IMPROVEMENTS IN BOILER AND OTHER FURNACES, SMOKE CONSUMING AND STEAM GENERATING
Year: 1859

page_text: PROVISIONAL SPECIFICATION left by Joseph Apsey and William George
Buckwell at the Office of the Commissioners of Patents, with their
Petition, on the 21st November 1859.
We, JOSEPH АPSEY, of Cornwall Road, Lambeth, in the County of Surrey,
Engineer, and WILLIAM GEORGE BUCKWELL, of the Phoenix Stone Works,
East Greenwich, in the County of Kent, Engineer, do hereby declare the
nature of the said Invention for "IMPROVEMENTS IN BOILER AND OTHER FURNACES,
SMOKE CONSUMING AND STEAM GENERATING," to be as follows:-
Our improvements consist in forming the furnace bars of a continuous or
endless tube or hollow vessel, so arranged that the air feed shall be a down
draught or otherwise towards the fire through and between the spaces formed
by the said continuous tube fire bar or bars.
In low-pressure boilers under two atmospheres we take the water from the
boiler and force it through the continuous tube fire-bars, by which means we
increase to double, or more or less, the pressure of steam without increasing the
pressure, or otherwise altering the pressure in the boiler, increasing the power
of the engine and boiler without necessarily increasing the consumption of fuel
while at the same time the smoke or other products of combustion are con-
sumed with gain. In boilers constructed for high-pressure steam, in some
instances we would pass the feed to the boiler through the continuous tube
fire-bars, but generally we prefer and recommend the water to be pumped
from the boiler through the continuous tube fire-bars.

page_text: In using certain spiral coil tube boilers or steam generators, we use or prefer
using a cupola boiler to contain the spiral coil, with one or more continuous
tube fire bar or bars having a multitubular funnel through the water area from
below the ash-pit to the top of the cylinder forming the boiler, such cylinder
being continued to form a receptacle for steam chest, the top terminating in a
funnel, but where there is less water space than sufficient for passing the
necessary funnel tubes we case the boiler by a smoke or heat cylindrical and
spherical top, containing jacket, terminating in a large funnel, in which, when
desirable, the steam chest may be placed. We also use this form of boiler
without a spiral coil, but in that case the upper part of the cupola fire-box
may be studded with cup or cone indentions, but we do not claim spiral coils
or cups, or cone indentions, as necessary to the principle of our Invention.
The pressure on the boiler, for example, being twenty, the water with that
pressure is, by a suitable pump, forced into the continuous fire-bar tube, being
thereby raised in pressure into steam without requiring additional fuel, or in
any way increasing the pressure in the boiler; the pressure of steam being
regulated by safety valves, as required.
We wish it to be understood we do not confine ourselves to precise details, nor do
we claim the use of continuous spiral tubes used as steam generators; but what
we claim is the principle of using a continuous tube or vessel of continuity as
fire-bars, so placed as to receive a down or other draught towards or through
the fire to the fire-bars, for increasing steam in quantity or pressure, or both,
and consuming the products of combustion, as herein described
way of
example, as it is adaptable to any and all boilers; and the principle of our
Invention may be otherwise applied with variation of form or arrangements
without any difference of the result obtainable, and claimed by us, as herein
described.