US532193A - Printing-machine - Google Patents

Description

12 Sheets-Sheet 1.

(No Model.)

G. R. CLARKE.

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(NovMoae'Jl.) 12 sheetssheet 2. G. R. ,CLARKE` PRINTING MACHINE.

N0. 532,193. Patented Jan. 8, 1895.

(No Model) 12 sheets-sheet s.

' G. B.. CLARKE..

PRINTING?` MACHINE. N0. 532,193. Y u Pa'tentedJan. 8, 1895.

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G. R. CLARKE. PRINTING MACHINE.

No. 532,193. Patented Jan. 8, 1895.

12 Sheets-Sheet 5.

(No Mode1.)'

G. R. CLARKE. PRINTING MACHINE.

No. 532,193. Patented Jan. 8.1895.

(No Model.) 12 sheets-sheet 6.

G. R. CLARKE. PRINTING MACHINE.

N0. 532,193. Patented Jan. 8, 1895.

(No- Model.)

12 Sheets-Sheet 7'. G. R. CLARKE,

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(No Model.)

G'. RCLRKE.

' PRINTING MACHINE.

Patented Jan.

No 5 3 2, l 9 3 ffy-15b mnsesw l co, vnu-wwwa, @Ammann o c (No Model.)

12 Sheets-Sheet 10.

G. RK. CLARKE.. PRINTING MACHINE,

` Pat med Jan. 8, 1895.

(No'Model.) 12 sheets-sheet A11.

G. R. CLARKE.

PRINTING MACHINE. No. 532,193. Patented Ja.11. 8, 1895.

wzessesx- (Nomodn f 12 Sheets-Sheet 12 G. R.`GLARKB. PRINTING MACHINE',

NO. 532,193. Y Patented Jan. 8, 1895.

I Mli/naires.'

UNITED STATES PATENT OFFICE.

GEORGE R. CLARKE, OF MONTELL, TEXAS.

PRINTING-MACHINE.

SPECIFICATION forming part of Lettersratent No. 532,193, dated January e, 1895. Application tiled March 22, 1894. Serial No. 504,584 (No model.)

To all whom, t mm1/y concern:

Be it known that I, GEORGE R. CLARKE, a citizen of the UnitedStates, residing at Montell, in the county of Uvalde and State of Texas, have invented certain new and useful Improvements in Printing-Machines,of which the following is a specification.

This invention relates to a self-feeding and .self-delivering printing machine which prints not rotate, being locked to its carrying-frame with its flattened face down or next the type. On its forward, printing movement the cylinder rolls over the form, the sheet of paper being interposed and receiving the impression. When the gripper arrives at the upper side of the cylinder (the latter rolling forward) a vibrating delivery gripper moves backward,and interposing its open jaws between the closed jaws of the cylinder gripper, seizes the edge of the printed sheet at the moment the latter gripper opens its jaws and releases the sheet. The cylinder continues to rotate forward and the delivery gripper moves forward at a speed j corresponding with -the peripheral speed of the cylinder, thus carrying the printed sheet forwardand depositing it on an upper, delivery platform. After the cylinder has completed one rotation, it is again locked `to its frame, the gripper thereon is opened, and the cylinder moves alittle farther forward so that its jaws may take under the uplifted edge of the segregated, topmost sheet on the pile on the sheet-platform. This sheet is then seized and borne back as before described. The cylinder is mounted on an arbor provided with track wheels which run or roll on track-rails on the type-bed, which rails are, bypreference, made adjustable so as to regulate the impression. These cylinder wheels roll back and forth, and to compel them to roll, a toothed side of the machine.

wheel is fixed on the cylinder arbor and arranged to gear with a rack secured to the typebed or the frame. The cylinder is drawn down by springs to provide pressure for printing, and suitable in king mechanism is provided to ink the form of type.

The mechanism for locking the cylinder alternately to its frame (to prevent its rotation) and to its wheels (to compel it to rotate), is carried by the cylinder and its wheels, as is also the gripper-operating mechanism. These mechanisms are actuated "oy cams mounted on the machine. In case, for any reason, the cylinder gripper does not seize a sheet, the cylinder remains locked against rotation and does not roll over the inked types. This prevents the inking of the cloth or paper which covers the cylinder.

The annexed drawings illustrate an embodiment of the invention.

Figure 1, is an elevation of the left-hand Fig. 2 is a front elevation. Fig. 3 is a plan, and Fig. isavertical section on line A A, These are general views. Fig. l is a detail view showing the cylinder taking a sheet. Figs. 2a and 2b are sectional detail views otl the air-exhausting device of the feeder. Figs. 4a and 4b are detail lviews showing the operation of unlocking the cylinder from its frame. Figs. 5, 6 and 7 aredetail views illustrating the feeding mechanism for the blank sheets. Figs. 8, 9, 10 andll are detail views of the delivery-gripper. Figs. l2 and 13 are, respectively, a side elevation and longitudinal section of the cylinder, detached, and Figs. 13a and 13b are detail views of the sheet-guard. Figs. 14 to 22 General Description.

l is the frame of the machine, in general. 2 is the driving shaft. 3 are the tight-andloose driving pulleys on said shaft. 4 is a pinion on the shaft 2, gearing with a spur wheel, 5, on a cam-shaft, 6. This cam-shaft rotates in the direction indicated by arrows 6a.

7 is the platform for the pile of blank sheets,

and 7 is the platform for the pile of printed sheets.

8 is the type-bed, which supports the form of type.

9 is the impression cylinder and its attachments.

10 is the ink-distributing platform, and 11 are the inking rollers. This inking apparatus may be of any kind.

The arbor, 9, of the cylinder 9, has bearings in blocks, 9, mounted in guides in the upper ends of two arms, l2, on a rock-shaft,` 13. These arms are coupled by connecting-rods, 14, to pins in crank-disks, 15, on the camshaft 6. The inking rollers are coupled by links, 11, to the arms 12.

Feeding llecham'sm.

Extending across the platform 7, is the hollow suction-roller, 16 (see Fig. 6), which has in it a row of holes, 16a. This roller Y is mounted rotatively in two vibrating arms, 17 and 17a, on a rock-shaft, 17X. The roller 16, has a bearing at one end on a hollowjournal, 17h, on the arm 17, and this hollow journal communicates with a tube, 18, which extends down along the arm 17, to the shaft, 17X, and connects with a bore, 17, in same (see Figs. 2f and 2b). The air-exhauster comprises a cylinder, 19, fixed to shaft 17X, by a sleeve, 19X, where there is a hole, 171. A piston, 19, in the cylinder is coupled by a rod, 19h, to the arm of a lever, 2O (Fig. 4), fulcrumed at 20X. This lever has two arms, 20, adapted to be acted on alternately 'by a stud, 2l, in a cam, 22. This stud rocks the lever, moves the piston and alternately exhausts the air from the suction-roller 16. This roller 16, is provided at one end (Fig. 6) with a pinion, 16, which gears with a rack, 16d, pivoted at 16e (Fig. 7). The rack is supported on a roller-stud, 16f,.in the arm 17a. The platform 7, is kept pressed up to the suction-roller 16, with a yielding pressure by a device seen in Fig. 4. A weight, 23, is secured to a lever, 23a, fulcrumed on a rod, 24, its longer arm taking under the front part of the platform 7. Crossing the lever 23a, is a lever, 23h, which is pivoted to lever 23a; this lever 23h, which is pivoted to the platform 7, and has a rollerstud at its lower end engaging a guide-track, 25, on vthe frame. There shouldbe two of these yielding supports, one at each side of the platform.

The arms 17 and 172, which carry the suction-roller 16, vibrate in unison with the arms, 79, which carry the delivery gripper (to be hereinafter described), being coupled thereto by links, 80. l/Vhen the suction-roller 16, is over the rear edge -of the pile of blank sheets on the platform 7, the holes 16a, will be down on the topmost sheet. The air is now exhausted from the roller and it starts to roll forward (to the right in Figs. 1, 2, and thus lifting the edge of this sheet. A segregating blade, 26, coupled to the roller-arms by links, 28, and vibrating with the roller,

now advances under the uplifted edge of the sheet and the vacuum being then broken the sheet falls on the elevated back of the blade 26. This back is transversely grooved, as seen in Fig. 3 to allow the teeth of the cylinder gripper to pass under the sheet, and at this moment the non-rotating cylinder, with the gripper open, advances to the position seen in Fig. 1a. The gripper closes on the sheet, and the cylinder moves back.

