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GB538703A - Remote reading compass system - Google Patents

Remote reading compass system

Info

Publication number
GB538703A
GB538703A GB871640A GB871640A GB538703A GB 538703 A GB538703 A GB 538703A GB 871640 A GB871640 A GB 871640A GB 871640 A GB871640 A GB 871640A GB 538703 A GB538703 A GB 538703A
Authority
GB
United Kingdom
Prior art keywords
coils
coil
field
transmitter
instrument
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
GB871640A
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.)
Kelvin Bottomley & Baird Ltd
WILLIAM HENRY HOATHER
Original Assignee
Kelvin Bottomley & Baird Ltd
WILLIAM HENRY HOATHER
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 Kelvin Bottomley & Baird Ltd, WILLIAM HENRY HOATHER filed Critical Kelvin Bottomley & Baird Ltd
Priority to GB871640A priority Critical patent/GB538703A/en
Publication of GB538703A publication Critical patent/GB538703A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/30—Regulating or controlling the blowing
    • C21C5/32—Blowing from above

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Near-Field Transmission Systems (AREA)

Abstract

538,703. Distant reading compasses. KELVIN, BOTTOMLEY & BAIRD, Ltd., and HOATHER, W. H. May 15, 1940, No. 8716. [Class 40 (i)] [Also in Group XXXVI] A coil or coils 1 is or are intermittently subjected to the earth's field by a rotating or oscillating screen 3 of high permeability and the generated A.C. is indicated by a sensitive instrument 2. The A.C. may be rectified or the instrument 2 may be connected to the coil by a switch during alternate half cycles. The single coil system shown is subject to a 180 degrees error but a system using cross coils at the transmitting and receiving instruments, Fig. 2 (not shown), or three or more coils is free from this defect. A number of receivers may be operated from a single transmitter ; amplifiers may be used, and the screen may have a rectilinear movement. The transmitter is suspended in gimbals to avoid errors due to the vertical component of the field.
GB871640A 1940-05-15 1940-05-15 Remote reading compass system Expired GB538703A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB871640A GB538703A (en) 1940-05-15 1940-05-15 Remote reading compass system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB871640A GB538703A (en) 1940-05-15 1940-05-15 Remote reading compass system

Publications (1)

Publication Number Publication Date
GB538703A true GB538703A (en) 1941-08-13

Family

ID=9857862

Family Applications (1)

Application Number Title Priority Date Filing Date
GB871640A Expired GB538703A (en) 1940-05-15 1940-05-15 Remote reading compass system

Country Status (1)

Country Link
GB (1) GB538703A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2786179A (en) * 1953-06-29 1957-03-19 Collins Radio Co Flux detector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2786179A (en) * 1953-06-29 1957-03-19 Collins Radio Co Flux detector

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