Improvements in Trawl Nets for Sea Fishing.
Year: 1895

page_text: Date of Application, 28th Nov., 1895
L
200
1005
PROVISIONAL SPECIFICATION.
Improvements in Trawl Nets for Sea Fishing.
1, HERMANN GERHARD CORDES, of Fahrstrasse 26, Bremerhaven, in the
Empire of Germany do hereby declare the nature of this invention to be as
follows:-
The present invention relates to an improvement in trawl nets for sea fishing.
Until now the net meshes have been arranged so that the diagonals of the mesh
rectangles coincide with the direction of draught, the consequence being that in
drawing along the net the meshes were contracted.
Small fish which should not be taken and by the catching of which great damage
is done to the fishery, could not escape through the contracted meshes and perished
in consequence.
By the new arrangement of the meshes forming the object of this invention the
contraction of the meshes is avoided in drawing along the net.
The mesh rectangles are arranged so that two sides of the rectangle are parallel
to the direction of draught, while the two other sides lie at an angle to the direction
of draught for the purpose of avoiding the contraction of the meshes in drawing
along the net, by the sides, lying angularly to the direction of draught, opposing
the contraction of the mesh rectangles.
Dated this 28th day of November 1895.
HERBERT HADDAN & Co.,
18 Buckingham Street, Strand, London, W.C.,
Agents to the Applicant.
Improvements in Trawl Nets for Sea Fishing.
I HERMANN GERHARD CORDES of Fahrstrasse 26, Bremerhaven in the
Empire of Germany, do hereby declare the nature of this invention and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement :-
This invention relates to improvements in trawl nets for sea fishing.
Hitherto the net meshes have been arranged in such a manner that the diagonals
of the mesh-rectangles coincided with the direction of draught the consequence
being that in drawing along the net, the meshes were contracted.
Small worthless fish which should not be taken and by the catching of which
great damage is done to the fishery, could not escape through the contracted
meshes and perished.
By the new arrangement of the meshes forming the object of this invention the
contraction of the meshes is avoided in drawing along the net.
The mesh rectangles are arranged so that two sides of the rectangle are parallel
to the direction of draught in order to avoid the contraction of the meshes by
drawing along the net the sides of the mesh rectangles lying angularly to the
direction of draught being opposed to the contraction of the meshes.

page_text: Fig. 1 shows a net in use.
Fig. 2 and 24 show the previous arrangement of the meshes and
Fig. 5 shows the new arrangement forming the object of this invention.
Hitherto the meshes as shown in Fig. 2 and in the under part of the net in
Fig. 1, were arranged in such a manner that the direction of draught coincided
with the diagonals of the mesh rectangles and the consequence thereof was that by
drawing along the net the meshes were contracted as shown in Fig. 2^.
By means of the new mesh arrangement shown in Fig. 3 rectangular to the
direction of draught h the meshes are not contracted by drawing along the net, the
cross-strings i opposing the contraction of the longitudinal strings o, whereby
the meshes remain open for the escape of small fish.
The under part of the uet may also be constructed according to the previous
arrangement of meshes for the upper part however the new arrangement is necessary
in order to allow sinall fish to escape.
Having now particularly described and ascertained the nature of this inven
tion and in what manner the same is to be performed I declare that what I
claim is
Trawl net for sea-fishing having its meshes rectangularly to the direction of
draught.
Dated this 24th dow of A mouen 1000
HERBERT HADDAN & Co.,
18 Buckingham Street, Strand, London, W.C.,
Agents to Applicant.