GB707148A - Improvements in duplicating apparatus for typewriting and like machines - Google Patents

Improvements in duplicating apparatus for typewriting and like machines

Info

Publication number
GB707148A
GB707148A GB768551A GB768551A GB707148A GB 707148 A GB707148 A GB 707148A GB 768551 A GB768551 A GB 768551A GB 768551 A GB768551 A GB 768551A GB 707148 A GB707148 A GB 707148A
Authority
GB
United Kingdom
Prior art keywords
ribbon
guide
spool
roller
along
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
GB768551A
Inventor
James Smith
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.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
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 National Research Development Corp UK filed Critical National Research Development Corp UK
Priority to GB768551A priority Critical patent/GB707148A/en
Publication of GB707148A publication Critical patent/GB707148A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J35/00Other apparatus or arrangements associated with, or incorporated in, ink-ribbon mechanisms
    • B41J35/30Manifolding or like arrangements

Landscapes

  • Impression-Transfer Materials And Handling Thereof (AREA)

Abstract

707,148. Typewriters. NATIONAL RESEARCH DEVELOPMENT CORPORATION. May 15, 1951 [April 3, 1951], No. 7685/51. Class 100 (4) Ink-ribbon mechanism.-A duplicating arrangement is attached to a stationary part of a typewriter or the like machine and comprises a longitudinally slotted duplicate ribbon guide 22 positioned along the printing line, a supply spool, and a take-up spool intermittently operated by a moving part of the machine carriage as it moves in a letter-spacing direction. As shown, the arrangement is applied to an attachment for a teleprinter comprising a frame 16 having supports 17 and a fixing boss 18 with a locking catch 19 for fitting to the printer. The frame has end brackets 11 carrying a fixed spindle 10 along which a machine platen 5 slides, a track rail 13, and a carriage slide rail 9. A carriage 6 supports the platen 5 for movement along the spindle 10 and is formed at the rear with a paper carrier 7 supported by wheels 12 running on the rail 13. The brackets 11, Figs. 1a, 1, support, by screws 24, the ends of the duplicate ribbon guide 22 formed from thin metal or other thin strip, and has the longitudinal edges thereof doubled over to engage the edges of the ribbon. The ribbon 26 is advanced rightwardly by a supply-roll, to the left-hand end of the guide 22 over a roller 25 and through the guide 22 which leads it along the printing line to a second roller 25, Fig. 4, from where it is advanced by feed rollers 32, 33 over guide rollers 34, 35 to the take-up spool 31 frictionally coupled to a shaft 58 driven by bevel gearing 59 from a horizontal shaft 36. Shaft 36 also drives the feed roller 32 and is rotated by a ratchet wheel 37 from a pawl 50 on a plunger 43 spring urged into contact with a bar 40 which reciprocates during type action. The feed roller 33 is formed with axially separated knurled portions with an intermediate portion which does not contact the ribbon. An extension of the roller permits hand adjustment of the ribbon. Ink-ribbon.-The duplicating ribbon may have the edges and end sections free of transfer material and the end section is stiffened to facilitate threading onto the spool.
GB768551A 1951-04-03 1951-04-03 Improvements in duplicating apparatus for typewriting and like machines Expired GB707148A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB768551A GB707148A (en) 1951-04-03 1951-04-03 Improvements in duplicating apparatus for typewriting and like machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB768551A GB707148A (en) 1951-04-03 1951-04-03 Improvements in duplicating apparatus for typewriting and like machines

Publications (1)

Publication Number Publication Date
GB707148A true GB707148A (en) 1954-04-14

Family

ID=9837828

Family Applications (1)

Application Number Title Priority Date Filing Date
GB768551A Expired GB707148A (en) 1951-04-03 1951-04-03 Improvements in duplicating apparatus for typewriting and like machines

Country Status (1)

Country Link
GB (1) GB707148A (en)

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