US2199561A - Printing mechanism - Google Patents

Printing mechanism Download PDF

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Publication number
US2199561A
US2199561A US194028A US19402838A US2199561A US 2199561 A US2199561 A US 2199561A US 194028 A US194028 A US 194028A US 19402838 A US19402838 A US 19402838A US 2199561 A US2199561 A US 2199561A
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United States
Prior art keywords
type
printing
impression
wheel
clutch
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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
US194028A
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English (en)
Inventor
Frederick L Fuller
Horace S Beattie
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
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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 US194028A priority Critical patent/US2199561A/en
Priority to DEI63953D priority patent/DE744946C/de
Priority to FR863745D priority patent/FR863745A/fr
Priority to GB7176/39A priority patent/GB525985A/en
Application granted granted Critical
Publication of US2199561A publication Critical patent/US2199561A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J1/00Typewriters or selective printing mechanisms characterised by the mounting, arrangement or disposition of the types or dies
    • B41J1/22Typewriters 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
    • B41J1/32Typewriters 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
    • B41J1/40Carriers swinging for impression
    • B41J1/42Carriers swinging for impression about an axis parallel to the axis of rotation of the carrier
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00Machine element or mechanism
    • Y10T74/19Gearing
    • Y10T74/19555Varying speed ratio

Definitions

  • This invention relates to printing mechanisms adapted to print characters such as numerals, alphabetical characters, etc., upon a record sheet.
  • the main object of the present invention is to devise a printing mechanism which is especially adapted for performing printing operations at high speeds.
  • printing type are carried by a wheel which is rotatable and is in continuous rotation.
  • anA impression is taken from the type Without interrupting the rotation of the wheel or the driver that elects its rotation.
  • Anoher object of the present invention is to devise a printing mechanism for printing alphabetical characters and numerals utilizing a conventional platen and avoiding the use of type hammers.
  • the use of a conventional platen is of great importance and advantage since it permits a more satisfactory means for carrying a sheet to be printed and for feeding the sheet in line space or variable spacing operations.
  • Another object of the present invention is to provide an improved arrangement for taking an impression from a selected type onto the platen without stopping the rotation of the wheel carrying the type but, nevertheless, ytaking the impression when the type is stationary.
  • This apparent inconsistency is effected by causing the printing Wheel to be rotated in one direction and then causing the printing wheel to roll over its operating gear in the opposite direction as the printing wheel is rocked toward the platen so that the selected type is stationary when it strikes the platen.
  • the printing wheels operate as type hammers and impressions are eiected while type are stationary lwithout interrupting the rotation of the printing wheel or its driver, and the use of. a conventional platen is permitted.
  • Another object of the present invention is to arrange the type elements in the printing wheel in groups, therein being one group of numeral type and three'groups of alphabetical characters, and to provide means under control of a selecting means to select the desired group of type and select the desired type of the selected group.
  • Another object of the present invention is to cause group and type selection to be effected in the 'same analyzing cycle of the same card.
  • the numeral type 1-9 are selected by perforations 1-9 and at a desired point in the operating cycle an impression is effected from the selected type.
  • Alphabetical characters are selected by (Cl. lol- 93) effecting an impression at points in the cycle earlier than the printing impression is effected from the numeral type, and the points in the cycle are selected under control of the special holes.
  • This arrangement is also a broad object of the present invention as it provides a numeral and alphabetical type printing mechanism operating for printing impressions in different points in the cycle.
  • This division results in a smoother operating cycle since hammer blows are eiected at four different points in the cycle instead of a single point.
