US886367A - Printing-press. - Google Patents

Description

'No. 886,367. I PATENTED MAY 5, 1908. G. G. HARRIS & W. H. SMITH.

PRINTING PRESS.

APPLICATION FILED JANA. 1907.

3 SHEETS-SHEET 1.

No. 886,367. PATENTED MAY 5, 1908. c. G. HARRIS & W. H. SMITH. PRINTING PRESS.

I APPLICATION FILED JAN. 4, 1907.

3 SHEETS-SHEET 2.

Q/vi in one:

No. 886,367. I PATENTED MAY 5, 1908. G. G. HARRIS & W. H. SMITH.

PRINTING PRESS APPLICATION FILED JAN.4, 1907.

, 3 SHEETS-SHEET 3.

UNITED sTATEs PATENT OFFICE.

' CHARLES GRANT HARRIS AND WALTER HAROLD SMITH, OF NILES, OHIO, ASSIGNORS TO THE HARRIS AUTOMATIC PRESS COMPANY, OF NILES, OHIO, A CORPORATION OF OHIO;

PRINTING-1531388.

No. aeasev.

Specification of Letters Patent.

Patented May 5, 1908.

Application filed. January 4, 1907. Serial No. 350,805.

- further objects are to enable the form rolls to be removed without the necessity of removany coacting roll from the press; to permit the several ink-rolls and drums to be readily viewed from one side of the press; and to enable the ink to be worked up or thoroughly mixed on all the rolls save the form-rolls, avoiding allaccumulation on the latter. 4

The invention will be hereinafter fully set forth and particularly pointed out in the claims. i

In the accompanying drawings, Figure 1 is.

a diagrammatic end view, partly in section. 2 is an end view with the transfer rolls out of engagement with the form-rolls. Fig. 3is an end view looking in the direction opposite to Figs. 1 and 2; Fig. 4 is a rear elevation, with parts broken away. Fig. 5 is a fragmentary rear elevation on an'enlarged sea e.

Referring to the drawings, 1, 1, designate two ink drums whose shafts 2 are journaled at their ends in the sides of main frame 3, (see Fig. 4) such shafts being capable of moving longitudinally in their bearings 4 in shifting the drums back and forth; On each shaft 2 is a gear wheel 5, both of which mesh with, and

are driven by, an intermediate gear wheel 6 leather covered rolls 13, and from the drums it is transferred to the transfer rolls 7 by intermediate transfer rolls 14. These transfer rolls 14 have their bearings in hangers 15' hung from bearings 4 of shafts 2, concentrically with drums 1,' while the bearin s of the transfer rolls 7 are mounted on shafts f 16 which extend through the frame, and carry arms 17, connected by links 18 to the arms of crank shafts 1Q havin manipulating handles 20. By depressing t e latter, the transfer rolls 7 can be swung up and held away from the series of form rolls 21, the transfer rolls 14 moving with them since they rest upon said rolls The shafts 19 carry arms 22 having laterally projectin pins 23 which contact with the edges of t e frame to limit the swin of the transfer rolls 7 both into and out of t eir normal positions. The frame at the front is overhung, and has a plate or projection 23* with which the pin 23 of the arm of the front shaft 19 contacts when the rolls 7 are elevated. The toggles formed by links 18 are slightly broken when these rolls are heldout of engagement with the form rolls, as shown in Fig. 2. By the described construction, when the transfer rolls are thrown out of engagement with the form rolls, ink may be thoroughly Worked, or mixed with an oil or other reducin agent, Without the necessity of removing t e form rolls from the press. These form rolls are shown as arran ed on an arc of a circle above the form cylin er 1 beneath which (see Fig. 1) are the transfer cylinder 1 and the impression cylinder 1 The stop pins 23 by engaging with the frame when the handles 20are thrown. up, as shown in Figs. 1 and 3, prevent the gears of the rolls 7 meshing too dee in the co-acting rears, and

likewise avoid al tendency of such rolls to crowd against the form rolls.

