US1364598A - white and w - Google Patents

Description

I. WHITE AND W. K. AECKHARDl PRINTING PRESS.

APPLICATION FILED Ame, :920.

2 SHEETS-SFEET I.

I. WHITE AND w. K. EGKIIAIIIJ.

PRINTING PRESSlv APPLIc/ITIQII FILED AMG, I92o.

1,364,598. Patented Jan. 4, 1921.

2 SHEETS-SHEET 2.

UNITE!) QEJICE.

JOSEPH WHITE, 0F IJDDLESEX, AND 'WILLAM K. ECKHARD, OF PLAINFIELD, NEW JERSEY.

PRINTING-PRESS.

Specification of Letters atent.

Patented Jan. t, 1221.

Application filed April 6, 1920. Serial No. 371,686.

To @tlm/'11,0721 may concern:

Be it lrnown that we, dosnrri WHITE, a citizen of the United States, residing at Middlesex, in the county of Middlesex and State of N ew Jersey, and lWILLrAi/i K. Floir- HARD, a citizen ol the United States, residina" Plainfield, in the county or Union and State of New Jersey, have invented certain new and useful improvements in.

Frinting-Presses, of which the 'tollowing-i is a speciiication.

@ur present arrangement relates to printing; presses in which the form inlnng rollers are arranged to be raised and lowered iroin contacting position with the @ne of the objects ot our invention is to provide an electrically operated roller hilo ing and lowering device controlled the tripping and nntripping of the printing; couple. I

nnother object ot our invention is to proifide such a device in which the rollers will be raised automatically when the press is tripped, and lowered automatically when the printing couple is in printingl relation, and which also is sui'iiciently under the control ot the operator so that he may reverse the normal position of the rollers at will.

Another object of our invention is to provide such a machine so that no matter whether the operator reverses the normal position ot the rollers or not, such'rollers will be caused to synchronize in their raising` and lowering with the tripping and untripping or" the printing couple.

TWith these and other objects in view our invention consists of the combinations and structures hereinafter described and more specilically pointed out in' the appended claims.

In the drawings, Figure 1 is a more or less diagrammatic side elevation of one type oi printing press which we have chosen for purpose ot illustration, and to which an i lustrative form of our invention is shown applied; 2 is a more or less diagrammatic view of the wiring used in the arrangement shown in Fig` 1. Like parts have like reference numerals in the several ures.

l ln the drawings, 10 is an impression cylinder and 11 a form cylinder mounted to turn together in suitable bearings in the well-known manner, these two cylinders constituting, in the press illustrated, a printing couple. 12, 12 represent the series of inlring rollers adapted normally to contact with tlie-foi=1n carried by the form cylinder 11. es is well understood by those skilled in the art, these rollers are carried in suitable sockets which are adjustably attached to a bracket 13 adapted to slide in the guideways let, 14. lo the bracket 13 is attached al pair of rollers 15, 15 which engage with the top of a bar 16, such bar having a pair of depressions with which the rollersn 15, in the iliosition of the part shown in Fig. 1, are engaged. To the left hand end of the bar is attached a link 17 which in turn is con ected to a lever 18 attached to a shaft 19 extending across the press. lt will be understood that the parte so tar described are duplicated on either side of the press and, as is well understood, when the bar 16 is in the position shown in F ig. 1 the bracket 13, and therefore the rollers 12, are in their lowermost positions, and the rollers contact with the form. 1t, on the other hand, the shaft 19 is turned anti-clockwise so as to move the bar 16 to the right of Fig. 1, the rollers 15 will rest on the high part ot the top oi the bar 16 and will cause the brackets 13 to move upwardly to lift the rollers 12 above the form.

is a means tor moving the sha-tt 19, we attach to the shaft a'double ended arm 20 having pins 21 and 22. A member 23 pivotally connected at 2li to the end or" the shaft 25 of the form cylinder 11 has its outer end formed with a projection 26 and a pair of notches 27, 28.

