US3334721A - Printing structure having plural type wheels - Google Patents

Printing structure having plural type wheels Download PDF

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Publication number
US3334721A
US3334721A US468263A US46826365A US3334721A US 3334721 A US3334721 A US 3334721A US 468263 A US468263 A US 468263A US 46826365 A US46826365 A US 46826365A US 3334721 A US3334721 A US 3334721A
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United States
Prior art keywords
hollow shaft
rotation
type
axis
support member
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US468263A
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English (en)
Inventor
John E Hickerson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Priority to US468263A priority Critical patent/US3334721A/en
Priority to GB19672/66A priority patent/GB1122096A/en
Priority to NL6608621A priority patent/NL6608621A/xx
Priority to CH920566A priority patent/CH445526A/de
Priority to DE19661561227 priority patent/DE1561227A1/de
Priority to ES0328465A priority patent/ES328465A1/es
Priority to BE683453D priority patent/BE683453A/xx
Priority to FR7891A priority patent/FR1485065A/fr
Application granted granted Critical
Publication of US3334721A publication Critical patent/US3334721A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J7/00—Type-selecting or type-actuating mechanisms
    • B41J7/54—Selecting arrangements including combinations, permutation, summation, or aggregation means
    • B41J7/56—Summation devices for mechanical movements
    • B41J7/60—Levers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J1/00—Typewriters or selective printing mechanisms characterised by the mounting, arrangement or disposition of the types or dies
    • B41J1/22—Typewriters or selective printing mechanisms characterised by the mounting, arrangement or disposition of the types or dies with types or dies mounted on carriers rotatable for selection
    • B41J1/32—Typewriters or selective printing mechanisms characterised by the mounting, arrangement or disposition of the types or dies with types or dies mounted on carriers rotatable for selection the plane of the type or die face being parallel to the axis of rotation, e.g. with type on the periphery of cylindrical carriers
    • B41J1/44—Carriers stationary for impression
    • B41J1/46—Types or dies fixed on wheel, drum, cylinder, or like carriers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J1/00—Typewriters or selective printing mechanisms characterised by the mounting, arrangement or disposition of the types or dies
    • B41J1/22—Typewriters or selective printing mechanisms characterised by the mounting, arrangement or disposition of the types or dies with types or dies mounted on carriers rotatable for selection
    • B41J1/32—Typewriters or selective printing mechanisms characterised by the mounting, arrangement or disposition of the types or dies with types or dies mounted on carriers rotatable for selection the plane of the type or die face being parallel to the axis of rotation, e.g. with type on the periphery of cylindrical carriers
    • B41J1/44—Carriers stationary for impression
    • B41J1/54—Types or dies movable on wheel, drum, cylinder or like carriers

Definitions

  • This invention relates to a rotary printing head and, more particularly, to a rotary printing head for typewriters or the like in which each character to be printed may be rapidly selected with all movements to position a character for printing occurring simultaneously.
  • the present invention satisfactorily solves the foregoing problems by providing a printing head having a high character capacity.
  • the present invention utilizes a plurality of rotatably mounted type heads, which may be quickly moved to the printing position, with each of the type heads having a plurality of characters arranged thereon in columns and rows.
  • the present invention not only causes simultaneous movement of all of the mechanisms to position the selected character at the printing position, but it also eliminates any type of differential movement between the various moving members.
  • the present invention elimi-' nates the movement of any of the members effecting the movement of any of the other members so that a simple construction is produced.
  • the amount of movement in any direction is substantially reduced by having three different coordinates of movement.
  • An object of this invention is to provide a comparatively small printing head having a large number of characters thereon.
  • Another object of this invention is to provide a rotary printing head in which all necessary movements to position a selected character at a printing position occur simultaneously.
  • a further object of this invention is to provide a rotary printing device having a plurality of rotatably mounted type heads thereon.
  • FIG. -1 is a perspective view, partly in section, of one form of the rotary printing device of the present invention.
  • FIG. 2 is a perspective View illustrating actuating mechanisms for use with the structure of FIG. 1.
  • FIG. 3 is a perspective view of one of the type heads of the present invention.
  • FIG. 4 is a side elevational view of another modification of the rotary printing device of the present invention.
  • FIG. 5 is a top plan view of a portion of the structure of FIG. 4.
  • the support member 1 includes a I cylindrical center portion 2 having a disc 3 formed integral with its upper end and a disc 4 formed integral with its lower end.
  • the support member 1 has a hollow shaft 5 centrally disposed with respect thereto and extending from the lower c 4. If desired, the cylindrical portion 2 of the support member 1 could be eliminated and the hollow shaft 5 extended upwardly to at least the disc 3.
  • a plurality of type heads 6 is rotatably mounted on the support member 1 between the discs 3 and 4.
  • Each of the type heads 6 is fixed to a shaft 7, which preferably extends through the type head 6 and projects from either end thereof.
  • the lower end of each of the shafts 7 is received in an opening 8 in the lower disc 4 of the support member -1.
  • the upper end of each of the shafts 7 extends through an opening 9 in the upper disc 3.
  • the openings 8 and 9 are disposed the same radial distance from the axis of rotation of the support member 1. Thus, when the support member 1 rotates, the type heads 6 rotate therewith about the axis of rotation of the support member 1.
  • each of the shafts 7 extending beyond the upper disc 3 has a planetary gear 10 secured thereto.
  • the type head 6 rotates about the axis of the shaft 7 with respect to the support member 1.
  • each of the type heads 6 is formed with a plurality of characters thereon arranged in vertical columns and horizontal rows. The characters in each of the columns are spaced from each other.
  • each of the vertical columns is disposed substantially ninety degrees with respect to each of the adjacent columns.
  • the four characters in each of the rows actually face ninety degrees 3 (see FIG. 3). This insures that only one character will be printed.
  • the number of horizontal rows and the number of vertical columns would depend upon the required number of characters.
  • eight of the type heads 6 with four vertical columns and four vertical rows, a total of 128 characters is available for selection.
  • the number of rows of characters and the number of columns of characters may be varied as desired.
  • the number of the type heads 6 may be varied as desired. Accordingly, the rotary printing device of the present invention has a high character capacity and is much smaller than other types of printing heads having the same or less character capacity.
  • Each of the planetary gears 10 has its teeth meshing with teeth on a sun gear 11, which is attached to the upper end of a hollow shaft 12.
  • the shaft 12 extends through the cylindrical center portion 2 of the support member 1 and has its lower end disposed within the interior of the hollow shaft 5.
  • the shaft 12 extends through the upper disc 3 and the lower disc 4 of the support member 1 and is rotatably mounted with respect to the support member 1.
  • a hearing 14 surrounds the shaft 12 between the upper surface of the disc 3 and the lower surface of the sun gear 11.
  • a second bearing 15 surrounds-the shaft 12 adjacent the lower surface of the lower disc 4 of the support member 1. Both of the bearings 14 and 15 are secured to the shaft 12.
  • the sun gear 11 rotates all of the planetary gears 10 to rotate all of the type heads 6 about the axes of the shafts 7.
