Improvements in and connected with Steam Boilers and Furnaces therefor.
Year: 1891

page_text: Date of Application, 6th June, 1891
Complete Specification Left. 6th Apr., 1892-Accepted, 7th May, 1892
PROVISIONAL SPECIFICATION.
Improvements in and connected with Steam Boilers and Furnaces
therefor.
WILLIAM CHRISTOPHER OWSTON, Estate Agent, Carleton, Pontefract. I do
hereby declare the nature of this invention to be as follows:-
To improve the circulation of water in a boiler used for raising steam (and
having a flue, or flues, running through it, in the ordinary way,) I propose to form
two furnaces, in one flue, by fixing a row of tubes, down the centre, from the front
of the furnace, to the end of the fire bars. The tubes becoming heated, by the
burning fuel, in the furnaces, causes the water to circulate, up them. To consume
the smoke, given off by the fuel, the furnaces are provided with dampers, & fired
alternately. The damper being shut, in the one having fresh fuel put on, which
causes the smoke to pass between the tubes, placed some distance apart, for that
purpose, and then over the hot fuel in the other furnace, which causes it to be
consumed, should extra circulation not be required, the furnaces can be formed in
the flues, in the usual way, (one furnace in each flue,) having tubes or openings
leading from one furnace to the other, through which the smoke can pass, & be
consumed as described above.
COMPLETE SPECIFICATION.
Improvements in and connected with Steam Boilers and Furnaces
therefor.
WILLIAM CHRISTOPHER OWSTON, Carleton, Pontefract, Estate Agent, 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:-
To improve the circulation in the fore end of a boiler used for raising steam,
having a flue (A) Fig. 1 running through it. The flue is made of sufficient size to
allow of its being divided at the fore end, from the dead head (B. Fig. 1) (at the
end of the fire bars), to the furnace doors (C. Fig. 1) into two furnaces (D. D. Fig. 1)
by having a row of tubes E. Fig. 1 (open at the ends & connected with the boiler)
down the centre.
Each furnace is provided with a damper F Fig. 1 at the dead head B.
Fig. 1. The damper, being shut in the furnace having fresh fuel put on,
which causes the heated products of combustion to pass between them and round
the tubes, and afterwards over the incandescent fuel in the other furnace,
from which they escape through the usual opening, over the dead head, left
uncovered, by the damper at the end of this furnace. The heat passing between
the tubes causes the water in them to circulate freely. The black smoke given off
by the green coal in the furnace having the damper closed, is burnt when passing
over the incandescent fuel in the other. Boilers being constructed with two or more
small flues (AA) Fig. 2 & having one furnace (B B Fig. 2 in each flue, can have
an opening (C Fig. 2) made from one flue to the other to allow the products of
combustion to pass,
the dampers being worked as described above.

page_text: allow of the furnaces being fired alternately, so that the products of combustion
given off by the green fuel in one furnace, may be made to pass over the incan-
descent fuel in the other & vice versa:
Dated this 5th day of An 1905
W. C. OWSTON.