US3489081A - Apparatus for printing selected numbers of lines - Google Patents

Apparatus for printing selected numbers of lines Download PDF

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Publication number
US3489081A
US3489081A US801994A US3489081DA US3489081A US 3489081 A US3489081 A US 3489081A US 801994 A US801994 A US 801994A US 3489081D A US3489081D A US 3489081DA US 3489081 A US3489081 A US 3489081A
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Prior art keywords
printing
lines
cams
cam
actuating
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Expired - Lifetime
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US801994A
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English (en)
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Gerhard Ritzerfeld
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Individual
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Individual
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Priority claimed from DE19681611542 external-priority patent/DE1611542A1/de
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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
    • B41L11/00—Apparatus for directly duplicating from hectographic masters in mirror image, i.e. "wet duplicators" for producing positive copies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2700/00—Manifolding, printing or duplicating for office purposes
    • B41P2700/10—Hectographic line duplicators

Definitions

  • Printing machines particularly rotary duplicating machines, are known which can be operated to print a selected number of lines under the control of printing cams respectively associated with different numbers of printing lines. It is also known to automatically reset the printing cams by a spring biassed stepping mechanism so that the next follOWing group of lines is printed.
  • the selection of the printing of one, two or several lines is carried out by a complicated mechanism which requires great manual force for the operation, and further two motions in transverse direction, namely an arresting or releasing movement, and a movement by which the selection is effected.
  • Another object of the invention is to provide an apparatus for printing selected numbers of lines which can be set by a manually operated mechanic-a1 linkage to print different numbers of lines.
  • Another object of the invention is to provide a turnable manually operated member which controls the selection of a printing cam associated with the selected number of lines, and also effects the automatic resetting of the printing cam after the printing operation.
  • the present invention relates to an apparatus which can be set to print a single line or a group of lines, and which is automatically reset to print the next following single line, or the next following group of lines of the printing form.
  • One embodiment comprises printing means such as a printing roller carrying a printing form; operating means for the printing means including cam follower means having an operative position for causing printing of successive lines, preferably by counter pressure roller; a predetermined number of printing cams respectively correlated with different numbers of lines and having operative positions for moving the cam follower means to the operative position for causing the printing means to print different numbers of lines, respectively; drive means for the printing means and for rotating the printing cams in a printing direction; a biassed stepping ice mechanism preferably including pawl means and a ratchet wheel connected with the printing cams for rotation, and having a normal position blocking rotation of the printing cams in the direction opposite to the printing direction, and a released position for turning the printing cams in the opposite direction; a plurality of actuating means respectively associated with different numbers of lines and being movable between inoperative and actuating positions for moving the stepping mechanism to the released position after rotation of the printing cams in the printing direction for causing the printing of the respective number of lines, and for respectively holding the
  • Linkage means connect the manually operated means with the printing cams so that in each selecting position of the manually operated means, the printing cam correlated with the respective number of lines is in the operative position cooperating with the cam follower means, while the printing cams associated with different numbers of lines, are placed by the linkage means in an inoperative position spaced from the cam follower means.
  • the linkage means by which the printing cams are shifted between the inoperative and operative positions are also operatively connected with the control cam means which control the resetting of the printing cams after the printing operation so that the placing of the manually operated means in one Selecting position, the respective printing cam is rendered operative, and the stepping mechanism is actuated to reset the printing cams automatically after the printing of the selected number of lines.
  • the stepping mechanism preferably includes pawl means and a ratchet wheel connected to the printing cams for rotation.
  • the actuating means include a supporting arm and a roller on the same engaged by the pawl means during rotation of the stepping mechanism so that the pawl means releases the ratchet wheel permitting the spring of the stepping mechanism to turn the printing cams in the direction opposite to the direction in which the printing of lines was effected.
