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GB1489792A - Printers - Google Patents

Printers

Info

Publication number
GB1489792A
GB1489792A GB1831475A GB1831475A GB1489792A GB 1489792 A GB1489792 A GB 1489792A GB 1831475 A GB1831475 A GB 1831475A GB 1831475 A GB1831475 A GB 1831475A GB 1489792 A GB1489792 A GB 1489792A
Authority
GB
United Kingdom
Prior art keywords
solenoid
gear
line feed
pin
energized
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
GB1831475A
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.)
AT&T Teletype Corp
Original Assignee
Teletype Corp
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 Teletype Corp filed Critical Teletype Corp
Publication of GB1489792A publication Critical patent/GB1489792A/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
    • B41J19/76—Line-spacing mechanisms
    • B41J19/78—Positive-feed mechanisms
    • B41J19/92—Electromagnetically-operated mechanisms

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Character Spaces And Line Spaces In Printers (AREA)
  • Handling Of Sheets (AREA)
  • Common Mechanisms (AREA)

Abstract

1489792 Selective printing TELETYPE CORP 1 May 1975 [8 May 1974] 18314/75 Heading B6F Line feed of platen 39 is effected by the selective engagement of platen gear 102 with gear 107 when solenoid 97 is energized. Stepping motor 22, which drives a carriage 17 carrying a needle printer 15 by rotation of lead screw 20 also drives gear 107. Thus motor 22 can simultaneously effect character spacing and line feed. The screw 20 and gears can be proportioned so that a single line feed occurs for every character space moved by the carriage 17. Solenoid 97 is energized for normal single line feed when the carriage is outside the printing margin. Gear 102 is on a plate 105 pivoted about pin 118 and its drive is transmitted to the platen 39 by an Oldham coupling, Fig. 9 (not shown). Energizing the solenoid 97 pivots armature 99 about pin 138 so that its end 99a rocks the plate 105 to engage gears 102, 107. As gear 102 is then caused to rotate, a ratchet arm pivoted about pin 143 and coupled to the armature by pin 138 is rocked by ratchet wheel 144 towards the solenoid 97. As it is still energized, the end 99c is attracted and the ratchet arm held clear of wheel 144. The solenoid 97 may remain energized to permit multiple line feed without the ratchet having to re-engage for each line space of the multiple feed.
GB1831475A 1974-05-08 1975-05-01 Printers Expired GB1489792A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US46804874A 1974-05-08 1974-05-08

Publications (1)

Publication Number Publication Date
GB1489792A true GB1489792A (en) 1977-10-26

Family

ID=23858237

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1831475A Expired GB1489792A (en) 1974-05-08 1975-05-01 Printers

Country Status (5)

Country Link
JP (1) JPS50158419A (en)
CA (1) CA1023994A (en)
DE (1) DE2520133A1 (en)
GB (1) GB1489792A (en)
IT (1) IT1037767B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4699534A (en) * 1983-03-04 1987-10-13 Canon Kabushiki Kaisha Sheet advancing device
US4971466A (en) * 1983-05-24 1990-11-20 Canon Kabushiki Kaisha Printing apparatus having a rotatable member rotatable in incremental steps smaller than the pitch of a detent gear and including means for accurately retaining the rotatable member at a predetermined position when the detent mechanism is inoperable
US4976557A (en) * 1985-02-20 1990-12-11 Canon Kabushiki Kaisha Sheet conveying device with axially disengaged transmitter of restraining force
CN115122782A (en) * 2022-06-30 2022-09-30 合肥工业大学智能制造技术研究院 A pin-type braille typewriter

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54138710A (en) * 1978-04-17 1979-10-27 Oki Electric Ind Co Ltd Printer

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4699534A (en) * 1983-03-04 1987-10-13 Canon Kabushiki Kaisha Sheet advancing device
US4971466A (en) * 1983-05-24 1990-11-20 Canon Kabushiki Kaisha Printing apparatus having a rotatable member rotatable in incremental steps smaller than the pitch of a detent gear and including means for accurately retaining the rotatable member at a predetermined position when the detent mechanism is inoperable
US4976557A (en) * 1985-02-20 1990-12-11 Canon Kabushiki Kaisha Sheet conveying device with axially disengaged transmitter of restraining force
CN115122782A (en) * 2022-06-30 2022-09-30 合肥工业大学智能制造技术研究院 A pin-type braille typewriter
CN115122782B (en) * 2022-06-30 2024-03-12 合肥工业大学智能制造技术研究院 A pin-type Braille typewriter

Also Published As

Publication number Publication date
IT1037767B (en) 1979-11-20
JPS50158419A (en) 1975-12-22
DE2520133A1 (en) 1975-11-27
CA1023994A (en) 1978-01-10

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee