US2878463A - Magnetic data storage devices - Google Patents

Magnetic data storage devices Download PDF

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Publication number
US2878463A
US2878463A US573283A US57328356A US2878463A US 2878463 A US2878463 A US 2878463A US 573283 A US573283 A US 573283A US 57328356 A US57328356 A US 57328356A US 2878463 A US2878463 A US 2878463A
Authority
US
United States
Prior art keywords
cores
magnetic
series
data storage
storage devices
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
US573283A
Other languages
English (en)
Inventor
Herman E Austen
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.)
NCR Voyix Corp
National Cash Register Co
Original Assignee
NCR 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
Priority to NL215595D priority Critical patent/NL215595A/xx
Priority to NL112668D priority patent/NL112668C/xx
Priority to DENDAT1073652D priority patent/DE1073652B/de
Priority to US573283A priority patent/US2878463A/en
Application filed by NCR Corp filed Critical NCR Corp
Priority to CH345920D priority patent/CH345920A/fr
Priority to FR1179285D priority patent/FR1179285A/fr
Priority to GB9259/57A priority patent/GB801340A/en
Priority to US672277A priority patent/US2877540A/en
Application granted granted Critical
Publication of US2878463A publication Critical patent/US2878463A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F10/00—Thin magnetic films, e.g. of one-domain structure
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D3/00—Electroplating: Baths therefor
    • C25D3/02—Electroplating: Baths therefor from solutions
    • C25D3/56—Electroplating: Baths therefor from solutions of alloys
    • C25D3/562—Electroplating: Baths therefor from solutions of alloys containing more than 50% by weight of iron or nickel or cobalt
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49069—Data storage inductor or core
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4998—Combined manufacture including applying or shaping of fluent material
    • Y10T29/49982—Coating

Definitions

  • This invention relates to magnetic core storage and switching devices, suitable for use in magnetic core matrices of electronic calculating machines.
  • the devices consist of a number of closed magnetic cores supported on a self-supporting rigid non-magnetic structure, which holds them in position for easy insertion of electrical conductors by which data may be selectively entered into the device or read therefrom.
  • a plurality of the devices may be formed into a coordinate matrix.
  • the rigid support for the cores preferably is an electrical conductor, and the supported cores may be arranged thereon in rows and columns to form a coordinate matrix.
  • Such electrically conductive continuous rigid support may act as one of the electrical conductors in the matrix system by reason of its passing through each core.
  • Figs. 1, 2 and 3 show successive steps in one form of making the device
  • Fig. 4 shows a complete coordinate matrix system of two rows of the novel device.
  • an inner support consisting of a hollow tube of non-magnetic material, having closely fitted or electro-plated thereover a magnetic covering 11.
  • the tube 10 should be of material which is rigid but which can be bent to a shape which it will retain, and, preferably of electrically conductive material, such as brass or copper.
  • the magnetic covering next is subjected to an operation which gives it the form of Fig. 2, as by grinding or cutting circumferential grooves at spaced intervals in the magnetic covering material until the outer surface of the support tube 10 is exposed.
  • the tube 10 is cut crosswise, at the groove intervals, the cuts being made so that the tube is held together so as to leave bridges such as 12. and 12'.
  • the adjoining cuts are from diametrically opposite sides, leaving magnetic ring cores as individual units 13, 13'.
  • the cores in a row are alternately oriented at substantially right angles. This is done in the present invention by bending the bridges 12, 12, as shown in Fig. 4.
  • Fig. 4 there is shown a coordinate matrix of two rows, with five magnetic cores in each row, the matrix being shown with but few cores for the sake of simplicity. There may be as many rows and as many cores in a row as desired.
  • continuous supporting material 10 is an electrical conductor
  • adjacent rows are electrically connected, as by portion 16 of the conductor.
  • the connector portion 16 may be of sufiicient stifiness to hold the two rows of cores in proper alinement while the electrical conductors like 14 and 15 are passed therethrough.
  • the supporting tube 10 may be covered by magnetic material as by slipping over it a closely fitted tube of magnetic material, the most eflicient method of covering the support is by electro-plating magnetic material thereover.
  • tubular support into the connected rings and then to magnetically plate them.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Chemically Coating (AREA)
US573283A 1956-03-22 1956-03-22 Magnetic data storage devices Expired - Lifetime US2878463A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
NL215595D NL215595A (ar) 1956-03-22
NL112668D NL112668C (ar) 1956-03-22
DENDAT1073652D DE1073652B (de) 1956-03-22 Magnetkernanordnung für eine magnetische Speichereinrichtung, insbesondere für elektronische Rechenmaschinen
US573283A US2878463A (en) 1956-03-22 1956-03-22 Magnetic data storage devices
CH345920D CH345920A (fr) 1956-03-22 1957-03-04 Matrice d'enregistrement de données
FR1179285D FR1179285A (fr) 1956-03-22 1957-03-19 Matrice d'enregistrement de données
GB9259/57A GB801340A (en) 1956-03-22 1957-03-21 Magnetic core data storage device
US672277A US2877540A (en) 1956-03-22 1957-07-16 Method of making magnetic data storage devices

