GB490413A - Improvements in or relating to printing telegraph apparatus - Google Patents

Improvements in or relating to printing telegraph apparatus

Info

Publication number
GB490413A
GB490413A GB16710/38A GB1671038A GB490413A GB 490413 A GB490413 A GB 490413A GB 16710/38 A GB16710/38 A GB 16710/38A GB 1671038 A GB1671038 A GB 1671038A GB 490413 A GB490413 A GB 490413A
Authority
GB
United Kingdom
Prior art keywords
wheel
frame
lever
return movement
detent
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
GB16710/38A
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
Publication of GB490413A publication Critical patent/GB490413A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L19/00Apparatus or local circuits for step-by-step systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L17/00Apparatus or local circuits for transmitting or receiving codes wherein each character is represented by the same number of equal-length code elements, e.g. Baudot code
    • H04L17/02Apparatus or circuits at the transmitting end
    • H04L17/04Apparatus or circuits at the transmitting end with keyboard co-operating with code-bars

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmission Devices (AREA)
  • Mechanical Operated Clutches (AREA)
  • Gear Transmission (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Common Mechanisms (AREA)
  • Pile Receivers (AREA)
  • Impact Printers (AREA)

Abstract

490,413. Type printing telegraphy. CREED & CO., Ltd., THOMPSON, A. E., and SALMON, R. D. Jan. 12, 1937, No. 16710/38. Divided out of 490,361. [Class 40 (iii)] In a step-by-step telegraph receiver, the printing-hammer is actuated automatically on the return movement of a lever thrown rapidly away from a cam wheel rotating with the type wheel and delayed in its return movement after the rotation has ceased. A threearmed lever 47, 48, 49 mounted on a pivot 51 is thrown away from a star wheel 53, rotating with the type wheel shaft, by means of a roller 52 carried on its arm 48. Its return movement is delayed by means of a ratchet driven escapement 55 connected to its arm 49 so timed that the roller 52 cannot return into a hollow of the star wheel 53 until after the latter has ceased to rotate. As the arm 47 moves to the left it allows a rod 44 carried on a spring mounted lever 45 to rise slightly behind it and on its return movement it tilts this rod further and with it a frame 41, the lower end of which normally holds a detent 38 in the path of a wheel 37. The tilting movement of the frame 41 releases this detent, allowing rotation of the wheel 37 and shaft 35 through a quarter of a revolution, the whole mechanism being reset immediately by the co-operation of a cam wheel 62 with a roller 61 associated with the detent 38 and lever 45. On the shaft 35 is mounted a four lobed cam, Fig. 4 (not shown), which at each quarter revolution throws upwards a frame to which are pivoted the printing-hammers, these being carried on to the type wheels by their momentum acquired when the frame is stopped by a paper shield. Specification 490,361 is referred to.
GB16710/38A 1937-01-12 1937-01-12 Improvements in or relating to printing telegraph apparatus Expired GB490413A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB210431X 1937-01-12

Publications (1)

Publication Number Publication Date
GB490413A true GB490413A (en) 1938-08-12

Family

ID=10156205

Family Applications (8)

Application Number Title Priority Date Filing Date
GB15545/37A Expired GB490404A (en) 1937-01-12 1937-01-12 Improvements in or relating to transmitters for step-by-step telegraph systems
GB973/37A Expired GB490361A (en) 1937-01-12 1937-01-12 Improvements in or relating to printing telegraph apparatus
GB16710/38A Expired GB490413A (en) 1937-01-12 1937-01-12 Improvements in or relating to printing telegraph apparatus
GB22843/38A Expired GB501717A (en) 1937-01-12 1937-08-27 Improvements in or relating to telegraph apparatus
GB16778/38A Expired GB501420A (en) 1937-01-12 1937-08-27 Improvements in or relating to printing telegraph apparatus
GB20844/38A Expired GB503384A (en) 1937-01-12 1937-08-27 Improvements in or relating to printing telegraph apparatus
GB16773/38A Expired GB502521A (en) 1937-01-12 1937-09-17 Improvements in or relating to transmitters for step-by-step telegraph systems
GB16774/38A Expired GB502522A (en) 1937-01-12 1937-09-17 Improvements in or relating to keyboard arrangements

Family Applications Before (2)

Application Number Title Priority Date Filing Date
GB15545/37A Expired GB490404A (en) 1937-01-12 1937-01-12 Improvements in or relating to transmitters for step-by-step telegraph systems
GB973/37A Expired GB490361A (en) 1937-01-12 1937-01-12 Improvements in or relating to printing telegraph apparatus

Family Applications After (5)

Application Number Title Priority Date Filing Date
GB22843/38A Expired GB501717A (en) 1937-01-12 1937-08-27 Improvements in or relating to telegraph apparatus
GB16778/38A Expired GB501420A (en) 1937-01-12 1937-08-27 Improvements in or relating to printing telegraph apparatus
GB20844/38A Expired GB503384A (en) 1937-01-12 1937-08-27 Improvements in or relating to printing telegraph apparatus
GB16773/38A Expired GB502521A (en) 1937-01-12 1937-09-17 Improvements in or relating to transmitters for step-by-step telegraph systems
GB16774/38A Expired GB502522A (en) 1937-01-12 1937-09-17 Improvements in or relating to keyboard arrangements

Country Status (6)

Country Link
US (1) US2215802A (en)
BE (2) BE425717A (en)
CH (2) CH233476A (en)
FR (1) FR831558A (en)
GB (8) GB490404A (en)
NL (1) NL58050C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2211790A (en) * 1987-10-31 1989-07-12 Triumph Adler Ag A device for impressing characters

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR916496A (en) * 1945-06-15 1946-12-06 Mecanique Et Transmission Metr New keypad manipulator for pulse-counting telegraphs
US2622153A (en) * 1948-10-15 1952-12-16 Teletype Corp Multiplex telegraph system utilizing electronic distributors
DE960545C (en) * 1953-03-21 1957-03-21 Lorenz C Ag Key lock, especially for teletyping machines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2211790A (en) * 1987-10-31 1989-07-12 Triumph Adler Ag A device for impressing characters

Also Published As

Publication number Publication date
GB502522A (en) 1939-03-17
CH233476A (en) 1944-07-31
GB501420A (en) 1939-02-27
BE425638A (en)
US2215802A (en) 1940-09-24
GB490361A (en) 1938-08-12
BE425717A (en)
NL58050C (en)
GB501717A (en) 1939-02-27
CH210431A (en) 1940-07-15
GB503384A (en) 1939-03-27
GB502521A (en) 1939-03-17
GB490404A (en) 1938-08-12
FR831558A (en) 1938-09-08

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