Improvements in Oil Stoves suitable for Heating Steam Generators.
Year: 1897

page_text: Date of Application, 26th June, 1897
Complete Specification Left, 26th Mar., 1898-Accepted, 18th June, 1898
PROVISIONAL SPECIFICATION.
Improvements in Oil Stoves suitable for Heating Steam Generators.
I, WILLIAM ARTHUR PERCY WERNER, Engineer, of Ashlands, Silverhill,
St. Leonards on Sea, Sussex, do hereby declare the nature of this invention
to be as follows:-
My invention relates to improvements in oil blast stoves for steam generators
my object being to produce a smokeless, automatic stove suitable for auto cars.
In carrying my invention into practice I employ two flanged metal trays made to
slide in under the generator and fit one upon the other leaving a small space between
the two.
Upon the top tray I place the oil supply pipe which extends down the centre
of tray and has short perforated arms on either side for distributing the oil over the
tray. The top tray which carries the oil pipe is perforated the perforations being
pressed upwards or having small pipes projecting upwards so as to prevent any
overdose of oil from running through perforations into bottom tray. I now
place loose asbestos on the top tray completely covering oil pipe and perforations
said asbestos being held in its place by a piece of wire gauze. Under the top tray
I have a thin metal plate with perforations corresponding to perforations in top
tray said plate being pressed against the top tray by one or two small springs, I
can wholly or partly close the perforations in tray by screwing the perforated
metal plate a little to one end and for that means the plate is furnished with a
threaded pin at one end which extends outside the tray where it is held by a fly
nut. I place a small spiral spring on the said pin between the end of plate and
end of tray so as to keep plate from shifting after it is set by fly nut. The space
between the two trays in communication with a fan which draws the waste heat
from the flue of generator, and the oil supply pipe is connected to a suitable pump
furnished with a two way cock which is actuated by the steam regulating lever
so that the quantity of oil used is in proportion to the steam used. Over the
top tray but leaving a small space between I place a perforated fire brick box
said box being filled with lump carbon, copper wire or any other fire proof material.
The operation of the stove is as follows:-
Oil is forced through the perforated supply pipe and arms where it is sprayed
into the asbestos, the waste heat is forced into space between the two trays through
perforations in top tray and the said asbestos where it vapourises the oil which
is ignited by a small pilot lamp, the heat passes through fire brick arch which
becomes very hot and completely burns any waste or other products that
might come from oil stove, the pure heat then passes through the generator. The
fire-brick arch is furnished with air holes along its sides for regulating the supply
of air into the arch, the air being forced in by any suitable means such as a
small fan.
Dated this 26th day of June 1897.

page_text: Improvements in Oil Stoves suitable for Heating Steam Generators.
I, WILLIAM ARTHUR PERCY WERNER, of Ashlands, Silverhill, St. Leonards on
Sea, in the County of Sussex, 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:-
.1
My invention relates to improvements in oil blast stoves, specially devised 5
with the object of rendering such stoves suitable for heating steam generators of
self-propelled road vehicles.
A blast stove constructed according to my said invention comprises two trays
arranged one above the other at the lower part of the generator so as to leave
between such trays a small chamber which communicates with a fan for drawing.
the waste heat from the flue of the generator. Upon the top tray. I place
an oil pipe having perforated arius and connected with a pump for supplying
the oil from a tank. Loose asbestos covers the said oil pipe and is held in its
place by wire gauze. A short distance above the top tray is arranged a box made
of perforated fire-brick or preferably asbestos shale and filled with lump carbon, 1
asbestos, iron turnings, or other fire-proof material.
In the accompanying drawings
Figure 1 represents a longitudinal section of the improved oil blast stove.
Figure 2 shows a transverse local section of the same on the line - of
Figure 1.
"..
"
In carrying my invention into practice I employ two flanged metal trays a
and b made to slide into the lower part of the generator and fitting one into the
other so that a small chamber will remain between their bottoms. This
chamber c communicates with the flue of the generator through a pipe d furnished
with a fan which draws the waste lieat froin such fluc and forces it into
the said chamber.. The bottom of the upper. tray b is provided with holes b
the edges of which may be pressed upwards, or which may have nozzles inserted
into them: Such holes or nozzles 6 serve for conducting the waste heat from
the chamber to the top tray. Under this top tray I arrange a metal platere
fitted to slide in contact with the bottom of such tray, against which it may be held
by means of one. or more springs el. The plate e is provided with holes
corresponding to the holes in the top tray so that by changing the position of
the pluto relatively to the tray the passage of the heat to the top tray can be
regulated at will: This adjustment may be effected by means of a thumb screw e
engaging with a screw threaded pin which is fastened to the plate e and extends
to the outside of the tray. A small spiral spring e surrounds the said spindle et
and bears against an abutment on the plate e and against the tray à in order to
prevent the said plate from shifting after it has been adjusted by the thumb
screwe
:
1..
+7
Upon the top tray b is arranged an oil supply pipe f extending along its
centre line and having perforated arms f¹ on either side for distributing the oil
over the tray. I place loose asbestos g. on the tray so as to completely cover
the oil pipe; this asbestos being held in its place by wire gauze h. "The oil supply
pipe fis connected either by means of a pipe f entering from below or by means
of a pipe hent to the form of a spiral constituting a vaporiser with a pump (not
shown) which is controlled by the steam regulating lever so that the consumption.
of oil may always be in proportion to the steam used qgh Waaj£à¸¥
A box i made of fire-brick, asbestos shale or other suitable refractory material
is provided at a little distance above the asbestos g. Its top and bottom are
F1.4
51

page_text: made with holes or slits i, preferably inclined as shown, in order to increase
the length of the passage of the vapours. This box i contains lump carbon 2
loose asbestos shale, iron turnings, or the like. Air is introduced into the
combustion chamber g¹ by any suitable means.
Oil being forced through the pipe into the supply pipe f is sprayed by the
perforated arms fl into the asbestos y, and the waste heat being forced by the
fan into the chamber c passes through the holes or nozzles b¹ into the asbestos,
thereby converting the finely distributed oil into vapours which are in the first
instance ignited by a small pilot lamp (not shown). But I prefer to force the oil
through the vapourizer in order to convert it into vapour which is distributed
through the pipe f and arms f¹ into the asbestos g, heated air being at the same.
time forced by the fan into the chamber e and through the asbestos g to
support combustion.
As the heat passes through the perforations in the box the latter becomes
extremely hot and completely burns the gases so that no smoke will pass into the
generator.
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. In oil blast stoves the arrangement of trays ab, a supply pipe f having
distributing arms f, asbestos. and a vaporizer f³, substantially as set forth.
Second: In oil blast stoves the arrangement of an air chamber c formed by
trays ab and furnished with holes or nozzles b controlled by a plate e designed
for regulating the supply of air, substantially as set forth.
Third: In oil blast stoves the arrangement of a box i of refractory material,
the top and bottom of which are furnished with inclined holes or slits 2, such
box containing lump carbon, loose asbestos shale, iron turnings, or the like,
substantially as set forth.
Fifth. An oil blast stove, arranged constructed and operating substantially as
and for purposes herein before set forth and illustrated in the accompanying
drawing.
Dated this 26th day of March 1898.
J. LINCOLN & Co.,
Lincoln Chambers, 75, Chancery Lane, London, W.C.,
Agents for the Applicant.