IMPROVEMENTS IN LAMPS FOR BURNING OILS OR OTHER LIQUIDS
Year: 1884

page_text: We ALFRED DAVID TURNER of 34 Rippoth Road Old Ford, in the County of
Middlesex, Engineer and WILLIAM FLATAU of Lusan House, Highbury Quadrant
in the same County, Gentleman do hereby declare the nature of our invention
for "IMPROVEMENTS IN LAMPS FOR BURNING OILS OR OTHER LIQUIDS" to be as
follows:-
Our invention has reference to lamps for burning oils or other liquids and the
improvements are as follow:-
For the purpose of enabling the wick holder and wick in lamps such as railway
carriage roof lamps, station lamps and other similar lamps to be raised and lowered
as required by a device which is outside the enclosing bowl or globe we connect to
the wick holder one end of a lever which is pivoted on a horizontal axis and whose
other end is connected to the end of a vertical rod. At the other end of this rod
is a crank to which is fixed an arm which has a finger piece for turning it.
According to the direction in which this finger piece is turned so is the wick
holder raised or lowered through the intermediation of the arm, crank, connecting
rod and lever. The connecting rod and lever are by preference enclosed by, one of
the vertical limbs and half the horizontal limb of a ☐ shaped tube, the other
vertical limb of which contains the oil supply pipe while we fill the remainder of
the horizontal limb with asbestos or other suitable material through which the oil
filters to the wick and which prevents it overflowing. The 2 vertical limbs of the
☐ tube have connected to their upper part a ring which is supported by the top
of the bowl when the tube is in place. The upper part of that portion of the tube
which encloses the connecting rod comes above the bowl and in the case of carriage
roof lamps may project above the roof so as to allow of the wick being lowered
from the outside of the carriage.
In order to ensure that the flame shall be quite extinguished when the wick
holders and wicks of oil lamps are lowered we hinge on a horizontal axis within
the wick tube a plate of the whole width of this tube. A protruberance on the
wick holder bears against this plate so that when the said holder is lowered it
pushes out the part of the plate which is below the hinge and consequently the
upper part of the plate is moved across the wick tube and closes it. Upon the
wick holder being again raised the protuberance bears against the upper part of
the plate and pushes it out of the way,

page_text: For the purpose of controlling the flow of the oil or liquid to lamps from a
reservoir above we fit to the valve through which the oil passes from the reservoir
to the oil supply pipe in the tube hereinbefore described or to other like oil.
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supply pipes, one end of a lever to which a diaphragm is fixed; this lever is within
a channel leading from the reservoir to the valve and the diaphragm forms a sort of
cap or lid to an opening in the side of the channel.
In a suitable bracket we mount a screw the end of which bears against the
middle of the diaphragm, so that by screwing up the screw the diaphragm is forced
inwards so as to act upon the lever and valve, and by unscrewing the screw. the
diaphragm returns by virtue of its own elasticity and thereby acts on the lever
and valve in the reverse direction. We are thus able to adjust the valve to a
nicety, even so as to let the oil pass to the lamp drop by drop and prevent all
liability of an overflow and this without having any screw or other device passing
from the outside to the inside of the oil channel; there is therefore no chance of
air leaking in or of oil leaking out.
Dated this 29th day of February 1884.

page_text: .
We ALFRED DAVID TURNER of 34 Rippoth Road Old Ford in the County of
Middlesex Engineer and WILLIAM FLATAU of Lusan House Highbury Quadrant
in the same County Gentleman do hereby declare the nature of our invention for
IMPROVEMENTS IN LAMPS FOR BURNING OILS OR OTHER LIQUIDS and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement :-
Our invention has reference to lamps for burning oils or other liquids and the
improvements are as follows:-
For the purpose of enabling the wick holder and wick in lamps such as railway
carriage roof lamps, station lamps and other similar lamps to be raised and lowered
as required by a device which is outside the enclosing bowl or globe we connect to
the wick holder one end of a lever which is pivoted on a horizontal axis and whose
other end is connected to the end of a vertical rod. At the other end of this rod
is a crank to which is fixed an arm which has a finger piece for turning it.
According to the direction in which this finger piece is turned so is the wick
holder raised or lowered through the intermediation of the arm, crank, connecting
rod and lever. The connecting rod and lever are by preference enclosed by one of
the vertical limbs and half the horizontal limb of a
vertical limb of which contains the oil supply pipe, while we fill the remainder of
the horizontal limb with asbestos or other suitable material through which the oil.
filters to the wick and which prevents it overflowing. The upper part of that
portion of the tube which encloses the connecting rod comes above the bowl
and in the case of carriage roof lamps may project above the roof so as to allow of
the wick being lowered from the outside of the carriage.
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☐ shaped tube, the other
The part of our invention above described is illustrated in Figure 1 of the
annexed drawings which is a vertical section of a railway carriage roof lamp
constructed according to our improvements. a is the wick holder, b is a lever
pivoted at c and connected at one end to the wick holder and at the other to the '
lower end of a vertical rod d. At the upper end of this vertical rod is a crank e
on the end of an arm f which has a finger piece f¹ for turning it. It will readily
be seen that according to the direction in which this finger piece is turned, so is
the wick holder a raised or lowered. The rod d and lever b are shown as enclosed.
by one of the vertical limbs g' and half the horizontal limb g² of the ☐ shaped
tube g g g; the other vertical limb contains the oil supply pipe h and the
remaining portion of the limb g² is filled with asbestos i¹ or other suitable material
through which the oil filters to the wick. As is seen in the figure the rod d extends
so far upwards that it will project above the roof of the carriage so that the wick
can be lowered from the outside of the carriage. i is the lamp bowl.
In order to ensure that the flame shall be quite extinguished when the wick
holders and wicks of oil lamps are lowered, we hinge on a horizontal axis within
the wick tube a plate of the whole width of this tube. A protuberance on the
wick holder bears against this plate so that when the said holder is lowered it
pushes out the part of the plate which is below the hinge and consequently the
upper part of the plate is moved across the wick tube and closes it. Upon the
wick holder being again raised the protuberance -bears against the upper part of
the plate and pushes it out of the way.

page_text: This part of our invention will be understood on reference to Figure 2. is a
plate hinged at m and of a width equal to that of the wick tube n. o is a
protuberance on the wick holder a and bearing against the plate l. When the
wick holder is being lowered into the position seen in the figure the protuberance
pushes against the lower part of the plate so that the upper part
moved across
the wick tube as shown and closes it. Upon the wick holder being again raised
the protuberance o bears against the upper part of the plate 7 and pushes it out of
the way.
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:-
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1. Constructing railway carriage roof lamps and other similar lamps with
mechanism substantially as represented in Figure 1 of the annexed drawings
whereby the wick holder and wick can be raised or lowered as required by a
device outside the enclosing bowl as herein set forth.
2. The hinged plate 7 Figure 2 acted on by the wick holder a so as to close the
wick tube n when the holder is lowered, substantially as set forth.