US1072883A - Printing-press. - Google Patents

Description

M. VIERBNGEL.

PRINTING PRESS.

APPLICATION FILED 00T.24,1905. BBNEWED DLO. 14, w07. 1,072,883.

Patented Sept. 9, 1913.

6 SHEETB-3HEET l.

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M. VIERBNGEL.

PRINTING PRESS.

APPLIGATIGN FILL-D ooT.z4,19o5. Hmmm 13mm. 1907.

1,072,883 Patented Sept. 9, 1913.

6 SHEETS-SHEET 2.

W am@ @Maz/M M, VIBRBNGEL.

PRlNTING PRESS.

APPLICATION HLED o0T.24,1905, 1,072,888.

RENEWED DEO.14,1807.

Patented Sept. 9, 1913.

0 SHEETS-SHEET 3.

M. VIBRENGBL.

PRINTING fuss.

APFLICATION FILED OCT. 24, 1905. IINEWEDDEO.14,190T. 1,072,883. Patented Sept. 9, 1913.

6 SHBETBSHEET 4.

Patented Sept 9, 1913 6 SHEETS-SHLI 5 l/f f 1.0/1

.w 1. on u I w Q D m j w W EMME APPLIUATION NLBD 00T. 24, X905.

'aLl/2"( M. VIERENGEL.

PRINTING PRESS.

APPLIUATION YILED 00124, 1905, RENEWED DEO.14. X907. 1,072,883.

Patented Sept. 9, 1912 6 SHEETS-SHEET G.

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,X tuilhm' object of ihk4 invention is tu witwi fr :mi: muse, und thereby prevmt f .1 pos-Mmm :md to curry the Ut the drawings: Figure l represents a suiwelesfatuin of the rightehand side of 'my improv, printingpress. Fig. 1 represents k ifrn ifi linder. Fig. 2 a t'i'ont. \nd eleryA-duin` ot the printingprese. Fig. 3 is an `@levata ol the lett-hand side ort' the le. *s :i persj'iefvhve view ot the forni-hed, ion cylinder and the raelts h v which for lifting and depressing the im end view of `the feed-lourd und theI arm by which thethroxv-oti nieehaoism iseontrolled. Fig. 8 is a detailed plan ot the plate on the feedboard showing the grid `which permits the arm to drop down and thus operate the throw-ottmechanism. Fig. 9 is Ain edge View of the feed-board and the arm showing the position ot the arm when a sheet is on the feeilheard, and its pizsition when there is no sheet on the feed-hoard.

ieferring to the draa'ings ythe frame of the press comprises a hase --A, side ineinhers wB-Lllm whieh are composed of bottoni plates -fs-(-M, uprights ml)-I)-l)2--- an'd top plates 1F-M; these parts of each side member being east as integral parts of eaeh other. 'The side members -B IY-'M are connected together transversely at the center by a brat-e Y F- bolted to the central uprights D'-D of the side members. This brave has a rectangular opening --G tl'ierein through ,vhieh the pitinan and :onnet-ting rods. hereinafter referred to, operate. 'the side members are bolted to the hase f--A-Y- and to the transverse brace if eeeurely, to form a strong, firm, non vibrating support for the moving members oi" the press. On the inside of the top plates dml'--All-M, and just above the bottom edges thereof. there aregiiifleivays -l--leand brackets Yewl-- east thereon.

lle is the type or form hed which is ronstrnetetl in the usual manner and has at the front and reruends shafts ----3--f-'-lwhich are journaled iu bearings in the side and renter ribs ot' the hed7 and have on their ends, which projeit. through thtl hearings, rollers er respeetively. These rollers rest on the guideways ---l--1-. The bed 555 irs further supported hy central rollers i`l-7---Sw-$- (only one of the latter heing shown) .v ich are mounted on short shafts in the toi-lied upper ends ot' the adjustalle plates il lo, On these rollers the llrine'etl leises ol' the long itudiiral ribs vrtlfwlfn ot the hed restV and move when the hed is rwiproeated.

"the :wliustahle plates eQ-lOf are Conwei; l with the brave WWF-m hy bolts passed thy-egli slot* iu the plates and screwed into the said brace so that these plates are susceptible of vertical adjustment. The bases ot the adjustable plates are connected with the upper ends hy set-screws --13f-14-, soeketed in the brackets --15-l6-- connected 'with the brace. Iy means of these sotsereivs the Central rollers -7-77-v8*8 au he adjusted to the bottoms of tbe ribs -ll--1--- and thus furnish a firm, and suh stanti-.illy t'rietionless, support for the bed at the Center.

Natl mozfamcat.-fl`l1e hed is pivot ally oon'- neoted at the rear with upright levers --l7--1t5A by coupling the shaft. steve to the levers which are constructed to serve as pivotal bearings for the said shaft. These levers are connected together transversely by a har --Jtlf-. A pitman connects this bar with a wrist-pin v-2lon a crankvvheel 2- mounted on a shaft Q3-- journaled aty the front of the machine in the hearings of a pillow-hloek -2-1 and a lateral projection of the upright -D- of the right-hand side member of the frame. The wrist-pin is lengt-hened so as to. project through the pitmau connection and into and f through a hearing w in the end of an arm m(Ztl-ou a shaft 27mjournaled in hearings in the pillow-block -24ge and a lateral projection of the upright -DN on the left-hand side of the machine. This -construction furnishes support for the Wristpiu? at both ends, thereby giving a Erm and steady connection of the pitman With the crank-wheel which eonduoes to the easy and comparatively noiseless movement of the bed. The lower ends of the levers --17-18- are fuleruined on a transverse bar --2S, and this bar is coupled to an adjustable vibrating link 29- mounted on a bar 30-d supported in the lower parts of the pillowblocks -24-24.

The crank-Wheel -22- meshes with a driving pinion 3L- which is mounted on the driving shaft -S which is journaled in hearings in lateral projections of the central uprights --1)D-of the side frames. The driving shaft carries on one end fast and loose pulleys --32--3-. The crankwheel @22e is rotated by the driving pinion -3l-- and through the pitman QO- vibrates or oseillates the levers l (-18-, and this, in turn, reciprocates the type or form bod -H-.

The sides of the bed have connected with them horizontal rack-bars -34-34 and Vthese rack-hars are provided with 1ongitudilnal flanges -35-35- that project, lunder similar but opposing flanges --36-36-- on plates 3?37- bolted to the side members of the frame. The bed is thus held against vertical displaeement, between the guideways -1-1- and the flanges 36- 3b ot plates --3737-.

Tt@ (fg/limiter mooew'ien-zf.-The impression ii: "Llwir [hun:

l uh llw an mv mp pink-sm mm mmm! vnu-fl m make un imprvssion tho cywlvr is wahf-( by the racklnu'a tu Uw light und,

on its backward motion, the cylinder is rotated to the left.

The reciprocating motion of the cylinder is produced by the pinions --42-42- cn-y `:raging the stationary rack-bars -43-43-. Vhen the bed moves forward and the cylinder turns on its axis, the pinionsI L12-42 being in mesh with the teeth of the rack bars --l3l3-, the cylinder and the crossheads SQ--ABO are. forced to move backward. The bed and the cylinder are thus moved away from a fixed point at the same time, in op osite directions at the same speed, whereiiy the distance traveled hy the bed duringl both its printing and return movement is reduced one-half, the remainder of the movement necessary for making an impression being accomplished by'the backward movement of the cylinder.

By reason of the fact that the cylinder is mounted in independent cross heads 89-39 arranged to reciprocate in the frames J-J at the opposite sides of the, machine, the said frames may be made of a minimum length and thereby given the maximum strength and stiffness for a given weight of metal, it being observed that. the upper members 40 of thtl frames .le-wl are required to take the entire strain of the impression. `As the slightest spring of these members 4() would give rise to an unevenness in the impressions it is important that said members should be made extremely rigid. This is rendered possible without unduly increasing their size by keeping their length as short as possible for a given length of travel of the impression cylinder. Another important feature of the construction resides in the arrangement of the fixed racks 43 outside of the frames J--J so that the bearings for the impression cylinder may be arranged close as possible to the ends thereof. By reason of this construction undue spring of the shaft of the impression cylinder under the force of the impressions is avoided. Another important feature of this construction consists in the arrangement of the fixed racks 43 upon the frames J--J so that said racks although fixed against longitudinal movement rise and fall with the frames and thereby remain in full mesh with the pinions 42 on the ends of the cylinder shaft. All lost. motion between these racks and pinions is thereby avoided. yIf the racks were fixed on the frame the pinions would be moved partly out of mesh therewith when the cyli s. is raised on the return stroke and this los Anotion would be added to the lost motion between the gears 73 and the racks 3l and would be `far more objectionable than the latter lost motion because of the smaller size of the pinions 42 as compared with thc gears 7 3.

form-rollers means of links -77"--77a. The caliriage travels backward and forward in front of and With the cylinder. The ink-fonntain -78- is fastened to the rear end of the frame just below the top` The fountain-- roller -79- is fitted with a ratchet-wheel on the end of its shaft and on the endfof the same shaft outside of the fono tain, an arm ---lcarrying a pawl --S v is mounted and has a pin w83-H, on the end pposite the pawl, which is engaged oy a pitman 84- pivoted to a cranlopin v '52 on a slide --86-' held in guides w on the outside of a cam S8 By the re\ oln tion of the said cam a ret-,iprocating motion is given to the pitman Mirtha and lle.: pit

man, in turn, swingslhe arm and causes the pawl -S2- to engage the teeth of the ratchet-wheel 0-- and thus rotate,

intermittently, the foiintaiirroller. The cvtent of the movement of tht` tonni:':irl-i'oller by the swing of the arm is` of course, gm.: erned by the distance of the crankpm -S5- from the center of the cam -S8-. In the extended side walls of the fountain near the bottom; and between the fountain roller and the frame of the press, a shaft -SSL- is journaled in suitable bearings. This shaftI carries two upright. arms --90-- 90 in the upper ends of which are bearings for the gudgeons of a supply-roller fill-W. The shaft -89- also carries at one end a pendent arm O2-- fitted with a roller h93- that bears against the face of the cam on the righbhand side of the press, which isy mounted on a shaft. 94- jenn naled in bearings in the rear uprights "-172- of the side frames A--lif-l3-. The shaft --94 also carries on the same side and behind the cam a spur-wheel -95-- which is in gear with an idle-wheel ANL- on a stub-shaft bQ7-w that carries also a sprocket-wheel -98 connected by means of a sprocket-chain 99 with a sprocketwheel -100 Tin the driving shaft -S-. The idlewlieel is in gear with a pinion -101 on the ,end of a transverse shaft -100 mounted in bearings in the uprights just below the top of the frame, This sha t carries between the side frames a tnansferroll -l()3-. The supply-roll --91- carries the ink from the fountaiuroller to the transfer-roll, when it is swung over b v means of the cam -88-. To the top plates -E-E- on both sides and just over the uprights D2- b 'ackets -l0-` 104:- are bolted which project rearwardrof ser? Y with the pin -118a-; but if the feeding is intermitted accidentally or purposely, the grid end of the arm drops down through the grid in the plate by gravity and the prop is swung over so that its shoulder will arrest the downward movement of the arm of the bell-crank lever 118- and thereby the reach-rod will beheld up with its notch ist disengaged from the pin -72-, the cylinder depressing mechanism thrown out of gear and the cylinder retained in its upper position out of contact with the form during its forward movement.

The prop is swung back to withdraw the shoulder from under the pin -1l8awhen the cylinder begins its return movement to-V ward the feed-board, so that the arm of the bell-crank lever can drop, and thus lower the reach-rod, so that its notch rengages the stud on the rocker, and thus couples up the cylinder depressing mechanism in time to pull the cylinder down on its next rearward or printing movement, if the feeding has been resumed. To accomplish this the arm 119a is positively connected with the upper end of the inclined bar 119b by a pin 124 on its end which is entered into a slot 124a in the said bar so that when the bar is drawn down by the cam 120, the

shaft 114C will be positively rocked in such` Idirection as to swing back the prop 117 from its active position with relation to the lever 118. When the parts are in this position, the arm 122 will be elevated to the position shown in Figs. 1 and 3 and in full lines in Fig. 9. When there isa sheet on the feed board and the bar 119" isreleased by the cam 120, the downward movement of the grid 122a at the endof the arm 122 is limited by contact with the sheet, this being the intermediate position indicated by the dotted lines in F ig. 9. Then the movement of the arm is thus limited by the sheet, the spring 121b that holds the roller on the inclined bar 119b against the face of the cani 120 lifts the bar without applying any pressure tothe/arm 122 by reason of the slot 1211a infthe bar which moves idly on the pin 124;, The arm 122 is thus permitted t0 rest against the paper lightly so as not to cause it to cut the paper between the slots. When' the arm 122 is thus arrested by the paper. the prop 117 is prevented from re- Axurning to its active position and the eylinder will be pulled down to printing position. It there is no sheet on the feed board when `the cam 120 releases the bar 119,v

