US187806A - Improvement in printing-presses - Google Patents

Description

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wlTNEssEs INVENTORA. A f @i (3M/y 7de/7'5- W/i-Z, a6/kam. @al- Y ATTORNEYS,

ILPETERS FHOTO-LITIOGAPNEE WASHINGTON. D. Q.

` i l '4 Sheff:Vts--She'e4 J. E. BRA'UNS'DORF & C. KAISER. L PRINTING-PRESS; No, 137,306 ,rammed FebJzv, v187,7.

N- PETERS. PHOTOvLlYHOQRAPHER, WASHINGTON. D C.

JULIUs E. BRAUNsnoRF AND CHARLES KAISER, oF PEARL RIVER, NEW

YORK, AssIGNoRs fro J. E; BRAUNsDoRE a oo.

IMPROVEMENT IN PRINTING-PRESSES.

Speciiication forming part of Letters Patent No. 187,806, dated February 27, 1877; application tiled October 7,1876.

l and iignres of referenceinarked thereon.

Figure l ofthe drawings is a representation of a perspective view of our printing-press and Fig. 2 is a central vertical sectional view thereof. Fig. 3 is a side elevation of the same. Figs. 4, 5V, 6, 7, 8, 9, 10, 11, l2, 13, 14, and 15 are detail views.

This invention relates to printing-presses; and the nature of said invention consists in certain improvements hereinafter particularly set forth and claimed.

In the annexed drawings, A designates th solid metal frame, which supports the operating parts of our improved printing-press; and B designates a driving-shaft, journaled therein. Une end of said shaft, on the outside of said frame, is provided with a belt-wheel, B1, and a ily-wheel, B2. Y Power may be applied to said driving-shaft either through said belt-wheel Bl, or through' a double crank, b, which is formed in the said driviiig-shait between the sides of frame A.

The other end of said shaft is provided with a tixed pinion, b2, which meshes with and turns a large cog-wheel, U, keyed on a shaft, U1, above said driving-shaft B. Said shaft G1 is also journaledin frame A, and carries at the end opposite to cog-wheel C a crank-wheel, U2. Near the peripheries of wheels (l and G2 are studs c c, secured to the -faces of said wheels, from which studs connecting rods D D extend to similar studs cl l on the axis of circular rocking disks or platen-beam bearings D D. a circular frame, e, which is formed in one piece with a grooved pedestal, E, which slides upon a horizontal track, E', rigidly secured to frame A. Said track is provided with a guidetongue, e', which enters a longitudinal groove Each of said bearings is held in` in said slide or sliding pedestal E. Said slides, tracks, and tongues on the opposite sides of the apparatus exactly correspond to one another, respectively, in shape, size, and operation, so that when said wheels C C2. are turned, said slides or sliding pedestals E E are simultaneonsly caused to reciprocate forwardand backward for equal distances. p

Bearings Dl D are connected together by platen-beam F, which is curved in cross-sec tion, .and is eccentrically attachl at both ends to said rocking bearings D f.

Rocking motion is given to said bearings by means of the devices above described, in combination with a metal link-bar, F', which is connected at one end to a downward extension of one of the fixed tracks Ef, and at the other end to an eccentrically-situated stud, d', on one of said circular disks or bearings D.

G is a platen supported by said platen-beam upon four screw-threaded rods, g g, near each of its corners, and upon one central adjustingscrew gl, by means of which its distance from,

and position with relation to, said platen-beam may be adjusted at will, so as to compensate for wear. The eccentric attachment of said platen-beam F causes said platen Gto assume a horizontal position when it is forced ou tward bythe operation of wheels C C2, connectingrods D D, and the other devices above described, and to 'assume a vertical position when drawn inward by said wheels, rods, and other connecting devices, so as to press evenly an'd firmly on all parts of a vertically-arranged form of type. Said platen is recessed at gIJ to leave room for the gripers, as hereinafter described. H designates a chase set vertically between standards l2 l2 secured to the two sides of frame A and in a bed rwhich is formed by said standards, together with a bed-plate, h, and vbottom lugs h1 h1, said. back plate and bottom' lugs being secured rigidly to said frame A. Said chase is locked in place by a hook or chase-holder, H1, `which is pivoted to a recessed block, H2, secured to the back of bed-plate h at the top thereof. Said chaseholder is provided with a curved rearward extension, 11,3, which rests upon a cam, h4, carried by a shaft, 1:14, which shaft is journaled in said block 1:12 behind the pivot of said chase-holder,

and in one side of frame A. Said shaft H4 is provided, within said frame, with a spring, H3, which operates to turn said shaft forward, so as to cause cam h1 to hold up extension h3, and thereby to clamp chaseH between chaseholder H1 and plate h. Shaft H4 is also provided, outside of said frame, with a crank, H5, having handle h5, which is used for turning said shaft backward, so-that cam h4 will allow extension h3 to fall by its own weight, thereby raising the forward part of said chase holder orhook, and releasing said chase. A small stud, h6, secured to the outside of frame A prevents said crank arm and shaft f'rom being turned too far forward.- Shaft H4 may be dispensed with, the said crank being attached to the said cam, and said cam being pivoted to lugs.A While platen G is being forced away from chase H, as described, a roller-frame, I, descends through the intervenin g space, callsing composition rollers I1 I1 I1 to pass over and ink the face of' the type in said chase; and, as said platen approaches said chase, said rollerframerises, so as to be out of the way of' said platen and chase, and also for the purpose of' allowing` said composition rollers to receive a fresh supply of ink f'rom devices hereinafter described at the top of frame A. This reciprocating vertical motion of said roller-frame is effected by means of a rocking frame, J, Fig. 3, which consists of' two bent side arms, J1 J1, and a rear cross-arm, J2. Said rocking frame is' pivoted, by the middle of said side arms, to the outside of main supporting-frame A. One of said bent side arms J1 is provided with a projecting lug orrstnd,j, Fig. 4, which sets in a cani-groove,j1, on the inner side of wheel C, Fig. 5. ,.Ihe operation of said camgroove and stud or lug is to cause the said frame J to rock alternately up and down upon its pivots with a long pause, caused by the peculiar shape of said cam-groove, (a part of which is concentric with wheel 0,) at each end of said vibration. The forward ends of said curved side arms J1 are pivotally connected to the lower ends of two corresponding linkplates, J3 J3, which are pivotally connected by their upper ends to the lower part of reciprocating roller-frame 'I I. Owing to this connection the rocking motion and pauses of rocking frame J canse said reciprocating rollerframe I I and composition rollers I1 I1 to move alternately up and down, as described, and also to pause at the upper and the lower ends of its vibration.

The upper pause is for the purpose of allowing said composition rollers to be sufficiently supplied with ink, as hereinafter described, before being again passed over the type, and also to allow said composition rollers to be out of the way when the platen presses against the form. But cam-groovej1 is liable to become worn, so as not to cause a sufficiently long pause for said purpose. To obviate this difficulty we provide sliding frames e e, which in- `close bearings D D', with lugs jzjz, which press against'arms J1 J1 under reciprocating -sired extent.

