US548357A - north - Google Patents

Description

(No Model.) 14 Sheets-Sheet 1. A. J. EDDY & A. C. NORTH.

PRINTING MACHINE.

Patented v001;. 22, 1895.

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PRINTING MACHINE. No. 548,357.

Pathented oct. 22,'1895.

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A. J. EDDY & A. C. NORTH.

PRINTING MACHINE.

Patented Oct. 22,1895.

` (No Model.) 14 `Sheets-Sheet 4.

A.v J. EDDY an AQ d. NORTH.

PRINTING MACHINE.

No. 548,357. N Patented 001i. 2.2,v 1895.

(No Modem '14smeetsfslwer,4-5. y I A.. J. :EDDY 8E A. C. NORTH.

PRINTING MACHINE.

No. 548,357. Patented ont. 22, 189.5.

(No Model.) 14 Sheets-Sheet 6 A. J. EDDY A. C. NRTH.

PRINTING MACHINE.

Patented Oct. 22, 1895.

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I A 2 A f RW: i

Patented 0012.22, 1895.

llllllllllllllllll/ I/l III -PRINTINQ MACHINE.

A. J. EDDY su A. G. NORTH.

(No Model.)

(No Model.) .14 Sheets-Sheet A. J. EDDY & A. C. NORTH. PRINTING MACHINE.

No. 548,357. Patentedy Oct. Z2, 1895. f il Z7 ill/Q lf. *I7 1,52 7 *C2/3 7'2/3 c uw I... HH :'l A' C2 I Il [Il IH I 9 ,I f I' Il I u r|lIl ANDREW B GRAHAM.FHDTOL\T|ID.WASNINGTON.U C

(N Model.) 14 sheetssheet 9.

AJ. EDDY an A. c. NORTH. PRINTING MACHINE.

No. 548,857. PatentedvOot. 22, 1895.

` rf "J (No Model.) 14 Sheets-Sheet 10. A. J. EDDY & A. C. NORTH.

i PRINTING MACHINE No. 548,357. Patented Oct. 22, 1895.

ANDREW EGRMIM. PNU'UMTHO-WASNINGTUILD-C.

(No Model.) 14 Sheets-Sheep Il. A. J. EDDY 8v A.. C. NORTH.

IDNIN'IINc-xr MACHINE.

Patented 0615.22, 1895.

a c l (No Model.) 14 sheets-sheen' 13.

' A. J. EDDY '8u A. QNORTH.

PRINTING MAQBINE. No. 548,357. Patented 0011.22, 1895.

, PHOTO-LHHMWASHIN GTBN. U-C.

(No Model.) i 14 Sheets-Sheet 14.

A. J. EDDY 81; A. C. NORTH..

,357. Patented Oct. 2,2, 1895.`

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"bu n m IJMTED STATES PATENT OFFICE.

ARTHUR J. EDDY AND ALFRED C. NORTH, OF CHICAGO, ILLINOIS; SAID NORTH ASSIGNOR TO SAID EDDY.

MACHINE.

SPECIFICATION forming part of Letters Patent No. 548,357, dated October 22, 1895.-

Application filed February 14, 1894. Serial No. 500,171. (No model.)

To @ZZ whom it may concern..-

Be it known that we, ARTHUR J. EDDY and ALFRED C. NORTH, citizens of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Printing-Machines, of which the following is a specification.

Our invention relates to improvements in printing-presses; and While certain features of the improvements are adaptable to printing-presses generally, other of the improvements relate especially to oscillating jobpresses, and still others more particularly to oscillating Web-printing presses.

Our object in the machine illustrated in the drawings and hereinafter described and which embodies all our improvements is to provide a comparatively simple, durable, and inexpensive web feeding printing press, which may be employed for substantially all classes of job-printing, whether in one .or more colors, which may be easily and quickly changed from one class of work to another, and operate at high speed and comparatively noiselessly to turn out work of a high de',- gree of perfection.

In the drawings, Figure l is a front elevation of our improved printing-machine; Fig.

