GB785841A - A multi-step escapement device for typewriters - Google Patents
A multi-step escapement device for typewritersInfo
- Publication number
- GB785841A GB785841A GB3564/55A GB356455A GB785841A GB 785841 A GB785841 A GB 785841A GB 3564/55 A GB3564/55 A GB 3564/55A GB 356455 A GB356455 A GB 356455A GB 785841 A GB785841 A GB 785841A
- Authority
- GB
- United Kingdom
- Prior art keywords
- drum
- typewriters
- operated
- levers
- pinion
- 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
- B41J19/00—Character- or line-spacing mechanisms
- B41J19/18—Character-spacing or back-spacing mechanisms; Carriage return or release devices therefor
- B41J19/20—Positive-feed character-spacing mechanisms
- B41J19/32—Differential or variable-spacing arrangements
Landscapes
- Accessory Devices And Overall Control Thereof (AREA)
- Transmission Devices (AREA)
- Character Spaces And Line Spaces In Printers (AREA)
Abstract
785,841. Typewriters. OLYMPIA WERKE AKT.-GES. Feb. 7, 1955, No. 3564/55. Class 100(4) A differential escapement mechanism for typewriters is operated by type-levers 41 engaging one. of four universal bars 34a (or 34b in case shift position) which are notched at 40 and at the other end 35 so that one of four levers 28 is operated. The operated lever 28, Fig. 6, which relates to the letter-spacing required, engages its tappets 31, to displace a ball 17 in an escapement drum 5 and operate an actuating pin 19 which has been previously displaced to withdraw into the drum 5 and thereby disengages it from a resilient stop 7. The drum 5, which is rotatable in one direction only, rotates until the newly displaced pin 19 engages the stop 7 and, by gearing 6, 12, 13 and rack 14, an appropriate movement of the typewriter carriage takes place. During a carriage return movement, pinion 6 is moved axially on shaft 4 by a control device 26 to disconnect a toothed clutch 21, between the pinion 6 and the drum 5.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEO2840A DE944315C (en) | 1955-02-07 | 1953-03-08 | Paper trolley switching device for typewriters with a switching step that can be changed according to the letter types of different widths |
FR1129431D FR1129431A (en) | 1955-02-07 | 1954-12-31 | Typewriter carriage control device comprising an adjustable escapement according to the different character widths |
GB3564/55A GB785841A (en) | 1955-02-07 | 1955-02-07 | A multi-step escapement device for typewriters |
US494848A US2794530A (en) | 1955-02-07 | 1955-03-17 | Variable escapement mechanism for typewriters |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3564/55A GB785841A (en) | 1955-02-07 | 1955-02-07 | A multi-step escapement device for typewriters |
Publications (1)
Publication Number | Publication Date |
---|---|
GB785841A true GB785841A (en) | 1957-11-06 |
Family
ID=9760720
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3564/55A Expired GB785841A (en) | 1955-02-07 | 1955-02-07 | A multi-step escapement device for typewriters |
Country Status (4)
Country | Link |
---|---|
US (1) | US2794530A (en) |
DE (1) | DE944315C (en) |
FR (1) | FR1129431A (en) |
GB (1) | GB785841A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2966981A (en) * | 1958-02-07 | 1961-01-03 | Khalil Seyed | Selecting mechanism for key operated machines |
US3018870A (en) * | 1959-08-18 | 1962-01-30 | Royal Mcbee Corp | Proportional spacing mechanism |
DE1257166B (en) * | 1963-04-03 | 1967-12-28 | Optima Bueromaschwerk | Paper trolley switching device for typewriters with a switching step that can be changed according to the different letter widths |
NL136051C (en) * | 1963-09-25 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE272231C (en) * | ||||
US1286186A (en) * | 1916-02-03 | 1918-11-26 | Underwood Typewriter Co | Variable escapement. |
US2439470A (en) * | 1944-11-14 | 1948-04-13 | Ibm | Variable spacing mechanism for typewriting machines |
-
1953
- 1953-03-08 DE DEO2840A patent/DE944315C/en not_active Expired
-
1954
- 1954-12-31 FR FR1129431D patent/FR1129431A/en not_active Expired
-
1955
- 1955-02-07 GB GB3564/55A patent/GB785841A/en not_active Expired
- 1955-03-17 US US494848A patent/US2794530A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
FR1129431A (en) | 1957-01-21 |
DE944315C (en) | 1956-06-14 |
US2794530A (en) | 1957-06-04 |
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