Improvements in and connected with Lamps for the Purpose of Preventing Explosions in the Reservoirs thereof.
Year: 1889

page_text: Date of Application, 5th Nov., 1889
Complete Specification Left, 10th July, 1890-Accepted, 23rd Aug., 1890
PROVISIONAL SPECIFICATION.
Improvements in and connected with Lamps for the Purpose
of Preventing Explosions in the Reservoirs thereof.
1, WILLIAM OLIVER, of No. 193, Downham Road, Islington, in the County of
London, Coach Builder, do hereby declare the nature of this Invention, to be as
follows:-
This invention refers to oil lamps and consists in the application of one or more
valves or openings for the free exit of any gases or vapours produced in the oil
reservoir.
The openings are made in such manner that a cap or valve which may be
hinged sliding or otherwise, is lifted up when the least extra pressure is produced
by gas or vapour being evolved in the reservoir. Or the cap or valve may be so
constructed that the vapour can always escape under ordinary conditions, thus also
serving to keep the interior of the reservoir cool, and is only lifted or moved when
an abnormal amount of gas is produced. When the valve is removed the opening
may serve as a filler and, in the case of a sliding or piston like valve, the latter
may be attached to the lamp by a chain or otherwise in order to preclude its
being dropped or lost. The valve or valves may be mounted on the reservoir, or
on the screw socket for the burner, or, in some cases, in the burner itself.
Dated this 5th day of November 1880
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.
COMPLETE SPECIFICATION.
Improvements in and connected with Lamps for the Purpose
of Preventing Explosions in the Reservoirs thereof.
I, WILLIAM OLIVER of No. 193 Downham Road, Islington in the County of
London, Coach Builder, 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 refers to oil lamps and consists in the application of one or more
valves or openings for allowing of the free exit of any gases or vapours produced in
the oil reservoir.
The said openings are made in such manner that a cap or valve which may be
hinged, sliding or otherwise, is lifted up when extra pressure is produced by gas or
vapour being evolved in the reservoir or the cap or valve may be so constructed that
the vapour can always escape under ordinary conditions thus also serving to keep the
interior of the reservoir cool and is only lifted or moved when an abnormal amount of
gas is produced.
And in order that my invention may be more easily understood I will proceed to
describe the same with reference to the accompanying drawings, of which :-
Figure 1 represents the reservoir of a lamp in part sectional elevation with my
invention applied thereto.
Figure 2 is a similar view but showing the valve applied not to the reservoir itself
but to the screwed socket for the burner.
Figure 3 is a modified form of valve applied to the reservoir and
Figure 4 shows the application of a similar valve to the body of the burner.
Referring more especially to Figure 1 it will be seen that the valve A is made to
slide up and down freely in an approximately vertical direction in a socket B
cemented or otherwise fixed into the reservoir. The valve is provided with a hole a
D
กา

page_text: which is normally open and with holes a for the free exit of vapours as soon as it rises
and if the valve as shown projects down into the oil other holes i might if desired be
made in the lower part of the tubular valve so as to allow free passage of vapour into
the interior of valve. The dotted lines show the position of the valve when it has
risen under the influence of the gas pressure. When the valve A is removed the
opening serves as a filler and in the case just described the said valve may, as shown,
be attached to the lamp by a chain c or otherwise in order to preclude its being
dropped or lost.
Figure 2 shews the same form of valve applied to the screwed socket for the burner
instead of to the reservoir.
Figure 3 shews the application of a hinged valve in the form of a cap on the
reservoir shown in an open position, the dotted lines showing the position when closed,
and
Figure 4 represents a similar valve mounted in the lower part of the burner.
Although I have only shown two kinds of valves it is evident that other forms or
constructions may be used, neither do I limit myself to the exact methods shown of
applying such valves to lamps.
Having now particularly described and ascertained the nature of my said
Invention, and in what manner the same is to be performed, I declare that what
I claim is :-
First. The employment of a valve for allowing of the escape of gas or vapour
produced in the oil reservoir of an oil lamp and serving also as a filler substantially as
described.
Second. A device for allowing of the escape of gas or vapour in the reservoir of
an oil lamp consisting of a valve A with holes a and a sliding in a socket B
substantially as described and shown.
Third. A dévice for allowing of the escape of gas or vapour in the reservoir of an
oil lamp consisting of a hinged valve A mounted on a socket or tube
the reservoir of the lamp substantially as described and shewn.
connected to
Dated this 10th day of July
1000
LUNA
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.