US3874284A - Selectively printing rotary duplicator - Google Patents

Selectively printing rotary duplicator Download PDF

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Publication number
US3874284A
US3874284A US352299A US35229973A US3874284A US 3874284 A US3874284 A US 3874284A US 352299 A US352299 A US 352299A US 35229973 A US35229973 A US 35229973A US 3874284 A US3874284 A US 3874284A
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Prior art keywords
printing
roller
cam
cam disks
disks
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US352299A
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English (en)
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Gerhard Ritzerfeld
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41L—APPARATUS OR DEVICES FOR MANIFOLDING, DUPLICATING OR PRINTING FOR OFFICE OR OTHER COMMERCIAL PURPOSES; ADDRESSING MACHINES OR LIKE SERIES-PRINTING MACHINES
    • B41L19/00—Duplicating or printing apparatus or machines for office or other commercial purposes, of special types or for particular purposes and not otherwise provided for
    • B41L19/04—Duplicating or printing apparatus or machines for office or other commercial purposes, of special types or for particular purposes and not otherwise provided for for printing from selected parts of one or more printing surfaces in one cycle, e.g. line printing
    • B41L19/06—Duplicating or printing apparatus or machines for office or other commercial purposes, of special types or for particular purposes and not otherwise provided for for printing from selected parts of one or more printing surfaces in one cycle, e.g. line printing with co-operating forme and impression cylinders
    • B41L19/08—Duplicating or printing apparatus or machines for office or other commercial purposes, of special types or for particular purposes and not otherwise provided for for printing from selected parts of one or more printing surfaces in one cycle, e.g. line printing with co-operating forme and impression cylinders by effecting relative movement of forme and impression cylinders during printing cycle

