US881288A - Printing-press. - Google Patents

Description

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P I0 T 0N FILED SEPT. 24, 190 'AP L A I a 3SHEETB-SHEET l.

' PATRNTBD MAR. 10, 1908. R. G. BARRETT.

PRINTING PRRss.

APPLICATION FILED SEPT. 24. 1903.

3 SHEETS-SHEET 2,

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H. G. BARRETT. PRINTING PRESS.

APPLICATION FILED SEPT. 24. 1903.

3 SHEETS-SHBET 3.

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HAROLD G. BARRETT, 0F CHICAGO, ILLINOIS, ASSIGNOR, BY MESNE ASSIGNMENTST0 WILLIAM Il. COWLES, OF- SPOKANE, WASHINGTON.

PRINTING-PRE SS.

Specification of Letters Patent.

Patented .umn 10,-finos.

Application led'september 24, 1908. 'Seria1-No.`174,529.

multi-color printing-presses, though some of them can be employed in other presses.

I wluch is conveniently belt Wheel 22 journaledon a bearing formed I will first describe alcomplete machinefemsv bodying my im rovements,and 'in the claims I will specifica y point out the novel cambinations. 1

To illustrate my invention, Ifannex hereto three sheets of drawings,'in which the-same reference characters are used to designate identical parts in allthe iigures, of which,-

Figure 1 is an elevationof the machine in section on the line A-A of Fig. 3; Fig. 2 is a similar view in sectiony on the line -B`B of Fig. 3 Fig. 3 is a vertical longitudinal sectionv i the machine 0n` the linen through the center of C-C of Fig. 1 Fig. 4 is a top plan view of one of the swinging type beds. and annexed inking mechanisms; and Fig. is a detail view of a portion of the inking mechanism.

The framework of the machine consists of the three vertical castings 10, 11 and 12, which are suitably sha ed to furnish .bearings and support for a the movable members, and which are connected by suitable cross ieces and distance bars, togivejthe desired rigidity to the fram 15 in the tops ot the frame pieces 10 and 12.

'Journaled onthe'shaft 13, at the middle portion thereof, is vthe platen support, consisting of the hub 16, the spokes 17 and the plates 18, the number of the plates. .being preferably two more than the number of type eds employed, in order that in one position one lplaten may be used to discharge the printed sheet, while an adjacent platen is used to receive a fresh sheet, and the remaining platens are opposite the type beds to re- .celve an irn(press1on therefrom.

Journale in the bearings 19 and -20 in the frame pleces 10 and 11 is the driving shaft 21, driven by the heavy for use in The main' .shaft 13 is journaled in the bearings 14 and wheel 33 andthe. shaft 13 Vby the Aoli-ter` end ofthe shaft 1'3, or preferably by the sleeve' 23 constitutingan extension'of the frame piece 10. The wheel 22. is provided the gear wheel 25 secured on the outer-endiof the shaft vancetheplaten su port by aportion ofeach revolution of the 'ving .shaft Ian angular distance 'sufiicient to .bring register Withthe. next type l bedandto. lock it from movementA during therest .ofthe revolutionaof.. the Vdriving shaft, I secure upon the platen sup ort the Geneva-stop driven- .,member 26, w 'ch has,.as;,many angles as .there areplatens, and which is' driven bythe Geneva-.stop driving and locking member '27 the shaft-'21. it will be apparent ort is intermittentlyaduring. each revolution of secured on the inner vend of 'vWith this construction,

that the platen .su vanced and lockedp the drivingshaft.

Tczbringl the type bedsand. platens. in contact, in my invention, I .usemovalble .typet lpe-bed Epo er.a1 1d the extensions, .and tlvirough w 'cg pass the rod.orshaft 31 ,by which .the type. beds..are.supported so'tlat Wit fthe platens. I y preferably arrange .,mechanismto swing thesetype beds to bring them into contact Withf'ithe-f'platensv that portionfthe.revolution.of the shaft in which' theplatens are-locked from the A*mutilated gear .Wheel 32 secure on the drivjfrigshat''21and meshing Withthe diameter. of. the gear wheel 33 is, thirds'fthat of.1the Amutilated gear lthe, eri heryof the Wheel 32, so that during a reifolulli'on'of .the latter, it Will give the gear a complete revolue tion and then permit thelatte'r to stop while lthedriving shaft .completes its revolution.