  • the shocks to the machine eected by the hammer blows are thereby distributed and are less in intensity so that the parts to which shocks and strains are distributed can be less rugged in size thus cheapem'ng the cost of manufacture and diminishing the service requirements.
  • Fig. 1 is a view in side elevation of one order of the improved numeral and alphabet printing mechanism.
  • Fig. 1a is a diagram illustrating the code for the selection of numeral and alphabet printing characters.
  • Fig. 2 is a view in side-elevation showing in a diagrammatic manner the essential elements of a well known form of tabulating machine to understand more clearly the operation of the improved printing mechanism.
  • Fig. 3 is a view in front elevation and is taken on the irregular section line 3--3 of Fig. 1.
  • Fig. 4 is a sectionalview taken -on the line 4-4 of Fig. 3 and shows particularly the speed varying mechanism.
  • Fig. 5 is a timing diagram of the machine.
  • tabulating cards I0 (Fig. 2) are adapted to be fed singly or by a picker Il from a supply stack to a pair of upper feeding rollers I2 which convey the card so as to have the perforations of the card analyzed by the usual perforation analyzing brushes I3, while the card is in motion.
  • the card analyzed then passes to a lower set of feedin the accompanying drawings ing rollers I4 which'then convey the card to a ⁇ stonage hopper, usual in the type of machine referred to.
  • Card feeding operations are instituted by the usual manual start key designated asv ST in the last mentioned patent so as to cause by an electrical circuit the energization of a card feed clutch magnet I5.
  • the power for driving the card feeding rollers and other parts of the machine is derived from a motor (not shown) which by a belt I6 and pulley I1 constantly rotates a ratchet wheel I9 secured thereto.
  • the pulley I1 and ratchet wheel I9 are loosely mounted upon a shaft I8.
  • Fig. 2 there is shown the card feed clutch for causing card feed and is similar to the card feed clutch disclosed in Fig. 1d. of the Lake Patent No. 1,822,594, dated September 8, 1931, to which reference should be had for details of construction and operation.
  • clutch magnet I5 Upon completion of the electrical circuit to clutch magnet I5, the latter attracts its armature to raise a clutch lever 2l to thereby unlatch the latter from a clutch pawl 22. The latteris then drawn by a related spring 23' to engage the constantly rotating ratchet wheel I9.
  • the clutch pawl 22 is carried by a bar 25, which is secured to a disk 26 secured 'to shaft I8 and to the latter there is secured a pinion 21.
  • the pinion 21 is in mesh with a gear 28 and the latter drives the upper set of feeding rollers I2 and the lower set of feeding rollers I 4.
  • the upper set of feeding rollers is intergeared by pinions 29,
  • the driving gear 28 is of suicient width to drive a gear 34 so that by a train of gears 35, 38 a shaft 31 is driven. It is understood that as is usual in tabulating machines the card feed clutch is so designed and thegears are so proportioned that shaft 31 will be given a complete revolution in the arrow direction shown in Fig. 2.
  • Numeral printing mechanism As best shown in Fig. 4, to the shaft 31 which rotates one revolution for each card cycle there is secured a gear 38 which through a speed reduction mechanism, to be hereinafter described, drives a pinion 39 attached to a clutch-shaft 40, the driving connection being such that shaft 40 will be driven two revolutions for each revolution of shaft 31.
  • Shaft 40 xedly carries a notched clutch disk 4I (Fig. 1) and adjacent the clutch disk M there y is loosely mounted gear 42 to which is pivotally mounted a spring urged clutch pawl 33, the latter being normally engaged by a clutch release arm 44 so as to hold the clutch tooth 45 out of engagement with a clutch notch of the clutch disk 4I.
  • the 'I'he above described clutch is the printing type selecting clutch and causes the differential rotation of a printing wheel 48.
  • the gear 42 meshes with an idler gear 48 loosely mounted on a shaft 41 and the gear '48 meshes with the type carrying wheel or gear 48- carrying the digit printing type 0-9 inclusive and comprising the numeral type group, the numeral type being spaced four teeth apart.
  • Fig. 1 shows the arrangement fof the printing devices for a single order and the machine is pre1'- erably provided with duplicate devices for printing the digits of different denominational orders.
  • the card is perforated with holes to represent the digits 0-9 and is passed by the analyzing brushes I3 to analyze the index points in the order When the analyzing brush I3 senses a hole, a
  • a printing control magnet 49 (Fig. 2) and for each card column analyzed, there is a printing control magnet 49.
