Year: 1886

page_text: We JOSEPH WALTER SUTTON 15 Hilldrop Crescent Camden Road N.W. Domestic
Machinist and FRANCIS LE ROSSIGNOL 29 Peun Road Villas Holloway N. Architect
do hereby declare the nature of this invention to be as follows:--
The improved railway carriage lamp is intended to burn gas in combination with
hydro carbon vapour, it is constructed in the following manner.
The gas pipe passing along the roof of the carriage has a gas regulating cock
upon it and it terminates in an angle piece with a stem projecting upwards. The
stem has a conical socket at its upper end adapted to receive a corresponding cone
or plug, a tube forming part of the inner body projects horizontally from the
conical plug and passes to the centre of the lamp. It then descends and it
terminates at its lower end in a burner so placed that when the lamp is in position
the burner is a short distance below and within the roof of the carriage. The gas
tube within the body of the lamp is provided with branches. One of the branches
leads gas into the generator and the other conducts the gas and hydro carbon
vapour from the generator to the burner. The generator is of annular form with
conical tube in centre and its sides taper upwards so that it is larger at the base
than at the upper end it is provided with a filling cap which is removed only for
the purpose of introducing hydro carbon. The brances of the gas tube meet in a
regulating cock by means of which the proportion of gas passing direct from the
gas supply pipe to the burner and of vapour charged gas passing to the burner
from the generator can be adjusted so that a luminous and smokeless flame may be
produced. Within the generator baffle plates are provided so that oscillation of the
carriage in travelling may not cause the bydro carbon to be irregularly thrown
against the sides of the generator otherwise irregular liberation of vapour might
result causing the lamp to smoke. Beneath the generator but not in contact with
it there is a enamelled reflector about at the level of the carriage roof. It serves
not only to reflect the light downwards into the carriage but also to shield the
bottom of the generator from excessive heat. The reflector has a slit in the centre
by which a portion of the heated products of combustion from the flame ascenda
through the interior of the annular generator thereby raising the temperature
thereof sufficiently to cause vapour to be liberated.

page_text: A cyclinder surrounding the exterior of the generator serves to maintain a
uniformity of temperature around it and also to produce an up draught which
favours the steady burning of the flame.
There is also an outer cylinder fixed to the roof of the carriage and between
this and the inner cylinder there is a rim carrier which supports the body of lamp
also a passage for such of the heated products from the flame as do not pass by the
central passage they escape by perforations near the top of the outer cylinder
immediately below a cover with which it is fitted. A wind guard shelters these
perforations so that the flame may not be affected by external air currents.
The inner cylinder is similarly perforated immediately beneath its cover and by
these perforations some of the products of the combustion pass.
The outer and inner covers are connected together at the centre by a perforated
connecting piece of cylindrical form.
Within the carriage the flame is enclosed by a glass bowl secured to the roof or
ceiling of the carriage by a metal ring. This ring is perforated for the purpose of
ventilation. The distance of the reflector from the bottom of the generator can be
adjusted to control the heat passing to the generator.
When the lamp requires recharging with hydro-carbon the whole of the interior
body of the lamp can be removed to the lamp room another body being substituted.
When the covers have been taken off the inner body of the lamp can be lifted
away the joint cone leaving the socket in the gas pipe. This inner body consists
of the generator, the inner cylinder, the reflector, the burner, the regulating cock
and the joint cone which enters the socket in the permanent gas pipe on the
carriage roof Immediately below this socket we provide a gas regulator to insure
regularity in the pressure of the gas passing to the burner.

page_text: We, JOSEPH WALTER SUTTON 15 Hilldrop Crescent, Camden Road N.W. Domestic
Machinist and FRANCIS LE ROSSIGNOL 29 Penn Road Villas Holloway, N. Architect
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 has for its object railway carriage lamps burning gas in com-
bination with hydro-carbon vapour.
We so construct such lamps as to be readily applicable to carriages with lamp
apertures of the ordinary sort; also so that the oscillation of the carriage may not
cause the flame to smoke; and so that the gas burner and vapour generator can be
lifted out whenever necessary and can be replaced by another whilst the first is
taken to the lamp room to be replenished, repaired or adjusted.
Our improvements render lamps of this class practically applicable to the
lighting of railway carriages and great economy in the lighting of railway carriages
results.
In order that our said invention inay be fully understood and readily carried
into effect we will proceed to describe the drawings hereunto annexed.
DESCRIPTION OF THE DRAWINGS.
Figure 1 is a vertical section of a railway carriage lamp constructed in accordance
with our invention.
Figure 2 is also a vertical section and shows a railway carriage lamp of another
form a modification of the above.
In the arrangement shown by Figure 1 the gas pipe a passing along the roof of
the carriage has a gas regulating cock b upon it, and it terminates in an angle piece
with a stem al projecting upwards. The stem has a conical socket a² at its upper
end adapted to receive a corresponding cone or plug e. A tube & forming part of
the inner body projects horizontally from the conical plug e and passes to the
centre of the lamp; it then descends and it terminates at its lower end in a
burner e so placed that when the lamp is in position the burner is a short distance
below and within the roof f of the carriage. The gas tube & within the body of
the lamp is provided with branches d¹ and d. One of the branch d' leads gas
into the generator g and the other d² conducts the gas and hydro-carbon vapour
from the generator to the burner e. The generator is of annular form with
conical tube g' in centre and its sides taper. It is provided with a filling cap g*
which is removed only for the purpose of introducing hydro-carbon. Commercial
naphthaline is the hydro carbon we prefer to employ. The gas tube d and its
branch ďª leading into the generator meet in a regulating cock h by means of which
the proportion of gas passing direct from the gas supply pipe a to the burner and
of vapour charged gas passing to the burner from the generator g can be adjusted,
so that a luminous and smokeless flame may be produced. Within the generator
baffle plates g³ g fixed to its sides are provided so that oscillation of the carriage

