[go: up one dir, main page]

GB129059A - Improved Means for Signalling the Presence of Explosive Mines, Submarine or other Ships, Icebergs and other Bodies. - Google Patents

Improved Means for Signalling the Presence of Explosive Mines, Submarine or other Ships, Icebergs and other Bodies.

Info

Publication number
GB129059A
GB129059A GB877818A GB877818A GB129059A GB 129059 A GB129059 A GB 129059A GB 877818 A GB877818 A GB 877818A GB 877818 A GB877818 A GB 877818A GB 129059 A GB129059 A GB 129059A
Authority
GB
United Kingdom
Prior art keywords
cylinder
proximity
needle
axis
icebergs
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
GB877818A
Inventor
Luigi Giovanni Valerio Rota
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 GB877818A priority Critical patent/GB129059A/en
Publication of GB129059A publication Critical patent/GB129059A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/08Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Electromagnetism (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

129,059. Rota, L. G. V. May 28, 1918. Signalling proximity of vessels, iecbergs, and the like.-Apparatus for detecting the proximity of mines, submarines, icebergs, &c. comprises a. wooden cylinder d carried by spokes d<1> and bearings d<2> on a shaft d<3> fixed within an outer wooden cylinder a. The cylinder d has insulated windings d<4> connected through brush and ring contacts d<5> with a sensitive galvanometer f<2>, and may be rotated by a flexible shaft e<2> and bevelgear e<1>. A fixed frame g with coils of soft-iron wire g<1> or plates has within it a magnetic declination needle g<2>. An outer iron casing a<1> with pointed ends may be provided, and the apparatus is suspended from a ship by a telescopic shaft b<3> with ball bearings b<2>, c, or by other suitable suspension, allowing the axis of the device to be kept horizontal, and its height and position about a vertical axis adjusted. The needle is observed by reflexion in mirrors h, h<1>, and the galvanometer directly, through a tube i which may be provided with lenses, a lamp a<4> serving for illumination. The device may be used with the cylinder d stationary and its axis at right-angles to the magneto meridian, or with the cylinder rotated and its axis parallel to the meridian or inclined thereto at 30 to 35 degrees. The apparatus is stated to indicate the proximity and direction of a mine &c, Two such devices may be used in conjunction, with the cylinders respectively stationary and rotating, and one of the devices may have a dip needle. In a modification, stated to detect the proximity of an iceberg owing to its high electric potential, the casing a is omitted, and two copper cylinders are provided, one within and the other without the cylinder a, extending approximately half its length and carried by a disk which closes the end of the cylinder d. The copper cylinders are connected to an electroscope or torsion balance.
GB877818A 1918-05-28 1918-05-28 Improved Means for Signalling the Presence of Explosive Mines, Submarine or other Ships, Icebergs and other Bodies. Expired GB129059A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB877818A GB129059A (en) 1918-05-28 1918-05-28 Improved Means for Signalling the Presence of Explosive Mines, Submarine or other Ships, Icebergs and other Bodies.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB877818A GB129059A (en) 1918-05-28 1918-05-28 Improved Means for Signalling the Presence of Explosive Mines, Submarine or other Ships, Icebergs and other Bodies.

Publications (1)

Publication Number Publication Date
GB129059A true GB129059A (en) 1919-06-30

Family

ID=32343476

Family Applications (1)

Application Number Title Priority Date Filing Date
GB877818A Expired GB129059A (en) 1918-05-28 1918-05-28 Improved Means for Signalling the Presence of Explosive Mines, Submarine or other Ships, Icebergs and other Bodies.

Country Status (1)

Country Link
GB (1) GB129059A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1058648B (en) * 1939-03-13 1959-06-04 Phil Alexander Gibsone Derzeit Method for searching for or aiming at ferromagnetic bodies or for controlling objects in the direction of ferromagnetic bodies

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1058648B (en) * 1939-03-13 1959-06-04 Phil Alexander Gibsone Derzeit Method for searching for or aiming at ferromagnetic bodies or for controlling objects in the direction of ferromagnetic bodies

Similar Documents

Publication Publication Date Title
US2966853A (en) Buoyant mine with gradiometer
GB129059A (en) Improved Means for Signalling the Presence of Explosive Mines, Submarine or other Ships, Icebergs and other Bodies.
US2424772A (en) System for detecting magnetic masses
US2431319A (en) Magnetic firing device
US2632884A (en) Orienting mechanism for magnetic detector devices
US1376967A (en) Circuit-closer
US2397137A (en) Magnetic controlling device
US1393471A (en) Submarine signaling
US1892147A (en) Vibration detector
US1548024A (en) Means for detecting submarines and other invisible objects
US1405996A (en) Centrifugal diving apparatus
US1330501A (en) Damping means for gyroscopic compasses
US2599579A (en) Streamline depth charge
US1067808A (en) Gyroscopic compass.
US1387722A (en) Firing instrument for marine mines
US2641184A (en) Streamline depth charge
US1488372A (en) Telltale compass
US551295A (en) Fourths to george citismore and eugene p
US1242065A (en) Ship&#39;s gyroscopic-compass set.
US1569745A (en) Radiocompass reading device for ships
US2344483A (en) Submarine mine
US3191429A (en) Weight and balance equipment
US4210083A (en) Underwater electric current and alternating magnetic field detector
US1282432A (en) Search-light reflector.
GB550673A (en) An improved position indicator for use on aircraft, ships and the like