The pivot 24e is eccentric to the shaft 25 so that when the torm roller 11 rotates, the member 23 is reciprocated bach and forth. the member 23 is held in the position shown in Fig. 1, it will contact with the pin and move it to the position shown in F ig. bince this position is the extreme of the stroke ci' the member 23, the shaft 19 will remain in this position until the member 23 is raised, so that notch 27 will contact with the pin 22 on the next forward stroke of the member 23. rlhe shaft 19 will then be rota ed anti-clockwise to move the bar 16. So l ber 23, and restore the parts to the position shown in Fig. 1.

rlhe arrangement so tar described is substantially the same as that shown for lifting inlnng rollers in the prior patent to Joseph lllhite, No. 1,214,485, granted January 30, 1917, and no Yfurther description thereof would be necessary. lt will be understood, however, that we have adopted this particular arrangement for lifting the inlring rollers merely l'or illustrative purposes.

In order to shift the member 23 from one position to the other so as to trip or untrip, or raise or lower, the inlring rollers, we provide an arm 30, forming part oli the member 23, which carries a puppet 31, through which passes a spring rod 32 having a pair springs 33, 34 on either side oi" the puppet, the opposite ends ot the springs abutting against suitable washers lined on the rod rlhe opposite end of the rodV 32 is connected to a member 35 pivoted at 36 and having a guard section 37 which is adapted to swing across a pin 36, which pin is adapted to be moved into and out of the path of the section 37 by devices to be hereinafter described. vWith the parts in the position shown in Fig. 1 the member 30 as it is carried around by the pin 24 swings the member 35 back and' forth, so that the vertical position of the member 23 is not affected. 1t, however, when the parts are in the p eition shown in Fig. 1 the pin 38 is thrown upward, then the member 35 cannot sw to the right ot Fig. 1, and this will turn members 23 and 30 around the pivot s that pivot is carried around by the shalt to swing the member 23 upward, so that tle notch 22' will be in operative relation to the pin 22. ln other words, while the pin 33 is in the position shown in Fig. 1, the rollers 12 will be in inlring relation with the torni. When the pin 38 is moved upwardly, as shown in Fig. 2, the parts will be held so that the rollers 12 will be raised and held away trom the form.

Preferably, we move the pin 33 by electrical means which, in the form illustrated, consists ot a solenoid 39 having a movable core 40 with which the pin 36 is yieldingly connected by means ot the spring 41. To the lower end oi the movable core 40 is attached a rod 42 having a contact plate 43 adapted to contact with a pair ot' switc1 members when the rod 42 is moved upwardly.

ln the 'form illustrated, the printing couple is separated by moving eccentric bearings which carry the cylinder 10,)this moving being accomplished by any o1v the wellknown tripping mechanisms. ll] e have shown one part ot such a mechanism consisting of a shai't 44 extending across the press, to either end of which is 'lastened a lever 45 connected by a link 46 with the eccentric bushing 47. In the position shown in llig. 1, the bushings are turned so that 'the printing couple is in printing position. l'fhen the shaft 44 is turned clockwise, the bushings 47 will be turned to move the cylinder 10 away from the cylinder 11. @n the shaft 44 we provide a cam lever 50 having a Vfam tace with a high portion 51, a low portion 52 and neutral portions 53, 54. This cam is arranged to contact with the end ot a pin sup orted slidingly in a suitable snpport, and normally moved to the lett ot llig. 1 by a spring 56. @n the rod 55 is mounted a blade 5"?, a blade 56, a distance piece 59 and a spring 60, there being a limiting pin 611 against which the hub ot the blade may contact. fill ot these parts, except the pin 611 are loosely mounted on the pin 55. The blades 57 and 53 are adapted to contact with switch members, as shown.

Referring now to .2, which shows thecircuit connections between the parts heretofore described, 61, 62 are the mains connected to any suitable source ot power. rllhe main 62 connects directly with one side of the solenoid 39, the other wire of which, 63, connects to a wire 64, connected to wire 65, one end olf which is attached to one ot the switch points with which the blade is adapted to contact, the other switch point being connected through a wire 66 with the main 61. @ne of the switc points ot the switch 43 is connected by te wire 67 to the wire 64, and the other point is connected by the wire 68 with one ot the switch 3 ints with which the switch blade 57 is tod to contact, the other switch point iis switch being connected by a wire 69 ugh a normally closed switch 70 with a wire 71 connected to the wire 66. The wire 65 leads to a normally open switch 72, the

other switch point or" which is connected through the wire 73 with the wire 71. Preierably, the switches 70 and 72 are of the push button type, since, as will be explained hereinatter, it is contemplated that they shall be moved from their normal position by hand and only momentarily.

lvlith the construction described, if the printing couple is to be tripped, the shaft 44 will be rotated clockwise so that the pin will lirst move to the low part 52, then to the high part 51 and iinally to the neutral part 54 ot the cam on the arm 50, and will remain in this position so long as the couple is tripped. ln passing from the neutral position 53 to the row position 52, switch 57 will be opened by reason of the motion ot the pin to the lett of Fig. 1, by reason oit the expansion ot the spring 56. rlhe pin 611 will then Contact with blat" the distance piece 59, will move the blade 57 away -from its contact points. This will have, however, no effect in the operation of the device. As the pin 55 moves from the and throughI low part 52 to the high part 5l, the switches 57 and 58 will be closed. The closing of the switch 537 will produce no effect, but as soon as switch is closed, the current will pass from the main 6l through wire 66, to switch 58, the wires 64, 63 and the solenoid 89 to the main 62. The solenoid will then be energized and the pin 38 moved to the position shown in Fig. 2. This, as has been previously explained, will stop the oscillation ot' the member Si' and will raise the inlring rollers. As soon as the pin 38 moves up ward, the switch plate 43, which is connected to the core et), will he carried into contact with its switch points and will close a circuit througi the solenoid which will be indopenfleii.; of the switch 58, this circuit being l from, the main 69; through the solenoid, the wires G3, 6?', the switch 8, the wire 88, the switch the wire G9, the switch 70 and the wires 7l d 68. When, therefore, the pin moves from the high part 5l to the nei trai p 'on is, so as o open the switch 58, but um`Y wie switch 57, the solenoid 89 will be continuously energized to hold the pin um wi. and to maintain the inlcing rollers llilhen, in turn, the printing couulc is un trippoc and brought into printing relation, the shait dat will turn anti-cloclrwise and the pin will virst move to the right as it passes to the high part This will cause no change in the operation, but as soon as the pin reaches the low part 52, the switche` .i8 d 5T will both he opened so tl b, .n circuits through the solenoid 39 he broken. This will cause the i' 'on andtherollers be restored to ion. the pin reaches the ne .i par.; the switch 57 will again be closer, hut this will not energize the solenoid 39 liccauflle., when the solenoid 53) was denergized. the rofl dropped to open the switch 4B..

From the foregoing, it will be seen that the momentary closing et th switch will euery' the solenoid 59, and that this will result in the closing ol the switch that the subsequent opening ot the switch o8 will r argine the solenoid.. Similarly, the n'zoimnta ryi opening ot the switch will deenergir/.e the solenoid and cause the pin 88 to ieinain permanently down.

lllhec the operator oic the press is prepart -printing, he sometimes 'wishes to tl... 'li in contact with the .he printinu coi'plo is separat-ed, provided c `ces by which this mplished. ll nl the solenoid enl -..ed and the pin 38 projecting upward, a momen opening ot the switch 70 will canse the inning rollers to be lowered into c ntact with the orm, because this switch in the circuit which passes through the switch 57 and the switch 43, as well as the solenoid 39. The instant the current ceases flowing in this circuit, therefore, the sole-.

noid is denergized and the switch 43 opened, so that the subsequent closing of the switch 70 will not renergize the solenoid.