` To. strengthen the gear Wheels and .revent with .the gear .-pinion'24 meshingwith' ism, and theears 30:1ocated between .the'

. the. can be swung Ato bring themfinto contactmovement,jand to secure this .result I em loy gear wheel33 secured onthe shaft 13. @The Asay,\ two wheelg32, .and the teeth .,are omitted from onethird of.

the liability of .breakage of the teet 'when` each platen in beds, and-.bring them into contact Withthe z latensl between each advance of the latter? Vso ico

Q 'senese they rengage after passing the mutilated portion, I provide the gear wheels 32 and 33 each with an enlarged tooth, 34 and 35 respectively, so located that they are in position to be engaged when the mutilated portion of the wheel 32 has passed the engaging point. The shaft'13 has secured thereon, at eitherend of the platen support, as many eccentrics 36 as there are type beds, the eccentrics being set on the shaft at the proper angles to simultaneously bring all the type beds 1nto contact'with the latens through -the connecting links 37 T ese connecting links preferably have their ends screwed by oppositely directed threads into the nut sockets 38-and 39 secured on the eccentrics and pivoted on the type-bed frames, respectively. By means of vthe angular sections 40 of the links and jam-nuts 41 and 42 cooperating -with the screw-threaded ends ofthe links 37 andthe nut sockets 38 and 39, Iam enabled to secure a very accurate adjustment to take up any wear of the parts resulting from the use of the machine.

From a consideration of the mechanism as thus far described, it will be apparent that as the shaft 21 is rotated, at each revolution the platens will be advanced the proper angular distance to bring them into register with the type beds, and locked during the remaining portion of the rotation of said shaft, during which time the rotation of the shaft 13, which now begins, will serve to swing the type beds into contact with the temporarily stationary pla tens, and swing them back before the platens are moved to the next position.

Any suitable mechanism may be employed to ink the type beds between the impressions, but I preferably employ a pair of inking rollers 43 carried by a pair of s rocket chains 44 running on the sprocket W eels 45, 46 and 47, ournaled at the inking end, type-bed end, and center of each side of the type-bed frames, respectively. The inking rollers any desired source, and I may obtain the necessary su ply of ink from liave illustrated them as running over the circular inking late 48, which is mounted to rotate slowly i 1n the bearings formed in the cross piece 49 of the type frame, and which may be actuated intermittently to advance it a small angle at each operation of the machine, to thereby furnish a fresh surface to the rollers, as is customary in this class of inking devices.

1- The chains 44 may be moved always in one direction, making a complete circuit at each operation of the machine, or may be reciprocated back-and forth at each operation from Athe inking plate 48 over the type bed and back. I preferably move the chains con- Stantly'in one direction, and for this urpose I employ the following mechanism: gecured upon the driving shaft 21 is a s rocket wheel 50, which, through the spree et chain 51,

drives a sprocket wheel 52 secured upona shaft 53 having suitable bearings in the frame pieces 11 and 12. Near the end of the shaft 53 that has its bearings in the bracket 12, is a sprocket wheel 54, which, through the chain 55, operates a sprocket wheel 56 loosely mounted on the end of the uppermost shaft 31 in the same lane. Rigidly secured to the sprocket whee 56 is another sprocket wheel 57, of the same size, and a gear wheel 58, the two sprockets and gear wheel being secured upon a common sleeve loosely mounted on the said shaft 31. The gear wheel 58 meshes with the small gear wheel 59, secured upon the shaft 60 extending across the frame of the type bed and j ournale'd in suitable bearings therein, and having the sprocket Wheel 47, which drive the chains 44, secured thereon.

rThe sprocket wheel 57, by the chain 61,

drives another sprocket wheel 56 on the intermediate one of the three shafts 31 shown in the form em loyed, which carries the same sprocket whee s 56 and 57, and the gear wheel 58, which drives the inking mechanism for that particular type bed in the same 1n anner, and the sprocket wheel 57 on that par ticular type bed, through the sprocket chain 62, drives the inking mechanism on the remaining ty e bed by the same mechanism. By the mec anism thus described, vit will he seen that at each revolution of the driving shaft 21, each of the ty e beds will be inked, the parts being preferalily so timed that the inking rollers 43 pass over the type bed while the latter is stationary and during the intermittent forward movement of the platens. By arranging the type-bed frames as thus shown, with the type bed in one end and the inking mechanism on the other, and pivoting them intermediately, it will be seen that they are more4 or less perfectly balanced, so that less power will be required to run the machine than if they were pivoted at one end, the weight of the inking mechanism counterbalancing the weightof the type bed.

