Improvements in the Construction of Gangway Rollers, specially applicable to Steam Trawlers.
Year: 1891

page_text: Date of Application, 14th Dec., 1891
Complete Specification Left, 16th June, 1892-Accepted, 16th July, 1892
PROVISIONAL SPECIFICATION.
Improvements in the Construction of Gangway Rollers, specially
applicable to Steam Trawlers.
I THOMAS SUDRON of 9 Castle Street, Hull in the County of York Engineer
do hereby declare the nature of this invention to be as follows:-
The object of my invention is to construct a gangway roller which shall
prevent the fraying, wearing or otherwise damaging of the warp used for fishing
purposes, and is specially applicable to steam trawlers.
I attain this object by employing a metal casting or frame, in which are fixed
suitable rollers, and a disc, which revolve, so that the warp or rope will be constantly
on one of the rollers, thereby saving wearing, fraying or damaging of the warp or
rope.
The said frame or casting is square, and has three sides flanged for bolting or
attaching by any suitable means to the vessel's bulwarks; in each corner of the
square casting or frame I employ an iron, steel, or other metal roller which revolves
on a bolt or pin which passes through from the front to the back of the said casting
or frame.
In this frame I employ a circular disc which fits within the frame and revolves.
within the outer rollers within the said disc are employed four or more iron, steel,
or other metal rollers or pulleys which revolve on pins let into the disc, by this
means whatever position the trawl net is in, by the disc revolving, each roller will
conform itself to the position of the trawl warp or rope.
At the back of the frame I bolt or otherwise attach a loose thrust plate to the
said frame, for the purpose of keeping the disc and the outer rollers in position and.
on the front I also attach four triangular metal blocks which are placed between
the inner rollers, and so hold them in position.
By this improved construction of gangway roller there is a great saving of the
warp or rope for fishing, as whereever the greatest strain the disc revolves and the
warp slips from one roller or pulley to another thus being continually on a roller or
pulley, and consequently there is no undue wearing or fraying.
Dated this Twolfth day of December 189I
JOHN E. WALSH,
Crossley Street, Halifax, and Saville Street, Hull,
Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in the Construction of Gangway Rollers, specially
applicable to Steam Trawlers.
I THOMAS SUDRON of 9 Castle Street, Hull in the County of York, 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 :-
The object of my invention is to construct a gangway roller which shall prevent
the fraying, wearing or otherwise damaging of the warp used for fishing purposes
and is specially applicable to steam trawlers.

page_text: Fig. 2. is a section of Fig. 1 through the line A. B.
Fig. 3. is a front elevation showing the antifriction rollers pivotted upon the disc
and bearing against the inside periphery of the annular disc of the frame.
I attain this object by employing a metal casting or frame C. in which are fixed
suitable antifriction runners D, and an annular disc E, which can revolve, so that
the warp or rope will be constantly on one of the rollers F. fixed upon the disc;
thereby saving wearing, fraying or damaging of the warp or rope.
The said frame or casting is square and has three sides G. flanged for bolting or
attaching by any suitable means to the vessel's bulwarks or sides near each corner
of the square casting or frame. I fix the iron, steel or other metal roller or anti-
friction runner D, which revolve on a bolt or pin H, which passes through from the
front to the back of the said casting.
In this frame is the circular disc E, which fits within the frame and revolves
within the antifriction runners D.
Or see Fig. 3. within the said disc E. I fix the iron, steel, or other metal anti-
friction runners D. which revolve on pins let into the disc and bear upon the inside
periphery of the annular disc of the frame by this means whatever position the
trawl net is in (by the disc revolving) each outer roller will conform itself to the
position of the trawl warp or rope.
At the back of the frame C I bolt or otherwise attach a loose thrust plate. to
the said frame for the purpose of keeping the disc E and the outer rollers F in
position, and on the front I also attach four triangular metal blocks check or
loose plates K, which are placed between each of the inner rollers F, and so hold
them in position.
By this improved construction of gangway roller there is a great saving of
the warp or rope for fishing, as wherever the greatest strain is, the disc
revolves and adjusts itself to the position of the warp, the warp thus being always
fair upon one or other roller, and consequently there is no undue wearing or
fraying.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed, I would have it understood
that do not limit myself to the exact construction of frame and rollers, or to the
number of rollers and runners employed, but I declare that what I claim is:-
1. Gangway rollers so mounted and arranged in a frame as to adjust themselves
to any position of the trawl warp or rope, so as to prevent undue wearing, such as
shown and described.
2. The combination of the frame C, gangway rollers F, fixed or loose plates K,
disc E, antifriction runners D, either upon the frame or disc substantially as shown
and described.
Dated this Fifteenth day of June 1892.
JOHN E. WALSH,
Of Saville Street, Hull, and Crossley Street, Halifax,
Patent Agent for the Applicant.