IMPROVEMENT IN BOILERS FOR HOT WATER CIRCULATION FOR HEATING PURPOSES
Year: 1884

page_text: DECRETATION.
I, JOHN JACKSON, of 13 Iron Market Newcastle under Lyme, in the County of
Staffords Heating Engineer do hereby declare the nature of my invention for
IMPROVEMENT IN BOILERS FOR HOT WATER CIRCULATION FOR HEATING
PURPOSES to be as follows:-
The improvement relates mainly to Boilers of a type described in the specifi-
cation of a former patent granted to me No 3133 in this year and consist of the
fire box being formed of tubes so arranged as to form the two sides one end and
top and so made that the heat from fire box passes between the tubes at end of
Boiler and returns along each side and then over top through the upper tiers of
pipes or baffles. As a means of making the Boiler economical in consumption
of fuel and extracting the utmost amount of heat from the products of combustion
an outer casing of tubes of same form as the fire box may be placed outside of fire
box with a space of a few inches between them to form a flue as before described.
As a means of filling the Boiler or apparatus and preventing any loss of water or
other liquid I employ a five way piece with two valves fixed permanently upon
a spindle and connected by two of the ways to the circulating pipes The third and
fourth ways serving for the pump connection and the discharge respectively The
fifth way serving for the chamber in which the spindle of valve rises and falls
during filling and closing The valves are so arranged that when the pump is put
in action the valve rises from its seat and so closes the passage of circulation and
causes the water or other liquid to be forced through the whole of the system and
pass away by the discharge outlet When the pumping is finished the valve comes
down upon its seating and thereby closes the pumping and discharge openings and
allowing the pump to be disconnected and the opening made secure without any
discharge or loss of water or other liquid.

page_text: COMPLETE SPECIFICATION.
I JOHN JACKSON of 13 Iron Market Newcastle under Lyme in the County of
Staffordshire Heating Engineer do hereby declare the nature of my invention for
IMPROVEMENT IN BOILER FOR HOT WATER CIRCULATION FOR HEATING PURPOSES
and in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement :-
First A Boiler or heater consisting of a number of tubes so arranged and connected
together at their ends that the water or liquid to be heated shall circulate from one
tube to the other until it has passed through the whole of the tubes.
When the water circulates through the tubes in the above mentioned manner the
flow pipe from one tube is connected to the return pipe of another tube and so on
as to cause a continuous circulation through the whole of the tubes and also to
obtain the greatest amount of heating surface The fire box is so formed of tubes
at the side and back that the heated gasses are conducted around the outside of
fire box and then through flues above fire box formed by tubes placed close together
longitudonally so as to form a series of baffles and thereby prevent the products of
combustion from passing direct to the chimney.
I would have it understood that I do not confine myself to any number of tubes
either in height or width the number of which would be determined by the extent
of area required to be heated.
(Second) As a means for filling the apparatus with water or other liquid
I employ a five way piece fitted with two discs fixed on a spindle the said five way
piece being connected to the apparatus by the two ways B and C. When it is
desired to fill the circulating pipes and Boiler or Heater a pump is attached to one
end of the five way piece and water or other liquid caused to flow through the said
circulating pipes and Boiler or Heater and drive out the air through the open end of
five way piece until the circulating pipes Boiler or Heater are filled with with water
or other liquid A cap is then screwed on the five way piece at D x thereby forcing
the spindle down and placing the two disc in position and allow the pump to be
detached without any discharge or loss of water or other liquid and the said ends
being further secured by caps or other sealed devices.
My said invention is illustrated in the accompanying Sheet of Drawings.
Fig. 1 is a front elevation of Boiler or Heater.
Fig. 2 is a longitudonal section.
Fig. 3 is a transverse section through fire box and baffles of Boiler or Heater.
Fig. 4 is an elevation of same showing the flow and return pipe connected to
Boiler or Heater in such a manner that the same water or liquid circulates through
the whole of the pipes. A brick setting and casing B cast iron front. C, door for
cleaning between tubes: D, fire box feed door. E, flue Ex ash pit door. F com-
bustion chamber Gash pit H, tube forming baffles. I tubes forming fire box
J short pipe connecting fire box tubes. K short pipe connecting baffle tubes.
L, tubes, forming fire bars. N, out flow pipe O return pipe P, filling piece
bereinafter described. The fire grate here is formed of piping but may be seperated

page_text: from and formed of cast iron fire bara. The baffle tubes may be seperated from
and the and the fire box only used as a Boiler or Heater or where necessary,
The baffle tubes only may be used as a Boiler or Heater.
Fig. 5 is a vertical section of my apparatus called a pumping or filling piece
previously marked P on Fig. 4 for filling the Boiler or Heater and all pipes in
connection therewith,
A, B, C D & D× are the five ways of the piece EE are the discs G the
spindles connecting the discs E, E, together and for placing them in their proper
position F, is a diaphram placed so as to regulate the position of discs and
prevent the discs being driven out during the filling of apparatus The pump for
charging the apparatus with water or other liquid and for expelling the air is
connected at D, and forces the water through C into the apparatus and pipe and
thence return through B and discharges through A. When the Boiler or Heater
and circulating pipes are thoroughly charged a cap is screwed on the five way piece
at D x thereby forcing the discs E, E, into position shown by dotted lines at H
allowing the pump to be detached without any loss or discharge of water or other
liquid The ends A B C D being made secure by caps or other sealed devices.
Although the apparatus herein described is mainly suitable for that system of
heating by circulation of water known as high pressure wherewith expansion tubes
or other means of expansion appliances are used I do not confine myself to any
particular pressure nor the use of expansion appliances.
.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is
First. The arranging and combining together of any number of tubes longitudonally
and connected together at their ends any required number in width and number of
layers in height of baffle together with fire box formed of any number of tubes in
height and so connected together at their ends as before described together with the
arrangement of furnace or fire box and flues for heating same for the purpose herein
described..
Second. The pumping or filling piece so constructed as to allow of pump being
detached without any loss or discharge as herein described.
Dated thie 15th day of June 1885.