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Патент USA US2130603

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Sept. 20, 1933.
Filed Dec. 16, 1937
Patented Sept. 20, 1938
2,130,603 '
Vincent J. Spelman, Northport, Long Island, N. Y.
Application’ December 16, 1937,»Serial No. 180,205
I 5 Claims.
(Cl. 114—211)
'5 e The present invention relates to ventilating de-,
vices and more particularly to weather-proof ven
tilators for use on ships.
, Objects and advantages of the invention will be
set forth in part hereinafter, and in part will be
obvious herefrom, or may be learned by practice.
with the invention, the same being realized and
attained by means of the instrumentalities' and
combinations pointed out in the appended claims.
The invention consists in the novel parts, con
We struction,
arrangements, combinations and im
provements herein shown and described.
The accompanying drawing, referred to herein
and constituting a part hereof, illustrates one
15. embodiment of the invention, and together with
the description, serves to explain the principles of
the invention.
Of the drawing:—
Figure 1 is a fragmentary perspective view of a
ship’s ventilator embodying the present inven
Figure 2 is a rear elevation of the embodiment
shown in Figure 1; and
Figure 3 is a fragmentary sectional view of one
of the parts shown in Figure l.
The present invention has for its object the pro
vision of a novel and improved ventilator which is
weatherproof and will exclude the entry of rain
while permitting free passage of air in either di
30 rection. A further object is the provision of a
novel and improved ship’s ventilator which can
be easily and quickly applied to conventional
types of ventilators so as to render them weather
Referring now in detail to the illustrative em
bodiment of the present invention as shown in
the ?gures of the accompanying drawing, the de
vice of the present invention is shown as applied
to a conventional type of ship’s ventilator which
comprises an upright hollow tube Ill of relatively
large diameter having a substantially vertical,
and somewhat ?ared mouth I I. As is usual, these
ventilators are used in pairs, one being adapted
to admit air to the hold, while the other is adapted
45 to permit the escape of air from the hold, and
frequently a blower or fan is provided between
them to increase the circulation of air.
With the conventional type of ventilator, con
siderable trouble is experienced in bad weather
50 when it is now necessary to- close the ventilators.
The cargo frequently fouls the air rendering it
dangerous to the men working in the hold, the
tendency to spontaneous combustion of in?am
mable cargoes is increased, and 'in extreme
55 changes of temperature, such as are encountered
on the South American runs, the volume of air
to be passed by the ventilators is too great to per
mit of their being sealed against the weather and
damage is done by sweating of the cargo. How
ever, if the ventilators are left open to the weath
er, rain can enter and cause great damage to the
According to the present invention, the mouth
ll of the ventilator tubes is covered with a piece
of material I5, such as metal or canvas which is
provided with one or more apertures l6 of rela
tively large size. On these apertures are mount
ed tapering hollow tubes ll of ?exible, waterproof
material such as canvas which project outwardly
from the apertures. These hollow tubes are pref
erably of considerablelength and weight, and due
to their» great ?exibility normally hang down from
their apertures so as to provide a long passage
way through which the air must pass in going
into the ventilator tube, thereby giving it a suf 20
?cient opportunity to settle against the sides of
the tapering tubes where it may collect and drain
off onto the outside rather than down the venti
lator tubes. Preferably, the small tubes are ta
pering, being of the smallest diameter at their 25
outer ends, so thatthe velocity of the air passing
through them is substantially diminished before
it reaches the disc-like portion I5, and this reduc
tion in velocity tends to allow more of the mist
and rain to settle from the air.
In order to facilitate the passage of air through
the tapered tubes l‘! which are sufficiently heavy
and ?exible to hang down limp, they are provided
with a plurality of interior round, hoops H! which
tend to expand and hold them in a generally cir 35
cular cross-sectional shape.
As embodied, these ,
hoops may be of metal and are sewed to the in
terior of the tapered tubes I ‘I one of the hoops
being provided at the small end while another
is provided intermediate the ends of the tapered 40
tube. None is needed at the inner end of the tube
H, as the seam between the disc aperture l6 and
the large end of the tapered tube provides a suf
?cient means for holding the tapered tube ex
The disc-like member I5 is preferably attached
to the mouth of the ventilator tube ill by means
of a harness which comprises a plurality of straps
20 fastened by gussets 2| to the outer edge of the
disc H and united in a plate 22 at the back of 50
the ventilator tube H]. An eye 23 fastened to the
plate 22 provides a means by which a rope 24 may
be tied around the neck of the ventilator tube so
as to hold the disc and its tapered tubes in proper
In bad weather, the disc and its harness is
slipped over the mouth of the ventilator tube I0,
as shown in the drawing, and air passing from
the ship’s hold tends to lift the tapered tubes I‘!
to a horizontal position so that the streams of air
are discharged horizontally. In this position, the
flow of air is su?iciently fast to prevent the entry
of rain through the narrow mouth of the tapered
tubes. On the intake ventilators, the tapered
10 tubes hang down and air is sucked in upwardly of
the tapered tubes. Only a small amount of rain
tends to enter the small mouths of the tapered
tubes, and this small amount which does enter
quickly settles against the side walls of the tapered
15 tubes, due to gravity and the lowering velocity of
the air current, and can thereafter drain down
and out of the tubes.
No attention need be given the ventilators as
the ship’s course changes or as the direction of
20 wind changes, as the tapered tubes automatically
adjust themselves for either an intake or dis
2. A ship’s ventilator having a vertically ex
tending mouth, an apertured weatherproof disc
covering said mouth, means for detachably se
curing the disc to the mouth, a relatively long and
narrow ?exible tube of weatherproof material at
tached to the aperture in said disc and extend
ing outwardly and downwardly therefrom and
means for holding the tube in expanded condi
3. A ship’s ventilator having a vertically ex
tending mouth, an apertured weatherproof disc 10
covering said mouth, a relatively long tapered
tube formed of ?exible weatherproof material
attached to the aperture and extending outwardly
and downwardly from the aperture and hoop
like meansfor holding the tube expanded for 15
the free passage of air therethrough.
4. A device for weatherproo?ng a ship’s ven
tilator including in combination an apertured
weatherproof disc to ?t over the ventilator mouth, 20
means for securing the disc to the ventilator, an
charge of air and exclude the rain during either
type of operation.
outwardly extending and depending tapered tube
The invention in its broader aspects is not
limited to the speci?c mechanisms shown and
described but departures may be made therefrom
within the scope of the accompanying claims
without departing from the principles of the in
vention and without sacri?cing its chief advan-'
formed of weatherproof canvas, and means for
holding the tapered canvas tube to a generally
circular cross sectional shape.
5. A- device for weatherproo?ng a ship’s venti
What I claim is:
1. A ship’s ventilator having a vertically ex
tending mouth, an apertured weatherproof disc
covering said mouth and a relatively long ?exible
tube of Weatherproof material attached to the
aperture in said disc and depending therefrom.
attached to the disc aperture, said tube being
lator ‘including in combination a weatherproof
disc to ?t over the ventilator mouth and having
a plurality of apertures therein, means for secur
ing the disc to the ventilator mouth, an out
wardly extending and depending tapered tube
attached to each of the apertures, said tubes being
relatively long and hoops within the tubes for
holding them expanded.
V ‘
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