To permit the cylinder todraw out the seized sheet from under the suction roller 16, the blade 26, presses down a little the platform 7, and the pile of sheets thereon. This is effected by the following described means: The' blade 26, is secured to arms, 26a, and these arms are coupled at their lower ends to arms, 26h, on a rock-shaft, 27, mounted in the arms 17 and 17a. This shaft has an arm, 27, which carries a stud that bears'on the pe riphery of the cam 22 (see Fig. 4), beforementioned. This cam is so formed and set as to actuate the blade 26,to the proper extent and at the proper time. When the blade draws back it just frees the pile of sheets.

Cylinder and its Locking llfecham'sm.

These devices will be described with especial reference to Figs. 12 to 22a. The arbor 9b, of the impression cylinder has rotative bearings in blocks 9a, in guides in the upper ends of the arms 12, and these blocks are secured to springs, 12a (Fig. 4), in the arms. These springs have tension-regulating nuts, 12b. On the arbor 9b, are Xed the cylinder wheels, 9C and 96C, which run on'track1ails, S, on the type-bed. The toothed wheel,9, on the arbor gears with a r-ack, Sb, on the typebed. The cylinder-frame comprises tw'o arms, 9e, on the bloc-ks 9, and a rod or bar, 9i', connecting said arms. The cylinder 9, may be locked to this frame against rotation, or it may be locked to one of its wheels to compel rotation. It is always locked to one or the other of these parts. The mechanism for locking the cylinder is best seen in Figs. 14 to 17, inclusive.

9g is a cap-plate on the cylinder and 9h is a box'plate secured to plate 9S. Fig. 16 shows the inner face of plate 9h, and Fig. 17 its outer face. Figs. 14to15a show the wheel 9c, adjacent to the box-plate 9h. Fig. 14 shows the outer face, and Fig. 15 the inner face of said wheel.

In the box-plate 9h (Fig. 16), is mounted a double bolt, 30, the tip, 3l, of which isadapted to enter a socket, 32 (see Fig. 4a), in the cylinder frame, while at its'other end it has a laterally projecting stud, 33, which projects through a slot in the plate 9h, and may engage a keeper-notch, 46, in a plate, 47, on the inner face of the wheel 9, (Figs. 15 and 15a.) A spring, 34, bears on the stud 33, and tends to withdraw the tip 3l,from its socket 32. When the bolt 30, is moved to lock the cylinder to its frame, the bolt is held fast by a toggle of ICO IIO

two links, 35 and 36, having a slotted con'- A nection at the knuckle.

broken outwardly by a curved cam-bar,

. on the wheel 9c.

37, pivoted on the plate and its curved face bearing on a stud, 38, on the toggle-link 35.

The cam-bar is upheld by a spring, 39, and it is actuated by the following described mechanism: An arm, 40, is pivoted to the cam-bar 37, and said arm has a stud,41, which projects through a slot in plate 9h, toward the wheel 9c. In this wheel is mounted a rockshaft, 42, on the outer end of which is a crank, 44, and on its inner end is fixed an arm, 43. Seen in Fig. 15. As the wheel'rolls on its track the crank 44, strikes a cam, 45 (see Figs, 4 and 4b), the shaft 42, is rocked thereby and the arm 43, strikes the stud 41, and through it, actuates the toggle and sets free the bolt 30. Then the spring shoots the bolt back and the stud 33, enters the notch, 46, and locks the cylinder to the wheel 9C. To shift the bolt 30, in the opposite direction so as to lock the cylinder to its frame and unlock it from wheel 9C, the following described mechanism is providedl Mounted on the inner face of wheel 9, is a slide, 48, the outer end of which plays in the keeper-plate, 47, back of notch 46, and has a shoulder, 49 (Fig. 15a). On the slide 48, is a stud, 50, which plays in a slot in wheel 9, and on the outer face of said wheel is pivoted an elbow-lever, 51, one arm of which is coupled tothe stud 50 (Fig. 15), and the othercavrries a roller, 52. This roller, stri-kes a ca m, 53, on the frame when the cylinder has made a complete rotation forward .and thus drives the slide 48, inward-radially The shoulder 49, on the slide takes behind the stud 33, and shifts the bolt 30, until its tip 31, enters the socket on the frame, the toggle then straightening out and holding the bolt 30, in this position as before described. Adjacent to the tip 3l, of the bolt is a notch, 31h, in the edge of the plate .on the cylinder, and on the bar 9f,isl

mounted a spring pawl, 31|, to engage the notch in the cylinder andprevent any backward rotation of the cylinder beyond this point. Fig. 4 shows this pawl engaged.

The devices for opening and closing the cylinder gripper are at that end of the cylinder where wheel 9m, is situated. The gripper and its operative mechanism are best illustrated in Figs. 12, 13, 19, 20, 21 and 22. In Fig. 2O the mechanism within the middle part of the cylinder is seen as if viewed from the left in Fig. 19.

The cylinder 9, is hollow and has a ilattened and recessed face wherein is mounted a rockshaft, 54, carrying the spaced gripper teeth, 55, which close on seats, 56, at the margin of the recess. The gripper is held. closed by spring pressure through mechanism seen in Figs. 19 and 20. On the gripper-shaft 54, is a slotted arm, 57, and on a bar, 5S, mounted in the end-plates of the cylinder, is arocking arm, 59, coupled bya slot and stud, 60, to the arm 57. On thel bar. 58, is a coil spring, 61,

. attached at its respective ends to the bar and The knuckle is i oted an elbow-lever, 63, the shorter arm of which is couplcd to the crank 62, bya link, 64. On the longer arm of lever 63, is aroller, When this roller is pressed inward radially by a cam 89 on the frame, the gripper is opened. This lever-and-crank device effects of shaft 54, and on the said cap-plate is piv-" the opening of the gripper by an easy move- Y ment.

When the cylinder 9, has rolled forward -until the gripper is at the delivery point, as

seen in dotted lines in Fig. 1, the gripper is opened by the roller 65, impinging on a cam; 89, placed in theproper position on vsomey part of the frame;and when the cylinder has completed its rotation said roller 65,in1pinges on a shifting-cam, 66. Seen best in Figs. land 5. This cam is first elevated so as to act on the gripper mechanism, and then loweredy so as not to open the gripper when the cylinder 9, moves back. The cam 66, is carried by a swinging arm, 67, and is upheld by a wedge, 28a, on the link 28. As the suction-roller 16, moves back this wedge moves under cam 66, and elevates it into operative position, it being held in this position by a toggle composed of links, 68 and 69, the latter pivoted at 1X. When the toggle is straightened, a prolongatio-n, 68X, on link 68, impinges on a stud, 69a, on link 69. The straightening of the toggle throws an arm, 69X, on link 69, in the path of a stud, 15a (Fig.,1), in the crank-disk 15, and as this disk rotates the stud strikes said arm and breaks the knuckle of the toggle, letting the cam 66, and its arm fall by gravity as far as the wedge 28a, will permit. f

It may be said here that the cam 45 (Figs. 4a and 4b), will be depressed bythe crank 44, when the cylinder passes said cam in moving back and the cam does not act then to unlock the cylinder. It acts at the beginning of the forward movement of the cylinder.

The Sheet Guard.

To prevent the blank sheet from being drawn over the inked faces of the type, a

IOO

VIto

sheet-guard is employed, which is best seen in Figs. 4, 12, 13a and 13b.

On the bar or rod, 9i, are rocking arms, 9j, which are connected at their ends by a transverse rod, 9k. which hold the arms normally as seen in Fig. 13a.A To the rod 9k, are secured` tapes, 9, which pass over a roller, Se, at the front edge of the type-bed 8, and have attached to their ends (Fig. 4) light weights, 9, to keep them strained. When the cylinder nears the forward end of its travel, the rod 9k, encounters On the bar 9f, are springs, 9m,

i 55eme a properly situated curved deflector, 8, onthe frame and is depressed or swung down out of the way of the gripper and the sheet to be seized, and when the cylinder moves back, this rod rises again and takes under the sheet, it and the tapes supporting the sheet slightly above the form.

Device to Prevent the Cylinder from Roll/ng Over the Type when, no Sheet is Interpcsed.

This device, which is best illustrated in Figs. 13 to 20, inclusive, prevents the unlocking of the cylinder from its frame at the beginning of its forward movement unless a sheet is held in the cylinder gripper.