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US573283A US2878463A (en) 1956-03-22 1956-03-22 Magnetic data storage devices
US672277A US2877540A (en) 1956-03-22 1957-07-16 Method of making magnetic data storage devices

Publications (1)

Publication Number Publication Date
US2878463A true US2878463A (en) 1959-03-17

Family

ID=27076067

Family Applications (2)

Application Number Title Priority Date Filing Date
US573283A Expired - Lifetime US2878463A (en) 1956-03-22 1956-03-22 Magnetic data storage devices
US672277A Expired - Lifetime US2877540A (en) 1956-03-22 1957-07-16 Method of making magnetic data storage devices

Family Applications After (1)

Application Number Title Priority Date Filing Date
US672277A Expired - Lifetime US2877540A (en) 1956-03-22 1957-07-16 Method of making magnetic data storage devices

Country Status (6)

Country Link
US (2) US2878463A (ar)
CH (1) CH345920A (ar)
DE (1) DE1073652B (ar)
FR (1) FR1179285A (ar)
GB (1) GB801340A (ar)
NL (2) NL112668C (ar)

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3005977A (en) * 1955-09-13 1961-10-24 Burroughs Corp Bistable state magnetic elements and coupled circuitry
US3012231A (en) * 1956-10-10 1961-12-05 Honeywell Regulator Co Electrical apparatus for storing digital information
US3052873A (en) * 1958-09-18 1962-09-04 Bell Telephone Labor Inc Magnetic memory circuits
US3060410A (en) * 1957-10-11 1962-10-23 Ford Motor Co Logic system gating circuit
US3070782A (en) * 1958-11-25 1962-12-25 Ibm Memory array
US3093818A (en) * 1956-10-08 1963-06-11 Ibm Domain rotational memory system
US3111651A (en) * 1957-10-10 1963-11-19 Bell Telephone Labor Inc Magnetic core matrix apparatus
US3138785A (en) * 1959-05-21 1964-06-23 Ibm Deposited magnetic memory array
US3142047A (en) * 1960-12-14 1964-07-21 Columbia Broadcasting Systems Memory plane
US3154840A (en) * 1960-06-06 1964-11-03 Rca Corp Method of making a magnetic memory
US3171102A (en) * 1960-01-07 1965-02-23 Rca Corp Memory assembly employing apertured plates
US3178691A (en) * 1960-06-09 1965-04-13 Automatic Elect Lab Mosaic sheet for analysis and synthesis of memory meshes
US3178802A (en) * 1958-10-23 1965-04-20 Philips Corp Method of making memory matrices
US3181128A (en) * 1959-09-17 1965-04-27 Ncr Co Magnetic core memory structure
US3184719A (en) * 1958-12-24 1965-05-18 Ibm Molded core plane
US3183579A (en) * 1960-05-31 1965-05-18 Rca Corp Magnetic memory
US3184720A (en) * 1960-04-06 1965-05-18 Ncr Co Semi-permanent information-store devices
US3189532A (en) * 1960-05-19 1965-06-15 Ncr Co Process for making conductive-core magnetic device
US3197746A (en) * 1960-08-24 1965-07-27 Automatic Elect Lab Memory core assembly
US3197749A (en) * 1961-09-29 1965-07-27 Ncr Co Magnetic device and apparatus and procedure for making the same
US3206732A (en) * 1960-10-10 1965-09-14 Rca Corp Magnetic metal sheet memory array and method of making it
US3214740A (en) * 1959-01-16 1965-10-26 Rese Engineering Inc Memory device and method of making same
US3228012A (en) * 1958-04-15 1966-01-04 Ncr Co Magnetic device
US3239822A (en) * 1962-04-25 1966-03-08 Thompson Ramo Wooldridge Inc Permanent storage wire screen memory apparatus
US3268353A (en) * 1960-11-18 1966-08-23 Electrada Corp Electroless deposition and method of producing such electroless deposition
US3282723A (en) * 1960-11-18 1966-11-01 Electrada Corp Electroless deposition and method of producing such electroless deposition
US3305845A (en) * 1962-04-19 1967-02-21 Sperry Rand Corp Magnetic memory core and method
US3358273A (en) * 1959-08-06 1967-12-12 Siemens Ag Magnetic storage conductor device for electronic computers

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2910675A (en) * 1957-01-09 1959-10-27 Ibm Core array using coaxially spaced conductors
US3042998A (en) * 1957-05-06 1962-07-10 Sperry Gyroscope Co Ltd Slip ring assembly
GB895247A (en) * 1958-03-12 1962-05-02 Nat Res Dev Improvements relating to magnetic storage devices
US3106703A (en) * 1958-08-29 1963-10-08 Bell Telephone Labor Inc Magnetic core assembly
US3223983A (en) * 1958-09-25 1965-12-14 Burroughs Corp Retentive data store and material
NL240962A (ar) * 1958-10-07
US3073588A (en) * 1959-03-02 1963-01-15 Geoffrey W Morton Memory jig
NL122863C (ar) * 1960-04-28
US3224074A (en) * 1960-06-24 1965-12-21 Sylvania Electric Prod Method of making a magnetic recording head structure
US3183567A (en) * 1961-03-31 1965-05-18 Ibm Manufacturing magnetic storage matrices
GB1014181A (en) * 1961-04-14 1965-12-22 Plessey Co Ltd A method of constructing arrays of thin film toroids
US3264713A (en) * 1962-01-30 1966-08-09 Evans J Gregg Method of making memory core structures
NL288413A (ar) * 1962-02-01
GB1051257A (ar) * 1962-09-28
NL6603317A (ar) * 1966-03-15 1967-09-18
US4494294A (en) * 1981-10-13 1985-01-22 Sims James O Method of manufacture of hydraulic cylinders utilizing bronze overlays for engaging surfaces
US7848887B2 (en) * 2004-04-21 2010-12-07 Schlumberger Technology Corporation Making directional measurements using a rotating and non-rotating drilling apparatus

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2278744A (en) * 1940-05-13 1942-04-07 Honeywell Regulator Co Method of forming thermocouples
US2531820A (en) * 1943-02-03 1950-11-28 Rca Corp Voltage transformer
US2671950A (en) * 1950-03-09 1954-03-16 Sukacev Lev Method of constructing thermopiles
US2700150A (en) * 1953-10-05 1955-01-18 Ind Patent Corp Means for manufacturing magnetic memory arrays
US2732542A (en) * 1954-09-13 1956-01-24 minnick
US2792563A (en) * 1954-02-01 1957-05-14 Rca Corp Magnetic system
US2825046A (en) * 1954-06-24 1958-02-25 Plessey Co Ltd Production of magnetic material for use in computers or magnetic memory systems

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2699597A (en) * 1950-02-07 1955-01-18 Hewlett Packard Co Method of manufacturing finger contacts
US2724103A (en) * 1953-12-31 1955-11-15 Bell Telephone Labor Inc Electrical circuits employing magnetic core memory elements
US2719965A (en) * 1954-06-15 1955-10-04 Rca Corp Magnetic memory matrix writing system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2278744A (en) * 1940-05-13 1942-04-07 Honeywell Regulator Co Method of forming thermocouples
US2531820A (en) * 1943-02-03 1950-11-28 Rca Corp Voltage transformer
US2671950A (en) * 1950-03-09 1954-03-16 Sukacev Lev Method of constructing thermopiles
US2700150A (en) * 1953-10-05 1955-01-18 Ind Patent Corp Means for manufacturing magnetic memory arrays
US2792563A (en) * 1954-02-01 1957-05-14 Rca Corp Magnetic system
US2825046A (en) * 1954-06-24 1958-02-25 Plessey Co Ltd Production of magnetic material for use in computers or magnetic memory systems
US2732542A (en) * 1954-09-13 1956-01-24 minnick

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3005977A (en) * 1955-09-13 1961-10-24 Burroughs Corp Bistable state magnetic elements and coupled circuitry
US3093818A (en) * 1956-10-08 1963-06-11 Ibm Domain rotational memory system
US3012231A (en) * 1956-10-10 1961-12-05 Honeywell Regulator Co Electrical apparatus for storing digital information
US3111651A (en) * 1957-10-10 1963-11-19 Bell Telephone Labor Inc Magnetic core matrix apparatus
US3060410A (en) * 1957-10-11 1962-10-23 Ford Motor Co Logic system gating circuit
US3228012A (en) * 1958-04-15 1966-01-04 Ncr Co Magnetic device
US3052873A (en) * 1958-09-18 1962-09-04 Bell Telephone Labor Inc Magnetic memory circuits
US3178802A (en) * 1958-10-23 1965-04-20 Philips Corp Method of making memory matrices
US3070782A (en) * 1958-11-25 1962-12-25 Ibm Memory array
US3184719A (en) * 1958-12-24 1965-05-18 Ibm Molded core plane
US3214740A (en) * 1959-01-16 1965-10-26 Rese Engineering Inc Memory device and method of making same
US3138785A (en) * 1959-05-21 1964-06-23 Ibm Deposited magnetic memory array
US3358273A (en) * 1959-08-06 1967-12-12 Siemens Ag Magnetic storage conductor device for electronic computers
US3181128A (en) * 1959-09-17 1965-04-27 Ncr Co Magnetic core memory structure
US3171102A (en) * 1960-01-07 1965-02-23 Rca Corp Memory assembly employing apertured plates
US3184720A (en) * 1960-04-06 1965-05-18 Ncr Co Semi-permanent information-store devices
US3189532A (en) * 1960-05-19 1965-06-15 Ncr Co Process for making conductive-core magnetic device
US3183579A (en) * 1960-05-31 1965-05-18 Rca Corp Magnetic memory
US3154840A (en) * 1960-06-06 1964-11-03 Rca Corp Method of making a magnetic memory
US3178691A (en) * 1960-06-09 1965-04-13 Automatic Elect Lab Mosaic sheet for analysis and synthesis of memory meshes
US3197746A (en) * 1960-08-24 1965-07-27 Automatic Elect Lab Memory core assembly
US3492665A (en) * 1960-08-24 1970-01-27 Automatic Elect Lab Magnetic device using printed circuits
US3206732A (en) * 1960-10-10 1965-09-14 Rca Corp Magnetic metal sheet memory array and method of making it
US3268353A (en) * 1960-11-18 1966-08-23 Electrada Corp Electroless deposition and method of producing such electroless deposition
US3282723A (en) * 1960-11-18 1966-11-01 Electrada Corp Electroless deposition and method of producing such electroless deposition
US3142047A (en) * 1960-12-14 1964-07-21 Columbia Broadcasting Systems Memory plane
US3197749A (en) * 1961-09-29 1965-07-27 Ncr Co Magnetic device and apparatus and procedure for making the same
US3305845A (en) * 1962-04-19 1967-02-21 Sperry Rand Corp Magnetic memory core and method
US3239822A (en) * 1962-04-25 1966-03-08 Thompson Ramo Wooldridge Inc Permanent storage wire screen memory apparatus

Also Published As

Publication number Publication date
CH345920A (fr) 1960-04-30
FR1179285A (fr) 1959-05-22
US2877540A (en) 1959-03-17
DE1073652B (de) 1960-01-21
NL215595A (ar)
NL112668C (ar)
GB801340A (en) 1958-09-10

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