GB925164A - Improvements in or relating to calculating machines - Google Patents

Improvements in or relating to calculating machines

Info

Publication number
GB925164A
GB925164A GB2340561A GB2340561A GB925164A GB 925164 A GB925164 A GB 925164A GB 2340561 A GB2340561 A GB 2340561A GB 2340561 A GB2340561 A GB 2340561A GB 925164 A GB925164 A GB 925164A
Authority
GB
United Kingdom
Prior art keywords
decimal
decimal point
display
depressed
operated
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
GB2340561A
Inventor
Norbert Kitz
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 GB925164A publication Critical patent/GB925164A/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
    • G06F7/4983—Multiplying; Dividing
    • G06F7/4985—Multiplying; Dividing by successive additions or subtractions
    • 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
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/04—Generating or distributing clock signals or signals derived directly therefrom
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/04—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions
    • G09G3/06—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions using controlled light sources
    • G09G3/10—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions using controlled light sources using gas tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Analysis (AREA)
  • Pure & Applied Mathematics (AREA)
  • Computational Mathematics (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Digital Computer Display Output (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Punching Or Piercing (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Input From Keyboards Or The Like (AREA)

Abstract

925,164. Decimal electric calculating apparatus. BELL PUNCH CO. Ltd. June 15, 1959, No. 23405/61. Divided out of 925,161. Class 106 (1). The display of the contents of a decimal register of a keyboardoperated calculating machine includes a counter-operated decimalpoint indicator, which as shown, comprises a 12-cathode counting tube DD with 11 neon indicators DL1-DL11 disposed intermediate 12 decimal-digit display tubes. Eleven keys DK1-DK11 are provided for entering the position of the decimal point (if none is operated the glow in DD rests on cathode O, no display, decimal point to right of entered digits), and when the calculator is set for multiplication the discharge in DD remains stationary as successive multiplier digit keys are depressed to shift the partial product up until a decimal point DKM key is depressed whereafter a Z pulse produced at each cycle steps the decimal point along with the partial product. The calculating machine is described fully in Specification 925,161.
GB2340561A 1958-06-19 1959-06-15 Improvements in or relating to calculating machines Expired GB925164A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1965658A GB925161A (en) 1958-06-19 1958-06-19 Improvements in or relating to calculating machines

Publications (1)

Publication Number Publication Date
GB925164A true GB925164A (en) 1963-05-01

Family

ID=10132982

Family Applications (3)

Application Number Title Priority Date Filing Date
GB850360A Expired GB925163A (en) 1958-06-19 1958-06-19 Improvements in or relating to calculating machines
GB1965658A Expired GB925161A (en) 1958-06-19 1958-06-19 Improvements in or relating to calculating machines
GB2340561A Expired GB925164A (en) 1958-06-19 1959-06-15 Improvements in or relating to calculating machines

Family Applications Before (2)

Application Number Title Priority Date Filing Date
GB850360A Expired GB925163A (en) 1958-06-19 1958-06-19 Improvements in or relating to calculating machines
GB1965658A Expired GB925161A (en) 1958-06-19 1958-06-19 Improvements in or relating to calculating machines

Country Status (8)

Country Link
BE (1) BE579813A (en)
CH (5) CH379807A (en)
DE (1) DE1287340B (en)
DK (3) DK109760C (en)
FR (1) FR1230745A (en)
GB (3) GB925163A (en)
NL (1) NL240341A (en)
SE (3) SE303891B (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR887732A (en) * 1940-01-20 1943-11-22
NL83274C (en) * 1944-12-27
NL220552A (en) * 1956-09-06

Also Published As

Publication number Publication date
CH377559A (en) 1964-05-15
DK109760C (en) 1968-06-24
CH381454A (en) 1964-08-31
DK115958B (en) 1969-11-24
NL240341A (en)
BE579813A (en) 1959-10-16
CH379807A (en) 1964-07-15
SE307600B (en) 1969-01-13
CH384254A (en) 1964-11-15
SE301734B (en) 1968-06-17
SE303891B (en) 1968-09-09
CH381279A (en) 1964-08-31
GB925161A (en) 1963-05-01
DK117866B (en) 1970-06-08
FR1230745A (en) 1960-09-19
GB925163A (en) 1963-05-01
DE1287340B (en) 1969-01-16

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