US1170209A

US1170209A - Paper-lubricating device for printing-presses.

Info

Publication number: US1170209A
Application number: US48762909A
Authority: US
Inventors: Henry A Wise Wood
Original assignee: Wood Newspaper Machinery Corp
Current assignee: Wood Newspaper Machinery Corp
Priority date: 1909-04-03
Filing date: 1909-04-03
Publication date: 1916-02-01
Anticipated expiration: 1933-02-01

Description

H. A. W. WOOD. PAPER LUBRICATING DEVICE FOR PRINTING FRESSES.

Patented Feb. 1, 1916.

3 SHEETS-SHEET] APPLICATION FI'LE) APR. 3, 1909 L17Q209.

H. A. w. W000. V PAPER LUBRICATING DEVICE FOR PRINTING PRESSES.

APPLICATHJN FILED APR. 3,1909. 1,17%,209. Patented Feb. 1, 1916.

3 SHEETS-SHEET 2.

AWWE V615 P/Wi'x Ww/MJamx H. A. W. WOOD.

PAPER LUBRICATING DEVICE FOR PRINTING PRESSES.

APPLICATION FILED APR. 3. 1909.

1,170,209. Patented F0111, 1916.

3 SHEETS-SHEET 3.

;;,- STATES PATENT orrrcn.

HE RY A. 'WISE W001i," or NEW YORK, N. Y., ASSIGNOR, BY mnsnn ASSIGNMENTS, 'ro

" WOODNEWSPAPER MACHINERY CORPORATION, OF NEW YORK, N. Y., A CORPORA- TION OF VIRGINIA.

PAPER-LUBRICATING nnvrcn FOR rmnrme-rnnssns.

Patented Feb. 1, 1916.

Application filed April 3, 1909. Serial No. 487,629.

0 all whom it may concern:

Be it known that I, HENRY A. \VISE \Voon, a citizen of the United States, residing at New York, in the county of New York and State of New York, have invented a new and useful Paper-Lubricating Device for Printing-Presses, of which the following is a specification.

The object of this invention is to improve the operation of printing presses, particularly those which print from a continuous strip or web. In machines of this character,

the web ofpaper is led over anumber of rolls, the surfaces of which move at the same speed as or slightly greater than, the paper and the web is also led over a. number of stationary surfaces such as deflectors, angle bars and longitudinal formers or creasers over which said surfaces the web frictionally runs or slips. When the web, particularly the printed surface of the web, turns over a roller or guide which moves therewith, the freshly printed surface of the web sticks to the surface of the roller and considerable strain has to be put upon the web to pull the same from the surface of the roller, although the surface of the roller moves with the web. When the web runs over a stationary surface such as a turner, a deflector or a longitudinal folder, it takes considerable tension to overcome the friction of the web thereon and obviously the friction of the web thereon tends to smut or smear the freshly made impressions. These factors singly and combined render it necessary to put the web under considerable tension, which tension increases as the speed increase and which may become so great as to break the web. These factors therefore limit the speed of the machine and tend to damage the impressions. Another difficulty which is encountered in running a web of paper rapidly through a printing machine is that the friction is apt to genera,- static electricity which causes the paper to cling or adhere to the surfaces over which it passes. This also increases the tension and the liability of the web to tear or break. This factor can be largely overcome by the air lubricating method herein described and when extreme electrical conditions are encountered, steam or water vapor can be introduced into the air which is forced through the apparatus so that the vapor will tend to dispel the electrical charges.-

The principal objects of my invention are to provide means whereby the strain on the web and the liability of the same to rupture are greatly diminished and not only is the smutting of the impression largely eliminated, but the rapidity of the setting or dry ing of the printed impressions is greatly increased, whereby the speed of the machine can be increased and the character of the work improved.

My invention can be worked out in many detailed forms and I have shown in the drawings forming part of this application, one application by which the principle of my invention can be practised in connection with a standard newspaper web printing press.

Referring to the drawings and in detail, Figure l is a diagrammatic side elevation of a web printing press and folding machine illustrating diagramma-ticallythe application of my invention thereto. Fig. 2- is a side elevation on an enlarged scale showing part of the pipe line that is employed to direct air to the inside of the various web guiding urfaces. Fig. 3 is a diagrammatic side elevation illustrating the pipe line which is employed to direct air to theturner bars and folding mechanism. Fig. 4 is a front elevation of the folding mechanism. Fig. 5 is a sectional view taken on the line 5-5 of Fig. 3 illustrating the construction of the longitudinal former. Fig. 6 is a sectional view illustrating a construction which may be used so that air can be introduced into one of the journals of the rollers. Fig. 7 is a modification thereof by which a heating device for the air can be placed directly in the roller. Fig. 8 is a rear elevation of the turner 0r deflector bars. Fig. 9 is a view of a shield which may be employed with a guiding roller to cover up the surface thereof which does not contact with the web, and Fig. 10 is a modification hereinafter described. showing a difierent way by which the thin lubricating film of air can be introit will be seen that I have shown my invention as applied and adapted to an ordinary two-deck newspaper printing machine. The web w for the lower deck is drawn from a web roll WV, is led around guide roller 11, adjustable guide roller 12, guide roller 13, guide roller 14, around the first impression cylinder A, around the second impression cylinder B, around guide roller 15 to guide roller 16. The web is slit into two sections w and w by a slitter S and a line of paste may be applied to the center of one of the two sections of the web at this point if desired. From this point the section to of the web is deflected laterally over an angle or turner bar 17 and then is brought back into the path of the section w of the web by another angle bar 18, whereby the two sections of the web are associated or phcated. From this point the plicated webs are led around a guide-roller 19, around an adjustable guide roller 20 to a guide roller 21 and then down over a longitudmal former F. One or more decks or similar printing presses may be arranged aboye the one previously described and one section of printed web 'w therefrom may be led directly to the guide roller 21 and the other section of therefrom after passing around roller 160, adjusting roller 161, roller 16 and the angle or turner bars of this press, may be led around adjustable guide roller 22 and roller 23 to the roller 21 so that the web or webs printed and associated in the second deck can be associated with the Web or webs printed and associated by the lower deck. The associated webs are drawn down over the former by rollers 2 124 and 25 25 and thus are given a longitudinal fold. From these rollers the associated and folded webs are drawn between a folding and collecting cylinder G which may be of any of the ordinary constructions and cooperat ng cutting cylinder H. The collecting cylinder Gr may be provided with rotary folders which may act to give the severed sect1on of the webs a transverse fold in between the foldingrollers 26-26,- from which point the folded product is delivered by a rotary deliverer 0 operating in the usual way. Cooperating with the first impression cylinder A is a plate or printing cylinder 0 and cooperating with the second impression cylinder B is a plateor printing cylinder D. Cooperating with each of the printing cylinders is an ink drum E from which ink is taken to the plate cylinders by the usual form inking rollers and cooperating with which drum is an ordinary ink supplying mechanism consisting of an ink fountain, vibrating ductor, roller and ink distributing and spreading rolls.

As thus far described, the parts referred to are intended to designate and particularize the instrumentalities which go to make up a newspaper web printing press. It will be seen that as each web runs through the machine, it contacts witha number of surfaces which move with it and also that it slips or runs frictionally over a number of stationary surfaces. Thus in the case of the web in the lower press, the same has to run substantially with seventeen different surfaces or parts outside of the impression cylinders A and B; to wit, rollers 11, 12, 13, 14, 1.5, 16, 19, 20, 21, 2 t-24, 25-25, cylinders G and H and rollers 2626. It also will be seen that the web or a section thereof has to slip over three stationary surfaces; namely, turner or angle bars 17 and 18 and the surface of the longitudinal former F. Obviously, this holds the web back, puts the same under tension and smuts the impressions. The freshlyprinted surface of the web is particularly apt to stick or cling to the surfaces with which it contacts in its path beyond the roller 15. The engagement of the web with the surfaces specified also is apt to generate static electricity which causes the web to vcling to the surfaces. These factors additionally cause a drag on the web and smut the freshly printed impression. The web is'particularly held back by the friction of its passage over the turner bars and over the surface of the former over which surfaces the web necessarily has to slip. These points are thus described in detail in order that it may be clear what considerable factors of resistance and smut the web encounters in even the simplest form of web printing press.

The invention can be practised in very many ways and I have shown the same as practised in connection with the web press previously described by providing a source of air pressure; by perforating the cylinders -over which the web passes and connecting the source of air pressure to the journals of the cylinders by making the former double walled; providing the surface thereof over which the web runs with minute perforations; and connecting the space between the walls of the former with the air supply. I also preferably make the fingers or arms of the rotary deliverer O hollow, provide the surfaces thereof which engage the folded product with minute perforations and connect the journal of the rotary deliverer with the air supply. In this way, the advantages previously pointed out are easily obtained. The following is a detailed description of this arrangement.

M designates a suitable motor which may be the motor which drives the press or any other source of power. This motor is connected to operate an air pump P of any kind. Extending from the eduction of the air pump or from an interposed storage tank T is a pipe 30 which may rise vertically of the press. -Connected togthe pipe 30 are pipes 31 which extend along horizontally journal of the at the side of each press, as many pipes 31 being employed as there are decks to the machine. 'Extending from the pipe 31 are branches 32 each of which has a valve 33. A branch 32 is provided for each of the

rollers

11, 13, 14, 15 and 16. connect to boxes 34 in which the journals of the guides are journaled, as shown in Fig. 6. The guide rollers are made hollow as shown in Fig. 6 and the journal of each onethereof on the side of the machinewhere the pipe line is arranged is made hollow or in the form of a tube so that the air will be forced inside of the roller. Each of the rollers is provided with a large number of minute perforations V, as indicated in Fig. 6, so that the air will be forced out between the web and the surface of the guiding roller. If desired, a shield or partially cylindrical plate X may be arranged to bear on the roll, as shown in Fig. 9 to leave exposed only enough surface of the roll for the contact of the web therewith so that there will be no waste of air. This shield may be faced with cloth or any suitable surface so as to close tightly the perforations in the roller which are not engaged by the web. The pipe line 31 is extended up at the end of the machine as at 35 and is provided with valved branches which connect with the ends of the turner bars 17 and 18. The turner bars 17'and 18 are made in the form of tubes having their ends closed. hat portion of the surface of each turner bar which is engaged by a section of the web is provided with minute perforations extending to the inside thereof so that air will be forced out, between each turner bar and the engaging surface of the web. The pipe line is also extended as at 37 and is provided with valved branches 38 which communicate with the journals of the rollers 2424, rollers 2525, with a journal of the collecting and cutting cylinder G, with a cutting cylinder H, with the journals of the folding rollers 26-26 and with a journal of the rotary deliverer 0. These rollers and cylinders are made hollow and the surfaces of the same are provided with minute perforations as previously described. Shields may be used around these rollers or cylinders if desired to expose only the perforations therein which are in engagement with the web.

The arms of the rotary made hollow and are connected with the hollow journal thereof and the surfaces of said arms which engage the folded product are provided with minute perforations, as shown in Fig. 4, so as to prevent sticking of the product with the engaging surfaces thereof. The pipe line is also extended up as at 39 and is provided with valved branches 40 which communicate with the journals of the

rollers

19, 20 and 21 which may be arranged These branchesv deliverer O are and constructed as previously described. The extension 39 is also provided with a valve extension 41 which connects to the former F. The former F is made doublewalled, as shown in Fig. 5, and the extension 41 connects to the space between the walls. The surface. of the former where the web engages the same is provided with mi nute perforations so that a film of air will be kept between the web and the former as the web is drawn over the same. T he perforations in the various parts may be proportioned and distributed over the surfaces so as to lift or separate the web therefrom evenly or as desired from the surfaces.

In some cases it maybe desirable, for the reasons previously stated, to introduce Watervapor into the air which is forced out through the parts of the machine. This can be don by supplying steam or water through a pipe 42 to the pump. Or if it is desired to supply the water vapor or steam to any one part as to a particular roller or surface, the same ,can be accomplished by introducing a nozzle, as indicated at 43 in dotted lines in Fig. 6, into the branch pipe communicating with the particular surface. In some cases, it may be desired to heat the air. This can be done by heating the air before or after it passes from the pump, or if it is desired to apply heat only to a particular roller 'or surface, the same can be done as shown in Fig. 7 by providing the inside of the roll with a heating wire 44 which can be arranged in suitable insulating bushings and the ends of which are extended out through the journals for connection, to a source of electricity. In this way, any particular roller or surface can have heat-applied thereto so that the air driven out through the perforations thereof will be heated or warmed. If desired, heating coils can be placed inside of the turner bars 17 or 18 or inside the space in the former F.

In some cases, instead of introducing the film of air into the inside of the roller and letting the same out through perforations in the periphery thereof, the film of air can be introduced by a suitable nozzle or nozzles 45 arranged to blow a film or blast of air between the surface of the web and the guiding surface as they move either or both toward or from each other, as shown in Fig. 10. t

Many other different devices, apparatuses and connections can be devised by a skilled engineer for applying the principle of my invention to different forms of printing presses. I have only shown in this applica tion what I now believe to be the best form for practicing the invention. The details and arrangements herein shown and described may therefore be greatly altered without departing from the broad scope of the invention as expressed in the claims.

Having thus fully described my invention. what I claim and desire to secure by Letters-Patent is 1. The combination in a .web printing press, of a hollow rotary roller over and pa rt-way around which the webpasses substantially in contact therewith, said roller having perforations in the periphery thereof. means for constantly forcing air into the interior of the roller and out through said perforations, and a solidshield engaging the perforated surface of the roller where the same is not engaged by the web.

2. The combination of a hollow longitudinal former or folder having a broad flat surface for engaging the web, said fiat surface having perforations throughout its area, and means for forcing air into the space in the'former and out through said perforations.

3. The combination of a cutting cylinder having means thereon for severing a web into sheets, and means for introducing a current of air between the surface of the cylinder and the web directly against the web on both sides of the cutting line during the cutting operation.

4. The combination of a collecting cylinder, and means for introducing a film of air between the surface of the same and the web to hold the web from'intimate contact with the collecting cylinder.

5. The combination of a web-"printing press, means for introducing a supply of air under pressure between the web and a surface or surfaces over whichthe same passes,

and means for injecting steam or water vapor into the air before the air is introduced between the web and said surface.

(3. The combination with a hollow cutting cylinder for a rotary Web press having a cutting blade thereon and provided with perforations through the convex surface thereof, of means for directing 'air under pressure into said cylinder and out through the perfo 'ations.

In testimony whereof I have hereunto set my hand, in the presence of two subscribing witnesses.

MARY E. MCCADDEN, ORRIN B. WALTERS.