Improvements in the Construction of Apparatus for Heating Railway Carriages.
Year: 1887

page_text: Date of Application, 2nd Mar., 1887
Complete Left, 2nd Dec., 1887
Complete Accepted, 6th Jan., 1888
PROVISIONAL SPECIFICATION.
Improvements in the Construction of Apparatus for Heating
Railway Carriages.
We JOHN LANGFIELD Engineer and RICHARD LATHAM MARTLAND builder, both of
Market Square Tyldesley in the County of Lancaster do hereby declare the nature
of this invention to be as follows:-
-
This invention relates to apparatus for heating railway carriages by means of hot
air and consists principally in the application inside the fire box of the locomotive
engine of a hollow chamber or chambers made of cast iron or other suitable metal.
Pure cold air is introduced from the external atmosphere into this chamber or
chambers by means of a suitable opening and becoming heated therein passes out by
means of a suitable pipe or passage from whence it is conveyed by telescopic or
flexible pipes to the carriages.
In the floor or other convenient part of each carriage is a hot air chamber or
passage into which the hot air pipes lead, and these hot air chambers or passages are
provided with perforated panels by means of which the hot air is admitted from them
into the interior of the carriages, each carriage or compartment being provided with
slide or valve whereby the amount of hot air admitted may be regulated.
The connecting pipes are also provided with stop cocks or valves by means of which
he hot air can be shut off from any or all of the carriages.
Dated this 1st day of March 1887
GEORGE DAVIES,
4, St. Ann's Square, Manchester,
Agent for the Applicants.

page_text: COMPLETE SPECIFICATION,
Improvements in the Construction of Apparatus for Heating
Railway Carriages.
We JOHN LANGFIELD Engineer and RICHARD LATHAM MARTLAND, Builder, both
of Market Square Tyldesley in the County of Lancaster 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 :-
This invention relates to apparatus for heating railway or steam tramway carriages 5
by means of air heated by the waste heat from the engine furnace, and consists
principally in the application inside the fire box or the smoke box or the funnel of
the locomotive engine of a hollow chamber or chambers made of cast iron or other
suitable metal.
The manner in which our invention is to be performed or carried into practical
effect will be readily understood on reference to the annexed sheet of drawings and
the following explanation thereof.
The drawings show our invention as applied to the smoke box of the engine which
we consider the preferable arrangement as it does not then interfere with the stoking
or diminish at all the area of the furnace.
Fig. 1 is an end elevation of the smoke box of a locomotive engine with our invention
applied thereto. Fig. 2 is a vertical section and Fig. 3 a horizontal section of the
same.
a, a is the smoke box and b, b is the hollow chamber which may be attached to the
door c, c of the smoke box as shown in these figures, or it may be in a curved form
as shown at Fig. 4 and fixed under the curved top of the smoke box, or it may be of
any other convenient form.
Pure cold air is introduced from the external atmosphere into this chamber b, b
by means of a suitable opening, preferably a short pipe terminating in a trumpet.mouth
as shown at d, d and becoming heated therein by the waste heat from the furnace,
passes out by means of suitable pipes e, e from whence it is conveyed by telescopic
or flexible tubes, to the carriages.
A convenient way of making these tubes is shewn in section at Fig. 5, the ends
of the tubes are made rather larger in diameter and are fixed to the buffer
bars g, g. Inside each tube is placed a smaller tube h, h having an enlargement, i,
at one end sliding air tight in the manner of a piston inside the tube f, f
The outer ends of these tubes h, h are provided with any suitable kind of automati
or other coupling as at k, k which must also be airtight.
In the floor or other convenient part of each carriage is a hot air chamber o
passage into which the hot air pipes f,f lead, and these hot air chambers or passage
are provided with perforated panels by means of which the hot air is admitted fro
them into the interior of the carriages, each carriage or compartment being provide
with a slide or valve whereby the amount of hot air admitted may be regulated.

page_text: The pipes, are also to be provided with stop cocks or valves by means of which
the hot air can be shut off from any or all of the carriages.
For the purpose of increasing the current of heated air, and keeping up the current
when the Engine is at rest we also propose to insert a steam jet into the pipes f, fand
to supply the same with steam from the boiler by means of a suitable tap.
This steam will also serve to moisten the hot air and prevent it from becoming
too dry.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is:
The improved apparatus for heating railway and steam tramway carriages by means
of the utilization of the waste heat from the furnace of the locomotive engine con-
sisting principally of a hollow chamber placed in the inside of the fire box or in the
smoke box or funnel and supplied with atinospheric air by a suitable opening from
the outside and fitted with suitable flexible or telescopic pipes for the conveyance of
the heated air into the carriage or carriages substantially as hereinbefore particularly
described and illustrated by the drawings annexed.
Doind thin 1et love of December 1887
GEORGE DAVIES,
4, St. Ann's Square, Manchester,
Agent for the Applicants.