Definitions

  • a rotary printing roller holds thereon a printing form having a plurality of circumferentially spaced printing sections.
  • a counter roller cooperates with the printing roller. and one of the two rollers is movable to and from a printing position closely proximal to and defin ing with the other roller a printing line.
  • a cam in rangement is provided for moving the movable roller to its printing position and maintaining it in the same for selected different portions of the time required for one revolution of the printing roller, so that the number of printing sections passing through the printing line is a function of the selected time portion.
  • Signalling lamps are provided which are energized to indicate the printing sections which have been selected for printing.
  • the present invention relates generally to a rotary duplicator, and more particularly to a selectively printing rotary duplicator.
  • Selectively printing rotary duplicators are capable of printing individual lines, groups of lines or the entire contents of a printing form, depending upon which mode of operation is selected. Such machines are already known from the prior art, for instance from my prior US. Pat. No. 2,967,477 which teaches how the length of the printed section of a printing form can be varied, and U.S. Pat. No. 3,077,829 which discloses a selectively printing rotary duplicator. Such duplicators are used to print copy sheets. cards, webs or the like and are highly versatile in their application.
  • Another object of the invention is to provide such an improved selectively printing rotary duplicator in which the printing sections whose selection for printing has been made, are indicated on a signalling device, for instance a device producing visually observable signals.
  • Another object of the invention is to provide such a selectively printing rotary duplicator which during the printing operation carries out an automatic cancellation of the selection of the printing section that has just been printed.
  • An additional object of the invention is to provide such a selectively printing rotary duplicator wherein, as the cancellation of the previously printed printing section is effected, the apparatus is automatically set for the beginning of the next section to be printed in accordance with the previously made selection.
  • a selectively printing rotary duplicator which, briefly stated, includes a combination comprising a rotary printing roller having holding means for holding on the printing roller a printing form provided with a plurality of circumferentially spaced printing sections.
  • a counter roller cooperates with the printing roller, and one of these rollers is movable to and from a printing position closely proximal to and defining with the other roller a printing line.
  • Operating means is provided for effecting movement of the one roller to and from the printing position.
  • Adjustable selecting means is associated with the operating means for moving the one roller to the printing position and maintaining it in the same for selected different portions of the time required for one revolution of the printing roller, so that the number of printing sections passing through the printing line is a function of the selected time portion.
  • Signalling means provides signals indicative of the printing sections selected for printing
  • actuating means is associated with the signalling means and the selecting means for actuating the former in response to printing of printing sections selected with the latter.
  • FIG. 1 is a partially sectioned somewhat diagrammatic side-elevational view of an apparatus according to the present invention, with portions omitted for the sake of clarity;
  • FIG. 2 is a fragmentary section taken on line A-B of FIG. 4;
  • FIG. 3 is a view similar to FIG. 2 but taken on line C-D of FIG. 4;
  • FIG. 4 is a horizontal section, looking down, through the portions of the embodiment which are shown in FIGS. 2 and 3;
  • FIG. 5 is a section taken on line G-H of FIG. 1',
  • FIG. 6 is an end view as seen in the direction of the arrow VI of FIG. 7;
  • FIG. 7 is a horizontal section, looking down, through FIG. 6;
  • FIG. 8 is a front view of a detail of the illustrated embodiment.
  • FIG. 9 is a simplified wiring diagram concerning a detail of a control arrangement in the illustrated embodiment.
  • the apparatus according to the present invention has several functional units which will be discussed separately.
  • the control mechanism for adjusting the cams controlling the printing operation is illustrated in FIGS. 1, 2, 3, 4 and 5.
  • the cam control of a rotary printing machine is basically already known, for instance from my prior US. Pat. No. 3,238,868 to which further reference may be had if desired.
  • a printing roller 5 is mounted for rotation on a shaft 4. It is provided with non-illustrated but well-known means for retaining on the circumference of the printing roller 5 a printing form 27, that is a master carrying a plurality of printing lines or printing sections which are to be printed onto copy sheets.
  • a cam shaft 6 is provided which is turned in synchronism with the shaft 4 via transmission gears I, 2 and 3. Mounted on the cam shaft 6 and retained thereon against rotation relative to the cam shaft 6 by means of the woodruff keys 7 and 8, are two gears 9 and 10, respectively. Thus, these gears rotate as the cam shaft 6 rotates.
  • a pawl 11 is mounted on the gear 9, and a similar pawl 16 is mounted on the gear 10. These pawls are of course pivotable in the usual manner and it will be seen that pawl 11 transmits motion resulting from rotation of the gear 9 to the gear 13, whereas pawl 16 similarly transmits motion of the gear 10 to the gear 18.
