GB989670A - Type carrier for high speed printing mechanism - Google Patents
Type carrier for high speed printing mechanismInfo
- Publication number
- GB989670A GB989670A GB31937/63A GB3193763A GB989670A GB 989670 A GB989670 A GB 989670A GB 31937/63 A GB31937/63 A GB 31937/63A GB 3193763 A GB3193763 A GB 3193763A GB 989670 A GB989670 A GB 989670A
- Authority
- GB
- United Kingdom
- Prior art keywords
- type
- character
- drum
- faces
- carrier
- 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
- 230000000295 complement effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
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
- B41J1/00—Typewriters or selective printing mechanisms characterised by the mounting, arrangement or disposition of the types or dies
- B41J1/22—Typewriters or selective printing mechanisms characterised by the mounting, arrangement or disposition of the types or dies with types or dies mounted on carriers rotatable for selection
- B41J1/32—Typewriters or selective printing mechanisms characterised by the mounting, arrangement or disposition of the types or dies with types or dies mounted on carriers rotatable for selection the plane of the type or die face being parallel to the axis of rotation, e.g. with type on the periphery of cylindrical carriers
Landscapes
- Impression-Transfer Materials And Handling Thereof (AREA)
- Printing Methods (AREA)
- Handling Of Sheets (AREA)
Abstract
989,670. Selective printers; irik-ribbon mechanism. SPERRY RAND CORPORATION. Aug. 13, 1963 [Aug. 21, 1962], No. 31937/63. Heading B6F. In a high speed printer a continuously rotating type carrier 10, Fig. 1, having a plurality of type faces 20, Fig. 5, the type faces are fashioned in such a manner that portions 46 or 47, Fig. 7, which are oriented parallel or diagonally to the carrier arms are thinner than portion 45 oriented perpendicularly to the axis of said carrier, whereby the extent of smear imprints 46s or 47s in the character image will cause the resultant parallel or diagonally oriented portions of the reproduced character image to be wider than the respective parallel or diagonally oriented portions of the corresponding type face 20 and more nearly uniform in width with the perpendicularly oriented portions of the said character image. Type - wheel machines; hammer - impression arrangements.-The high speed printer comprises a type carrier 10, Fig. 1, in the form of a drum keyed to a continuously rotating shaft 11 to present type faces 20, Fig. 5, into registration with type hammers 12. The type hammers are driven by electromagnetic actuators each of which includes a coil 21 and pivotally mounted armature 22, having one arm which engages the shank of the type hammer to cause it to move into a printing operation. Ink-ribbon mechanism.-A transfer web 15 which may include duplicating sheets, Fig. 1, is drawn around guide rollers 16 by any suitable feeding mechanism (not shown) and is maintained out of contact with the type drum 10, except at the printing station, by arcuate shields 17 mounted in close proximity to the drum's face on each side of the printing station. Types, discs and printing surfaces.-The character type faces 20, Fig. 5, are arranged about the periphery of the type drum 10 and a series of rows and columns with each column, which runs perpendicularly to the longitudinal axis of the drum containing a full complement of alpha-numerical characters and special marks. The columns are arranged in alternately offset relationship in a checkerboard array so that identical characters occupy two adjacent rows extending in a direction parallel to the drum axis. Associated with each row of characters is a raised bar-like structure 23 formed on the drum surface used for registration of each row of type faces with the type hammer spring time control means. To compensate for the smearing effect of the printed image of a type character which extends parallel to the direction of the type carrier rotation and which depends on the time of contact of the type character with the printing medium and also on the effective contact area of the type face of the character each character type face is so fashioned, e.g. the numeral 1 in Fig. 7, that the portions 46 or 47, which are orientated parallel or diagonally to the carrier longitudinal axis are thinner than the portion 45 orientated perpendicularly to the axis of the type carrier, to compensate for the amount of smearing and provide the perpendicularly orientated portions 45i of the printed character image with the same width or boldness as the resultant printed character image portions 46i . . . 