  • the amount of rotation'of the shaft 12 determines the particular vertical column of characters on the type head 6 that is to be presented at the printing position.
  • the particular type head 6, which is to be disposed at the printing position is determined by rotation of the support member 1 through rotation of the hollow shaft 5-
  • the hollow shaft 5 has a gear 16 formed on its outer wall.
  • the teeth of the gear 16 mesh with teeth of a gear 17.
  • the teeth of the gear 17 are of sufficient length so that the hollow shaft 5 may move axially and still have the teeth of the gear 16 mesh with the teeth of the gear 17.
  • the support member 1 is rotated about its axis of rotation, which is the axis of rotation of the hollow shaft 5, to position one of the type heads 6 at the printing position.
  • the printing position is where a face of a pivotally mounted hammer 18 engages one of the characters on one of the type heads 6.
  • a movable printing hammer is shown in US. Patent 2,757,775 to Hickerson. Since any type of pivotally mounted hammer may be employed, the hammer 18 will not be described in detail herein. It should be understood that movement of the hammer 1-8 will cause its face to move a sheet of paper 19 and a ribbon 20 into engagement with one of the characters on the type head 6, which is positioned for engagement by the face of the hammer 18.
  • the lower end of the hollow shaft 12 has a pin or stud 21 attached thereto and extending through an axial slot 22 in a hollow shaft 23.
  • the axis of the hollow shaft 23 is aligned with the axis of the hollow shaft '5 and the axis of the hollow shaft 12.
  • the hollow shaft 23 has a cam slot 24 formed in its wall and extending therethrough.
  • a pin or stud 25 which is attached to the upper end of a hollow shaft 26, extends through the cam slot 24 in the hollow shaft 23.
  • the lower end of the hollow shaft 23 has an annular groove 27 formed therein to receive a pin or stud 28, which is secured to a fixed portion 29 of a typewriter or the like with which the rotary printing device of the present invention may be utilized.
  • the hollow shaft 23 may not be moved axially due to the pin or stud 28 riding within the annular groove 27 at the lower end of the hollow shaft 23.
  • the lower end of the hollow shaft 26 has an annular groove 30 formed therein.
  • One end of a pivotally mounted bellcrank 31 has a pair of opposed fingers 32 disposed within the annular groove 30.
  • the pin or stud 25 causes rotation of the hollow shaft 23 due to cooperation between the pin 25 and the cam slot 24 in the hollow shaft 23.
  • the rotation of the hollow shaft 23 about its axis causes rotation of the hollow shaft '12 about its axis due to the connection of the hollow shaft 12 with the hollow shaft 23 through the pin 21 riding in the axial slot 22.
  • the rotation of the hollow shaft 12 causes the sun gear 11 to rotate all of the planetary gears 10 whereby one of the vertical columns on one of the type heads is presented in the vertical plane of the printing position.
  • the hollow shaft 26 may be moved axially relative to the hollow shaft 5 without effecting axial movement'of the hollow shaft 5.
  • any rotative movement of the hollow shaft 5 will cause rotation of the hollow shaft 26 about its axis.
  • this arrangement allows the shaft 26 to be moved axially by the bellcrank 31 at the same time that the hollow shaft 5 is being rotated. Accordingly, the desired vertical column of the desired type head 6 may be positioned in the vertical plane of the printing position at the same time that the desired type head 6 is being moved to the printing position by rotation of the hollow shaft 5.
  • Axial movement of the support member 1 is produced by a pivotally mounted bellcrank 34.
  • One end of the bellcrank 34 has opposed fingers 35, which ride in an annular groove 36 at the lower end of the hollow shaft 5.
  • the arrangement of the fingers 35 riding within the groove 36 permits the hollow shaft 5 to rotate with respect to the bellcrank 34.
  • the bellcrank 31 has a link 37 pivotally connected to its end remote from the fingers 32.
  • the link 37 causes movement of the bellcrank 31 in accordance with the typewriter key that is actuated.
  • the link 37 is pivotally connected to a bellcrank 38, which is connected to an output link 39 of a linkage system of the type shown in US. Patent 2,919,002 to Palmer.
  • this type of linkage which is known as a whiflietree, produces a varying output depending on the key actuated.
  • the amount of movement of the bellcrank 31 determines the particular column of the four vertical columns on the type head 6 to be presented at the printing position.
  • the output or connecting link 39 is connected to a floating link 40, which is connected to each of links 41 and 42.
  • a rod 43 is secured to the link 41, and a rod 44 is attached to the link 42.
  • Each of the rods 43 and 44 is moved in accordance with the actuated key. Thus, if neither of the rods 43 and 44 is moved, the type head 6 is not rotated about its axis. However, actuation of the rod 43 will cause presentation of one of the other-three columns at the printing position, actuation of the rod 44 will cause presentation of a second of the other three columns at the printing position, and actuation of both of the rods 43 and 44 results in the third of the other three columns being moved to the printing position.