To hold the sheets to be printed on the` platens in the various angles that the latter assume, I may employ any suitable mechanical mechanism, but I preferably use a vacuum, making the shaft 13-hollow at one end, as seen at 63, and opening the hollow portion as at 64, into the annular air s ace formed by cutting out the center of the hub 16, as seen at 65. Air channels 66 extend through the spokes of the platen support, and the surface of the latens is formed by plates 67 provided with numerous l'ine perforations 68, the plates 18 being cut away sufficiently t`o furnish the necessary small air chamber 69. By connecting the hollow shaft with some airexhausting mechanism, it will be apparent that a blank placed on the plate 67 will be tentional removal. If the perforations 68 f and platens adapted to coperate therewith ouped about acommon center, of means A'ir-movingfsaid platens intermittently to grouped about thel center of said support are of a-sizeto'interfere Awith the' clearness eof the im ression, the portion of the plate 6.7 upon w 'ch the impression-is to be made can -be covered bya'sheet of. paper or.` thin cardbeardstrong-enough to resist thesuction of f the-air,fwhile the paper or cardboardv may be cut away orl have perforations made therein -coincident-:withthe perforations '68 opposite :the `portions/ 'v'vhere the impression is not made.

'.Wlnle I-have-shownmy lnventionzas embodied-ina ress adapted for.multicolor printin it w1 l. be understood thatit might elem-p oyed for any press'in-which a plural seriesof impressionsare to be: made on the same paper or blank. 'It willlbe'also understood that myfinventionlis capable of various modifications, and that I do-'n'ot desire to be limited inthe interpretationofthe following claims, except as may be 4necessitated by the state ofthe rior art.

What I -c aim Avas new anddesire to secure iby Letters Patent of the United States is,

1. InA a-devicc of the? class described, Vthe Ycombination with the plurality'of type beds bring them=into register -with the different type beds in succession .an-d formoving the -type beds toward thev platens to contact therewith 4between the movements of the latter.

2.`In a device of the class described, the combination with the framework, ofthe rotating-support forthe platens, the plurality of. platens therein, the plurality of type beds and movable in the-frame towards sa center, means for advancing the platen support intermittently to bring t e latens into regis- `ter with .the different typev eds in succession support intermittently to bring the land for moving the type beds toward the platens to contactl therewith between the movements of thesup ort.

3.l In adevice of t e class described, the combination with the plurality of type beds and platens adapted to coperate therewith ouped 'about a common center, `of means or moving said vplatens intermittently to bring-them into-register with the different typebedsin succession and for moving the type lbeds toward the platens to lcontact therewith between the movements of the latter, and means for'inking the type beds'between theircontacts with the latens.

4. In a device of the class escribed, the

,combination-with the framework, of the roe platens j ournaled into registerwith the diHerent type;-

- distributing by said support,

succession, meansfor moving. the. type. beds .toward they platens to contact therewith* between `the movementsl ofv thefsupport, and

5'. In a -de .'ce of. he class described,.the

combination with the framework, ofthe'ro- -tatin platen-support journaled therein,` the Aplura ity of`platens carried vby saidv support,

the plurality of t e beds mornzited.tofswingl in said frame an groupedabout theplaten support, means for moving" the.: -platemsupport intermittently to bring-the latens into register with. the. differenti type eds-:insuccession, and Vmeans for .swinging theftype beds toward the platens to contact-therewith -between the movements of Athe latter.

.6. -In a device of' thezclassdescribed, the combination with =the iframework, of the platenv support journaledztherein; theplatens carried by saidA support, the type-bed-carrying frames having type beds at one end andinkmehanismat-:the .other grouped about said platen sup ortandpivoted to the main frame betweenit eir ends, inkingrollers movin from the -.distribnting mechanism over te type-bed, means*for;moving-said platen support intermittently'- to bring;the

latens intoV register-.with the different t e eds in succession, -means for moving 5the type beds towards the :platens l to r contact therewith between the Amovements of :the latter, and means foroperating the distributu ing mechanism.

7. In a device of the Iclass described, -the combination with the framework, vof ythe platen support journaledtherein, the platens on said support, the balanced swinging typebeds grouped about said platens and adapted to coperate therewith, means for moving the support intermittently to bring; the platens into register with the'A different ltype beds in .success1on, and means for swinging the type bedsv toward the platens to contact therewith between the movements of. the latter.

f8. In a device' of the class described, the combination withthe plurality of type beds and platens adapted to coperate therewith grou ed about a common center, of a rotating riving shaft, andconnections between said platens and ty e beds 4and driving shaft whereby apart of t e rotation of the latter is used lto advance the latens intermittently .to bring them into register vwith the different type beds in succession andthe remainder of the rotation is used to movel the type beds toward the platens t0 contact therewith.

