An Oil Flame Furnace.
Year: 1890

page_text: Date of Application, 13th June, 1890
Complete Specification Left, 12th Mar., 1891-Accepted, 18th Apr., 1891
PROVISIONAL SPECIFICATION.
An Oil Flame Furnace.
We, THE LUCIGEN LIGHT Co., LD., Manufacturers, and THOMAS MARTIN
JARMAIN, Manager of the said Co., all of Page Street Works, Westminster, in
the County of Middlesex, do hereby declare the nature of this invention to be as
follows:-
Our invention relates to a furnace in which the heat is produced, by an oil flame
directed by a steam jet. The furnace may be either stationary or portable. I
construct the portable furnace in the following manner. On a wheeled truck I
build a furnace chamber of fire brick or other suitable refractory material pre-
ferably strengthened by a metal casing, and, at the side of this structure, separate
from it, I place a tank containing water and compressed air, and above it a tank
containing oil. Over the furnace chamber I fix a burner of the following
description.
A basin having a tubular boss projecting up from its centre is supplied from the
oil tank with oil up to a certain level determined by a suitable float valve. Below
the basin is a closed annular vessel constituting a boiler supplied with water from
the water tank subject to the pressure of air in that tank, produced by a hand force
pump or otherwise.
From this annular boiler a pipe extends upwards and after being carried in the
form of a hollow coil above the basin it terminates in a nozzle directed downwards
towards the centre of the basin. The coil is enclosed by a metal casing from
which a tube open at the top extends upwards within a larger tube constituting
chimney to which passages lead from the furnace chamber below. For starting
the burner into action, the oil in the basin is kindled and the flame burning upwards
heats the coil until steam is generated. The steam issuing from the nozzle ther
directs the flame down through the tubular boss of the basin. The water, supplied
to the annular boiler is then converted into steam which becoming superheated by
passing through the coil issues from the nozzle in a powerful jet directed down-
wards. Air drawn in by the jet mixes with the oil vapour evolved from the oil in
the basin and forms a flame directed downwards into the furnace chamber so as to
heat crucibles, rivets or other articles placed therein. The products of combustion
pass upwards by the chimney and heat the tube within it by which air is drawn
down to supply the flame. For a stationary furnace, the burner is like that above
described and acts in the same manner, but the water and oil tanks may be arranged
where convenient, the oil tank being at a level sufficiently high to supply the basin
of the burner.
Dated this 13th day of June 1890.
ABEL & IMRAY,
Agents for the Applicants.
COMPLETE SPECIFICATION.
An Oil Flame Furnace.
We, THE LUCIGEN LIGHT Co., L., Manufacturers, & THOMAS MARTIN
JARMAIN, Manager of the said Co., all of Page Street Works, Westminster, in
the County of Middlesex, do hereby declare the nature of this invention, and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement :-
Our invention relates to a furnace in which the heat is produced by an oil flame

page_text: directed by a steam jet. The furnace may be either stationary or portable. We
construct the portable furnace as shewn in the accompanying drawing which is a
longitudinal section. On a wheeled truck A we build a furnace chamber of fire
brick or other suitable refractory material preferably strengthened by a metal
casing and at the side of this structure, separate from it, we place a tank D
containing water and compressed air, and above it a tank E containing oil. Over
the furnace chamber we fix the burner which is of the following description.
A basin having a tubular boss ƒ projecting up from its centre is supplied from
the oil tank E with oil up to a certain level determined by a suitable float valve G.
Below the basin is a closed annular vessel H constituting a boiler supplied with
water from the water tank D subject to the pressure of air in that tank produced
by a hand force pump K or otherwise.
From the annular boiler H a pipe extends upwards and after being carried in
the form of a hollow coil L above the basin it terminates in a nozzle N directed
downwards towards the centre of the basin. The coil L is enclosed by a metal
casing M covered by a cap O. Within the boss of the basin and within the
boiler H there are refractory linings to protect those parts from excessive heat.
For starting the burner into action the cap O is removed the oil in the basin Fis
kindled and the flame burning upwards heats the coil L until steam is generated.
The steam issuing from the nozzle N then directs the flame down through the
tubular boss and the water, supplied to the annular boiler H is converted into
steam which, becoming superheated by passing through the coil L, issues from the
nozzle N in a powerful jet directed downwards. The cap O being replaced. Air
drawn in by the injector action of the jet through the holes of the cap and through
slots through the edge of the basin mixes with the oil vapour evolved from the
oil in the basin and forms a flame directed downwards into the furnace chamber B
so as to heat crucibles, rivets or other articles placed therein. The products of
combustion pass upwards by the chimney Q. By means of a pipe R provided
with a valve or stopcock the basin can be emptied, the flame being thus
extinguished. For a stationary furnace the burner is like that above described and
acts in the same manner, but the water and oil tanks may be arranged where con-
venient, the oil tank being at a level sufficiently high to supply the basin of the
burner.
Having now particularly described and ascertained the nature of this inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is:-
An oil flame furnace constructed and operating substantially as described with
reference to the accompanying drawing.
Dated this 10th day of March 1801
ABEL & IMRAY,
Agents for the Applicants.