US441138A - Printing press - Google Patents

Description

7 Shets-8heet 1.

(No Model.)

J. L. 00X. PRINTING PRESS.

\ Patented Nov. 25. 1890.

(No Model.) 7 Sheets-Sheet 2.

J. L. 00X.

PRINTING PRESS.

N0. 441,188. Patenggd NOV. 25,1890.-

12%tmooao (No Model.) 7 ShetsSheet 3.

J. LJCOX. PRINTING'PRESS.

No. 441,138. Patented Nov. 25, 1890.

inane/sway I 1 V 8140124411040 4 t e e S s t e e h S 7 S .S E R P C m m U T R P m M M 0 No. 441,138. Patented Nov. 2 5, 1890.

m: new: PETERS ca, mumm, wgsmmzmu, n. c.

(No Model.) 1 7.Sheets -Sheet 5.

J. L.'OOX. PRINTING PRBSS. No. 441,138. Patented Nov; 25, 1890.

GHQ b14013 E u i m a 1 I m M H mHW mums Perms can, murmumn WASNINGTON, v. c.

- @Ucmaowo 7 Sheets-Sheet 6 (No Model.)

J. L. 00X. PRINTING PRESS.

110. 441,138. Patented Nov. 25, 1890.

2 '1 51 III mve nhoz (No Model.) 7 Sheets-Sheet 7.

J. L. 0.0x. PRINTING PRESS.

No. 441,138. Patented Nov. 25,1890

Fries.

JOSEPH L. COX, OF BATTLE CREEK, MICHIGAN, ASSIGNOR TO THE DUPLEX PRINTING PRESS COMPANY, OF SAME PLACE.

PRINTING-PRESS.-

SPECIFIGATION forming part of Letters Patent No. 441,138, dated November 25, 1890.

Application filed November 1, 1889. Serial No. 328,942. (No model.)

To ctZZ whom, it may concern.-

Be it known that I, JOSEPH L. COX, of Battle Creek, in the county of Calhoun and State of Michigan, have invented certain new and useful Improvements in Printing-Presses;

and I do hereby declare that the following is a full, clear, and exact description thereof,

reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form part of this specification, in which- Figure 1 is a side elevation of my improved printing-press, partly broken. Fig. 2 is a similar View of the opposite side thereof. Fig. 3

I 5 is an end view thereof. Fig. 4 is a detail sectional view of the cylinder, its shaft, and the actuating disk and gear and locking mechanism thereof. Figs. 5, 6, 7, and 8 are detail views illustrating the mechanism for locking :0 the cylinder to the shaft. Figs. 9, 10, 11, and

12 are detail views illustrating the cylindercorrecting mechanism; Fig. 13 is a detail longitudinal sectional view of the press, showing the paper feed and delivery devices. Fig.

2 5 14:- is a plan view in detail of the paper feed and delivery mechanism. Figs. 15 and 16 are detail views illustratingthe locking mechanism of the cylinder and its shaft. Fig. 17 is a detail side elevation of the cylinder and the inking devices. Fig. 18 is a detail View of the wrist-pin on the disk actuating the inking devices. Fig. 19 is an enlarged View of the gripper-car.

The present invention is an improved print- 3 5 ing-machine of the class known as stop-cylinder printing-presses, and its objects are to simplify and cheapen the construction of such presses, and principally to improve and perfect their operation.

The invention consists, first, in the combination, with a reciprocating bed and impression-cylinder, of novel mechanism for automatically locking the impression-cylinder during the return-stroke ot' the bed, so that the impression-cylinder makes within a fraction of an entire revolution during the forward reciprocation of the bed; second, in peculiar devices for giving the cylinder a slight forward movement sufficient to complete its 5:) revolution independently of the main actuating mechanism thereof, whereby the cylind er is corrected and absolute accuracy of register attained,and, third, in the paper-feed ing mechanism whereby the paper sheets can be adjusted in accurate position for engage ment of the cylinder-grippers at the time the printed sheet is being withdrawn from said cylinder.

The invention further consists in certain novel details of construction and arrange- 6o ment of parts, whereby the several mechanisms are caused to operate automatically at the proper time, all of which will be clearly understood from the following description and claims.

Referring to the drawings by letters and figures, 2 designates the frame-work of the press, which is'rectangular in form. On the inner faces of the side pieces 3 of the frame, near the upper edges thereof, are formed horizontal guides 4: 4", upon which moves a reciprocating type-bed 28.

71 designates a shaft journaled transversely of frame 2 near one end thereof in proper bearings, as shown, and having a 75 crank-arm 12 on its inner end.

(Set is a large gear-wheel on the outer end of said shaft, meshing with a pinion on a shaft 70, mounted in proper bearings in the side of the main frame, and in a bracket 13, attached to said side frame, the shaft 70 lying transverse to the main frame and above shaft 71.

771 and 772 are fast and idler pulleys on shaft 70, through which power can be applied to the press by proper belting, and 133 is a 85. belt-shifting lever pivotally mounted on a depending arm 118 of bracket 13, and connected by a transverse rod 131 with a cranked shaft 132 on the opposite side of the main frame, and 165 is a lever for operating shaft 132, so go that the belt can be shifted from either side.

of the machine and the press started or stopped.

18 18 are two parallel racks properly mounted on the frame at bottom. and lying 5 centrally and longitudinally thereof.

7 S 78 are two pinions keyed on a stub-'shaf t 55; and running on and over racks 18, while 8 is a large gear-wheel keyed on-shaft 554 between pinions 78. Gear 8 meshes with a rack 20 on the under surface of bed 28.

19 designates a pitlnan, one end of which is connected to a wrist-pin 555 on crank-arm 12, while the other end of the pitman is bifurcated and embraces pinions 78 78, the shaft 554 being properly journaled in the extremities of the bifurcations. When shaft 70 is rotated, motion is imparted to shaft 71 through the gearing, and from shaft 71 motion is imparted through pitman 19 to the shaft 554, and causes it to reciprocate back and forth over racks 18. Pinions 78, meshing with said racks, causes "ear 8 to revolve, and the latter imparts movement to bed 28 through rack 20. As gear 8 is much larger than pinions 78, but is compelled to revolve with the latter, it is evident that a much greater and quicker movement will be imparted to bed 28 than to the pitman 19 or shaft 554. In practice the relative sizes of the pinions and gear are such that the bed will travel about three times the distance in either direction that shaft 554 moves, orthree times the diameter of the circle described by crank 12 in its revolution in both its forward and backward movements. Hence by regulating the length of the crank 12, I can regulate the length of reciprocation of bed 28. The bed has one forward and one backward movement for each revolution of crank 12 or shaft 71. From the upper edges of thesides of the main frame, near the front ends thereof, rise uprights 4 4, between which are supported journal-boxes 81, which can be adjusted vertically by set-screws 75, as shown. In said boxes is journaled the shaft 46 to the inside of uprights 4 4, and at the end of the cylinder adjoining bracket 13 is a gear 22, loosely mounted on shaft 46. This gear meshes with a rack-bar 21 on the upper edge and at one side of bed 28, so that the gear 22 is actuated by the reciprocation of said bed.

79 is a disk keyed on shaft 46 close to and outside of gear 22-and having a notch 779 in its periphery, as shown. This disk is locked at the proper time to gear 22Vby a dogging device mounted on gear 22 and operated by mechanism hereinafter described, so that the cylinder will be turned with gear 22 when the disk is engaged, or the gear can turn independently of the cylinder when the disk is disengaged. Shaft 46 projects beyond the side of the main frame at the end next gear 22, and on its outer end is mounted a brake- Wheel 142, and-immediately under this wheel is a brake-shoe 87, properly pivoted on the main frame and operated bymechanism, hereinafter described, at the proper moment. On the shaft 71 outside gear 64 is mounted a compound cam-disk 664, which has an inner eccentric cam-race 115, formed by parallel outstanding flanges, the outer one of which 215 forms a cam for operating the feed-board-shiftin g devices, while the periphery of disk 664 is formed with cam -surfaces 315, which operate the brake mechanisms, and the object and effect of these several cam-surfaces will be eX- plained in connection with the mechanisms they operate hereinafter.

