GB1151158A - Typebar Typewriting Machine - Google Patents
Typebar Typewriting MachineInfo
- Publication number
- GB1151158A GB1151158A GB36883/67A GB3688367A GB1151158A GB 1151158 A GB1151158 A GB 1151158A GB 36883/67 A GB36883/67 A GB 36883/67A GB 3688367 A GB3688367 A GB 3688367A GB 1151158 A GB1151158 A GB 1151158A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cam
- lever
- pivoted
- typebar
- adjust
- 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
- B41J7/92—Impact adjustment; Means to give uniformity of impression
- B41J7/94—Character-by-character adjustment
Landscapes
- Impression-Transfer Materials And Handling Thereof (AREA)
- Printers Characterized By Their Purpose (AREA)
- Transmission Devices (AREA)
Abstract
1,151,158. Typewriters. INTERNATIONAL BUSINESS MACHINES CORP. 11 Aug., 1967 [15 Sept., 1966], No. 36883/67. Heading B6F. In a typebar typewriting machine wherein each typebar carries an upper case character and a lower ease character, means are provided to adjust the striking force of each typebar individually, and also to adjust simultaneously the striking forces of all the typebars, the simultaneous adjusting means comprising one striking- force controlling means operative when lower case printing is being carried out and another controlling means when upper-case printing is being effected. As shown, each type bar 11 with upper and lower case characters 13, 15 thereon, is pivoted at 17, and is connected by a link 21 to a lever 23 pivoted at 24 and carrying a pivoted cam member 25 having a toothed edge 27. Operation of a key causes the keylever to contact a lug 31 on a trip lever 33 pivoted on the lever 23, so that the lever 33 moves the cam 25 into engagement with a continuously-rotating resiliently-covered roller 29. Such engagement causes the typebar 11 to be rotated to effect printing and continues until a part 28 on the cam 25 strikes a knock-off finger 39, there being one finger 39 for each cam 25. The fingers 39 are mounted on a bar 35 and can be individually adjusted by screws 37 so as to vary the distances travelled by the cams 25 before they are disengaged from the roller 29, and thus to adjust the striking forces of the type bars 11. The bar 35 is pivoted at 41 and, when the machine is operating in lower case, rests on a cam 45 which can be rotated to adjust the bar position and therefore to adjust collectively the striking forces of the typebars. A second cam 43 is fixed to the spindle of cam 45, and the bar 35 carries a lever 47 which is aligned with the cam 43. When the machine is set for upper case printing, a link 51 is operated to rotate the lever 47 into a position where a part 53 thereof engages the cam 43 and raises the plate 35 from the cam 45 so that the plate is supported by the lever 47 resting on the cam 43. Rotation of the cam 43 now causes collective adjustment of the striking forces of the upper case characters. Since only a portion of the cams 43, 45 is employed for a range of settings, the cams may be rotated to bring other portions into use according to the media upon which typing is to be effected.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US579736A US3393786A (en) | 1966-09-15 | 1966-09-15 | Impression control apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1151158A true GB1151158A (en) | 1969-05-07 |
Family
ID=24318135
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB36883/67A Expired GB1151158A (en) | 1966-09-15 | 1967-08-11 | Typebar Typewriting Machine |
Country Status (8)
Country | Link |
---|---|
US (1) | US3393786A (en) |
BE (1) | BE701383A (en) |
CH (1) | CH452561A (en) |
DE (1) | DE1611446B2 (en) |
FR (1) | FR1538051A (en) |
GB (1) | GB1151158A (en) |
NL (1) | NL6712012A (en) |
SE (1) | SE329635B (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3633723A (en) * | 1969-02-24 | 1972-01-11 | Sperry Rand Corp | Power-operated typewriter |
DE2029332A1 (en) * | 1970-06-13 | 1971-12-16 | Olympia Werke Ag | Device for the individual adjustment of the stroke force of type levers in power-driven writing and similar office machines |
CH521856A (en) * | 1970-12-15 | 1972-04-30 | Paillard Sa | Device for individually adjusting the striking force of a typewriter |
US3860103A (en) * | 1973-02-28 | 1975-01-14 | Litton Business Systems Inc | Segment shift arrangement |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2796966A (en) * | 1953-09-08 | 1957-06-25 | Ibm | Type element driving mechanism |
DE1078143B (en) * | 1955-10-24 | 1960-03-24 | Adlerwerke Kleyer Ag H | Device for adjusting the stroke strength of the types in power-driven typewriters |
US3239049A (en) * | 1962-06-27 | 1966-03-08 | Ibm | Impression control mechanism automatically selecting one of a plurality of cams |
NL125511C (en) * | 1963-05-02 | |||
DE1256231B (en) * | 1963-08-07 | 1967-12-14 | Olympia Werke Ag | Device for type lever gear to regulate the impression strength in power-driven typewriters |
US3259223A (en) * | 1964-09-21 | 1966-07-05 | Ibm | Impression control apparatus employing two sets of stops |
-
1966
- 1966-09-15 US US579736A patent/US3393786A/en not_active Expired - Lifetime
-
1967
- 1967-07-14 BE BE701383D patent/BE701383A/xx unknown
- 1967-08-07 FR FR8636A patent/FR1538051A/en not_active Expired
- 1967-08-11 GB GB36883/67A patent/GB1151158A/en not_active Expired
- 1967-09-01 NL NL6712012A patent/NL6712012A/xx unknown
- 1967-09-07 CH CH1254967A patent/CH452561A/en unknown
- 1967-09-08 DE DE19671611446 patent/DE1611446B2/en not_active Ceased
- 1967-09-13 SE SE12628/67A patent/SE329635B/xx unknown
Also Published As
Publication number | Publication date |
---|---|
DE1611446A1 (en) | 1972-03-09 |
BE701383A (en) | 1967-12-18 |
DE1611446B2 (en) | 1973-04-19 |
SE329635B (en) | 1970-10-19 |
NL6712012A (en) | 1968-03-18 |
CH452561A (en) | 1968-03-15 |
FR1538051A (en) | 1968-08-30 |
US3393786A (en) | 1968-07-23 |
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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 |