Similarly, while the couple is in printing position, it is sometimes desired to raise the inking rollers and this may be accomplished by momentarily closing the switch 72. rlhis permits a current to pass directly through the solenoid rom the mains, and when so energized, the switch 4:3 is also closed, which completes a circuit through the switch 57, which is always closed when the cylinders are either in tripped or untripped positions.

lt will be seen that, by the arrangement which we have described, the operator may raise or lower the rollers as he desires so that temporarily the raising and lowering oiE the rollers is out or" step with the automatic raising and lowering, and that, when the press is started up again in normal operation the automatic arrangement will be thrown into action, so as to raise the rollers when the couple is tripped, and to lower them when it is untripped, regardless et the position in which the rollers may have been lett by the operator before resuming the normal operations of the press.

lt will be understood that, while we have shown the inlring rollers as above the form cylinder, they may in some cases be below that cylinder, and that when we have used the terms raised and lowered, we mean the moving ot' the rollers out of and into printing relation with the form.

It will be also understood that the printing couple may consist of a cylinder and a iat forni as well as of two cylinders and that such couple may be the form and blanket cylindersot an offset press.

W'hile we have illustrated our invention in connection with solenoids as the electrically operated devices for actuating the roller moving mechanism, it will be under stood that any other electric-ally operated device may be used.

As a matter ot simplicity, we prefer to use the solenoid which raises the pin 38 as the means for closing the switch 43, but it will be understood that, if desired, a separate solenoid or other electrically operated device could be used to close this switch when the circuit through the solenoid is energized.

llllhile we have illustrated a roller-raising device in which the rollers are raised when the circuit through the solenoid is energized, it will be obvious that the reverse of this arrangement may be used. llt', for instance, the link 17 and its lever 18 were on the opposite side ot the shaft 29, then the rollers would be lowered when the solenoid 39 is energized, and raised when it is denergized. We prefer the arrangement shown, however,

because normally the rollers ai'e in Contact with the printing i'orm for a greater time while the press is in operation than they are off the form, and the arrangement which we have shown results in a saving o electrical energy.

We claim:

l. ln a printing press having a trip, form inking rollers adapted to move into hiking and non-hiking positions, means, including au electrically operable device, adapted, when said device is energized, to move said rollers 'from one position to the other and maintain said rollers in the latter position, and when denergized, to reverse such motion and position, and automatic ine-ans connected to the printing couple to control said device to cause said rollers to be iaised when the couple is tripped and to be lowered when the couple is untripped.

ln a printing press having a trip, form inlring rollers adapted to move into inlring and non-inlring positions, means, including an electrically operable device, adapted -when said device is energized, to move said rollers `from one position to the other and maintain said rollers in the latter position, and when deenergized, to reverse such ino tion and position, and automatic means connected to the printing couple to control said device to causel said rollers so be raised when the couple is tripped and to be lowered when the couple is untripped, and hand operated means to Control said device ivlxereby said rollers may be lowered .vliile the couple is tripped.

3. ln a printing press having a trip, torni iiilring rollers adapted to move into inling and non-inking positions, means, including an electrically operable device, adapted, when said device is energized, to more said rollers from one position to the other and maintain said rollers in the latter position, and when denergized, to reverse such inotion and position, and automatic means connected to the printing couple vto control said device to cause said rollers to be raised when the couple is tripped and to be lowered when the couple is untripped. and hand operated means to control said device whereby said rollers may be raised while the couple is untripped.

t ln a printing press having a trip, .form

inlring rollers adapted to move into inlring and non-inking positions, means, including` electrically operable device, adapted.

tion to the other and means, including a normally open, hand opei Y switch, constructed and arranged to control said device to cause said rollers to be raised and held in non-inlring position when said switch is closed momentarily while the couple is untripped.

3. ln a printing press having a trip, form irliing rollers adapted to move into inking and non-inlring positions, means, including an electrically operable device, adapted, when said device is energized, to move said rollers from one position to the other and maintain said rollers in the latter position, and when deenergized, to reverse such motion and position, and automatic means connected to the printing couple to control said device to cause said rollers to be raised when the couple is tripped and to be lowered when the couple is untripped, and means, including a normally closed, hand operable :-;witcli, constructed and arranged to control said device to cause said rollers to be lowered and held in inling position when said i Itch is opened momentarily while the couple is tripped.

