US868684A - Machine for printing on boards. - Google Patents

Description

6 SHEETSSKEET 1.

I nventor Attorney PATENTBD 002.212, 190.7.

H. w. MORGAN. MACHINE: FOR PRINTING on BOARDS. APPLICATION TILED JAE 8| 1903- Nb'f868,684.

Witnesses- 7 O 9 1 2 2 v G 0 T a... m D I l T R M n h B N O A G N R I 0 M M T. R W P w H E N I H G A M 4 8 no", 8 6 8 N APPLICATION FILED JAN. 8. 1908.

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C. A w n m n n W m m E n P m n R a u z u 1 PATENTED OCT. 22, 190?.

H.'W. MORGAN. 'M'AGHINE POR'PRINTING 0N BOARDS.

APPLICATION FILED JAN. 8. 1903.

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PATENTED OCT. 22; 1907.

H. W. MORGAN. MACHINE FOR PRINTING ON BOARDS.

APPLICATION FILED JAN. 8. 1903.

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PATENTED OCT. 22, 1907. H. W. MORGAN.

MAGHINB FOR PRINTING ON BOARDS.

APPLICATION FILED JAN. 8- 1903.

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nventor.

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HENItY W. MORGAN, OF ROCHESTER, NEW YORK.

MACHINE FOR PRINTING ON BOARDS.

Specification of Letters Patent.

Patented Oct; 22 1907.

Application filed January 8, 1903 Serial No. 138,200.

To all whom it may concern:

Be it known that I, HENRY W. MORGAN, of Rochester, in the county of Monroe and State of New York, have invented certain new and useful Improvements in Machines for Printing on Boards; and I do .hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming a part of this specification, and to the reference numerals marked thereon.

My present invention relates to multi-color printing machines and particularly to those adapted forprinting on boards which embody generally a bed or support over which the boards are moved beneath the cylinders, containing the type plates, by means of a relatively movable feeding mechanism and my invention has for its object to provide suitable driving connections with said cylinders whereby they may be adjusted relatively to the bed to accommodate boards of different thicknesses and whereby they may also yield independently without affecting the registry of the type plates.

To these and other ends the invention consists in certain improvements and combinations of parts all as will be hereinafter fully described, the novel features-being pointed out in the claims at the end of the specification.

In the drawings: Figure 1 is a side elevation of a printing machine constructed in accordance with my invention. Fig. 2 is a top plan view thereof. Fig. 3 is an enlarged side elevation showing the driving connections arranged at the forward end of the machine parts thereof being broken away to better illustrate the construction. Fig. 4 is a sectional view on the line 4 4 of Fig. 3. Fig. 5 is a sectional view on the line 5 5 of Fig. 4 showing an enlarged view of one end of the printing cylinders. Fig. 6 isa cross sectional view through the bed of the machine and taken on the line 6 6 of Fig. 5. Fig. 7 is a sectional view on the line 7 7 of Fig. 5. Fig. 8 is a detail sectional view through one of the printing cylinders.

- Fig. 9 is a detail sectional view of the operating mechanism for the ink feeding roller. Fig. 10 is a detail perspective view of a cam member.

Similar reference numerals in the several figures indicate similar parts.

A printing machine constructed in accordance with my invention consists of the frame composed of side portions 1 between which extends the horizontal bed 2 provided at its sides with the open ways or channels in which travel conveyer chains 3. The chains extend over suitable sprocket wheels 4 and 5 the latter of which are arranged upon a shaft, at the outer end of the bed, carried in adjustable boxes 6 whereby the chains may be adjusted to the desired tension. Extending between the conveyers and arranged suitable distances apart are slats or feeding bars 7 which mo ve longitudinally of the bed and are adapted to engage the lowermost board of a pile, indicated by 8, and advance it beneath the printing cylinders. secure the boards in proper position upon the bed they are arranged between suitable vertically extending plates 9 extending in rear of a fence 10. The latter is vertically adjustable relatively to the bed by means of screws 11 engaging the side brackets 12 which are slidably mounted at the edges of the bed 2 and are provided upon their lower overhanging edges with racks 13 with which engage pinions 14, upon a shaft 15, .provided at its outer end with an operating wheeler handle 16, whereby the fence may be operated longitudinally relatively to the base for purposes to be further described. At the end of the fence 10 are provided clamping screws 17 whereby it may be rigidly secured in position and also with heads 18 in which are revolubly mounted adjusting screws 19, each of which pass through threaded bosses 20 upon the side plates 9 so that the latter may be adjusted relatively to each other to position the pile of boards upon the bed 2. At the forward end of the machine are arranged th printing cylinders upon which are arranged the type plates and cooperating therewith is the ink feeding and distributing mechanism. In the present instance I have shown two cylinders indicated by A and B, revolubly mounted upon shafts 21 and 22 respectively and journaled in frame pieces 23 and 24. These pieces constitute supplemental frames and they are supported at each side of the frame by guides 25 whereby they may be adjusted vertically relatively to the bed 2 to permit their proper operation upon boards of various thicknesses. This adjustment is accomplished by means of screws 26 revolubly mounted in lugs or extensions 27 projecting from the sides 1 of the frame and engaging tie plates 28 attached to the frames 23 and 24 by means of parallel tie rods 29. .These rods extend through the plates and are provided with shoulders 30 which engage the upper surfaces of the latter to support the weight of the frames and printing cylinders and surrounding the projecting ends of rods arespring members, in the form of rubber buffers, 31 which are secured in position by means of nuts 32, on the ends of the rods, whereby the frames are permitted to yield upwardly, to prevent injury to the parts in case a board of greater thickness than that for which the machine was originally set happens to be fed beneath the cylinders. The screws 26 for adjusting each cylinder are connected for simultaneous operation by means of beveled pinions 33 arranged upon the screws and cooperating with similar pinions upon small shafts 34 having at their outer ends hand wheels 35.

H The shafts or driven members 21 and 22 upon'which the printing cylinders are mounted are provided with beveled gears 36 meshing with pinions 37 having the In order to end 38 journaled in arms or extensions 39 on the frames 24, said pinions being prevented from disengagement with said arms by means of collars 40 which engage the lower side thereof. Extending through each of the pinions 37 are shafts 41 which constitute driving members which are attached to the pinions so as to form a movable or sliding connection by means of a key or spline 42. At their lower ends these shafts are supported in bearing boxes 43 on the frame and secured to the shafts are beveled gears 44 which mesh with and are revolved by similar gears 45. These latter are supported upon shafts 46 and for convenience they are formed integrally with the gear wheels 47 engaging a gear 48 mounted upon a short stud shaft 49 and cooperating therewith is a driving gear 50 mounted upon the driving shaft 51 as shown particularly in Figs. 3 and 6.

The printing cylinders A and B are alike in construction and a description of one will suffice for both. Provided at equal distances around the faces of the cylinder are longitudinally extending slots or channels 52 in which operate clamping dogs 53, having the inner offset ends extending at one side of the slot and threaded to receive revoluble adjusting screws 54 the outer ends of which extend to the ends of the cylinder where they may be conveniently operated by means of a suitable wrench to operate the (logs into position to engage the forms or printing plates a and b as shown in Figs. 5, 7 and 8. In order that the printing forms may be positioned upon the cylinders so that the impression will be printed upon the board in the desired position, I arrange a suitable scale upon the cylinders and I also provide means for adjusting the latter upon their respective shafts so that whatever the position of the latter may be the printing forms will be rotated relatively to the movement of the feeding bar or slat 7 of the conveyer. Extending longitudinally of the bed 2 are suitable lines or index marks 55 and encircling the cylinders are similar lines as shown particularly in Fig. 2, said lines upon the two parts assist the operator in positioning the printing plates longitudinally upon the cylinders, and the boards upon the bed 2, thereby causing the latter to be ar ranged in accurate alinemeut with the printing forms. Extending longitudinally upon the faces of the cylinders are index lines 56, spaced equi-distance and for convenience are numbered consecutively beginning with zero which index mark, when the parts of the machine are operated under normal conditions, registers with the forward or advancing edge of each of the feeding bars 7, said bars being normally arranged upon the conveyor chains a distance apart equal to the circumference of the cylinders. However as it is frequently desirable to print upon short or narrow boards the feeding bars may be arranged closer together as shown in Fig. 5, in which two of them are shown arranged a distance equal to one-half of the circumference of the cylinders. This arrangement not only permits two or more plates to be arranged upon the cylinders but, if desired, different plates may be secured upon the two cylinders enabling different imprints to be made upon successive boards as they pass through a machine, as for instance, the boards used upon opposite ends of a box.

To facilitate adjusting the clamping plates upon a bers.

cylinder, I provide a clamping mechanism be it and itsoperating shaft whereby-the,cylindersrrfay be rotated independently thereof when desired. This object may be accomplished in a number of ways but the means which I have shown for accomplishing this purpose are illustrated in detail in Figs. 4 and 7. At one end of the cylinder I provide a recess formed by an internal drum 57 having at its inner end a rim or flange 58. At the inner end of the recess is a disk or plate 59, rigidly secured to the driving shaft and provided with a recess or aperture to with which cooperates a locking pin 61 carried upon the cylinder, said pin and disk forming cooperating interlocking mem- In order that the pin may be adjusted upon the cylinder so that the latter may be moved relatively to the aperture in the disk or plate 59 I support it independently of said cylinder and provide devices for clamping the pin thereon. Mounted upon the driving shaft is a sleeve provided with an inner disk 62, engaging the rim or flange 58, and also having the outer disk or plate (53 which is located in line with the end of the cylinder and lies within an annular plate or flange 64 rigidly secured to the cylinder by bolts (55. The outer flange is separated from a portion of its sleeve by means of a narrow segmental slit or aperture (56, as shown in Fig. 5, so that a portion of said plate may be sprung or moved relatively to the disk (32 to cause its frictional engagement with the inner edge of the overhanging flange 64. For this purpose I provide a screw 67 the inner end of which engages the disk (32 causing the two plates to be separated and moved into engagement with the opposing stops formed by the overhanging rim 58 and the edge of the plate (34. The pin (5], before referred to, is centered in apertures in the disks 62 and 63 and at its outer end it is provided with a shoul der against which engages the end of a leaf spring (38. Surrounding the pin, as shown in Fig. 4, is a sleeve (59 which is held against rotation by means of a curved foot 70 Fig. 10 which engages aporlion of the sleeve, between the before mentioned disks, and upon its outer edge the sleeve is provided with cam surfaces 7l with which engages the ends of a transversely extending pin or stud 72 arranged on the pin til. The outer end of the pin (3] is adapted to receive a wrench so that it may be easily rotated, the action of the surfaces 71 of the cam causing the pin to be retracted from'engagement with the recess or aperture 60, and the rotary movement of the pin is limited by shoulders 73 arranged between the cam surfaces.

It will be noticed that the shafts 46 are arranged directly below the shafts 21 and 22 of the printing cylinders and arranged thereon are pressing rollers 74 which project through the bed 2 and engage the lower side of the board to advance it dining the printing operation, the shafts 46 are for this reason mounted in adjustable bearings 75 which may be moved upwardly by means of adjusting screws 76, as shown in Figs. 3 and 4, and upon one of the shafts I also arrange the sprocket wheels 4, thereby causing the conveyor to be positively operated and its movement governed in relation to the printing cylinders. Located between the printing cylinders are screws 77, arranged above the bed 2, and provided with the heads or blocks 78 carrying the spring pressing fingers 79 which are adapted to engage the upper surface of a board, outside of the lines of printing, to hold it firmly on the bed while it is being advanced beneath the succeeding printing cylinder. The screws 77 are mounted at their ends in blocks 80 which may be vertically adjustable by means of screws 81.