  • Setting means move the actuating means out of the circular path of movement of the pawl means, when automatically setting of the printing cam by the stepping mechanism is not desired.
  • the apparatus of the invention permits all operations for printing successive groups of lines on successive copy sheets, and is controlled by manually operated means which are turnable between selecting positions associated with different numbers of lines of each group, and need not be shifted in axial or transverse directions.
  • FIG. 1 is a side elevation, partially in section, illustrating a printing machine without one side wall
  • FIG. 2 is a fragemntary plan view illustrating the printing machine of FIG. 1;
  • FIG. 3 is a fragmentary side elevation, partially in vertical section, illustrating on an enlarged scale, parts of the printing machine not visible or omitted in FIG. 1;
  • FIG. 3a is an axial sectional view on an enlarged scale taken on line 3a3a in FIG. 1.
  • a printing drum 5 carrying a printing form 46 with text lines extending in axial direction is mounted on a drive shaft 4, and can be connected with the same by a one-revolution clutch, not shown.
  • a gear 1 is fixed to drive shaft 4 and drives through gear 2 a gear 3 secured to a second drive shaft 6.
  • a stepping mechanism is mounted on drive shaft 6 and includes a driven member 7 secured to shaft 6 and carrying a locking pawl 8 and a shifting pawl 9 which are respectively biassed by springs 56 and 55 to engage a ratchet wheel 10 so that the same rotates in clockwise direction with drive member 7 and pawl means 8, 9.
  • Ratchet wheel 10 is fixed to a flanged bushing 11 which carries a printing cam 12 associated with the printing of a single line, and having a cam lug short in circumferential direction.
  • Bushing 11 is connected by a key 13 with a shifting flange 14 to which printing cams 15 and 16 are fixedly secured, and which are respectively correlated with the printing of three and two lines, and have cam lugs of different circumferential length as shown in FIG. 3.
  • Shafts 4 and 6 rotate printing earns 12, 15 and 16 in clockwise direction.
  • Printing cams 15 and 16 are movable with shifting member 14 in axial direction between inoperative position spaced from the cam follower roller 17, and operaitve positions engaging the same when rotating with shaft 6 in clockwise direction.
  • Cam follower roller 17 is mounted on a lever 18 turnable about a pivot 19 and having a stud located in a slot of a lever 20.
  • a bail 34 is mounted on a shaft 35 for angular movement and has a pair of legs carrying slide members 39 and 40 which are in sliding contact with shifting member 14 which is secured to printing cams 15 and 16 so that by angular displacement of bail 34, printing cams 15 and 16 can be shifted between operative and inoperative positions.
  • the drawing shows the printing cams 15 and 16 adjacent printing cam 12 in operative positions so that a group of three lines is printed when the lugs of printing cams 12, 16 and 15 engage and displace cam follower means 17 and 18.
  • a link 33 is secured by a pair of screws 34a to a lower leg of bail 34, and is pivotally connected by a pivot to a link 32 which is articulated to a lever 29 which has an elongated slot 29a.
  • Lever 29 is mounted on a stationary support 31 for angular movement.
  • a spring 45 connects an arresting lever 42 with support 31 so that arresting lever 32 engages with corresponding arresting recesses, an arresting roller 41.
  • Arresting lever 42 is mounted on a pivot means 43 supported by a bracket on the frame of the machine.
  • a manually operated means is mounted for turning movement, and includes a handle or hand wheel 28, and a rod 28a Whose end portion 28b is cranked and located in slot 290.
  • crank portion 28b moving in slot 29a, angularly displaces lever 29 and shifts link 32 with arresting roller 41 which successively enters arresting recesses of spring biassed lever 24, and angularly displaces link 33 with bail 34 for shifting printing earns 15 and 16 between the operative and inoperative positions.
  • printing cams 15 and 16 are in the operative position so that three successive lines of the printing form are printed when cam follower roller 17 is displaced by the printing cams, particularly by print ing cam 15 which is associated with three lines and has the longest lug in circumferential direction.
  • the above-described construction effects setting of the machine to the printing of one, two or three lines by merely turning the manually operated means 28 between a plurality of angularly displaced selecting positions respectively associated with the printing of one, two and three lines.
  • the manually operated means 28 is placed in a corresponding position so that linkage means 29, 32, 33, 34 renders printing cams 15 and 16 inoperative by moving the same axially out of the region of cam follower means 17, 18.
  • the stud 52 in a slot of actuating lever 51 holds the same in an angular position in which roller 49 is located in the path of pawl 9 and its tooth 54, as best seen in FIG. 1.
  • shifting pawl 9 is pressed by the actuating roller 49 into a notch of ratchet wheel 10, while locking pawl 8 is operated to release the ratchet wheel.
  • the spiral spring 53 pulls bushing 11 together with printing cams 12, 15 and 16, and with ratchet wheel 10, to turn in the counter clockwise direction of the arrow F until a flank of a tooth of ratchet wheel abuts the tooth 54 of shifting pawl 9.
