US580831A - Embossing-press - Google Patents

Description

(No Model.) V 2 Sheets-SheetJ 1.

C. T. PAGKBR 8u G. W. SWIFT.

EMBOSSING PRESS.

No. 580.831. gatented Apr. 13, 1897.

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C. T.. PACKER`8v G. W. SWIFT. EMBOSSING PRESS.

' Patented Apu-13, 1897.

(No Model.)

LUITNE 5.5E2E v INVENTE UNITED STATES PATENT OFFICE.-

OHARLES T. PAOKER AND GEORGE W. SWIFT, OF PHILADELPHIA, PENNSYLVANIA.

EMBossmG-PRESS.

SPECIFICATION forming part of Letters Patent No'. 580,831, dated April 13, 1897.

Application filed April 17, 1894.

Serial No. 507,862. (No model.)

T0 ctZZ whom, it muy concern,.-

Be it known `that we, CHARLES T. PACKER and GEORGE W. SWIFT, citizens of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Embossing-Presses, of which the following is a specification.

Our invention has relation to that class of printing machinery known to the trade as embossing-presses.

Machines of this class generally comprise a suitable stamp, a corresponding die and a sliding table or support therefor, an inking roller or rollers, and a wi pin g-plate for the rcmoval-of surplus ink from said die 5 and itis the obj ect of our invention to provide certain new and useful improvements in the mechan ism whereby these devices are respectively operated. v

Ordinarily the die-supporting table is actuated by a rotary cam, which, owing to the extent of movement required of said table, is quite large, adding much weight to the machine and requiring considerable power for its operation alone, and when worn away to any extent prevents the necessary eXactness of registry of the stamp and die, besides being productive of considerable jar and clatter. Furthermore, the disconnection of this cam with the die-operating mechanism forsecuring a plurality of impressions when it is desired to dispense with the inking of the die between each impression, as, for instance,

in the operation of embossing` without ink, is not readily attainable.

The inking roller or rollers of this kind of machine are also in continual operation and when not performing their prescribed functions are very apt to and do throw the ink around and spatter the adjacent parts of t-he machine while the wipingfplate is in a fixed position and the die upon its return movement depressed to avoid contact therewith, rendering the assumption by said die of t-he same operative position relatively to the stamp quite uncertain.

Our invention contemplates the obviation of these objections through the provision of an embossing-press or similar machine the inking-rollers of which are adapted for rotaing operation; a friction-brake or stop which operates on and effects the stoppage of the .table at the same place invariably without jarring the same, and acast-off link between the stamp and table operating mechanisms, whereby the latter may be instantly disconnected from the former and the table rendered inactive altogether, all as hereinafter more fully described and claimed, and as illustrated in the accompanying drawings, which represent an embossing-press embodying a good form of our improvements, and in which- Figure l is a side elevation, partly broken away and in section, of our improved machine; and Fig. 2, an end view of the same. Fig. 3 is an elevation of the wiping-plate detached. Fig. 4. is a perspective view of the frictionbrake or stop.

The stamp A of this machine and its operating mechanism are of ordinary construction, said stamp being, as usual, actuated by a cam b on the shaft B through a yoke O, the trunnionsc of which are journaled in boxes c c2 on the upper edges of the sides D D of the frame of the machine, the connection c3, and the toggle-levers a ct', with which it is operatively connected. So also are the die E, the ink-fountain F, and the paper-feeding devices, the latter, as ordinarily, comprising a pair of rotary cones whose shafts or spindles ga g3 are journaled in suitable bearings in said frame and in the arm d, supported thereby, motion being imparted to shaft g2 in one direction of movement of the table H through a gear-wheel G, provided with a pawl g4 for engagement with a ratchet g5 thereon and meshing with a rack h on said table, such motion being communicated to cone g through a link belt or IOO chain ge, and the spindle thereof adapted for reception of one end of the paper as, the speed with which the same is unwound from the roll X on shaft cZ/, supported by brackets CZ2, being governed by the position of the belt or chain on the respective cones.

