Year: 1896

page_text: Date of Application, 25th Sept., 1896
Complete Specification Left, 25th June, 1897-Accepted, 31st July, 1897
1 EDWARD HENRY JAMES CECIL. GILLETT, of the Firm of E. Gillett & Co. of
Hanworth Road, Hounslow in the County of Middlesex, Engineer and Launch
Builder, do hereby declare the nature of this invention to be as follows:-
The invention has for its object improvements in water tube or sectional steam
boilers with a view to obtain an efficient and convenient arrangement of parts
combined with economy in the preparation of the water tubes and facility for
connecting their upper ends with the upper section or water chamber.
For this purpose I employ an annular lower section or water chamber and a
longitudinal cylindrical upper section or water chamber. To the centre of the upper
section or chainber and depending therefrom is fixed a vertical cylindrical or a conical
chamber or water space.
This cylindrical or conical depending chamber or water space is completely open to
the upper or longitudinal cylindrical section or chamber and it is connected with
the lower or annular section or chamber by means of either sinuous or straight water
tubes fixed in both the sides and bottom of said depending section or chamber whilst
the upper or longitudinal cylindrical section or chainbsr is connected at its ends with
the lower or annular section or chamber by means of downcast water tubes.
By this construction of steam boiler I also dispense with the necessity for
enclosing the fire box with fire bricks as has heretofore in some cases been necessary.
The whole boiler excepting the down cast tubes is enclosed in a light sheet iron casing
provided with suitable haffle plates and terminating at its upper end in the uptake.
For larger steam boilers the upper or longitudinally cylindrical section or chamber
would be provided with two or more depending chambers and the boiler would be
provided with an equal number of fire boxes, the said depending chambers being
connected as hereinbefore described by water tubes with a like number of lower or
annular chambers or sections.
10
Improvements in Water Tube or Sectional Steam Boilers.
I, EDWARD HENRY JAMES CECIL GILLETT, of the Firm of E. Gillett & Co., of
Hanworth Road, Houuslow, in the County of Middlesex, Engineer and Launch
Builder, do hereby declare the nature af 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 invention has for its object improvements in water tube or sectional steam
boilers with a view to obtain an efficient and convenient arrangement of parts

page_text: combined with facility for connecting the upper ends of the water tubes with the
upper section or water chamber.
My invention is illustrated in the accompanying drawings in which Fig. 1 is a
front elevation, Fig. 2 a plan, Fig. 3 a vertical section and Fig. 4 an end elevation of
my improved boiler.
For this purpose I employ an annular lower section or water chamber a and a
longitudinal cylindrical upper section or water chamber b.
To the centre of the upper section or chamber and depending therefrom is fixed a
vertical cylindrical or a conical chamber or water space c.
This cylindrical or conical depending chamber or water space c is completely open
to the upper or longitudinal cylindrical section of chamber b and it is connected with
the lower or annular section or chamber a by means of either sinuous or straight
water tubes d fixed in both the sides and bottom of said depending section or
chamber c whilst the upper or longitudinal cylindrical section or chamber b is
connected at its ends with the lower or annular section or chamber a by means of
downcast water tubes e.
By this construction of steam boiler I also dispense with the necessity for enclosing
the fire box with fire bricks as has heretofore in some cases been necessary. The
whole boiler excepting the down cast tubes e is enclosed in a light sheet iron casing f:
the boiler is provided with a suitable baffle plate g and the casing terminates at its
upper end in the uptake h.
For larger steam boilers the upper or longitudinal cylindrical section or chamber b
would be provided with two or more depending chambers c and the boiler would be
provided with an equal number of fire boxes, the said depending chambers c being
connected as hereinbefore described by water tubes d e with a like number of lower
or annular chambers or sections a, the general effect in such case being similar to the
connection of two or more boilers of the character above described by means of the
upper sections or water chambers 6 being connected together or continued as a single
chamber.
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 :-
1. The improved water tube or sectional steam boiler, substantially as herein set
forth.
2. In water tube or sectional steam boilers the peculiar combination and
arrangement of parts, substantially as herein set forth.
Dated this 25th day of June 1897.
HARRIS & MILLS,
23 Southampton Buildings, London, W.C., Agents.