  • Two housings l9 and 20 are provided, which are screwthreadedly connected with the gears 13 and 18, respectively.
  • a coil spring 21 is accommodated in the housing 19 and a similar coil spring 22 is accommodated in the housing 20, each being connected with its opposite ends to the shaft 6 and the respective housing.
  • a gear 23 provided with a cam 29 is threadedly fixed to the housing 19, and a similar gear 24 provided with a cam 28 is threadedly connected with the housing 20.
  • the diagrammatically illustrated gear transmission 25 serves to tension the springs 21 and 22 via the gears 23 and 24, respectively, the transmission 25 being turned by a non-illustrated drive which in turn is coupled with and uncoupled from the gear transmission 25 by a similarly non-illustrated and conventional electromagnetic coupling.
  • the transmission and its operation are known per se from British Pat. No. 1,086,783.
  • the arrangement is so set that it will normally and always print the first printing line of a plurality of lines or sections on the printing form 27 (although it can also be so set that it will normally not print any line, so that all lines must be selected), and that it is desired to print (in addition to the first line) the fourth, fifth, sixth and seventh lines of the printing form 27, then the pawl actuators l2 and 17 are moved three times in the direction of the arrow M (FIG. 2) and N (FIG. 3), respectively.
  • an arm which carries at its end remote from the shaft 41 a counter pressure roller 43 so that the latter is rotatable in parallelism with the shaft 4 on which the printing roller 5 rotates.
  • the free end of the control arm has pivoted to it a link 42 the other end of which is pivoted to a further arm 56, and in turn the free end of the arm 56 is pivoted on the same shaft which carries the counter pressure roller 43.
  • a pivoting of the control arm 60 about its shaft 41 initi ated by the pivoting of the control arm 40 in the direction of the arrow P, causes the link 42 to be displaced in the direction of the arrow R (FIG. 1) and thereby to pivot the counterpressure roller 43 against the periphery of the printing roller 5.
  • a non-illustrated switch is operated, activating the electromagnet 26 (FIG. 2) to thereby move the cam 32 to its activating position S shown in phantom lines in FIG. 3, via the linkage members 30 and 31.
  • the apparatus is now in position for printing, in addition to the automatically printed first line of the printing form 27, the just-selected fourth, fifth, sixth and seventh lines of the printing form 27.
  • the printing roller 5 with the printing form 27 will perform one revolution, in synchronism with the cams 28 and 29.
  • the apparatus provides for an automatic cancellation of that printing line or printing section which has just been printed.
  • printing line 4 has been printed the setting for this line is automatically cancelled.
  • the apparatus is provided with a roller 33 (see FIG. 4) which is so arranged that it is in the path of movement of the cam 32 when the latter is in the position S.
  • An uncoupling member 34 is fixedly connected with the roller 33 and during the printing operation causes pressure upon the pawl 16 in a sense disengaging the latter from the gear 18.
  • the thus released spring 22 causes the gear 18 to rotate and moves the surface 35a of an abutment 35 which is fixedly connected with the gear 18, against the surface 360 of an abutment 36 which is fixedly connected with the gear 13.
  • a nonillustrated conventional roller can be provided which is operated by the electromagnet 26 in order to once again move the pawl actuator 17 once in the direction M, so that the next-following line, that is in the example being discussed the eighth printing line of the printing form 27, will automatically be set for printing.
  • the first and eighth line will be printed in each and every case insofar as the example is concerned, whereas the fourth through seventh lines have been selected at will. If, following the printing of the eighth printing line, it is desired to have additional lines of the printing form 27 printed, then these must again be selected in the manner described above with respect to lines four to seven;
  • the selected lines such as the lines four to seven
  • the switch which energizes the electromagnet 26 must be switched off. That being the case, and due to the effect of the linkage members 30 and 31, the cam 32 will return from the position S to its rest position and will thus not come in contact with the roller 33. This means that the connection between the pawl 16 and the gear 18 remains unchanged and is not dissolved, so that the selected lines four to seven of the example will be printed again during the next revolution of the printing roller 5.
  • the cancellation of the selected lines is effected, as discussed above, via the electromagnet 26, the linkage members 30, 31 and the cam 32, when the selected lines have been printed for the required number of times. This causes the surfaces 35a and 36a of the abutments 35, 36 to move into engagement.
  • the cam 29 is turned via the gear 23 that can be coupled to the aforementioned nonillustrated drive by means of a nonillustrated electromagnetic coupling.
  • This causes the abutments 35 and 36 which thus act as blocking means to move into engagement and to turn the cam 28 back to the starting position, that is to the position in which automatic printing of the first printing line of the printing form 27 will take place during the next-following revolution of the printing roller 5.
  • This arrangement therefore constitutes displacing means for the cams 28 and 29.
