Year: 1886

page_text: We FRANCIS CHARLES SIMPSON, JOSEPH BASIL DENISON & EDWARD FANSHAWE
DENISON trading as Simpson & Denisons Engineers, Dartmouth, Devonshire, do
hereby declare the nature of our said invention to be as follows:-
The object of our invention is a novel construction of internal portion or body
of vertical boiler said invention being based upon a special construction of boiler
described in specification of Letters Patent No. 2912 of 1881 granted to George
Kingdon of Kingswear, Devon, Engineer.
According to the construction of Mr. Kingdon's Boiler the internal vertical tubes
are carried up close to the dome where they are connected to a top plate above the
water level and within the upper part of the boiler which is of much larger
diameter than the lower part so that a large water surface and large steam room
are gained from which comparatively dry steam can be taken and priming
obviated.
Now according to our invention we make the internal portion of the top plate F
of ring shape and carry down from same at any desired angle a screen or partition
to which the upper tube plate is attached so as to be below the water level or
about level therewith thus the tubes E are much shorter than those shown in the
drawing annexed to Mr. Kingdons specification and a more roomy steam space
without interfering with the water space is obtained and a gas expansion chamber
is also formed between the upper tube plate and the top plate F, in which chamber
a high temperature is obtained for drying the steam in the steam chamber pro-
ducing increased economy, efficiency and other advantages.
The dome may be dispensed with in our invention and the uptake be attached
directly to the top plate F.

page_text: We FRANCIS CHARLES SIMPSON, JOSEPH BASIL DENISON, and EDWARD FANSHAWE
DENISON trading as Simpson and Denisons, Engineers, Dartmouth, Devonshire, 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 our invention, is a novel construction of internal portion or body
of vertical boiler, said invention being based upon a special construction of boiler
described in Specification of Letters Patent No. 2912 of 1881 granted to George
Kingdon of Kingswear, Devon, Engineer.
According to the construction of Mr. Kingdon's Boiler, the internal vertical tubes
are carried up close to the dome. where they are connected to a top plate above the
water level and within the upper part of the boiler, which is of much larger
diameter than the lower part, so that a large water surface and large steam room
are gained from which comparatively dry steam can be taken and priming
obviated.
Now according to our invention, which we show in the annexed drawings, in
which Figure 1 is a half sectional elevation and Figure a part sectional plan, we
make the internal portion of the top plate F of ring shape and carry down from
same at any desired angle, a screen or partition J, to which the upper tube plate K.
is attached so as to be below the water level, or about level therewith, the tubes E
being much shorter than those shown in the drawing annexed to Mr. Kingdon's
Specification and a more roomy steam space without interfering with the water
space is obtained and a gas expansion chainber L is also formed between the upper
tube plate K and the top plate F serving as a gas expansion chamber in which
chamber L a high temperature is obtained for drying the steam in the steam
chamber producing increased economy, efficiency, and other advantages.
.
The dome may be dispensed with in our invention and the uptake be attached
directly to the top plate F.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
In the steam boiler of the construction shown in the annexed drawings, the
angled screen or partition J, short tubes E, ring shaped top plate F, as and for the
purposes set forth.