US1306726A - smith - Google Patents

Description

E. J. SMlTH. PLANOGRAPHIC PRINTING MACHINE.

APPLICATION FILEDJULY 27. I916.

Patented June 17, 1919.

3 SHEETS-SHEET I.

E. I. SMITH.

PLANOGRAPHIC PRINTING MACH! APPLICATION FILED JULY 27, I916.

E. 1. SMITH.

PLANOGRAPHIC PRINTING MACHINE.

APPLICATION man JULY 27, 1916.

Pairented June 17, 1919.

3 SHEETSSHEET 3.

UNITED STA TEN orrron.

ERNEsT JAMES SMITH, or CHICAGO, ILLINOIS, 'AssIGNo To HE GOSS PRINTING rREss COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

PLANOGRAPHIC-PRINIING MACHINE.

. To all whom it may concern:

transfer cylinders which receive the impres-.'

sions from the form cylinders and transfer such impressions to a web passing between the transfer cylinders, each transfer cylinder being adapted to act as the impression cylinder for the other transfer cylinder. It is one of the objects of my invention to provide a new and improved form and arrangement of parts by means of which the transfer cylinders may be moved in opposite .di-

rections away from. each other and out of contact with the form cylinders. It is another object of my invention to provide means whereby at the same time the inking mechanisms may be thrown out of contact with the form cylinders, such action being preferably brought about automatically. It is another object of my invention to provide means of this type adapted to permit the inking mechanisms to be thrown again into contact with the form cylinders or to be thrown still further out of contact with the form cylinders without any change in the position of the transfer cylinders. It is another object of my invention to provide means of this type which shall serve, upon a further movement of the inking mechanisms away from the form cylinders after they have been moved out of contact with the form cylinders, to move the water mechanisms at the same time out of contact with the form cylinders. It is another object of my invention to provide automatically-acting means for throwing. the inking mecha nisms out of operation when the transfer cylinders are moved out of contact with the form cylinders. It is another object of my invention to improve planographic printing machines in sundry details hereinafter pointed out. The preferred means by which I have accomplished my several objects are illustrated in the drawings and are hereinafter specifically described. That which I Specification of Letters Patent. Pgtgntgd June 17, 1919.

Application filed July 27,

1916. Serial No. 111,603.

Fig. 3 is a'diagrammatic view showing thechanged positions of the transfer cylinders and theinking mechanisms as such parts stand after they are moved automatically out of normal position upon the cessation of the operation of the press;

Fig. 4 is a fragmentary diagrammatic view showing the position of certain of the parts as ,they stand when the inking mechanisms have been thrown simultaneously out of contact with the form cylinders upon the cessation of the operation of the press;

Fig. 5 is a fragmentary diagrammatic view showing the position of the parts shown in Fig. 4 when the inking mechanisms and the water mechanisms have been position Which the parts shown would assume when the inking mechanism has been automatically thrown out ofcontact with the form cylinder and has then been thrown manually still further out of contact with the form cylinder, and the automaticallyacting mechanisms have been actuated for returning the transfer cylinders ,to their normal operative position; and

Fig. 8 is a diagrammatic view showing a modification by which the means for controlling the inking mechanism and the water mechanism for one form cylinder are actuated in unison with the means for controlling the inking mechanism and the water mechanism for the other form cylinder.

Referring to Figs. 1 to 7 in which corresponding parts are indicated by the same reference characters,-

1 15 indicates the framework of a printing machine provided with form cylinders 1'6-17 adapted to .carry 'planographic" printing facings of any suitable type. Transfer cylinders 18-19 are movably mounted so as to be movable into and out of contact with each other and into out of contact with the form cylinders 16-17. Each of the cylinders 18-19 is revolubly mounted by means of a shaft 20 which has an eccentric mounting in heads 21 which are revolubly mounted in slide-blocks 22 which are slidably mounted upon the frame 15. Each of the slide-blocks 22 is adjustable relative to a slide-block 23 by means of a screw-threaded pinor bolt 24. The head 21 is adjustable angularly relative to the slide-block 22 by means of adjusting screws 25-26 by an adjustment of which a slight adjustment of the shaft 20 may be effected by reason of the eccentric ,mounting of the shaft 20 relative to the head 21. Y The downward movement of the slide-block 22 is resisted by means of springs 27-28 interposed between suitable portions of the framework 15 and lugs 29 carried by the slide-block 22, the springs being mounted upon rods 30 which are slidable relative to the framework. Each of the slide-blocks 23 is supported by means of a pair of togglearms 31-32, the toggle-arm 32 for the slideblock 23 at each end of each cylinder 18 being fixed upon a shaft 33 whereby they are adapted to move in unison. The arms 32 at each end of the press are connected together by means of an adjustable link 34 whereby the two sets of toggle-arms at each and, of the press are adapted to operate in unison.

Water mechanism is providedfor moistening the planographic printing surfaces of the cylinders 16 and 17, being mounted upon arms 35-36 carried by the frame 15. The water mechanism for each form cylinder comprises a framework 37 pivotally mounted by means of a shaft 38 upon the arms 35-26. Each frame 37 carries a water receptacle 39 in which a roller 40-is revolubly mounted, an oscillating roller 41 being provided for transferring the water from the roller 40 to a second roller 42 from which the water is transferred by rollers 43-44 to the form cylinder. Any suitable means, asdesired, is employed for rotating the fountain roller 40 and for moving the oscillating roller 41 in proper timed relation. By reason of each of the frames 37 being pivotally mounted relative to its arm 35 or 36, the entire water device can be turned about such axis so as to carry the rollers 43-44 out of contact with the form cylinders 16-17.

The inking mechanism for each of the cylinders 16-17 comprises a fountain 45 which a roller 46 is revolubly' mounted, be-

ing fixed upon a shaft 47. The shaft 47 is rotated by means of a bell-crank lever 48 provided with a pawl 49 acting upon a ratchet-wheel 50, the lever 48 being actuated by means of a link 51 reciproca'ted by a driven member 52. An oscillating r0ller53 is swung alternately into contact with the fountain roller 46 and a roller 54 from which the ink so deposited upon the roller 54 is transferred to and spread upon a cyline der 55 by means of a plurality of distributing rollers 56, the cylinder 55 being mounted by means of a shaft 57 framework 15.

The fountain rollers 46 areadapted to be thrown out of action by means of shrouds 58 which are movable into'the path of the pawls 49 for holding the pawls out of contact with the ratchet-wheels 50. The shrouds 58 are adjustable by means of arms 59 relative to pivotally mounted plates 60 which are connected by a series of links 61, 62 and 63 and interposed bell-crank levers 64 and 65 with arms 66 depending from the shafts 33, the arrangement being such that when the shafts 33 are turned in clockwise direction in Fig. 1, as hereinafter described, the-pivotally mounted plates 60 are turned in the direction to move the shrouds 58 into operative position for stopping the operation of the pawls 49.

The means for transferrin the ink from the ink cylinders 55 to the orm cylinders comprises frames 67 pivotally mounted upon the shafts 57 Each of these frames carries a plurality of rollers 68 by which the ink is transferred to the form cylinders, such rollers being movable out of contact with the form cylinders upon the movement of the frames 67 relative to each other in opposite directions about the shaft 57. Means is provided for .moving the frames 67 about the shaft 57 comprising arms 69 carried by said frames havlng operative engagement at their lower ends wlth suitable cam grooves in cams 70-71 revolubly mounted upon the, axis of the cylinders 16-17, respectlvely. The cams 70-71 are provided with gears 72-73 revolubly therewith meshin with pinions 74-75, respectively, by WhICh'Sald cams are adapted to be ing links 76-77 pivotally connected to the .frames 37 and provided with studs or rollers "78 engagin suitable cam. grooves in the said cams 70- .1. The same movement of the cams 7 0-7 1 asthat which throws the rollers 68 out of contact with the cylinders 1-6.-17 serves alsoto throw the water mechanisms out of contact, as will be readily understood.

Means is provided for rotating the cams 7071 automatically for giving the rollers 68 of the inking mechanisms their initial movement out of contact with the cylinders 16-17 upon the downward movement of the cylinders 18-19, as above described; ',This

arms of which are yieldingly held against upward movement by means of springs 87.

Figs. 4150 7 best show the action of the links 8182. In Fig. 4: the pin 84 of the cam 71 is shown as having been drawn; downward by the shoulder 88 of the liilk 82, bringing the shoulder 89 of said link past the horizontally-extending arm of the bellcrank lever 86 permitting the spring} 85 to draw the link 82 toward the right. In this position of the cam the rollers 68of the.

inking mechanism have been. moved'a short distance out of contact with the form' oylinder, but the water mechanism remains still in contact with the form cylinder by reason of a dwell in that portion of the can slot through which the roller 78 has moved during such initial rotation of the cam 71. Fig. 6 shows the link 8-2 in the same position as in Fig. 4, but with the cam 71 rotated inanually in counterclockwise direction so as to bring the rollers 68 of the inking mechanism again into contact with the form cylinder. Fig. 5 shows thecam 71 rotated manually in clockwise direction as compared to the showing in 4 for throwing the rollers 68 farther out of contact with the form cylinder and for throwingthe water mechanism also out of contact with the cylinder: Fig.

7 shows the position of the link 82 when the cam 71 is in the same position as that shown may be thrown out of-conta'ct with'th'e cylinders 16-17 byhand when the links 81-,82 stand in either of their adjusted positions. When the inking mechanism has been thrown out of contact automatically, it may be either thrown farther out of contact y manually-operated means or may be thrown back into contact.

Fig. 8 shows a modified form of construction in which the cams and 71 are connected by a link 90 whereby they are adapted to operate in unison. g

The means for driving the presscomprises a motor 91 connected by means of a suitable chain of gearing with the various driven parts of the press. The toggle arms 31-'32 are operated by an auxiliary motor 92 which is provided with a worm 93 meshing with a worm-gear A roller 95 connected with the toggle-arms 3l32 engages a suitable grooved cam 96 which is adapted to be rotated by connection with the gear 94. The motor 92 is provided with a controller system so arranged that upon the stoppage of the motor 91 the motor 92 is thrown into operation in a direction to rotate the grooved cam 96 in counterclockwise direction in Fig. 1 thereby moving the arms 3132 to the right in said figure and moving the transfer cylinders 18-19 out of contact as above described.- By the rotation of the shafts 33 thus effected the inking rollers are moved out of contact with the form cylinders, and the inking mechanism is thrown out of operation in the manner above described.

Means is provided for automatically throwing the motor 92 into operation for withdrawing the cylinders 1819 from contact with each other and from contact with the form cylinders whenever at any time the web 97 breaks, the roller 98 is adapted to move downward causing an arm 99 to move upward into contact with a pin 100 by which a controller circuit 101 is closed serving to throw the motor 92 into operation. The controller means for the motor 92 is such that the motor can be thrown into operation manually in either direction as' desired independently of the motor 91 and can likewise be thrown out of operation .independently, but is adapted to be automatically thrown into operation upon the stoppage of the motor 91 as above described, this being effected by any suitable means, not shown.