(i. ln a printing press having a trip, form inlzing rollers adapted to move into inking and non-inking positions, means, including an electrically operable device, adapted, when said device is energized, to move said rollers from one position to the other and maintain said rollers in the latter position, and when denergized, to reverse such motion mid position, and automatic means con- 'ed to the printing` couple to control said we to cause said rollers to be raised when the couple is tripped and to be lowered the couple is untripped, and hand operable means whereby said device may be roiirolled to cause said rollers to be raised and held in non-inking position while the couple is untripped and to cause said rollers to lowered and held in inking position while the couple is tripped.

7, ln a printing press having a trip, JEorrn iiilring rollers adapted to move into inking and non-inking positions, means, including au electrically operable device, adapted, when said device is energized, to move said rollers from one position to the other and maintain said rollers in the latter position, and when deenergized, to reverse such motion and position, and automotic means connected to the printing couple to control said i' evice to cause said rollers to be raised when couple is tripped and to be lowered when "lie couple is untripped, and hand operable :cans whereby said device may be conlled to cause said rollers to be raised and `4l in non-inking position while the couple s untripped and to cause said rollers to be owered and held in inling position while the couple is tripped, said automatic means heine' constructed and arranged to cause the raising and lowering of said rollers to synchronize with the tripping and untripping of the couple after said hand operated means have been operated.

8. In a printingpress having a trip, form inlring rollers adapted to move into inking and non-inking positions, means, including an electrically operable device, adapted, when said device is energized, to move said rollers from one position to the other and maintain said rollers in the latter position, and when denergized, to reverse such motion and position, a first circuit including said electrically operable device and a first switch, a second circuit including said electrically operable device, a second switch and a third switch, means controlled by the printing couple and adapted to close said rst switch momentarily to energize said electrically operable device when the printing couple is moving in one direction between tripped and untripped position, and to cause both said first and said second switches to be open momentarily when the printing couple is moving in the opposite direction between tripped and untripped position, and to hold said second switch closed and said first switch open when the printing couple is in tripped or in untripped position, and means to close said third switch when said. electrically operable device is energized.

9. 1n a printing press having a trip, form inking rollers adapted to move into inlring and non-inking positions, means, including an electrically operable device, adapted, when said device is energized, to move said rollers from one position to the other and maintain said rollers in the latter position, and when denergized, to reverse such motion and position, a first circuit including said electrically operable device and a first switch, a second circuit including said electrically operable device, a second switch and a third switch, means controlled by the printing couple and adapted to close said first switch momentarily to energize said electrically operable device when the printing couple is moving in one direction between tripped and untripped position, and to cause both said first and said second switches to be open momentarily when the printing` couple is moving in the opposite direction between tripped and untripped position, and to hold said second switch closed and said first switch open when the printing couple is in tripped or in untripped position, means to close said third switch when said electrically operable device is energized, and a shunt circuit around said first switch and a normally open hand operable switch in said shunt circuit.

10. In a printing press having a trip, form inlring rollers adapted to move into inking and non-inking positions, means, including an electrically operable device, adapted, when saidv device is energized, to

move said rollers from one position to the other and maintain said rollers in the latter position, and when denergized, to reverse such motion and position, a first circuit including said electrically operable device and a first switch, a second circuit including said electrically operable device, a second switch and a third switch, means controlled by the printing couple and adapted to close said first switch momentarily to energize said electrically operable device when the printing couple is moving in one direct-ion between tripped and untripped position, and to cause both said first and said second switches to be open momentarily when the printing couple is moving in the opposite direction between tripped and untripped position, and to hold said second switch closed and said first switch open when the printing couple is in tripped or in untripped position, and means to close said third switch when said electrically operable device .is energized, and a normally closed hand operable switch in said second circuit.

l1. In a printing press having a trip, forni inking rollers adapted to move into inlring and non-inking positions, means, including an electrically operable device, adapted, when said device is energized to move said rollers from one position to the other and maintain said rollers in the latter position, and when denergized, to reverse such motion and position, hand operable means whereby said device may be energized or denergized at the will of the operator to cause said rollers to be moved and maintained in inlring or non-inlring position, and automatic means, controlled by the printing couple, to control said device to raise said rollers when the printing couple is tripped and to lower said rollers when the couple is untripped, said hand operable means and said automatic means being each operable irrespective of the operation or non-operation of the other.

12. ln a printing press having a trip, form inking rollers adapted to move into inlring and non-hiking positions, means, including an electrically operable dev1ce, adapted, when said device is energized, to move said rollers from one position to the other and maintain said rollers in the latter position, and when de'energized, to reverse such motion and position, a first circuit in cluding said electrically operable device and a first switch, a second circuit including said electrically operable device, a second switch and a third switch, means in the first circuit adapted to close said third switch when said first circuit is energized, means controlled by the printing couple and adapted to close said first switch to energize said first circuit when the printing couple is moving in one direction between tripped and untripped position, and to open both said first switch and said second switch simultaneously when the printing couple is moving in the opposite direction.

13. In a printing press having a trip, form inking rollers adapted to move into inling and non-inking positions, means, including an electrically operable device, adapted, when said device is energized, to move said rollers from one position to the other and maintain said rollers in the latter position, and when denergized, to reverse such motion and position, a first circuit including said electrically operable device and a first switch, a second circuit including said electrically operable device, a second switch and a third switch, means in the first circuit adapted to close said third switch when said first circuit is energized, means controlled by the printing couple and adapted to close said first switch to energize said first circuit when the printing couple is moving in one direction between tripped and untripped position, and to open both said first switch and said second switch simultaneously when the printing couple is moving in the opposite direction, and a hand operable means whereby said first circuit may be energized when said first switch is open.

14. In a printing press having a trip, form inking rollers adapted to move into inlring and non-inking positions, means, including an electrically operable device, adapted, when said device is energized, to move said rollers from one position to the other and maintain said rollers in the latter position, and when denergized, to reverse such motion and position, a rst circuit including said electrically operable device and a first switch, a. second circuit including said electrically operable device, a second switch and a third switch, means in the first circuit adapted to close said third switch when said first circuit is energized, means controlled by the printing couple and adapted to close said first switch to energize said first circuit when the printing couple is moving in one direction between tripped and untripped position, and to open both said first switch and said second switch simultaneously when the printing couple is moving in the opposite direction, and a hand operable means whereby said second circuit may be opened when said second switch is closed.

15. In a printing press having a trip, form inking rollers adapted to move into inking and non-inking positions, means, including an electrically operable device, adapted,

when said device is energized, to move said rollers from one position to the other and maintain said rollers in the latter position, and when denergized, to reverse such motion and position, a first circuit including said electrically operable device and a first switch, a second circuit including said electrically operable device, a second switch and a third switch, means in the first circuit adapted to close said third switch when said first circuit is energized, means controlled by the printing couple and adapted to close said first switch to energize said first circuit when the printing couple is moving in one direction between tripped and untripped position, and to open both said first switch and said second switch simultaneously when the printing couple is moving in the opposite direction, said last mentioned means including a cam adapted to be oscillated when said couple moves between tripped and untripped position and a member adapted to be moved by said cam.

16. In a printing press having a trip, form inking rollers adapted to move into inling and non-inking positions, means, including an electrically operable device, adapted, when said device is energized, to move said rollers from one position to the other and maintain said rollers in the latter position, and when denergized, to reverse such motion and position, a first circuit including said electrically operable device and a first switch, a second circuit including said electrically operable device, a second switch and a third switch, means in the first circuit adapted to close said third switch when said first circuit is energized, means controlled by the printing couple and adapted to close said first switch to energize said first circuit when the printing couple is moving in one direction between tripped and untripped position, and to open both said first switch and said second switch simultaneously when the printing couple is moving in the opposite direction, the blades of said first and second switch being adapted to be moved in the same direction to close said switches and said last mentioned means including a cam adapted to be oscillated when said couple moves between tripped and untripped position and having central adjacent high portion and low portions, a. neutral portion at either end, and a member adapted to be moved by said portions andto transmit motion to said blades.

JOSEPH IVIIITE. WILLIAM K. ECKHARD.

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