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GB1201085A - Hammer block assembly for line printer - Google Patents

Hammer block assembly for line printer

Info

Publication number
GB1201085A
GB1201085A GB29536/67A GB2953667A GB1201085A GB 1201085 A GB1201085 A GB 1201085A GB 29536/67 A GB29536/67 A GB 29536/67A GB 2953667 A GB2953667 A GB 2953667A GB 1201085 A GB1201085 A GB 1201085A
Authority
GB
United Kingdom
Prior art keywords
hammers
block assembly
comb
june
line
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
GB29536/67A
Inventor
Cecil Bragg
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.)
Fujitsu Services Ltd
Original Assignee
Fujitsu Services 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 Fujitsu Services Ltd filed Critical Fujitsu Services Ltd
Priority to GB29536/67A priority Critical patent/GB1201085A/en
Priority to DE19681761699 priority patent/DE1761699A1/en
Priority to US740530A priority patent/US3556002A/en
Priority to FR1570305D priority patent/FR1570305A/fr
Publication of GB1201085A publication Critical patent/GB1201085A/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
    • B41J9/00—Hammer-impression mechanisms
    • B41J9/02—Hammers; Arrangements thereof
    • B41J9/10—Hammers; Arrangements thereof of more than one hammer, e.g. one for each character position

Landscapes

  • Impact Printers (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)

Abstract

1,201,085. Selective printing. INTERNATIONAL COMPUTERS Ltd. 26 June, 1968 [27 June, 1967], No. 29536/67. Heading B6F. Hammer construction and arrangement.-A hammer block assembly for a line printer comprises a transverse retaining bar 21 with a straight edge 21A defining a line adjacent the printing line and a comb 23 with slots 23A which extend beyond the edge 21A, the hammers 13, 113 &c. being held between the teeth of the comb 23 and against the straight edge. As described four retainer bars 21, 21<SP>1</SP>, 25, 25<SP>1</SP> and four combs 23, 23<SP>1</SP>, 26, 26<SP>1</SP> are mounted on a block 20. Alternate slots in the lower combs 26, 26<SP>1</SP> are wider so the hammers have only a three-point bearing and do not bind. Lower plates 37, 37<SP>1</SP> have extensions 37A, 37A<SP>1</SP> to form lower stops for the hammers by engagement of shoulders 39. Actuation of hammers.-The hammers are operated by electromagnets having levers 17 which extend alternately in opposite directions. Resetting and anti-rebound arrangements.- Flat springs 40, 40<SP>1</SP> with tongues 40A, 40A<SP>1</SP> engaging shoulders 41, 141, restore the hammers after impact. The springs are formed of resilient material such that it is strong enough to prevent rebound.
GB29536/67A 1967-06-27 1967-06-27 Hammer block assembly for line printer Expired GB1201085A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB29536/67A GB1201085A (en) 1967-06-27 1967-06-27 Hammer block assembly for line printer
DE19681761699 DE1761699A1 (en) 1967-06-27 1968-06-27 Hammer block arrangement for line printer
US740530A US3556002A (en) 1967-06-27 1968-06-27 Hammer block assembly for line printer
FR1570305D FR1570305A (en) 1967-06-27 1968-06-27

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB29536/67A GB1201085A (en) 1967-06-27 1967-06-27 Hammer block assembly for line printer

Publications (1)

Publication Number Publication Date
GB1201085A true GB1201085A (en) 1970-08-05

Family

ID=10293093

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29536/67A Expired GB1201085A (en) 1967-06-27 1967-06-27 Hammer block assembly for line printer

Country Status (4)

Country Link
US (1) US3556002A (en)
DE (1) DE1761699A1 (en)
FR (1) FR1570305A (en)
GB (1) GB1201085A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4044455A (en) * 1975-06-05 1977-08-30 Canon Kabushiki Kaisha Method of making a printing hammer unit

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL124934C (en) * 1957-07-30
US3745917A (en) * 1971-06-16 1973-07-17 Datadyne Corp Digital printer hammer assembly
US3832946A (en) * 1971-11-04 1974-09-03 Pitney Bowes Inc Computer responsive supplemental printer
US3724366A (en) * 1971-12-13 1973-04-03 Pitney Bowes Alpex High-speed parallel printer
US3805695A (en) * 1972-09-18 1974-04-23 Teletype Corp Armature mounting assembly for a teleprinter
US3811377A (en) * 1973-01-02 1974-05-21 Ibm Impact printer
CA1026994A (en) * 1974-01-07 1978-02-28 Computer Peripherals Print hammer
US4005650A (en) * 1974-01-07 1977-02-01 Computer Peripherals, Inc. Print hammer
JPS5819636Y2 (en) * 1974-07-08 1983-04-22 東芝テック株式会社 injisouchi
US4037532A (en) * 1976-03-08 1977-07-26 Xerox Corporation Hammer assembly
JPS5950515B2 (en) * 1977-05-13 1984-12-08 日立工機株式会社 Printing hammer device
US4373440A (en) * 1979-08-13 1983-02-15 Jezbera Val K Hammer bank assembly
DE3067861D1 (en) * 1980-09-19 1984-06-20 Ibm Deutschland Bank for the receipt of several print hammer units
US4683820A (en) * 1984-01-20 1987-08-04 Varitronic Systems, Inc. Printing mechanism
EP0169196A4 (en) * 1984-01-20 1987-04-14 Varitronic Systems Inc Lever driven hammer for dry film printer.
US5474393A (en) * 1993-09-16 1995-12-12 Maverick International, Inc. Compact remote-driven encoder
US6089769A (en) * 1998-09-29 2000-07-18 Printronix, Inc. Line printer hammerbank cover with spaced apart thickened sections

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2787210A (en) * 1953-01-22 1957-04-02 Jr Francis H Shepard Hammer impelling means in high speed printers
US2873669A (en) * 1954-08-24 1959-02-17 Sperry Rand Corp Tabulating machine for billing
US2787952A (en) * 1955-04-29 1957-04-09 Curtis H Roche High-speed printer apparatus
US3106889A (en) * 1959-12-02 1963-10-15 Atvidabergs Ind Ab Positioning device for printing type characters
US3094064A (en) * 1960-01-04 1963-06-18 Ibm Positioning mechanism in selective type printing machines
US3090297A (en) * 1960-11-17 1963-05-21 Honeywell Regulator Co Mechanical apparatus
US3152540A (en) * 1961-09-18 1964-10-13 Holley Comp Products Company Hammer mechanism
US3306191A (en) * 1962-12-18 1967-02-28 Anelex Corp High speed printer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4044455A (en) * 1975-06-05 1977-08-30 Canon Kabushiki Kaisha Method of making a printing hammer unit

Also Published As

Publication number Publication date
US3556002A (en) 1971-01-19
FR1570305A (en) 1969-06-06
DE1761699A1 (en) 1971-08-05

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee