Improvements in or connected with Tubular Boilers.
Year: 1891

page_text: Date of Application, 4th Feb., 1891
Complete Specification Left, 2nd Dec., 1891-Accepted, 2nd Jan., 1892
PROVISIONAL SPECIFICATION.
Improvements in or connected with Tubular Boilers.
I, JOHN RICHARDSON, of South Park in the City of Lincoln, Engineer, do
hereby declare the nature of this invention to be as follows:-
This invention has for object, the construction of the parts to constitute a boiler
in distinct sections each complete in itself and provided at the steam containing
portions with exposed or outside flanges, and in some other parts also but such
other parts may have lip or lap flanges, so that the several parts may be bolted
together with little trouble when erection is necessary. The invention provides
for ready packing, for ease of handling, facility for transport, and rapidity of
fixing.
For the purpose of my invention, in constructing a locomotive type of boiler, I
make the tube portion complete as a barrel with lip, lap, or with splayed out flanges
to which the fire box end and the smoke box end can be secured by bolts, the fire
box end being preferably elliptical in shape and provided with the usual water
chamber.
The steam chamber consisting of a barrel shaped vessel, is also made complete,
and the connections for attachment to the boiler have outside or splayed flanges
for connection by bolts to the outside or splayed flanges of the neck pieces of the
boiler which correspond.
The furnace mouth and bar carriers are also complete and provided with outside
or splayed flanges with bolt holes properly gauged to correspond with those of the
parts to which they have to be affixed.
The ash or draught portion at the fire end of the boiler is also complete and is
provided with outside flanges for ready attachment by holt to the adjacent portions.
Boilers thus prepared in complete and perfected sectional parts can when
erected, be set in brickwork, or upon saddle supports, the usual connection of pipes
being provided at the required places.
H. GARDNER,
Patent Agent, 166. Fleet Street, London,
Agent for the said John Richardson.
COMPLETE SPECIFICATION.
Improvements in or connected with Tubular Boilers.
I JOHN RICHARDSON of South Park, in the City of Lincoln, 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:―
This invention has for object the construction of the parts to constitute a boiler
in distinct sections, each complete in itself and provided at the steam containing
portions with exposed or outside flanges and in some other parts also, but such other
parts may have lip or lap flanges so that the several parts may be bolted together
with little trouble when erection is necessary. The invention provides for ready
packing, for ease of handling, facility for transport and rapidity of fixing.
For the purpose of my invention in constructing a locomotive type of boiler I
make the tube portion complete as a barrel with lip, lap or with splayed out flanges
to which the fire box end and the smoke box end can be secured by bolts, the fire
ID 11

page_text: box end being preferably elliptical in shape and provided with the usual water
chamber.
The steam chamber consisting of a barrel shaped vessel is also made complete
and the connections for attachment to the boiler have outside or splayed flanges
for connection by bolts to the outside or splayed flanges of the neck pieces of the
boiler which correspond..
The furnace mouth and 'bar carriers are also complete and provided with outside
or splayed flanges with bolt holes properly gauged to correspond with those of the
parts to which they have to be affixed.
The ash or draught portion at the fire end of the boiler is also complete and is
provided with outside flanges for ready attachment by bolts to the adjacent portions.
Boilers thus prepared in complete and perfected sectional parts can when erected
be set in brickwork or upon saddle supports the usual connection of pipes being
provided at the required places.
The annexed drawings show several detail arrangement of boilers to which my
invention is specially applicable.
Figure 1 is a longitudinal section of a land or portable boiler and Figure 2 a
transverse section through the line a, a of Figure 1.
A is the furnace portion with outer shell B forming a water chamber. The
plates from which this furnace part is made are secured together in any convenient
manner and constitute a section complete in itself. The barrel C with its tubes
and smoke box D as a separate and complete section-the steam dome E being also
an independent section, but capable of being secured in position on the fire box
section and the barrel section by the flanges at F, G. The barrel is secured in a
similar manner at the flanges H, I.
Figure 3 is a longitudinal section of a tubular boiler of the same type as that
shown at Figure 1 except that the main flue is carried along under the barrel and
the tubes proper form the return flue and terminate in a gas expansion chamber J.
Figures 4 and 5, longitudinal section and half front section of another type of land
or it may be a marine boiler composed of independently prepared but complete
sections capable of being bolted together when and where desired.
Figures 6 to 9 represent a similar type of boiler to that last referred to, the
same letters of reference indicating corresponding parts in all the figures.
The side water chambers are connected together by the steel casting K which
through the upper casting I communicates with what we may call the barrel or
body of the boiler.
Any steam which is generated or circulation of water which is caused can escape
through the branch pipes B', B¹, and the neck M into the steam or separating
chamber E.
This like the preceding one admits of being put together entirely with the aid of
spanners and dispensing almost entirely with the use of brickwork setting, the only
brickwork required being the bridge N and the lining P, at the back of the boiler.
According to Figure 10 the sides of the firebox of this boiler are shown built up
of a series of plates, but instead of being in one piece they are made in a number
of pieces in the form of rectangular slabs cach connected to the other with a bent
tube so as to allow a continuous circulation.
The interior of the boiler consists of a number of water tubes instead of a shell
enclosing tubes. These latter may be of any well known arrangement of tubular
boiler.
This construction of the sides and the whole casing of sectional boiler with
rectangular slabs joined together in the manner shown form a complete setting for
the boiler and entirely dispenses with brickwork and masonry.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare, that what I
claim is
1. Constructing boilers of the types shown in the annexed drawings in complete

page_text: sections with exposed flanges capable of being bolted together at the place of fixing
or erection as set forth.
2. Constructing boilers in complete sections and having the sides of the whole
casing of sectional boiler with rectangular slabs joined together in the manner
shown, forming a complete setting for the boiler and entirely dispensing with
brickwork and masonry as described.
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said J. Richardson.
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said J. Richardson.