DE322174C - Equipment on fishing nets to indicate the entry of mines u. like - Google Patents
Equipment on fishing nets to indicate the entry of mines u. likeInfo
- Publication number
- DE322174C DE322174C DENDAT322174D DE322174DD DE322174C DE 322174 C DE322174 C DE 322174C DE NDAT322174 D DENDAT322174 D DE NDAT322174D DE 322174D D DE322174D D DE 322174DD DE 322174 C DE322174 C DE 322174C
- Authority
- DE
- Germany
- Prior art keywords
- mines
- entry
- indicate
- equipment
- fishing nets
- 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
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- 229910052742 iron Inorganic materials 0.000 claims 1
- 241001233242 Lontra Species 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K75/00—Accessories for fishing nets; Details of fishing nets, e.g. structure
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Mechanical Means For Catching Fish (AREA)
Description
Die nachstehend beschriebene Einrichtung hat den Zweck, dem Fischer rechtzeitig den Eintritt von Minen u. dgl. in das Fischnetz anzuzeigen, so daß er entweder das Netz abschneiden oder es durch eine geeignete Vorrichtung in sicherer Entfernung vom Boot entleeren kann.The purpose of the facility described below is to provide the fisherman with the To indicate entry of mines and the like into the fishing net, so that he can either cut the net or it can be emptied by a suitable device at a safe distance from the boat.
In der Zeichnung stellen dar: d das Fisth-The drawing shows: d the fisth
netz, f die Netzöffnung, e die Scherbretter,net, f the net opening, e the otter boards,
ίο g die Schlepptaue, die nach dem Boot führen.ίο g the tow ropes that lead to the boat.
Die Netzöffnung f ist von zwei isoliertenThe mesh opening f is isolated by two
Drahtleitungen α und b umgeben, die an dem Tau g entlang zum Boot hinführen, Durch die Leitung α fließt ein Primärstrom, wäh-Surrounding wire lines α and b , which lead along the rope g to the boat, A primary current flows through the line α, while
*5 rend die Enden der Leitung b an ein Relais* 5 rend the ends of line b to a relay
o. dgl. angeschlossen sind, das seinerseits irgendeine Signalvorrichtung bekannter und bewährter Konstruktion auslösen kann.o. The like. Are connected, which in turn any signal device known and proven design can trigger.
Durch den Primärstrom in der Leitung a entsteht in der Öffnung f ein schwaches elektromagnetisches Feld und in der Leitung b ein schwacher Sekundärstrom.The primary current in line a creates a weak electromagnetic field in opening f and a weak secondary current in line b.
Tritt jetzt eine Mine durch die Öffnung hindurch, so verstärkt sich das Kraftlinienfeld erheblich und damit auch der Sekundärstrom in der Leitung b. Dadurch wird das Relais, Galvanometer o. dgl. beeinflußt und löst die Signalvorrichtung aus, die ein Schalloder Lichtsignal oder beides geben kann. Andere Signalvorrichtungen oder Messungen der Feldstärkeänderung in der Leitung a allein können ebenfalls ohne weiteres Anwendung finden.If a mine now passes through the opening, the force line field increases considerably and with it the secondary current in line b. This affects the relay, galvanometer or the like and triggers the signaling device, which can give a sound or light signal or both. Other signal devices or measurements of the change in field strength in the line a alone can also be used without further ado.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE322174T |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE322174C true DE322174C (en) | 1920-06-22 |
Family
ID=6165697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT322174D Expired DE322174C (en) | Equipment on fishing nets to indicate the entry of mines u. like |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE322174C (en) |
-
0
- DE DENDAT322174D patent/DE322174C/en not_active Expired
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