Improvements in Self-generating Gas Burners for Burning Oils or other Combustible Liquids and Arrangements for Supplying or Feeding the same.
Year: 1888

page_text: Date of Application, 16th Nov., 1888
Complete Specification Left, 20th Apr., 1889
Complete Specification Accepted, 1st June, 1889
Improvements in Self-generating Gas Burners for Burning Oils or
other Combustible Liquids and Arrangements for Supplying or
Feeding the same.
I, GEORGE SYLVESTER GRIMSTON of Claremont, Glenluce Road, Westcombe Park,
Greenwich, S.E., in the County of Kent Engineer do hereby declare the nature of
this invention to be as follows :-
My invention has for its object the improvement of self-generating gas burners
for burning oils or other combustible liquids, and arrangements for supplying or
feeding the same.
In this apparatus the oil or other combustible liquid, hereinafter to be called
oil, is supplied to a burner, which consists in the first place of a pan for receiving
the oil.
Above this is a cover, preferably conical in shape and so formed as to radiate heat
from the flame upon the oil in the aforesaid pan, and also to heat the incoming air,
and to lead the gas produced by the said radiated heat on the oil into a suitable
nozzle. In this cover are a series of openings for admitting the aforesaid incoming air.
In order to keep the aforesaid pan properly supplied with oil I employ the following
arrangement consisting of a tank or reservoir for oil, having a tube or opening
connecting the bottom of the tank with the aforesaid pan, the pan being approximately
on a level with the bottom of the tank. This tube or opening has a tap or similar
arrangement for cutting off the supply of oil, the tank being provided at the top
with a screw plug or similar arrangement for hermetically closing it when filled with
oil. It will thus be seen that when the said tap is turned on only a certain quantity
of oil will run from the tank into the said pan owing to the tank being hermetically
sealed.
When the level of the oil in the pan falls below the level of the top of the aforesaid
tube or opening owing to its being consumed in the burner, a small quantity of
air will enter the aforesaid tank and will thus release a certain portion of oil, thus
raising the level of the oil in the said pan, this action will continue until all the
oil is consumed.

page_text: When the oil is being burnt it is necessary to induce a current of air for forming
an elongated flame, and for this purpose provide a coil of pipe (or other suitable
arrangement for producing a large surface) which surrounds the lower portion of the
flame, one end of which is connected to a water tank in such a way that a pressure
of water can be kept up in the pipe, the other end terminates in a suitably formed
jet underneath the said pan. The pan is provided directly above this jet with a
tube or orifice to direct the current of steam and air produced by the said jet into the
aforesaid nozzle. In order to produce this jet of steam, air is forced into the said
water tank by means of a small hand pump, or other convenient arrangement. This
produces a pressure on the water and forces it up the aforesaid pipe into the coil
surrounding the flame. Any water passing through this coil is thus converted into
steam. The steam thus produced issues as above described from the jet, inducing a
current of air. This current of steam and air passing through the tube or orifice in
the centre of the pan licks up the gassified oil and combines with it to form an elongated
flame, which passing through the centre of the coil issues from the nozzle and can be
used for either heating or lighting.
I do not limit myself to a tank as above described for producing the required water
pressure, where convenient the aforesaid coil can be connected to the ordinary water
supply. In cases where steam is at hand the said coil can be directly connected to its
source thereby obviating the necessity of a water supply.
In place of hermetically sealing the tank for supplying the oil, I can also use a small
valve by means of which I allow air to enter the tank at a rate suitable for a proper
supply of oil to the burner, such rate being governed by the consumption of oil in the
burner, and by its level in the said pan.
Dated this Fifteenth day of November 1888

page_text: Improvements in Self Generating Gas Burners for Burning Oils or
other Combustible Liquids and Arrangements for Supplying or
Feeding the same.
I, GEORGE SYLVESTER GRIMSTON, of Claremont, Glenluce Road, Westcombe Park,
Greenwich, S.E., in the County of Kent, 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 has for its object the improvement of self generating gas burners for
burning oils or other combustible liquids, and arrangements for supplying or feeding
the same, as I shall describe referring to the accompanying drawings.
Fig. 1 is a vertical section of water tank and oil reservoir with elevation of the
burner connected therewith, and Fig. 2 is a vertical section to an enlarged scale of
the burner.
As shewn in Fig. 2, the burner has a pan P with a conoidal air passage P¹ through
its bottom, this passage reaching above the level L of the oil in the pan and having a
ventilator valve P which can be turned to admit more or less air by the passage Pt.
The level L of the oil is determined in the following manner.
From the bottom of the oil reservoir O (Fig. 1) a passage O' provided with a stop
cock O' leads to the pan P, but only the lower part of the mouth of the passage O¹ is
open as indicated at 0³. When the level L of oil in the pan tends to fall below that
in the passage 01, air can enter O' by a lateral port O' and find its way into the
reservoir O (which is otherwise closed air tight) thereby allowing oil to flow from O,
in the manner of a fountain glass. The pan P is provided with a cover C which is
hinged at the hinge being a hollow trunnion with a suitably packed joint for a
pipe W which ascends to it from the bottom of a water tank W (Fig. 1). The pipe W!
is continued to form convolutions of a coil W2 in which steam is generated by the heat
of the flame, and from the top of the coil W' a pipe W³, governed by a screw stop
valve W leads to a jet nozzle S in the centre of the passage P1. Within the coil W
there is a conoidal inner casing (perforated all round it under the coil with holes O³
for admission of air. There are also air holes C through the upper lip of the pan P.
In the water tank W is fixed a band pump A for compressing air, which, occupying
the upper part of the tank, gives sufficient pressure to force water up to and through
the coil W.
When a supply of water under pressure or of steam is available, the tank W and
pump A can be dispensed with, the pipe W' being connected to the water or steam
service with a suitable cock or valve for regulating the supply. The steaui generated
in the coil W issuing in a jet at S induces a current of air through the passage Pi
and also a current of oil vapour from the surface L of the oil. The mixed current of
air, steam and oil vapour, being ignited and receiving a farther supply of air through
the holes and C³, forms a powerful flame which issues from the mouth of the
cover and is available for lighting or heating purposes. The lower part of the flame

page_text: heats the coil W' and casing C so that the air entering by the holes C³ is heated
and the heat radiated from C on the oil at L maintains the supply of oil vapour. The
cover C along with the inner casing ( coil W³, pipe W and jet nozzle S, can at any
time be turned up on the hinge C¹, giving access to the interior for cleansing or
repairs.
Although in the preceding description I have mentioned oil as the combustible
liquid employed, obviously the apparatus described is applicable to the burning of the
vapour or gas generated from other suitable combustible liquids.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. In a self generating gas burner for burning oils or other combustible liquids,
the combination of an oil pan having a central adjustable air supply passage, a cover
having an internal steam generating coil and inner perforated casing. and a steam jot
nozzle in the air passage, substantially as described.
2. In combination with a burner such as is above referred to, a closed oil reservoir
and pipe leading to the burner pan, the said pipe opening into the pan below the
oil level therein, and being provided with a lateral air port, substantially as and for
the purpose set forth.
3. In combination with a burner and oil reservoir such as above referred to, a water
tank and air compressing pump, substantially as described.
Dated this 18th day of April 1889.
ABEL & IMRAY,
Agents for the Applicant.