Improvements in Apparatus for Lighting and Ventilating Ships' Cabins and other places.
Year: 1890

page_text: Date of Application, 24th May, 1890
Complete Specification Left, 24th Feb., 1891-Accepted, 25th Apr., 1891
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Lighting and Ventilating Ships'
Cabins and other places.
We, EDWIN JAMES PRESTON, of the firm of J. Stone and Company, of Deptford,
in the County of Kent, Engineers, and EDWIN WILLIAM DE RUSETT, of 2, Fell
Road, Croydon, in the County of Surrey, Civil Engineer, do hereby declare the
nature of this invention to be as follows:-
The object of this invention is to provide light and ventilation on board ship and
in other places where direct light and fresh air are not easily obtainable, and this
invention is of special advantage in connection with so-called inner cabins which in
large vessels are situated below a deckhouse. For this purpose we provide a hollow
casting with an oval or other opening or openings in its upper part for admitting air
to the cabin to be ventilated, which air by suitable passages, say one at each end,
or between the oval openings is conducted into the cabin; in the case of being fitted
to a deckhouse the apparatus would be by preference applied in the coamings of
the same opening into a hood or casing communicating with the cabin below.
In order to prevent inlet of water we fit the passages with self-acting float valves
or with valves operated from the cabin. We also provide the casting with pris-
matic or other glazing to give direct and yet give an increased supply of light,
without obscuring the glass. We so arrange the openings communicating with the
float valves that water may freely get away should it find its way into these
openings or if a portion passes the valve or valves it may flow back when the
pressure on the valve from the water is relieved.
Dated this 24th day of May 1890.
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.
COMPLETE SPECIFICATION.
Improvements in Apparatus for Lighting and Ventilating Ships'
Cabins and other places.
We, EDWIN JAMES PRESTON, of the firm of J. Stone & Company, of Deptford,
in the County of Kent, Engineers, and EDWIN WILLIAM DE RUSETT, now of
Warden House, Percy Park Road, Tynemouth, in the County of Northumber-
land, but late of 2, Fell Road, Croydon, in the County of Surrey, Civil 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 light and ventilation on board ship and
in other places where direct light and fresh air are not easily obtainable, and this
invention is of special advantage in connection with so-called inner cabins which in
large vessels are situated below a deckhouse. For this purpose we provide a hollow
casting with an opening or openings in its upper part for admitting air to the cabin
to be ventilated, which air by suitable passages, say one at each end, or between
the openings, is conducted into the cabin; in a casting with openings at each end,
one of them may serve as an inlet valve for the supply of fresh air to the cabin and
the other as an outlet valve for the escape of impure air. When fitted to a deck-
house the apparatus would be by preference applied in the coamings of the same
opening into a hood, or casing communicating with the cabin below. In order to
prevent inlet of water, we fit the passages with self-acting float valves or with
ID 1171
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page_text: valves operated from the cabin. We also provide the casting with prismatic or
other glazing, to give direct, and also an increased supply of light, without obscuring
the glass. We so arrange the openings communicating with the float valves that
water may freely flow back, should it find its way into these openings, or if a portion
passes the valve or valves, it may flow back when the pressure on the valve from the
water is relieved.
Fig. 1 of the accompanying drawings is a part sectional elevation Fig. 2 a trans-
verse section and Fig. 3 a half plan and half horizontal section of a combined
ventilator and light, in Fig. 2 shown for application to the coaming of a deckhouse
in a large vessel for the purpose of conducting light and air to a so-called "inner
cabin situated below such deckhouse. The apparatus is a hollow, by preference
tapered, box shaped casting which in this instance is bolted to the coamings A of
the deckhouse, opening into a hood or casing communicating with the "inner
cabin" below. This hood or casing is not shown on the drawing because in almost
every instance the form thereof would differ as it would be so constructed as to
come underneath or form a seat or settee in the deckhouse or other structure in
order to economise space.
The air for ventilating the "inner cabin" below enters the lateral port G passing
from thence to the opening B by the upper passage D by grating D' and the end
passages E by grating E'. The gratings D' and E' serve to partly stop the rush
of water up the ventilator. The light enters the port G chiefly by the prismatic
(or plain) oval "light" F which is held in place by a frame F¹. The openings B
are at each end provided with leather or other suitable seating B2 held in place by
a brass or other frame B' for a hollow or other float valve C to seat itself against
and close the air inlet B in case of water entering and floating the valve C up to
its seat. The hood or casing aforementioned may under some circumstances be
divided in such manner that the fresh air coming in by one of the openings B will
not interfere with the other current of air which escapes from the cabin by the
other opening B.
Figs. 4, 5, 6, 7, 8 and 84 are half sectional elevations of modified forms. In
Fig. 4 the float valve C is about half spherical and jointed to a fork lever C₁,
while the air enters from the port G by two lateral openings E only, the whole
arrangement being of a cheaper and simpler character. Fig. 5 is similar to
Fig. 1 but the ball valve C is mounted on the end of a curved pivoted stem or
lever C. Fig. 6 again is a simple form like Fig. 4 but with the half spherical
valve mounted on a lever C₁ as in Fig. 5. In Fig. 7 we shew a simple form
of apparatus like Fig. 4, but with a cylindrical float valve C guided on a vertical
fixed stem C¹. Fig. 8 shews a similar form but with a spherical valve C resting
in the cup shaped end of a spindle C¹ which passes out through a stuffing box
and by cord Cx guided by pulleys C C can be moved from the inner cabin so as
to close or open the float valve C as desired. In Fig. 84 we show a flap valve C₁
fitting on a seating or lip over the opening which may be opened or closed from
cabin, irrespective of the ball or other valve C.
Figs. 9 to 12 shew simplified forms of our combined ventilator and light. Fig. 9
is a front view and Fig. 10 a vertical cross section of an arrangement with a hinged
flap valve C which by lever C¹ and cord Cx can be opened or shut as desired, from
the cabin. In the vertical cross sections Figs. 11 and 12 we shew two other forms
of valve C, which is preferably, as shown, provided with small india-rubber stops n
to protect it against being bent if it happens to be allowed to drop violently against
the side of the casting.
The curved guard F shewn in some of the figures serves as a drip tray in case of
any leakage or condensation on the surface of the glass.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is :-
1. A combined ventilator and "light" for "inner cabins " and other structures

page_text: a
consisting of a box shaped casting having a port for the passage of air which is
connected to another passage or other passages capable of being opened or closed
by a valve or valves and communicating to the cabin by an opening formed by
casing or hood wholly or partly surrounding the ventilator, the back of the casting
being provided with a glazed prismatic or "plain" side for the admission of light
substantially as set forth.
2. The combined ventilator and light described with reference to Figs. 1, 2, 3
and 5.
3.
The combined ventilator and light described with reference to Figs. 4, 6,
7, 8 and 84.
4. The combined ventilator and light described with reference to Figs. 9, 10, 11
and 12.
5. The general arrangement and construction of parts of apparatus for lighting
and ventilating ships' cabins, and other places substantially as described and
shewn.
Dated this 24th day of February 1801
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.