  • a printing control magnet 49 When a printing control magnet 49 is energized, its armature 50 (Fig. 1) is attracted so as to pull a' call'wire 5I l to the right.
  • 'I'he latter has a head portion comprising extensions 52 and 53, the extension 52 normally engaging a lug of an arm 54 -which is the integral depending part of the clutch release arm 44.
  • the normal engagement of extension 52 and lug 53 is retained during the time the holes 9, 8, 7, 6, 5, 4, 3, 2, and 1 are analyzed to thereby cause the clutch release arm 44 to be rocked.
  • the clutch pawl-43 is now rocked by its spring to cause its tooth to engage a particular notch of the clutch disk 4I to thereby cause the gear 42 to be rotated land through the idler gear 48 rotate the printing gear wheel 48.
  • the clutch disk 4I would rotate the extent of one notch before the clutch engagement is effected by the energization of the magnet 49. 'I'he printing wheel 48 will thereafter rotate so as to bring the "9 numeral type to the printing line.
  • the printing type wheels are picked up at differential times so that at a predetermined point in the cycle of machine operation the printing wheels will represent at the printing line the selected digits, it being noted that the 0 type is normally at the printing line so that no movement of a printing wheel is necessary to select "0 for printing.
  • Each printing wheel is carried by an arm 6
  • a gear 66 driving a pinion 66 attached to a shaft 8 61.
  • a printing clutch for each printing wheel for causing the impression to be effected and is similar to the previously described printing type selecting clutch and comprises the clutch disk 64, a clutch pawl 68 carried by one of the complementary cams 63 and a clutch release arm 69 having an integral depending arm 18.
  • attached to a related gear 46 will rock a double arm 12.
  • One end of each arm 12 carries a pin 14 engaging a slot 15 of a link 16, the latter being pivoted at 11 to anl lnterposer 18, a series of the interposers 18 being pivoted on a rod 19.
  • the link 16 is depressed to rock the related interposer 18 to bring its free or right end in front of a lug 88 o the arm 18.
  • the interposers 18 are carried, as stated, by the rod 19 and the latter is carried by a pair of dea projection 82 coacting with a profile cam 83 secured to the shaft 31. y l
  • the projection 82 will drop from the high part of the cam 83 to a low part 83a permitting a spring 84 attached to an arm 8
  • has anextension 98 cooperating with a bail 8
  • is pivoted'at 92 and has a depending arm 93 .having an extension 94 cooperatingv with a cam 9,6.
  • a high portion 96a of cam 96 engages the extension 94 and thus rocks bail 9
  • the printing wheels continue to pending arms 8
  • the printing mechanism may be split at desired points, as is well known in the art.
  • Alphabet printing mechanism The machine is preferably provided with alphabet character printing type and means for selecting such type so as to print, asidefrom numerals, letters making up words or abbreviations.
  • the alphabet type are selected according to groups, the code being shown in Fig. 1a.
  • the particular group selected determines which of the several type related to an index point will be printed. For example, if the perforation should be the 2 hole, and no pilot hole is utilized in either the O, X or R positions 2 ⁇ will be printed. If ahole is also at O, the Of hole will select the type S. If at the X index point position type K will be selected, and if at the R index point position type B will be selected.
  • the alphabet type selection is provided for by taking the printing impression before the time a numeral type would have been printed and this is effected under controlI of the ingimpression clutch 64-68 was engaged, the
  • printing wheel 48 will be rocked earlier than for printing a numeral 9 to take an imprint from the "I type.
  • the perforation at the X position will take an imprint still earlier to print R and the perforation at the O position still earlier than to print "R to print Z.
  • positively retracts the attracted armatures 68 and thereafter members 66 and 66 are depressed so as to cause the call wires 6
  • impressions are vmade at three different points in the operation cycle or after the O, X and R perforations are analyzed, whereas for numeral printing the impressions are made only after all the perforations are analyzed and .at a single point in the operating cycle.
  • Fig. 4 discloses a speed reduction mechanism for shaft 40
  • This speed reduction mechanism comprises an arm 96 pivoted by a stud 91 on the gear 65 and thereby said arm 96 is givenv a clockwise rotation of one revolution for each card cycle.
