GB589901A - An instrument or device for use in navigational or survey work or instruction - Google Patents

An instrument or device for use in navigational or survey work or instruction

Info

Publication number
GB589901A
GB589901A GB8159/45A GB815945A GB589901A GB 589901 A GB589901 A GB 589901A GB 8159/45 A GB8159/45 A GB 8159/45A GB 815945 A GB815945 A GB 815945A GB 589901 A GB589901 A GB 589901A
Authority
GB
United Kingdom
Prior art keywords
base
sighting
pointer
angles
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
GB8159/45A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB589901A publication Critical patent/GB589901A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
    • G01C21/02—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by astronomical means

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Astronomy & Astrophysics (AREA)
  • Automation & Control Theory (AREA)
  • General Physics & Mathematics (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)

Abstract

589,901. Sighting clinometers. INGLIS, J. N. April 2, 1945, No'. 8159. Convention date, April 15, 1944. [Class 97 (ii)] A sighting instrument for measuring altitudes of celestial bodies, angles of depression and elevation of terrestrial objects. and for other like purposes comprising a vertical member 1 carrying a scale 6 and sighting means 4 and rotatably mounted on a horizontal axis 2a from which depends a pointer 3 which is free to swing under gravity and co-operates with the scale 6. The sighting means 4 consists of apertures in two diametrically opposite lugs 4, 5 fixed to the turnable member. The support 2 of the turnable member 1 is mounted on a turn-table 7 which is provided with scales of horizontal angles indicated by a pointer 12 on the base. A pointer 16 on the turn-table co-operates with scales on the base indicating local apparent time, magnetic deviation or azimuth angles. A magnetic needle 17, spirit level, and means 20 to adjust the base angle may be provided on the base.
GB8159/45A 1944-04-15 1945-04-02 An instrument or device for use in navigational or survey work or instruction Expired GB589901A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IE589901X 1944-04-15

Publications (1)

Publication Number Publication Date
GB589901A true GB589901A (en) 1947-07-02

Family

ID=11042337

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8159/45A Expired GB589901A (en) 1944-04-15 1945-04-02 An instrument or device for use in navigational or survey work or instruction

Country Status (1)

Country Link
GB (1) GB589901A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2122348A (en) * 1982-06-21 1984-01-11 Ronald Morris Teaching aid
GB2124375A (en) * 1982-07-19 1984-02-15 Stolle Corp Antenna alignment gage
GB2211609A (en) * 1987-10-27 1989-07-05 Argosy Electronics Limited Alignment device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2122348A (en) * 1982-06-21 1984-01-11 Ronald Morris Teaching aid
GB2124375A (en) * 1982-07-19 1984-02-15 Stolle Corp Antenna alignment gage
GB2211609A (en) * 1987-10-27 1989-07-05 Argosy Electronics Limited Alignment device

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