GB303844A - Improvements in machines for punching statistical record cards - Google Patents

Improvements in machines for punching statistical record cards

Info

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
Application number
GB2676227A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Accounting & Tabulating Mach
Original Assignee
Accounting & Tabulating Mach
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to US1790479D priority Critical patent/US1790479A/en
Priority to BE346023D priority patent/BE346023A/xx
Priority to DEA52102D priority patent/DE499762C/en
Application filed by Accounting & Tabulating Mach filed Critical Accounting & Tabulating Mach
Priority to GB2676227A priority patent/GB303844A/en
Publication of GB303844A publication Critical patent/GB303844A/en
Expired legal-status Critical Current

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.
GB2676227A 1927-10-04 1927-10-10 Improvements in machines for punching statistical record cards Expired GB303844A (en)

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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
US1790479A (en) 1931-01-27
BE346023A (en)

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