An Improved Boiler.
Year: 1892

page_text: Date of Application, 7th June, 1892
Complete Specification Left, 5th Jan., 1893—Accepted, 11th Feb., 1893
PROVISIONAL SPECIFICATION.
An Improved Boiler.
I, CHARLES JAMES WATTS, Engineer, of 13 Saumarez Street, Guernsey,
Channel Islands, do hereby declare the nature of this invention to be as follows:
This invention refers to horizontal tubular hot. water boilers of cast iron and
consists of a fire-box enclosed by horizontal tubes with hollow waterway castings at
each end.
Above the fire-box I place any number of sections composed of layers of similar
tubes, each section consisting of a single range of pipes connected at the ends by
waterway castings.
Each section is connected to the section immediately above and below it and also
to the waterway end castings of fire-box by means of recessed spigot and socket
joints made watertight by means of india-rubber rings or flanges.
The end castings of the sections are slightly shouldered down or recessed so as
to afford access to the space between the layers of tubes, for cleaning purposes,
which space may form a flue for conveyance of the heated gases from the burning
fuel to the chimney.
Flue plates are inserted into the flues so formed and these are placed on alternate
ends of the sections so as to compel the heated gases to travel horizontally between
each layer of pipes before escaping from one section to another and thence to the
chimney. Lugs are cast on the end castings so as to enable the different sections to
be bolted together and to the fire-box, and by this means provision is made for
the ready removal of any section for replacement or repairs.
Similar lugs and bolts connect the end castings of each section to the layers of
pipes which when so connected form the sections before mentioned.
Dated this 7th day. a. 1000
S. S. BROMHEAD,
97, Newgate Street, London, E.C., Agent for Applicant.
COMPLETE
SPECIFICATION.
An Improved Boiler.
I, CHARLES JAMES WATTS of 13 Saumarez Street, Guernsey, 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 relates to horizontal tubular hot water circulating boilers of cast
iron which consist of a fire-box only, enclosed by horizontal tubes with hollow
waterway castings at each end.
Above the usual fire-box 1 place any desired number of additional layers of
pipes, each layer composed of rows of similar tubes placed horizontally and
forming a single range of pipes connected at their ends by hollow waterway
castings.
I will now describe the invention with reference to the accompanying drawings
in which
Fig. 1 shews a front elevation, and Fig. 2 a side elevation, of a boiler fitted with
my improvements.
Fig. 3 shows a plan view of one of the layers or extra ranges of pipes above
described.
a, is the tubular fire-box or combustion chamber, forming the boiler as at
[Pic d]

page_text: present in use. b, is one of the extra layers or ranges of additional pipes, which I
add to the boiler. c, shows in dotted lines, the position of a second layer, if such
were placed above b. Others can be added as desired. d, d, are the pipes, and
e, e the hollow end castings with recessed socket joints, which compose each layer.
ff, are sockets on the upper side of the castings e, e, which receive spigots formed
on the under side of these castings. In the layer which forms the top of my
improved boiler the sockets f, f, can be closed by blank spigots or solid caps fitted
thereto, or special end castings may be cast without the sockets on top. g¹, are
lugs on the outside pipes to receive bolts which pass through holes or lugs on
the castings e, e, and which hold the layers firmly together. h, h, are lugs cast on
the ends of the castings e, e, to receive the bolts i, i, which fasten the layers to the
boiler beneath.
و)
It will be seen that each separate layer of pipes is connected to the layer
immediately above and below it, or similarly to the waterway end castings of the
fire-box, by water joints; and is also fastened thereto by bolts passing through
lugs.
The water-joint between each layer, and between the lower layer and the fire-
box is made watertight by a rubber washer, or in any other usual way.
The effect of the foregoing arrangement is to greatly increase the heating
surface of the boiler, and also to utilise more efficiently the heat of the fire.
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 :-
In the special form of horizontal tubular hot water circulating boiler, which is
confined to the length of the fire-box of the same, the extension of the said boiler
upwards, by means of layers composed of horizontal ranges of single pipes with
hollow end castings connecting the ends of the said pipes, so constructed that any
number of such layers may be placed one above the other, over the fire-box before
mentioned, as herein described and set forth.
Dated this 5th day of January 1893.
S. S. BROMHEAD,
97, Newgate Street, London, E.C., Patent Agent.