` roller-frame I at each side when the platen is drawn forward against the chase, and prevent said reciprocating roller-frame from descending until said platen begins to recede. Said composition rollers l1areV connected to said reciprocating roller-frame I by means of sprin ghooks i, which allow said rollers to yield slightly, and therebyA to avoid any injury which might otherwise arise from contact with the rollers and cylinders hereinafter described, or with accidental obstacles. Said reciprocat ing roller-frame is guided in its vertical vibrations by standards l2 I2, whchare secured to the main frame A. rllhe outer sides and edges of said standards set into vertical recesses or channels in the inside of the side pieces of said reciprocating roller-frame. The devices by which composition rollers I1 receive their supply of ink are as follows: To the top of f'rame A, at both sides thereof', are secured bracket-plates K1 K1, which are provided on top with recesses 7c3, 7a4, and h5, of various depths, to receive the bearings'of certain rollers hereinafter specified. Said recesses in each of said bracket-plates correspond, respectively, to those in the other one of said plates. K designates an ink-reservoir, consisting of a fixed flat plate, 7c, having a curved flange, k1, and a semi-cylindrical pivoted casing, k2. Said reservoir is rigidly secured to one side ofa rocking bar or frame, K2, which is supported' and made vertically adjustable by means of thumb-screws K3 K3, which enter the upper ends of oblong fountain-roller bearings Zt. Said ink-reservoir K opens downward, and the degree of' said opening, and the consequent supply of ink to the fountain-roller, are regulated by means ofL a small adjusting-nut, la", which works on a screw-threaded rod, la, that is secured at one end between two lugs on plate k. and passes through aperforated lug, 709, on the semi-cylinder'k2, Fig. 6. To said lug t9 is attached a small bifurcated plate,'k10, whichcatches into a circular groove in the said adj usting-nut k7. By this construction the Semi-cylinder k2 is operated by the nut to open or close the ink-reservoir to any de- Said ink-reservoir is located immediately over a fountain-roller, L, which has immediately-under ita trough, L1, to prevent waste ofthe ink. Said fountain-roller is journaled in hearings L l, which are oblong or diamond-like in shape, and which are pivoted by their lower ends to brackets K1 K1 at the bottom of deep and broad recesses k1 k1. Said recesses allow said bearings L l to rock backward and forward upon their pivots. This rocking is accomplished by means of linkplates L3 L3, which extend from bearings l l, at points above their pivots, to disks m1 m1 on the gudgeons of hiking-cylinder M, said link-plates being eccentrically secured to said disks. Said inking-cylinder is journaled in bracket plates K1 K1 below and in front of the said fountain-roller L; and it derives rotary motion from a shaft, N, which is journaled in said frame A below and behind said inking- YV A cylinder M, which shaft N is rotated by shaft G1, already described. Said motion is transmitted through cog-wheel M1 on shaft 01c'ogwheel M2 on shaft N, and Vcog-wheel M3 on inking-cylinder M.

By means of the above-described connections, whenever the driving-shaft B is rotated the ink-reservoir K and the fountain-roller L are rocked backward and forward. Every time said fountain-roller is rocked forward it comes in contact with a transmitting-roller, L2, which transfers the ink from fountainroller L to hiking-cylinder M. ',lhe gudgeons of said transmitting-roller turn in shallow recesses 7a4 Zc4, already described, and extend outward on each side far enough to be engaged by beveled lugs Z1 Zl on link-plates L3 L3, whereby said transmitting-roller LZis` slightly elevated and lowered at each rotation of the driving-shaft and consequent backward and forward motion of said link-plates L3. ln front of roller 'L2 is an ink-spreading roller, L4, which reciprocates longitudinally upon thecylinder M, for the purpose of spreading the ink evenly thereon.

This motion is effected by the following means: The end of inking-cylinder M, away from cog-wheel M3, is scalloped so as to present a series of projections and depressions, m m, Fig. 7, which bear against a small frictionroller, m2, which turns in a bearing-block, Z3, to which one of the gudgeons of ink-spreading roller L4 is attached, and in which said gudgeon is journaled. Said bearing-block Z3 is set in one of the recesses 165 Zc5, the other gudgeon of said spreading-roller beingjournaled in the other one of said recesses. Said bearing-block Z3 moves inward and outward with said roller, but is prevented from moving outward too far by a stop-block, Z4. On the inside of said stop-block is au inwardl y-eXtendin g stud, Z5, to which is attached a helical spring, Z5, which operates to force said bearing-block l3 and spreading-roller L4 inward as soon as the scallops in m allow such motion.