46s, 47i . . . 47s, which are parallel or diagonally orientated. Since the amount of smear depends on the effective area of the type faces 20, Fig. 5, and to secure a uniform height of the characters the type faces such as " L " are slightly smaller than the type faces such as " M," which have a larger effective contact area. In addition, to align all character images with respect to the base of the printed line the characters are offset by a distance I from a reference line passing through the bar structures 23. The distance I is proportional to the effective contact area of the type faces 20. In another embodiment (not shown) the characters in a column may be spaced uniformly and the bar structures 23 spaced as determined by the requisite distances 1.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US218257A US3207067A (en) | 1962-08-21 | 1962-08-21 | Type carrier for high speed printing mechanism |
Publications (1)
Publication Number | Publication Date |
---|---|
GB989670A true GB989670A (en) | 1965-04-22 |
Family
ID=22814387
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB31937/63A Expired GB989670A (en) | 1962-08-21 | 1963-08-13 | Type carrier for high speed printing mechanism |
Country Status (6)
Country | Link |
---|---|
US (1) | US3207067A (en) |
BE (1) | BE636232A (en) |
CH (1) | CH414693A (en) |
DE (1) | DE1212324B (en) |
FR (1) | FR1374447A (en) |
GB (1) | GB989670A (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3283702A (en) * | 1964-04-20 | 1966-11-08 | Potter Instrument Co Inc | High speed printing and graph plotting machine |
US3282204A (en) * | 1964-05-15 | 1966-11-01 | Sperry Rand Corp | High speed printing device for printing characters of different physical sizes |
US3313390A (en) * | 1965-01-18 | 1967-04-11 | Anelex Corp | Printing machine incorporating spacedfont print roll, and method of printing |
US3322064A (en) * | 1966-06-02 | 1967-05-30 | Anelex Corp | Print drum type matrix and sequential line printing control |
US3739720A (en) * | 1970-10-06 | 1973-06-19 | Electronic Data Preparation Co | Method of selective high speed printing using letters with flared limbs and gaps to compensate for smearing |
US3869980A (en) * | 1973-08-10 | 1975-03-11 | Cordura Corp | High speed data processor line printer |
US4400106A (en) * | 1974-11-29 | 1983-08-23 | Patology Press, Ltd. | Typesetting apparatus |
US4102268A (en) * | 1975-06-30 | 1978-07-25 | Dataproducts Corporation | Impact printer type character |
JPS53106220A (en) * | 1977-02-28 | 1978-09-16 | Canon Kk | Printer |
JPS5725966A (en) * | 1980-07-23 | 1982-02-10 | Canon Inc | Type wheel |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH107223A (en) * | 1918-08-17 | 1924-10-01 | Machina Mij Voor Handel En Ind | Type set for the production of typewriter font reproduced from the printed font. |
US2248522A (en) * | 1939-04-18 | 1941-07-08 | Ivan W Conrad | Automatic telegraphy |
US2714352A (en) * | 1951-09-18 | 1955-08-02 | Stanley M Rookyard | Apparatus for preparing make-ready mats for curved plates |
US2776618A (en) * | 1953-06-11 | 1957-01-08 | Hughes Aircraft Co | Printing cylinders for high-speed printing systems |
US2894613A (en) * | 1956-01-19 | 1959-07-14 | Waldemar A Ayres | Even printing manual typewriter |
US2997632A (en) * | 1958-09-12 | 1961-08-22 | Jr Francis H Shepard | Hammer firing circuit for high speed printer |
US3034806A (en) * | 1958-11-19 | 1962-05-15 | Paul C Squires | Digit displays |
US3024723A (en) * | 1960-05-27 | 1962-03-13 | Potter Instrument Co Inc | Logical system for a high speed printer |
-
0
- BE BE636232D patent/BE636232A/xx unknown
-
1962
- 1962-08-21 US US218257A patent/US3207067A/en not_active Expired - Lifetime
-
1963
- 1963-08-13 GB GB31937/63A patent/GB989670A/en not_active Expired
- 1963-08-16 FR FR944876A patent/FR1374447A/en not_active Expired
- 1963-08-16 DE DES86768A patent/DE1212324B/en active Pending
- 1963-08-20 CH CH1025463A patent/CH414693A/en unknown
Also Published As
Publication number | Publication date |
---|---|
US3207067A (en) | 1965-09-21 |
FR1374447A (en) | 1964-10-09 |
BE636232A (en) | |
CH414693A (en) | 1966-06-15 |
DE1212324B (en) | 1966-03-10 |
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