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Publication numberUS1102770 A
Publication typeGrant
Publication dateJul 7, 1914
Filing dateFeb 5, 1914
Priority dateFeb 5, 1914
Publication numberUS 1102770 A, US 1102770A, US-A-1102770, US1102770 A, US1102770A
InventorsEdward M Lockwood
Original AssigneeEdward M Lockwood
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Embossing and printing press.
US 1102770 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)


Patented July 7, 19M;





Patented July 7, 1914.




Patented July 7, E914,




Pafwnted July 7/, 3914:.





Specification of Letters Patent. Application filed Februaiy 5, 1914. Serial No. 816,661.

Patented-July 7, 1914..

To all whom it may concern:

Be. it known that I, EDWARD M. LooK- wooo, a citizen of the United States, and resident of Philadelphia, county of Philadelphia, and State of Pennsylvania, have 1nvented an Improvement in Embossing and Printing Presses, of which the following 1s a specification.

This invention relates to embossing and printing presses, and consists of certain improvements which are fully set forth in the following specification and shown in the accompanying drawings which form a part thereof.

One of the objects of my invention is to provide a mechanism for use as a unitary part of a complete machine for printing and embossing whereby the wearing surface of thrust or like bearings may be varied or shifted from one point of application to another, and thus not only save wear on said bearings but also distribute the lubrication for the bearing or bearings, so that the wearing surface is always maintained properly lubricated.

In connection with the foregoing object the invention has for a further object to automatically control the movement of the aforesaid thrust or pressure applying members.

In practice in machines of this character, it has been found that the heavy pressure required for eflicient operation causes the lubricating fluid or material to be squeezed or pressed out between'the contacting or wearing surfaces of the bearings, with the consequent result of undue wear upon the parts.

It is therefore one object of my invention to overcome the foregoing defects.

The invention has fora further object, to provide alinement of divided guides for the die carriage, so that the carriage may freely reciprocate in said guides and from one part thereof to the other irrespective of the vertical position of the carriage and one part of guides in which it may be held with respect to the other part, whereby the carriage is always in proper association with the entire guide portions for horizontal-reciprocation irrespective of anyvertical adjustments to the carriage.

My invention has for a further object to provide automatic feeding mechanism for t the ink wiping web used to wipe the die carried by the carriage, which may be adjusted and regulated at the will of the operator to vary the length of the wiping Web supplied with each reciprocation of the carriage.

It has for a further object, to provide a manually operable feeding means for the wiping web, said means operating as an auxiliary adjunct of the automatic feeding mechanism, whereby the wiping web may be fed at times when the machine is 'at rest.

My invention consists of devices and means for efficiently accomplishing the aforesaid objects of my invention as more fully set out hereinafter and defined in the claims.

Referring to the drawings :Figure 1 represents a vertical section of a press embodying my invention; Fig. 2 represents a side elevation of a portion of the press showing the journal actuating mechanism for the press plunger; Fig. 3 represents an end elevation of the same; Fig. 4 represents an end elevation of the upper press plunger and its adjuncts; Fig.6 represents a side elevation of the same; Fig. 6 represents a detail of the driving device for the main rock shaft; Fig. 7 represents a section of the wip' 'ing web feeding'mechanism used in connection with the wiper block; Fig. 8 represents a side elevation of a portion of the control mechanism for the wiping web feeding mechanism; Fig. 9 represents an end elevation of the parts shown in Fig. 7 and Fig. 10 represents a detail of the feed mechanism. Similar numerals of reference indicate corresponding parts.

1 designates the main frame of the ma chine, which'consists preferably of two side frames connected by suitable cross frames and may be of any desired'construction.

2 designates a set of guides arranged substantially horizontaland serving to horizontally guide the reciprocable carriage 3 which is provided with the adjustable dies, clamps 4. The carriage 3 is connected with a rock lever 5 by means of links 6 and 7 which are pivoted together upon a transverse shaft 8 and form a mechanism permitting a dwell in the reciprocation of the carriage. The ends of the shaft 8 are pro-' vided with suitable guide rollers 8 for cooperation with the guide ways 9 and 10 which are suitably spaced apart, and have Gad one portion thereof arranged substantially horizontal while the remaining portion is curved and concentric with the axis of the link 6 on the carriage 3. By this construction it will be apparent when the carriage is in the position shown in Fig. 1 that the rearward movement of the arm or lever 5 will cause the link 6 to swing backward and upward without disturbing the carriage, thereby giving to it a perlod of dwell to perform the printing and embossing, and subsequently when the shaft 8 passes above the curved ortion of the guideway the links 6 and 7 Wll have straightened into approximate alinement and at which time a further movement of the arm 5 will impart movement to the carriage 3 along the guides 2. In connection with this construction, attention is directed to the fact that the two guides 9 and 10 are connected together as shown at 11 and are also fixed to the guides 2, and the two sets of guides in turn are pivoted at 12 to the main frame in order to swing together at certain times, as will be later described.