7l is a pin (Figs. 1S, 19 and 20) which plays through a hole in a tooth or jaw of the gripper and its seat 56. This pin is coupled to an arm, 72, fixed on a rock-shaft, 73, mounted in the end-plates of the cylinder. Figs. 16 and 18fL show the end plate, 9g, next to plate The shaft 73,projects through plate 9g,

j and has a crank, 74, the pin, 74a, of which engages a slot in a branch, 40@L (see Fig. 16), on the arm 40, when the parts are assembled.

It will be understood that the arm 40,-of which the slotted branch 40a forms a substantially integral part-is pivoted loosely to the bar 37, and the spring 39 does not affect its operation.

When a sheet of paper is inserted in the open gripper and the teeth close thereon, the pin 71, will not be protruded through the gripper tooth by reason of the interposed sheet, and hence, through the medium of the arm 72, rock-shaft 73, crank 74, pin 74u, and slotted branch 40a,the stud 4l, will be held in the path of the head on the arm 43, and consequently the unlocking of the cylinder will be effected; but it' there is no sheet in the gripper, the pin 7l, will protrude into or through the hole in the gripper-jaw, and this will allow the stud 4l, to move laterally out of the path of the head on arm 43, which will not then impinge on said stud and the unlocking of the cylinder will not be effected. -In order to withdraw the pin 71,when the gripper opens to receive a sheet,the construction seen in Figs. 19 and 2O is employed. On arm 72, is a branch forming a cam, 72a, which stands in such relation to the slotted arm 57, on the grip- Apershaft that the pin 71, may move freely when the gripper is closed, as in Fig. 19, but when it is opened,arm 57, strikes cam 72a, and draws the back pin 71.

It will be noted that when the sheet is being seized by the grippers the pin 71 will be in an upright position, its tip downward, and that it tends to fall by gravity, thus acting to rock the shaft 73, and swing the arm 40.

It may be said here that the cylinder will have an ordinary covering, 75 (Fig. 19), secured to the cylinder at 75X, and drawn smooth and tight by a rotative straining bar 76.

Delivery Gripper for the Sheets.

This device is best illustrated in Figs. 1, 2, 3, 4, 8,9,10 and 11.

y suction-roller 16.

77 is a rock-shaft in the frame (Figs. 2 and 4), on which is an arm 77X, and this arm is coupled to a cross-bar, 77C, in the frame by a pair of links, 77", coupled together at 77. At 77a is a stud which projects laterally from the pivot-point into a cam-groove in the face of the cam-disk, 78, on the cam-shaft 6. Rotation of shaft 6 rocks the shaft 77. On the outer ends of shaft 67, are long arms, 79, which project above the delivery platform 7X, and are tied together by a rod, 79X.

To the arm 79, as before stated, are coupled by links, 80, the arms 17 and 17, of the feed At their upper ends the arms 79, carry the delivery grippers. Seen in detail in Figs. 8 to 1l. Two brackets, Si, are hung on rod 79X, beside the arms 79, and these brackets are tied together by a bar, 83. On this bar are xed at properintervals the xed, lower jaws, 84, of the grippers, each of which has also a movable upper jaw, 85, fixed on a rock-shaft, 82, mounted in the brackets 8l. A spring, 86, about the shaft 82, near a bracket Sl (Fig. 9), serves to close the grippers which, when opened, are held open by a toggle, as seen in Fig. 8. This toggle comprises links, 87 and 87X, pivotally connected, respectively, to a bracket 8l, and to a lever, 88, on the shaft 82. At the knuckle of the toggle a stud, 87a, in one link engages a slot 87h, in the other. On the link 87, is a cam or block, 87, at its lower edge, and thelower end of arm 88, carries a roller, 88X. When the delivery grippers nieve over toward the cylinder 9, to seize the edge of the printed sheet, the lower, iixed jaws 84, of the delivery grippers enter between the seats 56, and take under the edge of the sheet While the upper jaws 85, pass above or over the edge of the sheet. At this moment the cylinder gripper is opened by the impingement of the roller 65, on the cam, 89, on the frame, and simultaneously the cam or block 870, on the link 87,i1npinges on a cam, 90, on the machine frame which breaks the toggle upward and allows the spring 86, to instantly close the jaws of the delivery grippers on the sheet. This position of the delivery grippers isindicated in dotted lines in Fig. 1. The delivery grippers now move forward, carrying the printed sheet and moving with it at the same speed that the cylinder rolls forward and frees it, thus keeping the sheet slightly strained until itis freefrom the cylinder, when it is brought over the delivery platform 7X. The roller 88X, on the lever S8, now rides over a cam, 91, fixed on the frame, and this has the effect to rock the shaft 82, open the grippers and set the retaining toggle as represented in Fig. 8.

