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US2066784A - Printing mechanism - Google Patents

Printing mechanism Download PDF

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Publication number
US2066784A
US2066784A US758746A US75874634A US2066784A US 2066784 A US2066784 A US 2066784A US 758746 A US758746 A US 758746A US 75874634 A US75874634 A US 75874634A US 2066784 A US2066784 A US 2066784A
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US
United States
Prior art keywords
printing
hammer
type
latch
members
Prior art date
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
US758746A
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English (en)
Inventor
Clair D Lake
Pfaff Wesley
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 US758746A priority Critical patent/US2066784A/en
Priority to DEI53183D priority patent/DE650633C/de
Priority to FR808250D priority patent/FR808250A/fr
Priority to GB35432/35A priority patent/GB467604A/en
Application granted granted Critical
Publication of US2066784A publication Critical patent/US2066784A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K15/00—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers
    • G06K15/02—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers
    • G06K15/04—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by rack-type printers

Definitions

  • FIG. 6 I 6 77 59 g; in 79 5 /8 24' iii 28 A TTORNEY atentecl Jan. 5, 1937 NlTED s'rA'rEs PRINTING MECHANISM lDlair D. lLalke, Binghamton, and Wesley lPfaff, Union Center, N. Y., assignors to International Business Machines Corporation, New York, N. Y., a corporation or New York Application December 22, 1934, Serial No. 758,746
  • This invention relates to tabulating machines and more particularly to improvements in the printing mechanisms therefor.
  • Tabulating machines as presently developed are provided with printing mechanism whereby numerals represented by index point perforations may be indicated by printing upon a record strip and in addition thereto such printing mechanism is also employed to represent the result of some computation such as a total of a series of items.
  • a plurality of columns of type elements are integrally associated with a reciprocating frame which moves all the columns of type elements past printingposition concurrently.
  • a printing hammer is provided for each column of type elements and as the elements move past printing position, the tripping of a hammer will cause the latter to strike one of the elements to take an impression therefrom without interrupting the movement of the type carrier. In this manner an impression is taken in flight and printing is eifected at the moment of selection, which moment will vary in accordance with the value of the character selected for printing.
  • Fig. 1 is a central section of the improved form of printing mechanism.
  • Fig. 2 is a section taken along lines 2-2 of Fig. 1.
  • Fig. 3 is a section looking in the same direction as Fig. 2, taken on lines 3-3 of Fig. i.
  • Fig. 4 is a detail section on lines ll of Fig. 1, showing the zero printing control connections, and
  • Fig. 5 is a detail of parts shown in Fig. 1 in position.
  • Fig. 7 is a detail showing the manner of supporting the type heads.
  • a plurality of type element holders it] are separately mounted in a cross-head which includes side members it and a slotted cross member it provided with slots is within which are secured members it.
  • Member l i has its vertical edges bevelled and has also riveted thereto a cross-piece 55 (see Fig. 7) thus forming a pair of parallel vertical slots of triangular cross section into which the lower end of the type holder it is adapted to slide.
  • Extending across the tops of holders it it is a U- shaped bar it secured to the side members i I as by thumb screws l'l.
  • the member I2 is provided with a bearing I8 at each end which is secured to a vertical rod 28 whose upper extremity is guided in bearing 2
  • the type plungers I8 will successively pass printing position opposite platen 22 in the order 9, 8, 7, etc. in synchronism with the correspondingly numbered index point positions of the record cards as the latter move in transit past the analyzing brushes LB in the card feeding and analyzing section of the machine.
  • the lower end of rod 28 is guided in a fixed bearing 23 directly above which there is secured to the shaft a member 24 which supports a pair of cam follower rollers 25 and 26 which cooperate with a pair of complementary cams 21 secured upon a shaft 28.
  • Shaft 28 also carries a gear 29 which, through idlers 38 is driven from a gear 3
  • a secondary frame 33 Slidably supported on rods 28 is a secondary frame 33 which is provided with a roller 34 in cooperation with a cam 35 also carried on shaft 28.
  • a spring 36 secured at one end to the frame and at the lower end to bearing 23 tends to urge the frame downwardly and serves to hold roller 34 in engagement with a plurality of rises 31 numbered 9 to 1, which, as they successively cooperate with roller 34, cause a succession of reciprocations of the frame 33 which are timed so that each upward stroke occurs as the correspondingly numbered type element is passing through printing position.
  • the rise 31 in the zero position of the cam is higher than that in the other positions (see Fig. 6) and will cause a somewhat higher movement of the frame as the zero type element passes through printing position. This additional upward movement is utilized to control the printing of zeros to the right of significant figures in a manner to be set forth hereinafter.
  • Carried by and pivoted upon frame 33 are latches 38 whose left ends are urged by springs 39 into latching engagement with a hook 48 which forms an extension of a member 4
  • has connection with a spring 43 by means of a link and roller device 44 which cooperates with an arm 45 extending from member 4
  • a U-shaped cross member 48 straddles the lower extremities of the link and roller connections 44 and is supported through its side arms upon a cross rod 48.
  • Rod 49 has secured thereto an arm 58 (Fig. 2) provided with a handle 5
  • roller 44 may be'moved to one or another of the recesses 46.
  • the free end of arm 58 is provided with a detenting pin 52 to retain the arm 58 and consequently cross frame 48 in any selected position.
  • the purpose of shifting the point of connection is to increase or lessen the tension of springs 43 upon members 4
  • Head 56 is pivoted to the upper extremity of hammer 53 and held against a shoulder thereof by a light spring 58 to form a resilient connection between the head 56 and hammer 53.
