An Improved Gangway Roller or Trawl Port for Steam Trawlers and other Fishing Vessels.
Year: 1894

page_text: Date of Application, 16th May, 1894
Complete Specification Left, 30th Jan., 1895-4ccepted, 16th Mar. 1895
PROVISIONAL SPECIFICATION.
An Improved Gangway Roller or Trawl Port for Steam Trawlers
and other Fishing Vessels.
We, THE BOSTON DEEP SEA FISHING AND ICE COMPANY, LIMITED, of
The Dock, Boston, Lincolnshire, Steam Trawling Owners and Engineers, an
GEORGE PALMER, of Skirbeck, Boston, Lincoln, Engineer, do hereby declare the
nature of our said invention to be as follows:-
The object of our invention is to fit the trawl ports of steam trawlers and other
fishing vessels with improved roller gear to facilitate the passage of the trawl
warp:
A cast iron frame is fitted to the port. A horizontal roller is fitted on the
inboard side of this frame. This roller is deeply grooved, having a brass liner or
bush, and running on a steel pin. On the outboard side of the frame two vertical
rollers are fitted, also bushed with brass and running on still pins. The vertical
rollers have curved shoulders, and are placed at a suitable distance apart to allow
the warp to run to the horizontal roller. The pins are drilled centrally and tapped
for couvenience in lifting the pius out, when required, and to form oil holes for
lubricating the pins and rollers. The curve of the groove round the horizontal
roller, and the curves of the shoulders of the vertical rollers are parts of a
corresponding circle, whereby sharp corners are entirely avoided, and the warp
has always a fair lead. The top of the frame is left open to pass the trawl
warp through. When the fair-lead bollard is not in a line with the trawl port,
the frame is fitted with an inside guide roller.
Dated 16th May 1894.
GEO.
DOWNING,
8, Quality Court, London, W.C., Agent.
An Improved Gangway Roller or Trawl Port for Steam Trawlers
and other Fishing Vessels.
We, THE BOSTON DEEP SEA FISHING AND ICE COMPANY LIMITED, of
The Dock, Boston, Lincolnshire, Steam Trawling Owners, and Engineers, and
GEORGE PALMER, of Skirbeck, Boston, Lincolnshire, Engineer, do hereby
declare the nature of our said 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 our invention is to fit the. trawl ports of steam trawlers and
other fishing vessels with improved, roller gear to facilitate the passage of the
trawl warp.
According to our invention, a cast iron frame is fitted to the port. A horizontal
roller is fitted on the inboard side of this frame. The roller is deeply grooved,
having a brass liner or bush, and running on a steel pin. On the outboard side of
the frame two vertical rollers are fitted, also bushed with brass and running on
steel pins. The vertical rollers have curved shoulders, and are placed at a suitable

page_text: distance apart to allow the warp to run to the horizontal roller. The pins are
drilled centrally and tapped for convenience in lifting the pins out, when required,
and to form oil holes for lubricating the pins and rollers. The lower extremities
of these pins are preferably formed square to prevent the same from revolving.
The curve of the groove round the horizontal roller, and the curves of the
shoulders of the vertical rollers are parts of a corresponding circle, whereby
sharp corners are entirely avoided, and the warp has always a fair lead.
The top of the frame is left open to pass the trawl warp through.
When the fair-lead bollard is not in a line with the trawl port, the frame is fitted
with an inside guide roller.
And in order that our said invention may be particularly described and
ascertained, reference is hereby made to the accompanying drawings, in which
similar letters of reference indicate corresponding parts.
Fig. 1 is a front view, Fig. 2 a side view, and Fig. 3 is a back view of our
improved gangway roller or trawl port.
a is the frame cast with strengthening ribs and sockets or bearings as shown.
b is the horizontal roller running on a pin c which is prevented from revolving by
the cotter pin d inserted through the end of the pin c. e, e are the vertical rollers
mounted on pins ff, the lower ends of which are preferably formed square fitting
square sockets to prevent the pins revolving. The pins are drilled out as previously
described and form oil ways for lubricating purposes.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is-
1. In gangway rollers or trawl ports for steam trawlers and other fishing vessels,
(the combination of a frame a carrying a deeply grooved horizontal roller b and the
vertical rollers e e, constructed and operating substantially as herein before
described and illustrated by the drawings.
2. The improved gangway roller or trawl port for steam trawlers and other
fishing vessels, substantially as described.
Dated 24th Jannery 1805
GEO.
DOWNING,
8, Quality Court, London, W.C., Agent.