GB1346979A - Tabulating mechanism - Google Patents
Tabulating mechanismInfo
- Publication number
- GB1346979A GB1346979A GB5332572A GB5332572A GB1346979A GB 1346979 A GB1346979 A GB 1346979A GB 5332572 A GB5332572 A GB 5332572A GB 5332572 A GB5332572 A GB 5332572A GB 1346979 A GB1346979 A GB 1346979A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pawl
- pitch
- control
- rack
- indexing
- 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
- B41J21/00—Column, tabular or like printing arrangements; Means for centralising short lines
- B41J21/04—Mechanisms for setting or restoring tabulation stops
-
- 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
Abstract
1346979 Typewriters TRIUMPH WERKE NURNBERG AG 17 Nov 1972 [16 May 1972] 53325/72 Heading B6F Tabulation.-In a typewriter equipped for variable spacing by the provision of indexing racks (21, Figs. 1 and 2) of differing pitch a and b, the tab stops 15 are set at pitch a. To compensate for the difference in pitch between the tab stops and rack (21) of pitch b, a central stop 14 forming part of a pivoted trigger 12 carries out a rocking motion as a cam follower 17 on the trigger moves over the cam surface of a control rail 22, as shown in Fig. 4. The tabulating mechanism operates as follows:- When pawl control (5, Fig. 1) is rotated about pin (4), the indexing pawl (2) is disengaged from rack 21. A double arm detent lever (10) latches the pawl control (5) in the rotated position, and the pawl control is shifted up against the left hand end of hole (6) by means of a spring. The type carriage is then free to move until central stop 14 strikes a tab stop 15, so that the pawl control (5) moves and the right hand end of hole (6) engages pivot pin (4). Detent lever (10) therefore releases the pawl control (5) so that under the action of springs (23) and (3), the tooth (8) of indexing pawl (2) drops into rack (21). This completes the tabulating operation (Fig. 3) and the cam follower 17 is no longer in contact with control rail 22.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2223689A DE2223689C3 (en) | 1972-05-16 | 1972-05-16 | Tab device |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1346979A true GB1346979A (en) | 1974-02-13 |
Family
ID=5844949
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5332572A Expired GB1346979A (en) | 1972-05-16 | 1972-11-17 | Tabulating mechanism |
Country Status (8)
Country | Link |
---|---|
US (1) | US3858706A (en) |
JP (1) | JPS5228046B2 (en) |
DE (1) | DE2223689C3 (en) |
FR (1) | FR2185233A5 (en) |
GB (1) | GB1346979A (en) |
IT (1) | IT963658B (en) |
NL (1) | NL146434B (en) |
SE (1) | SE375942B (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2618875C3 (en) * | 1976-04-29 | 1984-02-16 | Adlerwerke Vorm. Heinrich Kleyer Ag, 6000 Frankfurt | Rider rail for a tabulator in typewriters |
US4348124A (en) * | 1980-06-27 | 1982-09-07 | International Business Machines Corporation | Tabulation rack with spring pin holding |
US4348123A (en) * | 1980-06-27 | 1982-09-07 | International Business Machines Corporation | Tabulation rack with spring pin holding |
JPS6212916U (en) * | 1985-07-05 | 1987-01-26 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1964748A (en) * | 1929-08-09 | 1934-07-03 | Coxhead Ralph C Corp | Tabulating mechanism for typewriting machines |
GB1049634A (en) * | 1963-01-17 | 1966-11-30 | Royal Mcbee Corp | Multi-uniform and variable pitch escapement mechanism for typewriters |
NL136051C (en) * | 1963-09-25 | |||
US3547245A (en) * | 1968-01-09 | 1970-12-15 | Ibm | Multiple pitch margin control |
US3540565A (en) * | 1968-01-09 | 1970-11-17 | Ibm | Universal tab member |
-
1972
- 1972-05-16 DE DE2223689A patent/DE2223689C3/en not_active Expired
- 1972-07-14 NL NL727209741A patent/NL146434B/en unknown
- 1972-08-01 SE SE7210000A patent/SE375942B/xx unknown
- 1972-08-02 IT IT27784/72A patent/IT963658B/en active
- 1972-09-21 JP JP47094148A patent/JPS5228046B2/ja not_active Expired
- 1972-10-19 FR FR7237122A patent/FR2185233A5/fr not_active Expired
- 1972-11-17 GB GB5332572A patent/GB1346979A/en not_active Expired
-
1973
- 1973-05-10 US US359129A patent/US3858706A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPS4926012A (en) | 1974-03-08 |
SE375942B (en) | 1975-05-05 |
IT963658B (en) | 1974-01-21 |
DE2223689B1 (en) | 1974-02-21 |
NL146434B (en) | 1975-07-15 |
DE2223689C3 (en) | 1974-09-12 |
NL7209741A (en) | 1973-11-20 |
FR2185233A5 (en) | 1973-12-28 |
US3858706A (en) | 1975-01-07 |
DE2223689A1 (en) | 1973-11-22 |
JPS5228046B2 (en) | 1977-07-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |