GB784561A - Type bar impact control - Google Patents
Type bar impact controlInfo
- Publication number
- GB784561A GB784561A GB29831/55A GB2983155A GB784561A GB 784561 A GB784561 A GB 784561A GB 29831/55 A GB29831/55 A GB 29831/55A GB 2983155 A GB2983155 A GB 2983155A GB 784561 A GB784561 A GB 784561A
- Authority
- GB
- United Kingdom
- Prior art keywords
- stops
- impression
- cylinder
- different
- shift
- 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)
- Manufacture Or Reproduction Of Printing Formes (AREA)
Abstract
784,561. Typewriters. INTERNATIONAL BUSINESS MACHINES CORPORATION Oct. 19, 1955 [Oct. 20, 1954], No. 29831/55. Class 100(4) in a typewriter having individually adjustable stops to engage the cam of each type bar, to vary its impression, actuation of the shift key brings a different set of stops into position for each case of the type bar whilst a separate key can bring other sets of stops into position for different typing conditions such as stencil cutting. The stops of the impression control mechanism 62 are individually adjustable as described in Specification 660,263 and each comprises a set screw mounted in slits 71 in spaced bosses 70 of a cylinder mounted on an eccentric part of a shaft 64. Separate rows of stops are provided for the upper and lower case positions and for different typing conditions and the impression of all the type bars derived from a particular row can be adjusted simultaneously by turning the eccentric part of the shaft 64 within the bore of the cylinder. Depression of the shift key acting through a lever 6, Fig. 3, moves the basket shift mechanism as described in Specification 655,492 and by a link 54 connected to the shift plate 30 moves a gear sector 58 which engages a gear 74 to turn the impression control cylinder 90 degrees to position the nex trow of stops in the operative position. Actuation of a button 106, Fig. 1, through arms 108 116, link 118 and yoke 120 will turn the cylinder 180 degrees so that two different rows of stops come under the control of the shift key when completely different typing conditions exist. The position of the stops is fixed after each movement by dentent mechanisms.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US463432A US2750022A (en) | 1954-10-20 | 1954-10-20 | Type bar impact control |
Publications (1)
Publication Number | Publication Date |
---|---|
GB784561A true GB784561A (en) | 1957-10-09 |
Family
ID=23840055
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB29831/55A Expired GB784561A (en) | 1954-10-20 | 1955-10-19 | Type bar impact control |
Country Status (3)
Country | Link |
---|---|
US (1) | US2750022A (en) |
DE (1) | DE1073006B (en) |
GB (1) | GB784561A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1192662B (en) * | 1960-07-11 | 1965-05-13 | Sperry Rand Corp | Device for adjusting the stop strength for types of typewriters and similar machines |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1070649B (en) * | 1956-04-14 | 1959-12-10 | Adlerwerke vorm. Heinrich Kleyer, Aktiengesellschaft, Frankfurt M | Device for regulating the stroke force of the types on power-driven typing, booking and similar machines |
CA620332A (en) * | 1957-05-29 | 1961-05-16 | Ascoli Enzo | Typewriters |
US2907436A (en) * | 1957-07-09 | 1959-10-06 | Royal Mcbee Corp | Impression control device |
DE1142881B (en) * | 1959-02-07 | 1963-01-31 | Grundig Max | Device for regulating the stroke strength of the types on power-driven typing, booking and similar machines |
US3239049A (en) * | 1962-06-27 | 1966-03-08 | Ibm | Impression control mechanism automatically selecting one of a plurality of cams |
NL120066C (en) * | 1962-09-08 | |||
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 |
FR1543787A (en) * | 1966-12-28 | Ibm | Device controlling the print quality of a 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 |
US3980169A (en) * | 1971-10-01 | 1976-09-14 | Triumph Werke Nurnberg A.G. | Impact control for single element printer |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1818200A (en) * | 1929-04-08 | 1931-08-11 | Electromatic Typewriters Inc | Typewriting machine |
US2344167A (en) * | 1941-12-26 | 1944-03-14 | Underwood Elliott Fisher Co | Typewriting machine |
FR964983A (en) * | 1947-06-05 | 1950-08-30 |
-
0
- DE DENDAT1073006D patent/DE1073006B/en active Pending
-
1954
- 1954-10-20 US US463432A patent/US2750022A/en not_active Expired - Lifetime
-
1955
- 1955-10-19 GB GB29831/55A patent/GB784561A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1192662B (en) * | 1960-07-11 | 1965-05-13 | Sperry Rand Corp | Device for adjusting the stop strength for types of typewriters and similar machines |
Also Published As
Publication number | Publication date |
---|---|
US2750022A (en) | 1956-06-12 |
DE1073006B (en) | 1960-01-14 |
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