The main or driving shaft I, which has its bearings in boXes t' t" on the sides D D' of the upper part of the frame of the machine, has at one end a driving-pulley I and near its other end a pinion i2, and terminates thereat in a fly-wheel l2, said pinion meshing with a gear-Wheel K on one end of rshaft Zt, and the pinion 7c on the other end meshing,r with a .crank-gear B on the cam-shaft B. Now in lieu of connecting the rod or pitman B2, which at its upper end Z9 is connected with said crank-gear, at its lower end with a cam, as heretofore, such rod or pitman is of such length as to permit of the journaling of its end b2 on a pin Z in lugs Z' Z2 in the outer end of a rock-arm L, the rock-shaft L', which supports this arm, having its bearings in the lower parts of the sides D2 D2 of the base of the frame and having thereon a centrallylocated rock-arm L2 at or about right angles with the rock-arm first mentioned, a pin Z3 in lugs Z4 Z5 on the end of arm L2 being adapted for reception of the correspondinglynotched portion m of the cast-off link or lever M, the outer end of which is formed into a handle m and the inner end m2forked, the lugs m3 m4 thereof straddling the lever N at or about its center and having openings for the pin or bolt n, upon which such lugs are journaled. Lever N at its lower end is secured on the shaft N/, which is supported in lugs n on the lower edges of the sides D2 D3 of the base of the frame and at its upper end n2 Vis forked and provided with a pin n2, upon which is journaled an end 0 of section 0' of the double link or connection O, section 02 of the same being journaled on a pin h in lugs h2 h2 on the underside of the table H and the respective sections united by a transverse rod o3, which passes through the adjacent ends of said sections and 4has at each end a roller o4 o5, the opposite inner sides of the base of the frame having each a suitablylocated cam-slot CZ Z2 for reception of said rollers, which slots, as shown clearly in Fig. l, are for the most part straight, but at their forward ends are curved downwardly at a radius equal to the distance between the centers of pin h and rod 03,. the purpose of which will presently appear.

One of the ways H/ H2 in which the table H slides has secured thereto by screws h4 a cleat h5, which at its outer end overhangs the path of said table and by a screw h6 adjustably supports a friction-block 717 or brake, of

rawhide or other elastic material, the pressure of which upon said table being regulated by said screw.

As is perfectly obvious, starting with the parts in the positions shown in Fig. l, the rotation of crank-gear B under the impulse of the train of gears hereinbefore described will cause the exertion of an updraft on the rockarm L by the rod or pitman B2 and the rocking of the shaft L and the arm L2 thereon from left to right, said arm L2 thereby drawing the lever N in the same direction through the medium of the cast-off link M, and the table H, owing to the temporary rigidity of the link or connection O which results from the travel of the rollers o4 o5 in the straight portions of the slots CZ d2, sliding forwardly in its ways H' H2 coincidently therewith and at the same speed until said rollers strike the inclined or curved portions of said slots, when said link or connection O bcgins'to buckle and said table to gradually slacken its speed under the superior pressure of the brake 7L7 until the rollers reach the point indicated by the dotted circle 1,'Fig. l, at which instant the direct action of the table-operating mechanism ceases and the table is brought to a dead-stop by said brake without the least jar.

The die E, of course, is so located as to be directly under the stamp A at this stage, and said table remains stationary while said stamp is making the desired impression, said rollers continuing their movement forward and back and the sections ofthe link or connection O simply7 swinging on their bearings under the impulse of the devices with which they are connected until the rollers again reach the point indicated by the dotted circle aforesaid, when the table is drawn back to its initial position by a reverse operation of its actuating mechanism. Thus while the speed of the table between the stamping operations is quite considerable the easel with which it is brought to the stopping-point and the little time consumed therein is conducive to an increase in the number of impressions possible in a given time with little or no jar or noise.

If for any reason a number of impressions at one point be necessary or it be desired to merely emboss without the die being inked, the table H and the inking apparatus may be thrown out of action at once when its operating mechanism is in the position shown in dotted lines in Fig. l by the mere raising of the cast-olf link M sufficiently to cause the disengagement of the notch therein with the pin Z3 of arm L2 and, for convenience, catching the handle m in the hook M', as shown in similar lines in said figure, which affords a support for said link, effecting the total separation of such mechanism from the other parts oi' the machine, which may continue in the performance of their functions independently thereof.

