GB868756A - Improvements in or relating to calculating machines - Google Patents

Improvements in or relating to calculating machines

Info

Publication number
GB868756A
GB868756A GB2756357A GB2756357A GB868756A GB 868756 A GB868756 A GB 868756A GB 2756357 A GB2756357 A GB 2756357A GB 2756357 A GB2756357 A GB 2756357A GB 868756 A GB868756 A GB 868756A
Authority
GB
United Kingdom
Prior art keywords
digit
multiplier
keys
depressed
multiplicand
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
GB2756357A
Inventor
Norbert Kitz
Robert Milburn
Christopher Frederick Webb
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.)
Bell Punch Co Ltd
Original Assignee
Bell Punch 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 Bell Punch Co Ltd filed Critical Bell Punch Co Ltd
Publication of GB868756A publication Critical patent/GB868756A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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
    • G06F7/48—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using non-contact-making devices, e.g. tube, solid state device; using unspecified devices
    • G06F7/491—Computations with decimal numbers radix 12 or 20.
    • G06F7/498—Computations with decimal numbers radix 12 or 20. using counter-type accumulators
    • G06F7/4981—Adding; Subtracting
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06C—DIGITAL COMPUTERS IN WHICH ALL THE COMPUTATION IS EFFECTED MECHANICALLY
    • G06C7/00—Input mechanisms
    • G06C7/02—Keyboards
    • G06C7/06—Keyboards with one set of keys for each denomination
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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
    • G06F7/461—Adding; subtracting
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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
    • G06F7/48—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using non-contact-making devices, e.g. tube, solid state device; using unspecified devices
    • G06F7/491—Computations with decimal numbers radix 12 or 20.
    • G06F7/498—Computations with decimal numbers radix 12 or 20. using counter-type accumulators
    • G06F7/4983—Multiplying; Dividing
    • G06F7/4985—Multiplying; Dividing by successive additions or subtractions

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Computational Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Input From Keyboards Or The Like (AREA)
  • Adjustable Resistors (AREA)
  • Endoscopes (AREA)
  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
  • Particle Accelerators (AREA)
  • Measuring Volume Flow (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

868,756. Digital electric calculatingappar-atus. BELL PUNCH CO. Ltd. Sept. 2, 1957 [Sept. 6, 1956; Nov. 22, 1956; July 3, 1957], Nos. 27563/57, 27564/57 and 27565/57. Divided out of 868,753. Class 106 (1). A calculating machine which is basically that described in Specification 868,753, is provided additionally with means for effecting multiplication by a one-digit multiplier. Depression of a " multiplication " key closes contacts L 4 <SP>10</SP>, L 5 <SP>10</SP> and L 1 <SP>10</SP>, L 3 <SP>10</SP> to connect the lower contact of a pair of contacts G-G to the driving electrode L<SP>11</SP> and to close the output circuit of a tube L, and moves a member (not shown) to ensure that the machine motor is not started when the multiplicand keys are actuated, the member being disengaged on actuation of a multiplier digit key. A single order of multiplier digit keys is provided, and on actuation of a key thereof, the discharge in the counting tube L is caused to pass to a cathode corresponding to the nines complement of the digit of the depressed key. The required multiplicand keys are depressed and retained depressed manually or automatically. When the motor-driven brush F bridges the contacts E-E, the valve T 1 is rendered conductive and the valve T 2 is rendered non-conductive, and on completion of each accumulation cycle which adds the multiplicand once on to the accumulator, a circuit completed between the contacts G-G causes the tube L to step only one digit, further accumulation cycles taking place until the discharge in the tube L reaches the " 9 " electrode to produce an output which resets the trigger pair T 1 , T 2 , the depressed multiplier keys then being manually or automatically released. To effect multiplication by a multi-digit multiplier, the single-digit operation is repeated with appropriate denominational shifts of the multiplicand digits. Specifications 868,757, 868,758, 868,759, 868,760 and 868,761 also are referred to.
GB2756357A 1956-09-06 1956-09-06 Improvements in or relating to calculating machines Expired GB868756A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2738356A GB868753A (en) 1956-09-06 1956-09-06 Improvements in or relating to calculating machines
GB2110557 1957-07-03

Publications (1)

Publication Number Publication Date
GB868756A true GB868756A (en) 1961-05-25

Family

ID=26255143

Family Applications (4)

Application Number Title Priority Date Filing Date
GB2757557A Expired GB868760A (en) 1956-09-06 1956-09-06 Improvements in or relating to calculating machines
GB2738356A Expired GB868753A (en) 1956-09-06 1956-09-06 Improvements in or relating to calculating machines
GB2756357A Expired GB868756A (en) 1956-09-06 1956-09-06 Improvements in or relating to calculating machines
GB2757257A Expired GB868759A (en) 1956-09-06 1956-09-06 Improvements in or relating to calculating machines

Family Applications Before (2)

Application Number Title Priority Date Filing Date
GB2757557A Expired GB868760A (en) 1956-09-06 1956-09-06 Improvements in or relating to calculating machines
GB2738356A Expired GB868753A (en) 1956-09-06 1956-09-06 Improvements in or relating to calculating machines

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB2757257A Expired GB868759A (en) 1956-09-06 1956-09-06 Improvements in or relating to calculating machines

Country Status (4)

Country Link
BE (12) BE560573A (en)
DE (3) DE1157005B (en)
GB (4) GB868760A (en)
NL (11) NL220558A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL240341A (en) * 1958-06-19
US3063996A (en) * 1959-03-02 1962-11-13 Smith Kline French Lab Substituted piperidinylalkyl phenothiazines
US3225037A (en) * 1959-03-30 1965-12-21 Sterling Drug Inc 10-[(amino- and acylamino-1-piperidyl) lower-alkyl]-phenothiazines
FR1284547A (en) * 1960-11-15 1962-02-16 Mechanoelectronic calculator
DE102006037808B4 (en) 2006-08-11 2008-05-08 Siemens Ag Rocker switch means

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2176932A (en) * 1931-10-30 1939-10-24 Addressograph Multigraph Electrical calculating machine
DE747501C (en) * 1939-08-25 1944-12-21 Martin Hebel Dr Ing Circuit arrangement for electrical billing machines to accelerate the tapping of the keyed numerical values
DE732568C (en) * 1941-05-29 1943-03-06 Siemens Ag Steam power plant with an upstream engine connected to a high pressure steam network
GB601149A (en) * 1943-12-27 1948-04-28 Ncr Co Improvements in distributors for routeing electrical impulses
US2543899A (en) * 1945-09-21 1951-03-06 Ibm Keyboard

Also Published As

Publication number Publication date
NL220555A (en)
NL220561A (en)
NL220558A (en)
NL220551A (en)
GB868753A (en) 1961-05-25
BE560574A (en)
BE560564A (en)
DE1153197B (en) 1963-08-22
NL220553A (en)
BE560570A (en)
BE560569A (en)
GB868760A (en) 1961-05-25
DE1157005B (en) 1963-11-07
BE560566A (en)
BE560572A (en)
NL220556A (en)
BE560563A (en)
BE560567A (en)
NL220554A (en)
NL220552A (en)
BE560565A (en)
BE560568A (en)
BE560573A (en)
GB868759A (en) 1961-05-25
NL220562A (en)
DE1086921B (en) 1960-08-11
NL220560A (en)
NL220559A (en)
BE560571A (en)

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