By thecombined operation of said projections and depressions m m, and said springs, an endwise-reciprocating motion of said inkspreading roller L4 is produced'at every rotation of said inking-cylinder M. Above the front of said inking-cylinder, and in contact therewith, is a small supplemental roller or cylinder, L5, which is journaled in the upper ends of standards l2 12. Said supplemental roller L5 compels the ink' to pass in a very thin and even lm from said inking cylinder M to the vertically-reciprocating set of inkingrollers llin frame I. Said rolle'i` L5 also directly transfers the ink from said cylinder to the uppermostone of said rollers Il. `Rollers L2, L4, and L5 are all capable of yielding in a vertical direction, in order to avoid injury from any foreign substance which might accidentally be inserted between said rollers and inkin g-cylinder M. Fountain-roller L is provided at one end with a ratchet-wheel, Z", Fig. 1, and

acrank-handle, Z8. 'A pivoted dog, Z9, prevents said ratchet-wheel and fountain-roller from being turned backward. But when vsaid Vdog is thrown back out of the way said crankhandle may be turnedrso as to rotate said fountain-roller backward in its trough, thereby securing a redistribution of the ink upon its surface. Y

The devices for feeding the paper to the gripers are as follows: To shaft N we secure two eccentrics, N1 N2, which turn therewith. 0am or eccentric N1 operates against a small friction-roller', u', at the top of a vertical rod, O. the lower end of which rod is pivotally connected to the rear cross-bar of a small horizontal rocking frame, P, which is rectangular in shape and pivoted by the middle of its side bars to the inside of supporting-frame A. Said rocking frame P presses upon the pile of sheets of paper, which pile is supported by a table or platform, Q. Said table or platform is suspended from frame A by helical retracting-springs q q, so as to be self-adjusting as the pile of paper diminishes. Said table is covered with a sheet of india-rubber or similar material. The operation of eccentric N is to force rod O vertically downward; but as soon as the pressure of said cam ceases, the said rod is drawn upward by the action of a spring, O", which is coiled.V around said rod. Said spring O is attached at its upper end to a lug, o, secured directly or indirectly to 'fixed plate G', and said spring is attached at its lower end to the rear cross-bar of rocking frame P. Rod O passes through a per-A foration in lug o on plate G', and is` both guided and braced thereby. The combined operation of cam N1. and spring O is to rock said frame P so as to transfer the pressure upon the paper alternately from the front to the rear of the sheets, and vice versa.

Eccentric N2 operates against a small friction-roller,y p, on the upper end of a curved arm,p1, which is rigidly connected to the top of a vertical or nearly vertical rocking-frame, P, (shown in b`ig.9,) at one side thereof. Said vertical rocking frame is detachably fastened at the bottom to the weighted rear part lt] of a paper-feeding device, l, shown in detail in Fig. l0. The under side of the front part or rubber clamp R2 of this device is provided with a rubber feeding-pad, r, and the weighted rear part R1 is provided with a'set-screw, r1, for regulating the angle whichsaid hinged parts R1 R2 make with one another, and thereby adjusting the degree of pressure by said feeding-pad r uponthe upper sheet of paper. Plate-springs r2 r2 act in conjunction with th'e screws to attainthis end. Said plate-springs r2 at one end bear against the front part of R2 of feeding device R, and are connected to plates r3 r3 on the rear part R2 of said feeding devices by means of set-screws r4 r4, which-effect the adjustment described. P2 designates a lretracting-spring, which operates to draw the lower end of vertical vibrating frame P1 backward, as soon als cam N2 has ceased to force said lower end of said frame forward.

The combined operation of said cam and said spring is to give a reciprocating forward and backward motion to said feeding device R over and within said horizontal rocking frame P. Said feeding device R is provided at both ends between its parts R1 R2 with bearingblocks z5, which slide in guideways or tracks rs in the top of the side bars of horizontal rocking-frame P. Said guideways are provided with doubly -inclined lugs r". The weighted rear part R1 of said feeding device R is extended at both ends at r", so as to engage with said doubly-inclined lugs W, and

said extensions rs are beveled so as to be raised when they engage with said doublyinclined lugs.