2, a rear elevation; Fig. 3, a top plan; Fig. 4,'

an enlarged section taken on line 4 of Fig. 1; Fig. 5, an enlarged section taken on line 5 of Fig. 1, but showing the platen raised; Fig. 6, an enlarged section taken on line 6 of Fig. l; Fig. 7, an enlarged section taken on line 7 of Fig. l; Fig. 8, a sectional plan View taken on line 8 of Fig. 5; Fig. 9, an enlarged-broken sectional view illustrating a detail of the construction, the section being taken on line 9 of Fig. 8 and viewed in the direction of the arrow; Fig. 10, a broken sectional detail View of a sectionalinking drum or roller, taken on line 10 of Fig. 8 in the direction of the arrow; Fig. 11, a section taken on line 1l of Fig. 5; Fig. 12, an enlarged sectional View ofa detail,

. the section being taken on line 12 of Fig. 8;

Fig. 13, an enlarged broken section taken on line 13 of Fig. 1; Fig. 14, an enlarged broken section taken on line 14of Fig. 1; Fig. 15, a plan view of an antifriction-bearing forming -a part of the mechanism illustrated in Fig. 14; Fig. 16, an enlarged broken section on line 16 of Fig. 14; Fig. 17, an enlarged section taken on line 17 of Fig. 14; Fig. 18,7an enlarged broken section taken on line 1,8 of Fig. 3; Fig. 19, a broken section taken on line 19 of Fig. 2l and enlarged; Fig-20, an enlarged broken section taken on line 20 of Fig. 27; Fig. 21, an enlarged plan view of a detail of the mechanism shown in Fig. 18; Fig. 22, a broken perspective view illustrating a detailof the construction; Fig. 23, an enlarged section taken on line 23 of Fig. 1 and showing the intermittent feed for the web; Fig. 24, aisection taken on line 24 of Fig. 23; Fig. 25, an enlarged broken section taken online 25 of Fig. 1; Fig. 26, a section taken on line 26 of Fig. 25 and illustrating one of the details of aclutch mechanism; Fig. 27, a broken section taken on line 27'of Fig. 1 and showing a transverse webcutting mechanism; Fig. 28, a section of a detail of the constructiontaken on line 28 of Fig. 27; Fig. 29, an enlarged section taken on line 29 of Fig. 1 and showing web-slitting disks; Fig. 30, a view showing the same parts as Fig. 29, with perforating-wheels-in place of cutting-disks; Fig. 31, an enlarged section taken on line 31 of Fig. 29; Fig. 32, an enlarged broken and partly-sectional view of the perforating-wheels shown in Fig. Fig. 33, an enlarged section taken on line 33 of Fig. 3 and showing a detail of the construction of the intermittent web-feed mechanism; Figs. 34 and 35, enlarged sectional views taken, respectively, on lines 34 and 35 of Fig. 23; Fig. 36, an enlarged broken sectional view of certain details of theintermittent web-feed mechanism, the section being taken on line 36 of Fig. 3, corresponding with line 36 of Figs. -34 and 35; Fig. 37, an enlarged broken elevation viewed from line 37 of Fig. 33, and Fig. 38 an enlarged broken section taken on line 38 of Fig. 7. y l

A is a base or supporting frame, made preferably in the form of a hollow casting and presenting parallel top rails'A A2. B is the frame of the printing-machine, comprising a base-plateB and cheeks or side frames B2 B3, respectively. The base-plate B fits at its forward and rear edge portions upon the IOO rails A A2 and is provided on its under surface with stops :l: m, which fit between the rails.

The press may be slid along the base to any desired position thereon and may be securely clamped in adjusted position by means of a clamping-bar X, which engages the under sides of the rails A A2 and connects with the bed by means of a screw-bolt X.

C is the drive-shaft, which extends beyond the forward end of the machine and is jonrnaled in bearings afforded by crooked arms A3 A4, extending from the base A. On the outer end portion of the drive-shaft is a handwheel C', and adjacent thereto is a loose sleeve C2, (see Fig. 25,) carrying a power-pul ley C2. At its inner end the sleeve is enlarged and fiauged to afford an annular inner friction-surface y, which gives to the sleeve the character of a 4clutch member. Fastened upon the shaft adjacent to the sleeve C2 is a sleeve C4, provided at opposite sides with short radial ribs or feathers 'y'. (See Fig. 26.)