The ink fountain and distributing rollers are arranged above each of the cylinders and are preferably supported between the frames 23 and 24. The fountain 82 may be of the usual or any preferred construction having at its forward end the feeding roller 83, provided with a ratchet wheel S-f. adapted to be operated by the pawl 85, pivotally mounted upon an oscillatory lever 86. The latter is operated by means of a connecting rod or pitman 87 which is reciprocated by means of a cam 88 on the cylinder driving shaft as shown particularly in Fig. 5. The upper end of said rod passes loosely through theend of the lever 86 and is provided with adjusting screws 89, whereby the throw of said lever may be regulated, and the pawl 85 is normally held in engagement with the ratchet wheel 84 by means of a spring 90, attached thereto in such a manner that it operates to hold the pawl either in or out of engagement with the ratchet wheel, as shown in Fig. 9. The distributing rollers in the present instance, embody the large or main roller 91 to which the ink is applied by a rotary and'longit-udinal movable mixing roller 92, rotating in contact therewith and also engaging the receiving roller 93. The ink is transferred from the main roller 91- to the type plates or forms a and b by means of the rollers 94 which latter, as well as the rollers 92 and 93 are operated by frictional contact with the main roller revolved by means of a gear wheel 95, meshing with the pinion 96 attached thereto and also meshing with the gear wheel 97 on the cylinder driving shaft, as shown in the sectional view in Fig. 4. The ink is transferred from the feeding roller 83 to the receiving roller 93 by means of the transfer roller 98, supported in the upper slotted ends of a rocker frame 99 pivoted upon a shaft 100 and oscillated by means of a downwardly extending arm 101 having at its end a roller riding upon a cam 102, attached to the cylinder driving shaft. whereby as the latter operates the transfer roller will be caused to alternately engage the feeding roller 83 and the receiving roller 93. In order to provide means of adjustment for the transfer roller I loosely pivot the arm 101. on the shaft 100, and I provide on said frame an adjusting screw 103 which engages a finger or a projection 104, on the frame 99, and which is held in contact therewith by the action of a coil spring 105 operating to oscillate-the frame in one direction when the arm is released by the cam 102. The longitudinal movement of the mixing roller is accomplished by means of a lever arm 106, pivoted to the frame 21 and provided with a small bearing roller 107, riding upon a cam 108, formed upon the hub of the beveled gear 36. The rotation of the latter .causes the upper end of the arm to move the roller to the position shown in Fig. 4 against the tension of a coil spring 109 which returns the roller to its normal position when it is released, as will be understood. The mixing and receving rollers and the rollers 94 are formed of the usual soft printers roller composition and in order to prevent them from becoming flattened or getting out of shape when they are not. in operation I provide means for supporting them independently out of enwhen they are all held out of engagement.

gagement. The rollers 92 arejourng fl Q gs; 110, located in vertically extending slotslll, arranged" in the frame pieces 23 and 24 and the rollers 94 are supported in journal boxes 112 operating in similar open slots 113 in said frame pieces. Extending between the frames 23 and 24 is a rocker shaft 114 and at the ends thereof are levers 115 and pivoted at their outer ends are links 116 cooperating with the journal boxes.

112. A link 117 also attached to the arm 115 is provided with a shoulder 118 adapted to engage the shaft of the roller 92 and also having the bifurcated end engaging the shaft of the roller 93 which serves to support the link in an upright position. Pivoted upon the frame 23 is an operating handle 119 havinga shoulder or projection thereon engaging the lower side of one of the arms 115 to elevate the latter when the handle is moved and cause the links to operate their respective rollers to the positions shown in dotted lines in F ig. 3 This is an advantageous arrangement as the rollers may be moved to the inoperative position if it is desirable to discontinue the feeding -of ink for any reason and the rollers also being freely revoluble may be easily cleaned without removingithem from the machine.

The operation of the machine will be readily understood. The printing cylinders are first disengaged from their respective operating shafts by rotating the pin or interlocking member 61 so that it is retracted from engagement with the aperture or depression therein. The operator then revolves the cylinder until the zero index mark or line is accessible. This index indicates the portion of the cylinder which registers with the rear end of a board and the operator arranges the type plate on the cylinder relatively to this line securing it by means of the (logs or clamping pieces 53. If the pin 61 is now rotated to its normal position it will be released from the cam surface on the sleeve 69 and its forward end held in engagement with the face of the plate 59 by the spring (38 until the pin registers with the aperture or recess 60 securing the parts in their normal position. When two or more cylinders are employed in the printing operation, as for instance in multi-color work, it is necessary to adjust one cylinder relatively to the other which is accomplished by providing 'the pin 61 upon a separate support and adjustably securing the support upon the cylinder by loosening the screws 67, allowing the plates 62 and 63 to be disengaged from the rims or flanges 58 and 64 and the cylinder may be rotated independently of the locking member or pin 61 so that it may be shifted or adjusted until the type plates on the two cylinders are in the desired relative position. In order to designate when the cylinder and the locking pin are in their normal position, I provide registering or cooperating index marks 0 upon the faces of the rim 64 and the flange 63 as shown in Figs. 1 and 5. After the printing plates have been arranged upon the cylinders they are adjusted relatively to the bed by means of screws 26 so that the machine may be employed to operate either upon thick or thin stock or material and to assist the operator in this adjustment there is provided on the frame pieces 23 scale marks (I. The boards are positioned upon the bed by means of plates 9 which are capable of lateral adjustment and thefence 10 which may be adjusted vertically so that only sufiicient room is allowed between it and the bed for the passage of a single board ,and arranged in front of the fence is a brush or wiper e which will remove any dust from the surface of the board before the printing operation. These parts are also adjustable longitudinally on the main frame as before described to enable access to the printing cylinder B.

