GB1438739A - Typewriter spacing selection and control mechanism - Google Patents

Typewriter spacing selection and control mechanism

Info

Publication number
GB1438739A
GB1438739A GB4189874A GB4189874A GB1438739A GB 1438739 A GB1438739 A GB 1438739A GB 4189874 A GB4189874 A GB 4189874A GB 4189874 A GB4189874 A GB 4189874A GB 1438739 A GB1438739 A GB 1438739A
Authority
GB
United Kingdom
Prior art keywords
pawl
pawls
sept
control mechanism
print head
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
GB4189874A
Other languages
English (en)
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.)
Hermes Precisa International SA
Original Assignee
Hermes Precisa International SA
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 Hermes Precisa International SA filed Critical Hermes Precisa International SA
Publication of GB1438739A publication Critical patent/GB1438739A/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
    • B41J19/00—Character- or line-spacing mechanisms
    • B41J19/18—Character-spacing or back-spacing mechanisms; Carriage return or release devices therefor
    • B41J19/34—Escapement-feed character-spacing mechanisms
    • B41J19/58—Differential or variable-spacing arrangements
    • 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
    • B41J19/00—Character- or line-spacing mechanisms
    • B41J19/18—Character-spacing or back-spacing mechanisms; Carriage return or release devices therefor
    • B41J19/34—Escapement-feed character-spacing mechanisms
    • B41J19/42—Escapements having two pawls or like detents
    • B41J19/44—Escapements having two pawls or like detents coacting with two toothed members, e.g. racks or wheels

Landscapes

  • Character Spaces And Line Spaces In Printers (AREA)
  • Knitting Machines (AREA)
  • Push-Button Switches (AREA)
  • Common Mechanisms (AREA)
GB4189874A 1973-09-27 1974-09-26 Typewriter spacing selection and control mechanism Expired GB1438739A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1383073A CH566213A5 (https=) 1973-09-27 1973-09-27

Publications (1)

Publication Number Publication Date
GB1438739A true GB1438739A (en) 1976-06-09

Family

ID=4395693

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4189874A Expired GB1438739A (en) 1973-09-27 1974-09-26 Typewriter spacing selection and control mechanism

Country Status (7)

Country Link
US (1) US3912067A (https=)
CH (1) CH566213A5 (https=)
DE (1) DE2445970C3 (https=)
FR (1) FR2245491B1 (https=)
GB (1) GB1438739A (https=)
IT (1) IT1020868B (https=)
SE (1) SE400051B (https=)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1857771A (en) * 1929-06-05 1932-05-10 Varityper Inc Variable feed mechanism for typewriter carriages

Also Published As

Publication number Publication date
DE2445970B2 (de) 1977-11-24
FR2245491B1 (https=) 1982-09-03
US3912067A (en) 1975-10-14
IT1020868B (it) 1977-12-30
DE2445970C3 (de) 1978-07-20
SE400051B (sv) 1978-03-13
DE2445970A1 (de) 1975-04-10
SE7412037L (https=) 1975-04-01
FR2245491A1 (https=) 1975-04-25
CH566213A5 (https=) 1975-09-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee