GB1216173A - Keyboard-operated typewriter - Google Patents
Keyboard-operated typewriterInfo
- Publication number
- GB1216173A GB1216173A GB3829/69A GB382969A GB1216173A GB 1216173 A GB1216173 A GB 1216173A GB 3829/69 A GB3829/69 A GB 3829/69A GB 382969 A GB382969 A GB 382969A GB 1216173 A GB1216173 A GB 1216173A
- Authority
- GB
- United Kingdom
- Prior art keywords
- key
- bar
- follower
- underscore
- character
- 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
- B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
- B41J29/26—Devices, non-fluid media or methods for cancelling, correcting errors, underscoring or ruling
-
- 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
- B41J25/00—Actions or mechanisms not otherwise provided for
- B41J25/20—Auxiliary type mechanisms for printing distinguishing marks, e.g. for accenting, using dead or half-dead key arrangements, for printing marks in telegraph printers to indicate that machine is receiving
Landscapes
- Common Mechanisms (AREA)
- Impression-Transfer Materials And Handling Thereof (AREA)
- Accessory Devices And Overall Control Thereof (AREA)
Abstract
1,216,173. Typewriters. INTERNATIONAL BUSINESS MACHINES CORP. 23 Jan., 1969 [14 Feb., 1968], No. 3829/69. Heading B6F. A typewriter includes a key 65 which when depressed acts, on subsequent depression of a character key 41, to effect printing of the selected character without an associated letter space movement, followed by automatic printing of a predetermined character such as underscore and a subsequent letter space movement. The typewriter comprises a single element printing head 11 actuated on depression of a character key 41 by a mechanism (not shown) acted on by lugs 43a during leftward motion of an interposer 43 under the impulse of a filter shaft 51. The printing head 11 is advanced in the letter space direction by an excapement mechanism through a linkage 55, a lever 57 and a torque bar 59. On depression of the key 65, the key is latched in place by a slot 73 engaging a frame 71 owing to a spring 79, a pin 81 thereby acting to depress a bar 87 into a position such that a step 91 thereof is in the path of a blade 53 of the filter shaft 51. On depression of the character key 41, rotation of the filter shaft is initiated through a bail 45. The selected character is impressed, and simultaneously the bar 87 is driven leftward to rotate a ratchet-wheel 97 and coupled cam 109 so that a follower 113 is urged to the right and the escapement linkage is broken by displacement of the lever 57 away from engagement with the bar 59 by engagement of an end 125 of the cam follower 113 with a portion 127 of the lever 57. The rotation of the cam 109 also acts to draw a follower 129 downwardly, a portion 141 thereof depressing a underscore interposer 63. A second cycle of the filter shaft 51 is thereby initiated, causing impression of an underscore. Simultaneously, the bar 87 is again impelled to the left to rotate the ratchet-wheel 97 and cam 109 further. The follower 113 is thereby drawn to the left by a spring 121, to reconnect the lever 57 with the bar 59 and permit the operation of the letterspacing escapement mechanism. The follower 129 returns to its inoperative position with the underscore interposer 63. The key 65 remains latched in its operative position for continuous underscoring until manually released. A ball interlock 20 is provided to prevent actuation of a second key before a printing and underscoring cycle is completed.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US70551268A | 1968-02-14 | 1968-02-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1216173A true GB1216173A (en) | 1970-12-16 |
Family
ID=24833808
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3829/69A Expired GB1216173A (en) | 1968-02-14 | 1969-01-23 | Keyboard-operated typewriter |
Country Status (10)
Country | Link |
---|---|
US (1) | US3509982A (en) |
JP (1) | JPS4917208B1 (en) |
BE (1) | BE725603A (en) |
CH (1) | CH480182A (en) |
DE (1) | DE1906830B2 (en) |
ES (1) | ES363443A1 (en) |
FR (1) | FR1600718A (en) |
GB (1) | GB1216173A (en) |
NL (1) | NL6901648A (en) |
SE (1) | SE341595B (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3630336A (en) * | 1970-04-15 | 1971-12-28 | Ibm | Proportional spacing printer incorporating word underscore control |
US3844397A (en) * | 1971-11-23 | 1974-10-29 | Redactron Corp | Automatic underlining in an automated typewriter system |
US3993179A (en) * | 1971-12-28 | 1976-11-23 | Realty & Industrial Corporation | Justifying, text writing composing machine |
US3945480A (en) * | 1971-12-28 | 1976-03-23 | Realty & Industrial Corporation | Justifying, text writing reproducing machine |
JPS5245453B2 (en) * | 1972-08-09 | 1977-11-16 | ||
JPS50112140U (en) * | 1974-01-19 | 1975-09-12 | ||
DE3827674A1 (en) * | 1988-08-16 | 1990-02-22 | Werkzeug Gmbh | Clamping device with a fixed and a movable clamping jaw |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1233741A (en) * | 1917-03-08 | 1917-07-17 | Fred Aiton | Underscoring attachment for type-writers. |
US1349107A (en) * | 1918-12-12 | 1920-08-10 | Ester M Sealy | Underscorer for typewriters |
US1480613A (en) * | 1920-02-27 | 1924-01-15 | Underwood Typewriter Co | Typewriting machine |
US1818078A (en) * | 1929-11-09 | 1931-08-11 | Roy H Manly | Underscoring apparatus for typewriters |
US2093581A (en) * | 1935-02-09 | 1937-09-21 | Ibm | Typewriting machine |
US2800213A (en) * | 1955-01-06 | 1957-07-23 | Ibm | Automatic underscoring mechanism |
US2919002A (en) * | 1957-04-19 | 1959-12-29 | Ibm | Selection mechanism for a single printing element typewriter |
DE1288096B (en) * | 1963-06-14 | 1969-01-30 | International Business Machines Corp., Armonk, N.Y. (V.St.A.) | Equipment on power-driven typewriters and similar machines for key-controllable, automatic printing of character strings |
-
1968
- 1968-02-14 US US705512A patent/US3509982A/en not_active Expired - Lifetime
- 1968-12-17 BE BE725603D patent/BE725603A/xx unknown
- 1968-12-20 FR FR1600718D patent/FR1600718A/fr not_active Expired
-
1969
- 1969-01-21 CH CH81469A patent/CH480182A/en not_active IP Right Cessation
- 1969-01-23 GB GB3829/69A patent/GB1216173A/en not_active Expired
- 1969-01-31 JP JP44006777A patent/JPS4917208B1/ja active Pending
- 1969-01-31 NL NL6901648A patent/NL6901648A/xx unknown
- 1969-02-08 ES ES363443A patent/ES363443A1/en not_active Expired
- 1969-02-12 SE SE1889/69A patent/SE341595B/xx unknown
- 1969-02-12 DE DE19691906830 patent/DE1906830B2/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
ES363443A1 (en) | 1970-12-16 |
DE1906830A1 (en) | 1970-04-30 |
DE1906830B2 (en) | 1972-03-02 |
US3509982A (en) | 1970-05-05 |
BE725603A (en) | 1969-05-29 |
JPS4917208B1 (en) | 1974-04-27 |
SE341595B (en) | 1972-01-10 |
FR1600718A (en) | 1970-07-27 |
CH480182A (en) | 1969-10-31 |
NL6901648A (en) | 1969-08-18 |
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