Improvements in Vertical Boilers for Hot Water Heating Apparatus.
Year: 1893

page_text: Date of Application, 1st Mar., 1893
Complete Specification Left, 1st Dec., 1893-Accepted, 6th Jan., 1894
Improvements in Vertical Boilers for Hot Water Heating
Apparatus.
I, GEORGE HARVEY, of Thorncliffe Lane, Chapeltown, near Sheffield, Foundry
Manager, do hereby declare the nature of this invention to be as follows:-
My invention relates to vertical boilers used for heating water for circulation in
hot water heating apparatus.
It has for its object a novel method of constructing such boilers so that the
heating power of the boiler is considerably increased as compared with such boilers
as ordinarily heretofore constructed.
In order to put my invention in operation I make a vertical iron boiler of the
kind ordinarily used for such purposes, and of suitable shape in plan (such as
rectangular with a curved or semi-circular back).
The boiler contains an inner vertical fire chamber of corresponding shape,
connected to the outer boiler at its lower edge, a space being left between the inner
and outer chambers forming a water space all round and at the top. The inner
chamber is open below and is provided with a firegrate, and the entire boiler stands
in a suitable base, preferably of cast iron, which forms an ashpan, and an opening
is provided through the water space at or near the bottom of the boiler fot
attending to the fire, and another opening above it higher up for the supply of fuel,
both openings being provided with hinged or sliding doors. The front of the ash
pan is also provided with a similar door for regulating the admission of air below
the fire grate.
Sockets or connections to receive the ends of the pipes or coils through which
the hot water is to circulate are formed or fixed upon the external boiler at or near
the top and bottom of the latter respectively.
In such boilers it has been usual to convey away the smoke and products of
combustion from an opening in the upper part of the inner chamber passing
through the water space directly to a chimney, and my present invention consists in
arranging a hollow horizontal mid-feather or partition extending across the inner
chamber from side to side above the opening and door through which the fuel is
supplied. This mid-feather preferably inclines down somewhat at its front edge,
which may be somewhat deeper than its back edge which latter does not extend
quite to the back of the inner chamber but leaves a space through which the
smoke and products of combustion rise and then pass forward through the space
between the top of the midfeather and the top of the inner chamber, to a passage
through the water space in the front of the boiler, which enters an external
chamber communicating with a chimney. This chamber may be provided with a
damper and with a soot door for cleaning.
The back edge of the mid-feather described is preferably rounded to facilitate
the passage of the smoke and gases round it. The sides of the mid-feather
communicate with water spaces at the sides of the boiler.
The entire boiler may be built into masonry, the front only (which may be made
as ornamental as desired) being visible. Or the boiler may stand alone and
independent.
By my invention greatly increased heating nower is obtained.

page_text: The details of the improved boiler may be varied more or less, as may be found
desirable.
Dated this 1st day of March 1893.
EDWARDS & Co.,
35, Southampton Buildings, London, Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Vertical Boilers for Hot Water Heating
Apparatus.
I, GEORGE HARVEY, of Thorncliffe Lane, Chapeltown, near Sheffield, Foundry
Manager, 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 and accompanying drawing, that is to say:-
My invention relates to vertical boilers used for heating water for circulation in
hot water heating apparatus.
It has for its object a novel method of constructing such boilers so that the
heating power of the boiler is considerably increased as compared with such boilers
as ordinarily heretofore constructed.
The accompanying drawing is in illustration of my invention.
Figure 1 is a perspective view of a boiler and fittings, Figure 2 a vertical section
through the same.
Figure 3 is a separate vertical section, Figure 4 a front view, and Figure 5
a horizontal section (on the line A B Figure 4) through the wrought iron boiler,
without the fittings.
In order to put my invention in operation I make a vertical iron boiler a of the kind
ordinarily used for such purposes, and of suitable shape in plan (such as rectangular
with a curved or semi-circular back) as shewn.
The boiler contains an inner vertical fire chamber b of corresponding shape,
connected to the outer boiler at its lower edge, a space being left between the inner
and outer chambers forming a water space c all round and at the top. The inner
chamber is open below and is provided with a firegrate d, and the entire boiler
stands in a suitable base e, preferably of cast iron, which forms an ashpan, and an
opening is provided through the water space at or near the bottom of the boiler
for attending to the fire, and another opening g above it higher up for the supply of
fuel, both openings being provided with hinged or sliding doors h and i. The front
of the ashpan is also provided with a similar door k for regulating the admission of
air below the fire-grate d.
Sockets or connections 1, 1¹ to receive the ends of the pipes or coils through
which the hot water is to circulate are formed or fixed upon the external boiler at
or near the top and bottom of the latter respectively.
In such boilers it has been usual to convey away the smoke and products of
combustion from an opening in the upper part of the inner chamber passing through
the water space directly to a chimney, and my present invention consists in arranging
a hollow mid-feather or partition m extending across the inner chamber b from side
to side above the opening g and door i through which the fuel is supplied. This
mid-feather m preferably inclines down somewhat at its front edge, which may be
somewhat deeper than its back edge which latter does not extend quite to the back
of the inner chamber 6 but leaves a space n through which the smoke and products
of combustion rise and then pass forward through the passage o between the top of
the midfeather m and the top of the inner chamber 6, to a passage through the
water space in the front of the boiler which enters an external chamber p communi-
cating with a chimney r. This chamber may be provided with a damper s and with
a soot door t for cleaning.

page_text: The back edge of the mid-feather m described is preferably rounded as shewn to
facilitate the passage of the smoke and gases round it through the space n.
The
sides of the midfeather communicate with water spaces at the sides of the
boiler.
The entire boiler may be built into masonry, the front only (which may be made
as ornamental as desired) being visible. Or the boiler may stand alone and
independent as shewn.
The essential feature of my invention is the water-way or midfeather m which
materially increases the heating surface of the boiler and being placed at an angle
as shewn, the flame impinges against it and is bound to strike at the top of the
boiler before entering the flue passing to the chimney.
By my invention greatly increased heating power is obtained.
The details of the improved boiler may be varied more or less, as may be found
desirable.
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 :-
In vertical boilers for hot water heating apparatus, the combination with the
boiler a, of the waterway or midfeather m, the space n, and passage o, communi-
cating with a chimney r, substantially as and for the purpose described and
illustrated.
this 1st day of December 1095.
EDWARDS & Co.,
35, Southampton Buildings, London, Agents for the Applicant.