Improvements in Water Heating Apparatus.
Year: 1893

page_text: Date of Application, 25th Oct., 1893
Complete Specification Left, 25th July, 1894-Accepted, 25th Aug., 1894
PROVISIONAL SPECIFICATION.
Improvements in Water Heating Apparatus.
1, WILLIAM EDGE of Richmond Lodge, Church Road, Wavertree in the
County of Lancaster, Hot Water Engineer, do hereby declare the nature of this
invention to be as follows:
:-
This invention has for its object an apparatus or boiler for heating water, and
is adapted more especially for supplying hot water for warming public buildings,
manufactories, workshops, mansions, halls and stair cases of ordinary dwellings,
and for other purposes. The invention is designed to provide a much larger
heating surface in proportion to the area of the furnace grate than has hitherto
been obtainable.
In carrying my invention into effect, I provide a boiler of preferably horseshoe
or semi-cylindrical shape, having at each side and also at one end a hollow wing or
jacket between which and the main part of the boiler is a horizontal flue for the
heat of the furnace to circulate through. This outer water jacket is connected
with the main portion of the boiler, whereby a constant circulation of the water
can be kept up throughout its entire area. The front part of the boiler is provided
with doors for feeding the furnace with fuel, this front part being preferably some-
what reduced in area. The boiler is preferably set in the brickwork, ample flue
space being provided between the top of the boiler and the brickwork to form
a flue.
The boiler may (if desired) be provided inside with a series of horizontal and
parallel tubes connected with the main portion of the boiler through which the
water can circulate, which greatly increase the heating surface of the apparatus.
Inlets for the cold water are preferably placed near the front of the boiler, and
separate exits for the hot water may be provided in the jacket, in the main part of
the boiler, and in the tubes, so that hot water may freely flow out.
The apparatus
is preferably of wrought iron welded without joints, seams, or rivets, but, if desired,
the apparatus may be made in sections or in any other suitable manner.
When in action, the furnace heats directly the water tubes and the main portion
of the boiler. The heated gases pass to the back of the furnace, then through the
horizontal flues between the main portion of the boiler and the jackets to the front,
from whence they return to the back of the boiler again through the flue at the top,
to the chimney stack.
By my arrangement, I estimate that I obtain a much larger heating surface than
hitherto with a smaller grate area.
I have described one way in which my invention can be carried into effect, but it'
is obvious that, once given the general idea, alterations may be made in the
arrangement of flues.
Dated this 24th day of October 1893.
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Patent Agents for the Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements in Water Heating Apparatus.
I, WILLIAM EDGE of Richmond Lodge, Church Road, Wavertree in the
County of Lancaster, Hot Water 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 :-
This invention has for its object an apparatus or boiler for heating water, and is
adapted more especially for supplying hot water for warming public buildings,
manufactories, workshops, mansions, halls and stair cases of ordinary dwellings,
and for other purposes. The invention is designed to provide a much larger
heating surface in proportion to the area of the furnace grate than has hitherto been
obtainable.
The invention will be best understood from the following description, reference
being had to the accompanying drawings, and to the letters and numerals marked
thereon, in which,
Figure 1 is a longitudinal section,
Figure 2 a cross section, and
Figure 3 a plan.
In these, the boiler A is preferably formed of a horseshoe or semi-cylindrical
shape, having at each side and also at one end a hollow wing or jacket B between
which and the main part of the boiler is a horizontal flue C for the heat of the
furnace to circulate through. This outer water jacket B is connected with the
main portion of the boiler A, whereby a constant circulation of the water can be
kept up throughout its entire area. The front part D of the boiler may be
provided with doors for feeding the furnace with fuel, this front part being
preferably somewhat reduced in area as shown. The boiler is preferably set in the
brickwork, ample flue space being provided between the top of the boiler and the
brickwork to form a flue.
E is a series of horizontal and parallel tubes connected with the main portion of
the boiler A through which the water can circulate, which greatly increase the
heating surface of the apparatus. F are inlets for the cold water placed near the
front of the boiler, and G H I separate exits for the hot water in the jacket, in
the main part of the boiler, and in the tubes, so that hot water may freely flow
The apparatus is preferably of wrought iron welded without joints, seams, or
rivets, but, if desired, the apparatus may be made in sections or in any other
suitable manner.
out.
When in action, the furnace heats directly the water tubes E and the main
portion of the boiler A. The heated gases pass to the back J of the furnace, then
through the horizontal flues C between the main portion of the boiler and the
jackets to the front D, from whence they return to the back of the boiler again
through the flue at the top, to the chimney stack.
By my arrangement, I estimate that I obtain a much larger heating surface than
hitherto with a smaller grate area.
I have described one way in which my invention can be carried into effect, but it
is obvious that once given the general idea, alterations may be made in the
arrangement of flues.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, 1 declare that what I
claim is :-
1. The improvement in boilers for supplying hot water for heating buildings and
for other purposes, substantially as set forth, whereby a larger heating surface is
obtained. with a smaller grate area.

page_text: 2. In an apparatus for heating water, the special arrangement of parts, consisting
of the boiler A. the external hollow water jackets B, side flues C, and internally
arranged tubes E, the said jackets and tubes being both connected with the main
portion of the boiler A, substantially as and for the purpose described.
Dated this 24th day of July 1894.
WM. P. THOMPSON & Co.,
Of Liverpool, Manchester, Birmingham, Nottingham and London,
Patent Agents.