Improvements in Hot Water Heating Apparatus.
Year: 1894

page_text: Date of Application, 6th Oct., 1894
Complete Specification Left, Eth July, 1895-Accepted, 10th Aug., 1895
Improvements in Hot Water Heating Apparatus.
1, JOHN THOMAS SOFTLY, of 15 Church Street, Monkwearmouth, in the
County of Durham, Hot Water Engineer, do hereby declare the nature of this
invention to be as follows:-
My invention relates to improvements in that class of hot water heating apparatus,
wherein an open flow and return system of pipes, is connected to a boiler heated by
a furnace or other suitable means, and the object of my invention is to reduce the
amount of water to be heated by the furnace, while retaining the same amount of
surface available for radiation.
I attain the said object in the following mauner. In apparatus of this class, as
ordinarily constructed, the chimney flue passes directly away from the boiler and
the flow and return pipes are full of water; but in my improved arrangement, the
fnes carrying the products of combustion away from the furnace consist of pipes
placed within the flow and return pipes, leaving a sufficient annular space around
them for water and entering, at the end of the system, an upright chimney. By
this means the amount of water to be heated is considerably reduced, while the
extent of radiating surface is unaltered, and the heat of the escaping products of
combustion from the furnace is more thoroughly absorbed by the water, than is the
case in the usual arrangement.
Dated the 5th day of October 1804
AMBROSE MYALL,
2, Lancaster Place, London, W.C., Agent for the Applicant.
Improvements in Hot Water Heating Apparatus.
I, JOHN THOMAS SOFTLY, of 15 Church Street, Monkwearmouth, in the
County of Durham, 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 :-
My invention relates to improvements in that class of hot water, heating apparatus,
wherein an open flow and return system of pipes is connected to a boiler heated by
a furnace, or other suitable means, and the object of my invention is to reduce the
amount of water to be heated by the furnace, while retaining the same amount of
surface available for radiation.
I attain the said object in the following manner. In apparatus of this class, as
ordinarily constructed, the chimney flue passes directly away from the boiler and
the flow and return pipes are full of water; but in my improved arrangement, the
flues carrying the products of combustion away from the furnace, consist of pipes
placed within the flow and return pipes, leaving a sufficient annular space around
them for water, and entering at the end of the system an upright chimney. By
this means the amount of water to be heated is considerably reduced, while the
extent of radiating surface is unaltered, and the heat of the escaping products of
combustion from the furnace, is more thoroughly absorbed by the water, than is the
case in the usual arrangement.

page_text: In the accompanying sheet of drawings, which form part of this Specification,
and in which similar letters of reference denote similar parts throughout,
Fig. 1 is a longitudinal sectional elevation of a heating apparatus, of the class
previously described, constructed in accordance with any invention, and
Fig. 2 is a cross section through AA in Fig. 1.
B is a boiler, with slow combustion furnace C of the ordinary type, but any
other suitable form of boiler and furnace may be employed.
D is the flow pipe and E the return pipe, they are connected at one end to the
boiler B, and at the other to a circulating tank F, in the usual' manner. Inside of
each of the pipes D and E is a flue pipe H opening at.one. end. into the furnace C
and at the other end into a chimney J, so that the water in the said pipes D and E
is confined to the annular space K, as shewn most clearly in Fig: 2, and the products
of combustion from the furnace, pass through the said pipes H to the chimney, ns
indicated by the arrows:
If the pipes D and E be of the ordinary size, the amount of contained water
will be considerably reduced; while the radiating. surface remains unaltered, but if
the said pipes be increased in size; so that the amount of water is the same, or
about the same as in the ordinary arrangement, then the radiating surface will be
increased.
In either case, the water will be more effectually heated' with even a reduced'
consumption of fuel, and an increase of heating capacity obtained by means of my
invention.
The method shewn in the drawing, of connecting the various pipes is convenient
in practice, but any other suitable arrangements, or devices may be employed for
this purpose.
If desired, the internal flue pipe may be applied' to the flow pipe D'ouly, the
return pipe E being of the ordinary construction.
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. In a heating apparatus of the class described, the combination, with the flow
and return pipes D and E, of internal flues H communicating between the
furnace C and chimney J, substantially as and for the purpose herein described.
2. In a heating apparatus of the class described, the combination, with the flow
pipe D of an internal flue H, communicating between the furnace.C and chimney J,
substantially as and for the purpose herein described.
Dated this 8th day of July 1895:
AMBROSE MYALL,,
2 Lancaster Place, London, W.C.,. Agent for the. Applicant.