9. In a device of the class described, the combinationvwith the plurality of type beds and platens adapted to coperate therewith grouped about a common center, of means for inking the type beds between their contacts with the platens, a rotating driving shaft, and connections between said platens,

mounted on said support, the swinging type beds grouped about said platens, removable journals for the type beds, and means for advancing theA platen support intermittently to bring. the platens into register with the different-type beds in succession and for, swinging the type beds toward the platens to contact therewith between the movements of the latter.

11. In a device of the class described, the combination with an intermittently rotatable platen, of a swinging frame having a type bed thereon pivoted adjacent the ceny ter of gravity thereof, and means for swinging the frame to contact the type bed with the platen when the latter is stationary.

12. In a device of the class described, the combination with an intermittently rotatable platen, of a swinging frame having a type bed at one end and ink-distributing mechanism at the other end pivoted near the center, inking rollers moving from the distributing mechanism over the type bed, and means for swinging the frame to contact the type bed with the platen when the latter is stationary.

13. In a device of the class described, the combination with the plurality of type beds and platens adapted to cooperate therewith grouped about a common center, of means for moving said platens intermittent] to bring them into register with the different type beds in succession, and means for moving the type beds tov'ard the platens to contact therewith between the movements of the latter, said means consisting of a rotating shaft," eccentrics thereon corresponding in position to the type beds, and links connectin'g the eccentrics and type beds.

14. iIn a device of the class described, the combi-,nation with the plurality of type beds, and platens adapted to coperate therewith grouped about a common center, of means for moving said platens intermittently to bring .them into register with the different type beds in succession, and means for moving the type beds toward the platenslto contact therewith between the movements of the latter, said means consisting of a rotating shaft, adjustable links connecting the type beds and shaft, and connections between the shaft and latter.

15. In a device of the class described', the combmation with the framework, of the platen-carrying frame rotatably mounted thereon, the platens carried by said frame, the type beds grouped about said platens, a driving shaft, Geneva-stop driven mechan'- ism between said shaft and the platen-carrying frame to advance the frame intermittently, and means for moving said type beds toward the platens to contact therewith between the movements of the latter.

16..In a device of the class described, the comblnation with the framework, of the main shaft mounted to rotate therein, the platen lframe mounted to rotate on said shaft, platens carried by said frame, type beds grouped the links for moving the about said platens, a driving shaft, mutilated gear connections between said driving shaft and main shaft for giving the latter a complete rotation during a portion of the rotation of the former, driving and locking connections between the driving shaft and Athe platen-carrying frame for advancing the latter intermittently while the main shaft is not moving, and connections between the .main shaft and the type beds, whereby the latter are moved into contact with the platens between the movements of the latter.

` 17. In a device of the class described, the

combination with the plurality of type beds and platens adapted to cooperate therewith grouped about a common center, of a driving shaft, Geneva-stop connections between said driving shaft and platens for advancing the same intermittently, and means actuated by said driving shaft to contact the platens and type beds between the forward movements of the former.

18. In a device of the class described, the combination with the framework, of the rotating platen support journaled in said frame, the platens mounted on said support, the type beds grouped about said platens, a driving shaft, Geneva-stop mechanism between said driving 'shaft and platen support for intermittently advancing the latter, and means operated by said driving shaft for contacting the platens and type beds between the forward movements of the platen support.

19. In a device of the class described, thc combination with the framework, of the rotating platenl support journaled in said frame, the platens mounted on said support, the type beds grouped about said platens transversely movable support for the type beds a driving shaft, Geneva-stop mechanism between said driving shaft and platen support for intermittently advancing the.

latter, and means operated by said driving shaft for contacting the platens and type b eds between the forward movements of the platen support, consisting of an eccentric shaft, and links connecting the shaft and ter, and air passages leading from the chamtransversely movable supports. vber tothe surface of the platen. 10 20. In a device of the class described, the In witness whereof, I have hereunto set combination with the platen support, of the my hand this 19th day of September, 1903.

5 shaft upon Which it is journaled, a flat sur I HAROLD G. BARRETT.`

faced platen carried by said support an air4 Witnesses:

passage leading from said shaft to the platen JOHN H. MCELROY,

support, an air chamber formed in the lat.- C. A. MGELROY.

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