GB1331657A - Printing apparatus - Google Patents

Printing apparatus

Info

Publication number
GB1331657A
GB1331657A GB1485071*[A GB1485071A GB1331657A GB 1331657 A GB1331657 A GB 1331657A GB 1485071 A GB1485071 A GB 1485071A GB 1331657 A GB1331657 A GB 1331657A
Authority
GB
United Kingdom
Prior art keywords
paper
hammers
polepieces
blade
coil
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
Application number
GB1485071*[A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1331657A publication Critical patent/GB1331657A/en
Expired legal-status Critical Current

Links

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
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/485—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by the process of building-up characters or image elements applicable to two or more kinds of printing or marking processes
    • B41J2/495—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by the process of building-up characters or image elements applicable to two or more kinds of printing or marking processes by selective printing from a rotating helical member

Landscapes

  • Accessory Devices And Overall Control Thereof (AREA)
  • Impression-Transfer Materials And Handling Thereof (AREA)
  • Dot-Matrix Printers And Others (AREA)

Abstract

1331657 Selective printing J T POTTER 13 May 1971 [21 May 1970] 14850/71 Heading B6F A selective printer comprises a rotating helical bar 13 and print hammers, each hammer including a blade 17 coupled to a coil 33 located in a magnetic field between polepieces 37, 35. The hammers are driven by passing an electrical pulse through the coil, and are biased to the rest position by magnetic attraction, the blade 17 being of material of high permeability. The magnetic field is generated by a permanent magnet 45 connected to soft iron members 43, 47 and polepieces 35, 37. The blades are mounted on pivotable rigid lightweight frames 23. Printing is effected on paper 19 through an ink ribbon or by inking the helical bar 13. The paper may be fed continuously, the hammers being skewed to compensate for movement of the paper. Hammer rebound is prevented by resilient stops 48.
GB1485071*[A 1970-05-21 1971-05-13 Printing apparatus Expired GB1331657A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00039314A US3834304A (en) 1970-05-21 1970-05-21 Helical bar printer and hammer therefor

Publications (1)

Publication Number Publication Date
GB1331657A true GB1331657A (en) 1973-09-26

Family

ID=21904809

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1485071*[A Expired GB1331657A (en) 1970-05-21 1971-05-13 Printing apparatus

Country Status (5)

Country Link
US (1) US3834304A (en)
AT (1) AT316180B (en)
CA (1) CA953570A (en)
DE (1) DE2125066A1 (en)
GB (1) GB1331657A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4004672A (en) * 1974-02-22 1977-01-25 Canon Kabushiki Kaisha Printing control device
US4236842A (en) * 1978-08-03 1980-12-02 A. B. Dick Company Hammer support for rotary printing apparatus
US4263847A (en) * 1978-09-20 1981-04-28 Citizen Watch Co., Ltd. Printing mechanism for dot matrix impact printers
US4465386A (en) * 1979-09-17 1984-08-14 Seikosha Co., Ltd. Impact type dot printer
DE3034121A1 (en) * 1979-09-17 1981-04-02 Kabushiki Kaisha Seikosha, Tokyo GRID PRINTER
US4362405A (en) * 1980-12-05 1982-12-07 Seikosha Co., Ltd. Moving coil type printing head

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE564734A (en) * 1957-02-13
FR1204680A (en) * 1958-06-02 1960-01-27 Bull Machines Sa Improvements to electronic trigger devices
US3138427A (en) * 1959-12-23 1964-06-23 Litton Systems Inc Pressure-responsive recording
US3159710A (en) * 1959-12-23 1964-12-01 Litton Systems Inc Pressure-responsive recording having magnetically biased marking mechanism
US3112358A (en) * 1960-02-17 1963-11-26 Anritsu Dempa Kogyo Kabushiki Facsimile system
US3138429A (en) * 1961-05-16 1964-06-23 Litton Systems Inc Electric signal recorders
FR1351449A (en) * 1962-11-12 1964-02-07 Improvements to recording devices
US3279362A (en) * 1965-06-11 1966-10-18 Data Products Corp Printing hammer
US3409904A (en) * 1966-12-20 1968-11-05 Motorola Inc Printer having piezoelectric crystal printing means
US3478289A (en) * 1968-02-12 1969-11-11 Robert A Parnell Permanent magnet assembly for a loudspeaker assembly

Also Published As

Publication number Publication date
DE2125066A1 (en) 1971-12-09
US3834304A (en) 1974-09-10
AT316180B (en) 1974-06-25
CA953570A (en) 1974-08-27

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees
427A Application made for restoration (sect. 27/1949)
427C Application for amendment of specification now open to opposition (sect. 27/1949)
427F Application abandoned (sect. 27/1949)