GB1237889A - - Google Patents

Info

Publication number
GB1237889A
GB1237889A GB1237889DA GB1237889A GB 1237889 A GB1237889 A GB 1237889A GB 1237889D A GB1237889D A GB 1237889DA GB 1237889 A GB1237889 A GB 1237889A
Authority
GB
United Kingdom
Prior art keywords
spring
lever
hammer
characters
impact
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
Other languages
English (en)
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 filed Critical
Publication of GB1237889A publication Critical patent/GB1237889A/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
    • B41J9/26—Means for operating hammers to effect impression
    • B41J9/30—Springs

Landscapes

  • Accessory Devices And Overall Control Thereof (AREA)
GB1237889D 1967-11-09 1968-11-07 Expired GB1237889A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US68133667A 1967-11-09 1967-11-09

Publications (1)

Publication Number Publication Date
GB1237889A true GB1237889A (fr) 1971-06-30

Family

ID=24734844

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1237889D Expired GB1237889A (fr) 1967-11-09 1968-11-07

Country Status (3)

Country Link
US (1) US3485336A (fr)
FR (1) FR1570964A (fr)
GB (1) GB1237889A (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1918300A (en) * 1929-10-15 1933-07-18 Coxhead Ralph C Corp Means to vary the blow of the printing hammer
US2051112A (en) * 1932-11-28 1936-08-18 Coxhead Ralph C Corp Means to vary the impact of the printing element in typewriting machines
US3239049A (en) * 1962-06-27 1966-03-08 Ibm Impression control mechanism automatically selecting one of a plurality of cams
GB1037816A (en) * 1962-09-28 1966-08-03 Olivetti & Co Spa Power operated typewriter
US3382963A (en) * 1966-08-17 1968-05-14 Ibm Printing apparatus with no-print feature

Also Published As

Publication number Publication date
US3485336A (en) 1969-12-23
FR1570964A (fr) 1969-06-13

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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