US1270779A - Printing-press. - Google Patents

Description

A. T. H. BROWER.

PRINTING PRESS.

APPLICATION min mi. 22. m1.

Patented July 2, 1918.

2 SHEETS-SHEET 1.

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A. T. H. BROWER.

PRINTING PRESS.

APPLICATION FILED mmz. k917- Patented July 2, 1918.

2 SHEETS-SHEET 2.

rilillyl A RAHAM T. HdfBROW ER or CHICAGO, ILLINOIS.

Premium-mess.

Original application fiied Novemb'er23 -T-all whomz't may concern:; i

Be 'itv kno'wn thatvLg ABRAHAM '11 H. B nownn, a citizen of the United statesg anc'l a resident; ofa'Chicago," county of Cook, and State oilllinois, have invented certain new and 'nseful Improvements in Printing- Presses, of which' the following is aspec'i- -'fication.1

t i The & present-applicationiis a i'di'visioii of an earlier application filed by me November 23; 19-12,;Serial1No: 733,165 for improvements in printing presses; which resulted a The invention relates" to. sprinting presses and particular-1v to proof :preeses of the bed andycylindermtype. T-he'dbject of the invention is ltorl'provide the dylindei' with miprovedvpaper guides and igt'ippersuwhioh will clear the-surface ofiithegstypel'ztnd of type-high-Yehases: uipon the type bed. [A

further object of- 'the invention is to pro-v vide means by? which the paper grippers May be releaseddeither automatically or by hand as desired.

'- ?Ihe invention consists in the featlires'of improvement hereinafter set forth, ill-us- V trated in itheipreferred form in the aeeompallydrawings' and more -pirticul1rlyf'pointed outin the i'appelided claims; 1

Figure 1 is an elevation wofathe r11f1tmg press -eylinder ."With the printing viinproveinents' applied thereto, the 'bedwandithe machine frame 'being shown xindcross' section. FigSJQI efid B F'are detail sections {011 lines 2 2 and 1-3-3 respectively of Fig. In :Fig. 4 is en' end' elevation of parts sliown in' Fig. 1. Fig. 5 is a, seetion dn the line 5+5of Fig. 1.

The horizontal frame of the' pTeSsiS provided at intervals by transverse webs Hand at its upper side portions with guide rails or tracks 12for the reciprocating bed 13.1 The latter isuprovided on its under side with longitudinal guide ribs 14. near its edges and "a centre]. vlongitudinal bearing rib and also 'With transverse strengthening-ribs.16.- The ribs 14 and tracks 12*are preferably groovedito iform race-ways for two sets "of bearing bells ili that are held in proper positionbyfipacefi bars 18. The centralrib 15 of the bed is arranged to enge%e a supporting wheel 19. he c'y'linder20 isnionnted above the bed upon ash'aft 21. The laments jOllllliiletl at its ends in hearings-1 tart-led -.by a pair :df

'inder; upon across shaft or rod '30 n'rrangedivithbrackets 22 that are bolted to and extend upwardly from the frame 10; The ends'bf the shaft are preferably provided with hand wheels (not shown) for rotating the cylinder. The surface of the Cylinder is recessed as usual, to receive the tympan and its entls areaprov ided with bearing flanges 23 which engage the bearers 24 fixed in the usual manher to the sides of thewtype' bed. A gear Wheel 25 fixed to one end of the cylinder meshes with a rack Qt-fixed "to one of the sideedges of the 158d1fi0 effect the forward and backward movements of thelattei' as the cylinder is rotated in oppositewdirectionsc a i' a a The cylinder is provided, as usual on 'one side with an OpeHing and bne' off (the edge Patented July 2,1913. 19 2, Serial No. 733,165. Divided and this a plication fiIe'd Jafiiiafy 22;1917. "Seria1N0.143,576. I

walls of this opening hits e series ofjiins for securing one of the tympans to'themyl- The ty'mpan clamps are mounted 'inthe cylinder andljournaled inwthe ends thereof atone end and outside at the 'cylinder. This shaift is-provided with an arm or. lever 31 which normally engages 5a Mg 32 to hold the tympan clainpsin position. The arm 31 is forrned 0f springsteePSd'that it can be shifted laterally into and out-o tengagemelit with "the lug 32.- The fiopp'osite ends 0f-the blankets forming-' th' tynopan pass around a pair' oftoothd reel 'rods 33 journaled within the cylinder adjacent the 28that cooperate with aserlesiof-blamps '29 opposite edge "ofr -the'fcylinder: opening.

These rods are provided withsqu'are shbinks 34: (see Fig. 5) which? project beyond one end of the cylinder and'are adaptedtO re ceive suitable tools for rotating the reel rods to draw the 'blarikets tightly around the cylinder. Ratehets "85 #and eoopereting spring-held pawls 36 prevent the unwind= ing movement of the reelro'dsQ A'sei'ies of grippers 37 forholding the leading'edge of the paper against the tyrnpan areinouiitedupon a rod 38 which is journale'd in the cylinder" endstind is ai ranged, as shown, near the edge-of the @521: inder opening. A] crank arm" '39 on on end of the shaft 38 is 'cohnectedtoa hooked end of a sliding bolt 4.0. The latter deem ranged to slide and alsoloscillatetoja sli lit extent through a stud tl fixed "to'tlie' inner face of the left -handlendof th'e yliiidif. A spring 42 coiled 'zvabmit this; rod extends between washers it that; beer reepefiti against the stud il and against a mit 44:

fixed to the end. of the bolt. The tension 7 of the spring 42"is thusiexertedto hold the 7 grippers 37 against the leading edge ft the tympan. The left-hand end Of thl gripper, shaft or red 8, is provided with of-the cylinder the shaftAG can the rotated a handle 45,' (see Fig; 5) by" which the grip -::pers; may be roscillatedand shifted to dis- V j engaged position.

i curved end of the .springbolt hooks over the ishaft' dr rod 38: so that the pivot pin -between the belt and thecrankarni 39 passes beyond a deadcenter position. The spring A2 then acts to hold the grippers away'iirom the-tym'pann The grippers are only-shifted; t0'-this**eXtreme disengaged"position when" iti'si desired to adjust the tympani" But .in- T l 'asn uc'h 'a sithe gripper springfis thns jai rangedvtoshift n' op'posite sides ofa dead? v ce'nter position it Willfa c't to "yieldingly: hold 1: I f the" grippers; both in the norrnal j position gaged position of the grippers the outer a lid' in the extrem'e disengaged position- "arm :or trip device 48. The lower end of V is prdvid ed with a handle 541m;

7 mgnanfenlarged netched hubkiiei' A'deg55' pivoted" on the ight-hand end ef the rod 49-;is pressed toward the netchedjhubjby a spring 56 which xextends'i between :the dog v and ,alug;5' 7 on thefiface bf the right-hand bracket 22e 1 The movement of theecceiitric caniA'Z andintervening arm LS is alimited in one-direction {by the engagement of the curved inward-1y projectingpendirof thejhan j idle 53 With-the: edgeflof the adjacent bracket 22,; In the oppositedirection; the movement efth'ese parts is limited hytheiengageme-nt ro fva" toerpiece 58,{(seeiFig "5)1'0n the'pivot end of the-intervening arm=orreleasing trip :"With the low; part": of the. 'ee'centric cam;

In 7 the extreme? disenthatith'e vripper .leased at the I end Ofithe' rturnedi'to' position tbfgll'lpl thei paper. the eylinder is moved; feriv ard to-{disengage theiroller 51;;frenf-the: inclined} cam fa'e' 50;

V -r Meansq is provided 'f'o'i' shifting 'the 'grip' pers te "a slight extent to release the lead" ing; edge-pfthe;gpaperfandsiichmeans is so" arranged that the grippersfinay. be released f eitheriantemati'cally rflbyj hand. A shaft 46: exteiidsfin:fr0nt of the cylinder and is ournalediatrits ends in the cylinder brack -I ets1=22z iAn eccentric cam 47; is fixedto the i left-handvendrdf the shaft 46 and thee'dge' 1' i (if thisicain engages the outercnrved edge e portion ofthe uppe'rie nd 20f airintervening 13:5"

j 1" the arm 48, is pivotally nioiintedfon across red. 14952 that extends. Ybetweenr' the cylinder r brackets and, on "its inner; edgeith ei nt'er-, veninggzariii or release' triplis provided with anxinclinedfarnfface 50; Theiinclined cam- 7 I; portion, 50' is arranged td ed'ciperate 'iwith 1a" a 4 '1'0lle1's51 on ;the endief 1: arm 45 2 thati is V i ,;fixedetoathe left-hand"'nd 'i'dfthe gripper shaft: 01" rod" 38'. j The shaft l 46 is provided at its} extreme left-hand: end; outsi Cite-" 0f the f V bracket-22 withafhandle53 ('s ee'Figy I) :j andfat'thegoppositeside 0fthemachine (seeu has; arm E62 fixed 'fithereteg fA a efishion 1 ates-:is provided 1 with that the "dog serves t "JtlOIlSJ In the position 1 shbi vnthe grippers must be released fbyihan f p A corresponding"? to 7' the ether not hes}; the" grippers are automatically released; and re; 2 1

