GB1199832A - Rack Escapement Mechanism for Typewriters, Accounting Machines or Like Machines - Google Patents
Rack Escapement Mechanism for Typewriters, Accounting Machines or Like MachinesInfo
- Publication number
- GB1199832A GB1199832A GB19866/68A GB1986668A GB1199832A GB 1199832 A GB1199832 A GB 1199832A GB 19866/68 A GB19866/68 A GB 19866/68A GB 1986668 A GB1986668 A GB 1986668A GB 1199832 A GB1199832 A GB 1199832A
- Authority
- GB
- United Kingdom
- Prior art keywords
- letter
- lug
- space
- pawl
- spacing
- 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
- B41J19/34—Escapement-feed character-spacing mechanisms
- B41J19/58—Differential or variable-spacing arrangements
-
- 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
- B41J19/40—Escapements having a single pawl or like detent
Landscapes
- Character Spaces And Line Spaces In Printers (AREA)
- Transmission Devices (AREA)
Abstract
1,199,832. Typewriters &c. OLYMPIA WERKE A.G. 26 April, 1968 [26 May, 1967], No. 19866/68. Heading B6F. A typewriter rack escapement mechanism is provided with a half-letter-spacing mechanism for an error correction space key, the half-letterspacing mechanism including a slidably and pivotally mounted pawl 7, the tooth 6 of which is in engagement with the teeth 24 of a spring biased paper carriage rack 23 and a release lever 19 pivotally mounted in a recess 17 of a spacer 3 and articulated by a link 20 to the space bar (not shown) forming the correction key in its depression position, in which a lug 21 on the release lever 19 abuts a lug 10 on the pawl 7, whereby the distance between lugs 10 and 21, when in their inoperative position, corresponds to half a letter space. When the space bar is released the carriage is enabled to move through a further half-letter space for completion of the letter-spacing escapement movement. To effect an error correction, e.g. by typing an additional letter between two consecutive letters in a word, the space bar is depressed and held in its depressed condition, thereby the lug 21 on the release lever 19 pivots the pawl 7 out of engagement with the rack 23 and a spring 9 causes the pawl 7 to be drawn to the right and into engagement with the following rack tooth. Meanwhile an inclined surface 22 on the lug 21 slides off a complementary surface 11 on the lug 10 to dispose the lug 21 in the path of the lug 10, which is displaced towards the lug 21 by the letter-spacing movement of the paper carriage which is thus arrested in the half-letter-spacing position. On release of the space bar the release pawl 19 is restored to its original position and the carriage thereafter moves a further half a letter space until the lug 12 on the pawl 7 abuts a stop surface 13 on the spacer 3 fast with the typewriter frame. Multiple-action keys.-The space-bar (not shown) is depressed (and held down for error correction) to effect half a letter spacing and then released to complete the full letter spacing.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEO12517A DE1278452B (en) | 1967-05-26 | 1967-05-26 | Rack indexing device with half-step device for typing, booking or similar machines |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1199832A true GB1199832A (en) | 1970-07-22 |
Family
ID=7352844
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB19866/68A Expired GB1199832A (en) | 1967-05-26 | 1968-04-26 | Rack Escapement Mechanism for Typewriters, Accounting Machines or Like Machines |
Country Status (8)
Country | Link |
---|---|
US (1) | US3515252A (en) |
JP (1) | JPS4826849B1 (en) |
CH (1) | CH469569A (en) |
DE (1) | DE1278452B (en) |
FR (1) | FR1577447A (en) |
GB (1) | GB1199832A (en) |
NL (1) | NL6804462A (en) |
SE (1) | SE331483B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5411147U (en) * | 1977-06-24 | 1979-01-24 | ||
US4408918A (en) * | 1981-05-01 | 1983-10-11 | Scm Corporation | Halfspace control system for electronic typewriter with correction register |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2536619A (en) * | 1948-03-26 | 1951-01-02 | Underwood Corp | Escapement mechanism for typewriting and like machines |
US2862595A (en) * | 1954-10-18 | 1958-12-02 | Underwood Corp | Proportional letter-feed mechanism for typewriters or the like |
US2955695A (en) * | 1958-10-27 | 1960-10-11 | Underwood Corp | Proportional letter-feeding and adjunct features |
US3232405A (en) * | 1963-06-26 | 1966-02-01 | Ibm | Typewriter escapement mechanism with spacing means |
FR1475538A (en) * | 1965-04-23 | 1967-03-31 | Olympia Werke Ag | Exhaust block for stepper control mechanism of the carriage of a typewriter |
DE1436700B2 (en) * | 1965-06-01 | 1971-05-06 | Olympia Werke Ag | PROPORTIONAL SHIFTING DEVICE FOR THE CARRIAGE OF A TYPEWRITER |
-
1967
- 1967-05-26 DE DEO12517A patent/DE1278452B/en active Pending
-
1968
- 1968-02-12 CH CH205068A patent/CH469569A/en unknown
- 1968-02-29 JP JP43012650A patent/JPS4826849B1/ja active Pending
- 1968-03-29 NL NL6804462A patent/NL6804462A/xx unknown
- 1968-04-26 GB GB19866/68A patent/GB1199832A/en not_active Expired
- 1968-05-20 SE SE06811/68A patent/SE331483B/xx unknown
- 1968-05-21 FR FR1577447D patent/FR1577447A/fr not_active Expired
- 1968-05-24 US US731874A patent/US3515252A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
NL6804462A (en) | 1968-11-27 |
JPS4826849B1 (en) | 1973-08-16 |
FR1577447A (en) | 1969-08-08 |
DE1278452B (en) | 1968-09-26 |
US3515252A (en) | 1970-06-02 |
SE331483B (en) | 1971-01-04 |
CH469569A (en) | 1969-03-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLNP | Patent lapsed through nonpayment of renewal fees |