At the front margin of the platform 7X, are upright pins 7, and the delivery gripper jaws play between these pins which serve to even the front edges of the sheets. To prevent the sheets from dying off the platform when being rapidly delivered, guards, 92, are employed.V These are mounted on the frame. In order to avoid injury to the delivery grippers ICO IIO

c by contact with the non-rotating cylinder, in The type-bed is represented herein as incase the latter should be moving forward withclined but this is not essential to the invenout a sheet, the printing cylinder' 9, is protion. It might be horizontal, or be inclined 70 vided at one end with a buffet-plate, 93, and at a less angle than is shown.

the swinging frame which carries the deliv- Other means than the springs 121 may also ery grippers has a curved cam, 94 (Figs. 8 to be used to hold the cylinder down to the type 11), which impinges on this plate 98, under in its movements. Y the conditions named and throws upthe grip- It will be noted that in this machine the 75 pers by causing the brackets 8l, to swing on impression cylinder is normally non-rotative,

ro the rod 79X. In order to cushion the blow the only being rotated during a part of its forcam 94, is pivoted on the rod 83, and is held ward movement, or during theperiod of printagainst rotation about the rod byaspring, 95, ing. At the point in its forward movement on the adjacent bracket 8l, which bears on a when the gripper on the cylinder reaches the 8o stud, 95, Von the cam. This spring will yield under side thereof and opens, the rotation of 15'` if the pressure is too great. the cylinder ceases and it remains non-rotative during the remainder of its forward The Suction-Rolle?. movement n y Undersome conditions the plain,perforated Having thus described my invention, I 8 5 suction-roller 16, seen in Fig. 6, will serve, but claimzo in order that this roller shall work well the 1. A printing machine having a normally sheet being fed should be wide enough to non-rotativeimpression cylinderwhich moves cover all of the perforations, 16a, in the series to and fro over the type on the type-bed, au-

- or row.f To enable the machine to print nartomatic means for unlocking the cylinder at 9o row sheets which will not cover the end perthe beginning of its forward movement, auto- 2 5 forations of the series the construction of Fig. matic means for compelling the cylinder to 23 may be employed. Within the roller 16, rotate during its forward printing movement, is tted a tube, 16X,`which is capable of being automatic means for locking the cylinder afrotated axially within the roller by inserting ter the completion of its forward printing 95 a pin in one of a series of holes, 16XX, in a movement, whereby it is prevented from ro- 3o iiange on the tube. In this tube are several tating during the latter part of its forward rows of holes either of which may be brought movement, and automatic means for operatto register with the row of holes in the roller; ing the cylinder gripper'at the proper times,

but each successive row of holes in the tube as set forth. roo 16X, is abbreviated by having one less hole at 2. A printing machine having a normally its end and in consequence by moving the non-rotative impression cylinder, automatic inner tube far enough for the second row of means for moving said cylinder to and fro holes therein to register with those in the over the type on the Atype-bed, automatic roller 16, the two end-holes in the row in the means for compelling said cylinder to rotate :o5 roller willbe closed or stopped out. Similarly, during the first part of its forward movement,

4o by turning the tube till the third series or automatic means for arresting the rotation of row of holes therein is brought into play, two ,the cylinder before the completion of its forholes are stopped at each end of the row in ward movement, automatic mechanism for the roller 16, and so on. The tube 16X, may operating the cylinder gripper at the proper 1 ro be rotated by inserting a pin in one of a series times, automatic mechanism for feeding the of holes 16, in a flange on the tube. sheets to the cylinder gripper, and automatic In Figs. 25, 26 and 27 another form of this mechanism for delivering the printed sheets,

device is shown wherein the roller 16, has a as set forth. flange, 96, in which ismounted a hinged de- 3. In a printing machine, the combination 115 tent, 97, and the tube 16", has a similar flange, with a type-bed, an impression cylinder, a

5o 98, having in it a series of notches, 99, to re- Aframe in which said cylinder is carried, autoceive the detent 97, and thus lock the tube matic means for moving said frame and cylina'nd roller together in any position set. These der over the type on the type-bed, automatic notches are so placed that when the tube and means for compelling said cylinder to rotate izo roller are locked together, some one of the during the first part of its forward movement series of holes in the tube will register with and automatic means for locking said cylinder the series of holes in the roller. against rotation during the remainder of its The impression may be regulated in any forward movement, of a sheet-guard con-` manner desired. In Fig. 24, I have shown nected to and moving'with the frame carry- [z5 means for raising and lowering the tracks on ing the cylinder, whereby the sheetis kept out 6o which the cylinder wheels roll and this serves of contact with the'type while it is being to regulate the impression. The track has an placed, and a feeder which supplies sheets inclined lower surface which matches an into the cylinder, as set forth. cline on the bed 8a, and a screw, 100, serves 4. In a printing machine, the combination 13o to`move the track endwise for adjustment. with the type-bed, the vibrating frame which The cams on the machine will have such a carries the impression cylinder to and fro form and be so set as `to properly eect and over the type-bed, and the said impression time the movements of the parts. cylinder, of the automatic locking and unlocking mechanism, and the rack and pinion, which control the rotation of the cylinder, a gripper on the cylinder for seizing the sheets, and a controller, carried by the said cylinder which prevents theunlocking of the cylinder when no sheet is seized, substantially as set forth.

5. In a printing machine, the combination with an impression cylinder having a gripper, of a feeder to feed the sheets to said gripper, comprising a vibrating suction-roller, its air-exhauster, a vibrating segregating blade moving in unison with the roller and adapted to take under the top sheet when the latter is lifted by the roller, mechanism for operating said roller, air-exhausterand blade, and means for depressing said blade when in its advanced position, substantially as and for the purposes set forth.

6. In a printing-machine, the combination with the stationary type-bed, the vibrating impression cylinder provided with a gripper, and the frame about said cylinder, of a ieXible sheetguard connected to said frame at one end and a take-up for taking up said sheetgnard when the cylinder makes its forward, printing movement, substantially as set forth.

7. In a printing machine, the combinationk with the type-bed, the rack 8b, the rotatable impression cylinder, its frame, and its wheels, of means for moving said cylinder to and fro, a lock, substantially as described which locks the cylinder to its frame when its parts are in one position, and locks the cylinder to its wheels when its parts are in their other position, and means on the machine frame for operating said lock automatically, as set forth.

8. In a printing machine, the combination4 with a vibrating and intermittently rotating` impression cylinder, provided with a gripper, and means for operating said cylinder and gripper, of a vibrating delivery-gripper for the printed sheets, said delivery-gripper comprising the iixed jaws 84, the rock-shaft 82, the

movable jaws 85, fixed on said shaft, the

spring 86, for closing the jaws of the gripper, the lever 88, on the shaft 82, the bracket 81, and the toggle connecting one arm of said le- 'ver 88 with the bracket, and means for operatingl said delivery-gripper, substantially as set forth. l

9. In a printing machine, the combination with the typebed, the rackthereon, the tracks on which lthe impression cylinder rolls, the said cylinder, its wheels, the frame which carries the cylinder, and means for moving the cylinder to and fro overl the type-bed, of the double-acting lock which locks the cylinder to its frame when its parts arein one position and to its wheels when its parts are in their other position, said lock comprising the diametrically arranged bolt 30, on the cylinder, said bolt having a tip 3l at one end to engage a socket 32 in the frame and a stud 33 at the other end to lock the cylinder to its wheels, the toggle for operating the bolt, coupled at one end to the bolt and at the other end to the cylinder, and the spring 34C, arranged to shoot the bolt when freed by the breaking of the toggle knuckle, and automatic means for operating said lock, substantially as set forth.

In witness whereof I have hereunto signed my name in the presence of two subscribing witnesses.

Y GEORGE R. CLARKE. lVitnesses:

HENRY CONNETT, JAS. KING DUFFY.

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