GB499900A - Improvements in or relating to an electrical apparatus for the transmitter of printing telegraphs or like devices - Google Patents
Improvements in or relating to an electrical apparatus for the transmitter of printing telegraphs or like devicesInfo
- Publication number
- GB499900A GB499900A GB25220/37A GB2522037A GB499900A GB 499900 A GB499900 A GB 499900A GB 25220/37 A GB25220/37 A GB 25220/37A GB 2522037 A GB2522037 A GB 2522037A GB 499900 A GB499900 A GB 499900A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contact
- uchida
- magnets
- contacts
- transmitter
- 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
- 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
- H04L17/06—Contact operating means
Abstract
499,900. Type - printing telegraphy. UCHIDA, N., UCHIDA, T., and UCHIDA, N. Sept. 16, 1937, No. 25220. Convention date, Sept. 24, 1936. [Class 40 (iii)] A plurality of electromagnets M1 ... M6 are energized in selective combinations by keys Kl ... K5 each operating a single contact J ... J5 respectively. One pole of the operating battery V is connected to all the magnets and the other to all the contacts, and the other side of the contacts is connected to a selection of magnets over leads, each of which contains a unilateral conductor, preventing false operation through return circuits which would otherwise exist through the leads to the unoperated contacts. For example, contact J1 is connected to magnets M1, M4, M6 over leads P1, P2, P3 containing contact rectifiers p1, p2, p3 respectively. When a contact operates a single magnet, or vice versa, the appropriate rectifier, e.g. p1 and q1 may be omitted.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP499900X | 1936-09-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB499900A true GB499900A (en) | 1939-01-31 |
Family
ID=12846433
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB25220/37A Expired GB499900A (en) | 1936-09-24 | 1937-09-16 | Improvements in or relating to an electrical apparatus for the transmitter of printing telegraphs or like devices |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR827066A (en) |
GB (1) | GB499900A (en) |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2476066A (en) * | 1948-05-06 | 1949-07-12 | Sylvania Electric Prod | Crystal matrix |
US2481269A (en) * | 1946-12-26 | 1949-09-06 | Welch Thomas Ross | Control system for electric signs |
US2512639A (en) * | 1944-01-05 | 1950-06-27 | Int Standard Electric Corp | Control or signaling system |
US2519993A (en) * | 1946-09-03 | 1950-08-22 | Welch Thomas Ross | Apparatus for system of visual signal communication |
US2610243A (en) * | 1951-04-06 | 1952-09-09 | Monroe Calculating Machine | Keyboard operated translating circuit |
US2612551A (en) * | 1951-04-07 | 1952-09-30 | Edwards Company Inc | Paging system |
US2618338A (en) * | 1949-07-22 | 1952-11-18 | Technicolor Motion Picture | Apparatus for marking a control record |
US2620395A (en) * | 1947-06-30 | 1952-12-02 | Snijders Antonie | Code converter |
US2630562A (en) * | 1948-04-28 | 1953-03-03 | Johnson Eric Arthur | Data encoding system |
US2639415A (en) * | 1948-10-27 | 1953-05-19 | Bell Telephone Labor Inc | Indicator selecting and lock-in circuit |
US2662112A (en) * | 1952-04-16 | 1953-12-08 | Nathaniel G A Dorfman | Electronic code-typewritter system |
US2665336A (en) * | 1950-08-08 | 1954-01-05 | Joseph J Saykay | Electrical keyboard |
US2761894A (en) * | 1946-05-17 | 1956-09-04 | Bell Telephone Labor Inc | Telegraph switching system with message numbering |
US2839741A (en) * | 1956-02-24 | 1958-06-17 | Theodore W Hallerberg | Indicator lamp test circuit |
DE1060055B (en) * | 1957-11-15 | 1959-06-25 | Siemens Ag | Process for the production of the electrical connections of semiconductor arrangements |
US3296425A (en) * | 1961-10-02 | 1967-01-03 | Bell Punch Co Ltd | Portable decimal calculating machine including pulse operated counting devices |
-
1937
- 1937-09-16 GB GB25220/37A patent/GB499900A/en not_active Expired
- 1937-09-23 FR FR827066D patent/FR827066A/en not_active Expired
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2512639A (en) * | 1944-01-05 | 1950-06-27 | Int Standard Electric Corp | Control or signaling system |
US2761894A (en) * | 1946-05-17 | 1956-09-04 | Bell Telephone Labor Inc | Telegraph switching system with message numbering |
US2519993A (en) * | 1946-09-03 | 1950-08-22 | Welch Thomas Ross | Apparatus for system of visual signal communication |
US2481269A (en) * | 1946-12-26 | 1949-09-06 | Welch Thomas Ross | Control system for electric signs |
US2620395A (en) * | 1947-06-30 | 1952-12-02 | Snijders Antonie | Code converter |
US2630562A (en) * | 1948-04-28 | 1953-03-03 | Johnson Eric Arthur | Data encoding system |
US2476066A (en) * | 1948-05-06 | 1949-07-12 | Sylvania Electric Prod | Crystal matrix |
US2639415A (en) * | 1948-10-27 | 1953-05-19 | Bell Telephone Labor Inc | Indicator selecting and lock-in circuit |
US2618338A (en) * | 1949-07-22 | 1952-11-18 | Technicolor Motion Picture | Apparatus for marking a control record |
US2665336A (en) * | 1950-08-08 | 1954-01-05 | Joseph J Saykay | Electrical keyboard |
US2610243A (en) * | 1951-04-06 | 1952-09-09 | Monroe Calculating Machine | Keyboard operated translating circuit |
US2612551A (en) * | 1951-04-07 | 1952-09-30 | Edwards Company Inc | Paging system |
US2662112A (en) * | 1952-04-16 | 1953-12-08 | Nathaniel G A Dorfman | Electronic code-typewritter system |
US2839741A (en) * | 1956-02-24 | 1958-06-17 | Theodore W Hallerberg | Indicator lamp test circuit |
DE1060055B (en) * | 1957-11-15 | 1959-06-25 | Siemens Ag | Process for the production of the electrical connections of semiconductor arrangements |
US3296425A (en) * | 1961-10-02 | 1967-01-03 | Bell Punch Co Ltd | Portable decimal calculating machine including pulse operated counting devices |
Also Published As
Publication number | Publication date |
---|---|
FR827066A (en) | 1938-04-15 |
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