The ink drum-shafts 2 carry'gear pinions 24 fixed thereon between collars 25 held on such shafts by nuts 26. These ear pinions 24 mesh with a gear wheel 27 in t e form of a shifting cam journaled in an overhanging arm or bracket 28, such gear being driven by said pinions 24. On the shafts 8 of the two transfer rolls are gear pinions 29 located be tween collars 30, such pinions and collars being pressed upon sleeves which turn loosely on said shafts. These pinions 29 mesh with and are driven b ear Wheel 27.' The col lars 30 engage bal earings 31 held place by collars 32, the urpose being to minlmize the friction cause by the difference in speed between the gear pinions 29 and their respective shafts 8, said inions revolvin at the same face speed as t e periphery of t e shifting gear 27. The rotation of the latter effects the lon itudinal'shifting or reciprocation of the drums 1 and the transfer rolls 7, the shifting of all being effected simultaneously, the drum of one series and the transfer roll of the other series always traveling in opg osite directions.

he shifting gear 27, and the ear pinions of the ink drums and the trans er rolls are located at the same side of the press as are the gears for rotating the ink drums and transfer rolls. In consequence the other end of the frame may be left open, and permit of ready and easy inspection as well as access for the removal of foreign substances without the necessity of removing the rolls from the frame.

By the means described the. thorough working of the ink is accom lished through two serles of rolls and drums efore it reaches, Not only is the ink trans-' the form rolls. ferred to two drums whereon it is thoroughly distributed by se arate sets of rolls, but these drums are ein constantly reciprocated longitudinally w ile revolving, as are also the two transfer rolls by which the ink is distributed to the form rolls. This is of spec 1al advantage in planographic rintmg where the ink must be well worked efore it is applied to the plate on the form cylinder. When the transfer-rolls are elevated from the formrolls, any one or all of the latter may be removed by bein moved upwardly from their bearings wit out the necessity of removing any other roll, Another advantage resulting from the described arrangement is that the means for shiftin and rotating the ink-drums and transfer rol s being located at one side of the press, the supporting frame may be of skeleton formation at the other side, thus leaving a clear opening through which the several rolls may be inspected from time to time to ascertain the conditions thereof, and to locate and, insome instances, remove foreign substances, such as pieces of We claim as our invention: 1. In a printing press, the combination of two ink drums, ink-distributing rolls engag-' ing said drums, form rolls, two transfer rol s engaging said form rolls and to which ink is ied from said drums, and a single memsupp ber common to both drums and both transfer rolls for effecting a uniform longitudinal reciprocation of said drums and transfer rolls. 2. In a printing press, the combination of two ink drums, ink-distributing rolls engaging Bald drums, form rolls, transfer-rolls engaging said form rolls and to which ink istransferred from said drums, rotating means gitudinally, both such means being located at one side of the press.

4. In a printmg press, the combination of two ink drums, ink-distributing rolls engaging said drums, form rolls, transfer rolls engagin said form rolls and to which ink is trans erred from said drums, gear-wheels carried by said drums and transfer-rolls at one side of the ress, a driven ear-wheel with which all 0 said gear whee s engage.

and means common to said drums and transfer-rolls for shifting said drums and rolls lon-' gitudinally;

5. In a printing-press, the combination of two ink drums, ink-distributing rolls engaging said drums, form rolls, transfer rolls engaging said form rolls and to which ink is transferred from said druins, gear-wheels carried by said drums and transfer-rolls at one side of the ress, a driven gear-Wheel with which all 0 said gear-wheels engage, and means, at the same side of the press as said driven gear-wheel, common to said drums and transfer-rolls for shifting said drums and rolls longitudinally.

6. In a printing ress having a form-cylinder, and a geareel therefor, of two inkdrums having gear-wheels, ink-distributing rolls engaging said drums, form-rolls, transfer-rolls engaging said form rolls and to which ink is su plied from said drums, gearwheels carried ffy said transfer rolls, a gearwheel driven by the form cylinder gearwheel and with which the gear-wheels of the drums and transfer rolls engage, and means common to said drums .and transfer rolls for shifting them longitudinally.

7. In a printing press, the. combination of .two ink-drums, gear-pinions carried thereby,

ink-distributing rolls engaging with said drums, form rolls, transfer rolls engaging said form rolls and to which ink is supplied from said drums,gear inions carried by said transfer rolls, and a sliifting gear wheel en- .gagin all of said pinions.

8. n a printing press, the combination of two ink-drums having gear pinions on their shafts, ink-distributing rolls engaging said drums, form rolls, transfer rolls engaging said I bearings for said transfer roll, a shaft, armform rolls and to which ink is supplied from said drums, gear pinions on the shafts of said transfer rolls, one set of gear pinions being,

loose and the other set fixed, means-located at the same side of the press as said gear pin.- ions for rotating said drums and transfer rolls, and a shifting gear wheel engaging with all of said pinions and driven by the fixed set of pinions.

