GB709726A - Improvements in or relating to printing telegraph apparatus - Google Patents

Improvements in or relating to printing telegraph apparatus

Info

Publication number
GB709726A
GB709726A GB986851A GB986851A GB709726A GB 709726 A GB709726 A GB 709726A GB 986851 A GB986851 A GB 986851A GB 986851 A GB986851 A GB 986851A GB 709726 A GB709726 A GB 709726A
Authority
GB
United Kingdom
Prior art keywords
lever
carriage
projection
letter
engages
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
GB986851A
Inventor
Leslie Bernard Salmon
Leslie Thomas Tedham
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.)
Creed and Co Ltd
Original Assignee
Creed and Co 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 Creed and Co Ltd filed Critical Creed and Co Ltd
Priority to GB986851A priority Critical patent/GB709726A/en
Priority to CH317708D priority patent/CH317708A/en
Publication of GB709726A publication Critical patent/GB709726A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L13/00Details of the apparatus or circuits covered by groups H04L15/00 or H04L17/00
    • H04L13/18Details of the apparatus or circuits covered by groups H04L15/00 or H04L17/00 of receivers
    • H04L13/186Page printing; tabulating

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Character Spaces And Line Spaces In Printers (AREA)

Abstract

709,726. Typewriters &c. CREED & CO.. Ltd. April 25, 1952 [April 27, 1951], No. 9868/51. Class 100 (4). [Also in Group XL (b)] In page-printing telegraph apparatus comprising means for imparting a series of letter-feed movements to a carriage and trip means operable to cause said carriage to be returned to its initial position, a release member controlled by said carriage and operating to actuate said trip means after a predetermined number of letter feed movements and mechanically operable resetting means for restoring said trip means to its inoperative condition, means is provided for delaying the operation of said resetting means until the carriage has completed at least a part of its return movement. The invention is shown as applied to a Creed No. 7 Printer in which a rack 1, Fig. 1B, attached to the carriage is moved by a pinion 2 carried by a spring drum 3 secured to a ratchet wheel 4 engaged by a feed pawl 5 and a retaining pawl 6, the pawl 5 being oscillated by a lever 10 connected to a lever 9 carrying an arm 8 reciprocated by a cross-head 7 for each printing operation. When letter-feed is to be suppressed a bar 12 depresses the arm 8 so that the movement of the cross-head is disconnected from the lever 9. To effect carriagereturn the operation of an arm 14, Fig. 1C, rocks a lever 15 so that a bar 16 oscillated by the cross-head 7 rocks a lever 18 which disengages the pawls 5, 6 and allows the carriage to return under the action of its spring drum. The lever 18 is latched by a detent 19 which is released when the returning carriage engages an upstanding projection 20. The drum 3 is provided with an adjustable sector 32 carrying a projection 31 and can be set to operate the carriage return arm after a predetermined number of letter-feed movements. At the specified position, the projection 31 engages a pivoted lever 34, Fig. 2, so that its upper end is moved clear of a turnedover projection on a release lever 37 which moves downwards under the action of a spring 36 and lever 41 so that it engages the lever 15 which controls the return of the carriage. As the drum rotates backwardly the projection 31 engages the uplifted end of the lever 41 and moves the bar 37 upwardly until it is relatched by the end of the lever 34.
GB986851A 1951-04-27 1951-04-27 Improvements in or relating to printing telegraph apparatus Expired GB709726A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB986851A GB709726A (en) 1951-04-27 1951-04-27 Improvements in or relating to printing telegraph apparatus
CH317708D CH317708A (en) 1951-04-27 1952-11-21 Sheet pressure telegraph apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB986851A GB709726A (en) 1951-04-27 1951-04-27 Improvements in or relating to printing telegraph apparatus

Publications (1)

Publication Number Publication Date
GB709726A true GB709726A (en) 1954-06-02

Family

ID=9880258

Family Applications (1)

Application Number Title Priority Date Filing Date
GB986851A Expired GB709726A (en) 1951-04-27 1951-04-27 Improvements in or relating to printing telegraph apparatus

Country Status (2)

Country Link
CH (1) CH317708A (en)
GB (1) GB709726A (en)

Also Published As

Publication number Publication date
CH317708A (en) 1956-11-30

Similar Documents

Publication Publication Date Title
SE307142B (en)
US2831558A (en) Variable proportional letter feed mechanism
GB709726A (en) Improvements in or relating to printing telegraph apparatus
US1942216A (en) Paper carriage equipment for
US3338368A (en) Function operating device for an electric typewriter
US2349674A (en) Printing telegraph apparatus
US2164422A (en) Typewriting machine
US2945578A (en) Variable spacing mechanism for typewriters
GB1189677A (en) Improvements in or relating to Teleprinters
US3417849A (en) Backspacing device for a proportionally spacing typewriter
US2633966A (en) Operation control interlocking mechanism for typewriters or like machines
US3358805A (en) Express margin setting device for typewriters
US1933570A (en) Printing instrumentalities for typewriting machines
US2411496A (en) Power operated typewriting machine
US624297A (en) chapman
US2675110A (en) Jam release means for typewriting machines
US727001A (en) Type-writing machine.
GB425691A (en) Improvements in or relating to power operated typewriters
US2886638A (en) Backspace mechanism
US1544240A (en) Typewriting machine
US1665594A (en) Telegraph printer
US1011722A (en) Type-writing machine.
US906600A (en) Type-writer.
US782112A (en) Carriage-return mechanism for type-writers.
US2310717A (en) Typewriting machine