Year: 1886

page_text: I ALFRED JULIUS BOULT of 323 High Holborn in the County of Middlesex,
Engineer do hereby declare the nature of this invention (a communication from
Charles Cluthe of Toronto, Canada, Manufacturer) 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 the invention is to design a simply adjusted ventilator which will
draw off the foul air without producing any appreciable draft within the
apartment; and it consists essentially of a hollow casing suspended from the
ceiling of the car and having a series of openings around its base leading into a
chamber formed within the casing and which chamber has a horizontal partition
extending across the full width of the chamber, but leaving an open space at either
end, so that the air entering the holes in the base of the case must pass around
either one end or the other of the partition in order to reach the upper portion of
the chamber from which it escapes through a revolving ventilator placed on the
roof of the car, the whole being arranged and operating substantially as hereinafter
more particularly explained.
Figure 1 is an outside elevation of this improved ventilator applied to a rail-
road carriage.
Figure 2 is an end view of same.
Figure 3 is a sectional side view,
Figure is a perspective sectional detail, showing partition and doors.
Figure 5 is a detail of bracket G.
Figure 6 is a sectional view of this ventilator.
:
In the drawings like letters of reference indicate corresponding parts in each
figure.
For illustrating this invention I have chosen its application to a rail-road
carriage, but of course it will be understood that this ventilator will be of great
value for ventilating all kinds of apartments.

page_text: A represents the roof of the carriage, and B the casing within which the
ventilating chamber is formed.
It will be noticed that the base of the casing B is utilized for the support of the
lamps C, which are fed with oil from the reservoir D contained within the casing.
A series of ornamental openings a are made around and through the base of the
casing B, the bottom, b of which is closed.
E is a bolt or rod extending from the bottom b to the top of the revolving
ventilator F a nut d being screwed onto each end of the rod È as indicated so as
to support the bottom b and hold the revolving ventilator F in position.
A suitable bracket G is supported on the roof A and has a bearing-collar e
formed on its top to receive the bearing-collar f attached to or forming part of the
sleeve g to which the ventilator F is. attached. An oil-cup h is attached to the
sleeve so that the bearing between the two collars e and f may be kept
constantly lubricated.
H is a horizontal partition extending across the full width of the casing B but
stopping short of the full length of the said casing, the ends of the partition being
curved as indicated for the purpose hereinafter specified and the casing B is curved
inwardly at both ends i so as to form a break in the air passage at each end of the
casing between its base and the upper portion of the chamber formed therein.
As I have said the ends of the partition H are bent upwardly and it will be
noticed that they extend beyond the curved end i. The portion of the chamber in
the casing B above the partition H is divided by the diagonal partition I (see
Figure 4) so that the rear of the chamber is separated from its forward portion, so
that the upward draft through the casing enters in two divisions into the
revolving ventilator F.
A hinged door J is placed on each side of the partition I, the hinges or spindles
of the said doors being connected together so that the two may be opened and
closed simultaneously. This is effected preferably by extending one of the
. spindles K to the bottom of the casing B and placing a handle on the said
spindle K. A horizontal rod L extends across the casing and is provided with
worms m, and engage with the worm pinions, n placed upon and attached to the
spindles K of the doors J. In this way the doors may be opened and closed
simultaneously, and the opening in the casing increased, decreased, or cut off
altogether as circumstances require.
Although I do not wish to confine myself to the peculiarly shaped ventilator F,
I shall proceed to describe briefly the construction, reserving to myself the right
to alter this ventilating device by the substitution of some other form of the
revolving portion of it. The ventilator F, consists of a hollow ball with an open
bottom which fits immediately over the centre opening of the casing B an opening
is also formed in the side of F with flanges q on either side of its opening.
In order to explain the effect of this improved ventilator I may mention that if
a ventilator F, was placed over a hole made in the top of the car an upward
current would make a disagreeable and otherwise objectionable draft within the
apartment, and it is to prevent this disagreeable draft that this invention is
specially designed.
On reference to Figure 3, it will be seen that the air which enters the openings, a
will naturally be drawn towards the ventilator, but is first checked by impinging
against the bottom of the partition H, and is also checked in passing around the
curved ends and is further checked by the doors J, which may be fully or
partially opened according to the strength of the upward current desired, the
partition I, effectually separating the two upward, currents, which finally escape
through the revolving ventilator F.
In order to prevent cinders entering into the casing B, I sometimes place a
.netting over the opening between the said casing and the revolving ventilator F.
If this screen is not placed in the position stated, any cinders entering the
ventilator F, will drop down on the partition H, the curved ends of which prevent

page_text: them falling through. But in the event of a large accumulation of cinders which
might fall over the said ends the cinders so falling over will drop into the recesses
formed at each end of the casing by the curved ends i.
With the view of cleaning the cinders out I form a hand hole in the casing B.
Before summing up the claims of this invention I may state that in order to
easily indicate the position of the hinged doors J, I provide an indicator on
the bottom of the casing B, near the handle M, attached to the spindle K and on
this indicator I place stops so as to prevent the handle turning farther than is
necessary.
By providing a casing B, with openings a near its bottom, the air from the
apartment is withdrawn some distance away from the ceiling of the car, leaving a
warm stratum of air always at the top of the apartment, which tends to maintain
an even temperature.
In Figure 6, I show this ventilator adapted to connect with the ventilating shaft
of a house. In this application I prefer one large opening, a instead of a series of
openings as shown in the other figures and of course dispense with the revolving
ventilator, F, arranging the ventilator so that it will connect with the air shaft Q
at which point I place a hinged valve R designed to prevent any downward gusts
in the air flue from entering the apartment.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed as communicated to
me by my Foreign Correspondent I declare that what I claim is :--
1. A casing B having a series of openings, a made in it near its base and
an opening at its top leading through the roof or ceiling of the apartment, in.
combination with a horizontal partition H, located substantially as and for the
purpose specified.
2. A casing B, having a series of openings, a, made in it near its base, and
an opening at its top leading through the roof or ceiling of the apartment, in
combination with the partition H and diagonal partition I substantially as and
for the purpose specified.
3. A casing B having a series of openings a made in it near its base, and
an opening at its top leading through the roof or ceiling of the apartment,
in combination with the partition H diagonal partition I and hinged doors J
substantially as and for the purpose specified.
4. A casing B, having a series of openings, a made in it near its base and
an opening at its top leading through the roof or ceiling of the apartment,
in combination with the partition H, diagonal partition I and hinged doors J
operated by the spindles K connected together by the rod L, worms m and worm
pinion, n substantially as and for the purpose specified.
5. The revolving ventilator F, having a side-opening with flanges q and attached
to a sleeve g having a bearing collar f lubricated from the oil-cup h, in combination
with the collar e formed on the bracket y substantially as and for the purpose
specified.
6. A ventilator in which the air passages are divided by the horizontal
partition H and curved end i in combination with a hinged valve R substantially
as and for the purpose specified.