Improvements in Boilers.
Year: 1889

page_text: Date of Application, 23rd Oct., 1889
Complete Specification Left, 18th Feb., 1890-Accepted, 5th Apr., 1890
PROVISIONAL SPECIFICATION.
Improvements in Boilers.
I GEORGE HOYES of 45 Myton Gate, Hull in the County of York Ironmonger do
hereby declare the nature of this invention to be as follows:-
My invention has for its object to provide a boiler for heating water for use with a
system of circulating pipes for heating green houses, conservatories, halls, rooms and
the like or for generating steam by means of oil, gas or other suitable fuel.
A boiler constructed according to my invention comprises a lower cylindrical
chamber containing a central combustion chamber and flue passing completely
through the said chamber, thus leaving an annular water space closed at the top
and bottom; and an upper chamber consisting of a cone shaped upper portion
joined on to a cylindrical lower portion of the same diameter as the lower cylindrical
chamber and closed at the bottom. The upper and lower chambers are connected
together by means of short connecting pipes secured to the lower and upper ends
respectively of the said chambors near their periphery. A hot air chamber open at
its lower end is secured centrally within the upper chamber to the bottom plate of
the said chamber which is cut away at this part so as to leave the said hot air
chamber perfectly open.
Outlet pipes also pass from the outside of the upper
chamber through the annular water space between said chamber and the hot
air chamber, to the hot air chamber.
Surrounding the upper chamber is an annular hood provided at the top with a
chimney passing through the hood. The hood is connected to the upper chamber
near its top by short connecting pipes so that an air passage is left between them.
The hood extends downwards to the level of the top of the lower chamber.
The return and outflow pipes are connected respectively to the bottom of lower
chamber and to the top of the hood.
Dated this 23rd day of October 180
WHEATLEY & MACKENZIE,
40, Chancery Lane, W.C., Agents.
COMPLETE SPECIFICATION.
Improvements in Boilers.
I, GEORGE HOYES of 45 Mytongate Hull in the county of York Ironmonger, 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 present invention relates to boilers which are employed more especially for
heating water for use in a system of circulating pipes the said pipes being used for
conducting warmth to plant growing frames, conservatories, halls, rooms or the like,
and the object of my said invention is to provide a boiler which will heat the water
quickly and which is so constructed that a maximum of heat is conducted to the
water from the burning oil, gas, or other fuel used for producing said heat, and also
a more perfect circulation of the water is secured; to attain which I employ my
improved boiler which comprises a lower cylindrical chamber, containing a central
combustion chamber and a flue passing completely through the said chamber, so
that an annular water space closed at the bottom and also at the top excepting
where it communicates with the hereinafter described upper chamber; and an upper
chamber closed at the bottom excepting where it communicates with the lower chamber
and also at the top excepting where it communicates with the hereinafter described
hood. The upper and lower chambers are connected together by means of short

page_text: connecting pipes. A hot air chamber open at its lower end is secured centrally
within the upper chamber or formed therein. Air pipes pass from the outside of
upper chamber through the annular water space between said chamber and the hot
air chamber.
..
Surrounding the upper chamber is an annular hood which is provided at the top
with a chimney which passes through the crown of said hood. The hood is connected
to the upper chamber near its top by one or more short connecting pipes. Between
the hood and the outside of upper chamber a suitable annular air space is left, and
the hood extends downwards to the level of the top of the lower chamber thus
surrounding entirely the upper chamber. The lower part of hool communicates with
the upper part of lower cylindrical chamber by one or more short pipes.
In order that my present invention may be more fully understood and so that it
may readily be carried into effect I will proceed to more fully describe the same by the
aid of the accompanying sheet of drawings in which
.
Fig. 1 is a sectional elevation of my improved boiler, and figs. 2, 3, 4 and 5 are
sectional plans taken on lines a, a, b, b, c, c, and d, d, respectively of fig. 1.
Like letters and numerals of reference indicate corresponding parts in each view.
My improved boiler comprises a lower cylindrical chamber E, a central combustion
chamber e, and a flue e passing completely through it, so that an annular water
space e closed at the bottom and also at the top except where it communicates with
the upper chamber hereinafter referred to; and an upper chamber F closed at the
bottom except where it communicates with the lower chamber E and at the top also
excepting where it communicates with the hereinafter described hood.
The upper chamber F and lower chamber E are connected by means of pipes f¹.
A hot air chamber f2 open at its lower end is arranged centrally within the upper
chamber F as shown at figs. 1, 4 and 5, and a suitable number of air pipes f³ conduct
the air from said chamber. The hood H surrounds the upper chamber F and it is
provided with a chimney which passes vertically through the crown of hood. The
hood His connected to the upper chamber F by the pipes f* and to the upper part
of the lower cylindrical chamber E by one or more pipes e*.
The hood H is so arranged that a suitable annular air space o is left between the
inner part of annular hood and the outer part of upper chamber F, and the hood: H
preferably extends downwards to the level of the top of lower chamber E. The out-
How pipe K is preferably secured near the upper part of hood H, and the return flow
pipe M to the lower part of lower cylindrical chamber E.
To heat my improved boiler I prefer to employ a lamp L which is held in a position
so that when it is lit the flame is generated within the combustion chamber e¹ and
the beat travels with the products of combustion through the flue e² into the hot air
chamber and out of the horizontal pipes f³ into the annular air space o, where
fresh air is drawn in with which it mingles and the mixture ascends the chimney h¹.
The supply of fresh air which enters around the space at bottom of hood H tends to
regenerate as it were the heat in the products of combustion arising from the flame
and thus a maximum of heat is generated and conducted to the water.
It will be obvious that instead of using a lamp L, a gas jet may be employed or
any other fuel or fluid which generates heat may be used and burnt in the combustion
chamber e¹.
I have found in practice that my hereinbefore described boiler is capable of working
still more economically when the chimney is not extended through the roof of the
greenhouse or room or through the wall, but is allowed to terminate with said house
or room, this however is only practical when a fuel such as oil, paraffin coal, gas or
the like is used and I have found even then it is necessary to filter the products of
combustion before allowing them to escape into the conservatory or room in order
that no noxious fumes are allowed to float in the said room or greenhouse to the
danger of the plants or the annoyance of the occupants.
The filter I prefer to employ and which I find answers the purpose admirably when
burning paraffin oil, is composed of a receptacle J made with a spout j' which fits
onto the chimney h¹. Within the receptacle J I place a basket or box P having a

page_text: perforated bottom p². The box P is filled with suitable pieces of charcoal. On the
apper part of receptacle J is arranged a suitable chimney R as shown at fig. 1, and at
the bottom of said receptacle J is one or more small holes j².
After the products of combustion have passed up the chimney h¹ they pass through
the spout into the filtering medium or media Q where they meet with fresh air
drawn in through the hole or holes which causes the noxious fumes to be circulated
amongst the media Q, and after being so filtered the purified products escape by the
chimney R as will be well understood.
The circulation of my improved boiler is as follows:
The heated water rises up from the annular chamber E through the pipes f¹ to
the upper chamber F and then through the pipes f into the hood H when the
hotter part of the heated water passes out of the flow pipe K and the cooler portion
descends again into the chamber E by the pipe or pipes et where it mixes with the
water returned by the return pipe M and is simultaneously heated therewith and
again ascends the tubes f¹.
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
1. A boiler constructed with a lower cylindrical chamber E a central combustion
chamber e and flue e in combination with a upper chamber F having a hot air
chamber and surrounded by a hood H substantially as described and illustrated.
2. In a boiler, the use of a cylindrical chamber E having a combustion chamber e¹
and flue e, in combination with a hood H, and an upper chamber F connected
together by pipes f¹ and f* substantially as described and shown in the drawings
attached.
3. A boiler arranged with annular chambers E and F, and surrounded by a hood H,
the hood H communicating to the chamber E by one or more pipes et substantially
as described and illustrated.
4. A water boiler having flow and return pipes or connections K and M constructed
combined and arranged substantially as described and set forth in the accompanying
drawings.
5. In combination with a boiler constructed in the manner herein before described
the use of a receptacle J arranged with a box or basket P containing the filtering
media substantially as arranged and described and used for the purpose specified.
.1
הד
3000
H. F. BOUGHTON, M.I.M.E.,
Barnsley & Sheffield, Agent.
H. F. BOUGHTON, M.I.M.E.,
Barnsley & Sheffield, Agent.