The machine is driven from any suitable source of power, such as the motor 13, and transmits motion by way of the belt 14 to the pulley 15 which is mounted upon the main shaft 16, the latter being suitably journaled in the main frame of the machine. Power is transmitted from the shaft 16 through suit-able gears 17 to a cam shaft 18, which latter also carriesa' wheel 19 having a wrist-pin 20 secured thereto by means of which an oscillating movement is transmitted to the rock shaft 21 and its arm 5 through the medium of the arm 22 and crank link 23, this latter being detachably connected to the wrist-pin 20. The rock shaft 21 has fixed thereto the lever 5 and thus causes actuation of the parts controlling the reciprocating action of the carriage 3.

24 designates a guide for a vertical diecarrying plunger 24 arranged at the front and upper portion of the machine. The plunger 24 is adjustably connected to a pin 26 of a toggle link 27 by a mechanism comprising guide blocks 28 mounted in guide- Ways at the upper portion of the plunger, said guide blocks in addition serve as journals for the pin 26 and having transverse guides to receive the laterally disposed flanges 28 of a wedge member 29. This member 29 is also provided with flanges 30 at the bottom which slide in grooves or guides 31. of a portion of ,the plunger 24. The wedge member 29 is movable through the medium of a feed screw 32, the operation of which is controlled by the hand wheel 33. A set nut 34 is also provided to hold the wedge member 29 immovable when adjusted through the medium of a feed screw 32.

35 designates the second member of the toggle mechanism and the same is hinged at 86 to the head 37. It will further be noted that both the member and link 27 are each provided with a lug 88, one being adapted to abut the other and'serve as a stop to limit the movement of the link 27 in one direction. This toggle mechanism is straightened and operated by a pin 89 carrying the link 40, which connects with an arm 41 receivin a rocking movement through the sha t 42, lever 43 and rod 44, the latter being actuated by a pivoted arm 45, and the cam roller 46 operating in a groove of the cam 47. This cam 47 is mounted upon the shaft 18.- The aforesaid mechanism serves the purpose of imparting a comparatively small movement to the diehead 25, but yet is suliicient to permit free movement of the carriage 3 beneath it, and the easy introduction and removal of the paper. The movement of the die head 25 is, however, relatively large with respect to the vertical movement of the carriage 3 and the die clamp 4 carried thereby.

In my present invention, the plunger 24 and die member 25 really serve as an abutment against which the pressing mechanism exerts its pressure, this latter mechanism being located at the lower portion of the machine. 7

48 designates a movable table carried by the plunger 49 and having a suitable set of guides 2 thereon to receive the carriage 3, which guides are also alined with the guides 2 and are normally interlocked therewith, so that as the table 48 moves up or down the free ends of the guides 2 likewise receive the same motion and hence both sets or portions of carriage guides will always be in alinement, and these guides 2 positively hold the carriage laterally in position upon the table and plunger. The plunger 49 is suitably guided in a head 50 fixed to the frame 1 and is operated by means of the toggle members 51 and 53 designates a bearing pin interposed between the plunger 49 and the member 51, the said pin being journaled or seated. in suitable thrust blocks 54. 55 and 58 designate respectively similar bearing pins between the toggle members 51 and 52 and between the member 52 and the base plate 57. These latter pins are journaled in similar blocks to those for the pin and hence I have preferred to designate these blocks with the same reference numerals. I have used the term. pin for the parts 53, 55 and 56 merely as a convenient one, and it will be understood from the. function of these parts that they might equally well be termed shafts, pintles, bearing members or thelike.