  • the pivot rod 59 of latches 38 moves up and down with the cross member without disengaging the connection between latch 38 and hook 48 since as the pivot rod 59 moves upwardly, spring 38 will cause rocking of latch 38 in a counterclockwise direction to maintain its engagement with hook 48.
  • Lying in the plane of latch 38 is a stopping pawl 68 normally held in the position shown by a latch 6
  • One terminal of the magnet has connection with an analyzing brush LB and the other, through usual circuit breaking devices, has connection with one side of a source of current.
  • a circuit through the magnet 64 will be completed at differential times depending upon the location of the perforation in the record card analyzed and at the time of such analysis the correspondingly numbered type element will be approaching the printing position and latch 38 will be moving upwardly so that the sequence of operations will be substantially as follows:
  • a cam 65 carried by shaft 28 will engage and rock the bell crank 66 connected throughthe link 61 to an arm 68 whose free end has pin and slot connection with a bail 68, and will cause counterclockwise rocking of the latter to restore the type hammers 53 and members 5
  • a member I8 (Fig. 1) pivoted on rod II will be rocked in a counterclockwise direction by a cam I2 to rock ball 13 clockwise for the purpose of relatching stopping pawls 68 on latches I
  • zeros are perforated in fields of the record cards to fill out columnar positions to the left of the highest significant figure. However, it is not desired to print these extra zeros which are nevertheless sensed by the analyzing brushes and caused to complete circuits to printing magnets 64.
  • Each latch 38 is provided with a lateral extension I4 (see Fig. 5) which lies within the jaw of the bifurcated end of a member I5 which is pivoted at IE to a fixed cross member.
  • a lateral extension I4 see Fig. 5
  • member I5 which is pivoted at IE to a fixed cross member.
  • extension M and member I5 see Fig. 6
  • the greater rise 31a. of cam 35 will cause a greater advance of pivot rod 59 and consequently a highi er movement of the extensions I4 of latches 38 in those positions in which stop pawls 60 have previously been tripped in response to the analysis of a significant figure.
  • Each member I5 is provided with a lateral extension I8 (see Fig. 4) which extends over the upper edge of the next adjacent higher order member I5 so that rocking of any member I5 as in Fig. 5 will cause the next lower order member to be rocked likewise through the extension I8 of the latter member and it in turn will engage the lower edge of extension I4 of its latch 38 to disconnect the same from its member 4
  • the members I5 are horizontally slidable and each is provided with a pivoted finger piece I9 through which the members I5 may be separately moved toward the left as viewed in Figs. 1 and 5. This will bring the extension IB of the member I5 which has been moved toward 'the left over a lower portion of the upper edge of the next higher member I5 so that if such next higher member is rocked as explained, the motion will not be transmitted to themember which has been moved toward the left and the zero printing action will not take place. This is the socalled zero-splitting feature of tabulating printing mechanism.
  • an invariably reciprocating type carrier a printing hammer, impelling means for said hammer, an invariably reciprocating member provided with means for normally restraining said impelling means against operation, and means releasing said restraining means during the reciprocation of said carrier and said member to cause said impelling means to impel said hammer against said carrier.
  • an invariably reciprocating type carrier a printing hammer, a spring for urging said hammer against said carrier during its movement in one direction, a member and means for causing said member to reciprocate a number of times during a single reciprocation of said carrier, and means for selectively causing said member to cause said spring to actuate the hammer during one of the reciprocations of said member.
  • an invariably reciprocating type carrier a reciprocating member and means for causing said member to reciprocate more than once during a single reciprocation of said carrier, a printing hammer and means for causing said member to cause said hammer to be impelled against the carrier during any one of the reciprocations of said member.
  • an invariably reciprocating type carrier a spring-pressed printing hammer associated therewith, a reciprocat-- ing member and a latch carried thereby for holding said hammer against the action of its spring and means for causing said latch to release said hammer during the movement of said reciprocating member to cause said hammer to strike' said carrier.
  • a plurality of typ members means for continuously moving said members through a predeterminedprinting position, a spring-pressed printing hammer, a latch for said hammer, means for reciprocating said latch while in engagement with said hammer and means for causing rocking of said latch during its reciprocation to release said hammer for selectively printing from one of said type members while they are passing through printing position.
  • a printing machine adapted to be controlled by record cards, sensing elements, type members, means for causing said members to move continuously toward a fixed printing position, a printing hammer, impelling means therefor, a latch for holding said hammer, a power device including a constantly rotating cam and means controlled by said sensing elements for causing said cam to operate said latch whereby said impelling means will move said hammer against said type members for selectively printing from said members while the latter are passing through said printing position.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Common Mechanisms (AREA)
  • Handling Of Cut Paper (AREA)
US758746A 1934-12-22 1934-12-22 Printing mechanism Expired - Lifetime US2066784A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US758746A US2066784A (en) 1934-12-22 1934-12-22 Printing mechanism
DEI53183D DE650633C (de) 1934-12-22 1935-09-11 Druckvorrichtung
FR808250D FR808250A (fr) 1934-12-22 1935-12-14 Machine tabulatrice avec porte-type mû à vitesse constante
GB35432/35A GB467604A (en) 1934-12-22 1935-12-21 Improvements in or relating to printing mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US758746A US2066784A (en) 1934-12-22 1934-12-22 Printing mechanism

