STEAM-BOILER FURNACES
Year: 1882

page_text: COMPLETE SPECIFICATION filed by George Herbert Watson at the Office of
the Commissioners of Patents on the 16th January 1882.
GEORGE HERBERT WATSON, of St. Louis in the County of St. Louis and State
of Missouri United States of America. "STEAM-BOILER FURNACES."
Figure 1 is a front view of a boiler furnace embodying my Invention. Fig 2. is
a longitudinal vertical section of the same. Fig. is a vertical cross-section;
and Fig. 4 is a plan view showing a chain of boilers illustrating my Invention and
modifications thereof.
Corresponding parts in the several Figures are denoted by like letters of
reference.
This Invention relates to steam boiler furnaces and it consists in certain improve-
ments in the construction of the same, embodying a steam generator and a feed
water heater, as will be hereinafter fully described and particularly pointed out in
the claim.
In the Drawings hereto annexed, A represents the ash-pit, B the back-wall, and
CC the side walls of an ordinary furnace. The feed-water pipe, D, which runs
horizontally in front of the boiler furnace, has two branches, E E¹, extending
inward into the ash pit, and from thence upward from whence they are coiled in
horizontal, divergent, parallel courses, G G¹, to form the grate of the furnace; the
said pipes are then coiled upward in two vertical parallel or zig-zag courses H H¹
adjoining the sides of the furnace walls passing out through the front then upward
as at II and finally back into the boiler, which is in the Drawings denoted by
the letter J.
From the branches E E¹ pipes K K¹ extend upward and into the boiler, as
shown.
The feed-water pipe is provided at one end with a check-valve, L', and at the
other end with a hand valve M. The branch pipes E E' are provided with hand
valves N N¹ and O O¹ located respectively in front and in rear of the pipes K K'.
The latter are provided with downward opening check-valves, P P¹, above which
stop cocks, QQ are located and the outer ends I I¹, of the main feed pipes have
hand valves or cocks, R.R¹.
When in operation the fire is started the water contained in the grate bars G G¹
and side bars H His heated, and steam is generated which passes through the
valves R R¹, which are usually open into the boiler. A continuous course of cir-
culation is thus established through the bars or tubes G G¹ and H H¹, valves R R¹,
the boiler, the valves Q Q¹ and P P' down through tubes K K³, and to the
;

page_text: branches E E, from whence the valves N and N¹ being closed, the hot water and
steam passes through valves O and O', back into the grate bars G G¹. This cir-
culation is permitted to continue as long as there is fire in the furnace. When it
is desired to replenish the water in the boiler, it is forced through the check-valve
into pipe D, from whence the feed water passes through pipes E EGG'HH' I and I'
into the boiler. The valve M at the end of the feed water pipe is normally in a
closed position, thus forcing the feed water to take the course indicated.
If, by any accident, any of the pipes G G¹ H H' or I I' should burn out, burst,
or become otherwise injured, it is only necessary to close the valves O O', through
which feed water passes into said pipes, and the valves R.R¹, through which they
discharge into the boiler, reverse the check-valves P P¹, so that they shall open
upward, and open the cocks or valves Q Q. The feed water will then pass through
the pipes K K direct into the boiler.
In Fig. 4 of the Drawings I have shown several modifications of my Invention,
which consists in a somewhat different arrangement of the feed pipes. These may
either, as at S S', be coiled at the sides of the furnace, only, or at T T T2 around
the sides and back as at U U¹ at the sides, or if preferred at the bottom only. The
In every
various modifications may also be combined in any suitable manner.
case the principle of operation is substantially the same and the difference is solely
in the construction.
From the foregoing description, taken in connection with the Drawings hereto
annexed, the operation and advantages of my Invention will be readily understood.
When it shall be desirable to blow out scales or other impurities from a single
boiler, or from one or more of a chain of boilers having my improvement, open the
hand valve M and close the valves N or N¹ and Q or Q¹, thus blowing out the
scales and obstructions from either or both sections of pipes.
Having thus described my Invention, I claim and desire to secure by Letters
Patent:
1st. The combination of a boiler furnace, a feed-water pipe running horizontally
in front of said furnace, and branch pipes extending from said feed-water pipe to
form a water-grate and water sides for said furnace; substantially as described for
the purpose set forth.
2nd. In a boiler furnace, a double series of water tubes diverging from the feed-
water tube to form water grate bars and coiled adjoining the side walls of the
furnace, and connected with the boiler; substantially as set forth.
3rd. The combination of the boiler furnace, the feed-water pipe, tubes branching
from said pipe, coiled in the furnace and connected with the boiler tubes diverging,
from said branches and connected with the boiler, and valves N' N' O O¹ P P¹ QQ¹
and R R', all arranged and operating substantially as described, for the purpose
set forth.
4th. The combination of one or more boiler furnaces, the feed water pipe having
hand valve and check-valve as described, and the system of generating and feeding
pipes and their valves, arranged substantially as herein described, for the purpose
set forth.
In witness whereof I, the said George Herbert Watson have hereunto set
my hand and seal this Twenty-sixth day of December in the year of our
Lond One thousand eight hundred and eighty-one