An Improved Trawl Gangway-frame for Steam Fishing Vessels.
Year: 1893

page_text: Date of Application, 15th June, 1893
Complete Specification Left, 1st Mar., 1894-Accepted, 7th Apr., 1894
PROVISIONAL SPECIFICATION.
An Improved Trawl Gangway-frame for Steam Fishing Vessels.
I WALTER JAS. WOOD of 200 Hainton Street Great Grimsby Superintendent
Marine Engineer, do hereby declare the nature of this invention to be as
follows:-
This frame is so constructed that it will not break by the strains it is subjected
to in consequence of the vibration of the bulwarks (to which it is attached) caused
by the friction of the trawl warp, and the shocks received in working the vessels
about crowded docks.
(1) The frame being in two parts divided at A as in Fig. 1, each half is free to
move with the part of the bulwarks to which it is attached also
:
(2) The horizontal roller D revolving on its spindle C, loosely dropped into
position in the spaces B, does not bind the frame in any way but allows it to vibrate
with the bulwarks, thus preventing breakage.
My invention lies in the form of the frame of the gangway or trawl port, and the
method of fitting the horizontal roller D, the whole forming a cheap trawl gangway
frame which is better able to withstand the shocks it is subject to, than any form
now in use, to the best of my knowledge.
The drawing Fig. 1 is a back elevation showing the cast iron or steel frame in
two parts separable and loosely bolted together at A. Fig. 2 is an end elevation
showing that the spindle C on which the horizontal roller D revolves, by being
simply dropped into position in the space B does not in any way bind the two parts
of the frame together; thus each half is free to 'give' to the shocks the bulwarks
sustain, and in the event of one half being broken by an unusually severe blow it
can be easily and cheaply replaced by another similar part, without condemning the
whole frame.
Dated this 8th day of July 1802
WALT. J. WOOD.
COMPLETE SPECIFICATION.
An Improved Trawl Gangway-frame for Steam Fishing Vessels.
I, WALTER JAMES WOOD, of 200 Hainton Street, Grimsby, in the County of
Lincolnshire, Marine Engineer, 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:-
My improved trawl gangway frame consists of a simply constructed frame of cast
iron, steel, or malleable iron, holding in position the rollers over which the steel
warp runs when heaving in the trawl fishing gear.
Referring to the drawings left with the Provisional Specification, the front
elevation Fig. 1 shews that the frame is in two halves separable at, and loosely
bolted together at A. The horizontal or fore and aft roller D revolves on the
spindle or pin C, which is not supported in a fitted hole or bearing at the ends, but
(lying loosely in the slots or spaces B, B, as shewn in the end elevation Fig. 2), is
held in position by its own weight and therefore does not in any way hold the
frames together.
The gangway is used for passing the wire warp through when heaving in the
fishing gear by the steam winch, and is consequently fitted to the bulwarks on each

page_text: side of the ship in the broadest part of the beam. Being in such exposed positions
the gangways are necessarily subjected to very severe shocks when working the
vessels through crowded docks, and also to great strains in consequence of the
vibration of the bulwarks when heaving in the heavy trawl beam and gear at sea;
and are often broken. In my improved gangway frame the dangers of breakage
are much lessened by the frame being in two halves, and by the horizontal roller D
being so fitted as to allow each half to vibrate independently, thus yielding to the
strains sustained by the bulwarks on one or both sides of the frame. In the event
of one side of the frame being broken by an unusually severe shock, it may be very
quickly and cheaply replaced by another similar part.
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. That I have made an improvement by constructing the frame in two halves
as shewn at A Fig. 1.
2. That I bave made an improvement also by fitting the horizontal roller D in
the manner described and shewn, in Fig. 2 at B and C.
3. That the above improvements render the apparatus a simple, cheap, and almost
unbreakable gangway frame or trawl port.
Dated this 28th day of February 1894. ·
VALTER JAMES WOOD.