Improvements relating to the Ventilation of Ships or Vessels.
Year: 1891

page_text: Date of Application, 5th June, 1891
Complete Specification Left, 7th Mar., 1892-Accepted, 9th Apr., 1892
PROVISIONAL SPECIFICATION.
Improvements relating to the Ventilation of Ships or Vessels.
I WILLIAM THOMAS SUGG of Vincent Street in the City of Westminster,
Engineer do hereby declare the nature of this invention to be as follows:-
The chief object of this invention is to provide means for ventilating the interior
of torpedo boats or other places where the air inlet and outlet are likely to be
subjected to the influx of water.
Great difficulty has been experienced in supplying air to the interior of torpedo
boats when at sea as the vessels are so low in the water that when the sea is at all
rough they are more or less submerged.
In carrying out my invention as applied to the ventilation of a torpedo boat |
employ what I termn an updraught shaft and a downdraught shaft which I arrange
one on either side of the vessel.
To the updraught shaft I attach a cowl provided with a balanced valve and
constructed substantially in the manner described in the Specification of Letters
Patent granted to me and dated 25th January 1890 No. 1346.
The upper end of the down shaft which extends some distance above the deck I
enclose in a cylinder slightly longer than the upwardly extending portion of the
shaft and of larger diameter.
The open end of this cylinder I close by a rounded cover of larger diameter than
the cylinder and the under side of that part which extends beyond the cylinder I
pierce with a number of holes.
The
Above the inlet I adapt a valve preferably of disc form with an upwardly turned
rim or flange which valve is mounted on a rod secured to one end of a lever having
its fulcrum on a rod carried by the cover and a weight at the other end.
weight will be heavy enough to keep the valve raised in its normal condition but
allow it to close down under the influence of the weight of any water that may
enter the cowl and collect on the top of the valve.
Holes will also be formed near the bottom of the outer cylinder or case to allow
water to run out.
Under normal conditions the action of the updraught cowl will produce a vacuum
and will draw the vitiated air out while fresh air will enter by the downdraught
cowl, the valves in each case closing under the weight of water that may enter
either cowl.
Dated this 5th day of June 1891.
NEWTON & SON,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements relating to the Ventilation of Ships or Vessels.
WILLIAM THOMAS SUGG of Vincent Street in the City of Westminster,
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 object of this invention is to provide means for ventilating the interior of
torpedo boats, or other places where the air inlet and outlet are likely to be subject
to the influx of water.
Great difficulty has been experienced in supplying air to the interior of torpedo
boats when at sea, as the vessels, from the nature of the craft, are so low in the
water, that when the sea is at all rough, they are more or less submerged.
In carrying out my invention, as applied to the ventilation of a torpedo boat, I

page_text: employ what I term an updraught shaft and a downdraught shaft, which I arrange
one on either side of the vessel.
To the up-draught shaft I attach a cowl provided with a balanced valve, and
constructed substantially in the manner described in the Specification of Letters
Patent granted to me and dated 25th January 1890, No. 1346.
The upper end of the down shaft, which extends some distance above the deck, I
enclose in a cylinder slightly longer than the upwardly extending portion of the
shaft, and of larger diameter.
The open end of this cylinder close by a domed cover of larger diameter than
the cylinder, the lower edge or base being turned inwards, and secured to the
cylinder, that part which extends beyond the cylinders being pierced with a number
of holes.
Above the inlet I adapt a valve, preferably of disc form, with an upwardly-
turned rim or flange, which valve is mounted on a rod secured to one end of a lever
having its fulcrum on a bracket carried by the cover, a weight being at the other
end of the lever. The weight will be heavy enough to keep the valve raised in its
normal condition, but allow it to close down under the influence of the weight of
any water that may enter the cowl and collect in the top of the valve.
Holes will also be formed, near the bottom of the outer cylinder or case, to allow
water to run out.
Under normal conditions, the action of the updraught cowl will produce a vacuum
in the ventilating tube, and will draw the vitiated air out of the vessel, while fresh
air will enter by the downdraught cowl, the valves in each case closing under the
weight of water that may enter either cowl.
In the accompanying drawing,
Figs. 1 represents the up-draught apparatus, and Figs. 2 the down-draught
apparatus.
A is the updraught shaft, which is securely fixed, so as to be water tight, to the
deck of the vessel, and is enclosed within a cylinder B, of greater diameter and
length. This cylinder B has a cover C, into which a number of short tubes D are
inserted, and at a short distance above the mouth of the tubes a hollow deflector,
flat on its underside, is firmly secured. The shaft. A is provided with a counter-
weighted valve. The general construction and operation of this apparatus is the
same as described in the Patent No. 1346 of 1890 before referred to.
E is the downdraught shaft, which is of greater length than the shaft A. This
shaft E is enclosed within a cylinder F, provided with a domed cover G, the base
of which is turned inwards, and secured to the cylinder F.
In the turned-under portion, I pierce a number of holes for the entrance of air.
The shaft E may have a cover consisting of a disc with a peripherical rim or
flange, fixed a short distance above the end of the shaft, or moveable, as shown in
Fig. 2.
In any case, as the ventilating apparatus will be subjected to considerable
pressure from the waves, it is necessary that all the parts should be firmly secured
together by strong stays, and to the deck of the vessel.
The bottom of the cylinder F will have a number of holes to permit of the egress
of water, and the cylinder B will be provided with automatic valves for the same
purpose.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
:-
The means substantially as herein shown and described for ventilating the interior
of ships and vessels.
Dated this 7th day of March 1905
NEWTON & SON,
Agents for the Applicant: