US3814010A - Mechanism for double printing with a possibility for barring second printing - Google Patents

Mechanism for double printing with a possibility for barring second printing Download PDF

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Publication number
US3814010A
US3814010A US00249104A US24910472A US3814010A US 3814010 A US3814010 A US 3814010A US 00249104 A US00249104 A US 00249104A US 24910472 A US24910472 A US 24910472A US 3814010 A US3814010 A US 3814010A
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US
United States
Prior art keywords
wheel
hammer
periphery
hub
flange
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Expired - Lifetime
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US00249104A
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English (en)
Inventor
I Stanchev
A Popov
I Varbanov
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DSO IZOT
Isot DSO
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Isot DSO
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Publication date
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Classifications

    • 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
    • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/62—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for printing on two or more separate sheets or strips of printing material being conveyed simultaneously to or through the printing zone

Definitions

  • the print wheel has a resiliently deflectable rim and means for shifting an 1 References Clted 1 anvil out of the way to exclude second printing.
  • UNlTED STATES PATENTS 1,547.150 7/1923 Von Pein 101/90 x 6 Clam, 3 D'awmg F'gures PATENTEDJUH 41974 333141010 swam 2 0f 3 lla/ll,
  • a printer having a print wheel with a resiliently shiftable periphery provided with two fonts of characters to be printed and having corresponding characters of these fonts located at diametrically opposite positions.
  • a radially displaceable hammer may then drive one band of print-out material (paper strip) against the print wheel, displace the periphery thereof radially along the diameter on which the hammer is displaced, and press the print wheel against a second paper band on the opposite side of the print wheel while the paper band is supported by an anvil. In this manner the diametrically opposite characters are impressed upon the respective bands.
  • a print wheel or block of print wheels which may be surrounded by a typewriter ribbon and is flanked by two paper bands at least at diametrically opposite locations between a support or anvil and a hammer or striking mechanism at diametrically opposite locations.
  • the anvil is shiftable into and out of alignment with the hammer along a diameter of the wheel for selectively permitting and excluding the second printing.
  • the first and second feed means for advancing the first and second print-out bands between the hammer and the print wheel and between the print and the anvil, respectively are so constructed and arranged as to orient these bands in mutually parallel stretches in planes perpendicular to the direction of the displacement of the striker or hammer.
  • the means for guiding the pigment-carrying ribbon can include roller means defining at least two mutually parallel stretches of this ribbon, parallel to the planes of the paper bands and likewise perpendicularto the direction of displacement of the hammer.
  • a number of such printing wheels are provided on a common wheel shaft in axially adjacent relationship, each of the wheels comprising a hub mounted on the wheel shaft, a ring carried by the hub with radial play and having a flange projecting axially inwardly into an axially outwardly open groove of the h'ub,'and a rubber or other elastic annular body interposed between the ring and the hub and elastically accommodating the aforementioned radial play of the ring.
  • the ring is formed with the aforementioned periphery provided with two fonts of characters which may be alphabetical, numerical or symbolical as desired.
  • the second-printing exclusion may be provided by mounting the anvil as a resilient head on a cylindrical bushing rotatable on a shaft parallel to the wheel shaft.
  • the bushing may then have a flange at one end thereof provided with a recess engaging a banking pin for limiting angular displacement of the bushing and the pad carried thereby.
  • a spring engaging the flange urges the pad out of alignment with the hammer across a diameter of the wheel while a pair of teeth on the flange may be respectively engaged by an electromagnetically displaceable arm or pawl to release the bushing for displacement by the spring and bya lever operated by an eccentric cam for resetting the bushing.
  • the printer according to the present invention comprises one or more resilient printing wheels 1 disposed close to one another on a common drive or wheel shaft 21 (FIG. 2), the wheel being driven by a motor or the like as represented at M.
  • Each resilient printing wheel includes a cylindrical type-earrying ring whose rim 18 is provided with the type faces F along its periphery. The rim 18 is shiftable through a distance K in the radial direction, this distance representing the radial or diametral plane.
  • a hub 20 carries each rim l8 and is provided with an axially open recess or groove 23 into which an inwardly extending flange or boss 22 projects to define the plane K mentioned above.
  • a flexible resilient element 19 in the form of a rubber body or membrane of M cross section. This body has shanks 19a and 1% respectively bonded to the hub and to the rim 18 and interconnected by a V-section web 190.
  • the type characters F are arranged in two rows or fonts such that identical letters or characters are located opposite to one another and in a common center plane.
  • the type carrying wheels 1 are surrounded in part by a typewriter ribbon (Pitman carrying ribbon) 12 which is guided along two parallel stretches 12a and 12b by the roller means 120 and 12d.
  • the stretches 12a and 12b are generally tangent to the wheel 1 at the plane P of a striker which will be described in greater detail hereinafter.
  • Guide means, such as a roller 10a is also provided for each of two paper bands 10 and 11 which are displaced parallel to one another and tangential to the wheel so that they too are parallel to the typewriter ribbon 12 and are perpendicular to the plane P.
  • the printing hammers 2 associated with each wheel I are displaceable individually by respective electromagnetic means along the plane P, i.e., along a diame ter of each wheel when the selected character is to be printed.
  • the shaft 21 can thus be rotated continuously until the selected characters are aligned along the plane P whereupon the hammer 2 strikes in the plane P.
  • the band 11 and the ribbon 12 passes between the hammers 2 and the type wheel 1.
  • An anvil arrangement is provided opposite the hammers along the array of type wheels.
  • This arrangement comprises a shaft 4 parallel to the wheel shaft 21 and carrying a cylindrical bushing 3 along the periphery of which is provided a rubber pad 13 extending along a generatrix of the array of wheels.
  • the paper band 10 and the ribbon 12 pass between the type wheel 1 and the pad 13. It will be apparent that, whenone of the hammers 2 strikes. the paper band 11 and the ribbon stretch 12b are driven against the type wheel 1 whose character D" may be juxtaposed with the hammer, thereby printing this character on the paper and likewise printing the characters of the remaining wheels having actuated hammers in a line of print.
  • the impact of the hammers causes the type wheel to shift radially along the plane P (see the right hand wheel in FIG. 2) to drive the upper character D against the ribber stretch 12a and the paper band 10 which is supported by the pad 13.
  • a second line of printing is provided on the second band 10.
  • the ribbon may be displaced in the cadence of operation of the hammers by conventional means known per se.
  • the mechanism for excluding the second printing selectively, comprises a flange 16 connected to the right hand and of the bushing 3 (FIG. 2) and provided along its periphery with a recess of slot 24 in which a banking pin 8 is located, the latter limiting the angular displacement of the bushing and the pad 13.
  • the flange is provided with a tooth 25 ahead of which is located an end of a bell crank lever 14 for restoring the bushing so that pad I3 is effective.
  • the lever 14 is engaged by an eccentric cam and can assume the extreme positions illustrated in broken lines and in solid lines in FIG. 1.
  • a further tooth 26 is provided on the flange l6 and is engageable by a pawl or arm 5 of an armature of the electromagnet 6.
  • a spring 7 normally draws this pawl into engagement with the tooth 26 to retain the flange against clockwise movement (FIG. 1) by a spring 17 biasing the flange and the bushing in a clockwise sense.
  • the resilient wheels 1 rotate continuously at a given instant when the characters to be printed on each wheel are aligned at P.
  • the hammers 2 are electromechanically actuated to print the character representation on the paper as already described.
  • an electrical pulse energizes the electromagnet 6 to draw the armature 5 in the counterclockwise 6 (compare FIGS. 1 and 3) to releasethe bushing 3 which is rotated by the spring 17 in the clockwise sense.
  • the rubber pad 13 is thus shifted out of line with the plane P and does not support the paper 10 for second printing.
  • the cam 15 swings the lever 14 in the clockwise sense to restore the bushing 3 to its operative position, whereupon the released armature 5 reaches the bushing in position shown in FIG. 1.
  • a printer comprising:
  • a print wheel having-a resiliently shiftable periphery provided with two fonts of characters to be printed and having corresponding characters of said fonts located at diametrically opposite positions of the periphery;
  • first and second feed means for guiding first and second print-out bands respectively between said hammer and said periphery of said wheel and between said periphery of said wheel and said anvil for simultaneous printing of corresponding characters on both said bands upon actuation ofsaid hammer;
  • said anvil comprising a shaft having an axis parallel to the axis of said wheel, a cylindrical bushing mounted on said shaft and rotatable about the axis thereof, a resilient pad carried by said bushing and angularly displaceable thereon into and out of alignment with said wheel along a diameter thereof through said hammer, an outwardly extending control flange formed on one end of said cylindrical bushing, a spring engaging said flange and angularly biasing said bushing to urge said pad out of diametrical alignment with said hammer across said wheel, a recess formed in said flange, a banking pin received in said recess for limiting the extent of angular displacement of said bushing, a tooth projecting from said flange, an actuating lever engageable with said tooth for angularly displacing
  • said first and second guide means include means for passing said bands along mutually parallel stretches past said wheel, said means for guiding said pigment-carrying ribbon around said periphery of said wheel including rollers forming a transport path having mutually parallel stretches running along said stretches of said bands, said hammer being displaceable perpendicularly to said stretches.
  • a wheel shaft carrying said wheel said wheel comprising a hub mounted on said wheel shaft and angularly displaceable therewith, a ring surrounding said hub and radially shiftable relative thereto, said hub being formed with an axially open annular recess turned in one direction, said ring forming said periphery and being provided along its rim with said characters, a flange formed on said ring and lying along a flank of said hub while having an axially inwardly turned portion received in said groove, and an elastic annulus interposed between said ring and said hub for limiting the radial displacement of said ring.