the grid on the end of the arm 122 drops through the slots of 'the grid in the feed board to the lower position indicated by dotted lines in Fig. 9, thereby turning the rock shaft 114'so as to move the prop 117 intoactive relation to the lever 118 andthe cylinder will not be pulled down to the printing position. On the succeeding reve lution of again. drawn down, the arm 122 elevated to the position shown in full lines in Figs. 1, 8, and 9, and the prop 117 removed. to its inactive position the parts being then, in position to receive the next sheet. The succeeding operation will depend upon whether or not the sheet issupplied as above explained. To assist the weight of the arm 122 in moving the prop 117 and the intermediate connections and to regulate the pressure of the arm 122 on the sheet and thus adjust its pressure according to the strength of the paper, a pressureregulating spring 125 is coiled on the shaft 114, one end being fastened to one of the brackets 113 and the other to a collar 126 adjustably secured tothe shaft so that by increasing or diminishing the tension oi the spring the force with which the grid end of the arm bears upon the paper can beeregulated as desired.

The stationary rack-bars -43--43- .the shaft 94 the arm 119b will be.

which engage the pinions -42-42 and reciprocate the impression cylinder are fastened to the lower members of the frames `Jmg by means of bolts passed through horizontal slots in the rack-bars so that they can be adjusted longitudinally. These rack-bars are also held against movement,

lengthwise by set-screws passed through pillars -127-127 and bearing against' the ends of the rack-bars.

My invention, considered in its. broader aspects, is not limited to the particular construction herein shown and described nor to any particular construction by which the same has'been or may be carried into edt-- `feet, various changes may be made without departing from the main principles of the inventionand without` sacrificing its chief :.dvantages.

l claim:

1. A printing press including a form-bed. a laterally reciprocating impression oylinder, a guide iram'e for the latter, springs to hold said frame in raised position, and. eamoperated mechanism to lower said frame in opposition to said springs at predetermined times.

The combination, with the impression cylinder and the guide frame in whiehthc same is laterally guided` of springs upon which said frame rVJ 2, `and means acting' on said frame at the corners thereof to pull/the saine in downward dirertion in opposition to said springs. i

, sitely the impression cylinder is mounted, each of said frames being arranged between the racks and gears at the corresponding side of the machine.

1T. A printing pressincluding in combination, a reciprocating form bed, an opporeciprocating impression cylinder geared to said bed, a frame in which each end orl said impression cylinder is mounted, and means mounted independently of said, cylinder for moving said cylinder-carrying frames, each as a whole, in a direction transverse to the path of movement of the cylinder while retaining said path in substantially parallel relation to the form bed.

i8. A printing press including in combination, a reciprocating form bed, an oppositcly reciprocating impression cylinder reared to said bed, a vertically reciprocating frame, in which each end of said impression cylinder is mounted, a rack fixed on each traine, and a. pinion fixed at each end of the impression cylinder and arranged to mesh with the rack on the corresponding frame.

19. A. printing press including in combination, a reciprocating form bed, an oppositely reciprocating impression cylinder geared to said form bed, a vertically reciprorafing frame in which each end of said' impression cylinder is mounted, a rack fixed on each frame, and a pinion fixed at each end of the impression cylinder and arranged to mesh with the rack on the corresponding frame, said vertically reciprocating frames being arranged between the said last mentioned racks and 'nions and corresponding ends of the impression cylinder.

20. A printing press including in combination, a reciprocating form bed, an oppositely reciprocating impression cylinder having journals at its opposite ends, a frame in which each end of said impression cylinder is mounted, independent bearings arranged between said frames and the journals at the corresponding ends of the cylinder, and means mounted independently of the cylinder for moving said frames each as a Whole in a direction transverse to the path of movement of the cylinder while retaining said path in substantially parallel relation to the form bed.

In testimony that I claim the invention above set forth I have aixed my signature in presence of two witnesses.

MATTHEW VIERENGEL. lVitnesses:

HANS ANNHEIN,

Wni'roN C. DoNN.

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