GB918742A - Improvements in and relating to recording apparatus - Google Patents

Improvements in and relating to recording apparatus

Info

Publication number
GB918742A
GB918742A GB2634360A GB2634360A GB918742A GB 918742 A GB918742 A GB 918742A GB 2634360 A GB2634360 A GB 2634360A GB 2634360 A GB2634360 A GB 2634360A GB 918742 A GB918742 A GB 918742A
Authority
GB
United Kingdom
Prior art keywords
echo
arm
recording
fish
scale member
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
GB2634360A
Inventor
Stanley Capel Sparling
Alfred Willis Welsh
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 Hughes Ltd
Original Assignee
Kelvin Hughes 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 Kelvin Hughes Ltd filed Critical Kelvin Hughes Ltd
Priority to GB2634360A priority Critical patent/GB918742A/en
Publication of GB918742A publication Critical patent/GB918742A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/56—Display arrangements
    • G01S7/60—Display arrangements for providing a permanent recording
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
    • G01S15/06—Systems determining the position data of a target
    • G01S15/08—Systems for measuring distance only
    • G01S15/10—Systems for measuring distance only using transmission of interrupted, pulse-modulated waves
    • G01S15/101—Particularities of the measurement of distance

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

918,742. Echo-sounders. KELVIN & HUGHES Ltd. July 26, 1961 [July 28, 1960], No. 26343/60. Drawings to Specification. Class 40 (7). [Also in Group XIX] In a pulse-echo fish-finding echo-sounder comprising a rotating arm which carries a recording member traversing a recording zone, a rotatable scale member associated with the arm, and means for triggering a transmitter whenever the arm passes a predetermined point on the scale member, a visual indicator is mounted on the arm and is adapted to provide an indication of the reception of an echo signal irrespoective of the angular position of the arm, and means are provided for rotating the scale member whereby the recording range over the recording zone can be shifted. Thus if an echo signal is received from fish lying outside a recording range a visual warning is given and transmitter phasing means can be manipulated to so adjust the recording range as to include the fish-echo distance. An audible alarm may be added. Specification 576,295 is referred to.
GB2634360A 1960-07-28 1960-07-28 Improvements in and relating to recording apparatus Expired GB918742A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2634360A GB918742A (en) 1960-07-28 1960-07-28 Improvements in and relating to recording apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2634360A GB918742A (en) 1960-07-28 1960-07-28 Improvements in and relating to recording apparatus

Publications (1)

Publication Number Publication Date
GB918742A true GB918742A (en) 1963-02-20

Family

ID=10242177

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2634360A Expired GB918742A (en) 1960-07-28 1960-07-28 Improvements in and relating to recording apparatus

Country Status (1)

Country Link
GB (1) GB918742A (en)

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