As is well understood by those; familiar with the operation of presses of this type, whenever the operation of the press is stopped, even for a short time, it is desirable to move the inking rollers 68 out of contact with the form cylinders and to move the transfer cylinders out of contact with the form cylinders and out of contact with each other. As will be understood from the description given above, this result is attained automatically whenever the press is brought to a stop. In case the operation of the press is to be stopped only temporarily, it is sometimes desirable that the form cylinders be kept in motion with the inking mechanisms still in operative position with relation thereto so as to keep the designs on the form cylinders in proper condition. This result is attained as above explained by moving the inking mechanisms back into operative position by hand through the medium of the p-inions 7475 following the automatic action upon the inking mechanisms incident to the stoppage of the press, the press being then started up again with the transfer cylinders out of operative position. Inasmuch as the gears by which the form cylinders and the transfer cylinders are operatively connected are maintained in mesh even when the cylinders themselves are moved to the limit of their movement out of contact with each other, the driving of the form cylinders as above set forth results in a corresponding driving of the transfer cylinders, but this is unobjectionable inasmuch as the transfer cylinders are out of contact with the form cylinders. Whenever it is again desired to operate the press for printing purposes after such a temporary stop, the cylinders 181 9 can be brought to operative position through the medium of the motor 92 which may be started manually for this purpose.

That which I claim as my invention, and desire to secure by Letters Patent, is,

1. In a printing machine, the combination of a frame, two form cylinders revolubly mounted on said frame, rigidly-mounted slideways on said frame ad acent to said form cylinders and extending downward therefrom at a slight angle from the vertical, slide-blocks movably mounted in said slideways, two transfer cylinders revolubly mounted on said slide-blocks adapted to rotate in contact with said cylinders and in contact with each other. for printing upon a web passing between the transfer cylinders, and means for moving said slide-blocks along said slideways for moving the transfer cylinders out of contact with said form cylinders and out of contact with each other.

2. In a printing machine, the combination of a frame, two form cylinders revolubly mounted on said frame, rigidly-mounted slideways on said frame extending downward from said form cylinders and diverging slightly from each other, slide-blocks movably mounted in said slideways, two transfer cylinders revolubly mounted on said slide-blocks in adjustable position thereon adapted to rotate in contact with said form cylinders and in contact with each other for printing "upon a web passing between the transfer cylinders, and means for moving said slide-blocks along said slideways for moving the transfer cylinders out of contact with said form cylinders and out of contact with each other.

8. In a printing machine, the combination of a frame, tWo form cylinders revolubly mounted on said frame, rigidly-mountedv inders out of contact with said form cylinders and out of contact with each other.

4. In a printing machine, the combination of a frame, two form cylinders revolubly mounted on said frame, rigidly-mounted slideways on said frame extending downward from said form cylinders and diverging slightly from each other, slide-blocks movably mounted in said slideways, two transfer cylinders revolubly mounted on said slide-blocks in adjustable position thereon adapted to rotate in contact with said form cylinders and in contact with each other for printing upon a web passing between the transfer cylinders, toggle-arms connected with the slide-blocks for each transfer cylinder, and connections between said togglearms for causing said transfer cylinders to be moved simultaneously out of contact with said form cylinders and at the same time out,

of contact with each other. I 5. In a printing machine, the combinatio of a frame, two form cylinders revolubly mounted on said frame, rigidly-mounted slideways on said frame extending downward from said form cylinders and diverging slightly from each other, slide-blocks movably mounted in said slideways, two transfer cylinders revolubly mounted on said slide-blocks in adjustable position thereon adapted to rotate in contact with said form cylinders and in contact with eachother for printing upon a web passing between the transfer cylinders, other slide-blocks mounted in said slideways below said first-named slide-blocks respectively, and means for moving said last-named slide-blocks simultaneously downward along said slideways for moving the transfer cylinders out of contact with said form cylinders and out of contact with each other.

6. In a printing machine, the combination of a frame, two form cylinders revolubly mounted on said. frame, rigidly-mounted slid'eways on said frame extending down ward from said form cylinders and diverg ing slightly from each other, slide-blocks movably mounted in said slideways, two transfer cylinders revolubly mounted on said slide-blocks in adjustable position thereon adapted to rotate in contact with said form cylinders and in contact with each other for printing upon a web passing between the transfer cylinders, other slide-blocks mounted in said slideways below said first-named slide-blocks respectively, means for yieldingly supporting said first-named slideblocks, connections between said first-named slide-blocks and said last-named slide-blocks respectively, and means for moving said lastnamed slide-blocks simultaneously downward along said slideways for moving the transfer cylinders out of contact with said form cylinders and out of contact with each other.

