GB490413A - Improvements in or relating to printing telegraph apparatus - Google Patents
Improvements in or relating to printing telegraph apparatusInfo
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L19/00—Apparatus or local circuits for step-by-step systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L17/00—Apparatus 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
- H04L17/02—Apparatus or circuits at the transmitting end
- H04L17/04—Apparatus 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.
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)
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)
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 |
-
0
- BE BE425638D patent/BE425638A/xx unknown
- BE BE425717D patent/BE425717A/xx unknown
- NL NL58050D patent/NL58050C/xx active
-
1937
- 1937-01-12 GB GB15545/37A patent/GB490404A/en not_active Expired
- 1937-01-12 GB GB973/37A patent/GB490361A/en not_active Expired
- 1937-01-12 GB GB16710/38A patent/GB490413A/en not_active Expired
- 1937-08-27 GB GB22843/38A patent/GB501717A/en not_active Expired
- 1937-08-27 GB GB16778/38A patent/GB501420A/en not_active Expired
- 1937-08-27 GB GB20844/38A patent/GB503384A/en not_active Expired
- 1937-09-17 GB GB16773/38A patent/GB502521A/en not_active Expired
- 1937-09-17 GB GB16774/38A patent/GB502522A/en not_active Expired
- 1937-12-29 US US182201A patent/US2215802A/en not_active Expired - Lifetime
- 1937-12-31 FR FR831558D patent/FR831558A/en not_active Expired
-
1938
- 1938-01-07 CH CH233476D patent/CH233476A/en unknown
- 1938-01-10 CH CH210431D patent/CH210431A/en unknown
Cited By (1)
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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