Beginning with the brake mechanism, 35

designates a cranked arm pivoted at its bend upon a stud 52 at the side of the main frame. The longer arm of said lever carries a friction-roller 50, which bears against the periphery of disk 664, and when this roller passes over cam-surfaces 315 lever 35 is oscillated. The short arm of lever 35 is adjustably connected by an upright rod 38 With brake-shoe 87, and when lever 35 is oscillated the brake is applied or released. The weight of the shoe and rod is sufficient to keep the shoe away from wheel 142 unless lever 35 is positively actuated.

The locking mechanism of gear 22 and disk 79 is constructed, and is operated from camgroove 115 of disk 664, as follows: On the outer face of gear 22, near the periphery thereof, are two parallel guides at a, between which moves a latch b, that is pressed inward toward the axis of the disk by a spring d, attached to a lug on the face of the gear. The inner bolt (2 is thus pressed against the periphery of disk 79, around which it travels until it coincides with and enters notch 779, thereby locking the disk to the gear and cansing it to revolve the cylinder and brakewheel therewith.

147 designates a stud projecting inward at the upper end of an upright4, adjoininggear 22, and on this stud is journaled an oscillating lever 39, the inner end e of which is enlarged and lies close to the face of gear 22 and in a position to intercept a stud 0, projecting outwardly from the upper end of latch b. The inner face of end 6 is, however, formed with a groove or slot f, flared at its ends and su fficiently wide -to permit the stud c to pass therethrough when lever 39 is in a normal position; but if the lever is shifted at the proper moment latch b may be engaged thereby and lifted from notch 779,as stud ccan be caught in slot f and lifted as it passes through the slot, so that when it emerges therefrom it has passed notch 779 and must traverse the entire circumference of the disk before it can again engage therein, and during this pe riod the cylinder is stopped. The other end of lever 39 is connected by a rod 37 with one arm of a crank-lever 26, which is pivotally mounted on a stud 51, journaled in the side of the main frame. ()n the other arm of lever 26 is a friction-roller moving in acam-race ll5,which race is so formed that for one half of the rotation of the disk rod 37 will be elevated, and for the remaining half said rod will be depressed. Consequently lever 39 will be shiftedonce up and once down during the revolution of disk 664. The teeth of gear 22 and rack 21 are of such relative numbers that gear 22 will be turned within a small fraction of an inch- (about three-sixteenths) of one revolution. backward while the bed is traveling from,

front to rear, and the levers and cams are so adjusted that bolt b will be engaged and,the cylinder turn ed forward during the backward movement of the bed, but will be disengaged and the cylinder remain stationary while the;

bed moves forward, the gear 22, however, turning alternately forward andbackward as actuated by the movement of the bed.

It is necessary to the correct working of the press, and a desired object, to have the impression-cylinder 446 make one complete forward revolution less a fraction of an inch of its circumference, about three-sixteenths during the time the bed is traveling from front to rear of the press, and this is accomplished by so adjusting or timing the cam 115, levers 26 and 39, and the position of gear 22 on shaft 46 that the bolt 1) on gear 22 will be locked with disk 79 at the moment the bed starts backward, so that the cylinder is rotated with the gear. At the moment the bed reaches the end of its backward travel, and in the slight interval ensuing before it starts on its return forward movement, which interval is due to the time required for crank 12 to pass the deadcenter, at that moment the cam 115, through the proper levers, operates bolt 1) and disengages it from disk 79, so that the cylinder stops short of a complete revolution, while gear 22 is turned backward during the forward movement of the bed until it resumes the position it had when the bed first moved backward. The normal position of the gear 22 and cylinder and disk 79 is indicated in Figs. 5 and 7, and the position of the cylinder and disk 79 when moved backward with the gear, as described, is indicated in Figs. 6 and 8. WVhen the gear 22 is returned to its first position, bolt 1) is not in proper position to engage notch 7 7 9 of disk 79, as the disk has not been turned backward and has not made a complete revolution, andit is necessary to move the cylinder and disk forward sufficiently to cause notch 779 to register with bolt 1), so that when the bed again moves backward the gear 22 and pinion 79 can be locked and moved, as before described. The cylinder thus remains motionless during the return travel of the bed, or rather is turned a fraction of an inch forward while the gear 22 is being turned backward by the return movement of the bed. The cylinder has only a forward rotation, while gear 22 has both forward and backward movements.

The mechanism for turning the cylinder the fraction necessary to complete its revolution isas follows: (See Figs. 9, 10, 11, and 12.) A radial slot A is made in the web or a spoke of brake-wheel 142, and in this slot is adj ustably secured a lug B, as shown, the head 0 of which projects from the inner face of wheel 142 near its periphery. 43 designates a pushrod having its upper end slotted and partially supported and guided on a stud 67 projecting from the main frame at one side of-and below wheel 142. The lowerend of rod 43 is pivoted to one arm of a crank-lever 45, which is pivoted on a stud 53 of the main frame between levers 26'and 35, and the longer arm of lever 45 has a friction-roller engaging in racecam 135 of disk 664. The upper end of rod 43 lies in such position normally that when the shafts 70 and 71.

lifted by the agency of the cam and lever 45.

it will strike lug B and lift the latter, imparting a slight rotary movement to wheel 142 and through the latter to the shaft 46 and cylinder. The cams and levers and wheel 142 are so adjusted that lug B is brought above the end of rod 43 when the cylinder revolution thereof and cause notch 779 of,

disk 79 to be in position to register accuurately and engage latch b at the proper mo-;

.ment. The brake 87 is arranged to bind wheel 142 just as latch 19 is disengaged from disk 79, and thus prevent any movement of the cylinder by inertia after its release from the gear, and the brake also prevents the cylinder gaining any momentum when actuated by the push-rod, so that the register is accurate; but in order to avoid any possibility of the cylinder being moved too far I employ what I term the dead-latch 68, which is pivoted on stud 67, as shown,'and has a head D on its upper end, which lies in a position to engage with lug B of the brake-wheel, as indicated in Figs. 9, 10, 11, and 12, and stop the movement of the brake-wheel at the precise point where it should be in order to register notch 779 and latch b.

On the lower end of latch 68 is a laterally inwardly-projecting piece E, which passes through the side of the press between uprights 4 4 and below box 81, and on the end of piece E is a depending angular finger F, which stands in a position to engage a stud G, attached to the side of bed 28, near the front end thereof, and rests on said stud G during the reversal of rack 21, as shown in Fig. 9, where the rack is at the limit ofits movement, said lug being arranged to strike and oscillate the latch 68 at the moment the bed reaches its rearward position and after the push-rod has shifted the cylinder, as described. The latch is thus shifted so that head D is out of the way of lug B sufficiently long for the latter to pass, but drops back into position to engage therewith as the bed moves forward.

The feed-board 181 is supported on inclined supports 33 at the front end of the press above The lower section 182 of this board is hinged on a rod 180 and supported near the cylinder on a transverse shaft 72,.which is provided on its under surface with cam-fingers 772, whereby the section is lifted when the shaft 72 is rotated. This rotation is accomplished by means of a 'crankarm 84 and a rod 36, (see Figs. 1 and 13,) the lower end of which is connected to one end 215, as shown, the parts being so arranged and adjusted that the feed-board islifted while the cylinder is at a standstill, but low.-

the end of the cylinder opposite gear 22 is keyed-a gripper-segment 172, (see Fig. 17,) which iszengaged and operated by a. rock-se ment 167, pivotally mounted on the end-of:

the-cylinder and controlled by a spring. 267,

which keeps the fingers normally closed. Thefingers arereleased'or opened at the propermoment, which isat the moment when the cylinder comes to azstandstill, by meansof: thevtripping-lever 176, which is .mounted' on a stub-shaft 164, journaledinv themain framebelow: the movablesectionof the feed-board, and-having a crank-arm on its outer end, which is connectedby a rod 162 with a crankarm v160 on the outer end of ashaft 163, journaled transversely in the bottom of the frame.

and havingon its innerend a lever 159, providedwith a -friction-roller on. its free. end, which roller plays in a race-cam formed on a wheel 166, as shown, said wheel being mounted on the shaft 71 inside the frame. at the proper momentshifts lever 159, and through the connections thereofactuates tripping-lever 176.

