US1825945A - Embossing and printing press - Google Patents

Description

Oct. 6, 1931. w. c.. FELLOWS EMBOSSING AND PRINTING PRESS Filed Oct. 30, 1928 3 Sheets-$heet l for Wa/fer fFel/ou/s Home y.

FIG. 1

Oct. 6, 1931. w. c. FELLOWS EMBOSSING AND PRINTING PRESS Filed Oct. 50, 1928 3 Sheets-Sheet 2 V Invenfor- 7.: 1 Wa/fer 6'. Fe//ou/s.

M Horn ey.

Oct. 6, 1931. w. c. FELLOWS EMBOSSING AND PRINTING PRESS Filed Oct. 30, 1928 5 Sheets-Sheet 3 Patented Oct. 6, 1931 W s TE WALTER-G. FELLOWS, 0F PHILADELPHIA, PENNSYLVANIA, ASSIGNORT'O C R. CARVER PATENT FWE',

COMPANY, A CORPORATION OF" PENNSYLVANIA nMBossINe nnnrnnvmrne nnnss Application filed 0ctobe1 30, 1928. S'eria1No. 3 15,973.

Embossing and printing presses, some-- times designated asstainping presses, have usually been constructed WllJ-h' a reciprocatlun er'an'd b means of: which the aoer P. e

sheet is pressed downward upon the die, the

printing impression being imparted to the sheet while in an inverted posltlon. This procedure reqmres care in handling the printed sheets to avoid smudging, and also requires them to be lnverted after being;

Withdrawn from the" action of the die and plunger:

' The-object of my present invention'is to" enable the'printing to be performed upon theupper surface of the sheet andin full view whenthe sheet is withdrawn from the die and plunger and removed to the receiving table" without the necessity of inyerting it, thereby simplifying" the manual labor,

avoidingdanger ofsmudging the printed sheets, and permitting ncreased capacity to the press.

In I the upper portion of the. housing with area ate shaped guides" and combine" therewith a slide equippedwith' a die carrying chuck. the f latter arranged upon the underside of the slide; the said arcuate shaped guid'esextending from the rear of the. press forward to a. position between a stationaryinverted bed ranged in alinementrwith the bed and below the guides, the said reciprocating plunger being suitably operated, as by toggle and cam mechanism, in unison with suitable power. applying means which position the 'diecarrying slide in definite position above the plunger preliminary to the upward thrust p v i tom in hubs 4a and also clamped to the upper thereof. p My invention further comprlses in a press the chuck carrying slide is reciprocated' through the CUIVQClQgIHClQS and is automatcarrying out my "invention, I provide i and a vertically reciprocableplunger arof: the character described, means whereby' the-slide and die ea ned thereby relatively h P ng during the printing or embossing operation.

. Further improvements comprised in, my

invention relate to-speciali means for inking;

the inverted" die in thebustody of the slide,-

the scraping; or removal of the surplus ink from thesuriace of the die, and the wiping of the, surfaceof the die before the printing impressmn, said operations taking place'successlvely during the advanclng travel of the" slide and the die carried thereby through the arcuate shaped guides.

My invention also comprehends other and special features of improvements which, to-' gether with those above enumerated, are

fully described hereinafter and more particularly'pointed out in the claims.

Referring tothe'dra'wings Fig. 1 is a rear elevation of a printingpress embodying my improvements; Fig. 2 is a vertical section of the same taken on line 2 2 of Fig. 1; 3 is'a perspective view of a portion of the adjusting means for controlling the degree of pressure applied during the printing operation Fig. 4 is a plan view ofth'e same, and

partly in section taken on line 4 4 of Fig. 2 V

Fig. 5 is'a' rearview'of thewipermechanism separated from the press'; Fig, 6 is a transverse vertical section of thesame taken on v line 6 -6 of Fig. 5; and F 7 is a perspec tive view illustrating the locking means for holdingthe' die carrying slide against move-- ment during the embossing. or printing operation, e v r V The main side frames or housings of the machine are indicated at 2 and arefunited at port'ion of said base frame by clamping means 456; The upper bed frameS is pro-. vided' at its sides with heavy clamping hubs- 364 which fit over the aforesaid bolts 4, and

when adjusted to proper positions upon the bolts, the upward thrust during the printing action'is resisted by nuts 40 upon the upper The lower. base: frame 5 is provided with upwardly ex,-

ends of the bolts. This provides a two-part front structure, the upper of which includes the bed 6 which receives the upward thrust of the die carriage or slide 7 during the printin or embossing operation, whereas the loweried frame is provided with the vertically reciprocating plunger 8 and the toggle mechanism 9 b which it is reciprocated. These upper an lower front frame portions 3 and 5, while bolted together in definite relative positions one above the other, are both secured to the side frames 2, 2, by cap screws indicated in dotted lines at 20 in Fig. 1.

10 are rearwardly extending arcuate grooved guides, the lower forward ends of which extend to the rear portions of the bed 6 and in which the slide 7 is guided, whereby it may assume a position directly under the bed 6 or various positions to the rear of sa d had during its reciprocation, as indicated in dotted lines in 2. These guides, preferabl are arc-shaped about the axis of the rec aft 11 journaled in suitable bearings 110 on the upper portion of the front frame 3. Secured to the rockshaft 11 is an arm 12 whose lower end terminates a short distance from the guides 10. The slide 7 is provided with lateral curved guide ortions 7a which snugly fit the curved gui e grooves of the arcuate guides 10 and provide means whereby said slide is accurately guided during its rearward and forward reciprocations under the action of the arm 12. The slide 7 is connected with the lower end of the arm 12 by means of a toggle comprising links 13 and 14 hinged together at 15. The link 14 is hinged to the arm 12 at 16 and the link 13 is hinged to the slide 7 at 17. The toggle has its hinged portion provided on each side with rollers 15a which are guided in arcuate guides 18 of less radius than the arcuate guides 10 for the slide, and which guides 18 also have a curvature with the axis of the rockshaft 11 as a center. The forward ends of the guides 18 terminate in a reverse curved portion 18a, the extreme forward end of which is shaped with a curvature concentric with the axis of the hinge 17 forming the connection between the link 13 and the slide 7. The result of this connection and the shape of these guides is, that when the slide 7 is in its forward or printin position, the link 13 is free to swing upwar y about the hinge 17 without moving the slide during the final forward swinging of the arm 12, but which, during the rearward swinging of said arm, will permit the toggle links 13 and 14 to straighten out preliminary to moving the slide backward as indicated in dotted lines in Fig. 2. During the main oscillations of the arm 12, the slide 7 is reciprocated in its arcuate guides 10, but in the final forward movement of the arm 12 and when the toggle assumes the position indicated in Fi 2, the portion 13 of said toggle operates to ock the slide in its printing position and retain it so locked during the actual printing or embossing. This locking may e performed in any suitable manner, but the means shown has been found satisfactory in practice.