The toggle made up of the foregoing mechanism is operated by a cam roller 58 journaled in a bracket 59 fixed to the block 52, and the'said roller 58 carries on its journal a yoke 60 which is apertured to receive the shaft 18. Upon the opposite side of the shaft 18 from the roller 58 there is a second roller 61 riding upon the periphery of the cam 62, which ismounted for rotation with the shaft 18 and provided with a depression 63 opposite to which is the cam lug 64. It will therefore be apparent, as the said cam rotates, that the lug 64: will operate to shift the roller 58 to straighten the toggle while continued movement of the cam will cause the roller 61 to shift the yoke and thus break the toggle. At the time the toggle is straightened the plunger 49 will be forced upwardly to bring the carriage and dies to operative position and the necessary heavy pressure for the work be properly transmitted. This pressure causes the pins to tend to wear rapidly and even when properly lubricated the oil or other lubricant is squeezed out during the pressing operation and thus subjects the pin to substantially as much wear as if there were no lubrication. In order to obviate this disadvantage I have in the present instance provided a ratchet wheel 65 for each of the pins 53, 55 and 56, the said ratchets being keyed or otherwise secured to the respective pins and intermittently actuated by pawls.66 carried by one arm of a bell crank lever 6( loosely mounted upon the respective ins. The several bell cranks are connecte together by links 68 and 69 so that the operation of one bell crank will cause a similar movement to be transmitted to the remaining bell cranks. As here shown, motion is imparted to one of the bell cranks by a connecting rod 70 pivoted at one end to a rock lever 71, which also serves to control the movement of the inking roll at the proper time. It will be understood that the rod 70 may be connected to other suitable movin parts of the mechanism, or independent y actuated as desired. I

Having referred to the inking roll, I will now describe the operation of the same and its relation to the movable carriages.

The lever 71 is connecteo at its upper end to a rock spindle 72 which carries the inking roll 73 and is adapted to move the latter from contact relation with the supplying roll 741 to a position substantially in the path of the carriage 3, so that the die clamp '4 upon the latter may pass into contact therewith and have the ink distributed upon the surface of the die. The ink supplying roll 74 is rotatably mounted in a suitable ink reservoir 7 5. The arm 71 is pivoted at 76 intermediate its ends and has its lower end connected by a link '(7 to a rocker arm T8, this latter being pivoted upon a suitable spindle 79 and carrying a roller 80. This roller 80 rides in a cam groove of the cam 81 which is carried by the cam shaft 18, and

the parts are of course so designed and arranged as to impart the desired rocking movement to the arm 71 at the proper timein the cycle of operation. It will be noted in connection with this action that the cam 81 is so timed that the ink applying roll 73 is advanced and held stationary at the time the carriage 8 is being reciprocated beneath it. a

82 designates the wiper plate, preferably provided with a suitable cloth pad 83 across the face, of which the wiping material such as a aper web or the like is adapted to be fed and is here indicated in dotted lines at 84. The mechanism for causing the usual vertical reciprocation of the wiper member has been omitted as any suitable means may be employed for this purpose, but it will be understood that the wiper 82 is to be raised when the carriage 3 moves rearward of the press in order not to be in contact with the die during its travel to position to receive the ink. When, however, the carriage makes its return movement, that is, is moved forward toward its printing position, the Wiper 82 is lowered for the purpose of wiping the surplus ink from the surface of the die before the embossing and printing take place.

The means for feeding, guiding and controlling the actuation of the wiping web will now be described.

85/ designates a supporting shaft jour naled at a convenient point on the frame 1, and having a roll of paper which is adapted to be guided beneath the feed roller 86, then over the rod 87 passing thence beneath the wiper pad 83 and thence upward to the winding shaft or mandrel 88. The mandrel 88 is removably mounted between suitable spindles 89, one of which is shown in Fig. 7 and rotates therewith through the medium of ears or lugs 90 which are adapted to seat in suitable apertures or slots in the end of the mandrel. In view of the fact that the die on the carriage .3 is only required to coact with the wiper 82 at certain intervals, it is of course unnecessary to provide a continuous feed for the paper 8 1, and accord 'ingly I have provided an intermittent action to rotate the mandrel 88 as occasion demands, and permit only enough paper web to be fed across the face of the wiper at each opera-tion to present a clean surface necessary to insure the wiping of the die to the requisite degree. This intermittent mechanism comprises a frame 91 fixed to the main frame of the machine and having journaled therein a sleeve 92 carrying the pinion 93, whichlatter is in mesh with a gear .9 upon the shaft 95. The sleeve 92 forms a bearing for'the spindle 89, and transmits its motion thereto through the medium of a leather or other friction disk 96 which is interposed between the plate 96 on the end of the pinion 93 and a ratchet wheel 97 fixed to the said spindle 89. .The friction between the aforesaid parts is controlled and regulated by a spring 98 bearing at one end against a part connected to the frame 21 and at its opposite end against an adju ting collar 99 threaded to the spindle 89. The tension of this spring 98 may be adj usted by adjusting the collar 99 on the spin mounted on the frame 91. Motion is trans mitted to the spindle 95 by means of a pinion 102 normally meshing with a rack 103 which is mounted for reciprocating movement within the guide head 104 and is operated by the connecting rod 105 ivoted at its lower end to a block 107, sai block 'adjustably mounted in a guide frame 108 suitably pivoted to the main frame 1. In