  • all of the typewriter keys having characters in a particular vertical column on all of the type heads 6 will produce the same amount of rotation of the type heads 6 about their axes of rotation.
  • the selected character determines whether one, both, or neither of the rods 43 and 44 are actuated.
  • the bellcrank 34 is connected to a link 45 at the end remote from the fingers 35.
  • the amount of movement of the bellcrank 34 is determined by movement of the link 45, which is connected through a bellcrank 46 to a second linkage system such as of the type shown and described in the aforesaid Palmer patent.
  • the amount of movement of the bellcrank 34 determines the particular horizontal row that is disposed in the horizontal plane of the printing position. Accordingly, all of the typewriter keys having characters in one of the horizontal rows produce the same amount of movement of the bellcrank 34.
  • the gear 17 has a shaft 47 attached thereto with a gear 48 secured to the lowermost portion of the shaft 47.
  • a rack 49 has teeth thereon to mesh with the gear 48 to rotate the gear 17 whereby the hollow shaft 5 is rotated about its axis of rotation.
  • the other end of the rack 49 is connected to a bellcrank 50, which is actuated by a linkage system of the type shown and described in the aforesaid Palmer patent.
  • the amount of movement of the rack 49 determnies the amount of rotation of the hollow shaft 5. This determines the type head 6 that is to be positioned with one of its vertical columns in the vertical plane of the printing position. Actuation of any key having any of the characters on any one of the type heads 6 will produce the same amount of movement of the rack 49.
  • actuation of a typewriter key produces three simultaneous movements. These are rotation of the hollow shaft 5 about its axis of rotation to position one of the type heads 6 adjacent the hammer 18, axial movement of the hollow shaft 5 to position one of the horizontal rows of the type head 6 in the same horizontal plane as the face of the printing hammer 18, and rotation of the type heads 6 about their axes of rotation by the sun gear 11 to dispose one of the vertical columns in the vertical plane of the face of the hammer 18.
  • V As another example, if the letter F has been typed and it is desired to type a letter in the same horizontal row on another of the type heads 6 as the next character, the
  • key may cause movement of only one of the gear 17 and the bellcranks 31 and 34.
  • a shift key is not necessary with the rotary printing head of the present invention. However, if a shift key is desired to reduce the number of keys on the typewriter, then either the top two horizontal rows or the bottom two horizontal rows must be allocated to the upper case letters or half of the type heads 6 must have the lower case letters thereon and the other half of the type heads 6 must have the upper case characters thereon.
  • a pawl 55 (see FIG. 1) is pivotally mounted for cooperation with the teeth on the gear 16 ot prevent movement of the hollow shaft 5 about its axis of rotation after the character has been selected until printing of the selected character is completed.
  • the gear 17 has a sufficient length to compensate for the axial motion of the hollow shaft 5
  • the pawl 55 also has sulficient length to provide for this compensation.
  • a spring constantly urges the pawl 55 into engagement with the teeth of the gear 16.
  • a cam 55 (see FIG. 2), which is mounted on a shaft 57,- cooperates with a portion of the pawl 55 to prevent thespring from moving the pawl 55 into engagement with the teeth of the gear 16 until the selected character is at the printing position. As soon as the selected character has been printed, the cam 56 withdraws the pawl 55 from engagement with the gear 16.
  • a second detent means is employed to prevent axial movement of the hollow shaft 5 after the selected character is at the printing position until after the selected character has been printed;
  • the second detent means includes a plurality of annular teeth 58, which are formed on the exterior of the hollow shaft 5, and a pivotally mounted pawl 59.
  • the pawl 59 is urged into engagement 'with the teeth 55 by a spring (not shown).
  • a cam 60 which is mounted on the shaft 57, cooperates with a portion of the pawl 59 to overcome the force of l the axial motion of the the spring and remove the pawl 59 from engagement with the teeth 58.
  • the cam 60 cooperates with the pawl 59 to allow the spring to move the pawl 59 into engagement with the teeth 58 on the hollow shaft to prevent axial movement of the hollow shaft 5.
  • the cam 60 moves the pawl 59 to overcome the force of the spring and remove the pawl 59 from engagement with the teeth 58.
  • detent means could be employed in addition to or rather than those described.
  • the top of one of the shafts 7 could have a square projection thereon for cooperation with a square hole in an additional detenting pawl (not shown).
  • this pawl would always be moved into engagement with the square end at the top of one of the shafts 7, which would be located at a specific position in alignment with the position of the pawl.
  • the actuation of a character key on the typewriter creates movements to position the. selected character at the printing position, which is defined by the face of the hammer 18 engaging the selected character.
