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GB773872A - Improvements relating to electric switching arrangements - Google Patents

Improvements relating to electric switching arrangements

Info

Publication number
GB773872A
GB773872A GB27153/52A GB2715352A GB773872A GB 773872 A GB773872 A GB 773872A GB 27153/52 A GB27153/52 A GB 27153/52A GB 2715352 A GB2715352 A GB 2715352A GB 773872 A GB773872 A GB 773872A
Authority
GB
United Kingdom
Prior art keywords
switching devices
alternating
controlled
staticizor
oct
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
GB27153/52A
Inventor
Vernon Leopold Newhouse
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.)
NAT RES DEV
National Research Development Corp UK
Original Assignee
NAT RES DEV
National Research Development Corp UK
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 NAT RES DEV, National Research Development Corp UK filed Critical NAT RES DEV
Priority to GB27153/52A priority Critical patent/GB773872A/en
Priority to US388232A priority patent/US2926298A/en
Publication of GB773872A publication Critical patent/GB773872A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor

Landscapes

  • Recording Or Reproducing By Magnetic Means (AREA)
  • Fax Reproducing Arrangements (AREA)

Abstract

773,872. Digital electric calculating-apparatus. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Oct. 16, 1953 [Oct. 29, 1952], No. 27153/52. Class 106 (1). [Also in Group XXXIX] The selective application of an alternating: signal from a pulse-controlled source ACS to one of the writing heads WH of a magnetic drum store may be controlled by the instruction staticizor device of an electronic computing machine in accordance with digital information represented by a train of pulses. A matrix of switching devices SM each comprising a transformer 40 having a normally high impedance (see Group XXXIX), control the application of alternating signals to the writing heads. By applying a control potential from the staticizor. to a selected row and a column tube in the tube groups Va-Vc and V1-V3 respectively, direct current is applied to a single switching device and the impedance of the constituent transformer is substantially lowered. The number of tubes may be reduced by using the cascaded arrangement shown in Fig. 3. In this embodiment the matrix comprises groups of four switching devices SH. The alternating signal is applied to one switching device only in each group by way of an antecedent stage comprising further switching devices controlled by column and row tubes VI-VII, Vα-V# respectively. Specification 707,634 is referred to.
GB27153/52A 1952-10-29 1952-10-29 Improvements relating to electric switching arrangements Expired GB773872A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB27153/52A GB773872A (en) 1952-10-29 1952-10-29 Improvements relating to electric switching arrangements
US388232A US2926298A (en) 1952-10-29 1953-10-26 Electric switching arrangements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB27153/52A GB773872A (en) 1952-10-29 1952-10-29 Improvements relating to electric switching arrangements

Publications (1)

Publication Number Publication Date
GB773872A true GB773872A (en) 1957-05-01

Family

ID=10255068

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27153/52A Expired GB773872A (en) 1952-10-29 1952-10-29 Improvements relating to electric switching arrangements

Country Status (2)

Country Link
US (1) US2926298A (en)
GB (1) GB773872A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2972060A (en) * 1955-08-18 1961-02-14 Sperry Rand Corp Logical elements
US3113216A (en) * 1957-09-25 1963-12-03 Thompson Ramo Wooldridge Inc Logical circuits employing saturable core inductors
US3130389A (en) * 1958-08-05 1964-04-21 Litton Ind Of California Diode bridge-gated stepping register
US3174137A (en) * 1959-12-07 1965-03-16 Honeywell Inc Electrical gating apparatus
US3441909A (en) * 1966-04-21 1969-04-29 Franklin L Monohan Magnetic memory system
US3453612A (en) * 1966-08-26 1969-07-01 Potter Instrument Co Inc Magnetic head selection circuitry
US4019206A (en) * 1971-09-08 1977-04-19 Peter Haas Method and apparatus for magnetic recording of data with a recording head having a plurality of physically parallel, serially connectable conductors
JPS5310847B2 (en) * 1971-10-13 1978-04-17
US3824623A (en) * 1972-12-14 1974-07-16 Potter Instrument Co Inc System for reducing cross talk of unselected magnetic heads into a selected head
US4054926A (en) * 1976-02-11 1977-10-18 Paul Jeffries Haynes Device for automatic program selection on prerecorded magnetic tape

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2734942A (en) * 1956-02-14 Magnetic commutator
US1920618A (en) * 1928-10-12 1933-08-01 Union Switch & Signal Co Voltage regulating apparatus
US2136441A (en) * 1934-04-21 1938-11-15 Rca Corp Television system
US2129920A (en) * 1936-05-15 1938-09-13 Gerald Alan S Fitz Electric control system
US2514935A (en) * 1949-08-12 1950-07-11 Gen Electric Variable impedance apparatus
US2691151A (en) * 1950-05-22 1954-10-05 Products & Licensing Corp Multiple switching systems
US2686299A (en) * 1950-06-24 1954-08-10 Remington Rand Inc Selecting network
FR1014597A (en) * 1950-11-16 1952-08-19 Int Standard Electric Corp Electric discharge device
US2730694A (en) * 1951-02-02 1956-01-10 Ferranti Ltd Amplitude recording system utilizing saturable core reactors
US2611025A (en) * 1951-08-01 1952-09-16 Gen Electric Selective signal transmission system
US2817057A (en) * 1952-11-19 1957-12-17 Hans E Hollmann Resistive reactor

Also Published As

Publication number Publication date
US2926298A (en) 1960-02-23

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