GB552797A - Improvements in or relating to devices for operating the type bars of a typewriter - Google Patents
Improvements in or relating to devices for operating the type bars of a typewriterInfo
- Publication number
- GB552797A GB552797A GB2496/42A GB249642A GB552797A GB 552797 A GB552797 A GB 552797A GB 2496/42 A GB2496/42 A GB 2496/42A GB 249642 A GB249642 A GB 249642A GB 552797 A GB552797 A GB 552797A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lever
- arm
- disc
- type
- bell
- 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
Landscapes
- Handling Of Cut Paper (AREA)
Abstract
552,797. Typewriters. ZWRONICEK, F. Feb. 25, 1942, No. 2496. Convention date, March 8, 1941. [Class 100 (iv)] Relay type-lever actions.-The type-lever 2 is connected to a revoluble disc 21 on a pivoted arm 16 resting on a bell-crank 11 which engages, as by a shoulder 14 and roller 7, an arm 5 pivoted to the keylever 7 and formed with an incline 8 for co-operation with an abutment 9. On depression of the keylever ,the arm 5 rocks the bell-crank 11 and then moves out of engagement therewith, the arm 16 drops on to a stop 27, a circular part 24 of the disc engages a driving roller 4, the disc makes a partrevolution, and the type-lever is actuated. A spring 17 returns the bell-crank, and an incline 15 thereon raises the arm 16, thereby releasing the disc from the driving-roller, and permitting a spring 23 to return the type-lever and disc to normal position. On release of the key-lever, the roller rides along an incline 29 and then engages the shoulder 14. If the key-lever is held down, repeat action of the type-lever is prevented, since the arm 5 remains disengaged from the bell-crank.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE552797X | 1941-03-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB552797A true GB552797A (en) | 1943-04-23 |
Family
ID=6563527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2496/42A Expired GB552797A (en) | 1941-03-08 | 1942-02-25 | Improvements in or relating to devices for operating the type bars of a typewriter |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB552797A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2506444A (en) * | 1947-06-05 | 1950-05-02 | Ibm | Power mechanism for typewriting machines |
| DE969022C (en) * | 1951-12-17 | 1958-05-08 | Ibm Deutschland | Device on a key-controlled cam device for the power drive of a typewriter type lever |
| DE1056625B (en) * | 1956-02-02 | 1959-05-06 | Olympia Werke Ag | Type lever gear for motorized typewriter |
| US2976977A (en) * | 1959-05-14 | 1961-03-28 | Sperry Rand Corp | Power mechanism for noiseless typewriter |
-
1942
- 1942-02-25 GB GB2496/42A patent/GB552797A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2506444A (en) * | 1947-06-05 | 1950-05-02 | Ibm | Power mechanism for typewriting machines |
| DE969022C (en) * | 1951-12-17 | 1958-05-08 | Ibm Deutschland | Device on a key-controlled cam device for the power drive of a typewriter type lever |
| DE1056625B (en) * | 1956-02-02 | 1959-05-06 | Olympia Werke Ag | Type lever gear for motorized typewriter |
| US2976977A (en) * | 1959-05-14 | 1961-03-28 | Sperry Rand Corp | Power mechanism for noiseless typewriter |
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