SE307142B - - Google Patents
Info
- Publication number
- SE307142B SE307142B SE7792/64A SE779264A SE307142B SE 307142 B SE307142 B SE 307142B SE 7792/64 A SE7792/64 A SE 7792/64A SE 779264 A SE779264 A SE 779264A SE 307142 B SE307142 B SE 307142B
- Authority
- SE
- Sweden
- Prior art keywords
- pawl
- lever
- rack
- movement
- spacing
- Prior art date
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
- B41J19/34—Escapement-feed character-spacing mechanisms
- B41J19/58—Differential or variable-spacing arrangements
Landscapes
- Accessory Devices And Overall Control Thereof (AREA)
- Power-Operated Mechanisms For Wings (AREA)
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
1,060,756. Typewriters. INTERNATIONAL BUSINESS MACHINES CORPORATION. May 29, 1964 [June 26, 1963], No. 22276/64. Heading B6F. An escapement mechanism for a paper carriage or type carriage of a typewriter comprises an escapement rack 11 biased to move in characterspacing direction, an escapement pawl 22 movable longitudinally of the rack and also pivotally into and out of engagement with the rack, a spring 20 biasing the pawl for such movements, and stop means for limiting the longitudinal movement of the pawl 22 in both directions, the stop means being settable so that either normal character spacing may occur or a reduced spacing e.g. half the normal spacing may be introduced. The pawl 22 has a slot 18 engaging a pivot pin 19, and associated with the pawl is a pawl-actuating lever 25 having a slot 26 engaging the pin 19, and a half-space lever 27 pivoted on the pin. For normal spacing the parts are positioned as shown, Fig. 1, with the lever 25 held in its rightward position by the engagement of a lug 28 thereon with a surface 29 on the lever 27 against the action of a spring 31 attached to the lever 25. The lug 28 lies under the end 30 of the pawl 22. Stops 37, 36 are provided respectively on the pawl 22 and lever 25. Actuation of a space or character key causes anti-clockwise movement of lever 25 thus releasing pawl 22 from the rack 11 and allowing the pawl to move leftwards until stop 37 engages stop 36, and allowing the rack 11 to move rightwardly. The pawl 22 is then engaged with the next tooth of the rack by the action of springs 20, 31, and moves rightwardly with the rack 11 until the left-hand end of slot 18 engages pin 19 whereupon the rack 11 also is brought to rest. The slot 18, pin 19, and stops 36, 37 thus determine the normal spacing movement. For half spacing, a key 45 is depressed and, through a bell-crank lever 43 held in either of two positions by an over-centre spring 54, turns the lever 27 anticlockwise. A shoulder 58 on the lever engages a projection 59 on the pawl 22 to release the pawl and allow it to move leftwardly, the projection 59 moving beyond the shoulder 58. At the same time, the lever 25 and therefore the stop 36 moves leftwardly because the lug 28 is now engaging a cam surface 60 on the lever 27. The pawl 22 re-engages the next tooth of the rack, its leftward movement having been limited by the engagement of stops 36, 37. On the subsequent rightward movement of the pawl 22 with the rack 11, the projection 59 on the pawl engages a surface 62 on the shoulder 58 to stop further movement so that the carriage has moved a half space only. In this position with the key 45 depressed, operation of the space or character keys causes normal spacing to take place. If the key 45 is subsequently raised by the operator, another half-space movement is obtained. The key 45 can be restored to its normal raised position when carriage return, tabulation or margin release is initiated; by providing an extension 65 on the bell crank lever 43 which is pulled downwardly when the carriage return, &c., mechanism is operated.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US290777A US3232405A (en) | 1963-06-26 | 1963-06-26 | Typewriter escapement mechanism with spacing means |
Publications (1)
Publication Number | Publication Date |
---|---|
SE307142B true SE307142B (en) | 1968-12-23 |
Family
ID=23117515
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE7792/64A SE307142B (en) | 1963-06-26 | 1964-06-26 |
Country Status (10)
Country | Link |
---|---|
US (1) | US3232405A (en) |
AT (1) | AT260960B (en) |
CH (1) | CH410025A (en) |
DE (1) | DE1293168B (en) |
DK (1) | DK118254B (en) |
ES (1) | ES301401A1 (en) |
FI (1) | FI43600B (en) |
GB (1) | GB1060756A (en) |
NO (1) | NO116038B (en) |
