APPARATUS FOR VENTILATING RAILWAY CARRIAGES
Year: 1884

page_text: I, ADAM MILLER of Lime Street in the City of London, Engineer, do hereby
declare the nature of my invention for APPARATUS FOR VENTILATING RAILWAY
CARRIAGES to be as follows
"
My invention relates to means of withdrawing the hot foul air from railway
carriages, utilising for that purpose the current of air caused by the movement of
the carriage. For this purpose, I fix on the roof of the carriage a borizontal tube
open at both ends which may be trumpet mouthed. From the ceiling of each
compartment of the carriage I make an aperture into this tube, the upper mouth
of this aperture having an inclined cheek sloping down from it each way. As the
carriage passes rapidly through the air in either direction, there is a current through
the horizontal tube, and this current, as it passes the slopes at the mouths of the
apertures, causes a current of air to rise from each of them and join the
main current in the tube, thus removing the hot foul air next the ceiling of each
compartment.
Dated this 18th day of Tune 1901.
ABEL & IMRAY,
Agents for the Applicant,
28, Southampton Buildings,
London, W.C.

page_text: I, ADAM MILLER of Lime Street in the City of London, Engineer do hereby
declare the nature of my invention for "APPARATUS FOR VENTILATING RAILWAY
CARRIAGES" and in what manner the same is to be performed to be particularly
described and ascertained in and by the following statement thereof:-
My invention relates to means of withdrawing the hot foul air from railway
carriages, utilising for that purpose the current of air caused by the motion of the
vehicle, as I will describe referring to the accompanying drawings. Fig. 1 is a
longitudinal section and Fig. 2 a transverse section of a railway carriage having a
single roof, with apparatus according to my invention applied thereto. Fig. 3 is
a longitudinal section and Fig. 4 is a transverse section of a double roofed railway
carriage, in which the spaces between the roof and ceiling are utilised for carrying
out my invention. Fig. 5 is a part longitudinal section of the ventilating channel
and one of the openings into it as I will now describe.
Along the roof of the carriage, I form a tube or, channel A or several such
channels, which may be put on outside the roof as shewn in Figs. 1 and 2, or which
may occupy the spaces. between, the roof, and ceiling as shewn in Figs. 3 and 4.
I prefer to make these channels with trumpet or expanded mouths as indicated
at B. Through the ceiling of the carriage or its compartments, I make apertures C
into the channels A, each of these apertures having inclined cheeks D sloping down
from it on each side of its upper mouth. The apertures may be provided with
adjustable slides or valves: As the carriage passes rapidly through the air in either
direction there is a current along each of the channels A, and this current as it
passes over the sloped mouth of the aperture C causes. currents of air to rise through
them, thus, withdrawing the hot foul air next the ceiling of the carriage.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
ABEL & IMRAY,
Agents for the Applicant,
28, Southampton Buildings,
London, W.C.