An Improvement in Apparatus for Ventilating Railway and other Carriages.
Year: 1890

page_text: Date of Application, 6th Feb., 1890
Complete Specification Left, 6th Nov., 1890-Accepted, 6th Dec., 1890
PROVISIONAL SPECIFICATION.
An Improvement in Apparatus for Ventilating Railway and other
Carriages.
I, JOHN ANDERSON, of Burnbank House, Oban, in the County of Argyle, North
Britain, Railway Manager, do hereby declare the nature of this invention to be as
follows:
My invention has reference to an improvement in ventilating apparatus of the kind
invented by me and for which Letters Patent were granted to. me under date the
18th day of October 1887 No. 14091.
In the Specification of the said Letters Patent I described apparatus constructed
with two air passages communicating with the interior of the carriage to be ventilated
and having external funnel-shaped mouths facing in opposite directions, with an inner
inductive passage or tube extending from one such air passage to the other.
Now according to my present invention in order to increase the velocity of the
inducing current instead of employing an internal inductive passage projecting into
and surrounded by each of the air passages I connect these passages by a comparatively
short tube that does not project into either of the said passages but connects them in
such wise that air can flow from the one into and through the other.
Dain thio Cih dove of Fahrwony 1800
W. LLOYD WISE.
COMPLETE SPECIFICATION.
An Improvement in Apparatus for Ventilating Railway and other
Carriages.
I, JOHN ANDERSON, of Burnbank House, Oban, in the County of Argyle, North
Britain, Railway Manager, 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 :-
My invention has reference to an improvement in ventilating apparatus of the kind
invented by me and for which Letters Patent were granted to me under date the
18th day of October 1887 No. 14091.
In the Specification of the said Letters Patent I described apparatus constructed
with two air passages communicating with the interior of the carriage to be
ventilated and having external funnel-shaped mouths facing in opposite directions,
with an inner inductive passage or tube extending from one such air passage to
the other.
Now according to my present invention in order to increase the velocity of the
inducing current, instead of employing an internal inductive passage projecting into and
surrounded by each of the air passages I connect these passages by a comparatively
short passage or tube that does not project into either of the said passages but
connects them in such wise that air can flow from the one into and through the
other.
In the accompanying drawings
Fig. 1 is a side elevation,
Fig. 2 a horizontal section; and
Fig. 3 a transverse section on the line a¹ b' Fig. 2 of part of a door with
ventilating apparatus constructed according to this invention applied thereto.
A is the door formed with openings E F, and to the outside of which is fixed
a shell or casing a of metal or other suitable material shaped to form with the
openings E F in the door two air passages E B and F C the outer ends of which are
[Price 621

page_text: made with enlarged funnel shaped mouths and the inner ends of which can be placed
in direct communication with the interior of the carriage as described in the Specifi-
cation of my former patent already mentioned. D is a short inductive air passage
that connects the funnel shaped air passages B and C. In the example illustrated the
passage D is formed in a wall that divides the two funnel shaped passages B and C,
but when the said passages are formed by separate shells or casings then the passage D
will be formed by a short tube connecting the air passages B and C but not pro-
jecting into them. The shape of the inductive air passage D may be variously
modified. Thus it may be circular and of one diameter throughout its length, or be
of other form in cross section. Also the form of the funnel shaped air passages can
be modified. HH' are guides for deflecting upward the air as it enters the carriage
by E B or F C.
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 construction with a short connecting tube or passage D as hereinabove
described with reference to and illustrated in the drawing hereunto annexed, of
ventilating apparatus of the kind forming the subject of my former patent No. 14091,
of 1887.
Dated this 6th day of November 1800
W. LLOYD WISE,
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicant.