GB843819A - Improvements in typewriter mechanisms - Google Patents
Improvements in typewriter mechanismsInfo
- Publication number
- GB843819A GB843819A GB39530/56A GB3953056A GB843819A GB 843819 A GB843819 A GB 843819A GB 39530/56 A GB39530/56 A GB 39530/56A GB 3953056 A GB3953056 A GB 3953056A GB 843819 A GB843819 A GB 843819A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hub
- carriage
- cam
- members
- governor
- 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
- B41J19/02—Character- or line-spacing mechanisms with retarding devices, e.g. brakes
Landscapes
- Character Spaces And Line Spaces In Printers (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
843,819. Typewriters &c. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 28, 1956 [Dec. 30, 1955], No. 39530/56. Class 100(4) In a decelerating mechanism for use with a typewriter having a travelling carriage, when a tape drum 20, Fig. 1, rotates to drive the carriage for tabulation a hub 10 is rotated through a member 26 and a one-way spring clutch 28, and with it a governor 2 through gears 4, 6. Tab check lever 30, Fig. 3, is set by being pulled to the left by a spring 56 acting through members 58, 60, 62, 38, 36 when released from a retainer 54 by tab lever 50. As cab check lever 30 is driven back to its original position during the last part of the carriage travel, a cam 58 is driven anti-clockwise about a shaft 8 through the members 36, 38, 62, 60. The cam 58, Fig. 1, is mounted on a hub 64 which is connected via a one-way spring clutch 66 to the hub 10 which drives the governor 2 as previously described, thus decelerating the carriage. At the end of a carriage return movement, a bell crank 78, Fig. 4, is rocked anti-clockwise by a slide 72 pushed by a stop 70. A cam 100 is rotated anti-clockwise through members 98, 96, 86, and a lever 84 depressed by an ear 82. The cam 100, Fig. 1, rotates a hub 102 which rotates a hub 16 via a one-way spring clutch. The hub 16 drives the governor 2 via members 14, 10, 6 and 4. The decelerating force for carriage return is adjustable by altering the relative positions of levers 88, 86 by turning a screw 92.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US556630A US2854124A (en) | 1955-12-30 | 1955-12-30 | Typewriter carriage decelerator |
Publications (1)
Publication Number | Publication Date |
---|---|
GB843819A true GB843819A (en) | 1960-08-10 |
Family
ID=24222166
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB39530/56A Expired GB843819A (en) | 1955-12-30 | 1956-12-28 | Improvements in typewriter mechanisms |
Country Status (3)
Country | Link |
---|---|
US (1) | US2854124A (en) |
DE (1) | DE1029836B (en) |
GB (1) | GB843819A (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3048255A (en) * | 1959-06-03 | 1962-08-07 | Sperry Rand Corp | Means for cushioning carriage return and tabulation |
GB1053187A (en) * | 1963-09-25 | |||
US3288260A (en) * | 1963-12-12 | 1966-11-29 | Olivetti Underwood Corp | Carriage speed governing means for typewriters |
US3389774A (en) * | 1965-10-05 | 1968-06-25 | Scm Corp | Typewriter carriage control |
US3381791A (en) * | 1965-10-05 | 1968-05-07 | Scm Corp | Typewriter carriage control |
US3444976A (en) * | 1967-10-10 | 1969-05-20 | Scm Corp | Typewriter carriage decelerator |
US3595360A (en) * | 1969-11-17 | 1971-07-27 | Scm Corp | Carriage decelerator for tabulation and carriage return operation |
JPS5311883B2 (en) * | 1973-05-14 | 1978-04-25 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2209512A (en) * | 1940-07-30 | Pbinting tabulator | ||
US871280A (en) * | 1905-06-24 | 1907-11-19 | Parker Machine Company | Carriage escapement mechanism. |
US1516695A (en) * | 1924-07-07 | 1924-11-25 | Atkinson Sydney | Sectional motor radiator |
-
1955
- 1955-12-30 US US556630A patent/US2854124A/en not_active Expired - Lifetime
-
1956
- 1956-12-21 DE DEI12605A patent/DE1029836B/en active Pending
- 1956-12-28 GB GB39530/56A patent/GB843819A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE1029836B (en) | 1958-05-14 |
US2854124A (en) | 1958-09-30 |
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