Improvements in Incandescence Oil Lamps.
Year: 1899

page_text: Date of Application, 26th June, 1899-Accepted, 7th Oct., 1899
COMPLETE SPECIFICATION.
Improvements in Incandescence Oil Lamps.
I, OLIVER IMRAY, of Birkbeck Bank Chambers, Southampton Buildings, in
the County of London, Chartered Patent Agent, do hereby declare the nature of
this invention (as communication to me from abroad by Francois Eustache
Mavrogordato, of Grande Rue de Pera, Constantinople, Turkey, Engineer,) and
in what manner the same is to be performed to be particularly described and
ascertained in and by the following statement:-
The economy effected by incandescence illumination has induced many attempts
to obtain an efficient incandescence oil burner, but most of these have failed owing
to the difficulty of obtaining hot oil vapour nearly gasified and intimately mixed
with air for producing the blue flame necessary for incandescing refractory
mantles and also ensuring complete combustion, by apparatus arranged to pre-
vent choking of passages and capable of being easily cleaned.
The present invention relates to the construction of a vaporiser which by
gradual heating of the oil over extended heating surface produces dry vapour
partly gasified which can intimately mix with air and produce a regular and
very hot blue flame. The apparatus also can be easily taken apart, cleaned and
put together by an unskilful person.
I shall describe the apparatus with reference to the accompanying drawings.
Fig. I is an elevation of the lamp.
Fig. II is a vertical section.
The other figures III to X inclusive shew the parts separately.
From an oil reservoir at a higher level or in which the oil is under air or
other pressure, oil flows in quantity regulated by a screw valve I through a
coil 2 which is heated by the flame from the wick 3 of a lamp, causing vaporisa-
tion of the oil as it passes through the coil 2.
The vapour passes into an annular receiver 4 and thence through holes 6 into
a cup 5 which is highly heated by the flame of the lamp. Within the cup 5
there is a bell 7 which compels the oil vapour to pass to the bottom of the cup 5
on its way to the outlet 8 much of the vapour being converted into gas by
the heat. The vapour and gas in issuing from the outlet 8 are deflected by a
disc 11 into space 9 and thence they pass
the edge of the
disc 11 to the outlet 12 as an injector jet. This jet draws with it.air entering by
lateral openings under the gallery 15 and the mixture ascends the Bunsen tube 13
and issues through wire gauze or perforated metal 14, where, being kindled it.
produces a blue flame of intense heat which raises the mantle to brilliant incan-
descence.
a
over
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed, I declare that what I claim
is:-
1. An incandescence oil lamp constructed and operating substantially as de-
scribed with reference to the drawings.

page_text: 2. The combination of a coil 2 supplied with oil and heated by the flame of an
oil wick 3 with the receiver 4, cup 5, bell 7, receiver 9, jet 12 and Bunsen tube 13,
and burner 14, substantially as described.
ABEL & IMRAY -
Agents for the Applicant.