  • the actuation of the key will cause movement of at least one of the bellcranks 31 and 34 and the gear 17 when a different character is selected. Furthermore, it may result in movement of all three depending upon the selected character.
  • the support member 1 When actuation of the character key on the typewriter causes rotation of the gear 17, the support member 1 is rotated about its axis of rotation to position one of the type heads 6 at the printing position. Simultaneously, the bellcrank 31, if it is actuated, causes axial movement of the hollow shaft 26. The axial motion of the hollow shaft 26 is translated by the hollow shaft 23 into rotation of the hollow shaft 12 whereby the sun gear 11 rotates the planetary gears 10. As a result, the type heads 6 rotate about their axes of rotation, which are the axes of the shafts 7, to position one of the vertical columns of characters in the vertical plane of the printing position.
  • the amount of movement of the bellcrank 34 determines the particular horizontal row of characters to be presented at the printing position.
  • the detent means move into appropriate engagement after the selected character is at its printing position through movement of the shaft 57.
  • FIGS. 4 and 5 discloses this type of arrangement wherein a support member 70 has a disc 71 with a hollow shaft 72 extending downwardly therefrom.
  • the hollow shaft 72 corresponds to the hollow shaft 5 of FIGS. l-3.
  • Each of a plurality of shafts 73 has its upper end rotatably mounted in the disc 71 while its lower end carries one of the planetary gears 10, which mesh with the sun gear 11.
  • Each of the shafts 73 has one of the type heads 6 mounted thereon for rotation therewith.
  • the shaft 73 and the type head 6 thereon have cooperating means (not shown) to allow the type head 6 to slide thereon but not rotate with respect thereto.
  • a stop 74 is secured to the lower end of each of the shafts 73 above the planetary gear 10 to limit downward movement of an annular plate 75.
  • the annular plate 75 has a central opening 76 (see FIG. 5) for receiving the hollow shaft 72.
  • the plate 75 has a plurality of slots 77 in its periphery for fitting about the shafts 73.
  • the plate 75 is attached to a shaft 78, which is disposed Within the hollow shaft 72, by a plurality (one shown) of members 79, which extend through axial slots (one shown) in the hollow shaft 72 and are secured to the shaft 78.
  • a shaft 78 which is moved, it raises or lowers the plate 75 to move the type heads 6 along the shafts 73.
  • the shaft 72 is only rotated and not moved axially.
  • the shaft 12 is moved about its axis of rotation to position one of the vertical columns on the type heads 6 at the printing position in the same manner as described with respect to FIGS. 13. For clarity purposes, the remainder of the structure for rotating the shaft 12 has not been shown. However, the shaft 12 must rotate whenever the hollow shaft 72 rotates in the same manner as it is necessary for the shaft 12 to rotate when the hollow shaft 5 is rotated.
  • the shaft 78 is moved axially by the bellcrank 34 in the same manner that the hollow shaft 5 is moved axially by the bellcrank 34 in the modification of FIGS. 1-3.
  • the shaft 78 rotates whenever the hollow shaft 72 rotates because of its connection through the anular plate 75 to the support member 70.
  • An advantage of this invention is that a small size printing head may have a large number of characters available for printing. Another advantage of this invention is that the printing head may be quickly moved to position a selected character for printing. Still another advantage of this invention is that very short amounts of movement are required for selection of the character to be printed.
  • a rotary printing device comprising:
  • each of said type heads having its axis of rotation disposed substantially the same radial distance from the axis of rotation of said support means;
  • each of said type heads having a plurality of characters arranged on its periphery in parallel rows and parallel colunms;
  • said positioning means including means to prevent rotation of each of said type heads about its axis of rotation due to rotation of said support means.
  • a rotary printing device comprising:
  • each of said type heads having its axis of rotation disposed substantially the'same radial distance from the axis of rotation of said support means;
  • each of said type heads having a plurality of characters arranged on its periphery in parallel rows and parallel columns;
  • said simultaneous moving means including means to prevent rotation of each of said type heads about its axis of rotation due to rotation of said support means.
  • a rotary printing device comprising:
  • each of said type heads having its axis of rotation disposed substantially the same radial distance from the axis of rotation of said support means;
  • each of said type heads having a plurality of characters arranged on its periphery in parallel rows and parallel columns;
  • a printing hammer having a face movable into engagement with one of said characters on one of said type heads
  • said positioning means including:
  • a rotary printing device comprising:
  • each of said type heads having its axis of rotation disposed substantially the same radial distance from the axis of rotation of said support means;
  • each of said type heads having a plurality of characters arranged on its periphery in parallel rows and parallel columns; and means to position one of said characters on one of said type heads at a printing position, said positioning means including:
  • a rotary printing device comprising: a rotatably mounted support member; a plurality of type heads rotatably mounted on said support member; each of said type heads having its axis of rotation disposed substantially the same radial distance from the axis of rotation of said support member; each of said type heads having a plurality of characters arranged on its periphery in parallel rows and parallel columns; said support member having a centrally disposed hollow shaft extending from at least one side thereof; and means to position one of said characters on one of said type heads at a printing position, said positioning means including:
  • a rotary printing device comprising: a rotatably mounted support member; a plurality of type heads rotatably mounted on said support member; each of said type heads having its axis of rotation disposed substantially the same radial distance from the axis of rotation of said support member; each of said type heads having a plurality of characters arranged on its periphery in parallel rows and parallel columns; said support member having a centrally disposed hollow shaft extending from at least one side thereof; and means to position one of said characters on one of said type heads at a printing position, said positioning means including:
  • a rotary printing device comprising:
  • each of said type heads having its axis of rotation disposed substantially the same radial distance from the axis of rotation of said support member;
  • each of said type heads having a plurality of characters arranged on its pheriphery in parallel rows and parallel columns;
  • said support member having a first hollow shaft extending from at least one side thereof and centrally disposed with respect thereto;
  • a second shaft disposed within said first hollow shaft and having its axis aligned with the axis of said first hollow shaft;
  • a third hollow shaft disposed within said first hollow shaft and surrounding said second shaft, said third hollow shaft having its axis aligned with the axes of said first hollow shaft and said second shaft;
  • said positioning means including:
  • a rotary printing device comprising:
  • each of said type heads having its axis of rotation disposed substantially the same radial distance from the axis of rotation of said support member;
  • each of said type heads having a plurality of characters arranged on its periphery in parallel rows and parallel columns;
  • said support member having a first hollow shaft extending from at least one side thereof and centrally disposed with respect thereto;
  • a second shaft disposed within said first hollow shaft and having its axis aligned with the axis of said first hollow shaft;
  • a third hollow shaft disposed within said first hollow shaft and surrounding said second shaft, said third hollow shaft having its axis aligned with the axes of said first hollow shaft and said second shaft;
  • said positioning means including:
  • a rotary printing device in which said means connecting said second shaft to said third hollow shaft includes:
  • a rotary printing device comprising: a rotatably mounted support member; a plurality of type heads rotatably mounted on said support member; each of said type heads having its axis of rotation disposed substantially the same radial distance from the axis of rotation of said support member; each of said type heads having a plurality of characters arranged on its periphery in parallel rows and parallel columns; said support member having a hollow shaft connected thereto and extending therefrom, said hollow shaft being centrally disposed with respect to said support member; each of said type heads having a gear connected thereto; a sun gear cooperating with each of said gears on said type heads; a shaft connected to said sun gear and having its axis aligned with the axis of said hollow shaft; and means to position one of said characters on one of said type heads at
  • a rotary printing device comprising: a rotatably mounted support member;
  • each of said type heads having its axis of rotation disposed substantially the same radial distance from the axis of rotation of said support member; each of said type heads having a plurality of characters arranged on its periphery in parallel rows and parallel columns; said support member having a hollow shaft connected thereto and extending therefrom, said hollow shaft being centrally disposed with respect to said support member; each of said type heads having a gear connected thereto; a sun gear cooperating with each of said gears on said type heads; a shaft connected to said sun gear and having its axis aligned with the axis of said hollow shaft; and means to position one of said characters on one of said type heads at a printing position, said positioning means including:
  • the rotary printing device including:
  • detent means to lock said hollow shaft against rotary and axial movement when said one character on said one type head is at the printing position.

