IMPROVEMENTS IN THE CONSTRUCTION OF STEAM BOILERS
Year: 1884

page_text: I FREDERICK DUMELLA ROSE of Flixton near Manchester Engineer, do herebý
declare the nature of my invention for "IMPROVEMENTS IN THE CONSTRUCTION OF
STEAM BOILERS," to be as follows:-
The objects of the improvements are to construct steam boilers of the class
known as "sectional" which shall be capable of internal or central firing, and to
enable the tubes composing the sectional boiler to readily obtain the requisite heat,
and to facilitate cleaning purposes.
To accomplish this and to effect my improvements, I arrange a convenient
number of tubes longitudinally side by side, by preference so that their ends form
one or more rings, either circular, eliptical or oval. In case of more than one
ring, the same are arranged in concentric rings, but other forms may be adopted.
The ends of these tubes are.attached to a plate at one end of the series, and to
another plate at the other end thereof, each of which plates forms one side of a
chamber, by preference circular, making complete water communication possible
between all the tubes at each end.
Through these chambers, by preference through the centre thereof, is an opening
wide enough to admit of firing, and which forms a flue for internal or central firing,
the whole arrangement being suitably enclosed in a casing of metal or fire-brick
or both.
Suitable openings are formed in one or both chambers for the purposes of
connection with a steam chamber, and for clearing out sediment, and the front and
back plates may be made capable of removal for facilitating the cleaning of the
tubes. Two or more sets of chambers and tubes may be coupled up or joined
together, either end to end, side by side, or other convenient manner if required.
In practice, the heated gases play about the outer surfaces of the tubes first
mentioned, and the flues formed in the front and back chambers, passing thence
through flues provided for that purpose to the front, and then back again, through
suitable flues to the chimney.
0
The number, shape, and size of the tubes may be varied, and the chambers may
be variously formed without.departing from the peculiar character of the invention,
which consists of the employment of water chambers connected together by sections
onwater tubes arranged in rings or other suitable forms for the construction of
steam boilers in such manner as to be capable of being internally or centrally fired..
Dated this 25th day of January 1884
WILLIAM. GADD,
Consulting Engineer,
64, Barton Arcade, Manchester,
Agent.

page_text: I, FREDERICK DUMELLA ROSE, of Flixton, near Manchester, Engineer, do hereby
declare the nature of my invention for "IMPROVEMENTS IN THE CONSTRUCTION
OF STEAM BOILERS," and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement :-
The objects of the improvements are to construct steam boilers for stationary
marine or locomotive purposes of the class known as "sectional," which shall be
capable of internal or central firing, and to enable the tubes composing the
sectional boiler to readily obtain the requisite heat, and to facilitate cleaning
purposes.
To accomplish this, and to effect my improvements, I arrange a convenient
number of tubes longitudinally side by side, by preference so that their ends form
one or more rings either circular eliptical or oval or straight sided figures. In case
of more than one ring, the same are arranged by preference in concentric rings, but
other forms may be adopted.
The ends of these tubes are attached to a plate at one end of the series and to
another plate at the other end thereof, each of which plates forms one side of a
chamber by preference circular, making complete water communication possible
between all the tubes at each end.
Through these chambers, by preference through the centre thereof, is an opening
wide enough to admit of firing, and which forms a flue for internal or central firing,
the whole arrangement being suitably enclosed in a casing of metal or firebrick
or both.
•
Suitable openings are formed in one or both chambers for the purposes of
connection with a steam chamber, and for clearing out sediment, and the front and
back plates may be made capable of removal for facilitating the cleaning of the
tubes.
Two or more sets of chambers and tubes may be coupled up or joined together,
either end to end, side by side, or other convenient manner if required.
In practice the heated gases play about the outer surfaces of the tubes first
mentioned, and the flues formed in the front and back chambers; passing thence
through flues provided for that purpose to, the front, and then back again through
suitable flues to the chimney.
The number shape and size of the tubes together with their distances apart may.
be varied, and the chambers may be variously formed without departing from the
peculiar character of the invention, which consists of the employment of water
chambers connected together by sections or water tubes arranged in, rings or other
suitable forms for the construction of steam boilers in such manner as to be capable
of being internally or centrally, fired.
The invention forms a modification of my invention for "Improvements in the
construction of steam boilers" for which I have already filed in the Parent
Office a complete specification with drawings under the number 2165 and dated
January 26th 1884 such modification being obtained by dispensing with the inner
tubes and special combustion chamber or chambers shewn in the drawings
referred to.
Variations in detail of this my present invention may be made and the same
may be employed as a water heater or heating apparatus. And cross circulating.
tubes may be employed therewith or not as may be found desirable.

page_text: 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
The construction of sectional steam or hot water boilers for stationary marine or
locomotive purposes composed of tubes arranged in one or more rings, either of
circular oval eliptical or other forms, attached to water chambers at each end in
such manner that the whole shall be capable of internal firing substantially
as described.
WILLIAM GADD,
64, Barton Arcade, Manchester,
Agent.