The operation of the above-described paperfeeding apparatus is as follows: The arrangement of cams N1 N2 is such that when horizontal rocking frame P is raised in front, relieving the pressure at that point upon the sheets of paper below, the weighted clamping device R is in its most forward position with rubber pad r resting upon the front part of the upper sheet. Simultaneously with the raising of said front part of said rocking frame P, the device R is withdrawn, taking with it the front part of the upper sheet. The front of rocking frame P then closes tightly on the front of the remaining sheets, while the rear end of said frame releases the rear part'of said upper sheet, and at the same time the rubber feeding-pad r carries the said upper sheet forward to the glipers, hereinafter described. As soon as the gripers grasp said paper the weight of said feeding device R is taken off from said sheet by beveled extensions rg coming into contact with beveled lugs W, so that said paper may be easily withdrawn. This is further facilitated by a cross rod, S, (shown in cross-section in Fig. 2,) which extends across the front of frame P, a little above the same. The use of said rod is to interpose between rubber r and the sheet of paper while the gripers are withdrawing the latter, so as to prevent unnecessary friction. S S designate Atwo vertical guard plates or bars, which extend downward from thev front of rocking frame P, and prevent the sheets of paper from being pushed or otherwise moved over the front of table or platform Q. T T designate two griping-jaws, one of which is attached to a shaft, U, and the other to a tubular shaft or sleeve, U, on said shaft U. Said shaft is journaled in projections a u on link-plates J3 J3, and is connected to said sleeve U by helical springs u u', which operate to turn said shaft and sleeve in opposite directions, closing said griping-jaws or gripers Tl T. The operation of curved side arms J1J1, heretofore described, causes griping-jaws (as well as the shaft which carries them, and the link-plates in which said shaft is journaled) to turn inward toward the chase H at the upper end of its vertical vibration, and pause for a moment while the platen Gr forces said griper or gripingjaws against'said chase. As said platen withdraws from said chase the said gripingjaws descend vertically, opening as they approach the lower part of their vibration, and turning' inward and closing upon the upper sheet of paper as they reach the lowest point of said vibration. Said -vibration is prolonged s ome distance below chase H, in order to enable said grpers to Vseize said paper. After said paper is seized the said gripers turn slightly outward again, and then rise vertically, turninginward at the upper end of their vibration, and there pausing, as described, but remaining closed until the downward motion begins and continues for a certain space, when said gripers open, as above described, and the sheet of paper (which has been printed by the pressure of platen G against the type in chase H) drops into an oscillating paper-carrier or guide-casing, V, which is open at top and bottom, and pivoted at the sides to frame A. Said guide-casing is rocked backward and forward by links or toggle-arms t v', which connect the upper part of said guide-casing to one of the sliding pedestals E, which carry the bearings of the platen-beam. Said guidecasing operates to lay the sheets of paper evenly, one by one, with their printed sides uppermost in a receptacle placed under the printing-press.

The above-described movements of the said gripers T Tl are produced by means of the following devices: To one end of shaft U is secured an arm, W, provided at its other end with a lateral stud, w. To the corresponding end of sleeve U is secured a similar arm, W', provided likewise with a stud, w. X designates a guide-plate, which is supported on bolts extending horizontally from frame A. Said plate is provided on its inner side with cam-guide flanges a: x', which are arranged so as to engage with said studs 'w w as the said studs descend. Said studs pass down through the space intervening between said anges. Flange at', against which stud w bears, is slightly curved at the top; then nearly vertical; and, iinally, inclines backward and downward. Flange w is nearly vertical in its middle portion, and curves backward both at front and bottom, so as to leave a funnel-shaped .space between said flanges at the top, terminating in a narrow curved neck. As said studs pass down said space they are pressed together by said anges, th ereby opening said gripingjaws' T T, and so retained until the bottom of said space is reached. Stud w then passes out from between said iianges, (arm W being longer than arm W,) and spring u operates to close said gripers. The backward inclination of iian ges .n a" causes said gripers to turn toward the pile of paper, as described, and the said gripers retain that position for a moment after the upper sheet is grasped. As the said arms ascend stud w passes up outside of said guide-flanges, so as to .allow said flanges to remain closed, while stud w passes up between said flanges, causing said gripers to reverse their descending path. When arms W W' have reached the upper end of their vertical vibration gravity draws down the ends of said arms, which carry studs fw w', so that said arms assume a nearly vertical position above the space between said anges or as', and studs Iw w pass down through said space, as before.