  • springs 55 and 56 pull the pawl means 8 and 9 back to its initial position shown in FIG. 3 so that shifting pawl 9 releases the ratchet wheel 10, and spiral spring 53 pulls ratchet wheel 10 to a position in which the next tooth thereof abuts locking pawl 8 so that printing cam 12 is reset to a position in which during the next revolution of printing roller 5 with master sheet 46, the next following line is printed.
  • the spiral spring 53 can be tensioned, and the stepping mechanism wound up by a motor driven gear 57 meshing with gear 58 on bushing 11.
  • two control earns 59 and 60 are mounted on setting means 47 for angular movement about a pivot 61 and 62.
  • Control earns 59 and 60 are connected for simultaneous angular movement by rivetted pivots 63, 64 and a link 65.
  • control cam 16 engages control cam 16 and angularly displaces the same about its pivot 62, and this angular movement is transmitted by link 55 to the control cam 59 which is associated with the printing of groups of three lines.
  • control cam 60 associated with the printing of two lines, engages actuating lever 69, which is mounted in a bearing bracket 67 on a shaft 68 for angular movement, and carries an actuating roller 71 which is normally located outside of the path of movement of shifting pawl 9.
  • the angularly displaced control cam 60 displaces the actuating means 69, 71 against the action of spring 70 to the position shown in FIG. 2 in which actuating roller 71 is located in the circular path of movement of shifting pawl 9 which rotates about the axis of shaft 6 together with driven member 7. Due to the shape of the second control cam 59, actuating means 72, 73 is still inoperative, and not placed in the path of shifting pawl 9, and it may be noted that FIG. 2 does not show control earns 59 and 60, in the position for the presently described operation of printing two lines, but in an actuated position for the printing of three lines.
  • shifting pawl 9 is engaged by actuating means 69, 71 and the stepping mechanism is operated to turn the printing cam 12, 15 and 16 two steps back.
  • linkage 29, 32, 33, 34 shifts printing cams 15 and 16 to a position in which they engage cam follower 17 and 18 during rotation of printing roller 5 and ratchet wheel 10 so that three lines are printed.
  • the corresponding angular displacement of link 33 further turns control cam 60 to the position shown in FIG. 2 so that control cam 59 is turned to the position shown in FIG.
  • actuating means 72, 73 also move to the actuated position located in the path of movement of shifting pawl 9 whereby the same is operated to release ratchet wheel 10, permitting the resetting of printing cams 12, 15 and 16 in the counter clockwise direction of the arrow F for three steps so that during the next following printing operation, the next group of three lines is automatically printed.
  • first actuating means 72, 73, and then actuating means 71, 69 turn under the action of springs 74 and 70, respectively, to the inoperative position in which rollers 73 and 71 are located outside of the path of shifting pawl 9 so that a single line is automatically printed under the control of actuating means 51, 49 and of printing cam 12.
  • setting means 47 When the automatic resetting and transport of the printing cams is not desired, and setting means 47 is released from its illustrated position, and shifted in longitudinal direction until the arresting means 48 engages the arresting recess 75 in setting means 47. Since actuating means 69, 71 and 72, 73 are mounted on setting means 47, they are displaced to an inoperative position in which they cannot be engaged by control cams 60 and 59 when the same are displaced by link 33. Actuating lever 51 with actuating roller 49 is also displaced to an inoperative position in which roller 49 is located outside of the path of shifting pawl 9.
  • Apparatus for printing selected numbers of lines comprising printing means; operating means for said printing means including cam follower means having an operative position for causing printing of successive lines; a predetermined number of printing cams respectively correlated with different numbers of lines and having operative positions for moving said cam follower means to said operative position for causing said printing means to print different numbers of lines, respectively, and inoperative positions; drive means for said printing means and for rotating said printing cams in a printing direction; a biassed stepping mechanism connected with said printing cams for rotation and having a normal position blocking rotation of said printing cams in the direction opposite to said printing direction, and a released position for turning said printing cams in said opposite direction; a plurality of actuating means respectively associated with different numbers of lines, each actuating means being movable between an inoperative position and an actuating position for moving said stepping mechanism to said released position after rotation of said printing cams in said printing direction for causing the printing of the respective number of lines, and for respectively holding said stepping mechanism in said released position while the same resets said
  • control cam means include a plurality of control cams respectively associated with different numbers of lines; and wherein said manually operated means operate successive control cams in successive angularly displaced selecting positions.
  • Apparatus as claimed in claim 4 comprising a setting means connected with said actuating means and having a normal position in which said actuating means are operated by said control cam means, and a displaced position in which said actuating means are spaced from said control cam means and are not operated by the same so that said stepping mechanism does not turn said printing cams in said opposite direction.
  • said stepping mechanism includes a rotary driven member driven by said drive means, spring loaded pawl means mounted on said driven member, a ratchet wheel engaged in said normal position by said pawl means and blocked by the same against rotation in said opposite direction, and released by the same in said releasing position, said ratchet wheel being connected with said printing cams for rotation, and spring means connected with said ratchet wheel for biassing the same to turn with said printing cams in said opposite directions when said pawl means release said ratchet wheel; and wherein said actuating means in said actuating position are located in the path of said pawl means during rotation of said driven member so that said spring loaded pawl means is operated by said actuating means to release said ratchet wheel, and then engages the same when said pawl means has passed beyond said actuating means.
  • Apparatus as claimed in claim 1 comprising a driven member rotated by said stepping mechanism; wherein said printing cams are mounted on said driven member axially movable on the same between inoperative positions spaced from said cam follower means, and said operative positions, said printing cams being connected with said driven member for rotation, and comprising means for moving said printing cams selectively between said inoperative and operative positions.
  • said means for moving said printing cams include linkage means connected with said manually operated means and displaced by the same in said selecting positions of the same to move the respective printing cam to the operative position thereof so that in each selecting position of said manually operated means, the cam correlated with the respective number of lines is in said operative position cooperating with said cam follower means.
  • Apparatus as claimed in claim 9 comprising a shifting member secured to said printing cams for rotation and axial movement, and having an annular guide means; and wherein said linkage means include a bail mounted for turning movement and having slide members secured slidably guided on said guide means so that when said linkage means with said bad is displaced by said manually operated means, said printing cams are axially displaced between said inoperative and operative positions.
  • said linkage means include a lever having a guide slot; and wherein said manually operated means includes a rod having a cranked end portion located in said guide slot so that turning movement of said manually operated means with said rod displaces said lever and linkage means.
  • said printing cams are individually movable between inoperative positions spaced from said cam follower means and said operative positions; comprising link-age means connecting said manually operated means with said printing cams so that in each selecting position of said manually operated means, the printing cam correlated with the respective number of lines is in said operative position cooperating with said cam follower means; wherein said linkage means is operatively connected with said control cam means for operating the same under the control of said manually operated means, and comprising an actuating means correlated with a single printed line, and being connected with said linkage means and operated b the same between an inoperative position, and an actuated position for moving said stepping mechanism to said released position; and a printing cam for causing printing of a single line having only one position cooperating with said cam follower means and being driven by said drive means so that only single lines are printed in one selecting position of said manually operated means in which the printing cams of said plurality of printing cams are in said inoperative position.
  • Apparatus for printing selected numbers of lines comprising printing means; operating means for said printing means including cam follower means having an operative position for causing printing of successive lines; a predetermined number of printing cams respectively correlated with different numbers of lines and having operative positions for moving said cam follower means to said operative position for causing said printing means to print difierent numbers of lines, respectively, and inoperative positions; drive means for said printing means and for rotating said printing cams in a printing direction; a biassed stepping mechanism connected with said printing cams for rotation and having a normal position blocking rotation of said printing cams in the direction opposite to said printing direction, and a released position for turning cams in said opposite direction; a plurality of actuating means respectively associated with different numbers of lines, each actuating means being movable between an inoperative position and an actuating position for moving said stepping mechanism to said released position after rotation of said printing cams in said printing direction for causing the printing of the respective number of lines, and for respectively holding said stepping mechanism in said released position while the same resets

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US801994A 1968-02-29 1969-02-25 Apparatus for printing selected numbers of lines Expired - Lifetime US3489081A (en)

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Application Number Priority Date Filing Date Title
DE19681611542 DE1611542A1 (de) 1968-02-29 1968-02-29 Rotationsvervielfaeltiger zum zeilen- und abschnittweisen Abdrucken von Druckformen

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US3489081A true US3489081A (en) 1970-01-13

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US801994A Expired - Lifetime US3489081A (en) 1968-02-29 1969-02-25 Apparatus for printing selected numbers of lines

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US (1) US3489081A (de)
JP (1) JPS4813362B1 (de)
AT (1) AT309478B (de)
BE (1) BE727575A (de)
ES (1) ES363785A1 (de)
FR (1) FR2002869A1 (de)
GB (1) GB1213605A (de)
SE (1) SE348976B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3995546A (en) * 1972-04-18 1976-12-07 Gerhard Ritzerfeld Rotary duplicating machine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2536276A (en) * 1941-09-29 1951-01-02 Gretchikhine Nicolas Selective bed and cylinder printing machine
US2980014A (en) * 1956-12-28 1961-04-18 Block & Anderson Ltd Hectographic duplicating machines
US3083638A (en) * 1960-08-10 1963-04-02 Ritzerfeld Wilhelm Automatic selective duplicator
US3220342A (en) * 1963-06-07 1965-11-30 Ritzerfeld Wilhelm Program controlled machine for printing selected text sections
US3245367A (en) * 1963-04-26 1966-04-12 Ritzerfeld Wilhelm Printing machine for printing on different kinds of copy sheets
US3283700A (en) * 1963-08-20 1966-11-08 Ormig Organisations Mittle G M Selective printing machine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2536276A (en) * 1941-09-29 1951-01-02 Gretchikhine Nicolas Selective bed and cylinder printing machine
US2980014A (en) * 1956-12-28 1961-04-18 Block & Anderson Ltd Hectographic duplicating machines
US3083638A (en) * 1960-08-10 1963-04-02 Ritzerfeld Wilhelm Automatic selective duplicator
US3245367A (en) * 1963-04-26 1966-04-12 Ritzerfeld Wilhelm Printing machine for printing on different kinds of copy sheets
US3220342A (en) * 1963-06-07 1965-11-30 Ritzerfeld Wilhelm Program controlled machine for printing selected text sections
US3283700A (en) * 1963-08-20 1966-11-08 Ormig Organisations Mittle G M Selective printing machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3995546A (en) * 1972-04-18 1976-12-07 Gerhard Ritzerfeld Rotary duplicating machine

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Publication number Publication date
SE348976B (de) 1972-09-18
AT309478B (de) 1973-08-27
JPS4813362B1 (de) 1973-04-26
ES363785A1 (es) 1970-12-16
BE727575A (de) 1969-07-01
FR2002869A1 (de) 1969-10-31
GB1213605A (en) 1970-11-25

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