Improvements in Apparatus for Warming Railway Carriages.
Year: 1895

page_text: Date of Application, 26th Feb., 1895
Complete Specification Left, 18th Nov., 1895-Accepted, 21st Dec., 1895
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Warming Railway Carriages.
HARRY RYLANCE HAIGH 3 Arboretum Square Derby, Engineer do hereby
declare the nature of this invention to be as follows:-
My invention relates to improvements in apparatus for warming railway
carriages where steam or hot water is caused to circulate through pipes on the
carriages and the water of condensation is afterwards returned to the engine or
tender tank, and consists of an arrangement of the return pipe or a portion of this
pipe as an expansion pipe in combination with a valve or valves for automatically
regulating the supply of steam or hot water entering the warming pipes, for the
purpose of maintaining them at a regular temperature.
For this purpose I place a valve or valves on the engine or tender, or in other
convenient position, and I arrange the return pipe for conveying the water of
condensation in such a manner, that the expansion or contraction of this return
pipe, due to any change in the temperature of the return water, actuates a valve
for the admission of steam or hot water to the warming pipes, so that if the water
returns too warm, the pipe expands, and cluses the admission valve, or if the water
returns too cold, the pipe contracts, and the valve is opened to admit more steam
or hot water to the warming pipes, and thus the supply is automatically regulated,
in connection with this regulating valve a safety or relief valve may be placed to
prevent over pressure of steam in the warming pipes, and the steam or hot water
arranged to blow off in such a conspicuous manner as would at once call attention
to there being any obstruction in the warming pipes, or to a coupling cock being
left shut.
Dorth Walo 1905
HARRY RYLANCE HAIGH 3 Arboretum Square Derby, 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 improvements in apparatus for warming railway
carriages where steam or hot water is caused to circulate through pipes on the
carriages and the water of condensation is afterwards returned to the engine or
tender tank and consists of an arrangement of the return pipe or a portion of this
pipe as an expansion pipe in combination with a valve for automatically regulating
the supply of steam or hot water entering the warming pipes for the purpose of
maintaining them at a regular temperature.
For this purpose I place a valve on the engine or tender or in other convenient
position and I arrange the return pipe for conveying the water of condensation
in such a manner that the expansion or contraction of this return pipe due to any

page_text: change in the temperature of the return water actuates this valve for the admission
of steam or hot water to the warming pipes so that if the water returns too warm
the pipe expands and closes the admission valve or if the water returns too cold
the pipe contracts and the valve is opened to admit more steam or hot water to the
warming pipes and thus the supply is automatically regulated in connection with
this regulating vaive a safety or relief valve may be placed to prevent over
pressure of steam in the warming pipes and the steam or hot water arranged to
blow off in such a conspicuous manner as would at once call attention to there
being any obstruction in the warming pipes or to a coupling cock being
left shut.
DESCRIPTION OF THE ACCOMPANYING DRAWINGS.
Sheet 1-Figure 1 is an illustration of a portion of the front of a locomotive
tender or engine coal bunker showing the pipe S for conveying the steam or hot
water from the boiler to valve V which controls its entrance to the pipe W lending
to the train for the purpose of warming the carriages and the return pipe R
which conveys the water of condensation back to the tender tank and which being
securely fastened at the point F is so arranged that the expansion or contraction
of a portion of this pipe R 1 actuates a valve in V for automatically regulating the
supply of steam or hot water passing through the pipe W to the train so as to
maintain the warming pipes in the carriages at an equable temperature.
Sheet 2 Figure 2 illustrates valve V.
S is the pipe conveying the steam or hot water from the boiler.
W the pipe leading to the carriages and R the return pipe for conveying the
water of condensation back to the tender.
L is a lever for the purpose of increasing the travel of the valve V 1 due to the
expansion or contraction of the portion of the return pipe R 1.
When the steam or hot water is turned on at the boiler it passes by means of
the pipe S to valve V and through the ports H into the chamber CC leading to
train pipe W whence the water of condensation returns through pipe R and R1
to the tender tank; when this water becomes too warm the expansion of R 1
acting by means of lever L moves the valve V 1 so that it covers or partially
covers the ports H thus reducing the flow of steam or hot water to pipe W; again
when the return water is too cool R 1 contracts allowing valve V 1 to be forced
outwards by the pressure of the steam from S and thus uncover the ports H and
give an increased supply for the purpose of maintaining the warming pipes at a
regular temperature.
O is a safety or relief valve which may be fixed on chamber C to preveut over
pressure on the warming pipes.
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
In combination with apparatus for warming railway carriages a valve fixed on
the supply pipe and actuated by the expansion or contraction of the return pipe
substantially as described and illustrated by the drawings for automatically
controlling the supply of steam or hot water entering the warming pipes.
Dated this 16th day of November 1895.
HARRY RYLANCE HAIGH.