustment of the web previously described can take place.

Having thus fully described my invention, i-rhut I claim and desire to 56(1'6 by Letters-Patent is:

1. The combination nltt: a rctnrfwebpertnctlug prlntleg press ln which the plates are set no that the mnrglns will register and ln which the web is led freely through the press so that when the rnnl'glns o! the plates reglster llic. wel; \Vlli be released, of a web torn-nrdlng devlce lmv in: :r fired speed ratlo wlth sold prlntlng mnchlnc arrnnged to lllIO on the web coming from the printlm; ninchlne and to forwnrd the same for further lnanlpnlatlon at a constant speed.

mhlnatlon with a rotary web'pct'l'ectln print.- in which t"-. platen nl-c set :40 tlmt inc nungins will r gister rlznt in which the web is led freely \hronm liupress so that when the margins of the plate et. 251:! th web ivili be released, 1; i lll li fl', and it Web furwunlln: lltvlt'l arranged between the printing llLllLlliDt! um: folder and hnvin: a lixed speed ratio with suld println; mnclllne and folder, whereby snid fm'wnnllill; dei'lce will furnish the we! at proper speed to the folder;

2. The cl-nrhinzltlon uirll a rotary web prlntl m; machine in which tluplates are set. so llut the rnnrgln wlll rcglntor, of a l't-ldl-r. :1 \\'el--t'cedin;: dcvlce bctu-ccn Llsc 'web-rcll and prinlm', mm-hlnc, and n web-forwarding devlce nr mnccal between the prlmln; machine and folder and MV- inn n llxcd s n-ed rntlo with snld prlntlng muchlne luv] llllkl wlu'l-lu' su'll forwnl'dl ng device wlll Kurnlsh the won an prnpvr spccd to the folder. f

1. l'llc mmhlnntlon with :1 rs-tnry w -hqu-rl'l-ctln r printin: nun-nine in lllt'll the plums are s't't so illflt lllfl mar- :llm wil register and in whlrh the web is led fl'ecly through he machine so that when the mn'gins "1' the plan-s l't-L'hl -r the well will he rulcnsml, and n positlvely :l-nrml-u'c (orwurdln: dcvicc arranged lll'iVlP the nrlfltin mm-hlne and toldcr and hnving u fixed speed r.\.lo with snlrl printing mzu'l lne and tol lcr.

.i. The mmhinzltlon with n l'nlz\ l'y well [)tEll'tt'lllL: prlntlug: mnchlne in \vlllrh the plattset Nu that the nun-- tween lllr' snlnrwltl l'cglstcr, of n l'olller, l|ld n 'dlng (ll-v ce consisting of u cyll'n lcl-Tmlcoi r l 'll'l -luc u the prlntlng "urchin: and fnl'llt-r, mid cylinder lit-in: ;.',c:lrc\l to have n lixwl rqn' ll rullo with Mold printing machine and folder".

i. The cull hilmtion with a rotary \vclz-perlcctlnt: lll'il 1- ing machlmin lvlllch the dull-s :mset no that thrmur- ;:lns n'lll l'rginlm', or n folder. it poslllvvly gl'lll l'll f'm-d -ip In llcvlrlfor feeding the well l'orwnl'rl from the Wlll oll to the printing nulclllnc. and n p mlla'vt-ly ,u-arud' '01) Jurill)