Improvements in Trawl Gangways.
Year: 1896

page_text: Date of Application, 23rd Mar., 1896-Accepted, 25th Apr., 1896
COMPLETE SPECIFICATION.
Improvements in Trawl Gangways.
ARTHUR JEFFS, of Glen Lyn, Grimsby, in the County of Lincoln, Steam
Trawler Owuer and Fish Salesman, 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 invention relates to improvements in trawl gangways, which are fitted to
steam trawlers, or any other fishing craft, to allow the trawl warp to run inboard
& outboard when heaving in or shooting the trawl.
Now the object of my invention is to so construct the trawl gangway, that the
steel trawl warp shall not cut the frame of the gangway or ship's side, thus
dispensing with chafing bars, & also giving additional life to the warp.
Also
to construct the gangway with a horizontal roller and two interchangeable vertical
rollers, so that the gangway may be used either on the port or starboard side of the
vessel, as may be most convenient.
In carrying out my invention, instead of placing the horizontal roller of the
gangway at the bottom of the frame, I raise it well up, so that the top of the
roller is about the mid height of the vertical rollers, and stands at inner side of
bulwarks & vertical rollers. I make the vertical rollers of large diameter, to stand
well within the bulwarks, but also projecting sufficiently outside the bulwarks, to
prevent the trawl warp cutting the gangway frame or ship side.
To enable my invention to be fully understood I describe the same by reference
to the accompanying drawing in which :-
Figure 1 is a side elevation of the trawl gangway. a represents the frame of the
gangway, which may be made of cast iron, steel or any suitable metal. b, is the
horizontal roller, working on a spindle c, carried by loose brackets, or by brackets
which are cast on the frame as shewn on the drawing. The spindle c, is secured
by through pins at each end.
Figure 2 is a front elevation of the trawl gangway. d, d, are the vertical
rollers, held in position by bolts e, e, having squares forged at their lower
extremities, & fitting in square holes in the frame casting, to prevent their
turning round with the rollers. b is the horizontal roller. f, f, f, are bolt
holes for securing the frame a to the bulwarks or other suitable position on the
vessel.
Figure 3 is a plan of Figure 2.
Having now particularly described & ascertained the nature of my inven-
tion, and in what manner the same is to be performed, I hereby declare that
what I claim is :-
1. In constructing trawl gangways, so that the wire warp shall not cut the
gangway frame or ship side, substantially as & for the purposes described.
2. Improved trawl gangways, with vertical and horizontal rollers, suitable for
fixing to either side of the vessel and for use either with beam or other trawls,
substantially as & for the purposes described.
TD21

page_text: 3. Improved trawl gangways with horizontal roller lead about mid height of
bulwarks, substantially as & for the purposes described.
4. The combination of the parts constituting improved trawl gangways as shewn
and described.
Deted this 291st day of March 1900
ARTHUR JEFFS.