  • the arm 96 carries a roller 98 engaging the cam race of a box cam 99 (Fig. 3) fixed to a side frame by screws
  • the gear 88 is loosely mounted on the shaft 31 and carries a stud
  • the arm 96 is varied in its angular position with respectto the gear '65 by the configuration of the cam race of the box cam 99 so that in the clockwise rotation of the gear 65 the arm 96 is rocked so that its free end is moved towards the shaft 31, thus causing the gear 38 to back up with relation to thegear 65 thus causing the gear 38 to fall behind the gear 65 and reducing its speed.
  • 04 of the box cam has a configuration which effects'a driving of the gear 38 at the same speed as the gear 65 so that during the analyzing of the index points 9-2, the gears 65 and 38 rotate at the same speed, each gear rotating 18 per ⁇ index point, or a distance l equivalent to four teeth of the type wheel. Thereafter at labout the cam portion E05 the arm 96 is rocked towards the shaft 31 rocking the 'gear 88 backwardly with respect to the gear 65, thus reducing the speed of the gear y36.
  • 86 rocks the arm 96 still furthertowards shaft 31 but in such a manner as to render the speed of gear 38 constant 'and equal to one quarter of the speed of gear 55, during which time the selected numeral or ⁇ alphabet type are printed from.
  • 01 increases the speed of gear 38 so that during the final part of the cycle, the gear 38 is finally restored to the normal relation witherespect to gear 65.
  • 03 the gear 38 to rotate one quarter the speed of gear 65 is to select for printing a particular type within the group of type related to the same index point.
  • the printing operation for alphabet type is effected by the engagement of clutch 64;-68 when the index points O, X and R are analyzed, these index points having the same spacing. as the index points 9-1.
  • the alphabet type are arranged closely so that to select these type -the printing wheel must rotate at a reduced speed as the index points "0, X and R are analyzed.
  • a rotatable numeral Wheel carrying interspersed alphabet and numeral type divided into a group of numeral type and several groups of alphabet type, means iofi ⁇ rotating said Wheel, means for effecting an impression from the type on said wheel, means for effecting a predetermined extent of rotation of said wheel from its rest position in each machine operation by said rotating means for selecting a group of type and means for selecting a type in the selected group comprising means controlled by said type selecting means for causing the operation of said impression effecting means at predetermined points in the cycle of machine operation and commensurate in number with. the number of type ina group.
  • a rotatable wheel carrying several groups of type, comprising groups of valphabet type and a group of numeral type, each type of which is presented to a printing line by a single rotation of said wheel, means for selecting one of the groups of alphabet type or said numeral type, means for selecting the alphabet type within the selected group, means for taking an impression from the selected type,
  • a member carrying a plurality of groups of type comprising for each group a plurality of alphabet type, an electro-magnet, means for analyzing the holes 1-9 and then O, X and R of the same card to cause a double energization of said electromagnet, means for moving said member for presenting the type of said groups of type to a printing line when said holes 1-9 are being analyzed, impression eifecting means, a call wire operated by the energization of said electromagnet and normally controlling the operation of said moving means to select a group of type in accordance with the holes 1 9 being analyzed, means for disabling the control of said call wire of the operation of said moving means and effecting an operative connection of said call Wire and said impression eecting means, and means to cause the operation of the impression effecting means when the O, X and R holes are being analyzedy and under control of said analyzing means to effect an impression from any type of ⁇ the selected group.
  • a wheel carrying type comprising numeral and alphabet type and rotatable to present said type to a printing line, of means for rotating said wheel, means for eiecting an impression from: a selected type, type selecting means cooperating with the digit representing holes' of the card 1-9 for controlling said means for rotating said wheel forV selecting a numeral vtype and a plurality of alphabet type, means for causing the operation of said impression effecting means at a predetermined'point in the cycle'of machine operation to effect a printing impression from any one of the selected numeral type, and a supplemental selecting means operative in response tothe holes O, X and R of said card for causing in the absence of the operation ofthe preceding means the operation .of the impression eiecting means at other points in the cycle of machine operation to cause a printing impression ofla selected alphabet type of theselected plurality of type.
  • a card controlled printing machine comprising, means for analyzing the holes in a card in the sequence 19, O, X and R, a printing wheel carrying numeral type and alphabet type, means for rotating said Wheel, means for effecting an impression from the typeon saidwheel Without stopping the rotation of said wheel, selecting means controlled by said analyzing means and operative when said holes 1-9 are analyzed to eilect the rotation of said Wheel a predetermined amount to select type comprising one numeral type and a plurality of alphabet type, means operative at a predetermined point in the cycle l of machine operation which is common for printing from any numeral type to cause the 'operation of said impression effecting means to take an impression from any selected numeral type,
  • a driving means operative by the engagement of one of said clutches with the driving means to cause the rotation of said wheel to select a plurality of type, -means operative by prising a numeral type and a plurality of alphabet type, alphabet type selecting means controlled by the holes 0, X and R i'or causing the selection of the type of the selected plurality of alphabet type and the engagement of said other clutch, and means separate from said a1- phabet type selecting means and operable in the absence of the alphabet type selection for causing the engagement oi said other clutch to efi'ect an impression from any of the numeral type f type.
  • a member carrying several groups of type comprising numeral type interspersed with alphabet type
  • means for eilecting an impression from said type,l type selecting means controlling said rotating means and cooperating with the holes 1-9 of said card and type group means cooperating with the holes O, X and R of lsaid card
  • means controlled by said type group selecting means for causing the operation of said impression eecting means co incident with the analyzing of the holes O, X and R to take an impression from a selected alphabet type.
  • a card controlled machine the combination with a wheel carrying several groups of type comprising certain type and alphabet type, of means for effecting impressions i'rom the type on said wheel, means for rotating said wheel to present the type to a printing line.
  • type group selecting means controlling said impression efl'ecting means
  • type selecting means controlling said rotating means
  • means cooperating with the upper holes of the card for causing coincidentally with the analyzing of the upper holes the operation o1' said type group selecting means and said impression effecting means to thereby eect an impression from a selected type of the selected group of type, and means operating separately from said last-named means for causing the operation of said impression effecting means to take an impression from any of said certain type on said wheel when said upper holes are not present in the card.
  • type group selecting means controlling saidimpression eil'ecting means, type selecting means controlling said 5 rotatingmeans, lmeans cooperating with the lower holes oi' a-card for controlling said type selecting means whereby the latter causessaid rotating means to present a selected type to the printing line, means cooperating with the upper lholes of the card for causing coincidentally with the analyzing of the upper holes the operation of said' type group selecting means and said impression eiiecting means to thereby effect an impression from a selected type of the selected group of type,
  • a rotatable member carrying a plurality of impression is effected from the sets of type, means for selecting a set of type,
  • rotating means for said member means controlled by said selecting means for causing said rotating meansto rotate said member a differential extent to lselect a set of type,type selecting means' and means for causing said rotating means to rotate said member at a reduced speed when said type are being selected.
  • means for uninterruptedly moving said member a printing control magnet, means foranalyzing card perforations to eiiect the energization of said magnet, mean's controlled by said magnet for eiecting the ⁇ movement of said member by said moving means at predetermined times in the movement of the latter to select a group of type, means rendered eiective by a'subsequent energization of said printing control magnet for effecting an impression from a selected type of the selected group during the uninterrupted movement of said member and while said type are passing through printing posi- Aeil'ecting means.