order to fix the radial position of the block 107 with respect to the pivotal point of the frame 108, I have shown the same threaded. upon the spindle 109, which latter terminates in the operating handle 110. This con-- struction affords a means for varying the stroke of the connecting rod 105 and thus, determines the movement of the rack 103. The frame 108 is oscillated by the link 111 jointed at 112 to a rocker arm 113 fixed to the rockshaft 21. It will thus be apparent that the rack 103 on its downward stroke, will cause the pinion 102 to transmitmovement to the gear 94, thereby rotating the pinion 93 and through the friction clutch cause the mandrel 88 for the paper web to rotate in the direction of the arrow shown in Fig. 1, namely, to Wind a certain length of the paper web upon the mandrel. Another adjunct of the feeding mechanism is the guide roll 86, between which and the pressure roll 114 the paper passes on its way to the wiper device 82. The feeding roll 86 is operated substantially simultaneously with the movement of the mandrel 82, by means of a pawl and ratchet movement 115 controlled by the chain 116 which passes over. a sprocket wheel 117 and has its outer end connected to the rack 103. The chain 116 also is secured to and passes about the sprocket wheel 118 on the shaft 119 of the feed roller 86, the said sprocket being fixed to acollar 120 carryin the pawl 121 of the ratchet movement, so that movement of the said collar in the proper direction causes the ratchet wheel 115 to turn the feed roller to the degree desired. The proper tension on the chain 116 is maintained by a suitable cord 112 which is fixed to and passes over the collar 120, and also over an idle pulley 123 beyond which it terminates in a counter-weight 124. Should it be desired to ac-' tuate the feed roller 86 when the automatic feeding mechanism is not in operation, I

have provided a hand lever 125 pivoted at 126 to the guide plate 104 and carrying also the sprocket wheel 117. By oscillating this lever, the feed roller 86 draws out a length of paper web which may be taken up by manually turning the member 100 ofthe mandrel,

127 designates an extension of the lever 125 projecting into the path of movement of the pivot 116 and serving the purpose of preventing the hand lever 125 from moving out of position during the automatic feeding operation In the operation of the machine it will be assumed that the parts are in the position shown in Fig. l and a printing or embossing step has just been completed. The continued operation of the machine causes the cam 62 to rotate and shift the roller 61 so that, through the yoke 60, the lever arm 59 is swung in a direction to break the toggle formed by the members 51 and 52 and thus lower the press plunger 49 and table 48.

At the time this action takes place the rod 7 0- is actuatedby the cam 81 to shift the'bell crank 67 and cause the ratchet wheel to give a partial rotation to the pin 53. The

same movement is likewise given to the pins 55 and 56 through the medium of the connecting levers 68 and 69, and consequently all of the pins are partially turned so that a freshly lubricated portion of each pin comes into place to take the pressure of the next printing operation and thus save wear upon the pins. At the same time that the I rod 7 0'performs its function, the arm 71 is actuated to swing the ink roller 73 from itsposition in contact with the ink supplying.

roll 74 to a 'osition in the path of the die 4 carried by tli interval of time the lever 5 has been rocked rearwardly by the movement of the shaft 21, thus straightening the toggle of the links 6 and 7 so that the carriage 3 with its die is moved to the rear of the machine along the guides 2, the die passing beneath but out of contact with the wiper member 82 and into 'enga ement with the roller 73, where it is inke for a new printing operation. The movement of the rock shaft 21, to shift the lever arm 5, also causes the rack 103 to move downwardly and thus rotate the mandrel 88 to wind a predetermined quantity of the wiping paper web from the roll 85 and bring a clean surface of paper into position upon the wiper 82. The movement of the e carriage 3. During this short 13d as they pass the wiper pad 83 the mechthat the lower plunger 41-9v is dropped. On,

the return of the carriage to normal posif tion the rod 44 brings the toggle member27 throw of the oscillatin I thus change the strokeo the rod105. In;; case it is desired to feed the paper web in the designe without afiectin anism controlling the movement of the said vaiper comes into operation and lowers it into contact with the inked surface of the die so that all superfluous ink is removed before the carriage actually returns to its normal rintin or embossing position (Flg. 1).

It will further be noted that the cam 47 is,

properly timed to actuate the rod 44 controlling the toggle formed by the members- 27 and'35, and consequently the upper plungel 24 is adapted to be moved away from;;

the carriage 3 at substantiallyfthe same time back to its normal position, so that the plunger 24;- becomes a fixed abutment to re; ceive the heavy pressure transmitted by the, .small movement of the. lower plunger 49.1 Should it be desired to vary the quantity of paper web fed to the mandrel 88, the hand- :lever 110 may be turned so as to vary the frame 108 and when the machine is not in o. eration, the

'lever 125 is manuallyoperate and the dea sired quantity of paper web unreeled. It

will be noted further that the upward movement of the table/i8 is accomplished the; relation between the guides on theta 1e and the guide members 2, thus permitting thecarriage 3 to travel uninterruptedly from one part to anothen Thus as the table 48 rises to impartpres; 5 sure, it carries. with it, the free ends of the. guides 3 which swing about the pivot 12' and maintains the proper alinement.

Attention is particularly directed'to the toggle mechanism and its adjuncts for con-v 1 .trolling the movement of the plunger 49 and? 50 the carriage, in view of the fact that the movement imparted to the bearingpins of the ,toggle is an important componentof my invention; While the reciprocating movement of the plunger 49- is very limited, the

ressure transmitted to this plunger is very iieavy and consequently the parts embodied printing or embossing action. As these pins faces of the pin and the are seated in suitable wear or bearing blocks, and are also provided with lubrication it is evident that unless the wearing surblocks are varied with respect to eachother, the tendency of (power transmitting means must be? to stand the wear and strain of the the pressure will be to squeeze or work the lubricant away from the wearing surface. This condition I have overcome by providing a means for intermittently changing the relation between the respective pins and the Wear blocks so that after one surface has been exposed to the pressure, another surface carrying a coating of lubrication will move'in a position to receivethe thrust during the following operation.-

It will now be apparent that I have devised a novel and useful construction which embodies the features of advantage enumerated as desirable in the statement of the invention and the above description, and while I have in the present-instance' shown and described the preferred. embodiment thereof which has been found irirpractice to give satisfactory and reliable results, it is to be understood that the same is susceptible of modification. in various particulars without departing from the spirit or scope of the inventionorjsacrificing any of its advantages, l

. Having thus described my invention, what I claim and desire to protect by Letters Patent of the United States is 1*- a 1. In angembossing, and printing press, the combination of. a reciprocable dle actuat ng plunger, an abutment for receivmg the thrust of the plunger, power devices,

for reciprocating said plunger,means having oscillatin parts for transmitting'thrust from ,said 7 evices tosaid plunger, and means for-automatically renewing the surfaces subjectei to. thrust pressure between said transmitting meansand said plunger, whereby difi'erent:wearin surfacesof said transmitting means are, uring periods in termediate of the printing periods, succesv sively brought into position to receive the thrust; v 2. In: anfembossing and printing press, the combinationof a reciprocable plunger, anabutment for receiving the thrust of said plunger, power devices. for reciprocating said plunger, a pin rotatably mounted and {forming a power transmitting means between said power, devices and said plunger,

and means for automatically causing an intermittent positive rotary motion to said pin, whereby difi'erent wearing surfaces of said pinrare-successively brought into position to receive the thrust. v

3; In, an embossing and printin press, the combination of a reciprocable p ungergan abutment for receiving the thrust of said plunger, power devices embodying a toggle for reciprocating said plunger, a pin rofor the members of said toggle, and means for automatic 11y causing an intermittent rotary movemznt of said pin whereby different wearing surfaces of said pin are see tatably mounted and forming a connection 55 mitting a step-by-step movement simulcessively brought into position to receive the thrust.