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  • Rotary Presses (AREA)
  • Printers Characterized By Their Purpose (AREA)
  • Retarders (AREA)
  • Sheet Holders (AREA)
US468263A 1965-06-30 1965-06-30 Printing structure having plural type wheels Expired - Lifetime US3334721A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
US468263A US3334721A (en) 1965-06-30 1965-06-30 Printing structure having plural type wheels
GB19672/66A GB1122096A (en) 1965-06-30 1966-05-04 Printing device
NL6608621A NL6608621A (de) 1965-06-30 1966-06-22
CH920566A CH445526A (de) 1965-06-30 1966-06-24 Typenträgereinrichtung mit mehreren Typenstäben
DE19661561227 DE1561227A1 (de) 1965-06-30 1966-06-25 Typentraegeranordnung mit mehreren Typenstaeben
ES0328465A ES328465A1 (es) 1965-06-30 1966-06-28 Un dispositivo de escribir rotativo.
BE683453D BE683453A (de) 1965-06-30 1966-06-30
FR7891A FR1485065A (fr) 1965-06-30 1967-05-08 Tête d'impression rotative

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US468263A US3334721A (en) 1965-06-30 1965-06-30 Printing structure having plural type wheels

Publications (1)

Publication Number Publication Date
US3334721A true US3334721A (en) 1967-08-08

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Application Number Title Priority Date Filing Date
US468263A Expired - Lifetime US3334721A (en) 1965-06-30 1965-06-30 Printing structure having plural type wheels

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US (1) US3334721A (de)
BE (1) BE683453A (de)
CH (1) CH445526A (de)
DE (1) DE1561227A1 (de)
ES (1) ES328465A1 (de)
FR (1) FR1485065A (de)
GB (1) GB1122096A (de)
NL (1) NL6608621A (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3455428A (en) * 1967-06-07 1969-07-15 Nippon Electric Co Typewriter receiver means
US3620344A (en) * 1969-12-29 1971-11-16 Ibm Selection system for a dual-element typewriter
US3645372A (en) * 1969-12-31 1972-02-29 Ibm Automatic type element changing mechanism for single element typewriter
US3730080A (en) * 1970-08-05 1973-05-01 Westvaco Corp Embosser using small diameter embossing rolls
US3731779A (en) * 1970-06-30 1973-05-08 Burroughs Corp Type drum assembly for an on-the-fly printer
US3811546A (en) * 1971-04-30 1974-05-21 Ricoh Kk Mechanical printer
US3892303A (en) * 1973-04-03 1975-07-01 Frederick P Willcox Type font changing mechanism and controls
FR2463458A1 (fr) * 1979-08-07 1981-02-20 Postalia Gmbh Dispositif pour rouleau d'impression a selection prevu dans les dispositifs d'affranchissement et servant a caracteriser la nature de l'envoi