C5 is a sliding circumferentially-grooved wheel or clutch member having a sleeve p0rtion y2, which fits over the sleeve C4, and is provided with longitudinal recesses to embrace the ribs y of the latter'. On opposite sides of the sleeve C5 are projecting ears, affording between them sockets y2, in which are pivoted short links y, carrying at their free ends pivotal shoes g5. Pivotally secured at one end to the arm A3 is a clutch-shifting lever C, which between its ends surrounds 4the shaft C, and is provided with fingers ys,

(see Fig. 1,) which extend loosely into the circumferential groove of the sliding clutch member C5.

The power to drive the machine is applied tothe pulley C2, and by movement of the lever C6 in one direction the clutch member C5 is forced into engagement at its shoes g5 with the surface y of the sleeve C2, causing the driveshaft to rotate with the pulley. 4Movement of the lever C6 in the opposite direction withdraws the clutch member C5 from the sleeve er clutch member C2 and retraets the shoes g5 from the surface y, causing the pulley and sleeve C2 to rotate loosely upon the shaft and thelatter to remain stationary. On the driveshaft beyond the arm A4 is a pinion t, which drives the printing-press, as hereinafter described, and on the saidshaft between its bearings are pinions t f2 t3, respectively, of gradually-increasing diameters, each adjustable longitudinally of the shaft and provided with a set-screw for securing it in adjusted position.

Extending parallel with the shaft C and substantially the full length of the base A is an auxiliary 0r counter shaft D, journaled in the free end portions of the arms As A4 and in a bearing-arm A5 on the end portion of the base A. On the shaft D between its bearings As A4 are pinions s s s2 of gradually-increasing diameter and adapted to engage, respectively, with the pinions t f2 t3, being adjustablelongitudinally of the shaft for that purpose and provided with set-screws for securing them in adjusted position. The pinions afford adjustableV speed-altering gears between the shafts C and D.

The sides B2 B3 of the frame of the printing-press are bolted to the base-plate B and strengthened by means of a cross-bar B4. The rear upper ends o f the sides aord bearings for a round bar or shaft B5, on which is pivotally mounted a platen-carrying jaw or frame E. The frameE is formed with a body portion or plate E and parallel arched side bars E2, affording backward-extending arms, at the ends of which the frame is pivoted upon the shaft B5. At their forward ends the bars E2 are adapted to tit and rest upon surfaces T at the upper forward ends of the side frames. At the rear ends of the arms E2 are backward extensions E3. i Pivotally connected at their upper ends to the extensions Ea are spiral springs E4, which at their lower ends are connected with lugs T upon the rear edge of the base-plate B. On the side frames, in the relative positions shown, are backwardextending ears or stops T2, and on the side bars E2are laterally-extending ears or stops T3.

The frame E may be swung from the position shown-for example, in Fig. lt--to the raised position shown in Fig. 5, wherein the stops T3 come in Contact with the stops T2. The raising operation is rendered easy by the springs E4, which tend to counterbalance the swinging frame.

Journaled in bearings at the upper forward ends of the side frames is a shaft E5, which, beyond its bearing on the side B2, is provided with a handle E6. Pivoted upon the shaftE5 are T-shaped arms E2, between the head portions of which extendsa rod T4, affordinga handle. The T-shaped arms E7, which operate as fastenings for the swinging platen-frame E, fit at their stem portions into vertical recesses T (see Fig. il) in the ends of the side bars E2, and their enlarged head portions extend above the said ends. The shaft E5 is slightly reduced in diameter at the end portions, which pass through the bearings, as shown in Fig, 38, andthe circumferential snrface of the body portion of the shaft is eccentric with relation to the bearing ends, giving to the shaft the character of a cam. Turning of the handle E in one direction causes the arms E7 to be raised in the recesses T5 to disengage their heads from the upper surfaces of the side bars E2, whereby, by grasping the rod or handle T4, the arms ET may be swung forward against stops TG on the side frames to release the platen-frame and permit the latter to be grasped at its handle T7 and raised to the position shown in Figs. 5 and 1l to give free access to the oscillating bed of the press hereinafter described. When the platenframe is swung down toits horizontal position against the surfaces T, it may be firmly locked in place by swinging the arms E7 into the recesses T5 and turning the shaft E5 by means IOS IIO

of the handle E6 to draw the arms in the downward direction and cause their heads to engage and clamp the side bars E2 to the surfaces r.

