GB1476068A - Navigational instruments - Google Patents

Navigational instruments

Info

Publication number
GB1476068A
GB1476068A GB586475A GB586475A GB1476068A GB 1476068 A GB1476068 A GB 1476068A GB 586475 A GB586475 A GB 586475A GB 586475 A GB586475 A GB 586475A GB 1476068 A GB1476068 A GB 1476068A
Authority
GB
United Kingdom
Prior art keywords
vessel
instrument
sights
heading
sight
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
GB586475A
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
Priority to GB586475A priority Critical patent/GB1476068A/en
Priority to SE7600305A priority patent/SE7600305L/en
Priority to US05/651,621 priority patent/US4057906A/en
Priority to NL7600981A priority patent/NL7600981A/en
Priority to DE2604102A priority patent/DE2604102A1/en
Priority to CA244,953A priority patent/CA1051847A/en
Priority to IT20031/76A priority patent/IT1055173B/en
Priority to BE164223A priority patent/BE838441A/en
Priority to DK54776*#A priority patent/DK54776A/en
Priority to FR7603719A priority patent/FR2300992A1/en
Priority to JP51014373A priority patent/JPS51106462A/ja
Publication of GB1476068A publication Critical patent/GB1476068A/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
    • G01C1/00—Measuring angles

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Walking Sticks, Umbrellas, And Fans (AREA)

Abstract

1476068 Navigational apparatus R C KING 13 Jan 1976 [12 Feb 1975 17 Oct 1975] 5864/75 Heading G1F An instrument suitable for taking bearings and horizontal angles comprises a body having edge portions 3-6 which are adjustable for placing against a support or supports, e.g. windows of a vessel wheelhouse, so that the instrument when so placed is in a fixed predetermined orientation with respect to the supports. The housing comprises two spaced parallel plates, 1, 2 pivotally mounting four triangular edge portions 3-6 of hard rubber and having corrugated edges 7; the edge portions can be fixed in a chosen position by tightening screws 9, 10 and nuts 11. As shown in Fig. 1, the portions 3, 4 are positioned so that when placed against either of two windows, represented by chain lines 26, the instrument has an orientation, defined by a line through a centre boss 12 and a fixed mark 20, parallel to the vessel's heading. The centre boss carries a rotatable annulus 21 with a scale 22 which is set to the heading of the vessel as observed e.g. by the steering compass, the direction of any deviation cord compensation being noted by a pointer 24. The centre boss also carries three rotatable sights 27, 28, 29 which are alignable with a fixed central sight 30; the sight 27 carries a ring 33 with a scale 34, while the sights 28, 29 move independently of the ring 33, so that in use, with the sight 27 set to a central object and the sights 28, 29 to objects on either side, the angles between the central object and the side objects are indicated. The ring 33 is adapted to carry a cylindrical body (43), Fig. 5 (not shown) on which is mounted a radio direction finding aerial (47) for use instead of, but in a similar manner to, the sights 27-29. A handle (14), Fig. 4 (not shown) may be adjustably attached to a part 13; the handle may include a cruciform member (42) which may be seated in a complementary aperture in the vessel to align the instrument with the vessel. The instrument has a floatation chamber (17) Fig. 2 (not shown).
GB586475A 1975-02-12 1975-02-12 Navigational instruments Expired GB1476068A (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
GB586475A GB1476068A (en) 1975-02-12 1975-02-12 Navigational instruments
SE7600305A SE7600305L (en) 1975-02-12 1976-01-14 PORTABLE NAVIGATION INSTRUMENT
US05/651,621 US4057906A (en) 1975-02-12 1976-01-23 Navigational instruments
NL7600981A NL7600981A (en) 1975-02-12 1976-01-30 NAVIGATION INSTRUMENT.
DE2604102A DE2604102A1 (en) 1975-02-12 1976-02-03 NAVIGATION INSTRUMENT
CA244,953A CA1051847A (en) 1975-02-12 1976-02-03 Portable navigational instrument
IT20031/76A IT1055173B (en) 1975-02-12 1976-02-10 REFINEMENTS FOR NAVIGATION INSTRUMENTS
BE164223A BE838441A (en) 1975-02-12 1976-02-11 PORTABLE NAVIGATION INSTRUMENT
DK54776*#A DK54776A (en) 1975-02-12 1976-02-11 NAVIGATION INSTRUMENT
FR7603719A FR2300992A1 (en) 1975-02-12 1976-02-11 PORTABLE NAVIGATION INSTRUMENT
JP51014373A JPS51106462A (en) 1975-02-12 1976-02-12

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB586475A GB1476068A (en) 1975-02-12 1975-02-12 Navigational instruments

Publications (1)

Publication Number Publication Date
GB1476068A true GB1476068A (en) 1977-06-10

Family

ID=9804053

Family Applications (1)

Application Number Title Priority Date Filing Date
GB586475A Expired GB1476068A (en) 1975-02-12 1975-02-12 Navigational instruments

Country Status (2)

Country Link
BE (1) BE838441A (en)
GB (1) GB1476068A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113389995A (en) * 2021-06-11 2021-09-14 中国人民解放军陆军工程大学 Platform leveling system and method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110550036B (en) * 2018-05-30 2022-11-04 奥迪股份公司 Driving assistance apparatus, vehicle, and driving assistance system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113389995A (en) * 2021-06-11 2021-09-14 中国人民解放军陆军工程大学 Platform leveling system and method

Also Published As

Publication number Publication date
BE838441A (en) 1976-05-28

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee