US1068480A - Multicolor-printing press. - Google Patents

Description

H. W. BREWER.

MULTIOOLOR PRINTING PRESS.

APPLIUATION FILED JUNE 8, 1912.

a SHEETS-SHEET 1' Patented M13 29, 1913.

H. W. BREWER. I

MULTIGOLOR PRINTING PRESS. APPLICATION FI'LBD JUNE 8, 1912.

Patented July 29, 1913.

3 SHEETS-SHEET 2.

H. W. BREWER.

MULTIGOLOR PRINTING PRESS.

APPLICATION FILED JUNE 8, 1912.' I

' Patented July'29, 1913.

.3 SEEBTB-SHBET 3.

@(fames: Ema/tor,

Harry Wflmwez:

iii 1;

HARRY W. IBRIENIER, OF HUTCHINSON, KANSAS, ASSIGNOR OE ONE-HALF TO FREDERICK ID. LARABEE, OF HUTCHINSON, KANSAS.

munrroonon-rnruriue rnnss.

-Specifieation of Letters Patent.

Patented July 29?, 1913.

' Application filed'J'une 8, 1912. Serial No. 702,474.

To (ZZZ whom it may concern:

Be it known that I, HARRY W. BREWER, a citizen of the United States, residing at Hutchinson, in the county of Reno and State of Kansas, have invented. certain new and useful Improvements in Multicolor- Printing Presses, of which the following is a specification. i

My invention relates to improvements in multicolor printing-presses, and my primary object is to provide a simple and efficient" press of this character whereby two or more colors may be printed by a single form cylinder at each revolution thereof.

Other objects of the invention Willhereinafter appearand in order that said invention may be fully understood, reference will now be made to the accompanying drawings, in which:

Figure 1 is a broken side elevation of my improved multicolor printing-press. Fig. 2 is a horizontal sect-ionof said multicolor printingpress on line II-II of Fig. 1. Fig. 3 is a vertical section of the press. Fig. 4 is a side elevation of a carriage carrying a number of inking rollers. Fig. 5 is a detail cross .sectionon line VV of Fig. 2. Fig. 6 is a detail horizontal section o'n-line VI-VI of Fig. 1, and Fig. 7 is a detail horizontal section on line VII- VII of Fig. 3.

In carrying out my invention I employ a suitableframe 1, in which is 'journaled a shaft 2 carrying a fixedly-mounted form cylinder 3, the circumference of which is divided into'three principal parts of approximately equal lengths and two of which contain the printing appliances 4 and 4", while the other is left blank as indicated at 5 for apurpo'se which will hereinafter apaonpear. A. shortspace 6 is also left between two ends of the printing appliances 4 and 4 to leave blank margins at the top and bottomof the sheets A. when the same are printed.

The printing appliances 4 and -may beof the usual kind, and for the sakeof brevity I shall hereinafter refer to them as stereo-- type-plates. Form cylinder 3 is provided with thecustomary retaining elements 7 to removablyesecure the stereotype-plates 'and 4 in position thereon;

' 8 desi natesan impression cylinder, which is mounted upon a shaft 9 journaled in bearpression cylinder ings 10 yieldingly-mounted in the upper portion of frame 1 to yieldingly-hold said im- 8 upon the peripheral flanges 11 placed at the ends of the form cylinder 3 to hold the impression cylinder 8 out of contact with the face of the type or other printing elements on the stereotype plates 4 and 4 The impression cylinder 8 is provided with adapted to seize the sheets A, one at a time and hold them uponthe impression roller 8 While the same carries them around into contact with the stereo-type plates 4 and 4* to be printed. 7