The plate or body portion E of the swinging platen-frame has a vertical central opening for a platen-sustaining bolt q, threaded at opposite ends, (see Fig. 7,) and four vertical threaded openings equidistantfrom the center for platen-adjusting set-screws q', provided at their upper ends with hand-wheels q2 and reduced in diameter at their lower ends. The plate affording the platen F of the press has a central threaded socket Q6 on its upper side, which engages the lower threaded end of the sustaining-bolt q. On the upper threaded end of the bolt is a nut Q4, which bears upon the upper surface of the plate E', and may be turned to raise or lower the platen bodily. The set-screws q extend at their reduced ends into sockets g5 in theupper side of the platen, (see Fig. 6,) and are provided above the plate E with jam-nuts Q6. By turning the nut g4 and hand-wheels q2 the platen may be quickly adjusted over its entire surface with great exactness toregulate the impression. Pivoted to the platen at opposite ends are swinging stirrups Q7 for clamping a tympan F in place.

G is the oscillating jaw or bed of the press, having backward-extending arms G', pivoted at their ends to the shaft B6. Fastened against the lateral edges of the bed areaside bars G2, held adjustably in-place by means of screws p, (see Fig. 11,) passing through verticallyelongated sockets p in the side bars. The side bars afford tracks for the form-inking rollers, hereinafter described, to run upon, and

may be raised and lowered with relation to the surface of the bed a distance limited by the length of the slotsp to regulate the pressure of the inking-rollers against the form.

Gast upon the upper surface ofl the baseplate B is a longitudinally-extending l'ib B6. H H are stationary toggle-guides, each comprising a casting fitting at its under side, near the front over the rib B6, to whichitis secured by a bolt n, passing through a lug n on the casting and terminating at the rear ofits base in a plate which fits upon the base-plate B', and is firmly secured thereto by a bolt n2. Each guide H is preferably of the U shape shown, presenting a lower inclined bearing surface or plane H, terminating at its upper end in a bearing surface or plane H2, extending at an angle thereto and preferably parallel with the plane of the platen F, that being Vthe plane at which the impression is made and having an upper overhanging arm or re tainer H6, presenting an inclined under surface or plane H4, parallel with the plane H. Cast integral with the side frame B8 is a sleeve-bearing B6 for a short horizontal shaft K. At the outer side of the frame the shaft is provided with a gear-wheel K', which engages and is driven by the pinion t. On the opposite end of the shaft is a disk-wheel K2.

I is a plunger or 4toggle-operating barpi'votally secured at one end upon the side of the diskK2 and pivotally connected at its opposite end toa shaft I midway of the length of the latter. guides H, and in the latter carries rollers I2 of a diameter but slightly less than the distance between the inclined planes H H4. On the under side of the bed-plate G are end lugsp2 and intermediate 1ugsp6, all in line with each other and affording end and intermediate bearings for a shaft I6.

I4 is a toggle bar or leaf comprising a frame, having upward-projecting bearing-arms fm, which engage pivotally with the shaft I6, fitting between the respective bearings p2 p6, arms m at opposite ends engaging the ends of the shaft I', and intermediate bearings m2, which engage the shaft I', at opposite sides of the plunger or toggle-operating bar I.` The frame I4 straddles and overrides the arms H6 of the toggle-guides, the rollers I2 being confined in the guides and against lateral play by the 'respective bearings m m2. In the rotation of the shaft K and disk K2 the plunger-bar I is reciprocated. In the forward movement of the bar it draws the rollers l2 up the inclined plane H to the horizontal plane H2, thereby extending the toggle-leaf I4 and raising the type-bed in the direction of the platen.