7. In a printing machine, the combination of two form cylinders, two transfer cylinders adapted to rotate in contact with said form cylinders respectively and in contact with each other for printing upon a web passing between them, a motor for rotating said cylinders, and a second motor adapted when said first-named motor is thrown out of operation to be automatically thrown into operation for moving said transfer cylinders out of contact with said form cylinders and out of contact with each other.

8. In a printing machine, the combination of two form cylinders, two transfer cylinders, movable simultaneously toward or from said form cylinders and toward or from each other, toggle-arms connected with" said transfer cylinders adapted to support them in contact with said form cylinders and in contact with each other for printing upon a web passing between the transfer cylinders, and means for buckling said toggle-arms for moving-said transfer cylinders out of contact with said form cylinders and out of contact with each other.

9. In a printing machine, the combination of two form cylinders, two transfer, cylinders, toggle-arms connected with each of said transfer cylinders for supporting it in contact with one of said form cylinders and in contact with the other transfer cylinder cam for buckling said toggle-arms whereby said transfer cylinders are moved out f con tact with said form cylinders and out of contact with each other.

10. In a printing machine, the combina-' tion of two form cylinders, two transfer other, and uides arranged to direct said transfer cylinders so that they move either toward said form cylinders respectively and simultaneously toward each other, or from said form cylinders and from each other. 11. In a printing machine, the combination of two form cylinders, two transfer cylinders cooperating respectively with said form cylinders and with each other, said transfer cylinders being movable out of contact with said form cylinders and with each other, guides arranged to direct said transfer cylinders so that they move either toward said form cylinders respectively and simultaneously toward each other, or from said form cylinders and from each other, and toggle mechanism for moving said transfer cylinders in said guides.

12. In a printing machine, the combination of two form cylinders, two transfer cylinders cooperating res ectively with said form cylinders and wi h each other, said transfer cylinders being movable out of contact with said form cylinders and with each other, and converging guides arranged to direct said transfer cylinders so that they move either toward said form cylinders respectively and simultaneously toward each other, or from said form cylinders and from each other. 13. In a printing machine, the combination of two form cylinders, inking mechanisms-comprising form rollers adapted to be moved into and out of contact with said form cylinders, two transfer.- cylinders adapted to rotate in contact with said form cylinders and in contact with each other for printing upon a web passing between the transfer cylinders, means for moving said transfer cylinders outfof contact with said form cylinders and out of contact with each other, card-operated means for moving said inking mechanisms out of contact with said form cylinders, :means automatically actuated when the machine is thrown out of operation for giving said cams a partial operative movement for throwing said inking mechanisms slightly out of contact with said form cylinders, and other means for giving said cams a further movement for throwing saidinking mechanisms farther out of contact with said form cylinders.

14. In a printing machine, the combination of two form cylinders, inking mechanisms for said form cylinders, water mechanisms for moistening said form cylinders. two transfer cylinders adapted to rotate in contact with said form cylinders and in consaid cams apartial operative movement for throwing said inking mechanisms slightly out of contact with said form cylinders, and other means for giving saidcams a further movement for throwing said inking mechanisms farther out of contact with said form cylinders and for throwing said Water mechanisms at the same time out of contact with said form cylinders.

15. In a printing machine, the combination of two form cylinders, inking mechanisms comprising form rollers adapted to be moved into and out of contact with said form cylinders, two transfer cylinders adapted to rotate in contact with said form cylinders and in contact with each other for printing upon a web passing between the transfer cylinders, means for moving said transfer cylinders out of contact with said form cylinders and out of contact with each other, cams for moving said inking mechanisms out of contact with said form cylinders, links connecting said cams withtheir respective transfer cylinder moving'means and adapted by suitable longitudinal movement to move their respective cams for moving said inkingmechanisms out of contact with said form cylinders, means automatically effective when the machine is thrown out of operation for giving said links opera- -tive longitudinal movements for'throwing said inking mechanisms out of operation through the medium of said cams, and other means adapted to be operated independently of said links for moving, said cams to vary the position of said inking mechanisms.

16. In a printing machine,"'the;combination of a frame, two formcylinders -revolubly mounted on said frame, rigidly-mounted slideways on said frame extending down ward from said form cylinders and diverging slightly from each other, slide-blocks movably mounted in said slideways, two

I transfer cylinders revolubly mounted on said slide-bloc s in adjustable, position thereon adapted to rotatein contact with said form cylinders and in contact with each other for printing upon a-web passing between the transfer cylmders, toggle-arms for movin said slide-blocks simultaneously along sai slideways for moving the-transfer cylinders out of contact with the form cylinders and rename mounted adjacent thereto, cams revolubly mounted on the axes of said form cylinders, operative connections between said cams and said inking mechanisms whereby a rotation of said cams serves to move said inking mechanisms out of contact with said form cylinders, and means actuated by the buckling of'said toggle-arms for rotating said cams for throwing said inking mechanisms out of operative position.

17. In a printing machine, the combination of a frame, two form cylinders revolubly mounted on said frame, rigidly mounted slideways on said frame extending downward from said form cylinders and diverg-- ing slightly from each other, slide-blocks movably mounted in said slideways, two transfer cylinders revolubly, mounted on said slide-blocks in adjustable position thereon adapted to rotatein contact with said form cylinders and in contact with each other for printin upon a web'\passing between the trans er cylinders, toggle-arms for moving said slide-blocks simultaneously along said slideways for moving the trans fer cylinders out of contact with the form cylinders'and out of contact with each other, inking mechanisms for said form cylinders movably; mounted adjacent thereto, cams revolubly mounted on the axes of said form cylinders, operative connections between said I cams and said inking mechanisms whereby be rotated in either direction independently of said link. I

18. In a printing machine, the combination of a frame, two form cylinders revolubly mounted on said frame, rigidly-mounted slideways on said fragile; extending downward from said form cylinders and diverging slightly from each other, slide-blocks movably mounted in said slideways, two transfer cylinders revolubly mounted on said slide-blocks in adjustable position thereon adapted to rotate in contact with said form cylinders and in contact with each other for printing upon a web passing be tween the transfer cylinders, toggle-arms for moving said slide-blocks simultaneously along said slideways for moving the transfer cylinders out of contact with the form cylinders and out of contact with each other,

inking mechanisms for said form cylinders movably mounted adjacent thereto, cams revolubly mounted on the axes of said form cylinders, operative connections between said cams and said inking mechanismswhereby a rotation of said cams serves to move said inking mechanisms out of contact with said form cylinders, links pivotally connected with said toggle-arms and movable downwardly upon the buckling of said arms, connections between each of said links and one of said cams adapted upon a downward movement of said link to rotate the cam, said connections comprising a finger adapted to hold said link in operative position relative to said cam until said cam has been given the predetermined desired rtation, and yielding means adapted to move said link out of operative position relative to the cam upon a certain predetermined downward movement of said link.

19. In a printing machine, the combinacylinders and in contact with each other for printing upon a web passing between, the

transfer cylinders, toggle-arms for moving mechanisms out of contact with said form,

cylinders, links pivotally connected with s'aid toggle-arms and movable downwardly upon the buckling'of said arms, and connections between each of said links and one of said cams comprising a pin on the cam, a shoulder on the link adapted to engage said pin, a

finger adapted to hold said link in position for said shoulder to engage said pin, and a spring adapted to throw said link out of operative position when said link has been given a certain predetermined downward movement.

ERNEST JAMES SMITH.

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