GB983111A - Type action for hand-operated typewriters - Google Patents
Type action for hand-operated typewritersInfo
- Publication number
- GB983111A GB983111A GB41562/61A GB4156261A GB983111A GB 983111 A GB983111 A GB 983111A GB 41562/61 A GB41562/61 A GB 41562/61A GB 4156261 A GB4156261 A GB 4156261A GB 983111 A GB983111 A GB 983111A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pivot
- levers
- planes
- arms
- lever
- 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
- B41J7/00—Type-selecting or type-actuating mechanisms
- B41J7/02—Type-lever actuating mechanisms
Landscapes
- Mechanical Control Devices (AREA)
- Sewing Machines And Sewing (AREA)
- Printers Characterized By Their Purpose (AREA)
- General Details Of Gearings (AREA)
Abstract
983,111. Typewriters. ING. C. OLIVETTI & C. S.p.A. Nov. 21, 1961 [Nov. 26, 19601, No. 41562/61. Heading B6F. In a hand - operated typewriter wherein the keys 4 are depressible in vertical planes perpendicular to the front of the machine and the type levers 9 move in radial planes about a common planar semi-circular pivot 10, an upwardly-directed pivoted arm 18 associated with each key lever 5 and lying in the same vertical plane is connected by a link 27 to a second arm 26 on a pivot 20 common to all the arms 26, the arm 26 being connected to its type lever by a link 22. The arms 26 which lie in the radial planes of the type-lever movements form parts of levers 19 and together with the arms 18 increase in length from the centre of the machine towards the ends, the ratio between the lengths remaining constant. The links 27 lie substantially in the lines of intersection 12, Fig. 1, between the radial planes and the corresponding key-lever planes and are all of the same length. The lines 12 lie on the surface of an imaginary cylinder 28, Fig. 2. The pivot 20 which is mounted in the type-lever basket 11 is coaxial with and in a plane parallel to the plane of the pivot 10; the plane of the pivot 20 bisects the angle of movement of the arms 26. The inner arms 21 of the levers 19 are all identical. As shown, the key-levers 5 are in three sets mounted respectively on three horizontal pivots 6, 7, 8, and the arrangement described provides for uniform depression of of the keys. Moreover, the various levers are acted upon by forces lying in the planes of the levers. In one modification, Fig. 3 (not shown), the pivot 20 lies in the same plane as the pivot 10 and in another arrangement, Fig. 4 (not shown), the planes of the pivots 10, 20 approach the horizontal as is usual in a portable typewriter. The basket 11 is movable parallel to itself for ease shift.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2076760 | 1960-11-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB983111A true GB983111A (en) | 1965-02-10 |
Family
ID=11171760
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB41562/61A Expired GB983111A (en) | 1960-11-26 | 1961-11-21 | Type action for hand-operated typewriters |
Country Status (4)
Country | Link |
---|---|
US (1) | US3073428A (en) |
CH (1) | CH384597A (en) |
DE (2) | DE1883033U (en) |
GB (1) | GB983111A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE792939A (en) * | 1972-04-10 | 1973-04-16 | Rca Corp | |
JPS572511B2 (en) * | 1973-05-08 | 1982-01-16 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1194419A (en) * | 1916-08-15 | Tg machine | ||
US1673289A (en) * | 1924-03-07 | 1928-06-12 | Underwood Elliott Fisher Co | Typewriting machine |
-
1961
- 1961-11-20 CH CH1349461A patent/CH384597A/en unknown
- 1961-11-21 GB GB41562/61A patent/GB983111A/en not_active Expired
- 1961-11-22 US US154141A patent/US3073428A/en not_active Expired - Lifetime
- 1961-11-27 DE DEO6276U patent/DE1883033U/en not_active Expired
- 1961-11-27 DE DEO8399A patent/DE1144301B/en active Pending
Also Published As
Publication number | Publication date |
---|---|
CH384597A (en) | 1964-11-30 |
DE1883033U (en) | 1963-11-21 |
US3073428A (en) | 1963-01-15 |
DE1144301B (en) | 1963-02-28 |
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