The parts are preferably so constructed with relation to each other that the rollers I2 reach 'the plane H2 a very little in advance of the angle of greatest extension of the leaf I4 and just as the form starts to impress against theplaten. In the final forward movement of the plunger the rollers rock upon the plane H2 until the leaf I4 reaches the angle of greatest extension. This change in direction of the rollers immediately increases the lev erage ofthe parts, and consequently the power exerted against the bed, at the time of making the impression, when the greatest power is required. Thus it will be understood that in the final movement, during which the impression is made, the toggle-leaf and rollers operate as a toggle pure and simple, the rollers at that time being stationary (in the sense of not traveling) upon the verge of the plane H2 and.` rock thereon in the nature of a lower toggle-leaf. )Vhile their own weight and the weight of the bed would tend to keep the rollers in contact with the plane H in the backward movement of the bar I, there is danger, when running at high speed, that the rollers in leaving the plane H2 for the inclined plane will jump, however. slightly, thereby jarring the parts and rendering the operation noisy. The arms H6 hold the rollers to the surfaces H', whereby jumping is prevented and the operation rendered practically noiseless. For convenience of construction and for purposes of durability the plane H2 is afforded by short plates or shoes H5 bolted in place.

The shoes may be of hardened steel the better to withstand wear, and in case of wear at The shaft I extends through the IOC IIO

their angles they may be removed and replaced with new shoes.

On the outer sides of the arms G are pivotal bearings for the upper ends of rods G3, which reciprocate through guide-openings in the lugs r' on the base-plate B'. Surrounding the rods G3, and confined between collars thereon and the lugs fr', are springs G4, which thus operate to counterbalance the bed to as sist the rise and resist lowering thereof. The mechanism described for oscillating the typebed, on account of the comparative ease and smoothness with which it operates, permits the press to be run at a high rate of speed without noise or jarring of the parts.

Secured across the front of the machine in the position shown is an ink-fountain L, which may be of common construction. On the end portion of the shaft K, just beyond the gearwheel K', is a cam K3 of the form most plainly indicated by full and dotted lines in Fig. 4. Beyond the said cam, on the extreme end of the shaft K, is a wheel K4, provided with a peripheral cam-groove l. (See Figs. l, 2, and 3.) Extending longitudinally across the rear edge of the fountain is a fountain-roller L', the shaft L3 of which extends beyond the side frame B3.

Mounted loosely upon the shaft L3,just beyond the side frame B3, is a disk L3, provided in its periphery with a series of notches 7c on one side and at its opposite side with a laterally-extending segmental shoulder 7c'. (See Fig. 12.) Adjacent to the disk L3 and fixed to the shaft is a ratchet-wheel L4, over which the shoulder Zt' extends. Loosely mounted upon the end of the shaft L3 is a sleeve L3, provided with ahandle L6 and an arm L7, extending at an angle to the handle. The handle carries a pivotal pawlk3 to ride upon the shoulder k and engage the teeth of the ratchet L4. L3 is a rod (see Fig. 4) pivotally connected at its upper end to the free end of the arm L3. At its lower end the rod L3 is formed with a longitudinal loop 7a3, which receives a pin or bolt 71:4 on the side of the wheel K4. Fastened at its upper end to a pin 7.23 on the rod and at its lower end to a loop 7c3 on the pin or bolt 7a4 is a spring k7. In the rotation of the shaft K, and consequent rotation of the wheel K4, the pin 7a4 engages the upper end of the loop k3 and raises the rod L3 longitudinally to turn the arm L7 with the sleeve L5 and handle L6 upon the shaft L3. In this movement of the handle L6 the pawl k3 engages the ratchet L4 and turns it, the shaft L3, and fountain-roller L.

It is desirable in practice to regulate the distance of turning of the fountain-rollerl/ with each operation, in order to regulate the quantity of ink taken by the roller from the fountain and fed to the next roller, as hereinafter described. For this purpose we provide a spring-catch L3, which is fastened at its lower end to the frame of the fountain L, and is adapted at its upper end to engage any one of the notches c n the disk L3. In the forward movement of the handle LG the pawl 7a3 rides upon the shoulder k to the end `of the latter, whence it drops to and engages a tooth of the ratchet. Thus the distance of rotation of the shaft L3 and fountain-roller may be regulated by turning the disk L3 to cause the forward end of the shoulder Zt' to approach or recede from the point marking the forward limit of traverse of the pawl. By turning the disk L3 from the position shown in Fig. l2 toward the left the degree of rotation of the shaft L2 with each operation will be reduced, and by turning the disk to move the shoulder to the right the degree of rotation given to the shaft and fountain-roller will be increased. When the disk L3 is adjusted to the position desired, it is held in adjusted position by engagement of the spring-catch L3 with the notch la, with which it registers. When the rod L3 is thrustupward by the movement of the pin 7a4, as described, it moves against the resistance of the spring k3, and when the pin 7a4 releases the end of the loop the spring retracts the rod L3 and turns the sleeve L3, handle L3, and pawl 7c3 to their initial positions, wherein the pawl rides upon the outer surface of the shoulder Zt' and the ratchet-wheel remains stationary.

Journaled upon the outer side of the side frame B3, in the position shown in Fig. 4, is an idle-pinion M, the teeth of which engage the gear-Wheel K. Extending at opposite ends through bearings in the side frames B3 B3 is a rotary longitudinally reciprocating shaft M', carrying between its bearings an 4inking roller or drum M3, which supplies ink to the form-roller. On the shaft M', just beyond the side frame B3, is a pinion M3, en

gaging the idle-pinion M, and next to the pinion M3 on the end of the shaft M' is a wheel M4, having a peripheral groove.

M5 is a curved oscillating bar pivotally connected at its lower end to a lug B7 on the side frame B3. Between its ends the bar M5 is provided with a laterally-extending pin Z, carrying a roller Z3, which extends into and engages the cam-groove Z of the wheel K4. At its upper end the bar M5 is provided with a pin carrying a roller Z3, which extends into and engages the peripheral groove of the wheel M4. In the rotation of the shaft K the shaft M is rotated by the gears K' M M3, and is reciprocated in its bearings to a limited extent by the engagement of the bar M5 with the grooved wheel M4, the bar being oscillated by the camwheel K4.

Journaled at opposite ends in bearings in the side frames B3 B3 is a rock-shaft L43, provided just within its bearings with short radially-extending arms L44, which are fixed to the shaft. At their free ends the arms L44 afford lbearings for the opposite ends of a shaft carry- IIO in a guide afforded by a' lug or bracket B7 on the side frame B2. (See Fig. 4.) Between its ends the arm L13 is provided with alaterallyextending pin L15, carrying a roller L15, which bears against the cam K2. The cam K2 is provided with a reduced surface K5, concentric with the shaft K, and an enlarged surface K6, also concentric with the said shaft. On the rod L14 is a spring L11, confined between the guide B7 and a collar upon the rod, the spring operating normally to press the arm L15 at its free end in and downward direction and cause the wheel L16 to bear against the surface of the cam K5. In the rotation of the cam the engagement of the roller L16 with the enlarged surface K6 causes the arm to rock and rock the shaft L10 and ,arms L11, whereby the inktransferring roller L12 is swung into engagement with the fountain-roller L', and when the roller L16 bears against the reduced camsurface K5 and arm L12, rock-shaft L10, and arms L11 are rocked to carry the ink-transferring roller L12 into engagement with the ink- Aing-drum M2.

From the foregoing ,description it will be understood that in the operation of the machine ink is taken from the fountain L by the fountain-roller L and transferred from the said roller, by means of the vibrating roller L12, to the rotary reciprocating drum M2.

