Improvements in Vertical Steam Boilers.
Year: 1888

page_text: Date of Application, 10th Mar., 1888
Complete Left, 5th May, 1888
Complete Accepted, 8th June, 1888
PROVISIONAL SPECIFICATION.
Improvements in Vertical Steam Boilers.
1 ROBERT NORTON of 45 Myrtle Road Ipswich in the County of Suffolk, boiler
maker, do hereby declare the nature of this invention to be as follows:-
In vertical steam boilers I make the lower part of the firebox circular and con-
centric with the shell as usual, but the upper part of the firebox has a flattened portion
to form a tube plate in which are fixed a number of tubes which pass through a tube
plate fixed to the shell of the boiler. This tube plato in tho shell is oxtended upwards
to take a second set of tubes, which pass across the boiler above the top of the firebox,
and are fixed in another tubo plate attached to the shell of the boiler, opposite and
parallel to the first. A combustion chamber suitably lined with firebrick is attached
to the outside of the boiler, and serves to connect the ends of the tubes which como
from the firebox below with those which pass across the boiler above. A smoke box
and chimney is attached also to the outside of the boiler to receive the smoke from
the set of tubes which pass across the boiler.

page_text: Improvements in Vertical Steam Boilers.
1, ROBERT NORTON of 45 Myrtle Road, Ipswich in the County of Suffolk, Boiler
maker 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 has reference to the construction of vertical boilers, and has for its
object the more rapid generation of steam combined with economy in the consumption
of fuel.
In order that my invention may be the better understood I have appended the
accompanying sheet of drawings in which Figure 1 is a side sectional elevation of a
vertical boiler according to my invention, Figure 2 is a back sectional elevation of
the same. Figure 3 is a cross section of the boiler drawn on line A. B. Figure 1 and
Figure 4 is a cross section drawn on line CD Figure 1.
In the construction of vertical boilers according to my invention I form the lower
part of the firebox A circular and concentric with the shell as usual, the upper part B
however of the firebox is formed with a flattened portion a to serve as a tube plate, in
which are fixed a set of tubes e passing into and attached to a tube plate secured to
the shell C of the boiler, through which the products of combustion pass before their
entry into the boiler tubes proper. Said tube plate is extended upwards to allow
of the insertion therein of a second set of tubes d, as shown at 6, which, passing across
and spanning the boiler above the firebox aro secured to a tube plato e fixed to the
front of the shell C of the boiler, opposite to, and parallel with the aforesaid tubo
plate . Attached to the back of the boiler C is a combustion chamber D, suitably
lined with fire brick f, and serves to connect the ends of the tubes c with the ends of
the tubes d, which latter, as above described pass across the boiler above the firebox.
In placing the tubes c and d in position, I prefer to arrange them at a slight incline,
so that the ends of both sets of tubes shall be closer together at the back than at the
front, the object of which is to allow of a freer passage of the fire and smoke through
the tubes than is attainable through pipes arranged strictly horizontal.
A suitable smoke box E and funnel Fare provided on the exterior of the boiler to
receive and carry off the smoke from the tubes d.
Having now particularly described and ascertained the nature of my said; inven-
tion and in what manner the same is to be performed, I wish it to be understood
that I do not restrict myself to any particular size or length of boilor tubes c but what
I claim and desire to secure by letters Patent is :-
.
C
First. In vertical steam boilers the employment of a firebox having the upper

page_text: part thereof flattened or contracted to serve as a tube plate for the reception of a
number of smoke tubes c interposed between the firebox and combustion chamber and
supplementary to the main smoke tubes & substantially as herein described and shown
in the accompanying drawings.
Second. In vertical steam boilers the arrangement generally of the firebox,
smoke tubes, combustion chamber and smoke box substantially as herein set forth and
shown.