9. 'In a printing press, the combination of two ink drums having gear pinions on their .sliafts, ink-distributing rolls en aging said drums, form rolls, transfer rol s engagingsaid form rolls and to which ink is supplied from said drums, said transfer rolls being of less diameter than said ink drums, gear pinions loose on the shafts of said transfer rolls, means located at the same side of the press as said gear pinions for rotating said drums and v transfer rolls, and a shifting gear wheel engaging with all of said pinions and driven by the pinions of said drums.

10. In a printing press, the combination of I a lurality of form rolls, an ink drum, ink distrlbuting rolls engaging said drum, a transfer roll engaging said form rolls, a second trans fer roll for transferring ink from said drum to the first mentioned transfer roll, bearings for 1 said second transfer 'roll' movable concentrically to the axis of said drum, bearings for the first mentioned transfer roll, and means for' rocking said latter bearings to disengage said first mentioned transfer roll from said form rolls.

1 1. In a printing press, the combination of a plurality of form rolls,an ink drum, inkdistributing rolls enga ing said drum, atransfer roll enga ing said orm rolls and to which ink is supplied from said drum, rotating means common to saiddrum and saidtrans v fer rol1, a shaft having bearings for said transfer roll, and means for moving said shaft to v disengage said transfer roll from said form rolls.

12. In a printing press, the combination of a plurality of form rolls, an ink drum, ink distributing rolls engaging said drum, a transfer roll en aging said form rolls and to which ink is supplied from said drum, means for rotating said rum and said transfer roll, bearings for said transfer roll, a shaft, means connecting said shaft to said bearings, a handle for actuating said shaft, and means for limiting the movement of the latter for holding the transl and-link connections between said shaft and said bearin s, a handle for said shaft, and stops for ho din the transfer roll either in or out of its norma position.

14. In a printing press, the combination of a plurality of form rolls, an ink drum, ink distrlbuting rolls en aging said drum, a transfer fer roll for transferring ink from said drum to the first mentioned transfer roll, bearings for said second transfer roll movable concentrically to the axis of such drum, bearings for the first mentioned transfer roll, a shaft, armand-linkconnections between said shaft and said shaft, and means for limiting the move ment of the latter to hold the transfer rolls either 1n or outoftheir normal position. v

a plurality of form rolls, an ink drum, inkdistributin rolls engagin said drum, a transfer r0 1 enga in said form rolls and to which ink is supp ied from said drum, rotat-v ing means common to said drum and saidtransfer roll, -means for shiftin said drum and said transfer roll longitudinally, both such means being located at one side of the ress, a shaft having bearings for' said transer roll, and means for moving said shaft to digpngage said transfer roll from said form ro s.

16. Ina printing press, the combination of a plurality of form rolls, an ink drum,-inkdistributin r rolls engagin said drum, a transfer roil engaging said orm rolls, a second transfer roll for transferring ink from said drum to the first mentioned transfer roll, a bearing for said second transfer roll movable concentrically to the axis of said mentioned transfer roll, and means for moving said shaft for raising both of said transfer r0 ls.

17. In a printing press, the combination of two ink drums, ink-distributing rolls engagin with said drums, a series of form engaging rolls, two transfer rolls' engaging said form rolls and to which ink is transferred from said drums, means located at one side of the press for rotating said drums and transfer rolls, means located at the same side of the press for shifting said drums and transfer rolls longitudinally, and means for holding said transferi'lrolls out of engagement with said form ro s.

F 18. The combination with the two ink drums having gear. inions on their shafts, and collars on each s raft between which said gear pinions are located, of the transfer rolls of less diameter than the ink drums, gear pinions loose on'the shafts of said transfer rolls, collars on the shafts of the transfer rolls and roll engaging sai form rolls, a second transsaid last mentioned bearings, a handle for 15. In a printing press, the combination of drum, a shaft having bearings for said first lit between Whieh the gear pinions thereof are specification in the presence of two subscriblocated, ball bearings for said collars also on ing witnesses. said shafts, and a shifting gear wheel driven CHARLES GRANT HARRIS by the gear pinions of sand drums and in y 5 mesh with the gear inions of said transfer WALTER OLD SMITH rolls for shifting the rum's and transfer rolls Witnesses: longitudinally. J. C. FRYE,

In testimony whereof, we have signed this H. A, PORTER.

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