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

page_text: Date of Application, 18th Dec., 1890-Accepted, 24th Jan., 1891
COMPLETE SPECIFICATION.
Improvements 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 the combination in a carriage ventilator with inlet
and outlet passages and an inductive passage or tube for introducing air to and with-
drawing vitiated air from a carriage, of a regulating slide provided with guiding and
deflecting passages for the purpose of directing the currents of air and separating
that which is leaving the carriage from that which is entering it, these guiding and
deflecting passages being arranged substantially as hereinafter described.
Referring to the accompanying sheet of illustrative drawings which show apparatus
according to my invention applied to a carriage door,
Fig. 1 shews to the left of the line A B in outside elevation and to the right of that
line in inside elevation, part of the door with my apparatus applied to it;
Fig. 2 is a horizontal section in the line C D of Fig. 1 and
Fig. 3 is a vertical section in the line E F of Fig. 2.
1 is the door formed with openings 2, 3 and to the outside of which is fixed a shell
or casing of metal or other suitable material shaped to form with the openings 2, 3
in the door, two air passages 2, 5 and 3, 6, the outer ends of which are in the example
illustrated made with enlarged funnel-shaped mouths although they might be of
uniform cross section, the inner ends being adapted to be placed in direct communi-
cation with the interior of the carriage when desired as well understood. 7 is an
inductive air passage or tube that connects the air passages 5 and 6. In the example
illustrated this inductive air passage or tube projects into and is surrounded by each
of the air passages 5 and 6, but it can be made short and instead of projecting into
the said air passages may simply connect them so that air can flow from the one
into and through the other. 8 and 9, are inclined surfaces that act as guides for
deflecting upward the air as it enters the carriage by the passages 2, 5 and 3, 6.
These constructions of ventilators are not now claimed as constituting novel features
of my present invention, being already described respectively in the Specification of
my former Patent No. 14091 of 1887 and in the Specification of my application for
Patent No. 2009, of 1890.
10 is a slide provided with wide mouthed guiding and deflecting passages il
and 11". This slide is arranged to move in suitable grooves or guides on the inner
side of the door and the orifices 10" and 10" are made to correspond with those of the
inner ends of the air passages 2-5, 3-6.
To the inner side of the slide is secured the casings 11 that form with the slide
itself the guiding and deflecting passages 11 and 11ª. In the example illustrated
these passages are horizontal but they might be otherwise arranged, for instance each
instead of running in the direction of the length of the carriage might also have an
upward inclination. 12 is a projection to take hold of for adjusting the position of
the combined slide and guiding and deflecting passages 11, 11ª according to the
quantity of air to be admitted.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed [ declare that what I
claim is :-
:-
The combination in a carriage ventilator with inlet and outlet passages and an
Linductive vassage or tube for introducing air to and withdrawing vitiated air from a

page_text: carriage, of a regulating slide provided with guiding and deflecting passages for
the purpose of directing the currents of air and separating that which is leaving the
carriage from that which is entering it, substantially as described with reference to
the example illustrated in the drawings bereunto annexed.
Dated this 18th day of December 1890.
W. LLOYD WISE,
Per F. J. Brougham,
Agent for the Applicant.