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  • Handling Of Sheets (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)
  • Impression-Transfer Materials And Handling Thereof (AREA)
US00249104A 1971-04-29 1972-05-01 Mechanism for double printing with a possibility for barring second printing Expired - Lifetime US3814010A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BG1644671 1971-04-29

Publications (1)

Publication Number Publication Date
US3814010A true US3814010A (en) 1974-06-04

Family

ID=3897583

Family Applications (1)

Application Number Title Priority Date Filing Date
US00249104A Expired - Lifetime US3814010A (en) 1971-04-29 1972-05-01 Mechanism for double printing with a possibility for barring second printing

Country Status (8)

Country Link
US (1) US3814010A (de)
AT (1) AT309858B (de)
DD (1) DD100095A5 (de)
DE (1) DE2220501A1 (de)
FR (1) FR2136350A5 (de)
GB (1) GB1335013A (de)
IT (1) IT952701B (de)
SU (1) SU575231A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2279553A1 (fr) * 1974-07-25 1976-02-20 Addmaster Corp Imprimante a compression pour papiers d'epaisseur variable
US4262593A (en) * 1977-07-29 1981-04-21 Henry Gross Printing apparatus
US6811336B2 (en) * 2001-11-28 2004-11-02 Jostens, Inc. Registration cam for a printing press

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2398354A1 (fr) * 1977-07-20 1979-02-16 Shinko Electric Co Ltd Installation pour imprimer des cartes d'embarquement et/ou des tickets de bagages
FR2605268B1 (fr) * 1986-10-17 1989-12-08 Vantalon Jean Paul Installation d'impression recto-verso notamment pour un systeme informatise

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1547150A (en) * 1923-07-05 1925-07-21 Ncr Co Cash register
US2085323A (en) * 1936-02-25 1937-06-29 Homer E Leash Marking device
US2818801A (en) * 1956-02-13 1958-01-07 Toledo Scale Co Type positioning mechanism
US3169474A (en) * 1963-06-04 1965-02-16 Mite Corp Type cylinder
US3415184A (en) * 1966-04-12 1968-12-10 Olivetti & Co Spa High speed serial printing device for teleprinters, accounting machines and data processing equipments

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1547150A (en) * 1923-07-05 1925-07-21 Ncr Co Cash register
US2085323A (en) * 1936-02-25 1937-06-29 Homer E Leash Marking device
US2818801A (en) * 1956-02-13 1958-01-07 Toledo Scale Co Type positioning mechanism
US3169474A (en) * 1963-06-04 1965-02-16 Mite Corp Type cylinder
US3415184A (en) * 1966-04-12 1968-12-10 Olivetti & Co Spa High speed serial printing device for teleprinters, accounting machines and data processing equipments

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
IBM Technical Disclosure Bulletin, N. Rogers, Flexible Print Stick, Vol. 3, No. 6, Nov. 1960, pg. 1. *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2279553A1 (fr) * 1974-07-25 1976-02-20 Addmaster Corp Imprimante a compression pour papiers d'epaisseur variable
US4262593A (en) * 1977-07-29 1981-04-21 Henry Gross Printing apparatus
US6811336B2 (en) * 2001-11-28 2004-11-02 Jostens, Inc. Registration cam for a printing press

Also Published As

Publication number Publication date
DD100095A5 (de) 1973-09-05
SU575231A1 (ru) 1977-10-05
AT309858B (de) 1973-09-10
GB1335013A (en) 1973-10-24
FR2136350A5 (de) 1972-12-22
DE2220501A1 (de) 1972-11-30
IT952701B (it) 1973-07-30

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