The particular locking mechanism shown comprises a stud 19 fixedly secured to one of the guide frames 18 or other fixed part of the machine and having a horizontal fiattened portion 19a, and a hinge shaft 17 provided with a head 20 having two curved wing portions 20a which in locking position enclose etween them the flattened portion 19a of the stud (Figs. 2 and 7), and in that manner prevent the slide from having any movement forward or backward, it being understood that the shaft 17 is secured to and positively rocked with the link 13 of the toggle. \Vhen the arm 12 is moved rearwardly, the first action is to cause the toggle link 13 to swing rearwardly about the axis of the shaft 17, and in so doing, the shaft rotates the head 20 and moves the wing portions 20a to positions above and below the flattened portion 19a of the stud, with the result that the locking relation therewith has been put out of action and the continued rearward motion of the arm 12 through the straightened toggle is free to move the slide 7 rearwardly. In this manner, the slide is free to move at all times, except when in its forward position as indicated in Fi 2, and at which time it is definitely locke The arrangement of the arcuate slide guides and the concentric or tram guides for the rollers of the toggle have advantages in the following particulars: The slide guides, being on a curve concentric with the axis of the rockshaft 11, will cause the slide and its die to move backward and upward in such a manner as to bring the plane of the die to approximately thereby allowing the op erator to clean the die more readily and also to examine the same from time to time in case of defects. Moreover, the guide rollers 15a of. the toggle are caused to travel in the guides 18 in such a manner as to move through said guides with the least possible resistance, the thrust or pull upon the guide rollers being in a line substantially tangent to the curvature of the guide. Furthermore, the couple through the toggle is such that the slide 7 is caused to press upon the up )er flange of the arcuate guide 10 during its ackward movement, due to the tendency of the pull through the toggle to straighten the same and lift the slide. The use of the curved guides 18 in association with the arcuate guides 10, insures the toggle links 13 and 14 being maintained in an alinement to cause the slide to be roperly reciprocated to bring the die and slide back to a horizontal position and up to a registered point, wherein it is locked, and wherein further, a steady smooth motion to the slide in the course of its travel is definitely assured.

I Thediezcarr the, wedgetobe moved horizontally in either GZE-g-iof': the: wedge.

view ot the pull of the slide: i111 itszba'ckward movement,causingritsgnides'hrto press against the: upper inward. flange of the; ar-

itsn'ear'and undersidehy a curved cap. plate 11%,. the latter being: detachably secured in place: by screws...

i I g slide tightly or bind in. the: guide; grooves of the tended to accurately guide the. slide during the act oflinlring,.scrapingand wiping of the.

die, and insuring the proper positioning of the slide-when itgreachesthe horizontal'bed 6.

21 represents the. die: chuck. secured to the underside of and movablewiththeslide 7 and: carniessthe. diev 22 which may bersecu-re d. in the chuck in: any of the usual manner-s. The printingsurface; of the-die is directed downward. and cooperates: with the. counter block 23. carried. at the, upper end", of the: reciprocatinggplunger 8...

The: reciprocating plunger isa box-like structure movable in vertical guides8w and 2%; upon. which the counter block. 23' is, di-

rectly; positioned, and by which it ismoved.

The plunger block 24. is. connected to the plunger'S: by meansof a horizontally adjustable wedge 25,.the adjustment of whichp'rovides the: desired printing pressure. Thewedgeblock has; lateralzfia-nges 25w which fit.

into grooves 25?) in the plungerblock 24-, and

the wedge has also on. its lower part flanges 1125c: whichfit into corresponding grooves 256 in the plunger& Int-his manner, the plunger,.the wedgeand;theplunger block maintain their connection while: permitting the latter toberaised' and loweredto-a slight, extent due ltotlie lateraliadjustment ofthe wedge.

To adjust the wedge of the plunger the following construction, best shown. in Figs".

2,. 3- and- 4-,. is. employed. 26. is; a. frame or bracket attached to the plunger'block 2i and, therefore. movable; vertically with it'. This bracket. in. addition to: supporting, the middle table 27 immediately in front ofv the counter blockiand die when in printing position, alsohasjournaled' in it, two adjusting.

Zserew shafts- 28,.the. rotation; of which causes direction so as-to; raise or lower the plunger block and its'counter block, accordingto the diuectiom of rotation of the screws. These.

gears, simultaneously'rotate the. screw shafts and in that manner secure isso shaped that. during: the printing-l operationv it; rests flatv against the bed. 6 and at this time the; lateral. guide: portions 7a; of the. slide. should not. fit

" serews areprovided' with gears. 29 which; mesh with a gear 3.0. on a central shaft 31.. Thesnotation'of theshaft' 31 will, .throughthe.

the adjustment.

