US2112587A - Web perfecting rotary press - Google Patents

Description

March 29, 1938. H. M. BARBER 2,112,587

@ WEB PERFECTING ROTARY PRESS Filed. April 9, 19:51

INVENTVOR WWW l 77/ ATTORNEYS Patented Mar. 29, 1938 2,112,587

UNITED STATES PATENT. OFFICE WEB PERFECTING ROTARY PRESS Howard M. Barber, Pawcatuck, Oomn, assignor to C. B. Cottrell 8; Sons Company, Westerly,

B. 1., a corporation of Delaware Application April 9, 1937, Serial nn asssz 8 Claims. 21. 101-179) In high speed web perfecting rotary presses with each other at the required distance apart where quick drying inks and web drying units are and they are also preferably located in substanemployed, it is very desirable that the several tially the same horizontal plane. units be so located with respect to each other An oil ofiset mechanism l l of a well known or as to produce the best results while occupying a app ved form ay b sed for the P p Of 5 minimum amount of space, keeping the packing clean on the second impres-' The object of my invention is to so locate the S 11 cy der 5 and e inat g ot Only Smut printing and drying units and the web supply that might be caused when the web is not abroll that the web can be fed and printed and the solutely dry, but will also remove from the pack- 10 inks dried with a minimum travel of the web. ins any dri d parti l s f nk t at may be picked 10 My invention comprises, generally, first and off by the make-ready when receiving the imsecond multicolor printing units and first .and D si om the S co p n n unit. second drying units, each printing unit consisting The first drying unit is herein represented as of an impression cylinder and a plurality of form compr '3 large heating cy der d W10 15 cylinders (in the present instance four form cylsmall cooling cylinders l3, ll. 15

inders) arranged in each printing unit around The second drying unit is herein represented a the side of the impression cylinder opposite a mprisin a lar hea in yl nder l5 and two drying unit, inking mechanisms for the form cylsmall cooling cylinders l6, ll. inders, said printing and drying units being all These two drying units are located in substanlocated in line with one another and in substantially-the same horizontal plane in line with each tially the same horizontal plane, an oil oflset other and the printing units and said supply roll. mechanism for the second impression cylinder, The first drying unit is located between the first and a web supply roll. Means are provided for and second printing units and the second drying passing the web from the supply roll to and unit is located beyond the second printing unit.

through the first drying unit, then to and through located at the opposite end of the press from the the second printing unit, then to and through point of delivery and in line with the several the second drying unit, and finally directing the units. web in the desired direction, as, for instance, to a The web is led through the press as follows: delivery point at the end of the press. The unprinted web passes from the supply roll I8 A practical embodiment of my inventionis repto and through the first printing unit where the resented in the accompanying drawing, in which web is printed in multicolor upon one side therethe figure represents a diagrammatic side elevaiof. The web is then led to and around the heattion of my invention where a single web is pering cylinder l2 and cooling cylinders l3, M of the fected. The first printing unit is herein reprefirst drying unit. From thence the web is led 35 sented as a four color unit, the impression cylto and through the second printing unit where inder bein'g denoted by i and its four .form cylthe web is printed in multicolor on the other side inders by 2, 3, 4, B, which form' cylinders are thereof. The web is then led to and around the arranged around the side of the impression cylheating cylinder is and cooling cylinders l6, l1

40 inder opposite a drying unit. The inking mech- 0i the second drying unit. The perfected web 40 50 sion cylinder opposite a drying unit. The inking P uced.

anisms for the tour form cylinders are denoted by may then be directed from the second drying unit 2a, 3a, la, in, which inking mechanisms apply in the desired direction. the inks to their respective iorm cylinders in the The means for driving the several units is not usual manner, shown or described herein, but any well known The second printing unit for perfecting the ppr v means m y be mployed. It is un- 45 web is herein represented as a. four color unit, the tO h the first and Second units y be impression cylinder being denoted by 6 and its r ven epara y either for h D n'POSeof mak- Iorm cylinders by I, 8, 9, III, which form cylinin; ready or for permitting a single or two sepders are arranged around the side of the impresarate non-perfected multicolor products to be mechanisms for the form cylinders are denoted It is to be understood that guide rolls are proby la, in, 9a, lla,'which inking mechanisms apply vided for passing the web in prescribed paths the inks to their respective form cylinders in the from the w supply r ll Hi to h d v p ntusual manner. It will also be understood that any suitable These two printing unitsare located in line heating medium, such as steam, may be supplied 55 through the first printing unit, then to and The web supply roll is denoted by Hi and it is to the heating cylinders l2 and II and that any suitable cooling medium, such as water may be supplied to the cooling cylinders I3, I! and II, II.

Itwill alsobeundersmodthat anywell known or approved quick drying inks may be used in the printing units.

From the above description it will be seen that I have provided an arrangement of the several units of the press whereby the inks on the freshly printed sides of the web may be thoroughly dried with a minimum travel or the web, the form cylinders of the two printing units at the same time being so positioned that ready access thereto may be obtained.

It is evident that various changes may be made in the form, construction and arrangement of the several parts without departing from the spirit and scope of my invention, and hence I do not intend to limit myself to the embodiment herein shown and described.

What I claim is:

1. In a web perfecting rotary press, first and second multicolor printing units, first and second drying units, the first drying unit being located between the first and second printing units and the second drying unit being located beyond the second printing unit, each printing unit comprising an impression cylinder and a plurality oi iorm cylinders arranged around the side or the impression cylinder opposite a drying unit, a web supply roll, and means for leading the web therefrom through said units. 7 y

2. In a web perfecting rotary press, first and second multicolor printing units, first andsecond drying units, the first drying unit being located between the first and second printing units and the second drying unit being located beyond the for leading the web therefrom through said units.

3. In a web periecting rotary press, first and second multicolor printing units, first and second drying units, the first drying unit being located between the first and second printing units and the second drying unit being located beyond the second printing unit, each printing unit comprising an impression cylinder and a plurality of form cylinders arranged aroundthe side or the impression cylinder opposite a drying unit, said printing and drying units being located in line with one another and in substantially the same horizontal plane, a web supply roll and means for leading the web thereirom through said units.

. 1 HOWARD M. BARBER.

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