GB303517A - Improvements in or relating to calculating machines - Google Patents

Improvements in or relating to calculating machines

Info

Publication number
GB303517A
GB303517A GB361/29A GB36129A GB303517A GB 303517 A GB303517 A GB 303517A GB 361/29 A GB361/29 A GB 361/29A GB 36129 A GB36129 A GB 36129A GB 303517 A GB303517 A GB 303517A
Authority
GB
United Kingdom
Prior art keywords
magnet
multiplier
contacts
multiplicand
contact
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
GB361/29A
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 GB303517A publication Critical patent/GB303517A/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)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Computing Systems (AREA)
  • Computational Mathematics (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)
  • Devices For Checking Fares Or Tickets At Control Points (AREA)
  • Credit Cards Or The Like (AREA)
  • Medicines Containing Plant Substances (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
GB361/29A 1928-01-05 1929-01-04 Improvements in or relating to calculating machines Expired GB303517A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US244594A US2178950A (en) 1928-01-05 1928-01-05 Multiplying machine

Publications (1)

Publication Number Publication Date
GB303517A true GB303517A (en) 1930-04-04

Family

ID=22923378

Family Applications (3)

Application Number Title Priority Date Filing Date
GB361/29A Expired GB303517A (en) 1928-01-05 1929-01-04 Improvements in or relating to calculating machines
GB2665/30A Expired GB327430A (en) 1928-01-05 1929-01-04 Improvements in or relating to calculating machines
GB2666/30A Expired GB327431A (en) 1928-01-05 1929-01-04 Improvements in or relating to calculating machines

Family Applications After (2)

Application Number Title Priority Date Filing Date
GB2665/30A Expired GB327430A (en) 1928-01-05 1929-01-04 Improvements in or relating to calculating machines
GB2666/30A Expired GB327431A (en) 1928-01-05 1929-01-04 Improvements in or relating to calculating machines

Country Status (5)

Country Link
US (1) US2178950A (enrdf_load_html_response)
DE (1) DE654052C (enrdf_load_html_response)
FR (1) FR668228A (enrdf_load_html_response)
GB (3) GB303517A (enrdf_load_html_response)
NL (2) NL37792C (enrdf_load_html_response)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB673926A (en) * 1947-10-14 1952-06-18 Duba Ab Improvements in electrically operated calculating machines
US2651458A (en) * 1951-01-24 1953-09-08 Eastman Kodak Co Automatic sequence-controlled computer
NL102606C (enrdf_load_html_response) * 1951-10-04
US3002689A (en) * 1958-03-31 1961-10-03 Burroughs Corp Multiplier accounting machine

Also Published As

Publication number Publication date
NL45220C (enrdf_load_html_response)
GB327431A (en) 1930-04-04
NL37792C (enrdf_load_html_response)
DE654052C (de) 1937-12-17
US2178950A (en) 1939-11-07
FR668228A (fr) 1929-10-29
GB327430A (en) 1930-04-04

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