Improvements in Hot Water Boilers, also applicable to Steam Boilers.
Year: 1892

page_text: Date of Application, 8th Jan., 1892
Complete Specification Left, 8th Oct., 1892-Accepted, 12th Nov., 1892
PROVISIONAL SPECIFICATION.
Improvements in Hot Water Boilers, also applicable to Steam
Boilers.
1, WILLIAM HENRY WESTON, of Mill Street, Altrincham, Cheshire,
Horticultural Engineer, do hereby declare the nature of my said invention to be as
follows:-
This invention relates to an improved horizontal hot water boiler consisting
of an outer shell and an inner concentric shell, the latter being held away from
the outer shell by suitable stays or supports to form a water space. The rear end
of the central flue above the ash pit is closed by a hollow casing or partition
composed of sheet metal plates which communicates with the water space of the
boiler and is provided with two or more transverse passages or openings for
the escape of the heated gases and products of combustion given off by the
furnace.
This hollow fire-bridge or partition affords additional heating surface for
the water and also utilises and intercepts the waste heat before it passes up the
chimney.
The fire bars of this improved boiler are sometimes made hollow the rear
ends of such bars opening into the hollow casing aforesaid and the front ends
of the bars opening into a hollow dead plate communicating with the water
space of the boiler thus affording additional space for the circulation of the water
and serving to keep the bars cool.
These improvements are equally applicable to steam boilers.
נית
1
1000
JOHN G. WILSON,
Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Hot Water Boilers, also applicable to Steam
Boilers.
I, WILLIAM HENRY WESTON, of Mill Street, Altrincham, Cheshire,
Horticultural Engineer, do hereby declare the nature of my said 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 relates to an improved horizontal hot water boiler consisting
of an outer shell and an inner concentric shell, the latter being held away from
the outer shell by suitable stays or supports to form a water space. The rear
end of the central flue above the ashpit is closed by a hollow casing or partition
which communicates with the water space of the boiler and is provided with two or
more transverse passages or openings for the escape of the heated gases and
products of combustion given off by the furnace.
This hollow casing or partition affords additional heating surface for the water
and intercepts the waste heat before it passes up the chimney.
The fire bars of this improved boiler are sometimes made hollow the rear ends of
such bars opening into the hollow casing aforesaid and the front ends of the bars
opening into a hollow dead plate, thus affording additional heating surface and
serving to keep the fire bars cool.
On the accompanying drawing (Sheet 1) Fig. 1 is a front exterior view and
Fig. 2 a side sectional view of my improved hot water boiler.

page_text: In accordance with my invention A is the outer shell and B the inner concentric
shell of the boiler held apart to form the water space C. D is the hollow casing
or partition (seen separately in Figs. 3 and 4) which forms a fire bridge and com-
pletely or partially fills up the upper end of the flue, a space E being by preference
left between the inner shell B and casing D to form an exit for the smoke and
products of combustion.
This hollow casing or fire bridge is formed with transverse openings or orifices F
(see Fig. 4) for the further escape of the smoke and heated products of combustion
and said casing is also formed or provided with an inlet orifice I communicating by
pipe J with the water space C and with an outlet orifice G also communicating
with the water space C by pipe H.
In some cases I employ hollow fire bars (see Figs. 2, 5 and 6) composed of cast
iron tubes 1 to 7 turned down to fit into sockets opening into the hollow fire bridge
at one end and into similar sockets M opening into a hollow dead plate M¹ (sce
Figs. 7 and 8) at the other end; effectual joints being made with the sockets by
means of iron filings and roping rammed into the spaces between the tubes and
the sockets.
To promote the circulation or flow of water through the said hollow bars the
casing D is divided into two chambers N and O by the partition D¹ the three
central fire bars 3, 4, 5 opening into the chamber N and the fire bars 1, 2, 6 and 7
opening into the chamber consequently the flow of water is caused to pass
through the central bars and return again through the side bars.
The chamber N communicates with the water space by means of the pipe J
whilst the chamber communicates with the water space by means of the
pipe H.
A hot water boiler constructed in accordance with my invention is found very
effective for rapidly heating water and driving it through a considerable length of
piping
These improvements are equally applicable to steam boilers.
Having thus 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 :-
1st. A hot water or other similar boiler having a hollow casing or fire bridge D
with transverse passages F substantially as set forth.
2nd. A hot water or other similar boiler having a set of hollow fire bars in
combination with a hollow divided casing or fire bridge and hollow dead plate
mounted and arranged substantially as set forth.
Dated this 7th day of October 1892.
JOHN G. WILSON,
Agent.