GB1077522A - Improvements in or relating to a control system for the types of electric typewriters, data processing machines and the like - Google Patents
Improvements in or relating to a control system for the types of electric typewriters, data processing machines and the likeInfo
- Publication number
- GB1077522A GB1077522A GB7382/65A GB738265A GB1077522A GB 1077522 A GB1077522 A GB 1077522A GB 7382/65 A GB7382/65 A GB 7382/65A GB 738265 A GB738265 A GB 738265A GB 1077522 A GB1077522 A GB 1077522A
- Authority
- GB
- United Kingdom
- Prior art keywords
- type
- solenoid
- selecting
- selection
- catch
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J7/00—Type-selecting or type-actuating mechanisms
- B41J7/02—Type-lever actuating mechanisms
- B41J7/30—Preventing rebound or clash of levers or type members
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L13/00—Details of the apparatus or circuits covered by groups H04L15/00 or H04L17/00
- H04L13/16—Details of the apparatus or circuits covered by groups H04L15/00 or H04L17/00 of transmitters, e.g. code-bars, code-discs
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Magnetic Treatment Devices (AREA)
- Electronic Switches (AREA)
- Keying Circuit Devices (AREA)
- Accessory Devices And Overall Control Thereof (AREA)
Abstract
1,077,522. Typewriters etc. G. MANUS. Feb. 19, 1965 [Feb. 29, 1964], No. 7382/65. Heading B6F. [Also in Division G4] A type-bar is selected by closing the appropriate key switch to energize the associated type-bar-selecting solenoid, all the solenoids being connected to a common current-limiting device which can only provide sufficient current to actuate one type-selecting-solenoid at a time, and after the type selection a common striking mechanism is actuated to effect printing. Selection of type bars in too rapid a succession may be avoided by delaying the triggering of a monostable circuit which supplies the solenoidenergizing pulse, until a given interval has elapsed since the preceding type selection operation. Where selection of a type bar is controlled through a catch attracted by a type selecting solenoid, residual current in the solenoid may be sufficient to hold a catch which has rebounded into contact with the solenoid after a type selecting operation, and to prevent this, an RC circuit may be provided in series with the solenoid to effectively cancel the residual current and return the catch to its inoperative position.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO15221964 | 1964-02-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1077522A true GB1077522A (en) | 1967-08-02 |
Family
ID=19908924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7382/65A Expired GB1077522A (en) | 1964-02-29 | 1965-02-19 | Improvements in or relating to a control system for the types of electric typewriters, data processing machines and the like |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3289806A (en) |
| CH (1) | CH410998A (en) |
| DE (1) | DE1436681B2 (en) |
| GB (1) | GB1077522A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3436735A (en) * | 1966-09-01 | 1969-04-01 | Sperry Rand Corp | Keyboard operated repeat circuit for a data processing system's operator control unit |
| DE1665891B1 (en) * | 1967-03-07 | 1970-05-21 | Siemens Ag | Keyboard for issuing consecutive control commands |
| DE1761054B1 (en) * | 1968-03-28 | 1971-12-23 | Kienzle Apparate Gmbh | ELECTRIC CONTROL DEVICE FOR CHANGING THE TIME DISTANCE OF SUCCESSIVE MODEL LEVER STOPS |
| FR2055986A5 (en) * | 1969-08-14 | 1971-05-14 | Gloess Paul |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US920940A (en) * | 1907-06-04 | 1909-05-11 | Henry M Ferry | Machine for combining an adding-machine and type-writer. |
| US1374152A (en) * | 1909-11-29 | 1921-04-05 | Telegraph transmitter | |
| US1455112A (en) * | 1922-07-25 | 1923-05-15 | Addograph Co | Typewriting machine |
| US1678492A (en) * | 1926-12-02 | 1928-07-24 | John W Lambert | Electromagnetic attachment for key-controlled mechanisms |
| US1753991A (en) * | 1927-04-18 | 1930-04-08 | Leonard W Langford | Keyboard operator |
| US2869703A (en) * | 1953-06-08 | 1959-01-20 | Grundig Max | Type key blocking mechanism |
| US2942253A (en) * | 1956-11-19 | 1960-06-21 | Hupp Corp | Switching system control |
| US2891649A (en) * | 1957-05-13 | 1959-06-23 | Royal Mcbee Corp | Manual and/or electric typewriters |
| US3017978A (en) * | 1960-12-15 | 1962-01-23 | Royal Mcbee Corp | Fault sensing apparatus |
| NL276933A (en) * | 1961-04-10 | |||
| GB1037816A (en) * | 1962-09-28 | 1966-08-03 | Olivetti & Co Spa | Power operated typewriter |
-
1965
- 1965-02-18 US US433609A patent/US3289806A/en not_active Expired - Lifetime
- 1965-02-19 GB GB7382/65A patent/GB1077522A/en not_active Expired
- 1965-02-23 CH CH246965A patent/CH410998A/en unknown
- 1965-03-01 DE DE19651436681 patent/DE1436681B2/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US3289806A (en) | 1966-12-06 |
| DE1436681A1 (en) | 1969-03-13 |
| CH410998A (en) | 1966-04-15 |
| DE1436681B2 (en) | 1971-03-04 |
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