US1524326A - Machine for printing from engraved plates or dies - Google Patents

Description

Jan. 27, 1925.

F. WAITE MACHINE FOR PRINTING FROM ENGRAVED PLATES OR DIES 2 Sheets- Sheet 1 Filed Oct. 14, 1921 Jan. I 27, 1925.

F. WAITE MACHINE FOR PRINTING FROM ENGRAVED PLATES 0R DIES Filed Oct. 14. 1921 2 Sheets-Sheet 2 Patented Jan. 27, 1925,.

fUNiTED STATES FRED WAITEgOF INGLEWO'OD, ENGLAND.

MACHINE non PRINTING FROM ENGRAVED 1 IiATES on inns.

Application filed October 14, 1921. SeriaI No. 507,726.

To all whom it may concern:

Be it known that I, FRED WAITE, a subject ofthe'King of Great'Britain, and resident of Inglewood, Otley, in the countyof YorkfEng land, have invented a certain new and iisefiil Improvement in Machines for Printing from Illngra'ved Plates or Dies, of which the following description, having reference to the accompanying sheets of drawings, is a'specification.

t relates to printing machines wherein dies'orengrax ed platesare'used, and more particularly to thatcla'ss ortype of said printing machines wherein the die or engravedplate during the printing process is face downwards andtheret'ore the printed card, paper orthe like is face upwards so thatiits printed surface is displayed to the attendant, and 'niy said invention consists in so mounting the said printing die and constructing and arrangingthe varied parts and guiding surfaces in connection therewith, that after each'irnpre'ssion has been made the die begins to move from its position where same has been carried out, and then turns 'fFOlllSllCllliilbGI' position'to move up inclined guides to be taken to the position-wherethe inking, scraping and wiping processes are carried out. During the ascending part 0t its movement its engraved or printing surface is displayed to the attendant as it also is after said inlringfprocess has been completed when it isldescending to finally returnto its printing position. By thus making use'o-i these compound movements o'li'the 'die the attendantis enabled to detect any irregularities or defects that may occur and attend to them accordingly. In addition to the featuresabove described I so mount and arrange the printing die that I am'enabled to use in connection therewith, a device which will automaticallyremove or strip the printed card, paper or the like from the die after the printing operation.

lnthe accompanying sheets of drawings which are illustrative of my invention Fig. 1 is a part sectional side elevation of suiiicient of a machine to show the applica tion of my improved devices. v

Fig. 2 is a front elevation of certain or the parts shown byFig. 1. s s

Fig. 3 isa front view, of the die carriage and the parts which support same.

Fig. L is a side elevation of the parts shown by Fig. 3.

printed sheet from the die 5 is a sectional plan of certain parts shown'by Fig. 1, "said parts being made use of for strippingthe printedcard; onsheet from the die after the printing operation.

Fig. 6 illustrates in detail a detachable part of the devicesshown by Fig. 5.

Fig. Tillustrates'the strippingdevicein its highest position which it assumes to allow greater freedo'm for 'ieeding the sheets of paper or the liketo' the machine.

Fig.8 shows the samedevice in its midposition when the impression isfto-be made.

Fig. 9 shows the same device in its lowest position where it. will have stripped the I prior to the move nient ofthe die carriage.

Fig. 10 is a sectional elevation showing a part in detail hereinafter described. A represents the side frame of the machine, B'the. main driving shaft of said machine and C the crosshead or member which binds the two sides A together.

In carrying my invention into effect I 'make use of'a carriage 2 for the die or engraved plate 3, said carriage being of such formation that I may have the runner or antifriction bowls 2 u on which it is mounted, supported Within the guiding grooves 49 of the inclined guides l under such conditions that whenthey are in positi0n (as shown by Fig. 1') forgiving the inipression, saidicarriage 2 and the die?) which it supports, are supported by the cross head C which withstands the upward p essu're of the counter part when said impression is being taken. 'To enable the cross liead C to afford this support to the carriage Qand yet permit the early upwardniovement of said carriage, I form the lower edge of said crosshead C with a stop It and a higher part Zr, for the lower part 8 and the stop 6 respec tively on the carriage 2 to take against.

The impression is'given by a rising and falling plunger carrying a counterpart operated in any well known manner.

This carriage 2 is so shaped. and constructed that the runners 2 may operate within the groove at. of the guiding inclines 4 in order that after each impression the op. erating parts may carry such carriage 2 from the position shown inFig. l and full lines Fig. 4:, to more from its horizontal position and turnat the part b so as to travel impression.

lines Fig. 4. The inking of the die is effected by the messenger roller 6 carryng the ink from the feed roller 7 to the die 3;

Then the die 3 is moved from the printing position as hereinbefore described to the position shown in broken'lines Fig. 4, during its ascent of the inclined part of the guiding track or rail 4, its rinting or engraving surface is displayed to the attendant.

The taking of the die up the inclined track enables the operator to have a full view of the inking, scraping and wiping operations.

counters appropriate blades or scraping devices 8'fwhich remove the superflous ink from said diein such arma'nner that the ink thus removed may travel down the means of the crank pin 12 which is rotated about'the main shaft B, and to this'crank 12 is connected a rod 13 which actuates the operating lever 14 so that said lever 14 may, by the arm 15, cam 16 and spring arrangement 16 together with the connecting rod 17, operate the levers 18 which are pivoted at 0 thus the carriage 2, by being connected to the levers-18 (by connecting rods 19) is made to move as desired while the required dwell or rest, during the printing opera tions, is effected by the dwell orrest of the levers 18 which is brought about by the ac- 'tions of the arm 15, upon the yielding spring 16 and connecting rod 17, when the carriage 2 has reached the position shown. by Fig. 1. On reaching this position the carriage 2 is prevented from further movement towards the front of the machine by means of the stop piece 30 Which is fixed upon the, cross head C (see Figs. 2 and 10). This stop piece 30 arrests the carriage in the exact position for the die 3 to be brought immediately over thecounter part beneath, which is then raised to take the when the carriage 2 has reached the stop piece 30 as stated, the spring 16 will be compressed by the further motions of the lever 15 and this compression enables the spring to retain the carriage 2 in position against the stop piece 30 although the levers -15 continues to complete its full. movement.v Byarranging the die carriage 2 to travel up the inclined After the inking operations have been, performed, on the die 3 descending it en by the vertical guiding rods 21, 21 u n which rods are mounted the iel mg spr ngs 22, 22 These arms 20, 2 carry a frame 23 which is detachable b reason of the slots d made in the projectmg. ends illustrated by F igs.' and 6, taking over the heads of pins 7' carried b the arms 20 while the front edge of sai frame 23 is held in position preferably by spring clips 24 although other devices may be made use of for said purpose, thus a large or smaller paper or other mask may be mounted on the frame 23' to meet the requirements of larger or smaller dies as will be understood.

The varied movements of the arms 20, 20',

and the parts which they carry, are obtained from the rotary shaft 25 which derives its motion from the shaft B through any appropriate gearing. On this shaft 25 is fixed a cam 26 which ac-tuates a lever 27 fixed to the cross shaft 28. Also fixed to the cross shaft 28 are the lever arms 29, 29, which are arranged to have their outer ends to press upon the upper ends of the rods 21, 21 respectively. y these means the descending movements of the arms 20, 20 are effected by the arms 29, 29' while their ascent is brought about by the recoil of the spring 22, 22. Such being the nature and object of my said invention, what I claim 1. In a die printing machine, a carriagefll die mounted upon said carriage face downward, guiding rails for said carriage, said rails having certain parts arranged to hold the carriage in the horizontal plane and the other parts at an angle to said horizontal plane, connecting rods and pendant levers for operating said carriage, a connectin rod coupled to said pendant levers, a yie ding spring on said connecting rod, a cam lever for operating said connecting rod and means for transmitting motion to said cam lever.

2. In a die printing machine, a die mounted upon a carriage face downwards, said carriage, rails for guiding and retaining said carriage in horizontal and inclined paths, a frame for stripping the printed sheet from the die, rods for supporting said frame, springs mounted upon said rods, levers for actuating said rods, a cross shaft upon which said levers are mounted, another lever mounted on said shaft for operating same and a cam for operating said lever.

3. In a die printing machine, a die, a

carriage upon which said die is mounted face downwards, guiding rails along which the carriage is moved, said rails having horizontal portions and portions at an angle thereto, connecting rods and lever arms for operating said carriage, said le ver arms being mounted so that their outer ends may follow the path described, and lever and eam mechanism for operating said lever 10 arms.

4:. In a die printing machine, a die mounted face downwards, a carriage for said die having its upper surface of step like formation, framework formed to receive said step like shape of carriage, horizontal and inclined guiding rails along which said carriage is moved, and means for operating said carriage.

FRED WAITE.

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