prQVided with oppositely? inclined f fa ces so, i E, that the shaftlfi s and cam 47; can be read ly the paper comprise ser esj of u wsha p'ed 1- fingers which} are i m'oi nted up'o' shollldels 655 to aidfin accurately positioning 1' fianges 37 and willgtheriefcre =-c1ear thesur crrelease trip thev roller 51v0n thecrank arm' 52*Wi1l clear *the inclined cam vface 50 Sethat the grippers will not beauternatically released. But in the initial pesitio'nym a V 10h either side of, the machine by means of eithercfthe handles-"52wort53ito thereby v 7 force theupper end ;0f thea-rrn 4c8againsti; I J; the roller 51 so that the gripper shaftBS f is rocked against- :the tension of the; spring :42 torel'easethe grippers. paper-{may 'b6.th8111' plaeediin posit-ion oi'rthe cylinder p, with its front edge against'fthe gllldGS -pro- V I vided therefor and" then, {by releasinggthe. 86 V i I:

eccentric cam -4 7;;thespi ing' 4:2 Wi'll s it V; theii;gripper s to engage the,.paper. i 1

If, desired, {the eccentric i-cain" 4L7 can 7 be meansofiitheidogg] d of themaehi ne so I at i v mQmati aHyj-re- 1' V a rward mbye nent bf thecylinder and: will b automatically r i Of the interveningm The hub 54:; With which I turned orzadjusted as desired edg'e ef F I a i-rddf H 1 1' 611- extender-mind the edge'eff the icylinderi- Opening; This; red lis: purnaled in the ibfrthefcylinder and at'its Jleft handendi spr1ng1 63 extendsbetiiieen the end; (if this arm 'andqthe endf offwan 75 leeselyi 'inounted :upori 1 11 d? 61," the rangem'ent Ibeing -si ch that the" *arnii pressed by the spring :63 against? the? :der Wall. This spring iserves'"-td-iyieldingly";

diacent' 1 the edge of the cylinderafopening is ent so thatjfthe grippersl li'eywithin th J I periphery ofthe icylinder anthem-m 136 face (if the typ'e' and chase r pen the bed 13. *Means arerpwv'raea fojrshiftn g .tlreafrcnt paperggiades: 60 so that-they will also' elear an parameter the type Sfll'ifiideu :Fpr this concentric with-anemia; at -th cylinderfand I it i provided with'ginttrned careirpernons at its end -which engage and shrf; moller 67 eutwarctlyfana permit it 1 retumt miement to normal pdsition as tlaeilcy lilndereis rotated oppgsitedirections. The engagemeritof the *rolfer 6'? with the cam ledge 68 thus shifts the shaft 61 against the tension pressed...)

..cylin'cler' and hei -theroller 67 onthe arm e ms are aiaaaa arase into aupo'sition the details set ioflhitvithout departure from wthe essentials. of the invent-i der, suppbrtinfg brackets, of: paper grippers .earnield t ;by. ."Sfi.1d cylindenv a; i=eleasirig -tri p '01? said grippers "and a transverse, maamally lqperable'zrock shaft .journa'led in said: cylinde' r.-1 brackets for hactiiati ng mid adju sting saadi zrleleasl ng tti'ip;

,{said rock I sha thavin g operating handles troppositeisides ofilthe ,a; t-ltiilirj r y %2.-;:-In= 5a-aprintingnprdss,' the eombination with the frame, cylinder and reci rocating Iii 1 the spring *63 and estamentary; with *type bed, of a seriesaezf from pap gfiffd draws th f t id fingers 60 fhi mga irimifited on said cylinder and normally cylinder and holds them withdrawn so as to clear the type and all port ons of any typehigh chase on the bed during both the forward and backward movements of the bed and cylinder. A sleeve 70 fits over the rock shaft 46 and interlocks with the part 71 on the right-hand cylinder bracket 22 so that it is held against movement. The shaft 46, however, is free to rock within this sleeve. A series of brackets or collars 72 are fixed to the sleeve 7 O and a series of sheet guiding bands 73 are provided with doubled offset portions 74 which are riveted together and the outer looped ends of which encircle the rod 49.

