IMPROVEMENTS IN APPARATUS FOR VENTILATING MARINE VESSELS to be as follows:
Year: 1884

page_text: I, ALEXANDER MELVILLE CLARK, of the firm of A. M. and Wm. Clark,, of
53, Chancery Lane, in the County of Middlesex, Fellow of the Institute of Patent
Agents, do hereby declare the nature of the said Invention for "IMPROVEMENTS
IN APPARATUS FOR VENTILATING MARINE VESSELS to be as follows:-
"
This Invention relates to means for ventilating ships or vessels, and consists in
the combination with a furnace of a series of pipes extending from the several
compartments in the vessel to the furnace for the purpose of conducting all the
foul and impure air in the several compartments into the furnace.
The furnace is provided with a smoke stack of suitable construction which if
desired can be connected with a suction blower or long funnel to increase the draft.
The furnace is closed perfectly at the bottom and the coal doors etc made to
fit very closely so that no air can pass into the furnace except through the pipes
provided for this purpose, and which extend from below the fire-grate to the
different rooms, cabins, holds and compartments of the vessel.
The fire in the furnace causes a draught and as no air can enter the furnace
except through the pipes, great suction will be produced in these pipes, and all the
foul and impure air in the several parts of the ship will be drawn into the furnace
and fresh air will naturally pass into the several compartments through means
provided for this purpose and thus occupy the place of the exhausted foul air.
The ends of the pipes are closed by gratings or screens to prevent the hot
coals etc from dropping into the pipes.
This device can be applied in all marine vessels but is especially adapted for
steamers as the furnace of the boiler can then be used for the ventilating purposes.
In sailing vessels a special boiler would have to be provided.
Dated this 27th day of June A.D. 1884.

page_text: I, ALEXANDER MELVILLE CLARK, of the firm of A. M. and Wm. Clark, of
53, Chancery Lane, in the County of Middlesex, Fellow of the Institute of Patent
Agents, do hereby declare the nature of the said Invention for "IMPROVEMENTS
IN APPARATUS FOR VENTILATING MARINE VESSELS" 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 this invention is to provide a new and improved system of
ventilation for marine vessels whereby the said vessels can be ventilated very
-thoroughly at a comparatively small cost..
This Invention consists in the combination with a furnace of a series of pipes
extending from the several compartments in the vessel to the furnace for the
purpose of conducting all the foul and impuro air in the several compartments
into the furnace.
Reference is to be had to the accompanying drawings forming part of this
specification in which the system of ventilation is shown.
A furnace A is provided with a smoke stack B of some suitable construction
which if desired can be connected with a suction blower or long funnel to increase
the draft. The furnace is closed perfectly at the bottom and the coal doors etc
made to fit very closely so that no air can pass into the furnace except through the
pipes C provided for this purpose.
These pipes C extend to the different rooms cabins, holds and compartments of
the vessel.
The fire in the furnace causes a draft and as no air can enter the furnace except
through the pipes C great suction will be produced in these pipes and all the foul
and impure air in the several parts of the ship will be drawn into the furnace and
fresh air will naturally pass into the several compartments, through means provided
for this purpose and thus occupy the place of the exhausted foul air. The vessel
will thus be ventilated thoroughly. The ends of the pipes C must be closed by
gratings or screens D, to prevent the hot coals etc from dropping into the pipes.
This device can be applied in all marine vessels but is especially adapted for
steamers as the furnace of the boiler can then be used for the ventilating purposes.
In sailing vessels a special boiler would have to be provided.
Having now particularly described and ascertained the nature of the said
Invention and in what manner the same is to be performed I declare that what
I claim is
1 The furnace with its fire chamber wholly cut off from the immediate
surrounding atmosphere, and having a central, upper draft and smoke flue in
combination with the pipes leading from compartments of the vessel connecting
with said furnace below its fire-grate, substantially as and for the purpose set
forth.
2nd The furnace with its firechamber wholly cut off from the immediate
surrounding atmosphere and having a central, upper draft and smoke flue in

page_text: combination with the pipes leading from compartments of the vessel and connecting.
with the furnace below the fire grate, said pipes being provided with screens at
their points of connection with the furnace substantially as and for the purposes
set forth.