  • gear 24 drives gear 46 (see FIG. 7) which in turn synchronously drives the cam plate 47 which is fixedly mounted on the shaft 48.
  • the cam 28 has moved to starting position, that is to the position in which the first of the selected printing lines of printing form 27 will be printed (in the above example it will be line 4)
  • the synchronous drive has moved the cam plate 47 with its contact portion 47a into engagement with the electrical contact 49.
  • the cam plate is turned synchronously with the position of the cam disk 29 which selects the last of the selected lines to be printed, in the example the line 7.
  • the cancellation of the selective-printing setting of the cam disks 28 and 29 is described, up to the desired head, that is the head portion of the printing form which is to be printed on every copy sheet.
  • contact 75 (see FIG. 9) is closed.
  • the printing of the head is known per se and can for instance be effected via the switch 72 (causing printing of one printing line) or via the switch 73 or the switch 74, causing printing of two or three printing lines, respectively. In any case, the respective contact is closed. If switch 71 is manually operated, then current flows through the circuit 75, 72, 61, 71 and the electromagnetic coupling 70 which starts to turn the gears 23 and 24 as described earlier.
  • the contact arms 64 and 66 are so mounted on the sleeve gear 51 in circumferential direction thereof, that their spacing corresponds to the printing line distance and so that the contacts 63 and 65 will be switched off upon printing of the head printing line 2 or head printing line 3. Following these head printing lines the desired selected lines in the example the lines 4, 5, 6 and 7 can now be selected and subsequently be printed together with the number of lines making up the head, that is the single head printing line or the dual or triple head printing lines.
  • a combination comprising a rotary printing roller including holding means for holding on said printing roller a printing form having a plurality of circumferentially spaced printing sections; a counter roller cooperating with said printing roller, one of said rollers being movable to and from a printing position closely proximal to and defining with the other roller a printing line; operating means for effecting movement of said one roller to and from said printing position; adjustable selecting means associated with said operating means for moving said one roller to said printing position and maintaining it in the same for selected different portions of the time required for one revolution of said printing roller, so that the number of printing sections passing through said printing line is a function of the selected time portion, said selecting means comprising at least two coaxial cam disks having circumferential cam track portions operative for engaging said operating means and moving said one roller to said printing position; signalling means for providing signals indicative of the printing sections selected for printing; actuating means associated with said signalling means and said selecting means for actuating
  • said printing roller being mounted for rotation about a first axis
  • said cam disks being turnable about a second axis paralleling said first axis
  • said cam plates being turnable about a third axis also paralleling said first axis.
  • a combination as defined in claim 1 said drive means comprising displacing means for effecting circumferential displacement of said cam disks relative to one another during part of ajoint revolution performed by said cam disks.
  • said cam disks turn in one direction during joint revolution thereof; and wherein said displacing means comprises electromagnetic coupling means actuatable for effecting turning of one of said cam disks in an opposite di rection. and cancelling means turnable with the respective cam disks for deactivating said electromagnetic coupling means when said one cam disk reaches a predetermined circumferentially displaced position relative to the other cam disk.
  • a combination comprising a rotary printing roller including holding means for holding on said printing roller a printing form hav' ing a plurality of circumferentially spaced printing sections; a counter roller cooperating with said printing roller, one of said rollers being movable to and from a printing position closely proximal to and defining with the other roller a printing line; operating means for ef fecting movement of said one roller to and from said printing position; adjustable selecting means associated with said operating means for moving said one roller to said printing position and maintaining it in the same for selected different portions of the time required for one revolution of said printing roller, so that the number of printing sections passing through said printing line is a function of the selected time portion, said selecting means comprising at least two coaxial cam disks having circumferential cam track portions operative for engaging said operating means and moving said one roller to said printing position; signalling means for providing signals indicative of the printing sections selected for printing; actuating means including a pair of
  • said cam disks turn in one direction during joint revolution thereof; and wherein said displacing means comprises electromagnetic coupling means actuatable for effecting turning of one of said cam disks in an opposite direction, and cancelling means turnable with the respective cam disks for deactivating said electromagnetic coupling means when said one cam disk reaches a predetermined circumferentially displaced position relative to the other cam disk.

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  • Rotary Presses (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
US352299A 1972-04-20 1973-04-18 Selectively printing rotary duplicator Expired - Lifetime US3874284A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2219940A DE2219940A1 (de) 1972-04-20 1972-04-20 Rotationsvervielfaeltiger zum zeilenoder abschnittweisen und ganzseitigen abdrucken von druckformen auf blaetter, karten od.dgl

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US3874284A true US3874284A (en) 1975-04-01

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US352299A Expired - Lifetime US3874284A (en) 1972-04-20 1973-04-18 Selectively printing rotary duplicator

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US (1) US3874284A (de)
JP (1) JPS4921215A (de)
AT (1) AT344209B (de)
BE (1) BE797252A (de)
CH (1) CH559109A5 (de)
DE (1) DE2219940A1 (de)
ES (1) ES413921A1 (de)
FR (1) FR2181351A5 (de)
GB (1) GB1397690A (de)
IT (1) IT982997B (de)
NL (1) NL7304029A (de)
SE (1) SE391489B (de)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2787212A (en) * 1954-04-07 1957-04-02 Ormig Organisations Mittel G M Solvent operated duplicating machine
US2843039A (en) * 1955-05-28 1958-07-15 Ritzerfeld Wilhelm Selective printing process and apparatus
US3090287A (en) * 1959-04-03 1963-05-21 Ritzerfeld Wilhelm Xerographic duplicating machine
US3109355A (en) * 1959-04-03 1963-11-05 Ritzerfeld Wilhelm Xerographic duplicator
US3245364A (en) * 1964-06-22 1966-04-12 Frederic Weinberg Company Table with hidden collapsing mechanism
US3283706A (en) * 1963-12-17 1966-11-08 Ritzerfeld Gerhard Multiple control arrangement for selective printing machines
US3420163A (en) * 1966-04-18 1969-01-07 Gerhard Ritzerfeld Numbering arrangement for selective printing machines
US3530793A (en) * 1965-09-30 1970-09-29 Gerhard Ritzerfeld Method and apparatus for printing and recording on a card
US3714893A (en) * 1972-03-15 1973-02-06 Weber Marking Systems Inc Rotary label printing machine with adjustable rotor cam for separating the printing couple

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2787212A (en) * 1954-04-07 1957-04-02 Ormig Organisations Mittel G M Solvent operated duplicating machine
US2843039A (en) * 1955-05-28 1958-07-15 Ritzerfeld Wilhelm Selective printing process and apparatus
US3090287A (en) * 1959-04-03 1963-05-21 Ritzerfeld Wilhelm Xerographic duplicating machine
US3109355A (en) * 1959-04-03 1963-11-05 Ritzerfeld Wilhelm Xerographic duplicator
US3283706A (en) * 1963-12-17 1966-11-08 Ritzerfeld Gerhard Multiple control arrangement for selective printing machines
US3245364A (en) * 1964-06-22 1966-04-12 Frederic Weinberg Company Table with hidden collapsing mechanism
US3530793A (en) * 1965-09-30 1970-09-29 Gerhard Ritzerfeld Method and apparatus for printing and recording on a card
US3420163A (en) * 1966-04-18 1969-01-07 Gerhard Ritzerfeld Numbering arrangement for selective printing machines
US3714893A (en) * 1972-03-15 1973-02-06 Weber Marking Systems Inc Rotary label printing machine with adjustable rotor cam for separating the printing couple

Also Published As

Publication number Publication date
GB1397690A (en) 1975-06-18
NL7304029A (de) 1973-10-23
SE391489B (sv) 1977-02-21
ES413921A1 (es) 1976-05-16
CH559109A5 (de) 1975-02-28
DE2219940A1 (de) 1973-10-31
JPS4921215A (de) 1974-02-25
ATA200273A (de) 1977-11-15
BE797252A (fr) 1973-07-16
AT344209B (de) 1978-07-10
FR2181351A5 (de) 1973-11-30
IT982997B (it) 1974-10-21

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JPS582599Y2 (ja) 印刷機の給紙停止回路