DE916003C - Bottom trawl with high net and central trawl - Google Patents

Bottom trawl with high net and central trawl

Info

Publication number
DE916003C
DE916003C DEH12423A DEH0012423A DE916003C DE 916003 C DE916003 C DE 916003C DE H12423 A DEH12423 A DE H12423A DE H0012423 A DEH0012423 A DE H0012423A DE 916003 C DE916003 C DE 916003C
Authority
DE
Germany
Prior art keywords
trawl
net
central
line
high net
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
DEH12423A
Other languages
German (de)
Inventor
Adolf Hermann
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 DEH12423A priority Critical patent/DE916003C/en
Application granted granted Critical
Publication of DE916003C publication Critical patent/DE916003C/en
Expired legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01KANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K73/00Drawn nets
    • A01K73/02Trawling nets

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)

Description

Die Erfindung bezweckt, die in höheren Wasserschichten stehenden Fische zu erfassen und dadurch das Fangergebnis zu erhöhen.The invention aims to live in higher water layers to capture standing fish and thereby increase the catch result.

Bisher wurden zu diesem Zweck mehrere nach 5 oben ziehende Scheerbretter am Netzkopftau befestigt, deren Kopfleinen auf die Scheerbretter wirken, wodurch das Netzdach gehoben und eine Scheuchwirkung in Richtung auf die Netzöffnung bewirkt wurde. Fig. ι stellt diese bisherige, besonders beim Heringsfang gebräuchliche Netzeinstellung dar. a1, a2 und a3 sind die Höhenscheerbretter, b1, b1, bz, b2 und b3, b3 die Kopfleinen und c, c die Seitenscheerbretter. Das Klaren dieses Leinensystems macht beim Aussetzen oft große Schwierigkeiten und gefährdet die Mannschaft. Außerdem wurden die über der Netzöffnung stehenden Fische nicht mit Sicherheit erfaßt.So far, several scissor boards pulling upwards were attached to the net head rope for this purpose, the head lines of which act on the scissor boards, lifting the net roof and causing a scare effect in the direction of the net opening. Fig. Ι shows this previous network setting, which is particularly common in herring fishing. A 1 , a 2 and a 3 are the height shear boards, b 1 , b 1 , b z , b 2 and b 3 , b 3 are the head lines and c, c are the Side sash boards. The clearing of this line system often causes great difficulties when launching and endangers the crew. In addition, the fish standing over the opening of the net were not recorded with certainty.

Diese Nachteile werden durch die Erfindung dadurch aufgehoben, daß ein Hochnetz entweder, wie in Fig. 2, über dem Grundschleppnetz mit Durchlaß bei d in den Netzbeutel oder mit Anschluß an das Kopftau (Fig. 3) nach oben und vorn an einer dritten Kurrleine/ (Fig. 2 und 3), die in der Mitte am vorderen Ende des Hochnetzes (Fig. 2 und 3) Ijei g angreift, gezogen wird. Diese hochstehende Mittelkurrleine, die etwa nur 25% der Festigkeit der Scheerbrettkurrleinen h, h (Fig. 1 bis 3) zu besitzen braucht, läuft, falls nicht eine besondere Trommel hierfür vorgesehen ist, über Reelingroller mit der vorderen Kurrleine auf deren Windentrommel und wird nach Marken eingestellt.These disadvantages are eliminated by the invention in that a high net either, as in Fig. 2, above the bottom trawl with a passage at d into the net bag or with a connection to the head rope (Fig. 3) upwards and forwards on a third haul line / (Fig. 2 and 3), which attacks in the middle at the front end of the high net (Fig. 2 and 3) Ijei g is pulled. This upright middle trawl line, which only needs about 25% of the strength of the shearboard trawl lines h, h (Fig. 1 to 3), runs, if a special drum is not provided for this, over reeling rollers with the front trawl line on the winch drum and is after Brands discontinued.

Durch diese neue Netzkonstruktion wird die eigentliche Netzöffnung um das Mehrfache vergrößert und die Scheuch wirkung großer Fischschwärme durch die hochstehende Mittelkurrleine auf ihrer ganzen Länge nach unten erreicht.This new net construction enlarges the actual net opening several times and the scare effect of large schools of fish due to the high central fly line reached downwards along their entire length.

Statt der bisherigen acht Leinen und drei Höhenscheerbretter ist nur eine Leine, die Mittelkurrleine, beim Netzaussetzen wahrzunehmen, wodurch diese Arbeit erleichtert und-beschleunigt wird.Instead of the previous eight lines and three height shear boards, there is only one line, the central bow line, noticeable when the network is out of order, which makes this work easier and faster.

Claims (1)

PATENTANSPRUCH:PATENT CLAIM: Grundschleppnetz mit Obernetz oder vergrößertem Dachstück, dadurch gekennzeichnet, daß dieses an der Vorkante von einer hoch über und mitten zwischen den Scheerbrettkurrleineu laufenden dritten Kurrleine gezogen wird.Bottom trawl with upper net or enlarged roof section, characterized in that that this is on the leading edge of a high above and in the middle between the scissor board trailing line ongoing third hoist line is pulled.
DEH12423A 1952-05-06 1952-05-06 Bottom trawl with high net and central trawl Expired DE916003C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEH12423A DE916003C (en) 1952-05-06 1952-05-06 Bottom trawl with high net and central trawl

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH12423A DE916003C (en) 1952-05-06 1952-05-06 Bottom trawl with high net and central trawl

Publications (1)

Publication Number Publication Date
DE916003C true DE916003C (en) 1954-08-02

Family

ID=7146985

Family Applications (1)

Application Number Title Priority Date Filing Date
DEH12423A Expired DE916003C (en) 1952-05-06 1952-05-06 Bottom trawl with high net and central trawl

Country Status (1)

Country Link
DE (1) DE916003C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1176917B (en) * 1960-03-02 1964-08-27 Johannes Jacobus Van Der Toorn Floating trawl

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1176917B (en) * 1960-03-02 1964-08-27 Johannes Jacobus Van Der Toorn Floating trawl

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