Families Citing this family (1)

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FR2190054A5 (de) * 1972-06-20 1974-01-25 Arvai T

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US622472A (en) * 1899-04-04 hqofnagle
GB190509069A (en) * 1905-04-29 1906-04-26 Louis Besancon Improvement in Type-writers concerning the Adaptation of Several Kinds of Writing in a Single Machine.
US1127487A (en) * 1912-07-13 1915-02-09 Josef Mohr Type-writer.
DE577859C (de) * 1931-09-13 1933-06-06 Siemens & Halske Akt Ges Typentrommelanordnung
US2757775A (en) * 1953-01-19 1956-08-07 Ibm Single printing element typewriter
US2919002A (en) * 1957-04-19 1959-12-29 Ibm Selection mechanism for a single printing element typewriter
US3205305A (en) * 1961-12-06 1965-09-07 Scm Corp Planetary recording apparatus
US3272302A (en) * 1963-10-17 1966-09-13 Nippon Electric Co Printing mechanism for typewriters having plural typewheels

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US548726A (en) * 1895-10-29 seif eied
US622472A (en) * 1899-04-04 hqofnagle
GB190509069A (en) * 1905-04-29 1906-04-26 Louis Besancon Improvement in Type-writers concerning the Adaptation of Several Kinds of Writing in a Single Machine.
US1127487A (en) * 1912-07-13 1915-02-09 Josef Mohr Type-writer.
DE577859C (de) * 1931-09-13 1933-06-06 Siemens & Halske Akt Ges Typentrommelanordnung
US2757775A (en) * 1953-01-19 1956-08-07 Ibm Single printing element typewriter
US2919002A (en) * 1957-04-19 1959-12-29 Ibm Selection mechanism for a single printing element typewriter
US3205305A (en) * 1961-12-06 1965-09-07 Scm Corp Planetary recording apparatus
US3272302A (en) * 1963-10-17 1966-09-13 Nippon Electric Co Printing mechanism for typewriters having plural typewheels

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US3455428A (en) * 1967-06-07 1969-07-15 Nippon Electric Co Typewriter receiver means
US3620344A (en) * 1969-12-29 1971-11-16 Ibm Selection system for a dual-element typewriter
US3645372A (en) * 1969-12-31 1972-02-29 Ibm Automatic type element changing mechanism for single element typewriter
US3731779A (en) * 1970-06-30 1973-05-08 Burroughs Corp Type drum assembly for an on-the-fly printer
US3730080A (en) * 1970-08-05 1973-05-01 Westvaco Corp Embosser using small diameter embossing rolls
US3811546A (en) * 1971-04-30 1974-05-21 Ricoh Kk Mechanical printer
US3892303A (en) * 1973-04-03 1975-07-01 Frederick P Willcox Type font changing mechanism and controls
FR2463458A1 (fr) * 1979-08-07 1981-02-20 Postalia Gmbh Dispositif pour rouleau d'impression a selection prevu dans les dispositifs d'affranchissement et servant a caracteriser la nature de l'envoi
US4326460A (en) * 1979-08-07 1982-04-27 Postalia Gmbh Indicating device for an option printing cylinder

Also Published As

Publication number Publication date
NL6608621A (de) 1967-01-02
DE1561227A1 (de) 1970-09-24
CH445526A (de) 1967-10-31
ES328465A1 (es) 1967-04-01
FR1485065A (fr) 1967-06-16
BE683453A (de) 1966-12-01
GB1122096A (en) 1968-07-31

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