An Improved Apparatus for Ventilating and Warming the Ventilating Air of Railway Carriages.
Year: 1893

page_text: Date of Application, 4th Apr., 1893-Accepted, 2nd June, 1893:
COMPLETE SPECIFICATION.
An Improved Apparatus for Ventilating and Warming the
Ventilating Air of Railway Carriages.
I, CARL VIERING of Bielefeld in the German Empire, Director of Manufactory,
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:—
:
The apparatus of this invention has for object to supply to the several
carriages or compartments of carriages of a train fresh air taken from a place in
advance of the locomotive, to warm the air so obtained when it is desirable to do so,
and to separate from said air at a place in advance of the foremost carriage any
snow or rain water that it may carry with it.
In the accompanying drawing
Figs. 1 and 2 are respectively a side view and a front end view of the apparatus
of this invention applied to a railway train.
A is a pipe open at the front end and fixed above the locomotive so as to project
beyond the chimney. A' a pipe fixed over the roof of each carriage and on the one
hand in connection with the pipe A on the locomotive and on the other hand with
the pipe A of the next following carriage, flexible couplings or connections a made
of metal, leather or flexible tube, connecting the several pipes together so that
these may follow the movements of the carriages. Pipe A¹ of the last carriage of
the train is closed at the back end so that over the whole of the train there is an
air passage A, A, open at the front and closed at the back end. B are pipes
branching from pipes A' and leading into the several carriages or compartments of
carriages of the train each of which branch pipes may be wholly or partially closed
by a slide. Whilst the train is in motion fresh and dust free air taken from a place
in advance of the chimney of the locomotive will be pressed into pipe A, passing
thence through branch pipes B to the upper or lower part of the carriages, before
entering which it strikes a perforated surface thereby preventing a disagreeable
draught and causing a steady pressure to prevail in the whole of the air passage.
The used air is discharged from the carriages by pipes C at the end opposite the
direction of the train's motion.
Instead of a single air passage A, A¹, two as shewn in Fig. 2, or more, may be
used-and-instead of carrying the air passage over the carriages this may be built
into the roofs of the carriages-and.form part of them.
For the purpose of warming the air pressed into-the-air_passage A, A¹ a tubulous
heater K is intercalated in the same where it passes over the tender or-the.loco-
motive. The air passes through the tubes of the heater and is warmed by steam,
supplied from the boiler through pipe D, playing against said tubes.
When the train is at a standstill the supply of ventilating air from the front end
or entrance of the air passage may be effected by means of a steam jet apparatus
worked from the locomotive.
The quantity of air entering the air passage may be reduced by providing a
comparatively small inlet orifice therefor, or regulated by means of a slide or
valve 6 in the air pipe A.
Any snow or rain water entering the air passage is caught and discharged by a
water catcher S located at the bottom of said passage in front of the foremost
carriage of the train, or two water catchers may be used, as shewn in the
drawing.
In hot climates the ventilating air may be cooled by causing water to flow from
a reservoir continuously over a part of the air passage or casing.

page_text: 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:
1. A ventilating apparatus for railway carriages consisting of one or more air
conduits A, A', open at the front end and closed at the rear end of the train, said
conduit or conduits being carried over the locomotive so that its front open end
projects in advance of the chimney of the locomotive, and over all the carriages
the train, and communicating with, and conducting ventilating air by branch pipes B
to the different carriages or compartments of carriages of the train substantially as
described and shewn.
of
2. In the ventilating apparatus referred to the means for warming the ventilating
air by the intercalation in air passage A over the tender or the locomotive of a
tubulous vessel K through which the ventilating air passes, heated by steam from
the locomotive boiler, substantially as described and shewn.
3. In the ventilating apparatus referred to, the interception and discharge from
the air passage of the snow or rain water carried in by the ventilating air by
means of one or more water catchers S located at the bottom of the air passage
in advance of the foremost carriage of the train, substantially as described and
shewn.
Dated this 1th dor of Anvil 1802
CAPITAINE & VON HERTLING,
89, Chancery Lane, London, W.C., Agents for the Applicant.