197 is a guideframe pi-votally mounted on brackets'200 above the cylinder and hinged section of feed-board. This frame is provided with a series of dependingfingers 1 1, against which the paper canbeadjusted as it is fed into the press, and thereby properly aligned to be grasped accurately by the grippers,

their parts being of ordinary construction,

and not herein claimed.

' 397 is a'lug on one bracket-rod, by which frame 197 is prevented from dropping too far, and 297 is alug on the side of the-frame 197 next lever 176,.and which is engaged by said lever as the: latter rises, and thereby lifts.-

frame 197.

In operation, when the cylinder has been turned, as described, by the reciprocation of the bed the gripper-fingers have been brought uppermost just beyond the end of the feedtable, and at this moment lever 176 is operated by the means described and caused to descend, striking segment 167 and oscillating. it,so that the gripper-fingers are thrown backv and release the printed sheet, as indicated in Figs. 13 and 14, and the printed sheet is re moved by-the means hereinafter described,

the feed-table being held elevated. At the moment the printed sheet is removed, however, the-table is lowered by themechanism described. and a new sheet fed down by the operator .and simultaneously the lever 176 is. elevated, releasing the gripperfingers, which.

closeupon the-edge of the new sheet, and as The cam.

lever 176 rises it engages lug 297 of frame 197 and lifts said frame, permitting the new sheet of paper to be drawn around with the cylinder.

187 are the delivery-frames at theside of the cylinder opposite the feed-board. (See Figs. 1 and 13.) Said frames have top bars 188 inclined towardthe cylinder and forming a tracksupport' for a gripping delivery-car 190, which travelsthereon. This-car 190 (see Fig. 14) is a. rectangular frame mounted on flanged wheels 191, and from its front bar or.

rail'inext the cylinder project a series of fingers h, which when the car is at the lower end of the track will overlie the edge of the sheet of paper on the cylinder.

193 is a rod journaled transversely in' the.

car below fingers h and provided with a series of fingersg, which lie below and operatewith fingers h. The rod 193 is provided with an.

upstanding crank 293, which is connected" to a rodz393,playing through a-perforated stud. 493 on the end of thecar and carrying :on its end acoiled spring 593, kept thereonland. tenat the lower end of the rails the fingers will; be caused to open to receive theedgeof the printed sheet on cylinder 446, but the finger will disengage the lug just as the car-reaches its'lowest position,sothat thefingers will re main closed as the car is retracted, the finger passing under the lug on its return and merely causing them to bite the paper 1 more tightly in so doing. The finger it engages another tripping-lug 788 on the upper end of rail 188 when the carreachesitshighest positionand releases the sheet, permit-ting the latter to fall upon a bank-board W, which is supported upon frames 187, as shown, and has properstops and devices-to prevent the sheets falling therefrom.

The car 190 is operated 'fromthe inking. rollers as follows:

140 140 designate the form-rollers, and 156 the distributing-roll above the same, all properly journaled in a bearing on or secured to the main frame. Roll 156 is driven by gearing from a rack 154 on the bed 28, as usual. Above the roll 156 is the ink-fountain 97, the feed-roll of which has its shaft 104 extended beyond theend of the fountain-case and has a ratchet-wheel 204 keyed upon it, and outside this wheel a loose pinion 304, which carriesa dog 404, that engages said ratchet at proper times. This pinion is operated by arack-bar 110,the end of which is supportedupon. a roller 113,.as shown, to keep it in engagement with said pinion. The front endof said bar is connected to a wrist-pin 210, whichis adjustably. secured in agroove of a block 310,

ICC

by means of dog rotates the feed-roller 10A. intermittently in one direction only, as is evident.

132 is a rock-shaftbelow the ink-fountain, from which rises arms 232, that carry a ductorroller 137, and226 is a crank on the outer end of said rock-shaft pivotally connected vto a pitman 126, the opposite end of which rests in a guide 326 on the main frame and bears against the periphery of cam 102, being held in contact with the cam by a spring 302, as shown, and by said cam the rock-shaft is operated and the ductor roller alternately thrown in contact with roller 60& of the fountain and with one of a series of distributing or composition rollers 255, by which the ink is delivered to the roller 156 and thence to the form-rollers. The operation of these parts is obvious.

X is a sheave-pulley on the outer end of the shaft of roller 156, to which is fastened one end of abelt or strap Z, which runs up to and is wrapped around and secured to a sheavepulley .Y on the end of a horizontal shaft V, journaled in the upper ends of rails 18-8, and on drums on said shaft are wrapped cords or strapsyy, the ends of which are connected to the car 190. By this arrangement the straps y y are unwound as the bed is reciprocating forward, and the car 190 descends by gravity on its tracks, and when the bed moves backward the car is hauled up the tracks. These parts are hereinafter referred to.

ll'designates a cross-beam in the press beneath the bed and directly below the cylinder, and 15 15 designate a series of rollers mounted in bearing-boxes 16 16 on top of beam 11. Said rollers serve to support the bed as it passes under the cylinder and relieve pressure on the guides, and the bed 28 is provided with longitudinal ribs 228, which bear on rollers 15, as shown.

If the parts have been properly constructed and adjusted, the operation is about as follows: A quantity of paper of about the desired size is placed on the feed-board 182 and the operator feeds one sheet down to guides 197, where the fingers m of the cylinder-gripper catch the edge of the sheet and bind it against lugs "n n of the bar. Just as the grippers mare closing the feed-board 182 is lowered by the cams and levers described and permits the sheet to pass off smoothly and conform to the face of the cylinder. At the moment the cylinder-grippers close the latch b is engaged in notch 779 of disk 79 and the bed starts backward, causing the cylinder to make a backward revolution and making an impression from the type on the bed upon the sheet carried by the cylinder as it passes the shoe 87 being brought up against brakewheel 142 and holding the cylinder in such position, and the gearing is' so adjusted that the cylinder stops revolving just as the crank 12 reaches a dead-center, and the latch-lever 39 is operated to disengage boltb from notch 7 7 9, and the gearD beginsits reverse rotation. During the revolution of the cylinder car 190 has been moving down toward the cylinder, and as the latter comes to a stop the car reaches the lowest point of its travel, and the edge of the paper comes between fingers g and h, which are opened, as described, by the'tripping devices and closed upon the edge of the paper just as fingers m m are released by the descent of lever 176. The grippers g and h are so arranged on car 190 that they will alternate with fingers m m on the cylinder and fingers g will pass in between lugs n u and un der the edge of the paper, so that the car grips the paper simultaneously with its release from the cylinder. The feed-board section 182 is raised, however, just before the cylinder stops and before the car 190 has reached its lowest point, and the operator can adjust another sheet of paper against said guides while the grippers on said car 190 are catching the sheet on the cylinder. As soon as the cargrippers catch the sheet and while the cylinder is at a standstill during the return movement of the bed the sheave X and belt Z cause shaft V to wind straps 'y y and draw the car up its tracks until lever j is tripped and the fingers opened. The printed sheetis then free to drop upon bank-board W. Just before the bed reaches the front position the push-rod 43 is raised, and, coming in contact with lug B on wheel 142, turns the cylinder just three-sixteenths of an inch forward to a positive point every time, so as to register the sheet to the same point on the cylinder close and to bring notch 779 in position to receive latchb easily. This action is insured by the dead-latch 68, as described. a By this time the bed has reached the front of contact with and smear the freshly-printedl matter. The push-rod 13 and dead-lock 68, which I term the correcting device, take up all lost motion of the cylinder, and the grippers m only close after the c'ylinders position has been corrected. I can thus i11- sure a positive register on work printed on both sides of the sheet or for chromatic printing. The mechanism forin'king the press is,

The printed sheets are by the means described, made to operate the paper-delivery mechanism, and I thus dispense with any expensive movements for the delivery, which are incident to the common front-delivery presses. The gripper-car travels downward by gravity.

Having thus described my invention, I claim as new 1. In a stop-cylinder press, the combination of the cylinder and the bed and mechanism whereby the cylinder is revolved during the backward movement of the bed and locked during the forward movement thereof, with a traveling gripper-car moving on inclined ways and adapted to withdraw the paper from the cylinder during the forward movement of the bed, the drums and belts for raising and lowering the car, and the gearing for actuating the drums from a rack on the bed, substantially as described.

2. The combination of the cylinder, its shaft, the toothed disk keyed on said shaft, and the loose gear mounted thereon, carrying a locking-bolt adapted to engage said toothed disk, with mechanism for operating said gear, and the slotted lever and its actuating-connections, substantially as described, for operating the bolt on said gear to lock the gear 121mg cylinder together, substantially as speci- 3. The combination of the reciprocating bed and the cylinder, at gear-wheel mounted on the cylinder-shaft, engaging a rack on the bed and the notched disk, and the dog and its connections, substantially as described, for locking the gear to the cylinder, whereby the cylinder is given nearly one forward revolution during the backward movement of the bed, but is at a standstill during the forward movement thereof, with the mechanism for imparting a slight movement to the cylinder during the forward movement of the bed to complete one rotation thereof, substantially as described.

4. The combination of the cylinder, its shaft,

7 the. toothed disk keyed thereon, and the loose gear mounted on said shaft and carrying a locking-bolt adapted to engage said toothed disk, With the pivoted oscillating lever having a slotted head adapted to engage said bolt during its rotation with the gear, and the le- Vers, the cams for operating said levers, and the mechanism for actuating said gear, substantially as described.

5. The combination of the cylinder, its shaft, the toothed disk keyed thereon, and the loose gear carrying dogging devices adapted to engage said disk, and the brake-wheel on said shaft, with the mechanism for operating said gear, the levers and cams for automatically operating the dogging devices to lock and unlock the gear and disk, the mechanism for applying the brake simultaneously with the disengagement of the gear and pinion, and the mechanism for shifting the cylinder into position for accurate engagement of the gear and disk while the latter are disengaged, all substantially as described; A

(i. In a stop-cylinder press, the combinatio of the cylinder and mechanism for partially rotating the same during the printing operation, with awheel mounted on the cylindershaft, a lug thereon, a push-rod below said wheel adapted to be thrown into engagement with the lug to partially rotate the cylinder and complete the revolution thereof after the printing has been effected, and the dead-latch 68, pivotally mounted on the push-rod and adapted to engage said lug to limit the movement of the cylinder by said rod, all substan tially as described.

7. The combination of the main frame, the

shaft 71 journaled therein, the reciprocating bed, and the gearing and connections between said shaft and bed, with the cylinder, the toothed disk on its shaft, the loose gear-wheel thereon, the rack on the bed operating said gear, a bolt on said gear adapted to be engaged with the disk to lock the gear and cylinder, and the actuating devices for said 'bolt operated from a cam on said shaft, all substantially as and for the purpose described.

8. The combination of the main frame,the shaft 71, the rack-bars, the gears reciprocat ing thereon, and the connection between said gears and shaft, with the bed operated by said gears, the cylinder carrying a loose gear meshing with a rack on said bed, and atoothed disk and brake-wheel onits shaft, with the latch on said gear adapted to engage the disk, the levers for operating said latch, the

brake levers and shoe, and the cams on said shaft for operating the brake and latch levers, all substantially as and for the purpose described. v

9. The combination, with the cylinder and mechanism, substantially as described, forimparting a partial revolution thereto in one direction only, and the wheel mounted on the cylinder-shaft, carrying a lug B, with the slotted push-rod 43, its guide-stud (37, the actuating-levers and cam adapted to engage the under side of lug B and move the cylinder, and the dead-latch 68, pivoted on stud 67, and having a head engaging the upper surface of lug B to regulate the movement of the cylinder by the push-rod, all substantially as described.

10. The combination of the cylinder, its shaft, the toothed disk keyed thereon, and the loose gear on said shaft, and the latch b thereon, adapted to be engaged with the disk, with the brake-shoe engaging said wheel, its operating rod and levers, the slotted lever engaging and operating latch 1), its operating rod and lever, and the main shaft and camdisk 446 thereon, operating the said levers,

on said gear adapted to engage said disk and lock the gear and disk, with the main shaft,

- the connections between said shaft and bed for reciprocating the latter, the cam-disk 446 on said shaft, the series of levers for shifting the dogging devices of the gear operated by said disk, and the brake-levers operated by said disk also, substantially as described.

12. The combination of the cylinder, its shaft, the notched disk thereon, and the loose gear-wheel having radial guides, a bolt 1), playing in said guides and controlled by a spring and bearing on the periphery of disk 7 9 and adapted to engage the notch thereof, with mechanism whereby the bolt and notch are engaged and disengaged automatically during the operation of the press, substantially as described.

13. The combination of the cylinder, the reciprocating bed, and mechanism for transinitting motion from the bed to the cylinder during the forward reciprocation of the bed only, whereby the cylinder is turned within a fraction of one revolution, with a wheel on the cylinder-shaft, carrying an adjustable lug B, a push-rod below said wheel adapted to be thrown into engagement with said lug to impart sufficient motion to the cylinder to complete its revolution during the backward movement of the bed, and the latch-rod having a head adapted to engage lug B and limit its movement by the push-rod, and also having a finger adapted to be struck by a lug on the bed, whereby the latch is thrown out of engagement with the lug previous to the forward movement of the bed, substantially as and for the purpose described.

14. The combination, with the cylinder, its shaft, the loose gear 22 mounted thereon, having a spring-actuated bolt 1), and the notched disk keyed on the cylinder-shaft, with the reciprocating bed having a rack engaging said gear, the main shaft, the cam-disk on said shaft, the cranked lever operated by said disk, the lever 39, having a slotted ende, adapted to engage boltb and shift the same when said lever is oscillated, and the rod 37, connecting lever 39 with the crank-lever, substantially as described.

15. The combination, in a stop cylinder press, of the reciprocating bed, a cylinder having a gripping device and the notched disk, the loose gear, and dogging devices, whereby the cylinder is given a partial revolution during the backward movement of the bed only, and stopped during the rearward movement of the same, with the hinged feedtable and its guide-frame, and the cams and levers, substantially as described, for elevating said table and frame just before the cylinder is stopped and for lowering the same simultaneously with the rotation of the cylinder, substantially as and for the purpose described.

16. The combination of the cylinder having a gripping device and mechanism whereby the cylinder is given successive rotary movements and stopped when the grippers are uppermost, with a hinged feed-table and a paper-delivery gripper-car moving' on inclined ways and operated by belts and drums and the devices for revolving these drums in alternate directions, the mechanism whereby the table is lowered to feed a sheet of paper to the cylinder as the latter revolves and is raised as the cylinder stops, and mechanism whereby the gripper-car is caused to engage the printed sheet on the cylinder and remove the same therefrom while the cylinder is at rest, all substantially as described.

17. The combination, in a stop-cylinder press, of a reciprocating bed, the rack thereon, the cylinder, its shaft, the notched disk, and loose gear thereon, the spring-actuated bolt on said gear engaging the notched disk, and the oscillating levers, rod and cams for actuating saidbolt to engage the gear and disk during the forward movement of the bed, with mechanism for stopping the cylinder during the return movement of the bed, all substantially as and for the purpose described.

18. The combination of the cylinder, the reciprocating bed, and mechanism, substantially as described, whereby motion is imparted from the bed to the cylinder during the forward movement of the bed sufficient to give the cylinder a partial revolution, with the adjustable lug properly mounted on the cylinder-shaft, the push-rod 43, and its oper ating levers and cam, whereby motion is imparted to the cylinder during the returnstroke of the bed sufficient to complete one revolution thereof, substantially as and for the purpose specified.

19. The combination of the reciprocating bed, the cylinder, its shaft, the loose gear thereon, and the notched disk, the locking bolt and its operating devices, substantially as described, for automatically locking the gear to the cylinder during the forward move-' ment of the bed and for disengagingittherefrom upon the return movement of the bed, with the lug B, the push-rod 43, the levers and cam for operating said rod, whereby a slight movementis given the cylinder during the return movement of the bed, and the I JOSEPH L. COX.

Witnesses:

A. E. DOWELL, P. L. BRoo s.

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