. In operation, the paper sheet is placed on the cylinder with its leadin edge engaging the guide fingers 60 and t e shoulders65 thereof so that these will be clamped by the grippers 37 If necessary, the grippers are shifted by means of the cam 47 on the shaft 46 and the intermediate trip arm 48,

"direction to initial position. 05

as described before the edge of the paper is engaged with the uide fingers. As above noted, the interme iate trip arm 48 may be held in such position by the cam 47, that in the normal position of the cylinder the grippers will be held released but will engage the forward edge of the paper as soon as the initial movement of the cylinder disengages the roller 51 from theinclined cam face 50. The cylinder is then rotated to shift the bed and carry the paper on the cylinder into engagement with the type on the bed. At the end of a single revolution of the cylinder in forward direction, the grippers 30 are released either by hand or automatically and the paper is removed from the cylinder. The latter is then rotated in the opposite During the forward and backward movements of the spring-held in projected position, a fixed cam on the frame and a part on said cylinder cooperating with said cam to shift said guides inwardly and to hold the same in such position to thereby clear the type and type chase on said type bed as the cylinder is rotated.

3. In a printing press, the combination with the frame, cylinder and reciprocating.

type bed, of a rock shaft within said cylinder, a series of front paper guides carried by said shaft, a spring for holding said shaft and guides in normal position, an arm on one end of said rock shaft, and a fixed track on the frame concentric with the axis of said cylinder and having cam-shaped ends, said cam track being adapted to cooperate With said arm for shifting said guides inwardly, holding the same in such position as said cylinder is rotated in opposite directions.

4. Ina printing press, the combination with the frame, cylinder and reciprocating type bed, of a pair of spring-held rock shafts mounted within said cylinder, grippers and front paper guides fixed respectively to said rock shafts, the portion of the tympan surface engaged by said grippers being cut away so that the latter in normal position, are arranged within the cylindrical portion of the tympan surface, means for tripping said gripper rock shaft, an arm on said front guide rock shaft, and a cam on the frame cooperating with said arm to shift said front guides inwardly and hold the same in such position to thereby clear the type and type chase as the cylinder is rotated in opposite directions, substantially as .type lbed off a.- pa ir' -f of, spri ngrheld stock 1 shafts mount'ed within 1 said: cylinder; grippers' and front; paprguidelfingers fixd lre-, spectiysly. to :said' zrock shafts}: said. guide fingers having" shoulders in line "with rgtlie -tympan' surface of said cylindei' fbr rigagr ing" the jfrbnt edgebf thdpaper, al lrel'easi il'g i controlling said gu dei fing .stantiallynas:dscribed. s d a 6. amp ting Tpress, thez combination trip for said gripper rock shaft; :msans yfiir operatipg said trip and a cam onxthe fr'ams 1 rpck shafjy, Sdlb- Q r with theaframe; cylinder 1 and .nteciproqatifig 7. Inf'a printing; press 'Yvi thtstlief frsms c 1i (1 V trip i013 said? grippers iindmeans folfI o'pl rating" said; trip.- by; hand. arid for? 'adjilsbi lif ;rt;he*sameLtokoperativmp ion: to a u torha t vtype.=be' il 1: f a, spring-held rock shaft n'said 4 cylindei', arseries ofpape'ar grippers ongsaidt- *sha ft an arm on said rock shaft,' ja flreleasing trip onfohe frame coiiperatingwith said mp,- 25' foperativegppsition, and alooking dQg fb x 1'6 ieasably; securing said cam"- and trip in op "rativeiposition.

a 8.11! a, "running 7 press," .the ,combina tiqn-fiq Y Ewithjths-frame, cylinder, and reciprocating typbed',:ofua-rock.shaft'in said cylinder aj v I series of ,paper' gripprs gcarriedbyqsaid. rock shaftgian+arm on said-frock shaft, :and {a i spring- 'atuated-bolt in:saidcylinderzhaying 35 fa'urslfap'ed hooked end connectjsdto saidarm "iandwa'l mngsdto' hold said" grippers either in operative0r?in.inoperative position, isaidgu i.-; f

1 sh pdrend,;in;ons suchiposition,being arQlf-f --ranged to.l ook o enisaid shaftg.

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