Standards I2 are made adjustable toward or from the platen, metal'sheets y y (shown in detail in Fig. 14) being inserted behind said standards to any number required, or withdrawn, if required. In this way said standards are adapted to be used with type of any height, or composition rollers of any diameter.

The operation of the apparatus will be suficiently clear from the description already given. V

The connection between the lower ends of frame P1 and feeding device R is preferably made by means of studs 103 on said frame and slots r3 r3 in said feeding device. y

The vertical movement of the table Qis regulated by means of guide-rods q1 q1, which slide in sleeves g3 g3, secured to the main frame A.

What we claim as new, and desire to secure by Letters Patent, is

1. The sliding pedestals E, having frames e, provided with lugs jz, in combination with rocking disks D', connecting-rods D, fixed guide-tracks E', linkbar F', and roller-frame I, substantially as described, and for the purpose set forth.

2. In ink-reservoir K, the combination of` flat plate 7c, curved ange k1, semi-cylindrical casing k2, screw-threaded rod or stud k3, and Vadjusting-nut la", substantially as set forth.

3. In king-cylinder M, having projections and depressions m m on one of its ends, in combination with the sliding block Z3, friction-roller m2, stop-block Z4, spring Z3, and distributingroller L4, substantially as described, and for the purpose set forth.

4. The wheel C, having a cam-groove on its inner face, in combination with the rocking frame J, having a lug engaging in said camgroove, and provided with link-plates J3, pivoted toV the inking-roller frame I, and the griper-shaft U,journaled in lugs of the linkplates, substantially as described, and for the purpose set forth.

5. Side 'arms J1 J1 of rocking frame J, in combination with link-plates J3-J3, ink-roller frame I, and gripers T' T', carried by a shaft, pivoted in lugs on link-plates J3 J3, substantially as set forth.

6. Sliding frames e e, provided with lugs j2 j', in combination with composition-roller frame I, rocking arms J1, and link-plates J3 J3,

for the purpose of holding the composition-A rollers in position to be inked, substantially as set forth.

7. The swinging gripers T' T', depending `from the shaft U, and sleeve U', in combination with the platen Gr, provided with the recess g2, substantially as described, and for the purpose set forth.

8. Plate X, having cam-guide flanges a: w', in combination with studs fw w' in arms W W', shaft U, sleeve U', spring u', and the gripers, substantially as set forth.

9. The combination of horizontal rocking frame P with table Q and a feeding device consisting of Weight R1 and rubber clamp R2, substantially as set forth.

10. Horizontal rockingframe P, provided with tracks 'r6 and beveled lugs W, in combination with feeding device R, having beveled extensions 'r3, said devices being arranged t0 operate so that fratrie P frees the forward part of each sheet when device R dra Ws it back, and frame P frees the rear part of said sheet when device R feeds the said sheet forward, substantially as set forth.

11. The combination of frame P and feeding device R with a cross-rod, which is arranged to interpose between rubber feedingpad r and the sheet of paper which is being fed forward, substantially as and for the purpose set forth.

12. The combination of cam N1 on shaft N with rod O, spring O', and frame P, substantially as set forth.

13. The combination of cam N1 in shaft N with vertical vibrating frame P1, and feeding device R, for the purpose of giving a backward and forward motion to saidl device, substantially as set forth.

14. The combination of weight R1 with rubber holding clamp R2 and adjusting screws and springs for regulating the pressure of rubber feeding-pad fr upon the paper, substantially as set forth.

15. Oscillating paper carrier or guide casing V, in combination with links e o', and sliding platen-supporting pedestal E, substantially as set forth.

16. Oscillating fountain-roller L, in combination with bearings Z Z and link-plates L3 L3, having beveled lugs Zl Z1, eccentrically attached to disks m1 m1 of the inking-cylinder M, and roller L2, substantially as described, and for the purpose set forth.

In testimony that we claim the above we` have hereunto subscribed our names in the presence of two witnesses.

JULIUs E. BRAUNsDoRF. CHARLES KAIsER.

Witnesses:

J oHN H. BRAUNSDORF, JAMES SERvEN.

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