As will be readily understood, each movement to and fro of the table H effects a reinking of the die and a replenishment of the inking-rollers for the next operation, and it is necessary in order that said rollers may be thoroughly inked that they shall rotate when in contact with the ink-rollers The inking-rollers ee of this machine, which, as stated, are normally inactive, are

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journaled in a frame e2, which is adjustably sustained by a centrally-located box or casing e3, with which the cross-bar e4 is provided, and have each on their spindles a gear c5 c, which mesh with an intermediate gear c7, journaled on said frame. A grooved pulley c3 on the spindle of roller e and a similarly-grooved collar k2 on the shaft 7c have running thereon a belt 7c3, which normally is too loose to communicate motion from the one to the other. The tightener for this belt comprises a depending arm r, provided at its lower end with a roller r', in rolling contact with the ta- -ble H, a shorter arm r2 with a grooved roller r3 for engagement with said belt, as shown, and a hollow spindle r4, sustained on a laterally-projecting shaft r, to opposite ends of which spindle said arms are respectively secured.

The ink fountain or reservoir, the spindles of the rollers ff of which are mounted in notches or recesses (shown at f2) in the sides thereof, rests on a yielding base or spring supported frame f3 at the rear end of the table and is so disposed that the upper surface of said rollers, which at their lower portions are in the ink, are in horizontal alinement With the lower surfaces of the inking-r'ollers e e. At the side of said reservoir, in the path of the roller r', is located a raised track or cam-shoulder s, which when said table is impelled forwardly forces itself by its incline s under said roller and raises the arm r, effecting the throwing forwardly of the arm r2 and its attached roller r3, as shown in dotted lines in Fig. l, suiciently to tighten the belt 7c3, thereby causing the rotation of said rollers e e just before and during the projection thereunder. of the rollers ff only. As soon, however, as the latter are Withdrawn from this position by the return movement of the table the track or shoulder s recedes from beneath the roller r', the tightener resumes its normal condition, the belt 7c3 becomes loose again, and the rollers e e cease their motion.

The relative positions of the die E and the ink fountain or reservoir F are such that when and as long as the former is under the stamp and the table is at rest the rollers ff of said fountain or reservoir are in rolling contact with and feeding the inking-rollers c c preparatory to the passage back and forth thereunder of said die upon the return of said table to its initial position, or to the point illustrated in Fig. l, and the forward movement of the same again. In this way the die becomes thoroughlyinked, though in order to avoid the soiling of the paper to be embossed it is necessary to have the iat of the die perfectly clean, to which end the wiping-plate T, over the surface of which passes the paper and which has at each side a roller t' t' therefor, is provided, said plate having enlargements t2 3 at its corners, through openings in which pass guide-rodsuu, and being suspended at such corners between springs u2 a3, which encircle said rods and are controlled bythe adi straps.

justing-nuts a4 a5 on the threaded upper ends of the latter. As will be observed, these rods project upwardly from horizontal side bars U U, provided with pins as ui at their ends, which form feet therefor, and supported by jointed hangers V V", which at their lower ends are secured in the arms u8 a9 of said side bars by screws um, have liberty of vertical movement in straps c o', secured to the inner sides of the sides D D' of the frame of the machine, and are provided near their upper ends with shouldered pins r2 r3, which permit the extensions 04 1:5 of said hangers, which are journaled thereon, to clear the upper ones of said Said extensions at their upper ends are pivotally connected with rock-arms y y' on the ends of rock-shaft y2, which latter is sustained in bearings at g3 and is provided with another rock-arm g4, the same being .similarly connected, with the camerod P,

which terminates in an enlargement 29, such enlargement supporting a roller 2J' (shown in dotted lilies) for engagement with a camgroove p2 in the cam P on the shaft B and having a central opening p3 for the passage of and affording clearance for said shaft, which it encircles. The position of this cam B on the shaft B is such that when the parts are in the relation shown in full lines in Fig.

1, the table being about to move forwardly and the die E to pass under the rollers e c', the roller p' will be in the higher part of the groove p2 therein and the cam`-rod and rockarm with which it is connected drawn toward the right of the drawing, causing the depression of the rock-arms y y and the hangers V V', the side bars U U', and the wiping-plate T, the springs u2 exerting sufficient pressure to secure the thorough wiping of the die E by the paper which is interposed between it and said plate, while allowing the saine to yield to such extent as to prevent injury to said die, the length of paper presented by plate T being sufficient to both wipe and polish the die.

Vhile the return movement of the table II is taking place roller p is in the lower part of the cam-groove p2 and the rock-shaft y2 actuated in the other direction, an operation of the wiping-plate and its operating mechanism the reverse of that just described taking place and said plate raised out of the way of said die, the gear-wheel G and shaft g2 in this event being operative through the engagement of the pawl g4 and ratchet g5 and another length of paper drawn from the roll X under the shaft 7s', around the roller d3, supported by the arm d4, over the plate T, to the spindle g3, and a clean wiping-surface thus afforded.

