GB776930A - Line spacing mechanism for typewriting or like machines - Google Patents
Line spacing mechanism for typewriting or like machinesInfo
- Publication number
- GB776930A GB776930A GB17577/54A GB1757754A GB776930A GB 776930 A GB776930 A GB 776930A GB 17577/54 A GB17577/54 A GB 17577/54A GB 1757754 A GB1757754 A GB 1757754A GB 776930 A GB776930 A GB 776930A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cam
- line spacing
- follower
- bail
- spring
- 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
- B41J25/00—Actions or mechanisms not otherwise provided for
- B41J25/02—Key actions for specified purposes
- B41J25/14—Line spacing
Landscapes
- Handling Of Cut Paper (AREA)
- Character Spaces And Line Spaces In Printers (AREA)
Abstract
776,930. Typewriters. ROYAL McBEE CORPORATION. June 15, 1954 [Aug. 11, 1953], No. 17577/54. Addition to 749,411. Class 100(4) A line spacing mechanism can be operated for repeated line spacing by the movement of a cam follower into engagement with a constantly rotating cam. A ratchet wheeel 9 of a usual line spacing mechanism C is actuated by the nose 25 of an actuator pawl 21 pivoted at 28 to an arm 39 of a bail 30 mounted on a rod 31. A cam 39 constantly rotated by a motor 43 is normally out of line with the roller 37a of a follower 37 but on depression a key lever 58 acts through linkage to rock a lever 70 which through a spring 73 overcomes a restoring spring 54 to move the cam follower along a shaft 53 so that the follower roll 37a is moved into the path of the cam 39 as soon as a low region between the lobes 57 is reached. Each lobe 57 acts to depress the follower arm 51 and a link 33, a nose 35 of which engages a bail ledge 32, whatever the position of the carriage, to rock the bail 30 to effect a line spacing. A spring 38 restores the link 33 between each lobe and repeated line spacing occurs as long as the key lever 58 is held down and the cam follower is in the path of the cam.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US333799XA | 1953-08-11 | 1953-08-11 | |
US1108832XA | 1953-08-11 | 1953-08-11 | |
US776930XA | 1953-08-11 | 1953-08-11 | |
US373615A US2728438A (en) | 1953-08-11 | 1953-08-11 | Line spacing mechanism for typewriting or like machines |
Publications (1)
Publication Number | Publication Date |
---|---|
GB776930A true GB776930A (en) | 1957-06-12 |
Family
ID=27488110
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB17577/54A Expired GB776930A (en) | 1953-08-11 | 1954-06-15 | Line spacing mechanism for typewriting or like machines |
Country Status (2)
Country | Link |
---|---|
US (1) | US2728438A (en) |
GB (1) | GB776930A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE520250A (en) * | 1952-07-25 | |||
DE1049398B (en) * | 1956-04-17 | 1959-01-29 | ||
US2949886A (en) * | 1958-09-23 | 1960-08-23 | Ibm | Copyholder |
DE1142179B (en) * | 1959-03-26 | 1963-01-10 | Grundig Max | Key-operated device on electric typewriters and similar machines for line switching with and without car lift |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1469774A (en) * | 1923-10-09 | crawley | ||
US1283596A (en) * | 1917-05-18 | 1918-11-05 | Moon Hopkins Billing Mach Co | Platen-operating mechanism. |
US1944673A (en) * | 1928-01-23 | 1934-01-23 | Ibm | Paper feeding mechanism |
US2082098A (en) * | 1934-06-25 | 1937-06-01 | Ncr Co | Calculating machine |
-
1953
- 1953-08-11 US US373615A patent/US2728438A/en not_active Expired - Lifetime
-
1954
- 1954-06-15 GB GB17577/54A patent/GB776930A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2728438A (en) | 1955-12-27 |
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