32 a universally jointed operating spin-- dle for rotating the central? shaft. and. is prorvided. with. capacity to control the: central, shaft. from. a. point. to: one side of the-plunger- In. presses .of this character, the.- table portion in front: of the: plungerris made. in: threeparts, shown in dotted: lines at. 2700,27; and 27b, the/middle part 27; ordinarily being" removable. In Fig. 4,. I. have shown: the jointed spindle and operating hand wheel: projecting directly front of the plunger, as it would be if the bracket were securedv to the bottom of the middle or removable part; of the table. Instead of securing the bracket; to the middle table, I. prefer toatta'ch itto either one. of the lateral tables=27a or 27b,zand by illustrationofisuclr use, I have shown, in dotted linesin Fig; 4, the universally jointed spindle 32' extending. obliquely from the shaft 31. and connecting with: the adjustable hand. wheel 3-1 journal'ed inthe bracket 33 attached. tov the: fixed. side table:

In this manner, the handoperated; means for adjusting the wedge 25 may be: definitely positioned upon the. stationary table portion 27a of the machine, while the central. shaft 31'. may be rotated. for adjusting the wedge. Moreover, this construction maintains a: con.- stantly' operative means for adjusting the wedge and without interference with the removal of the center table: 27? when closer access is required to the; front of the machine;

It is manifest that with this construction, the

extent of the impression pressure may be ace curately' adjusted to suit the charactergof printing: and the material employed. upon? which the embossing or. printing? is per.- formed; and thisadjustment, whether-to increase the-pressure or decrease the-same, may be adjusted while the machine is inoperating. condition, and: if. desired, during theactual' performance of the printing or embossing operationi.

Furthermore, as the plunger is reciprocated by the toggle 9, it, is manifest that the wedge 25 'willbe reciprocated with it, and this willbe. possible due to. the fact thatthe universal connection 32 is flexible so as to. permit such reciprocations without disturb-- ing the bracket 33 or the hand wheel journaled therein, and which bracket is. 6.011% nectedtoastatibnary part of the machine. By means. of this construction, the upper levelof the central table 21 may be arranged on exact level with thecount'er andcounter block 23, so that the paper may be readily fed into position, notwithstanding that the counter blockis vertically reciprocated under the action of the toggle-9. 1 i

Elie toggle 9-may beoff any usual construction. As shown, it includes an oscii la-ting" member 9a which is hinged at 9b to a frame 35 sliding uponsabox 36 j'ournaled upon-the.

a cam38 which co-acts with rollers 39 and 40 to reciprocate the frame 35 and oscillating member 9a of the toggle. Thebull shaft 37 I is geared to operate in unison with the mechanism which reciprocates the slide and die carried thereby. As indicated, the bull shaft i8 provided with a bull gear 41 which is driven by a pinion 42 of a shaft 43, the latter being, in turn, driven by speed reducing gears 44 and m a. power shaft 45 having a belt wheel or other means for driving it, as is employed in presses of this character.

47 isarockshaftat the. rear of the machine and is rocked by an arm 48 having at its free "end a hook shaped link 49 adapted to make a detachable connection with a crank pin 50 on the bullgear. In this manner, the rockshaft 47 is oscillated in timed relation with the toggle which operates the plunger. The rockshaft 47 is provided with a short arm 51 having a link connection 52 which extends upwardly and hinged to an arm 53 on the rockshaft 11 to which the arm 12 is secured.

and by which it is oscillated for reciprocating the slide and the die carried thereby. By these means, the movement of the slide 7 and the vertically adjustable plunger 8 and its operating means are caused to operate. slmultaneously in timed relation. i The rts as shown in Fig. 2, are just in the mi dle of making a printing impression and wherein the slide 7 with its attached die 22 receives the upward thrust of the plunger 8 with its counter plate 23 under the action "of the toggle mechanism 9.

In addition to the construction and operation alreadv described, there are three additional functions to be performed. namely. the application of ink to the die, scrapingthe sur- 'plusink from the die and returning it to the fount, and the wiping of the printing surface of the die before the act of printing. I will consider these three functions and the means employed for carrying them into effect.

54 is the ink fount and 55 is the ink applying roller for distributing the ink to the surface of the die 22. The inking roll 55 is journaled in the free end of oscillating arms .or frames 56 secured to a rockshaft and during the rocking of which the inking roll swings from the fount to contact with the die plate, as shown in dotted lines (Fig. 2) and backagain to the ink well or lount. The cscillation of the rockshaft 57 for actuating the ink roll and the oscillation of the rockshaft 11 for reciprocating the slide and its die are caused to operate in timed relation whereby the ink is applied to the die at or about the fltime the same begins its forward travel.

As a means for oscillating the rockshaft 57, I provide an arm 58 secured thereto which connects by a link 59 with a pivoted lever (30 adapted to be actuated by a cam 61 secured to and rotating with the bull shaft 37, and

whereby the rockshaft 57 has one oscillation to each revolution of the bull shaft.

Referring now to the scraper means for removing the surplus ink from the inked die and returning it to the ink fount or well, I pro vide the following construction. 62 is an oscillating frame journaled upon a shaft 63, the frame having upwardly projecting sides 64 and surface plates between the side edges, one of which, 65, projects upwardly for contact with the inked die during its advancing movement as indicated in Fig. 2, and the other of which plates, 66, extends rearwardly in the form of a shallow gutter for deliverin r the surplus ink back into the ink well or ount 9;

The extent of the oscillations of the scraper frame 62 is limited by a frame 67 extending from a fixed part of the machine and limiting the movement of the oscillating frame (12 to :1 very small extent, the purpose being to normally hold the scraper blade in a position which would lightly scrape the surface of the die when the slide was moving forward into printing position, and at the same time to limit the extent of movement away from the die plate so as to be out of contact with it when the slide and the plate is being moved rearwardly to receive ink. A very slight movement, therefore, will suffice for the needs of the frame 62.

A coil spring 68 extending around the shaft 63 has one end fastened to the main frame of the machine and the other end fastened to the scraper frame 62 for normally oscillating the frame 69 and scraper to bring the latter into contact with the moving printing die when not otherwise held out of such contact by means now to be described.

The shaft (33 to which the scraper frame 62 is secured is journaled in the side frames or housings 2 and has at one end an arm 69 having a block 70 pivoted thereto and through which a rod 71 slidingly extends with a spring 72 interposed between the end of the rod and the said pivoted block. The other end of the rod 71 is hinged to an arm 73 secured to the rockshaft 57, heretofore referred to in connection with the movements of the inking roll.

It will now be understood that when the inking roll is moved to its dotted position in Fig. 2, the rocking of the shaft 57 causes the rod 71 to be pulled longitudinally and thereby, through the spring 72, cause the scraper frame (32 to be oscillated (overcoming the action of the spring (38) and causing the scraper to be moved downward to permit the rearward travel of the slide 7 and printing die 22. \Vhen the advancing movement of the slide and its printing plate takes place and after the ink has been applied to the printing plate, the rockshaft 57 is given a movement under the action of cam 61, with the result that the scraper frame 62 is allowed to oscillate until stopped by the abut "0 nient 67, and is then in position to enable its scraper to provide .a scraping action upon the surface of the die to remove the surplus ink, sa'id scraping action being a yielding one under the influence of the coil spring 618 before referred to, and during that action, it is out of contact with the abutment 67.