SE (1) | SE307142B (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1274139B (en) * | 1964-11-17 | 1968-08-01 | Olympia Werke Ag | Lock script control device for an interchangeable latch switch lock |
FR1475538A (en) * | 1965-04-23 | 1967-03-31 | Olympia Werke Ag | Exhaust block for stepper control mechanism of the carriage of a typewriter |
BE710078A (en) * | 1967-02-06 | 1968-05-30 | ||
DE1278452B (en) * | 1967-05-26 | 1968-09-26 | Olympia Werke Ag | Rack indexing device with half-step device for typing, booking or similar machines |
US3519115A (en) * | 1967-09-11 | 1970-07-07 | Singer Co | Escapement mechanism responsive to the return portion of a reciprocal rotary motion |
DE1965752B2 (en) * | 1969-12-31 | 1972-01-13 | Triumph Werke Nürnberg AG, 8500 Nürnberg | CARRIAGE CONTROLLER FOR WRITING OR SIMILAR MACHINERY |
GB1554415A (en) * | 1975-10-15 | 1979-10-17 | Xerox Corp | Word underscore(enhanced underscoring methods and means for automatic typewriter and the like employing hammertype impact printing mechanism) |
AU530568B2 (en) * | 1980-10-31 | 1983-07-21 | Canon Kabushiki Kaisha | Serial printing apparatus with memory and display |
US4408918A (en) * | 1981-05-01 | 1983-10-11 | Scm Corporation | Halfspace control system for electronic typewriter with correction register |
US7468161B2 (en) | 2002-04-15 | 2008-12-23 | Ventana Medical Systems, Inc. | Automated high volume slide processing system |
US8883509B2 (en) | 2007-07-10 | 2014-11-11 | Ventana Medical Systems, Inc. | Apparatus and method for biological sample processing |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US505521A (en) * | 1893-09-26 | hamilton | ||
US589387A (en) * | 1897-08-31 | gilbert | ||
US1100669A (en) * | 1912-08-09 | 1914-06-16 | Underwood Typewriter Co | Type-writing machine. |
US1151493A (en) * | 1915-04-16 | 1915-08-24 | Sylvanus M Mann | Type-writing machine. |
US1867155A (en) * | 1929-08-05 | 1932-07-12 | Huston | Variable spacing mechanism for typewriters |
US1950761A (en) * | 1931-08-10 | 1934-03-13 | Electromatic Typewriters Inc | Typewriting machine |
US1941018A (en) * | 1932-08-08 | 1933-12-26 | Wilfred J Long | Variable spacer attachment for typewriters |
US2065629A (en) * | 1934-07-23 | 1936-12-29 | Underwood Elliott Fisher Co | Typewriting machine |
US2208806A (en) * | 1936-08-21 | 1940-07-23 | Remington Rand Inc | Typewriting and like machine |
US2237770A (en) * | 1938-07-28 | 1941-04-08 | Remington Rand Inc | Typewriting and like machines |
FR964983A (en) * | 1947-06-05 | 1950-08-30 | ||
BE488101A (en) * | 1948-04-13 | |||
US2645324A (en) * | 1950-09-26 | 1953-07-14 | Allen Business Mach | Adjustable escapement mechanism for typewriters |
DE971657C (en) * | 1951-09-30 | 1959-03-12 | Olympia Werke Ag | Device for writing ligatures on typewriters |
US2862593A (en) * | 1952-05-08 | 1958-12-02 | Ibm | Denominational tabulating mechanism |
BE529316A (en) * | 1953-06-04 | |||
DE1062733B (en) * | 1953-10-30 | 1959-08-06 | Siemens Ag | Device for setting relative shifts between the writing pad and type carrier of a teleprinter in the line direction |
US2872015A (en) * | 1954-12-29 | 1959-02-03 | Under Wood Corp | Stepwise carriage positioning mechanism and related features |
DE1113700B (en) * | 1955-07-23 | 1961-09-14 | Olivetti & Co Spa | Stepping device on typewriters for the switching step adapted to the type width |
US2905303A (en) * | 1955-12-29 | 1959-09-22 | Ibm | Escapement pawl control |
US2818958A (en) * | 1955-12-29 | 1958-01-07 | Ibm | Escapement pawl control |
US2972401A (en) * | 1958-07-26 | 1961-02-21 | Olivetti & Co Spa | Variable spacing mechanism for typewriters |
-
1963
- 1963-06-26 US US290777A patent/US3232405A/en not_active Expired - Lifetime
-
1964
- 1964-05-29 GB GB22276/64A patent/GB1060756A/en not_active Expired
- 1964-06-18 CH CH799964A patent/CH410025A/en unknown
- 1964-06-18 AT AT523064A patent/AT260960B/en active
- 1964-06-19 DE DEI26053A patent/DE1293168B/en active Pending
- 1964-06-23 FI FI1358/64A patent/FI43600B/fi active
- 1964-06-25 DK DK319264AA patent/DK118254B/en unknown
- 1964-06-25 ES ES0301401A patent/ES301401A1/en not_active Expired
- 1964-06-25 NO NO155806A patent/NO116038B/no unknown
- 1964-06-26 SE SE7792/64A patent/SE307142B/xx unknown
Also Published As
Publication number | Publication date |
---|---|
AT260960B (en) | 1968-04-10 |
ES301401A1 (en) | 1965-01-16 |
GB1060756A (en) | 1967-03-08 |
US3232405A (en) | 1966-02-01 |
CH410025A (en) | 1966-03-31 |
NO116038B (en) | 1969-01-20 |
DE1293168B (en) | 1969-04-24 |
DK118254B (en) | 1970-07-27 |
FI43600B (en) | 1971-02-01 |
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