Improvements in and relating to the Manufacture of Iron Fishing Nets and Oyster Dredges.
Year: 1890

page_text: Date of Application, 5th July, 1890
Complete Specification Left, 4th Apr., 1891-Accepted, 9th May, 1891
PROVISIONAL SPECIFICATION.
Improvements in and relating to the Manufacture of Iron Fishing
Nets and Oyster Dredges.
We HENRY AUGUSTUS MOORE and JOSEPH CATTELL, trading as Moore &
Cattell of Lapal Works Halesowen in the County of Worcester Manufacturers do
hereby declare the nature of this invention to be as follows:-
Hitherto it has been customary to use hand forged wrought iron cramps rings or
connecting links in the manufacture of iron fishing nets and oyster dredges, these
wrought iron cramps rings or links having to be hand forged and welded, whereby
no great degree of reliability and uniformity could be obtained in the general
construction.
The above improvements consist in the part use of wrought iron rings and part
use of malleable cast iron cramps rings or connecting links, the wrought iron rings
being threaded through the malleable cast iron ones and then welded, the substitu-
tion of these malleable cast iron cramps or rings in the place of the hand forged
wrought iron ones giving much greater uniformity and durability and being of
equal substance, and dispensing with the irregular and unreliable nature of welding
which has been found to exist in the case of the hand forged cramps or rings.
Moreover by this improved method of manufacture a better and cleaner finish is
obtainable, the net or dredger thereby being of a much neater description.
Dated this 4th day of July A.D. 1890.
EDWARD J. PAYNE & SON,
104, Colmore Row, Birmingham, Agents for the Applicants.
COMPLETE SPECIFICATION.
Improvements in and relating to the Manufacture of Iron Fishing
Nets and Oyster Dredges.
We HENRY AUGUSTUS MOORE and JOSEPH CATTELL (trading as Moore &
Cattell) both of Lapal Works Hales Owen in the County of Worcester Manu-
facturers 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, reference being had to the drawings hereunto annexed and
to the letters and figures marked thereon that is to say:
Fig. 1 shews a portion of an oyster dredge with the rings their relative size.
Fig. 2 shews the smaller rings as they will act when the dredge or net is being
drawn along.
Our invention relates to oyster dredge riggings and iron fishing nets which may
be constructed of various sizes and weight according to requirement and may be
oblong or any other desired shape.
Hitherto it has been customary to use hand forged wrought iron cramps, rings, or
connecting links, in the manufacture of iron fishing nets, and oyster dredges, these
wrought iron cramps, rings, or links, by reason of having to be hand forged and
welded, no degree of reliability or uniformity could be obtained in their
construction.
By our improvements we make the iron fishing nets, or oyster dredge riggings of
rings, or cramps, large and small, the larger ones being of wrought iron and welded
together and the smaller rings, cramps, or links, we make by casting them of
malleable iron without any weld.
A, Figs. 1 and 2 are the wrought iron rings which in the manufacture of the

page_text: iron fishing net or oyster dredge are threaded through the smaller malleable
cast iron rings, cramps, or connecting links B, and having been so thread through
the ends thereof are welded together.
The substitution of these malleable cast iron rings cramps, or links, B, in the
place of the hand forged ones are of great advantage as by reason of their being
perfectly round and uniform they are capable of revolving on their edge see Fig. 2,
during the time they are being drawn along when fishing or oyster dredging, thus
utilizing the whole circle of the ring or cramp B, equally, and thus preventing one
part from receiving more friction or wearing out more quickly than another as by
the old method the fact of all the rings or cramps being individually welded a
rough and uneven join was given where welded and so caused the opposite sides to
the weld to become worn out as the wear and friction was practically confined to
one part.
Moreover in the case of oyster dredge riggings and their manufacture there is
attached the usual net made of hemp, which forms the recipient bag for the
collection of the oysters, & by our improved dredge, riggings, consisting of the
rings, cramps, or connecting links, A. B. these bags will last far longer, for
the rings being more uniform, there exists no rough or uneven welds in the rings or
cramps, for the hempen net to chafe or rub against, as in the old kind, and by the
fact of the smaller rings B, revolving when the dredger is in motion far less strain
on all parts will be the obvious result with proportionately less friction.
The fact of the hempen net in connection with oyster dredges being preserved a
greater length of time from wearing out, is an important factor in the outfit of
oyster vessels, as very considerable expense is saved.
We wish it to be understood that we do not confine ourselves to the precise
details of manufacture herein described as the same may be varied to suit
requirements.
Having now particularly described & ascertained the nature of our said inven-
tion & in what manner the same is to be performed, we declare that what we
claim is-
The improved method of manufacturing iron fishing nets & oyster dredges in the
manner herein described or any mere equivalent thereof by the use of wrought iron
rings A, which rings are threaded through malleable cast iron rings, cramps, or
connecting links B, and are then welded, the effect of this arrangement of the
rings, or cramps, being, that a much better article, is produced and one possessing
the several advantages described in the foregoing Specification, such as great
uniformity, strength, & finish, substantially as & for the purposes set forth.
Dated this 2nd day of April A.D. 1891.
EDWARD J. PAYNE & SON,
104, Colmore Row, Birmingham, Agents for the Applicants.