At opposite ends of the bed G are formroller guides N. Each guide N is preferably of the form shown most clearly in Fig. 9, having the rounded end portion i4, at which it is pivoted to the side of the bed, au edge, affording an outer track-rail t', a lip or projection affording an inner track-rail t", and a bifurcatedend 2 presenting a socket f2. Loose upon the shaft M', beyond opposite ends of the drum M2, are squared blocks i5, having recesses at opposite edges inwhich the bifurcated ends of the guides-N slide, as indicated. In the oscillation of the bed G the guides N oscillate at one end with the bed and slide back and forth at their opposite ends upon the blocks 5, which oscillate upon the shaft M. On the shafts of the rollers P are collars i6, at which the rollers travel upon the tracks G2 N. The collars i6 on the forward roller P are wide to present wide treads, which will travel upon the rails t' to the rails t" and then upon the rails 1l', while the collars @'11 on the rear roller P are arranged to travel in planes beyond the planes of the rails 'i'. The parts are so constructed and timed in their movements with relation to each other that the rails 1l register exactly with the circumferential surfaces of the drum M2 when the forward rollerPin its movementin either direction is at the forward ends of the rails i. Thus it will move from the rails t" to the drum M2 and return to the rails without jar. The rails t' in the same way register with the drum M2 when the rear roller P leaves one for the other. Thus the rollers P will at all times travel upon smooth tracks without jarring. If three rollers P are employed, additional longitudinally-extending loops 2.

track-rails should be provided to register with the drum M2 at the proper moments. Beyond their collars i6 the shafts of the rollers P are journaled in pivotal heads l10n the upper ends of the longitudinally-movable rods P, carried by swinging arms P2. Each arm P2 ispi-voted at its lower end to a bearing pin or bolt B2 on the adjacent side frame of the machine. The roller-carrying rods P extend through guides in the ends of the arms P2 and are surrounded by confined springs in the usual manner, which tend to draw the rollers in the direction of the pivots B8, and thus hold the collars or roller ends i6 to the tracks on which they run. On the forward side of each arm P2 is an extension or finger P2.

Rigidly secured at their upper ends to the lugs p2 on the bed are downward-extending arms p4, provided at their lower ends with (Seel Fig. 5.) Pivotally connected atone end to the loops 112 are links P5, which at their opposite ends are provided with loops i2, at which they are pivotally connected to the free end portions of the fingers P5. In the movement of thetype-bed in the downward direction the armsP1 are swung downward and backward to draw the links P5 in the backward direction and swing the arms P2 in the backward direction on the pivots B2, causing the rollers P to travel from the inking-drum over the tracks N,G2 across the form. In the movementof the type-bed in the upward direction the'arms P4 are swung at their lower ends in the forward upward direction, thrusting the links P5 forward and swinging the arms P2 in the forward direction, whereby the rollers move along the guides G2 N to the inkingdrum M2.

The rear ends of the links P5 may be pivotally secured at any location in the loops t2, and may be secured at their forward ends to the fingers P2 at any location in the loops i2. Thus the throw of the arms P2 and the distance of traverse of the rollers P may be regulated. For example, if the form to be printed is smaller than the capacity of the type-bed it may be locked down near the forward edge of the bed, and the links P5 may be adjusted at their opposite ends to cause the rollersv P to travel from the inkiug-drum to the end of the form and no farther.

In the oscillation of the type-bed the rollers are guided by their tracks, afforded by the rails G2 and guides N, substantially in an arc, of which the pivots B8 are the center. In other words, the rollers travel alonga smooth track without turning any angles and in a path so nearly the arc of a circle that there is very little expansion and contraction of the springs in the arms P2.

f In oscillating presses the speed of the press is limited by the speed at which the forminking rollers may safely travel, and, asin all other presses of which we are aware, the rollers have to travel around angles. The speed IOD IIO

at which such presses may he run is necessarily slow, for the reason that when running over angles the rollers will jump if traveling faster than a certain speed and will soon injure the parts by jarring. In our improved construction the speed at which the rollers may he caused to travel is practically unlimited, for the reason that they turn no angles and are held at all times securely to the tracks, and owing to this feature our improved press may be run to a speed approximating five thousand impressions an hour, as against about two thousand ve hundred impressions, which latter is considered a very high speed for other oscillating presses. Besides the increased speed thus attained our improved construction causes the rollers to be practically noiseless in operation, a feature of advantage which other oscillating presses do not possess.

By reciprocating the inkingdrum M2 a perfectly-even distribution of ink is obtained, as it revolves and slides in contact with the inktransferring roller L12 and the form-inking rollers P.

