Improvements in or relating to Oil-burners for Furnaces.
Year: 1890

page_text: Date of Application, 18th Jan., 1890
Complete Specification Left, 18th Oct., 1890-Accepted, 22nd Nov., 1890
PROVISIONAL SPECIFICATION.
Improvements in or relating to Oil-burners for Furnaces.
I, GEORGE SYLVESTER GRIMSTON of Claremont Glenluce Road, Westcombe Park,
Greenwich S.E. in the County of Kent, Electrical Engineer do hereby declare the
nature of this invention to be as follows:
-
My invention relates to oil burners of the kind in which the vapour generated from
the surface of oil contained in a pan or basin mingled with air and steam forms a
flame which is directed into the fire box or flue of a boiler or into a furnace chamber.
For this purpose, I fix against the boiler front near or below where the fire door
usually is, or against the front of a furnace where there is an aperture into the furnace
chamber, a vessel having on the side next to the fire door or furnace an opening
corresponding with the fire door or furnace aperture, and on the opposite side an inlet
port or several such ports of conoidal form each having in its centre a nozzle for a
steam jet, and also other inlets for air provided with regulating valves.
The lower part of the vessel-forms a pan or basin which is supplied to a constant
level with oil from a vessel having its supply controlled by a float valve or by a
fountain arrangement such as is described in my Specification No. 16,63688. The
oil in the pan being in the first place heated by any convenient means and the vapour
on the surface of the oil being kindled, steam supplied to each of the nozzles issues
in a jet drawing air with it through the conoidal inlet, and additional air being
admitted in regulated quantity by the other inlets, a powerful flame is formed which
is directed through the fire door or furnace aperture into the fire box or furnace
chamber, where it may be distributed by striking against a deflector of refractory
material. After first starting the operation, the heat in the oil vessel suffices to
continue the generation of the oil vapour to supply the flame. When steam is not
available for supplying the jets, it may be generated by the heat in the oil vessel.
For this purpose I place on the top of the oil vessel a small boiler having tubes
descending through a hole or holes in the top of the oil vessel. This boiler being
fed with water under pressure, generates steam for the jets.
When the apparatus is applied to a steam boiler the small boiler may be employed
to supply steam to the jets until steam is got up in the main boiler, after which
the small boiler may if desired be disconnected from the jets and removed, the steam
for the jets being then taken from the main boiler.
The apparatus may be used in conjunction with a fire of coal or other fuel, the
oil vessel being preferably placed under the fire door with suitable passages for the
Hame to the furnace.
Dated this 18th day of Jonna 1800
ABEL & IMRAY,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in or relating to Oil-burners for Furnaces.
I, GEORGE SYLVESTER GRIMSTON, of Claremont, Glenluce Road, Westcombe Park,
Greenwich, S.E. in the County of Kent, Electrical Engineer, 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 :-
My invention relates to oil burners of the kind in which the vapour generated
from the surface of oil contained in a pan or basin mingled with air and steam form
[Price 8d1

page_text: a flame which is directed into the fire box or flue of a boiler or into a furnace
chamber. For this purpose, I fix against the boiler front near or below where the
fire door usually is, or against the front of a furnace where there is an aperture into
the furnace chamber, a vessel having on the side next to the fire door or furnace an
opening corresponding with the fire door or furnace aperture, and on the opposite
side an inlet port or several such ports of conoidal form each having in its centre a
nozzle for a steam jet, and also other inlets for air provided with regulating valves.
The lower part of the vessel forms a pan or basin which is supplied to a constant
level with oil from a vessel having its supply controlled by a float valve or by a
fountain arrangement such as is described in my Specification No. 16,63688. The
oil in the pan being in the first place heated by any convenient means and the vapour
on the surface of the oil being kindled, steam supplied to each of the nozzles issues
in a jet drawing air with it through the conoidal inlet and additional air being
admitted in regulated quantity by the other inlets, a powerful flame is formed which
is directed through the fire door or furnace aperture into the fire box or furnace
chamber, where it may be distributed by striking against a deflector of refractory
material. After first starting the operation the heat in the oil vessel suffices to
continue the generation of the oil vapour to supply the flame. When steam is
not available for supplying the jets, it may be generated by the heat in the oil
vessel. For this purpose I place on the top of the oil vessel a small boiler having
tubes descending through a hole or holes in the top of the oil vessel. This boiler
being fed with water under pressure generates steam for the jets.
When the apparatus is applied to a steam boiler the small boiler may be employed
to supply steam to the jets until steam is got up in the main boiler after which the
small boiler may if desired be disconnected from the jets and removed, the steam
for the jets being then taken from the main boiler.
The apparatus may be used in conjunction with a fire of coal or other fuel, tho
oil vessel being preferably placed under the fire door with suitable passages for the
flame to the furnace.
Figure 1 of the accompanying drawings is a front view and Figure 2 is a part
vertical section of a steam boiler having applied to it an oil burner according to my
invention; Figure 3 is a longitudinal section of a portable heating furnace or forge
with a similar burner applied to it. The oil basin B is supplied with oil to a constant
level from a cistern C fed by a ball cock. Above the oil level in the basin there is
formed a conoidal air inlet D, or there may be several of these as shown in
Fig. 1.
In line with each of these inlets there is a central nozzle for a steam jet E which
acts as an injector drawing in air by the inlet D and, the vapour on the surface
of the oil being kindled, directing the flame through the passage F into the flue A of
the boiler or into the heating chamber A¹ of the furnace or forge. Besides the
air entering at D, additional air enters by apertures below regulated by a valve d.
As shewn in Figs. 1 and 2 a small removeable steam boiler G having tubes H closed
at the bottom is placed above the flame chamber, this containing sufficient water for
supplying steam to the jets E until steam is got up in the main boiler, in which case
the boiler G is disconnected and removed, and the holes through which the tubes H
pass are covered. As shewn in Fig. 3, the small steam boiler is in the form of an
annular vessel surrounding the flame passage F. This is supplied with water from a
tank K containing above the water air compressed by a hand pump L. The feed
pipe has a union allowing of its being separated, so that the annular boiler can be
removed if it should be damaged. For the annular boiler a coil of pipe surrounding F
might be substituted.
At one end of the basin B is a sloping spout M with hinged cover.m, giving
access to the basin for cleaning out deposit. Although in Fig. 3 I have shewn a
furnace mounted on wheels, it might obviously be stationary, and might be used for
reheating, melting or other heating purposes. When used for heating small articles
such as rivets, it is convenient to make a feeding hole in the roof covered by
plug N.

page_text: 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 :-
An oil burner for furnaces consisting of a basin supplied with oil, above the basin
on the one side an air inlet, with steam injector jet, and on the other side a flame
passage arranged and operating substantially as described.
Dated this 18th day of October 1890.
ABEL & IMRAY.