Improvements in and Connected with the Heating of Steam Generators and Water Heaters by Kilns.
Year: 1887

page_text: Date of Application, 18th May, 1887
Complete Left, 17th Mar., 1888
Complete Accepted, 18th May, 1888
Improvements in and Connected with the Heating of Steam
Generators and Water Heaters by Kilns.
JOHN EBENEZER BARWICK 1 Hopeville Villas St. Peters Kent Builder &c. do
hereby declare the nature of this invention to be as follows :-
The application of the principle of a running kiln for the
purpose of heating boilers
or generating steam whether the lime from the kiln is intended for use or not.
When the boiler is constructed with the view of burning good lime for sale or use,
the heating surface of the boiler would generally be only those parts containing the
fire and the dome over the fire, but in cases where the primary object is to heat
water or generate steam with the view of obtaining greater heating surface a chamber
may be formed across the upper part of the fire box or kiln the upper part inter-
secting with the dome and the lower part extending down on to or into the fire,
this chamber would generally be V or U shaped but may be of any shape, and to
obtain still greater heating surface the flue or flues through which the products of
combustion pass may be brought down below the top of the fire and return round
the boiler between the fire and the outer shell of the boiler inside which flue tubes
may be arranged.
For large boilers there may be several kilns or fires in one boiler. Or it may be
used as an extension to an existing boiler or the boiler may be constructed. so as to
have an ordinary furnace together with but independent of the fire of the running
kiln.
Besides getting a large body of fire at a small cost it is a great advantage that with
coal coke breeze wood or other fuel together with chalk stone shells or other like
substances petroleum or other oil may be used as fuel.
It is applicable to boilers of any size and for either fixed portable locomotive or
marine boilers and also for boilers for heating apparatus.

page_text: improvements in and Connected with the Heating of Steam
Generators and Water Heaters by Kilns.
I, JOHN EBENEZER BARWICK, of 1 Hopeville Villas, St. Peters, Kent, Builder &c.
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 boilers, the construction of which is based on the principle
of a running kiln, that is to say, a kiln into the top of which the crude material is
fed from time to time together with coke or other carbonaceous material, and from
the lower end of which the product is drawn, so that the process
continuous.
The main object of my said invention is the utilization of the heat generated in the
production of lime, or in similar operations, for heating water for the purpose of
generating steam, whether the lime or other product of calcination is, or is not
intended for subsequent use.
My improved boiler is constructed with a central fuel chamber or space having the
form of an inverted truncated cone and surrounded by a water-space. Suitable
apertures or passages are provided at, or near the upper end of the boiler for the
introduction into the said fuel chamber or space of the fuel, with or without chalk or
other crude material, and the lower end of the fuel chamber is left open for the
discharge of the ashes and the lime or other product of calcination. I find that
boilers so constructed are very advantageous for simultaneously generating steam and
producing lime. They are also advantageous for use in conservatories and the like,
with or without the introduction of chalk together with the fuel.
In the accompanying drawing, I have shown how my said invention
conveniently and advantageously carried into practice.
Figure 1 is a front elevation of one form of my improved boiler.
Figure 2 is a vertical section on the line x, x, Figure 1.
may be
Figure 3 is a vertical central section of another form or modification of my
improved boiler.
Figure 4 is a vertical section on the line x, x¹, Figure 3.
Like letters indicate corresponding parts throughout the drawing.
a is the boiler-shell. b is the central fire chamber or space which is surrounded by
the water-space c. d, d are the apertures or passages for the introduction of the fuel
and other material. e is the chimney or funnel for the escape of the gaseous
products of combustion.
When the boiler is constructed according to my invention with the view of burning
good lime for sale or use, the heating surface of the boiler usually may consist only a
of those parts containing the fire and of the dome over the fire as shown in Figures 1
and 2. If, however, it is desired to obtain a greater amount of heating surface, it
is advantageous to form a water chamber or bridge f across the upper part of the

page_text: fire-box or kiln, as shown in Figures 3 and 4. This chamber or bridge is preferably
V-shaped or U-shaped in transverse section; it may, however, be of other suitable
shape. To obtain a still greater amount of heating surface, the flue or flues, through
which the products of combustion pass, are sometimes extended down from the top
of the boiler through or around the water-space thereof and thence to a suitable
chimney. Large boilers are, in some instances, constructed with several kilns or fire-
chambers in one boiler.
Besides obtaining a large body of fire at a small cost, my invention affords the
great advantage that with coal, coke, breeze, wood, or other fuel, together with chalk,
stone, shells, or like substances, petroleum or other oil may be used as fuel.
My said invention is applicable to boilers of any size and of various kinds for
generating steam or for other heating purposes.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I wish it understood that
I claim :-
First. A boiler constructed on the principle of a running kiln, as above
specified.
Second. The improved boiler constructed substantially as described with reference
to Figures 1 and 2, or to Figures 3 and 4 of the drawing, for the purposes
specified
Dated this 15th day of March 1888.
J. E. BARWICK.
Haseltine, Lake & Co.,
45, Southampton Buildings, London,
Agents for the Applicant.