Year: 1885

page_text: We, WILLIAM CLARKE, ABEL HENRY CHAPMAN, CHARLES ALGERNON PARSONS,
and JOHN BROKENSHIRE FURNEAUX, all of Victoria Works, Gateshead-on-Tyne in
the County of Durham, Engineers, do hereby declare the nature of this invention
to be as follows:-
The object of this invention is to produce a strong, simple and efficient steam
generator that shall afford a large amount of heating surface without liability to
leakage or to choking up and injury from consequent burning, as is the case with
some constructions of multi-tubular boilers. The fire-box is of approximately conical
shape, the upper part being surrounded by an annular water space that cominu-
nicates with an outer annular water space terminating at its upper part in a water
and steam space that may resemble that of an ordinary vertical boiler. Above the
fire-box there is a smoke box, also of approximately conical shape but inverted,
and this smoke box is surrounded by an annular water space united at its lower
part with the upper part of the first mentioned annular water-space. The products
of combustion pass from the fire-box into one or more annular flues, wherein they
are divided and after travelling along this annular flue the two portions of products
of combustion pass into the smoke box and thence away by the uptake.
An arrangement of steam generator on this principle is shown in the annexed
drawings by way of illustration of the nature of the invention. A is the shell of
the boiler, B the water and steam space, C the outer water casing, D the fire grate,
E the fire-box, F the annular flue, Ġ the smoke box and H the uptake.

page_text: We, WILLIAM CLARKE, ABEL HENRY CHAPMAN, CHARLES ALGERNON PARSONS,
and JOHN BROKENSHIRE FURNEAUX, all of Victoria Works, Gateshead-on-Tyne, in
the county of Durham, Engineers, 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 :—
The object of this invention is to produce a strong, simple and efficient steam
generator that shall afford a large amount of heating surface without liability to
leakage or to choking up and injury from consequent burning, as is the case with
some constructions of multi-tubular boilers. The fire-box is of approximately
conical shape, the upper part being surrounded by an annular water space that
communicates with an outer annular water space terminating at its upper part
in a water and steam space that may resemble that of an ordinary vertical boiler.
Above the fire-box there is a smoke box, also of approximately conical shape, but
inverted, and this smoke box is surrounded by an annular water space united at its
lower part with the upper part of the first mentioned annular water-space. The pro
ducts of combustion pass from the fire-box into one or more annular flues, wherein.
they are divided and after travelling along this annular flue the two portions of
products of combustion pass into the smoke box and thence away by the uptake.
An arrangement of steam generator on this principle is shown in the annexed
drawing by way of illustration of the nature of the invention. A is the shell of
the boiler, B the water and steam space, C the outer water casing, D the fire grate;
E the fire-box, F the annular flue, Ġ the smoke box, and H the uptake.
Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed, we declare that what
we claim is:-
:-
1. In a steam generator the combination of a fire-box of approximately conical
shape, a water space surrounding the upper part thereof, a smoke box of similar
shape to the fire-box, but inverted, a water space surrounding the smoke box, and
a flue or flues connecting the fire-box with the smoke box, the arrangement being
such that both the inner and outer walls of the water spaces surrounding the upper
part of the fire-box and the smoke box are heated substantially as described. .
2. The improved steam generator substantially as described with reference to
and illustrated in the drawing annexed.