IMPROVEMENTS IN STEAM BOILERS TO CAUSE CIRCULATION OF WATER
Year: 1884

page_text: JAMES, BURRELL 51 New Cut Bristol County of Somersetshire Marine Engineer
do hereby declare the nature of my invention for IMPROVEMENTS IN STEAM
BOILERS TO CAUSE CIRCULATION OF WATER to be as follows:-
:-
'
This invention is for the purpose of causing a circulation of the water in a steam
boiler, which has fires in the centre, It is made thus A tube of either a round or
eliptic form is fixed horizontal across the furnace at the end of the fire-grate so as
to form a bridge for the flame to pass over, it is connected to the sides of the
furnace, there is four 4 seperate holes in the ends of the tube or sides of boiler,
which connect the inside of the tube, with the inside of the boiler, to these holes
tubes or pipes are fixed, the holes are made so as two 2 will be at the upper part
of the tube, and two 2 at the lower part, the pipes from the two, 2 upper holes, lead
up to nearly the water line of the boiler, the two 2 lower pipes lead to the bottom
part of the boiler, There is also plates fixed vertical between the combustion
chambers, at each end of the chambers, also plates are fixed between the sides of
the combustion chambers, and the sides of the boiler, These plates reach from the
bottom to the top of the combustion chamber, The top space made by these plates
is contracted In a boiler fired at one end plates are fixed between the end of
combustion chamber and the end of the boiler, also plates are fixed between the
combustion chamber and the sides of the boiler either with or without the
cross tube.

page_text: JAMES, BURRELL 51 New Cut Bristol County of Somersetshire Marine Engineer
do hereby declare the nature of my invention for IMPROVEMENTS IN STEAM
BOILERS TO CAUSE CIRCULATION OF WATER and in what manner the same is to
be performed, to be particularly described and ascertained in and by the following
statement:
The object of my invention is to cause a circulation of the water in a steam
_boiler, which has fires on the centre or of a return tubular type. The invention
consists of vertical plates being fixed between the combustion chambers at each
end reaching from the bottom to the top. The top space is contracted by the plates
being brought closer together, also plates are fixed between the sides of the com-
bustion chambers at each each end and the sides of the boiler, In a boiler having
fire grate at one end only, plates are fixed between the combustion chambers and
the sides of the boiler, also plates are fixed vertical between the end of combustion
chambers and the end of the boiler, If there is more than one combustion chamber
plates are fixed between them, If there is a horizontal tube across the furnace
which act as a water bridge at the end of the fire grate there is fixed to the upper
part and lead up to nearly the water line of the boiler and two tubes are fixed to
the lower part of the cross tube and lead to the bottom part of the Boiler, as
hereinafter described and claimed,
REFERENCES TO DRAWINGS ETC.
Six sheets of Drawings, same parts on all the sheets are marked the same.
Sheet No 1 Fig. 1. Is a section view of Boiler at the centre of cross water tube,
shewing the tubes Qattached to it, also shewing the two combustion chambers A A
with the plates B fixed between the chambers, And the plates B fixed between
the sides of the combustion chambers and the sides of the boiler.
Sheet No 2. Fig. 2 is a side view of a furnace flue having fire grates at each end,
shewing the plates B, fixed between the sides of combustion chambers and the
side of boiler it also shew the contracted space a¹ between the plates B. B, it also
shew the tubes Q fixed to the cross water Tube X.
Sheet No 3. Fig. 3. is a top plan of combustion chambers A A, shewing the
plates B fixed between the combustion chambers, also plates fixed between the
combustion chambers and the sides of the boiler with the contracted space a¹.
Sheet No 4 Fig 4. is a side view of furnace flue with fire grate at one end and
the combustion chamber A the plates B are fixed between the sides of combustion
chamber and the sides of the Boiler, also the plates B¹ are fixed between tlie end
of combustion chamber and the end of the boiler, it also shew the contracted space
a¹ between the plates B.
Sheet No 5. Fig. 5, Is an end view of the two combustion chambers, A A with
the plates B¹ fixed between the ends of chambers and the end of the boiler, also the
plates B fixed between the combustion chambers, and between the combustion
chambers and the sides of the boiler.
Sheet No 6. Fig. 6 is a top plan of combustion chambers A A and the ends of
plates B & B it also shew the space a¹ between the plates. The action of the
water between these plates is that the heat from the fuel acting on the sides or end
of combustion chambers cause the water to ascend rapidly in these spaces and
pass out of the opening at the top gainging its supply direct from the lowest part of
the boiler, by this means it cause the water to circulate raising from the bottom to

page_text: the top, also the heat acting on the cross water tube when one is fixed will cause
the water to ascend through the two lower tubes into the cross tube and ascend
up the two upper tubes and pass out at the top continually.
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
1st The fixed plates between the combustion chambers, B and the fixed plates B
between the sides of combustion chambers and the sides of boiler substantially as
described for the purpose specified.
2nd The fixed plates between the end of combustion chamber and the end of
boiler for the purpose specified.
3rd The four tubes fixed as described to the cross water tube at the end of fire
grate, for the purpose specified to cause circulation of water.