Vhat we claim as our invention is as follows:

1. In an embossing-press, the combination of the table, a reciprocating cam-shoulder, the ink fount or reservoir, the die, an inking roller or rollers for the die, a normally loose driving-belt for said roller or rollers, and a tightener for said belt operated through its engagement with the cam-shoulder aforesaid, substantially as and for the purpose specified.

2. In an embossing-press, the combination of the sliding table, a cam-shoulder on the latter, the ink fount or reservoir, the die, an inking roller or rollers for the die, a normally loose drivingbelt for said roller or rollers, and a pivotally-supported belt-tightener having at one end a roller adapted to run on the cam-shoulder and at its other end provided with a grooved pulley for contact with said belt, substantially as and for the purpose specified.

3. In an embossing-press, the combination with the table, the die thereon and a wipingplate for the latter, of a support for` such plate comprising a pair of side bars having feet adapted to rest on the frame of the press when the plate is depressed and supporting springencircled rods which terminate in adjusting devices, said plate being sustained between the springs on said rods and having openings for the latter and said bars being connected with mechanism whereby they are depressed upon the passage of the die under such plate and raised thereafter, substantially as and for the purpose specified.

4. In an embossing-press, the combination with the table, the die thereon and a wiping; plate for the latter, of a support for such plate comprising a pair of side bars having feet adapted to rest on the frame of the press when the plate is depressed and supporting spring-encircled rods which terminate in adjusting devices, said plate being sustained between the springs on said rods and having openings for the latter and said side bars being secured to jointed hangers which have liberty of lengthwise movement in straps on such frame and at their jointed ends are connected with suitably-actuated rock-arms, substantially as and for the purpose specified.

y5. In an embossing-press, the combination with the table and its actuating-lever, of a double link or connection the outer ends of the sections of which are attached to said table and-lever respectively, a cam slot or slots, and a bearing for the inner ends of the linkL sections controlled by the slot or slots, substantially as and for the purpose specified.

G. In an embossing-press, the combination with the table and its operating mechanism of a cam slot or slots, a double link or connection between the table and such mechanism, and a bearing for the adjacent ends of the link-sections having an end or ends in the slot or slots, substantially as and for the purpose specified.

7. In an embossing-press, the combination with the table of a suitably-actuated oscillat-ing lever, a pair of oppositely-disposed cam-slots, a double link or connection between the table and such lever, and a rod or shaft which affords bearings for the adjacent ends of the link-sections and providedwith rollers in engagement with said slots, substantially as and for the purpose specified.

8. In an embossing-press, the combination with the table of a suitably-actuated oscillating lever, a double link or connection the outer ends of the sections of which are attached to said table and lever respectively, a pair of oppositely-located cam-slots for the most part straight and having their forward ends of a curvature equal to the distance between the centers of one of the link-sections, and a rod or shaft which affords bearings for the inner ends of said sections and is provided with rollers in engagement with said slots, substantially as and for the purpose specified.

9. In an embossing-press, the combination with the sliding table of a suitably-actuated oscillating lever connected with said table a suitably-actuated rock-arm carrying a pin, a cast-off link in permanent pivotal relation with said lever, provided with a notch for reception of and disengagement from the pin and terminating in a handle, and a suitablylocated hook for retention of the handle when said link is raised out vof engagement with said pin, substantially as and for the purpose specified.

l0. In an embossing-press, the combination with the sliding table and its actuating mechanism of a stop therefor comprising a frictionblock of rawhide or other elastic material, and a lateral support for the same secured to one of-the slideways and projecting over the path of said table and sustaining a screw whereby said block is adj ustably supported, the latter being adapted to exert a braking pressure upon the table upon its passage at intervals thereunder, substantially as and for the purpose specified.

11. In an embossing-press, a table carrying a die, means for actuating said table, a wiper device consisting of bars suitably supported and guided, studs attached to said bars, a

wiper-plate moving freely on said studs and cushioned on springs above and below, and means for actuating said bars, substantially as setforth.

l2. In an embossing-press, the combination with the table, the die thereon and a wipingplate for the die, of a support for such plate comprising a pair of side bars supporting spring-encircled rods which terminate in adjusting devices, said plate being sustained between the springs on said rods and having openings for the latter, and said side bars being secured to jointed hangers which have liberty of lengthwise movement in straps on the frame and at their jointed ends are connected with suitably-actuated rock-arms, substantially as set forth.

13. In an embossing-press, the followin g elements in combination: a supporting-framework; atable or bed upon which is superimposed and by which is carried the lower memberof a die proper, and which reciprocates in both directions in a horizontal plane; a

mechanism which occasions a predetermined horizontal reciprocation of the table or bed and a predetermined dwell of the same at the completion of its forward movement; a vertically-reciprocating plunger which carries the upper member of, said die proper, and the reciprocation of which in consonance with the predetermined correspondent movement of the table occasions the registry of said members of the die and their embrace between them, and the compression of, the paper to be embossed; a mechanism for applying ink to the member of the die carried by the table; and a vertically-movable mechanism for wiping the face of the inked member of the die clean of surplus ink, which operates upon said inked member only during the forward movement of said member occasioned by the forward movement of the table; substantially as set forth.

14. In an embossing-press,the following elements in combination: a supporting-framework; a horizontally-reciprocating table or bed upon which is superimposed and by which is carried the lower member of a die proper; a mechanism which occasions a predetermined horizontal reciprocation of the table or bed and a predetermined dwell of the same at the completion of its forward movement; a vertically-reciprocating plunger, which carries the upper member of said die proper, and the reciprocation of which in consonance with the predeterm'ined correspondent movement of the table occasions the registry of the said members of the die and their embrace between them, and the compression of, the paper to be embossed; a mechanism for applying ink to the member of the die carried by the table, which consists, essentially, of an ink-fount superimposed upon and carried by the reciprocating table and provided with an ink-supplying roller, of an ink-applying roller supported above the bed, and of a mechanism which in the reciprocation of the bed positively drives the ink-applying roller during the passage of the ink-supplying roller beneath it, but exerts no influence upon, but upon the contrary permits of, the idle running of said ink-applying roller during the period of the passageof the lower member of the die proper beneath it; and a mechanism for wiping the face of said inked member of the die clean of surplus ink; substantially as set forth.

l5. In an embossing-press,tl1e following elements in combination: a supporting-framework; a horizontally-reciprocating table or bed upon which is superimposed and by which is carried the lower member of a die proper; a mechanism which occasions a predetermined horizontal reciprocation of the table or bed and a predetermined dwell of the same at the completion of its forward movement; a vertically-reciprocating plunger, which carries the upper member of said die proper, and the reciprocation of which in consonance with the predetermined correspondent movement of the table occasions the registry of the said members of the die and their embrace between them, and the compression of, the paper to be embossed; a mechanism for applying ink to the member of the die carried by the table, which consists, essentially, of an ink-fount superimposed upon and carried by the reciprocating table and provided with an ink-supplying roller, of an ink-applying roller supported above the bed, and of a mechanism which in the reciprocation of the bed positively drives the ink-applying roller during the passage of the ink-supplying roller beneath it, but exerts no iniiuence upon, but upon the contrary permits of, the idle running of said ink-applying roller during the period of the passage of the lower member of the die proper beneath it; and a mechanism for wiping the face of the inkedmember of the die clean of surplus ink, which operates upon said inked member only during the forward movement of said member occasioned by the forward movement of the table; substantially as set forth.

16. In an embossing-press,the following elements in combination: a supporting-framework; a horizontally-reciprocating table or bed upon which is superimposed and by which is carried the lower member of a die proper; a mechanism for occasioning a predetermined horizontal reciprocation of the table and a predetermined dwell of said table at the completion of its forward movement, which consists of an actuating-lever, of a double link or connection the outer ends of the sections of which are attached to the reciprocating table and the actuating-lever respectively, of a cam slot or slots formed in the supportingframework, and of a bearing for the inner en ds of the link-sections controlled by the slot or slots; a vertically-reciprocating plunger, which carries the upper member of said die proper, and the reciprocation of which in consonance with the predetermined correspondent movement of the table occasions the registry of the said members of the die and their embrace between them, and the compression of, the paper to be embossed; a mechanism for applying ink to the member of the die carried by the table; and a mechanism for wiping the face of said inked member of the die clean of surplus ink, substantially as set forth.

In testimony whereof we have hereunto set our hands this 2d day of April, A. D. 1894.

CHARLES T. PACKER. GEORGE NV. SWIFT.

Witnesses:

SAML. A. FERRELL, HOWARD S. HEws'roN.

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