An Improved Bracket, Candelabrum, or Chandelier Oil Lamp.
Year: 1888

page_text: Date of Application, 17th July, 1888
Complete Specification Left, 6th Mar., 1889-Accepted, 29th June, 1889
PROVISIONAL SPECIFICATION.
An Improved Bracket, Candelabrum, or Chandelier Oil Lamp.
I, ALBERT BUCKLEY FAULKNEK 55 Eyre Street, Sheffield in the County of York
Silversmith do hereby declare the nature of this invention to be as follows:-
The object of this invention is to produce an improved bracket, candelabrum or
chandelier Lamp in which the oil flows from a reservoir along the arm or arms to the
wick chamber or chambers, the quantity of oil flowing through being regulated so
that just sufficient will flow from the reservoir to replace that consumed, the supply
to the arm or arms being cut off when the reservoir is being replenished.
The invention consists of a tube passing through the body of the oil reservoir either
forming an extension of a plug which screws into the top of the reservoir and can be
unscrewed therefrom when the lamp requires replenishing or separately in which case
the plug is solid and airtight.
This Plug or tube is provided with any suitable number of vents through which
the air passes down the tube and as the oil is absorbed it keeps passing up through the
oil and filling up the vacant space in the top of the oil chamber caused by the oil
sinking in oil chamber as it is absorbed by the wick and thus the oil is kept at one
level in the wick chamber.
The end of the Plug, rests upon a plate kept in position by a spring underneath;
the plate and spring being so arranged that when the Plug is taken out of the
reservoir the aperture or apertures through which the oil flows with the arm or arms
is or are closed, and when the plug is screwed into position the end of the Plug
depresses the plate and the aperture or apertures is or are open.
CASTLE SMITH,
Per F. W. Golby,
"Invention" Office, 54, Fleet Street, London, E.C., Agent for the Applicant.
COMPLETE SPECIFICATION.
An Improved Bracket, Candelabrum, or Chandelier Oil Lamp.
I, ALBERT BUCKLEY FAULKNER of 55 Eyre Street, Sheffield, in the County of
York, Silversmith 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 :-
The object of this invention is to produce an improved bracket, candelabrum, or
chandelier lamp in which the oil flows from a reservoir along the arın or arms to the
wick chamber or chambers, the quantity of oil flowing through being regulated so
that just sufficient will flow from the reservoir to replace that consumed, the supply
to the wick being cut off when the reservoir is being replenished.
The invention consists of a tube passing through the body of the oil reservoir
either forming an extension of a plug which screws into the top of the reservoir and
can be unscrewed therefrom when the lamp requires replenishing, or separately, in
which case the plug is solid and airtight. This plug or tube is provided with any
suitable number of vents through which the air passes down the tube, and as the oil is
absorbed it keeps passing up through the oil and filling up the vacant space in the top
of the air chamber, caused by the oil sinking in oil chamber as it is absorbed by the
wick, and thus the oil is kept at one level in the wick chamber. An automatic float
valve is placed in any convenient part of the arm or bracket to prevent the oil from
flowing into the wick chamber when the reservoir is being replenished.

page_text: And in order that my invention may be more fully understood and carried into
practice, I will now proceed to describe the same with reference to the accompanying
drawings, in which similar letters indicate corresponding parts in all the figures.
Figure 1 is a sectional elevation of a lamp constructed according to my invention,
and Figure 2 is a modification thereof. A is the oil reservoir, B the screw plug,
and C the air tube. More than one tube may be used if required. This tube C is
open at the top and bottom, so as to allow the free passage of air therethrough. The
plug B is accurately ground and provided with a washer if necessary so that when
screwed into position the reservoir A is perfectly airtight. If desired the bottom of
the tube may be closed and vents or airholes D placed around its circumference.
In Figure 2 the tube C is shewn with only its lower end within the reservoir A the
remainder being entirely outside. In this form the tube may be made of a curved or
other ornamental shape as desired.
The oil flows from the reservoir A along the arm or arms E down the branch J
and rises in the inner valve box F. From here it passes through a small aperture G
into the outer annular valve box H from whence it passes through the outlet
pipe K into the wick chamber L. The float M with valve N attached thereto acts
automatically as follows:-If the plug B is removed to replenish the lamp or
otherwise, the pressure of the air on the surface of the oil in the reservoir A will
cause it to flow rapidly along the arm Ę and into the inner valve box F faster than it
can escape through the small aperture G. The oil will then rise in the inner valve
box F and raise the float M and the valve N will close the aperture in the bottom of
the inner valve box F. The float and valve will remain in this position until the
excess of oil has passed into the wick chamber. Suitable vents or air holes are
provided in the cover O of the valve box to cause the ball valve to act.
When burning, the action of the lamp is as follows:-
As the oil is withdrawn from the wick chamber to feed the wick its place is supplied
drop by drop through the valve box and arm E from the reservoir A. A temporary
vacuum is thus created in the reservoir which is immediately filled by a bubble of air
passing down the air tube C and up through the oil in the reservoir to the surface.
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―
(1) The construction of an airtight oil reservoir with an open tube or tubes passing
thereinto, substantially for the purpose hereinbefore set forth.
(2) The automatic float valve constructed substantially as and for the purpose
hereinbefore set forth and illustrated in Figure 1 of the accompanying drawings.
(3) My improved lamp, constructed and operating substantially as hereinbefore set
forth and illustrated in the accompanying drawings.
Dated this 5th day of March 1880
CASTLE SMITH,
Per F. W. Golby,
"Invention” Office, 54, Fleet Street, London, E.C., Agent for the Applicant.