IMPROVEMENTS IN HORIZONTAL STEAM BOILERS OR GENERATORS
Year: 1883

page_text: LETTERS PATENT to Alfred Horatio Bell Sharpe of N° 16, Victoria Street,
Lincoln, in the county of Lincoln for an Invention of "IMPROVEMENTS IN
HORIZONTAL STEAM BOILERS OR GENERATORS”
PROVISIONAL SPECIFICATION left by the said Alfred Horatio Bell Sharpe
at the Office of the Commissioners of Patents on the 3rd February 1883.
ALFRED HORATIO BELL SHARPE of N° 16 Victoria Street, Lincoln in the county
of Lincoln "IMPROVEMENTS IN HORIZONTAL STEAM BOILERS OR GENERATORS
"
This invention relates to improvements in horizontal marine and horizontal
stationary and portable land boilers, and in the means of producing constant
circulation of water therein, and increasing the effective heating surface.
In carrying out my invention I rivet inside the fire box above the fire doors a
horizontal cylindrical, conical or elliptical water vessel or vessels, which vessel or
vessels contain horizontal or inclined fire flue or flues; or a number of horizontal
or inclined fire tubes. These fire tubes or flues pass through a tube plate at the
same end of the boiler as the fire door, and conduct the products of combustion into
the smoke box. Immediately opposite the smoke box the fire box is connected
with the back plate of the boiler part of which plate is cut away, and the opening
thus formed being provided with a fire-brick door or doors. The lower part of the
horizontal water vessel or vessels is connected with the lower part and sides of the
water space around the fire-box by means of water tubes. The horizontal water
vessel or vessels is also connected to the top of the fire box by means of circular or
elliptical water tubes. Where two water vessels are used, they are transversely
connected together and to the sides of the fire box by means of horizontal water
tubes, thus keeping up a constant circulation of water around the horizontal or
inclined fire tubes. Should a fire tube burst, it can be plugged up at either end
without blowing off steam or drawing the fire. The fire tubes are also very
accessible for cleaning as there is a door at each end as described above.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Alfred Horatio Bell Sharpe in the Great Seal Patent Office on
the 1st August 1883.
ALFRED HORATIO BELL SHARPE of N° 16 Victoria Street, Lincoln in the county
of Lincoln "IMPROVEMENTS IN HORIZONTAL STEAM BOILERS OR GENERATORS
"
This invention relates to improvements in horizontal marine, locomotive,
stationary, and portable land steam boilers, and in the means of producing constant
circulation of water therein, and increasing the effective heating surface.
In carrying out my invention I rivet inside the fire box above the fire doors a
horizontal cylindrical, conical or elliptical water vessel or vessels containing a
number of horizontal or inclined fire tubes or flues. These fire tubes or flues pass
through a tube plate at the same end of the boiler as the fire door, and conduct the
products of combustion into the smoke box. In the case of self contained multi-
tubular boilers the water vessels are placed transversely. Immediately opposite
the smoke box the fire box is connected with the back plate of the boiler part of
which plate is cut away, the opening thus formed being provided with a fire-brick
door or doors. The lower part of the horizontal water vessel or vessels is connected
with the lower part and sides of the water space around the fire box by means of
circulating water tubes. The horizontal water vessel or vessels is or are also
connected to the top of the fire box by means of circular water tubes. Where two.
or more water vessels are used, they are transversely connected together and to the
sides of the fire box by means of horizontal or inclined water tubes, thus keeping
up a constant circulation of water around the horizontal or inclined fire tubes.
In order to enable my invention to be fully understood I will proceed to describe
the same by reference to the accompanying drawing in which figures 1, and 2,
represent sectional views (figure 2 being half in elevation) of a horizontal marine
boiler constructed according to my invention; figures 3, and 4 longitudinal and
transverse sections respectively of a locomotive or portable boiler and figure 5 an
elevation half in section and figure 6 a transverse section of a self contained or
land boiler. Similar letters in all the figures represent similar or corresponding
parts.
In the marine boiler shewn in figures 1 and 2 A, A, A, are the horizontal
cylindrical water vessels rivetted inside the fire boxes B B above the fire doors CC
as shewn; D, D, are the horizontal fire tubes or flues within the water vessels AAA;
E, figure 1, shews one of the tube plates at the same end of the furnace as the fire
doors C, through which plates E, the fire tubes or flues D, pass and conduct the
products of combustion into the smoke boxes F, and chimney F. G, are the back
plates of the boiler to which the fire boxes B, are connected; immediately opposite
the smoke boxes F, are the openings H formed by cutting away the back plates G;
and I are the fire-brick doors in the said openings H, the said doors I, opening into
the fire boxes B, at the back end of the water vessels A; J, J, are the circulating
water tubes connecting the lower part of the water vessels A, with the lower part
and sides of the water spaces K, around the fire boxes B thus keeping up a constant
circulation of water around the fire tubes or flues D, and fire boxes B; L L are the
smoke box doors; M shews one of the fire brick baffles.
Should a fire tube burst, it can be plugged up at either end without blowing off
steam or drawing the fire. The fire tubes D, are also very accessible for cleaning
as there are doors I and L at each end as described above.
The locomotive or portable engine boiler shewn in figures 3, and 4, is constructed
substantially the same as the marine boiler shewn in figures 1 and 2 except that
only one cylindrical water vessel is employed and the saine letters of reference
being used to represent similar parts no further description will be necessary

page_text: In the self contained multitubular boiler illustrated in figures 5 and 6 two
horizontal cylindrical water vessels are employed placed transversely, the con-
struction being otherwise substantially the same as that of the boilers hereinbefore
described.
In all the figures the parts other than those described are of ordinary
construction.
Having thus described my invention and the best means I am acquainted with
for carrying the same into effect I wish it to be understood that what I claim to be
novel and intend to be protected by the herein in part recited Letters Patent is :-
Firstly. In horizontal marine, locomotive, portable and self contained boilers,
the horizontal water vessel (or vessels) A, in combination with the fire tubes D, and
water circulating tubes J, connecting the water vessel (or vessels) with the water
space round the fire box, substantially as hereinbefore described and represented
in the accompanying drawing.
Secondly. The improved horizontal marine, locomotive, portable, and stationary
multitubular steam boilers constructed as hereinbefore described and represented
in the accompanying drawing.
In Witness whereof I the said Alfred Horatio Bell Sharpe have hereto set
my hand and seal this thirty first day of July in the year of our Lord one
thousand eight hundred and eighty three
D
CITA DOD
A. H. B SHARTE