Improvements in Sub-marine Signal and Search Lights for Use on Board Ship in Thick and Foggy Weather, and for Look-out Purposes.
Year: 1895

page_text: Date of Application, 2nd Apr., 1895
Complete Specification Left, 1st Jan., 1896-Accepted, 8th Feb., 1896
PROVISIONAL SPECIFICATION.
Improvements in Sub-marine Signal and Search Lights for Use on
Board Ship in Thick and Foggy Weather, and for Look-out
Purposes.
I JOSEPH CLARKSON of 18 Dawson Street, Manchester, in the County of
Lancaster, Auctioneer, do hereby declare the nature of this invention to be as
follows:-
My said invention relates to an improved method of exhibiting the usual ship
lights in thick and foggy weather and in situations where sub-marine or other
obstructions or dangers exist.
It is well known that in foggy weather the most powerful lights fail to pierce
the fog and collisions are frequent from this cause. It is also known that the
transparency or light transmitting power of the water is not materially affected by
fog or other atmospheric conditions. With these facts in view I arrange to exhibit
the ships lights beneath the surface of the water so that in thick and foggy weather
the light is transmitted sufficiently far to discover the approach of other vessels.
The arrangements and colours of my improved sub-marine lights would correspond
to those at present in use but in most cases within smaller compass. The lights
might be derived from oil or gas but electric lighting would be preferable. For
the purpose of the greater convenience and utility I would prefer to arrange the
lights in the bows of the ship and I might also have a sub-marine stern light. In
conjunction with the said sub-marine lights I would arrange a sub-marine look out
or conning aperture in the bows from which directions would be transmitted by
telegraphic or other means to the steersman; or the steering gear could be controlled
direct by the occupant of the conning chamber.
The globes or transparent receivers containing the sub-marine light would
preferably project from the bow plates so as to be discernible from different
angles.
As part of the same invention I might also use a sub-marine search light to
detect rocks or other obstructions in situations where the surroundings are uncertain,
or to show the position of mines torpedoes and other sub-marine dangers in times.
of war.
Dated this 1st day of April 1895.
E. K. DUTTON & Co.,
5 John Dalton Street, Manchester, Agents.
COMPLETE SPECIFICATION.
Improvements in Sub-marine Signal and Search Lights for Use on
Board Ship in Thick and Foggy Weather, and for Look-out
Purposes.
I JOSEPH CLARKSON of 18 Dawson Street, Manchester, in the County of
Lancaster, Auctioneer, 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 and accompanying drawings :-
My said invention relates to an improved method of exhibiting the usual ships'
Prins 17

page_text: lights or extraneous and subsidiary lights, in thick and foggy weather so as to
avert collisions with other vessels or to safeguard the ship in situations where
submarine or other obstructions or dangers exist.
It is well known that in foggy weather the most powerful lights fail to pierce
the fog and collisions and other disasters are frequent from this cause.
It is also known that the transparency or light transmitting power of water is
not materially affected by fog or other atmospheric conditions.
With these facts in view I arrange to exhibit ships' lights beneath the surface of
the water so that in thick and foggy weather the light, is transmitted sufficiently to
discover the approach of other vessels.
The arrangements and colours of my improved submarine lights might
correspond to those at present in use but in most cases arranged in smaller
compass.
In order to render my invention more clearly understood I will now refer to the
accompanying sheet of drawings in which
Fig. 1 represents the side elevation of a vessel provided with my improved
submarine lights; while Fig. 2 is a plan of the same.
In the said figs. a is a submarine head light arranged in the bows of the vessel
and placed beneath the water level as shown. In conjunction with the light a
I arrange port and starboard conning chambers bb with glazed look-out apertures.
The occupant or occupants of the look out or conning chambers bb would have
under his or their control, telegraphic or other means to transmit information or
directions to the officer on the bridge, pilot or engine room, or the steering gear
could be controlled directly by the occupant or occupants of the said conning
chamber or chambers.
In addition to the said submarine light in the bows of the vessel I might also
have a port light c, starboard light d and stern lights e e. The said port, starboard
and stern lights if thought desirable might be also used in conjunction with look
out chambers as in the case of the head light. The lights might be derived from
oil or gas but electric lighting would be preferable. The globes or transparent
receivers containing the submarine lights would preferably project from the plates
so as to be discernible from different angles. As part of my invention I might also
use a submarine search light to detect rocks or other obstructions in situations
where the soundings are uncertain, or to show the position of mines, torpedoes, and
other submarine dangers in time of war. These search lights might either be
manipulated from the indicated positions or from special search light and look out
chambers.
Having now particularly described the nature of my said invention and in
what manner the same is to be performed I declare that what I claim is.
1. The provision of sub-marine signal and search lights in the hulls of vessels,
for the purposes and substantially as described and shown.
2. The combination of submarine sigual or search lights in the hulls of vessels
with submarine glazed look-outs or conning chambers for the purposes and
substantially as described and shown.
3. The combination of the said sub-marine signal or search lights with submarine
glazed look-outs or conning chambers, the said conning chambers being furnished
with means whereby the occupant or occupants are enabled either to communicate
with those in charge of the ship or directly to control the movements of the ship,
substantially as herein before.set forth.
Dand 1.
1
D