The inking-drum M2 which we provide upon our press is formed, preferably, in separable sections M5, which may be slid longitudinally along the shaft M and hunched together to aord a continuous inking-drum, or separated, as indicated in Figs. 8 or lO, when it is desired to print in different colors. As will he seen by referring to Figs. 8 and lO, the sections M5 are of different lengths to permit separation of the sections at different parts with reference to the form upon the type-bed.

If it is desired to print in three colors, for example, the sections M5 may be adjusted upon the shaft, as indicated in Fig. S, and two sliding parti-tions L17 may be placed in the ink-fountain in the position shown to divide the different-colored inks from each other. As sliding partitions L17 have been employed in connection with fountains L before it is not thought necessary to illustrate them in detail. The different-colored inks taken by the transferring-roller L12 will be separated when received from the fountain-roller and the spaces or lines of separation will register. as the transferring-roller comes into contact with the drum, with the spaces between sections MS, which spaces in practice may ap` proximate one-half an inch in length. The degree of reciprocation given to the drum by the cam K4and arm M5 also approximates onehalf an inch, or one-quarter of an inch in opposite directions from the central line of the color-separating spaces on the transferring-roller, so that in the reeiprocation the inks on the transferring-roller are not caused to intermix at the edges. When the formrollers P come into contact with the drum, the differentcolored inks are transferred thereto and spread by the reciprocating drum in a manner to touch without overlapping.

Thus on the form-rollers the dierent-colored inks will be divided byiwell-defined lines.

Our improved machine is adapted to print upon a web Z, unwound from a roll Z', through the operation of intermittent-feed mechanism R, whence it passes to cutting mechanism S, which severs the web into sheets.

Secured upon the side frame B2 of the machine are arms T T, toward `the front and back of the machine, extending laterally in an upwardly-curved direction. At their free ends the arms T are bifurcated, (see Fig. 14,) to aord sockets h, across which extend short shafts, carrying overlapping wheels h' 7L', affording antifriction-bearings for the opposite end portions of a horizontal support or shaft h2. On the outer sides of the arms T are upward-extending socket pieces 71.377,3, through which the opposite ends ofthe shaft h2 extend, and upon the shaft between the socket-pieces and adjacent hearings 7L are collars h4, which fit between the said socket-pieces and bearings to prevent longitudinal play of the shaft. The sockets of the socket-pieces prevent lateral play of the shaft. The bearings for the shaft h2 permit the latter to be rotated without apparent friction and to be readily lifted out of or inserted into place when desired.

The means for securing a roll Z upon the shaft 71,2 comprises blocks or collars h5, which may be slipped upon the shaft and fastened in adjusted position by means of thumbscrews h6 and clamps 71,7, which may he in the form of cone-shaped blocks having central longitudinal openings hs, which at the small ends of the clamps fit loosely around the shaft and are enlarged at the large ends of the clamps to tit loosely over the blocks h5. Extending through the enlarged end portions of the clamps k7 are thumb-screws 7116, adapted to engage sockets hf in the blocks h5, by means of which the clamps' may be secured to the blocks h5 and centered thereon with relation to the center of gravity of the roll. In placing a roll Z upon the shaft the clamps and one of the blocks h5 are removed. The clamps are slipped into the ends of the roll and then slipped over the shaft. The blocks h5 are then adj usted upon the shaft With the clamps and roll and fastened in position between the arms T in proper relation to the form upon the press. The blocks h5 are then tightened upon the shaft and the clamps adjusted by means of the thumb-screws 1x16 to cause the center of gravity of the roll to coincide or register with the center of rotation of the shaft. From the roll the webpasses down beneath an nnwinder, consisting of an arm or roller 71,10 on the lower end of a downwardextending rod or lever t11. At its upper end the rod is fastened upon a sleeve 7112, which loosely surrounds a pin h13 on the rear edge of the base-plate B. Surrounding the sleeve k12 and fastened at opposite ends, respectively, to an adjustable collar h1? on the pin L13 and to the sleeve k12 is a spring ILM, which tends IOC)

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