A Combination Furnace Fire Bar and Feed Water Heater for Steam Boilers.
Year: 1899

page_text: PROVISIONAIS DI MUITICATION.
A Combination Furnace Fire Bar and Feed Water Heater for
Steam Boilers.
I, LEWIS WILLIAMS, of Portlyglo House, Upper Boat, Pontypridd, in the County
of Glamorganshire, Mining Engineer, do hereby declare the nature of this inven-
tion to be as follows:
My invention relates to a hollow fire grate bar for boilers, providing for a con-
stant current of water through the bars by being forced or drawn through and the
water being utilized for feeding boiler or boilers.
The essential features of the invention are
(1) To prevent the destruction of fire bars by being burnt, and
(2). To ensure the feed water for boiler or boilers fresh and clean being heated
before it gets into the boiler or boilers and thus saving greatly in fuel.
The bars can be made of steel or iron of great strength joined together at both
ends and can be made of different sizes to suit all requirements.
Dated this 24th day of January 1899.
A Combination Furnace Fire Bar and Feed Water Heater for
Steam Boilers.
I, LEWIS WILLIAMS, of Porthyglo House, Upper Boat, Pontypridd, in the County
of Glamorganshire, Mining Engineer, do hereby declare the nature of this inven-
tion and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement:―
My invention relates to a hollow fire-bar for the furnaces of steam boilers, and
is designed with a view that a battery of such bars may serve the combined pur-
pose of a grating for the bottom of the furnace in the usual way, and a conduit
for the feed water of the boiler or boilers, its objects being firstly-to prevent
such bars from becoming burnt while in use and so prolong the life of same, and
secondly that the feed water by being first passed therethrough may become
heated, by otherwise waste heat, before entering the boiler or boilers.
In order that the manner in which I prefer to construct the said fire-bar, and the
way in which I purpose employing the same may be fully understood, I have here-
unio appended a sheet of drawings, of which-
Fig. 1 is an enlarged cross section of a pair of such fire bars as I prefer to con-
struct them, and substantially as if taken upon the line X X of Fig. 2, while Fig. 2

page_text: is a plan view of a battery of such bars as they would appear when arranged to
form the grate of a boiler furnace, and in which I have chosen to assume that ten
such bars are employed.
In carrying my invention into effect I cast or otherwise produce from steel or
iron, or any desired combination of both, a hollow fire-bar such as A, of any desired
size, and of any desired or suitable formation in cross section, but preferably that shewn
by Fig. 1, the upper surface or crown of which B extends beyond the body to
form on each side a flange C, these being to form a space between the body of one
bar and the next to facilitate the radiation of heat, and in each of the said flanges
are one or more cut away portions to provide spaces D (Fig. 2) for the passage of
the cinders in the usual way.
Each end of each bar is provided with an opening or boss E, so that a battery
of such bars may be joined together in series by semicircular tubular connections
such as F, the initial end of the first, and the final end of the last bars being pro-
vided with curved tubular extensions G and G₁ respectively, the former for con-
nection with the water supply, and the latter with a conduit leading to the injector
or injectors for serving the boiler or boilers, the flow of water thus passing, by
force or otherwise, through the whole battery of bars, in the direction of the arrows
in Fig. 1, and receiving heat from the heated bars would he raised to almost boil-
ing point before entering the boiler or boilers, hence the object of my invention.
a suitable safety valve or valves being, if necessary, provided in the conduit cr
conduits G or other suitable part of the system.
At either or both ends of each of the said bars may be provided a steam tight
plugged or covered hole or holes H, to facilitate the removal of any sediment or
incrustation that may accumulate or form in the bars. thus providing, that the
heated water may enter the boiler or boilers in a perfectly clean condition.
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:-
1st. The hollow fire-bars for the furnaces of steam boilers substantially as and
for the purposes herein described and shewn.
2nd. The construction, use and application of any number of hollow fire-bars
such as A, for the furnaces of steam boilers, the said bars being joined up in series
by tubular connections such as F, and each bar provided with a steam tight plugged
or covered hole or holes such as H. the whole series of bars being connected with
a water supply at G, and at G¹ with a conduit leading to the boiler or boilers, sub-
stantially as and for the purposes herein set forth and shewn by the appended
drawings.
GEO. THOS. HYDE,
1, Broad Street, Buildings, Liverpool Street, London, E.C..
Agent for the Applicant.