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US194028A 1938-03-05 1938-03-05 Printing mechanism Expired - Lifetime US2199561A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US194028A US2199561A (en) 1938-03-05 1938-03-05 Printing mechanism
DEI63953D DE744946C (de) 1938-03-05 1939-03-01 Durch Zaehlkarten gesteuerte druckende Geschaeftsmaschine
FR863745D FR863745A (fr) 1938-03-05 1939-03-03 Machine à statistiques ou comptable à impression rotative
GB7176/39A GB525985A (en) 1938-03-05 1939-03-04 Improvements in or relating to printing mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US194028A US2199561A (en) 1938-03-05 1938-03-05 Printing mechanism

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US2199561A true US2199561A (en) 1940-05-07

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US194028A Expired - Lifetime US2199561A (en) 1938-03-05 1938-03-05 Printing mechanism

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DE (1) DE744946C (de)
FR (1) FR863745A (de)
GB (1) GB525985A (de)

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2415279A (en) * 1943-07-16 1947-02-04 Ibm Record card feeding mechanism
US2438081A (en) * 1943-07-15 1948-03-16 Schuyler B Harrison Record controlled accounting machine
US2438071A (en) * 1944-12-23 1948-03-16 Ibm Perforated card controlled alphabet and numeral printer
US2566944A (en) * 1946-09-19 1951-09-04 Ibm Typesetting means in record controlled printing machines
US2602394A (en) * 1948-10-07 1952-07-08 Ibm Alphabet and numeral repeat printing mechanism
US2627807A (en) * 1949-12-03 1953-02-10 Ibm Rotary selective printer
US2627806A (en) * 1949-12-03 1953-02-10 Ibm Decimal point and comma printing mechanism
US2633957A (en) * 1950-01-19 1953-04-07 Ibm Clutch
US2679797A (en) * 1950-09-07 1954-06-01 British Tabulating Mach Co Ltd Record controlled selective printing machine
US2693144A (en) * 1950-12-27 1954-11-02 Ibm Code operated printer
US2694941A (en) * 1951-10-30 1954-11-23 Harris Seybold Co Adjustable gearing
US2702506A (en) * 1950-09-30 1955-02-22 Ibm Printer with 4 point zoning control
US2753792A (en) * 1942-11-28 1956-07-10 Ibm Character printing devices
US2753793A (en) * 1953-05-19 1956-07-10 Ibm Alphabetic interpreter
US2781722A (en) * 1955-05-04 1957-02-19 Ibm Type group and type selecting means for wheel printers
US2790381A (en) * 1952-06-18 1957-04-30 Bull Sa Machines Type wheel actuating means in settable printing machines
US2799221A (en) * 1955-09-02 1957-07-16 Olivetti Corp Of America Printing mechanism
US2805620A (en) * 1951-12-15 1957-09-10 Rosen Leo Control means for high speed printing apparatus
US2869457A (en) * 1954-12-21 1959-01-20 Sperry Rand Corp Rotary printing means
US2911085A (en) * 1957-07-01 1959-11-03 Burroughs Corp Wire printer with oscillatory print head
US2928339A (en) * 1955-01-12 1960-03-15 Int Computers & Tabulators Ltd Record card controlled printing mechanism
US2935016A (en) * 1952-09-05 1960-05-03 Hughes Aircraft Co High-speed printer
US3062362A (en) * 1957-04-18 1962-11-06 Philips Corp Machine comprising an intermittently rotary table
US3115828A (en) * 1959-05-21 1963-12-31 Sperry Rand Corp Zero print suppression mechanism for printing calculators
US3215070A (en) * 1963-12-17 1965-11-02 Ibm Printer system with continuously rotating print wheels
US3302472A (en) * 1965-07-29 1967-02-07 Collins Radio Co Intermittent rotary mechanism
US3351007A (en) * 1965-10-18 1967-11-07 Control Data Corp Print hammer rapid reset means in high speed printers

