GB303062A - Improvements in or relating to calculating machines - Google Patents

Improvements in or relating to calculating machines

Info

Publication number
GB303062A
GB303062A GB38051/28A GB3805128A GB303062A GB 303062 A GB303062 A GB 303062A GB 38051/28 A GB38051/28 A GB 38051/28A GB 3805128 A GB3805128 A GB 3805128A GB 303062 A GB303062 A GB 303062A
Authority
GB
United Kingdom
Prior art keywords
commutator
keys
card
brushes
throw
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
GB38051/28A
Other languages
English (en)
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.)
British Tabulating Machine Co Ltd
Original Assignee
British Tabulating Machine Co Ltd
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
Application filed by British Tabulating Machine Co Ltd filed Critical British Tabulating Machine Co Ltd
Publication of GB303062A publication Critical patent/GB303062A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F7/38—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation
    • G06F7/46—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using electromechanical counter-type accumulators
    • G06F7/462—Multiplying; dividing
    • G06F7/465—Multiplying; dividing by partial product forming (with electric multiplication table)

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computational Mathematics (AREA)
  • Computing Systems (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Dc Machiner (AREA)
  • Motor Or Generator Current Collectors (AREA)
GB38051/28A 1927-12-27 1928-12-24 Improvements in or relating to calculating machines Expired GB303062A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US303062XA 1927-12-27 1927-12-27
US304599XA 1928-01-21 1928-01-21

Publications (1)

Publication Number Publication Date
GB303062A true GB303062A (en) 1930-03-24

Family

ID=26705886

Family Applications (2)

Application Number Title Priority Date Filing Date
GB38051/28A Expired GB303062A (en) 1927-12-27 1928-12-24 Improvements in or relating to calculating machines
GB1922/29A Expired GB304599A (en) 1927-12-27 1929-01-19 Improvements in or relating to calculating machines

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB1922/29A Expired GB304599A (en) 1927-12-27 1929-01-19 Improvements in or relating to calculating machines

Country Status (3)

Country Link
FR (1) FR666400A (forum.php)
GB (2) GB303062A (forum.php)
NL (1) NL36253C (forum.php)

Also Published As

Publication number Publication date
NL36253C (forum.php)
FR666400A (fr) 1929-10-01
GB304599A (en) 1930-04-22

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