page_text: in travelling may not cause the hydro-carbon to be irregularly thrown against the
sides of the generator otherwise irregular liberation of vapour might result causing
the lamp to smoke. Beneath the generator g but not in contact with it there is
an enamelled reflector i about at the level of the carriage roof; it serves not only
to reflect the light downwards into the carriage but also to shield the bottom of
the generator from excessive heat. The reflector has a slit in the centre by
which a portion of the heated products of combustion from the flame ascends
through the interior of the annular generator, thereby raising the temperature
thereof sufficiently to cause vapour to be liberated.
A cylinder surrounding the exterior of the generator serves to maintain a
uniformity of temperature around it and also to produce an up draught which
favours the steady burning of the flame.
There is also an outer cylinder fixed to the roof of the carriage and between
this and the inner cylinder there is a rim carrier which supports the body of the
lamp.
This inner body consists of the generator g, the inner cylinder k, the reflector i,
the burner e, the regulating cock h and the joint cone c which enters the socket a³
in the permanent gas pipe on the carriage roof. Immediately below this socket
we provide a gas regulator m to insure regularity in the pressure of the gas passing
to the burner.
There is a passage between the inner cylinder k and the outer cylinder / for such
of the heated products from the flame as do not pass by the central passage; they
escape by perforations near the top of the outer cylinder at immediately below a
cover n with which it is fitted. A wind guard 3 shelters these perforations, so
that the flame may not be affected by external air currents.
The inner cylinder k is similarly perforated immediately beneath its cover k¹ and
by these perforations some of the products of combustion pass.
The outer and inner covers n and are connected together at the centre by a
perforated connecting piece o of cylindrical form.
Within the carriage the flame is enclosed by a glass bowl p secured to the roof
or ceiling f of the carriage by a metal ring f¹. This ring is perforated for the
purpose of ventilation. The distance of the reflector i from the bottom of the
generator g can be adjusted to control the heat passing to the generator.
When the lamp requires recharging with hydro carbon the whole of the interior
body of the lamp can be removed to the lamp room, another body being
Bubstituted.
When the covers have been taken off the inner body of the lamp can be lifted
away, the joint cone c leaving the socket a³ in the gas pipe.
In the modification shewn by Figure 2 the following parts are the same or
similar to those shown in Figure 1. a the gas pipe, b the gas tap upon it. a¹ the
vertical stem of the gas pipe terminating in the conical socket a², c the cone plug
fitting this socket, d the pipe leading to the burner, d' the branch passing into the
generator and meeting the pipe d at the regulating cock d the branch leading
mixed gas and vapour from the generator to the burner. e is the burner, f the
roof of the carriage, g is the annular generator and g¹ its internal conical sides,
g2 is the filling cap, g³ the baffle plates to prevent the liquid hydro-carbon from
being splashed about when travelling which if permitted would cause the flame to
smoke, h is the regulating cock of well known construction which determines how
much of the gas shall pass direct from the supply pipe to the burner and how much
shall first pass through the generator. is the reflector of somewhat different
form from that shown in Figure 1 and no longer removeable with the inner body
of the lamp. In respect to the inner cylinder a change is made; it is replaced by
two concentric cylindrical screens and attached to the outer cylinder l. The
outer cylinder is adapted to fit a metal ring q set into the aperture in the roof of
the carriage. The passage between the inner and outer cylinders no longer serves
for the escape of products of combustion but for ventilation and the admission of
air to the flame.

page_text: The circles at ³ ³ represent perforations through the sides of the cylinder / and
the same arbitary sign is employed in other parts of the drawing. is an
annular wind guard in front of the perforatians 13. The air entering by these
perforations descends between land and then passes through the perforations
indicated at the lower part of 11.
The air then passes over the top of cylinder l' and descends between it and the
exterior of the generator g; then passing by the edges of the reflector ¹ it reaches
the interior of the bowl p. The cover n is connected by a hinge joint and fastening
to the cylinder l, it has fixed to it an inner cover n¹ which is perforated as indicated
for the escape of products of combustion passing up from the flame through the middle
of the annular generator. A cap n³ connected by metal straps to n' serves to deflect
the upward current allowing it only to pass beneath its edges. n³ is a perforated
ring attached to the cover n and through the perforations in this ring the current
passes outwards from the space between n and n¹. o is an annular wind guard
attached to n and standing in front of the perforations in the ring n³. The glass
bowl P is mounted in a frame which is hinged to the metal ring q. The lamp can
thus be opened from the interior of the carriage when desired and the flame can be
adjusted by shifting the slider r along the pipe d; this slider as will be seen is
connected by a rod s with an arm on the plug of the regulating cock h.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is:-
1. A railway carriage lamp for burning gas and hydrocarbon vapour in which
the generator and burner can be lifted out and removed; the gas pipe forming part
of the body of the lamp being made for this purpose to terminate in a conical plug
entering a corresponding upright socket on the standing gas pipe and in which also
an annular generator is employed and means are provided for regulating the passage
of gas and vapour to the burner substantially as described.
2. A railway carriage lamp for burning gas and hydro-carbon vapour and
in which an annular generator provided with internal baffle plates is employed
substantially as described.