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1282658B (de) * 1966-02-02 1968-11-14 Alfred Wolfgang Rudolph Druckwerk mit umlaufendem Typentraeger

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE418494A (de) * 1928-12-18
FR734945A (fr) * 1933-03-20 1932-10-31 Dispositif imprimeur particulièrement applicable aux machines à statistiques, machines à calculer ou machines à tabuler pour fiches perforées

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2753792A (en) * 1942-11-28 1956-07-10 Ibm Character printing devices
US2438081A (en) * 1943-07-15 1948-03-16 Schuyler B Harrison Record controlled accounting machine
US2415279A (en) * 1943-07-16 1947-02-04 Ibm Record card feeding mechanism
US2438071A (en) * 1944-12-23 1948-03-16 Ibm Perforated card controlled alphabet and numeral printer
US2566944A (en) * 1946-09-19 1951-09-04 Ibm Typesetting means in record controlled printing machines
US2602394A (en) * 1948-10-07 1952-07-08 Ibm Alphabet and numeral repeat printing mechanism
US2627806A (en) * 1949-12-03 1953-02-10 Ibm Decimal point and comma printing mechanism
US2627807A (en) * 1949-12-03 1953-02-10 Ibm Rotary selective printer
US2633957A (en) * 1950-01-19 1953-04-07 Ibm Clutch
US2679797A (en) * 1950-09-07 1954-06-01 British Tabulating Mach Co Ltd Record controlled selective printing machine
US2702506A (en) * 1950-09-30 1955-02-22 Ibm Printer with 4 point zoning control
US2693144A (en) * 1950-12-27 1954-11-02 Ibm Code operated printer
US2694941A (en) * 1951-10-30 1954-11-23 Harris Seybold Co Adjustable gearing
US2805620A (en) * 1951-12-15 1957-09-10 Rosen Leo Control means for high speed printing apparatus
US2790381A (en) * 1952-06-18 1957-04-30 Bull Sa Machines Type wheel actuating means in settable printing machines
US2935016A (en) * 1952-09-05 1960-05-03 Hughes Aircraft Co High-speed printer
US2753793A (en) * 1953-05-19 1956-07-10 Ibm Alphabetic interpreter
US2869457A (en) * 1954-12-21 1959-01-20 Sperry Rand Corp Rotary printing means
US2928339A (en) * 1955-01-12 1960-03-15 Int Computers & Tabulators Ltd Record card controlled printing mechanism
US2781722A (en) * 1955-05-04 1957-02-19 Ibm Type group and type selecting means for wheel printers
US2799221A (en) * 1955-09-02 1957-07-16 Olivetti Corp Of America Printing mechanism
US3062362A (en) * 1957-04-18 1962-11-06 Philips Corp Machine comprising an intermittently rotary table
US2911085A (en) * 1957-07-01 1959-11-03 Burroughs Corp Wire printer with oscillatory print head
US3115828A (en) * 1959-05-21 1963-12-31 Sperry Rand Corp Zero print suppression mechanism for printing calculators
US3215070A (en) * 1963-12-17 1965-11-02 Ibm Printer system with continuously rotating print wheels
US3302472A (en) * 1965-07-29 1967-02-07 Collins Radio Co Intermittent rotary mechanism
US3351007A (en) * 1965-10-18 1967-11-07 Control Data Corp Print hammer rapid reset means in high speed printers

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Publication number Publication date
GB525985A (en) 1940-09-09
FR863745A (fr) 1941-04-08
DE744946C (de) 1944-01-31

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