5 The periphery of the impression cylinder 8 is approximately the same length asspace 5, and sheets A are approximately the same length as the circumference of saidimpresr sion roller 8, which carries each" sheet thereon'around three revolutions, about one-half revolution of which is utilized in bringing a sheet into proper register with the stereotype plate 4, and the other half in discharging the printed 'sheet; the two remaining revolutions being utilized to bring the sheet successively into contact with the printing surface of the platesr i and 4*, whereby it is printed in two colors at one revolution of the formcylinder 3. Cylinders 6 and 8 are held in proper time with each other by gear wheels 13 and 14, keyed,- respectively, on shafts-2 and 9. Sheets A are supported adjacent the impression roller 8 on a table 15.

the usual grippers 12,

Stereotype-plate 4 is supplied with ink of SUItZLblQCOlOfb) a pair of form rollers 16, which in turn are supplied from a distributing roller 17, raid rollers 16 and 17 being jour naled in boxes 18 and 19, respectively, yieldingly-mounted in a pair: of carriages 20, provided withcross-heads 21, reciprocablymounted in slideways 22, secured to opposite "sides of frame 1. Roller 17 receives its supply of ink from a laterally-movable roller 23, which in turn is supplied from an inkfont 24, through the intermediacy of a feed roller 25, journaled in said ink-font.

The space between the distributing roller 17 and the feed-roller 25 is greater than the diameter of roller 23, consequently the latter is intermittently carried back and forth into contact with said distributing roller and the "feed-roller by a pair of oscillatory arms 26,

mounted at their lower ends upon, pivots 27.

Oscillatory arms 26 are actuated by a pair of reciprocatory connecting-rods 28, which the carriages.

extend loosely through said oscillatory arms which they are pivotally-connected through' the intermediacy of arms 33, depending from The distributing roller 17 is driven by a pinion 34 and .in turn drives the rollers 16 and 23 through frictional contact therewith. Pinion 34 isdriven by an intermediate gear 35'fixed upon a stub-shaft 36 and driven by the large gear -wheel 13; Longitudinal movement; is given roller 17, so that it may however,

better distribute ink on its companion roll ers, through the intermediacy of a cam 37 integral with pinion 34 and engaging a finger 38, fixed to the adjacent carriage 20 and projecting through a slot 39 in the adjacent side of frame 1', see Fig. 6. Finger 38 being stationary so far as lateral movement is concerned, moves the cam 37 and the pinion 34 laterally at each revolution thereof, and in order that this lateral movement of the pinion will not carry it out of mesh with the intermediate'gear 35, the latter is made of sufficient width to accommodate the movement of the former. carriages'QO have arms 40 extending forward toward shaft 2 and provided with rollers 41. Intermittent reciprocatory movement is imparted to said carriages 20 by a pairof cams 42 and a pair'of springs 43, which latter are interposed between the rear ends of the carriages and the adjacent inkf font 24,-see Fig.

Cams 42 are fixed toshaft 2 and eachhas a high radius 44 and a low radius 45, which latter is arranged in radial alinement with the stereotype plate 4*, sothat it will not engage the adjacent roller 41 during the 'timethe form rollers 16 are in engagement with the stereotype plate 4. Just as soon, as the stereotype plate 4 passes out of engagement with the lowermost form roller 16, the high radii 44v .of the cams'42 engage the rol1ers4l and thus push the carriages backward and thereby carry rollers 16' out of the path of the stereotype plate .4, which has been previously coated with a different colored ink by its respectiveinking mechanism, which eing a duplicate of the inking mechanism for the. stereotype 'olutio'ns thereof.

The

plate 4, need not be described in detail. The operation of the press briefly stated is as follows :Asheet is seized by the grippers 12 when the impression roller 8 is in the position shown in Fig. 3, and carried around on said impression roller during three rev- In the first half revolution of said impression cylinder 8 the front portion of the sheet is brought into register with the front side of the stereotype plate 4, which prints said sheet in one color. The stereotype plate 4 then prints the'sheet in another color. As the-stereotypeplate 4 approaches the uppermost form roller 16 of the inking means for the stereotype plate 4, the high radii 44 of thecams engage the rollers 41 and push the carriages backward, so that the form rollers 16 of said hinging means will be carried out of the path of stereotype plate 4. As the carriages 20 move backward, they,.through the intermediacy qf the connecting-rods 28, rock the" arms 26 to the left, causing them to carry roller 23 into engagement'witlrthe feedroller 13, which is rotated by one of the connecting-rods 28 through-the intermediacy, of arm 32, pawl 31, and ratchet-wheel 30. As the stereotype plate 4 passes the lowermost form roller 16, the high radii of earns 44 pass out of engagement with the rollers 41 and permit the springs 43 to push the carriages forward so that the form rollers 16 may engagethe stereotype plate 4 and coat the same with ink. When the stereotype plate 4? approaches the lowermostform" roller constituting part of the inkingmeans for the stereotype plate 4, the form rollers of the latter are pushed backward so that they in turn will not apply ink to said stereo-type plates 4, thusit will be understood that the stereotype .plates are supplied with ink only from their respective inking devices.

lVhile I have shown the form roller 3 with but two printing surfaces for a likenumber of 'colors, it is obvious that the number of printing surfaces may be increased by enlarging said form roller or diminishing the size of the impression cylinder 8 accordingly.

Having thus described my invention what I claim and desire to secure'by Letters Patent, is:

1. In a printing press,'a frame, a rotary form cylinder carried by the frame, slidable carriages carried by the frame and dis posed on opposite sides of" said cylinder,

superposed form rollers journaled in the.

carriages, distributing rollers journaled in the carriages, and contacting with the form rollers thereof, ink fonts rigidly connected tothe frame-"and having feed rollers therein, laterally movable rollers connected to the frame for alternate contact with the feed and distributing rollers, means for actuating 2. In a printing press, a frame, a rotary form'cyli'nder vcarried by the frame, slidable carriages carried by the frame-and disposed.

on'opposite sides of said cylinder, superposed form rollers journaled in the carriages, distributing rollers journaled in the carriages, and contacting with the form rollers thereof, ink fonts rigidly connected to the frame and having feed rollers therein, means for intermittently rotating the feed rollers, laterally movable rollers connected to the frame for alternate contact with the feed and distributing rollers, means actuated by the carriages foroscillating the laterally movable rollers and for also actuating said means for intermittently rotating the feed rollers, and means for actuating the carriages.

3. In a printing press, a rotary form cylinder, movable carriages on opposite sides of the cylinder, form rollers borne by thecarriages, and means to supply ink to said form rollers including an ink font, a feed roller in-the ink font having a ratchet wheel, a pivoted spring pressed arm having a pawl to engage said ratchet, an oscilla- 'tory arm, a roller borne by said oscillatory arm, a rod connected to the carriage and ex tending through the oscillatory arm, springs on said rod engaging opposite sides of said oscillatory arm, said rod having its free end for engagement with the pivoted arm to actuatesame, and means to operate the carriages.

4-. In a printing press, a frame, a rotary form cylinder carried by the frame, a slidable carriage carried by the frame, form rollers and distributing rollers in the carriage, an ink font ri idly carried by the frame and'having' a eed roller therein; a

movable device, means whereby said device intermittently rotates said feed roller, a second movable device having a roller, and means actuated by the carriage for successively operating each of said devices.

5. In a printing press, a frame, a rotary form cylinder carried by the frame, a slidable carriage carried. by the frame, form rollers and distributing rollers in the carriage, an ink font rigidly carried by the frame and having a feed roller therein, a pivoted arm connected to the frame, means whereby said arm intermittently actuates the feed roller, a roller carrying arm pivoted to the frame, and means to actuate the roller carrying arm, said last named means being normally spaced from the first named arm but contacting with and operating same uponmovement of the carriage.

In testimony whereof I afiix my signature,

in the presence of two witnesses.

, HARRY WV. BREWER.

Witnesses F. W. KATHS, G. A, McCoun.

Copies of this patent may-be'obt'ained for five cents each, by addressing the Commissioner of Patents, Washington, D. O.

Images