GB516225A - Improvements in or relating to calculating machines - Google Patents

Improvements in or relating to calculating machines

Info

Publication number
GB516225A
GB516225A GB17084/38A GB1708438A GB516225A GB 516225 A GB516225 A GB 516225A GB 17084/38 A GB17084/38 A GB 17084/38A GB 1708438 A GB1708438 A GB 1708438A GB 516225 A GB516225 A GB 516225A
Authority
GB
United Kingdom
Prior art keywords
read
multiplicand
outs
disconnected
card
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
GB17084/38A
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 GB516225A publication Critical patent/GB516225A/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
    • G06F7/467—Multiplying; dividing by using preset multiples of the multiplicand or the divisor

Landscapes

  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computing Systems (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Computational Mathematics (AREA)
  • Conveying Record Carriers (AREA)
  • Testing Of Balance (AREA)
  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
GB17084/38A 1937-06-09 1938-06-08 Improvements in or relating to calculating machines Expired GB516225A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US147168A US2219737A (en) 1937-06-09 1937-06-09 Calculating machine

Publications (1)

Publication Number Publication Date
GB516225A true GB516225A (en) 1939-12-28

Family

ID=22520530

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17084/38A Expired GB516225A (en) 1937-06-09 1938-06-08 Improvements in or relating to calculating machines

Country Status (5)

Country Link
US (1) US2219737A (en:Method)
DE (1) DE723449C (en:Method)
FR (1) FR839013A (en:Method)
GB (1) GB516225A (en:Method)
NL (1) NL68395C (en:Method)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2616624A (en) * 1945-02-08 1952-11-04 Ibm Calculator
NL182041B (nl) * 1952-11-01 Japan Servo Borstelloze gelijkstroommotor.
DE1131037B (de) * 1956-08-16 1962-06-07 Standard Elektrik Lorenz Ag Multiplikationsanordnung
DE1141810B (de) * 1957-12-13 1962-12-27 Standard Elektrik Lorenz Ag Multiplikationsanordnung

Also Published As

Publication number Publication date
FR839013A (fr) 1939-03-22
US2219737A (en) 1940-10-29
NL68395C (en:Method)
DE723449C (de) 1942-08-25

Similar Documents

Publication Publication Date Title
GB673759A (en) Improvements in calculating apparatus
GB516225A (en) Improvements in or relating to calculating machines
US2192729A (en) Calculating machine
GB532109A (en) Improvements in or relating to calculating machines
GB558566A (en) Improvements in or relating to record-card controlled accounting machines
Eckert The computation of special perturbations by the punched card method
US2264622A (en) Record controlled multiplying machine
US2049719A (en) Perforated card reading and analyzing device
US2237150A (en) Dividing machine
US2126666A (en) Multiplying machine
US2116661A (en) Subtracting device
US2126615A (en) Accounting machine
US2131908A (en) Multiplying machine
US2451784A (en) Calculator mechanism
US2106477A (en) Accounting machine
US2638275A (en) Accumulator for use in statistical machines
US1952868A (en) Computing system
JPS54161243A (en) Commodity sales data processing system
US2036683A (en) Tabulating machine
US2165230A (en) Multiplying machine
US2620976A (en) Mechanism for converting pence amounts to sterling
GB546272A (en) Improvements in or relating to calculating, tabulating or statistical machines
US2310407A (en) Machine for checking quotient results
US2304442A (en) Relay commutator
GB405030A (en) Improvements in or relating to mutiplying machines