US1876296A - Calculating machine - Google Patents

Calculating machine Download PDF

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Publication number
US1876296A
US1876296A US346292A US34629229A US1876296A US 1876296 A US1876296 A US 1876296A US 346292 A US346292 A US 346292A US 34629229 A US34629229 A US 34629229A US 1876296 A US1876296 A US 1876296A
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US
United States
Prior art keywords
calculating machine
sheet
sheets
filed march
inventor
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 - Lifetime
Application number
US346292A
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English (en)
Inventor
Hofgaard Rolf
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.)
HOFGAARD REMINGTON CORP
HOFGAARD-REMINGTON Corp
Original Assignee
HOFGAARD REMINGTON CORP
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 HOFGAARD REMINGTON CORP filed Critical HOFGAARD REMINGTON CORP
Application granted granted Critical
Publication of US1876296A publication Critical patent/US1876296A/en
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Expired - Lifetime legal-status Critical Current

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    • 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
    • G06F7/40—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using contact-making devices, e.g. electromagnetic relay
    • G06F7/44—Multiplying; Dividing
    • G06F7/446—Multiplying; Dividing by partial product forming (with electric multiplication table)

Definitions

  • the present invention has for its object an electric calculating machine which is based on the general broad principle .of operation described and claimed in my copending U. S.
  • the electric culculating machine comprises two sets of 10 digit lines, said digit lines being adapted to be interconnected in 10 different group combinations through suitable contact units by the closing of contacts corresponding to the various numbers entering into the calculation, and each group combination again comprises 10 possible single combinations as between individual digit lines. Therefore, there are, as between individual digit lines .100 possible combinations between the two sets of each ten digit lines.
  • I elect to employ as in said applications sets of relays, the relaysof a given setcorresponding'in number to the digits of the numerical monetary or other system for which the machine is adapted to be used, i. e. in the ten-digit system of numbers, I employ ten relays in each set, each relay corresponding ,respectively to the digit values 1-0 inclusive; and respective relays each having contact means representing digit values 1-0 inclusive.
  • the machine also comprises registering elements, each of which is adapted to be operated by a currentpassing throu h a linein one of the afore-mentioned sets 0 digit lines.
  • the said registering elements in turn control contact members for closing said lines in the other set of digit lines.
  • the means for successively reglstering the effects of depressions of the keys consist in a ribbon or strip which is caused to be perforated by means of electrierforating members, said perforations actin to establish the contacts for closing the diglt line circuit upon the depression of the next key.
  • One object of the present invention is to provide an electric calculating machine of the t pe specified by means of which it is possible to perform all the four principal kinds of calculation, that is, addition, subtraction, multiplication and division, by means of one sin le set of digit keys, corresponding in numher to the digit system employed, i. e. in the present embodiment a series of 10 keys, with an appro riate number of control keys for setting t e machine for the calculation to be performed.
  • Another object of the present invention is to provide an electric calculating machine of the type specified, comprising the least possible amount of mechanical elements commensurate with the preferred manner of performance.
  • the machine according to the present invention, comprising principally a combination of multiple contact relays
US346292A 1928-03-13 1929-03-12 Calculating machine Expired - Lifetime US1876296A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1876296X 1928-03-13
NO314026X 1928-06-21

Publications (1)

Publication Number Publication Date
US1876296A true US1876296A (en) 1932-09-06

Family

ID=26316231

Family Applications (1)

Application Number Title Priority Date Filing Date
US346292A Expired - Lifetime US1876296A (en) 1928-03-13 1929-03-12 Calculating machine

Country Status (5)

Country Link
US (1) US1876296A (de)
BE (1) BE354275A (de)
DE (1) DE691263C (de)
FR (1) FR665679A (de)
GB (1) GB314026A (de)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE746267C (de) * 1936-07-08 1944-06-21 Hollerith Maschinen Ges M B H Divisionsmaschine
DE746167C (de) * 1937-06-28 1944-08-08 Deutsche Hollerith Maschinen Gmbh Rechenmaschine
DE747075C (de) * 1936-06-24 1944-09-27 Hollerith Maschinen Ges M B H Rechenmaschine fuer die vier Grundrechnungsarten
US2484462A (en) * 1944-05-25 1949-10-11 Gen Railway Signal Co Airway traffic control system
US2573581A (en) * 1949-08-12 1951-10-30 Ibm Storage unit
US2580303A (en) * 1949-06-25 1951-12-25 Ibm Storage device for record controlled computers
US2594960A (en) * 1946-12-31 1952-04-29 Teleregister Corp Electrical storage and signaling system
US2611538A (en) * 1942-07-27 1952-09-23 Int Standard Electric Corp Electrical calculating apparatus
US2651458A (en) * 1951-01-24 1953-09-08 Eastman Kodak Co Automatic sequence-controlled computer
US2873914A (en) * 1955-08-02 1959-02-17 Eldi Feinmechanik G M B H Electrical summing device
US2941716A (en) * 1960-06-21 Hebel
US2948464A (en) * 1954-06-11 1960-08-09 Hobart Mfg Co Computing mechanism
US2953297A (en) * 1960-09-20 Riss ctal
CN111240400A (zh) * 2020-01-20 2020-06-05 光子算数(北京)科技有限责任公司 光除法模块、光子神经网络芯片、芯片系统及光除法器

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE749095C (de) * 1942-03-21 1945-01-26 Elektrische Recheneinrichtung
US2350698A (en) * 1943-07-15 1944-06-06 Ibm Rounding off means for calculating machines
US2480744A (en) * 1948-02-19 1949-08-30 Ibm Accumulator of the step by step operated type

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2953297A (en) * 1960-09-20 Riss ctal
US2941716A (en) * 1960-06-21 Hebel
DE747075C (de) * 1936-06-24 1944-09-27 Hollerith Maschinen Ges M B H Rechenmaschine fuer die vier Grundrechnungsarten
DE746267C (de) * 1936-07-08 1944-06-21 Hollerith Maschinen Ges M B H Divisionsmaschine
DE746167C (de) * 1937-06-28 1944-08-08 Deutsche Hollerith Maschinen Gmbh Rechenmaschine
US2611538A (en) * 1942-07-27 1952-09-23 Int Standard Electric Corp Electrical calculating apparatus
US2484462A (en) * 1944-05-25 1949-10-11 Gen Railway Signal Co Airway traffic control system
US2594960A (en) * 1946-12-31 1952-04-29 Teleregister Corp Electrical storage and signaling system
US2580303A (en) * 1949-06-25 1951-12-25 Ibm Storage device for record controlled computers
US2573581A (en) * 1949-08-12 1951-10-30 Ibm Storage unit
US2651458A (en) * 1951-01-24 1953-09-08 Eastman Kodak Co Automatic sequence-controlled computer
US2948464A (en) * 1954-06-11 1960-08-09 Hobart Mfg Co Computing mechanism
US2873914A (en) * 1955-08-02 1959-02-17 Eldi Feinmechanik G M B H Electrical summing device
CN111240400A (zh) * 2020-01-20 2020-06-05 光子算数(北京)科技有限责任公司 光除法模块、光子神经网络芯片、芯片系统及光除法器
CN111240400B (zh) * 2020-01-20 2023-10-20 光子算数(北京)科技有限责任公司 光除法模块、光子神经网络芯片、芯片系统及光除法器

Also Published As

Publication number Publication date
FR665679A (fr) 1929-09-21
BE354275A (de)
DE691263C (de) 1941-01-29
GB314026A (en) 1930-09-19

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