Publications (1)

Publication Number Publication Date
US2066784A true US2066784A (en) 1937-01-05

Family

ID=25052941

Family Applications (1)

Application Number Title Priority Date Filing Date
US758746A Expired - Lifetime US2066784A (en) 1934-12-22 1934-12-22 Printing mechanism

Country Status (4)

Country Link
US (1) US2066784A (fr)
DE (1) DE650633C (fr)
FR (1) FR808250A (fr)
GB (1) GB467604A (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2561646A (en) * 1947-07-15 1951-07-24 Precisa A G Rechenmaschinenfab Setting device for the type levers in calculating machines
US2598511A (en) * 1947-08-13 1952-05-27 Ibm Translating device for recording machines
US2624275A (en) * 1949-06-14 1953-01-06 Rainey Accounting Machine Comp Hammer operating mechanism
US2658447A (en) * 1949-03-30 1953-11-10 Remington Rand Inc Positive cam operated print mechanism
US2669178A (en) * 1947-08-13 1954-02-16 Ibm Record controlled printing means
US2687088A (en) * 1948-08-30 1954-08-24 Durant Mfg Co Printing recording counter
US2722887A (en) * 1955-11-08 Printing mechanism and record material
US2949846A (en) * 1958-03-28 1960-08-23 Burroughs Corp Printing mechanism
US2988987A (en) * 1956-03-14 1961-06-20 Elliott Brothers London Ltd High speed printing mechanism
US3143064A (en) * 1962-10-11 1964-08-04 Ncr Co Print hammer anti-rebound mechanism
US3585929A (en) * 1969-01-21 1971-06-22 Theodore B Hirschberg Jr Platen assembly for check writers
US3648602A (en) * 1970-04-27 1972-03-14 Avgerinos Inc Parallel input printing mechanism

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3511161A1 (fr) * 2013-08-26 2019-07-17 Corning Incorporated Structure stratifiée

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2722887A (en) * 1955-11-08 Printing mechanism and record material
US2561646A (en) * 1947-07-15 1951-07-24 Precisa A G Rechenmaschinenfab Setting device for the type levers in calculating machines
US2598511A (en) * 1947-08-13 1952-05-27 Ibm Translating device for recording machines
US2669178A (en) * 1947-08-13 1954-02-16 Ibm Record controlled printing means
US2687088A (en) * 1948-08-30 1954-08-24 Durant Mfg Co Printing recording counter
US2658447A (en) * 1949-03-30 1953-11-10 Remington Rand Inc Positive cam operated print mechanism
US2624275A (en) * 1949-06-14 1953-01-06 Rainey Accounting Machine Comp Hammer operating mechanism
US2988987A (en) * 1956-03-14 1961-06-20 Elliott Brothers London Ltd High speed printing mechanism
US2949846A (en) * 1958-03-28 1960-08-23 Burroughs Corp Printing mechanism
US3143064A (en) * 1962-10-11 1964-08-04 Ncr Co Print hammer anti-rebound mechanism
US3585929A (en) * 1969-01-21 1971-06-22 Theodore B Hirschberg Jr Platen assembly for check writers
US3648602A (en) * 1970-04-27 1972-03-14 Avgerinos Inc Parallel input printing mechanism

Also Published As

Publication number Publication date
DE650633C (de) 1937-09-27
FR808250A (fr) 1937-02-01
GB467604A (en) 1937-06-21

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