GB324248A - Improvements in machines for punching statistical record cards - Google Patents

Improvements in machines for punching statistical record cards

Info

Publication number
GB324248A
GB324248A GB382429A GB382429A GB324248A GB 324248 A GB324248 A GB 324248A GB 382429 A GB382429 A GB 382429A GB 382429 A GB382429 A GB 382429A GB 324248 A GB324248 A GB 324248A
Authority
GB
United Kingdom
Prior art keywords
carriage
pawl
column
selector
depressed
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
GB382429A
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 US186718A priority Critical patent/US1798610A/en
Application filed by Accounting & Tabulating Mach filed Critical Accounting & Tabulating Mach
Priority to GB382429A priority patent/GB324248A/en
Publication of GB324248A publication Critical patent/GB324248A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K1/00—Methods or arrangements for marking the record carrier in digital fashion
    • G06K1/02—Methods or arrangements for marking the record carrier in digital fashion by punching
    • G06K1/06—Manually-controlled devices

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

324,248. Marks, Sir G. C., (Accounting & Tabulating Machine Corporation). Feb. 5, 1929. Selective punching-machines. - In a machine for punching statistical cards in which a carriage supporting a column of setting elements is moved in steps, by an escapement mechanism, over successive columns of selector-bars, electromagnetic means is provided for back-spacing the carriage a single step and for concomitantly restoring to normal the selector-bar to which the carriage has been returned. The setting carriage normally is moved by a drum 34 and escapement 35 mounted on the carriage. A back-space pawl 48 and a selector restoring pawl 38 are mounted on a pin P and the pawl 38 is coupled by a link 40 to a roller 45 which, when depressed, engages and releases the latches 47 of each column in turn. A rack 50, mounted on pins and shaped slots 52, is moved by a link 54 and a band 63. If an incorrect setting has been made in a column a key 68 is depressed to energize a relay magnet 73 which closes a switch 90 to energize a magnet 65 and couples the band 63 to a rotating shaft 66. The rack 50 is pulled to the left to engage with the pawls and through the pawl 48 pulls back the carriage through a column space and through the pawl 38 lowers the roller 45 to release the latch. As the band 63 is depressed a nose of a lever 59 opens the switch 90.
GB382429A 1927-04-26 1929-02-05 Improvements in machines for punching statistical record cards Expired GB324248A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US186718A US1798610A (en) 1927-04-26 1927-04-26 Back-space and column-normalizing mechanism for card-perforating machines
GB382429A GB324248A (en) 1929-02-05 1929-02-05 Improvements in machines for punching statistical record cards

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB382429A GB324248A (en) 1929-02-05 1929-02-05 Improvements in machines for punching statistical record cards

Publications (1)

Publication Number Publication Date
GB324248A true GB324248A (en) 1930-01-23

Family

ID=9765611

Family Applications (1)

Application Number Title Priority Date Filing Date
GB382429A Expired GB324248A (en) 1927-04-26 1929-02-05 Improvements in machines for punching statistical record cards

Country Status (1)

Country Link
GB (1) GB324248A (en)

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