GB313074A - - Google Patents

Info

Publication number
GB313074A
GB313074A GB12956/29A GB1295629A GB313074A GB 313074 A GB313074 A GB 313074A GB 12956/29 A GB12956/29 A GB 12956/29A GB 1295629 A GB1295629 A GB 1295629A GB 313074 A GB313074 A GB 313074A
Authority
GB
United Kingdom
Prior art keywords
canvas
frame
net
angle
abd
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
GB12956/29A
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.)
V D Ltd
Original Assignee
V D Ltd
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 V D Ltd filed Critical V D Ltd
Publication of GB313074A publication Critical patent/GB313074A/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
    • A01K73/04Devices for spreading or positioning, e.g. control thereof
    • A01K73/05Devices for spreading or positioning, e.g. control thereof for vertical sheering

Landscapes

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

Abstract

313,074. V.D., Ltd., (Assignees of Soc. Anon pour l'Exploitation des Brevets et ProcÚdÚs Vigneron-Dahl). June 6, 1928, [Convention date]. Trawling-gear.-The upper sheet of a trawl net is lifted by a sheet of canvas secured at its front edge along or adjacent to the head-rope of the net, and so arranged that the angle between the net and the canvas automatically varies with the speed. The canvas may be stretched on a triangular frame or it may be without a frame; in both cases its free apex may be weighted as indicated in Fig. 4, which shows a frame ABD with cross-members under which the canvas is held. Fig. 1 shows a frame comprising a lower triangle ABD with cross-members EFG on which canvas is supported, as in Fig. 4, and an upper triangle, which may be filled with netting, and which bears against the upper sheet of the trawl net. The piece C, D may be adjustable to vary the angle a.
GB12956/29A 1928-06-06 1929-04-26 Expired GB313074A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR313074T 1928-06-06

Publications (1)

Publication Number Publication Date
GB313074A true GB313074A (en) 1930-02-20

Family

ID=31897909

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12956/29A Expired GB313074A (en) 1928-06-06 1929-04-26

Country Status (1)

Country Link
GB (1) GB313074A (en)

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