I claim as my invention,

1. In a printingmachine, the combination with a frame having a bed thereon. adjustable supplemental frames and cylinders mounted on the latter having gears thereon, brackets on the frame and pinions journaled therein and meshing with the gears, of shafts mounted on the main frame, movable driving connections between the shafts and piuions. pressing rolls beneath the cylinders and driving connections between said rolls and shafts.

2. ln a printing machine. the combination with a main frame. a supplemental frame mounted in guides thereon and a plate. of means for adjusting the plate. a tie red attached to the supplemental frame provided with a shoulder engaging the plate to limit the movement of the frame in one direction and yielding connections between the rod and plate operating when the shoulder on the former is disengaged from the latter.

It. In a printing machine, the combination with a main frame. a supplemental frame movably mounted thereon, a cylinder on the supplemental frame and a plate, of tie rods connecting the plate and frame and devices located be tween said rods for adjusting the plate to move the cy1 inder relatively to the main frame.

-l. In a printing machine, the combination with a main frame. a supplemental frame movably mounted thereon, a cylinder on the supplemental frame and a plate, of a tie rod attached to said frame and extending through the plale and provided with a shoulder engaging one side thereof. a spring arranged between the opposite side of the plate and the rod and means on the rod for adjusting the tension of the spring.

In a printing machine, the combination with a main frame. a supplemental frame movably mounted thereon, a plate. and an adjoining screw supported on the main fraine .and engaging the plate, of tie rods attached to the supplemental frame and extending through the plate at opposite sides of the screw. shoulders on the rods engaging one side of the plate to limit the movement of the frame in'one direction and springs afianged between the plate and the rods to allow the frame to yield in the opposite direction 6 In a printing machine, the combination with a frame having a bed and a printing cylinder cooperating there with, of movable brackets guided on the edges of the bed and projecting upwardly therefrom, a fence extending between the brackets and means for adjusting said brackets in a longitudinal direction on the bed to move the fence relatively to the cylinder.

7. In a machine for printing on boards, the combination with a frame having a bed and a printing cylinder cooperating therewith, of a fence arranged above the bed and a brush attached thereto and adjustable relatively to the bed to engage the surface of the board with which the printing cylinder coiiperates.

S. In a printing machine, the combination with a frame and a feeding, device thereon, of a driven shaft, a printing cylinder revolnble thereon having an index cooperating with the feeding device and means for locking the cylinder to the shaft operable only when the index is in its adjusted position relative to said feeding device.

H. In a printing machine, the combination with a frame, a feeding device. thereon and a driven shaft, of a printing cylinder freely revoluble on the shaft and provided with an index cooperating with the feeding device, and interlocking devices adjustably mounted on the cylinder and engaging the shaft to lock the cylinder thereon.

10. In a printing machine, the combination with a frame, a feeding device and a driven shaft, of a cylinder revolubly mounted thereon having an index cooperating with the feeding device, interlocking devices between the cylinder and shaft normally operating to cause said index to register with the feeding device and means for adjusting the cylinder independently of said shaft.

11. In a printing machine, the.combination with a bed, feeding devices thereon, and a plurality of printing cylinders arranged above the bed, of yielding arms movable relatively to the bed and arranged between the cylinders and adapted to engage the face of a work piece to hold it in engagement with the bed as it moves between the cylinders.

HENRY W. MORGAN.

Witnesses WAL'rnn B. PAYNE, G. WILLARD RICH.

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