horizontal or nearly horizontal furnaces and flue tubes
Year: 1894

page_text: Date of Application, 4th July, 1894
Complete Specification Left, 4th Apr., 1895-Accepted, 11th May, 1895
improvешены дваш монета
JAMES BLAKE Marine House Redcar Yorkshire Engineer do hereby declare
the nature of this invention to be as follows:-
My invention relates to vertical boilers having horizontal or nearly horizontal
furnaces and flue tubes.*
1 cut away two opposite sides of the vertical cylindrical shell from the bottom or
near the bottom to a point below the top and insert flat, curved or angular plates
which are perforated to receive the ends of the furnace or furnaces and the flue
tubes.
In the bottom of the aforesaid shell I fix a base plate and I stay the said plate and
the lower part of the shell by stays connected to both.
I may fix a stay or stays across the shell above the furnace or furnaces to assist
in supporting the parts where perforated for the furnace openings and in some
cases I fix external compensating stays or plates across the said openings to the
shell of the boiler or I provide the ends of the furnace or furnaces with horizontal
tubes which may have stays passing through them and fixed to the boiler shell.
The furnace or furnaces may be cylindrical, oval or partly cylindrical and partly
flat and may be contracted at either or both ends.
In some cases I may make, the furnace or furnaces "dry bottomed " and attach
the bottom edges of the said furnace or furnaces to the shell of the boiler and I
may fix suitably shaped plates to the lower parts of the boiler shell for convenient
attachment to the edges of the furnace or furnaces.
The products of combustion pass from the furnace or furnaces into a combustion
chamber thence through tubes to a smoke-box having an outlet to a chimney.
Dotal thi. Thi≤1 dow of Iul. 1804
JAMES BLAKE.
Improvements in Steam Generators.
JAMES BLAKE Linthorpe Avenue Middlesbrough Yorkshire Engineer, 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 :-
My invention relates to vertical boilers having horizontal or nearly horizontal
furnaces and flue tubes.
I cut away two opposite sides of the vertical cylindrical shell from the bottom
or near the bottom to a point below the top and insert flat, curved or angular
plates which are perforated to receive the ends of the furnace or furnaces and the
flue tubes.
In the bottom of the aforesaid shell I fix a base plate and I stay the said plate
and the lower part of the shell by stays connected to both.
I
may
fix a stay or stays across the shell above the furnace or furnaces to assist

page_text: in supporting the parts where perforated for the furnace openings and in some
cases I fix external com pensating stays or plates across the said openings to the
shell of the boiler or 1 provide the ends of the furnace or furnaces with horizontal
tubes which may have stays passing through them and fixed to the boiler shell.
The furnace or furnaces may be cylindrical, oval or partly cylindrical and partly
flat and may be contracted at either or both ends.
In some cases I may make the furnace or furnaces "dry bottomed " and attach
the bottom edges of the said furnace or furnaces to the shell of the boiler and I
may fix suitably shaped plates to the lower part of the boiler shell for convenient
attachment to the edges of the furnace or furnaces.
The products of combustion pass from the furnace or furnaces into a combustion
chamber thence through tubes to a smokebox having an outlet to a chimney.
And in order that my invention may be well understood I will describe the
same with reference to the accompanying drawings wherein Fig. represents a
vertical section of a boiler constructed in accordance with my invention Fig. 2
being a sectional plan on the line A B and Fig. 3 a front elevation. In this
example the vertical cylindrical shell of the boiler is partly cut away on two
opposite sides and two flat plates a a. bent outward at their upper ends bb unite,
with the cylindrical portion of the boiler shell. The plates a a are perforated to
receive the ends of the furnace and the ends of the flue tubes . The base
plate e is fixed to the lower end of the boiler shell and stays d serve the double
purpose of staying the base c and of partially sustaining the side stresses upon the
lower part of the boiler shell thereby assisting to compensate for the openings e e
for the furnace ends in the plates a a. Stays ff are fixed across the boiler shell,
above the furnace. In some cases I may fix compensating plates or stays across
the openings e e in the plates a a au example being shewn at g.
The generator is provided with a furnace having its ends attached to the
plates a a and above are fine tubes j through which the products of combustion
pass on their way from the furnace to the chimney. The combustion chamber k
is formed of plates lined with brickwork or other refractory material. By
this construction I am enabled to make a powerful steam generator at small cost.
Fig. 4 and 5 illustrate a modification Fig. 4 being a vertical section of the
boiler and Fig. 5 a sectional plan on the line C. D. The plates a a are bent
inwards at their lower ends r. r..
By this formation the stresses upon the lower parts of the boiler shell are
reduced and also the size of the base plate c whereby I am enabled to dispense
with some of the stays..
According to an arrangement shewn by the vertical section Fig. 6 and the
sectional plan on the line E. F Fig. 7 the plate a' is bent outwards at its lower
end m to meet the cylindrical portion of the shell . In this modification the
furnace ends are contracted and the openings e e in the plates a a¹ are corre-
spondingly reduced whereby some of the compensating stays may be dispensed
with. By this construction the length of firegrate is increased.
Fig. 89 and 10 illustrate another modification Fig. 8 being a vertical section
of the boiler Fig. 9 a sectional plan on the line G H and Fig. 10 a vertical section
on the line K. In this example the furnace his "dry, bottomed "being arched
at the top as regards its cross section and open at the bottom and is provided with
an end plate p. Shaped plates c c are fixed to the lower end of the boiler shell
and the edges of the furnace are attached to the said shaped plates and to the
boiler shell. The furnace is connected with the combustion chamber by the short
tubes through which the products of combustion pass from the furnace h to the
combustion chamber k. By this construction I am enabled to make a generator
of reduced height.
In any of the examples illustrated by Fig. 1, 2, 3, 4, 5, 6 and 7 I may provide
more than one furnace.
In any of the examples illustrated by the drawings I may make the plates a a
of curved or angular form as regards their horizontal section.

page_text: Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is
The steam generators formed and constructed substantially as set forth and
indicated herein before and by the accompanying drawings.
Dated this Third day of April 1895.
JAMES BLAKE.