GB1321969A - Printing telegraph mechanism - Google Patents

Printing telegraph mechanism

Info

Publication number
GB1321969A
GB1321969A GB2559772A GB1321969DA GB1321969A GB 1321969 A GB1321969 A GB 1321969A GB 2559772 A GB2559772 A GB 2559772A GB 1321969D A GB1321969D A GB 1321969DA GB 1321969 A GB1321969 A GB 1321969A
Authority
GB
United Kingdom
Prior art keywords
yoke
printing
rotatable
magnetic
loops
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
GB2559772A
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.)
Creed and Co Ltd
Original Assignee
Creed and Co Ltd
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 Creed and Co Ltd filed Critical Creed and Co Ltd
Publication of GB1321969A publication Critical patent/GB1321969A/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
    • B41J2/22—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of impact or pressure on a printing material or impression-transfer material
    • B41J2/23—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of impact or pressure on a printing material or impression-transfer material using print wires
    • B41J2/27—Actuators for print wires
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L21/00—Apparatus or local circuits for mosaic printer telegraph systems
    • H04L21/04—Apparatus or local circuits for mosaic printer telegraph systems at the receiving end

Abstract

1321969 Selective printing CREED & CO Ltd 1 June 1972 25597/72 Heading B6F A needle printer comprises a U-section magnetic yoke 1, a magnetic member 7 rotatable between the arms 2, 3 of the yoke 1, means such as a coil 5 producing magnetic flux in the yoke, and a plurality of rigid conductive loops 8 each rigidly attached to a printing needle (not shown) and each associated with a switching device (9, Fig. 1b, not shown), the loops being positioned in a gap between the rotatable member 7 and an arm of the magnetic yoke 1, such that when a switching device is closed, eddy currents are induced in the associated loop 8, whereby the loop 8 and its associated printing needle are driven towards a record web (not shown). The loops 8 and the needles are mounted on a printing carriage displaceable along the length of the yoke 1 and including a field-concentrating pole piece 4. The coil 5 may be replaced by a permanent magnet (6<SP>1</SP>, Fig. 2, not shown), or the rotatable magnetic member may itself be a permanent magnet.
GB2559772A 1972-06-01 1972-06-01 Printing telegraph mechanism Expired GB1321969A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2559772 1972-06-01

Publications (1)

Publication Number Publication Date
GB1321969A true GB1321969A (en) 1973-07-04

Family

ID=10230273

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2559772A Expired GB1321969A (en) 1972-06-01 1972-06-01 Printing telegraph mechanism

Country Status (5)

Country Link
US (1) US3830976A (en)
DE (1) DE2327683A1 (en)
ES (1) ES415461A1 (en)
FR (1) FR2186893A5 (en)
GB (1) GB1321969A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4022311A (en) * 1975-11-19 1977-05-10 Ncr Corporation Electrodynamic actuator
GB2023353B (en) * 1978-06-19 1982-10-06 Ibm Actuator for a printer
US4472072A (en) * 1981-07-30 1984-09-18 Matsushita Electric Industrial Co., Ltd. Printing apparatus

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3477365A (en) * 1966-07-22 1969-11-11 Mohawk Data Sciences Corp Hysteresis drive for high speed print hammers

Also Published As

Publication number Publication date
FR2186893A5 (en) 1974-01-11
AU5641273A (en) 1974-12-05
ES415461A1 (en) 1976-02-16
DE2327683A1 (en) 1973-12-13
US3830976A (en) 1974-08-20

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee