Improvements in Apparatus for Heating and Ventilating Railway- vehicles.
Year: 1888

page_text: Date of Application, 18th Oct., 1888
Specification Accepted, 7th Dec., 1888
COMPLETE SPECIFICATION.
Improvements in Apparatus for Heating and Ventilating Railway-
vehicles.
°
I, HUGO FISCHER VON RÖSLERSTAMM of 1 Lothringerstrasse 5 Vienna in the
Empire of Austria 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 :-
My invention relates to apparatus for heating and ventilating railway vehicles by
means of steam and for providing the said vehicles with a supply of fresh heated
atmospheric air. The amount of air supplied to the said vehicles is permanently
regulated according to the climate.
The necessary steam is taken from the locomotive boiler or from a special one and
is conducted through the steam pipes running along the train to the combined
steam heating and ventilating apparatus fixed in the compartments of the vehicles.
The accompanying drawing shows two forms of apparatus adapted to be fixed
under the seats of a railway carriage.
Figure 1, shows the injector elbow drawn to an enlarged scale.
Figure 2 shows an arrangement for regulating the heat by means of an isolated
Cover.
Figure 3 shows an arrangement for regulating the heat by means of a cock or
valve.
The improved apparatus comprises an injector elbow E, Figure 1, combined with a
double-jacketted heating-tube H, Figures 2 and 3, fed by the steam pipe D, Figures 2
and 3.
The injector elbow E, Figure 1, communicates through the valve opening F in the
floor of the carriage with the atmospheric air, the said opening being provided with a
valve by which the admission of air can be regulated.
A short piece of tube O Figure 1 is formed or fixed on the face of the injector
elbow, which allows the air of the compartment to pass through the heating tube H,
Figures 2 and 3.
The heating effect is regulated by means of a cock W, fixed in the steampipe D,
Figure 3, or by means of an inclined cover J, Figure 2, enveloping the heating tube

page_text: and injector elbow. This cover is provided with a trap-door or valve K through
which the heated air passes into the compartment; the said cover is also provided with
openings at the opposite end and at the longitudinal sides through which the air of
the compartment enters the said cover.
The action of this combined heating and ventilating apparatus is as follows:
The steam in the space R of the double jacketted heating tube heats the air in the
space L of the said tube as well as the air on the outside of the same, and a circulation
of the air is created in consequence to the inclined position of the heating tube. The
air of the compartment enters through the opening X, Figure 1, in the face of the
injector elbow E, into the interior of the heating tube, passing through the whole
length of the same, and reenters the compartiment through the trap-door or valve K.
This circulation of the air in the compartment draws in the atmospheric air through
the valve opening F into the interior of the heating-tube, which naturally follows the
current of air inside the said tube and is also heated, being forced to pass through
the whole length of the heating-tube.
By this means heated air alone is allowed to penetrate into the compartment.
The amount of atmospheric air to be used for ventilation, which is allowed to pass
through the valve opening F, Figure 1, is permanently regulated according to the
climate by means of the screw threaded stem of the valve G
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I. declare that what
I claim is:
The arrangement of an injecter elbow-piece E provided with a valve opening F
and valve G adapted to regulate the supply of fresh atmospheric air, in combination
with a double-walled heating tube, which has for its object, besides heating the
compartments, to introduce into the latter, by means of the regulating device, a
definite quantity of fresh air which before being admitted into the said compartment
is previously heated by passing through the entire length of the heating tube.
Dated this 18th day of October 1888.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London,
Agents for the Applicant.