From these-explanations, it will be under stood that the inking device and the scrapdeviee are under the control of the same general actuating means and hence in timed relation. Aside from the oscillating action of the scraper, it has a traversing mot-ion laterally with" respect to the direction of travel-of the printing die. In other words, the shaft 63 is given .a slight longitudinal re :ciprocation to improve the scraping action-of the scraper blade 65 and this reciprocation'is accomplished by a bell crank 7i acting upon the shaft and, in turn, oscillated by a. pitman rod pivoted at its lower end to a crank 76 which is driven Joya worm wheel 77 meshing with a Worm 78 on'the power shaft 45, as in- I .dicazted in Fig. 1. r a

As-zbefore stated, the "printing or embossing .die 22 must have its surface wiped clean after the surplus ink is scraped off, andthis wiping action is performed :by the following means. 7-9 is the wiper bracket and is secured rto arockshaft l8 ournaled in the main frameyand below the arcuate guides for the reciprocating.slide. The said shaft :80is provided with a crank arm 81 to whichis pivoted a link 82. the lower-end of which is hinged to a pivoted arm 83, said arm 83 having a roller .84 extending into a cam groove .85, of a cam :86 secured to the bull shaft 37.. this means, the proper oscillating motion is giyen to the wiper bracket 7.9. ,Hinged .tothe upper partof the bracket .79 is a wiper plate .87, said wiper plate .se-

cured tora sha-ft 88 -journaledin the bracket 7.9 as clearly shown in Figs. .5 .and 6.. The curved face 87a of thepivoted wiping plate 87 is eccentric to the shafts 80 and 88, but the eccentricity .of said surface with respect to :the :rockshaf-t 80 may be adiustedso as to be increased on-decreased according to requirements. The means tor .eafecting such adjustment wiil be best understood by refer- ;ence :to Figs. hand 6.

The shaft 88 which carriers the wiping plate 87-is provided with a' segmentalrack 89 which is actuated by a worm -90 to change the eccentricity of the wiper plate in respect ,toithe rockshaft 80. The worm 90 is-extended intoia shaft T91 journale'd in bearings 92 on the bracket .79, and said shaft 91 is provided witihe worm wheel 593 which is adjusted by a worm 945 having a shaft95 journaled in bearings 96-,secured1tothebracket 79 and adapted to be adjusted by .asuitable key. In this mannenthe eccentric wipingplate 87 may be given slight and ac urate zfldj ustments and at the same time is positively held upon the bracket 79 in its adjusted positions. 1 The eccentric wiping plate 87 is covered or faced with :a blanket or padded portion 97 which may be clamped at one end of the wiping surface and stretched at the other end by .a ratchet and pawl take-up shaft 99 arranged under the wiping plate at the other end. The position of this wiping mechanism on the press and in respect to the path .of the reciprocating slide and die is clearly indicatedin Fig. 2.

1-00 represents the web of wiping paper which is led from the roll 101 at the rear of the machine, thence between feed rolls 102,

the opposite direction to the movement of the die 22v when the .die is moving forward toward its printing position, and the Oscillationiof the eccentric surface of the wiper plate about the axis oi the rockshaftSO keeps bring.-

fresh surfaces of the paper in contact with the inked surface oftliedieso that a perfoot and clean wiping results.

It will be understood that the arcuate shaped guides 10 cause the slide plate and-the die carried thereby to constantly change the ;i;

presentation of the inked surface of the die as 'moves forward, and the eccentricity of the wiping plate and surface .of the wiper compensate for this changing angle or inclination oft-he inked die as it-moves forward.

This willbe understood by referring to Fig. 21and noting that thejfor-ward-end ofthe die 22 is about to come into contact with the rear.- wa-rd endofthe eccentric wiping surface, and

with t'he further understanding that .as the die moves torward, it tends to gradually ap- I preach a horizontal alinement, and wherein the printing surface gradually recedes vfrom theaxis of the rocks-bait 80, and which :receding is compensated forbythe advancing wipingsurface due to the eccentricity of the wiping plate. It will be further understood that when the slide and die is moving rearwardly, the wiper is out of .contactwith the die and will retain this inactive position (Fig. .2) while the bull shaft 37 makes approximately three-quarters of a revolution. The oscillation-of {the wiper in .a rearw-ard'di-rection only takes place when the slide and die are mov ing forward over it, and thereafterthe Wiper returns to its initial position shown in Fig. 2, while the slide and die performs the printing operation and moves rearwardly for reinking. and advancing again to the left hand dotted position shown in ,Fig. 2. V

It will now be apparent that I have devised a novel and useful construction which embodies the features of advantage enumerated as desirable, and while I have in the present instance shown and described the preferred embodiment thereof which has been found in practice to give satisfactory and reliable results, it is to be understood that I do not restrict myself to the details as the same are susceptible of modification in various particulars, without departing from the spirit or scope of the invention.

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

1. In a press of the character stated, the combination of vertical guiding means, a stationary head above the said guiding means and formed on its underside with a bed, rearwardly extending arcuate shaped guides terminating at the forward ends in the head adjacent to the bed and having the rearward portions curved upwardly, a die carrying slide having lateral guides adapted to the arcuate shaped guides whereby the slide may be reciprocated from a position immediately below the head and bed thereof toa rearward position, power means for reciprocating the slide, a vertically reciprocating plunger guided in the vertical guides, and power means for reciprocating the plunger connected in timed relation with the power means for reciprocating the slide.

2. The invention according to claim 1, wherein further. the power means for reciprocating the slide comprises a rockshaft located at substantially the center of curvature of the rearwardly extending arcuate shaped guides, an oscillating arm secured to the rockshaft and having its free end extended to ward and close to the arcuate shaped guides, a jointed connection between the movable end of the arm and the slide, and means for holding the jointed connection in an extended manner while reciprocating the slide and releasing it during the final motion of the arm whereby said final motion is permitted without further movement to the slide.

3. The invention according to claim 1, wherein further. locking means are provided for locking the slide in its printing position between the bed and the plunger, and means actuated by the power means which reciprocates the slide for operating the locking means to put it into locking position when the slide has reached the end of its forward movement.

4. The invention according to claim 1, wherein the power means includes an oscillating arm and locking means for holding the slide against movement when in inverted printing position, said locking means comprising a rocking arm hinged to the slide and having a locking portion making locking engagement with a fixed portion of the press,

a link connection between the free end of the rocking arm and the free end of the oscillating arm, and a guiding means for holding the rocking arm and link in substantial alinement during the reciprocation of the slide,

said guiding means shaped to permit the jointed connection between the rocking arm and link to fold after the slide has been moved to its printing position and during the final movement of the oscillating arm in bringing the locking means into locked position.

5. The invention according to claim 1, wherein the plunger is provided with means for adjusting the printing pressure, said means comprising a box-like plunger body, an upper plunger block carrying a counter block. a wedge engaging the body and plunger block for adjusting the latter vertically with respect to the former. two parallel screw shafts engaging the adjustable wedge for adjusting it, a central shaft intermediate of the screw threaded shafts and geared to each of them. a bracket at a distance from the wedge and provided with av manually adjustable shaft and wheel. and a universally jointed connection between the said shaft and wheel and the intermediate shaft which is geared to the screw threaded shafts, whereby said manually adjustable wheel and shaft may be arranged out of alinement with the geared shaft while maintaining its operative relation thereto.

6. The invention according to claim 1, wherein further, means are provided for distributing ink upon the under or printing surface of the die carried with the slide, an oscillating wiper pivoted on a horizontal axis and having an eccentrically arranged and upwardly presented wiping surface. means for oscillating the wiper. and a traveling web of wiping material intermittentlv fed over its surface, said wiper positioned to wipe the gownwardly presented inked surface of the V18.

7. The invention according to claim 1, wherein further, means are provided for distributing ink upon the under or printing surface of the die carried with the slide. an os cillating wiper pivoted on a horizontal axis and having an eccentrically arranged and upwardly presented wiping surface. means for oscillating the wiper, and a traveling web of wiping material intermittently fed over its surface. said wiper positioned to wipe the downwardly presented inked surface of the die, and wherein also manually adjustable means are provided for modifying the extent of the eccentricity of the wiping surface of the wiper.

8. The invention according to claim 1, wherein further, an ink fonnt and means are provided for distributing ink to the die and removing the surplus ink therefrom prior to having also extending upwardly forward of the shaft a scraper blade arranged to scrape the under surface of the traveling die when advancing to printing position and said scraper further having an extension rearward of the shaft and obliquely downward for returning the surplus ink to the ink fount by gravity, spring devices for causing the scraping of the surplus ink to be performed under a yielding pressure by the scraper blade upon the die, and positively acting means to oscillate the scraper for moving it out of scraping action when the slide and die are moving rearwardly into inking position.

9. The invention according to claim 1, wherein further, an ink fount and means are provided for distributing ink to the die and removing the surplus ink therefrom prior to the printing operation, said means for remov ing the surplus ink including a scraper having a pivoted frame arranged for oscillation upon a horizontal transverse shaft and having also extending upwardly forward of the shaft a scraper blade arranged to scrape the under surface of the traveling die when advancing to printing position and said scraper further having an extension rearward of the shaft and obliquely downward for returning the surplus ink to the ink fount by gravity, spring devices for causing the scraping of the surplus ink to be performed under a yielding pressure by the scraper blade upon the die, and positively acting means to oscillate the scraper for moving it out of scraping action when the slide and die are moving rearwardly into inking position, and wherein also the oscillating scraper is combined with power means for causing the scraper bladev to be slowly traversed back and forth longitudinally of its axis of oscillation during contact with the die plate.

10. The invention according to claim 1, wherein further, the arcuate shaped guides for guiding the slide are each formed of an angle shape incross section with the integral angular portions closing the top and outer lateral sides of the guides, and removable curved cap plates are secured to the outer lateral side portions of the guides to hold the guiding portions of the slide from disengage ment with the guides.

11. The invention according to claim 1, wherein the plunger is provided with adjustable devices moving with the plunger for adjusting the level of its impression surface relatively to the plunger body for varying the pressure of the impression, a removable feeding table in front of the plunger, hand operable means supported at one side of the plunger and independent 10f the :table, and adjust- :able power. transmitting means connecting (the hand operable means with theiadjustable devices for adj ustin 'the "level of the impres sion surface.

12. In a press of thechanacterastated, the

combination of a vertical guiding means, a stationary head abo-veithersaid guiding means and formed on its underside with a bed, rearwardly extending guides terminating at their forward ends in the head adjacent to the bed, a die carrying slide movable in the guides and presenting the face of the die in a downward direction above the vertical guiding means, a plunger with adjustable devices moving with the plunger for adjusting the level of'its impression surface relatively to the plunger body for varying the pressure of the impression, hand operable means supported one end mechanically connected with the:

screw to rotate it and at the other end with the hand operable means.

14. In a press of the character stated, the combination of a reciprocatingdie carying means and die therefor, means for applying ink to the die surface, a scraper pivoted on a transverse axis and adapted to scrape the surplus ink from the die surface, a spring actuated means for moving the scraper into yielding contact with the surface of the die when moving in one direction, positively acting means for moving the means for applying ink to the die surface and for alternately therewith moving the scraper out of scraping contact with the die surface.

15. In a press of the character stated, the combination of a recriprocating die carrying means and die therefor, means for applying ink to the die surface, a scraper pivoted on a transverse axis and adapted to scrape the surplus ink from the die surface, said scraping action taking place alternately and subsequently to the application of ink to the die surface, a stop, continuously acting spring means for normally moving the scraper yieldingly against the stop to enable the scraper to yieldingly make scraping contact with the surface of the die when said die is moving in at one side of the plunger and universally :3

the level of the direction toward its printing position, 3 5

means for applying power to the scraper for positively moving it away from the stop and out of scraping relation with the surface of the die when said die is moving in the other direction away from its printing position,

said means providing a yielding connection with the scraper whereby it may hold the scraper out of scraping position during the period of applying ink to the die surface.

In testimony of which invention, I hereunto set my hand.

WALTER. C. FELLOWS.

Images