Improvements in Nets for Beam Trawling and other Purposes.
Year: 1889

page_text: Date of Application, 9th Jan., 1889
Complete Specification Left 3rd Oct. 1889 Accepted 4th Jan 1890
PROVISIONAL SPECIFICATION.
Improvements in Nets for Beam Trawling and other Purposes.
I FRANCIS COMYN J.P. Landowner of 23 Torphichen Street Edinburgh N.B. do
hereby declare the nature of this invention to be as follows
The closing of the apertures by which fish are removed from nets by a cord so
looped that when the knot securing it at one end is is untied and such cord pulled each
aperture reopens the cord still remaining attached. The set of the net sideways by
which the mesh instead of closing when drawn through water open to the uttermost
(permitting the escape of immature fish) the use for a like purpose of an oblong or
other than equilateral mesh, and employment of side lines to take off strain. The
use of floats, cork or other material to keep nets extended, permitting the escape of
immature fish and preventing injury to others.
Dated this 7th day of January 1889
.
COMPLETE SPECIFICATION..
Improvements in Nets for Beam Trawling and other Purposes.
I FRANCIS, COMYN 12 Pitt Street Portobello N.B. Landowner Justice of the
Peace &c. 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 :-
These inventions relate more especially to improvements in nets for beam trawling
but are also applicable to many other purposes.
The trawl net to which they may be applied is shown in its original form in
Fig. 3.
In an improved shape (one of the improvements) in Figs. 6. 7. & 8. In
this latter form there are several entrances for fish and a flap (C) closes entrance.
This net is oblong, duplex; has no "cod" or purse end and the close netting
used in such end in ordinary nets, in this, forms the entire of the inner, or capturing,
net and entrance for fish to the outer or retaining net.
This outer net is composed of a non closing mesh; square setting oblong or
triangular Figs. 3. 4 & 5.
Square setting mesh is arrived at by mounting the net 'athwart' in relation to the
draft; or the converse of the ordinary method; oblong and triangular mesh by the
disposition of side lines F F Figs. 3. 4 & 5.
These side lines F. F. prevent the mesh from closing by taking off pressure: their
number and disposition depend on circumstances.
This limitation refers also to the H. H corks, or other buoyant matters, to be used
for keeping parts of trawl nets lifted when not in motion H. H. Fig. 3.
:
A new and improved method of closing apertures or joining things by means of
a looped and knotted cord (Figs. 1 & 2) permitting of easy instant reopening
or disjunction. The aperture is closed by a cord looped in the form of a chain
stitch.
Fig. 1. cord looped but not knotted. On pulling end K seperation ensues.
Fig. 2. cord looped and knotted union complete until knot loosened.
:
If greater security be desired a lock, block; or anything that cannot pass through
the last loop; will be fastened at or about K.
While, specially useful in closing and reopening the apertures through which fish
are removed from trawl nets this invention is applicable to many other purposes.
D

page_text: Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is.
1. Novel method of closure by means of a looped and knotted cord. Figs. 1 & 2.
2. Use of buoyant substances to keep parts of trawl nets lifted when not in
motion.
3. The employment of side lines in trawl nets.
4. The employment in the outer of such nets of netting in which the mesh sets
square; or is oblong; or triangular and placing of small mesh at entrance of inner
net A.
5. The special and improved shape & improved net shown in Figs. 6-7. 8. The
above improvements substantially as herein before described.
Dated this Eleventh day of December 1889.
F. COMYN,
12, Pitt Street, Portobello, N.B.