An Improved Means of Propelling Fishing and other Small Vessels.
Year: 1885

page_text: An Improved Means of Propelling Fishing and other Small
Vessels.
I HENRY JOHN CUBITT KEYMER of the Fisheries Iron Works, Gorleston in the
county of Suffolk Engineer do hereby declare the nature of the said Invention
for AN IMPROVED MEANS OF PROPELLING FISHING AND OTHER SMALL VESSELS
to be as follows:-
The primary object of this invention is to adapt some convenient and economical
means of propulsion so as to be used on board fishing vessels in order to enable
them in calm weather to proceed to and from the fishing, when freighted with their
catch of fish or otherwise.
And this invention consists in combining with the gearing of a Capstan, such
as is described and claimed in the Specification N° 8384 (1884) or any similar
apparatus, a hollow tube supported in bearings at each end forming a guide for the
shaft of a screw propeller working at the stern end of the vessel.
The said tube is carried preferably by a saddle bracket bolted to the deck of the
vessel, into the arms of which bracket pass gudgeons fixed to the tube whereby
such bracket becomes a thrust bearing for the screw propeller.
Through the said hollow tube works a shaft attached at one end thereof to the
fly-wheel of the capstan engine crank-shaft, by means of an universal joint which
permits of the other end of the aforesaid shaft (upon which is affixed a screw
propeller) working at any desired angle.
On withdrawing a pin passing through the luggs formed upon the fly-wheel of
the engine or capstan the hollow tube carrying the shaft and propeller can be
readily detached and laid upon deck or passed into the hold of the vessel, and
replaced again as required. This arrangement in conjunction with the capstan or
steam iron man hauling apparatus will be adapted to enable the fishermen to
either steam up to their nets in case of head winds or to return to market with
fish in calm weather.
In the case of a vessel being too deep or the capstan being at too great a distance
from the stern of the vessel one or more lengths of suitable tubing and shafting
may be used or in place of the saddle bracket a flanged bush or bearing may be let

page_text: into the skin of the vessel and through the deck at the required inclination and
when the same is not required the propeller may be drawn in close to the skin of
the vessel.
}
The capstan or centre line of the propeller shaft may be placed at any desired
distance from the centre line of the vessel but must always be in a parallel line
therewith, so as to allow the rudder of the vessel to be turned on either side of
such centre of the vessel as required.
Or the propeller may be fixed in the stern-post in the usual manner for steam
vessels and be driven from the engine or steam "iron man" hauling machine by
means of suitable chain or other gearing.

page_text: An Improved Means of Propelling Fishing and other Small
Vessels.
I HENRY JOHN CUBITT KEYMER of The Fisheries Iron Works Gorleston in the
County of Suffolk 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 primary object of this Invention is to adapt some convenient and economical
means of propulsion so as to be used on board fishing vessels in order to enable
them in calm weather to proceed to and from the fishing when freighted with their
catch of fish or otherwise.
And this Invention consists in combining with the gearing of a Capstan such
as is described and claimed in the Specification N° 8884 (1884) or any similar
apparatus a hollow tube supported in bearings at each end and forming a guide for.
the shaft of a screw propeller working at the stern end of the vessel.
The said tube is carried preferably by. a suitable bracket bolted to the deck of
the vessel into the arms of which bracket gudgeons fixed to the tube are inserted
whereby such bracket becomes a thrust bearing for the screw propeller.
Through the said hollow tube works a shaft attached at one end thereof to the
fly wheel of the capstan engine crank shaft, by means of an universal joint or
spherical coupling which permits of the other end of the aforesaid shaft (upon
which is affixed a screw propeller) working at any desired angle.
On withdrawing the pin of the said spherical coupling the hollow tube carrying
the shaft and propeller can be readily detached and laid upon deck or passed into
the hold of the vessel and fitted again when required.-This arrangement in
conjunction with the capstan or steam "iron man hauling apparatus will be
adapted to enable the fishermen to either steam up to their nets in case of bead
winds or to return to market with fish in calm weather.
"
In the case of a vessel being too deep or the capstan being at too great a distance
from the stern of the vessel, one or more lengths of suitable tubing and shafting
may be used or in place of the saddle bracket a flanged bush or bearing may be let
into the skin of the vessel and through the deck at the required inclination, and
when the same is not required the propeller may be drawn in close to the skin of
the vessel.
The capstan or centre line of the propeller shaft may be placed at any desired
distance from the centre line of the vessel but must always be in a parallel line
therewith so as to allow the rudder of the vessel to be turned on either side of such
centre of the vessel as required.
Or the propeller may be fixed in the stern-post in the usual manner for steam
vessels and be driven from the engine or steam "iron man" hauling machine by
means of suitable chain or other gearing.
In order that my Invention may be fully understood I will describe it more
particularly by the aid of the accompanying Drawings in which is represented the
apparatus above referred to.

page_text: DESCRIPTION OF THE DRAWINGS.
Fig. 1 shews in elevation an engine and capstan with the apparatus connected
therewith and Fig. 2 is a plan or horizontal view of the same,
a. is the hollow tube b. the shaft connected at one end to the fly wheel or
spherical coupling c. of the crank shaft of the capstan engine by means of an
universal joint d. in order to allow of the shaft b. working at any required
inclination, which can be adjusted by withdrawing the pin f. passing through the
lugs g, h is a bearing fixed to the deck of the vessel for supporting the tube a.
On reference to the drawings it will be readily understood that when the shaft b.
is connected with the crank shaft of the engine in the manner described the vessel
will be propelled by the screw e. and that it can be readily disconnected by with-
drawing the pin f. when the tube and propeller can be laid on the deck or in any
other convenient position.
C
In the drawings I have. shewn an arrangement, with a single screw, propeller
where the crank shaft is parallel with the centre line of the vessel, but where the
crank shaft is at right angles to the said centre line two propellers may be
employed.
Having now particularly described and ascertained the nature. of my said
Invention and in what manner the same is to be performed I declare that what
I claim is:-
0
First. The combination with the gearing of a steam capstan such as that described
in the Specification of my former Patent N° 8384 (1884) or other similar apparatus
of a guide tube a supported in suitable bearings and carrying a screw propeller
shaft b connected with the crank shaft of the capstan engine in such a manner as
to admit of the ready disconnection of the propelling apparatus substantially as
and for the purpose or purposes described.
· And Secondly. The means described for connecting and disconnecting the
propelling apparatus with the steam capstan substantially as described.