4. 'In an embossing and printing press,

the combination of a reciprocable plunger,

an abutment for receiving the thrust of said plunger, power devices embodying a toggle for reciprocating. said plunger, a pin rotatably mounted and forming a hinge connection for the members of said toggle, and means operable intermittently for automatically causing a partial rotation of said pin whereby the wearing surface of said pin' subjected to thrust is varied.

5. In an embossing and printing press, the combination of a reciprocable plunger, an abutment for receiving the thrust of the plunger, a two part toggle power device for reciprocating said plunger having a plurality of rotatably mounted pins forming thrust connections between said plunger and said toggle and between the parts of the toggle, and means for automatically causing a partial rotation of each of said pins when the toggle is broken, whereby the wearing surfaces of said pins subjected to thrust are intermittently varied.

6. In an embossing and. printing-press, the combination of a reciprocable plunger,'

an abutment for receiving the thrust of the plunger, power devices embodyinga togglemechanism for reciprocating said plunger, a plurality of pins each forming a hingecon nection between parts of said-toggle mechanism and between the toggle and the plunger, means automatically actuated for in termittcntl causing a partial rotation of each pin w ereby difi'erent wearing surfaces of said pins are successively broughtfinto thrust positions,'and nieans'for adjusting the abutmentto and from the plunger.

7. In an embossing and printing press,

the combination of a reciprocable plunger,

an abutment for receiving the thrust of said plunger, power devices embodyin a toggle mechanism for reciprocating sai plunger, a plurality of pins each forming a thrust connection between parts of said toggle mechanism and between it and the plunger,

a bell crank movably mounted on each pin, connections between said bell crank for causing substantially simultaneous actuation of said bell cranks, means automaticall actuated for intermittently moving sai bell cranks, and means between each bell crank and the respective pins fortransconnection between said toggle mechanism crank whereby the oscillation of said bell crank causes a step-by-step movement to be transmitted to the. change its surface sub ected to thrust.

,9. In an embossing and printing press, the

combination of a reciprocable plunger, an

abutment for receiving the thrust of the plunger, power devices for reciprocating said plunger, a reciprocable die carriage, a guide for said carriage mounted on said plunger transverselv to the direction of its movement, a second uide for said carriage pivotally mounted adjacent said guides on said plunger and in alinement therewith, means totransmit-movement of said plunger guides to said pivoted guides, whereby both setsof said guides are always maintained in alinement, and means for reciproeating the carriage over said guides.

.10. In an embossing and printing press,

the combination of- 'a reciprocable plunger, an abutment 'forreceiving the thrust of the plunger,- power devices for reciprocating said plunger, 9. reciprocable carriage, a set of guides for said carriage carried by andmovable with said plunger, a second set of in to intermittently guides pivotally mounted adjacent to and in alin ement with'said first set of guides and having an interfitting connection therewithto transmit thereciprocal movement of said guides of the plunger to said pivoted guides, and means to reciprocate said carriage longitudinally of both setsof guides.

11 In'an embossing and'printing' press, I

the combination of a reciprocable plunger, 1

an abutment for receiving the thrust of-said plunger, power devices embodying a toggle mechanism for reciprocating said plunger, pins" forming hinge connections between parts of said toggle, bearing blocks having grooves in which said pins are seated on opposite sides to receive the thrust, and

means for automatically causing a partial rotation of said pins whereby different wearing surfaces 7 of 'said pins are successivcly rought into position to receive the thrust. I 1

12. In an embossing and printing press, the combination of a reciprocable plunger, a reciprocable abutment for. receiving the thrust of the plunger, means for imparting to the plunger a-relativelyv small movement in bringing thesame into and out of printing position, means for im arting a relatively large movement to t e abutment in moving it into and out of cooperation with the 'plun er, a 'reciprocable carriage carried by the p unger whereby it is moved toward and-from the abutment in the printing op- In testimony of which invention, I hereunto set my hand,


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4669379 *Feb 21, 1986Jun 2, 1987Steffens Robert SInk transfer arrangement and method in a printing press
US5195435 *Mar 18, 1991Mar 23, 1993All-State Legal Supply Co.Continuous intaglio printing apparatus and method
WO1992016372A1 *Mar 17, 1992Oct 1, 1992All State Legal Supply CoContinuous intaglio printing apparatus and method
U.S. Classification101/164, 74/38
Cooperative ClassificationB41F3/36