GB303844A - Improvements in machines for punching statistical record cards - Google Patents
Improvements in machines for punching statistical record cardsInfo
- Publication number
- GB303844A GB303844A GB2676227A GB2676227A GB303844A GB 303844 A GB303844 A GB 303844A GB 2676227 A GB2676227 A GB 2676227A GB 2676227 A GB2676227 A GB 2676227A GB 303844 A GB303844 A GB 303844A
- Authority
- GB
- United Kingdom
- Prior art keywords
- typewriter
- switch
- circuits
- bar
- machines
- 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
Landscapes
- Time Recorders, Dirve Recorders, Access Control (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
303,844. Jackson, J. E. Evans-, (Accounting & Tabulating Machine Corporation). Oct, 10, 1927. Coupling machines for simultaneous operation; keyboard operators.-In a combined typewriting and punching machine for statistical cards, means is provided to establish or to interrupt an operative connection between the typewriter and the punch-selecting means, according to the position of the typewriter carriage. Actuation of typewriter keys 25, through a switch 21, normally closes a circuit through a solenoid 10 controlling one of a row of setting plungers 14 for gagging punches 16 when a die-plate 18 supporting the card is raised. The circuits are controlled by a stationary switch 24, common to all the solenoids, operated by a cambar 38 carried by the typewriter carriage. The bar may be provided with a number of faces carrying differently arranged projections and may be mounted to permit any face being brought into action. In operation, the bar 3S controls the switch 24, in accordance with the position of the typewriter carriage, to select the columns in which circuits for the solenoids become operative.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US1790479D US1790479A (en) | 1927-10-10 | Automatic selecting bab | |
BE346023D BE346023A (en) | 1927-10-10 | ||
DEA52102D DE499762C (en) | 1927-10-04 | 1927-10-04 | Connection of a card punching machine with a recording machine (typewriter, calculating machine, etc.) |
GB2676227A GB303844A (en) | 1927-10-10 | 1927-10-10 | Improvements in machines for punching statistical record cards |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2676227A GB303844A (en) | 1927-10-10 | 1927-10-10 | Improvements in machines for punching statistical record cards |
Publications (1)
Publication Number | Publication Date |
---|---|
GB303844A true GB303844A (en) | 1929-01-10 |
Family
ID=10248788
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2676227A Expired GB303844A (en) | 1927-10-04 | 1927-10-10 | Improvements in machines for punching statistical record cards |
Country Status (3)
Country | Link |
---|---|
US (1) | US1790479A (en) |
BE (1) | BE346023A (en) |
GB (1) | GB303844A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2566931A (en) * | 1948-11-23 | 1951-09-04 | Ibm | Record card punching machine |
US2784785A (en) * | 1951-10-10 | 1957-03-12 | Ibm | Typewriter controlled tape punch |
-
0
- US US1790479D patent/US1790479A/en not_active Expired - Lifetime
- BE BE346023D patent/BE346023A/xx unknown
-
1927
- 1927-10-10 GB GB2676227A patent/GB303844A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US1790479A (en) | 1931-01-27 |
BE346023A (en) |
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