US2375397A - Rotary printing press - Google Patents

Description

Mayv 8, 1945. `w. A. wHlTEHx-:AD

' ROTARY PRINTING PRESS Fild May 3Q, 1942 2 sheets-sheet 1 i 7km HUH y l U iv f E.

May 8 1945 w. A. wHrrHEAb I 2,375,397 K ROTARY PRINTING PRES S Filed May zo, 1942 sheets-sheet 2 Patented May 8A, 1945 l l v 2123745713971 l y Romani. PRINTING PRESS' William Arnold Whitehead;PrestomEngdand, asf-4,v s

signorr to The Goss Frinting lPress Chicago, Ill.,` acorporaton 'ofllli'nois Applicatioh'May 3o, 1942,Swinnen/15,115.

In emmav Britain July 28,1941 5 Claims. (ci. 10i-350).,"

This r invention relates f to vrotary `printing presses and is more particularlyconcerned with such presses in which `the ink is suppliedto the distributing cylinders and forme rollersby ymeans of'pumps. i

It is an object of this invention to arrange the box enclosing the ink pumps' so that awkwardly projecting or `extending vparts which both impede the operatorandy obstruct the gangwaysfof the pressroommay beeliminated .or atleast reduced by a substantialfextent. S

It is another object of this invention to provide a form-of mechanical remote-.control for each individual pump located andarranged ina s,

convenient position for the operator vvl'rile'A being f1 of simple construction and operationsv A further object-of the invention is to provide novel and improvedfmeansl for exposing the pump mechanism to view yfor the purpose of n inspection, repair or replacement.

' Other objects off'the invention will be clear from the following :description of an exemplary embodiment thereof as applied toa rotary print" ing press in whicha 'single printing v couple is designed to print a web of newspaper of a; maxi- ,mum width equivalent to :four pages', each `page having al maximum 0f. eight columns. of type.r y 1 VIn said drawings- .-z ,Y fr 1 ,Figure 1 is anend elevation,partlyin section,

showing one of the pressframe endmembers, the.

Wheel. guard and the ink pump! box;fand Figure 2 is a side elevation, tion,ofFigure1. l ,Y

It is customary tofenclose the gearsy of,` the Vin-k distributing and formey rollers `within :a Wheel guard secured to thepres'sframe. {With the foregoing objects in View and in accordance with the present invention, the inl; pumpl mechanism also partly in secaccessible for inspection, replacement or repairs and thus avoid the need for av removable ,cover for the pump. T

. Where the box is extended from beneath-the Wheel. *guard it may beformed with va panel to accommodate the: several ink control or indicator devicesxusually provided with suchpresses'... For example,V `the panel may accommodate a main l ink supply cock, a float-controlled ink-level indiv--` cator andv where means are provided for ricon'- trolling; the supply of ink to a plurality :of coluanns of` newsprnt'the controls thereforf f Suchl means may.consis.t lof yvalve barsvvhich are positioned 'to determine the quantity of ink supplied-to the several.- columns of type for producy,

ingha rsingle page ofy newsprinteachof .the valve bars beingoperable by means of .an eccentric on `a rodor shaft projecting .through the panel and; havingya manually actuable. knob on its upper end. r

Referring now tothe drawings the press frame` comprises end, members L0, of which one isfshowni ,Y

inthe drawings vand in which are ijournalled the impression cylinder l2; type cylinder 14, and a train yof distributor and' forme rollersor drums lli,l I8I 20, 2 2; `24 and: ZBbyiwhich ink is supplied to lthetype cylinder of the printing couple. The

distributor land forme roller shafts are extended is arranged in a.v box or casing attached to the press frame in line'with the` wheelsguardinthe vertical. sensesc that lsaid :box does notsextend horizontally or to. anyV substantial extent. horizontally beyondthe wheelguard. 1. Eaclrpump is provided with` an adjustable controlling; rody or screw extendingupwardly vfrom the pump box and projecting from the ywheel guard casing at a readily accessible position, the rods lying within the area over which the wheel guard isl situated. The wheel guard maybe extended either'directly or by means of one or more auxiliary plates to f` enclose said' rods and toform a 'cover for fthe pump box. Such'an' arrangement enables the pum-p box and a distributing rail 'associated' therewith to' be lmoved: as a unit relatively A)Lo-the jpress :tramey in order to leave `thetmechan-is?m`v -rez'tdily` through the end press frame membersandhave secured thereto inter-engaging `gears 28 30,. 32

34,36'andy381by which they are driven fromuthe main press drive, the-type and impression,cylin ders being coupled through gears '40 and.42v to lthel gear 28. V, Anoilwbath 44 is provided near the1 base-of .each lframe .to provide for lubrication of t the gearsand each gear trainis enclosed within' a Wheelguard 46, attached to the .corresponding press frame member asfby means of bolts 48,.,

, Located adjacent thelower lend of onev of the press lframemem-bersis a box-or casing 50 within .which the` ink pump mechanism is arranged and ywhich ,serves asa reservoir for the ink. Secured immediately beneath .the pump box is ay rai1`-52 vtothe distributing face of which the ink is-con` y :veyedby means of. aA plurality of ports 54 of small bore, the inkbeing supplied, to said portsbyy means-of ya plurality of pumps arrangedwithin "thef'pump box., *In this `embodiment there are thirty-two pumps, one foreach of .the-columns of type matter, Varranged' in four rows with y'eight pumps iin each row. The outlet ends :of lthe ports lSli' communicate with pipes 56 which" convey the ink to the distributor roller 26 and the'pipesfare preferably'spacedcn the pump ra-i12 sothat'rea'ch c' is locatedv approximately centrally of the corresponding column of type. l

The pump arrangement ings is of a, conventional type for use with printingV presses andswill therefore be described only,` l in suchV detail as is necessary for ak full under-` "standing of the present4 invention. Arranged within the" pump box 50]'is a frame 58ghaving a` plurality of apertures therethrough in vwhich are guided ra plurality of plungers 68, there 'being'l one plunger for each column of type. A coiled;

illustrated in the draws spring, 62 `is i'ltted about the upper end of each y of the plungers and is ycompressed between the frame 58 and a collar |54y secured tothe plungen Upward movement of eachplunger under the'efH-. fect of its spring normally isrlirnited by a' furtherv collar 66 secured to the plunger and abuttingthel l lower face of the frame 58. "I "he lower-,end of;L f each of `the plungers is located within aport orL f aperture in a frame 68 mounted in gudeways 10" arranged Vwithin the base of the. pump casing.l

Extending upwardly fromthelower frame. 68 are' a pair of guide posts 12 which passfreely through correspondingly arranged apertures inthe upper vframey 58, the arrangement being/suchfthat the two frames are movableasla'unit. laterally ofthe; machine while the upper frame is relatively Ver-3v and lower frames |82, |84 within the wheel guard 46 and at their upper ends project outside said 'guard through an opening |66 therein, being pro-` videdwith knurled heads |88 by which they may lbe rotated. The heads |08 are in threaded'v en'- gagement with the frame |04 so that upon rotation of the rods 98 the heads are vertically adjusted towards or away from the plungers. 'I'he knurled heads are preferably arranged at a convvenient'height to enable the operator to control the supply ofink from each pump without bend- `ing or .stretching and the wheel guard forms an efficient vclosure for this mechanism.

' -In addition to the provision of means for controlling the supply of ink fromeach pump, there are also'provided, for the purpose 4ofl controlling or cutting off the supply of ink to a row of .pumps @supplying one page ofnewsprint, a plurality of valve barsl IIIJ which are arranged to slide in channels in the base of the pump-casing. In the particular embodiment illustrated there are yfour such bars, and theyare formediwith apertures H2 therethrough bywhich the ink is fed V.from the pumps tothe ports-.in the pump rail. The bars aremovable in a horizontal plane at right'- b angles 'to the direction of oscillatory movement tically .movable with respect to the lower frame.

Co-'operating with grooves or 4channels 1.41 formed inthe upper face vof theframe 58 area pair ofeccentrcs 16 to which rotation is imparted from the main press drive. Forlthispurpose the spindle of the forme roller 24 is extended beyond lthe gear 36 to carry a worm.. 18. which meshes I with a wormwheel 80 secured to a shaft 82. `car-` ried in bearings V84 in the `wheelguard 46. The' shaft 84- also yhas secured theretoa pinion 86 which meshes with an idler gear 88 in turn mesh-l ing with'a pinion 90, Vthe latter driving a; pairof vpinons 82 fixed on the shafts of the eccentrics whereby the drivetof the pumps mayv befdisconfl A hand controlled clutch isshown `at :94

nected without the need for stopping the press; l 1 Rotation of the eccentrics through themechaf` nism rdescribed Aabove causes the upper` frame '58 58 andthe plungers, the lower frame is'moved to place the'aperturesv in communication with ink channels 96 in the casingand during `thedown ward movement the lower frame is returndrto the position shown'in the drawings'so that the ink within the 'aperturesin'said frame f is forced bythe plungers through rthe ports v54- 'into' the pipes 56,' these alternatev suctionY and-discharge strokes of the plungers beingcontinuedunder -control of the clutch 194 to provide a constant supply ofy ink to the distributor drums and type cylinder.v .Y r i 'Iocontrol the supply Yof ink from each indi#- vidual pump, means are provided vforvarying thestroke rof the plungers `60. Such,rneanscomprisea plurality of, manually operable adjusting rods 98, one for each plunger, having heads;v |08 at their lower ends adapted to abut theupper ends @the plungersrdurinathe upward stroke of Yth@a latter-frm rods are vertically;arredgin; upper pump box.

' scribed,.are adjustable #totvaryingfheights.fl3e

of the frame 68 and each has` extending there# from a horizontal rod `I i4 which is eccentrically connected at IIB to-thellowerend. of a rotatable shaft H8 extendingaupwardlywithinlthe panel `I2() vwhich covers `a. projecting portion. of the pump box Vand this panel'is of Ysuch dimensions Aas to accommodate a set-of manuallyoperable milled knobs |22 secured tothe shaftsv H8, a float indicator pointer attached to the float |24 to'indicate the level of ink in the reservoirland, preferably, a main inksupply cock. l

The ink may bek supplied to the lreservoir through a pipe (not shown) .coupled thereto and passing through a valve controlled by the supply cock, a lter and a valve ,|86 controlledlfby the To'provide ,accesszto'the pump box` 50.' for 'in'- spect1on,lrepair or replacement, the box and the pump rail mayv be 4slid rearwardly' (to the right in Figure .1).irom beneath the' wheel guard, thus leaving the upper face of thebox uncovered.- The pump plungers, v60, in .their mean position Aas shown inA the drawings, `will ybe seen to' project upwardly within' thewheelfgua'rd' and when'mov` ing `the latter it necessary toensure thai-,15am plungers do not strike. against the heads |00'cf the adjusting rods 982 which,r to control' the supply of inkto each individual; pump-as 'above-defore moving the pump box leither inwardly/lor outwardly, therefore,the frame 58. and theplungers must be in substantially their lowe'rmost posi; Y

tions so' that'the plungers Tv'will clear. the press frame and,l tolensure that thepump'boxfcannot be movedv far enough `to damage the plungers until the latterareinfthis position,4 coi-operable safety-stop devices are provided within the wheelguard and on thev pump 'fraiifit-r.` here ernbodied, these safety devicescomprisewa xedabutment |29 extending fromthe lower end frame |04l and a pair of springL-pressedpins -|28lseate`d in thepump frame58.A These pins projectfupwardlyiromthe frame 58 tonalheight such that one lor ,other (dependingonrthe directionif-of movement of thelooior willfenga'ge ille-abutment I not inthe lowermostpositiom klout will clearsad These shafts.. project through a 46 and that part of the box beneath the panelv does not project from the press to an extent sufcient to impede the operator or obstrut the gangways of the press room. Further, the wheel guard encloses and conceals the pump adjusting rods from view. The extension of these rods to a convenient position on the exterior of the wheel guard casing provides, in effect, a form of mechanical remote control which is convenient and simple in operation.

What I claim and desire to secure byLetters Patent of the United States is:

1. Rotary printing press having a printing couple for printing a plurality of columns of Ytype matter, means for conveying ink to the columns of type on the type cylinder, gearing for driv-` ing said ink-conveying means, pump mechanism for supplying ink to said ink-conveying means, a casing accommodating the pump mechanism and serving as a reservoir for the ink,4 a rail on said casing and means associated with said rail by which the ink is distributed on said ink-con-` veying means, and a guard for said gearing forming a closure for the pump casing, said casing and the rail being movable as a unit in the press frame relatively to the guard to expose the pump mechanism.

2. In a rotary printing press having a printing couple including a Atype cylinder for carryingl a plurality of columns of type, means for conveying ink to each of said type columns, a plurality of pumps for supplying ink to said inkconveying means, each of said pumps comprising a plunger working within va bore in a, pump frame, a casing for accommodating said pumps, gearing for driving said ink-conveying means and for actuating said pump frame to impart suction 'and pressure strokes to said plungers, a guard for said gearing forming a closure for said pump casing, said casing being movable in the press frame to expose the pumps, a plurality'of rods extending.

, 3 within said guard and adjustably` engageable with the plungers to limit their stroke and thereby control the supply of ink from the pumps, said rods having manually operable portions project-f` ing from said guard, a xed abutment within said guard,` and projections on the pump frame engageable with said iixed abutment upon movement of the pump casing except when said pump `frame is positioned to clear the guard. I

3. In a rotary printing press having means for supplying and conveying ink to each of a plurality of type columns, including a plurality of pumps, each pump comprising a plunger workving within a bore in a pump frame, means-for driving said pumps, an ink reservoir in which said pumps are seated and having a support on which said pumps are bodily slidable from a working position to an inspection position and means for securing the pumps in working position.

4. In a rotary printing press having means for supplying and conveying ink to each of a plurality of type columns, including a plurality of pumps, each pump comprising a pump frame, a plurality of plungers each Working in a bore in the pump frame, adriven actuating frame for the plungers, an ink reservoir accommodating the pump frames in working and inspection posie tions and in which the pumps are seated and a support on which the pump frames are slidable bodily from one position to another.

5. In a rotary printing press having means `for supplying and conveying ink to each of a plurality of type columns, including a plurality of pumps, each pump comprising a pump frame, a plurality of plungers each Working ina bore in the pump frame, a driven actuating frame for the plungers, an ink reservoir accommodating the pump frames in working and inspection positions, in which the pumps are seated and a support on which the pump frames are slidable bodily yfrom WILLIAM ARNOLD WHITEHEAD.

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