Valve for Water-Tanks Page: 3 of 5
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UNITED STATESPATENT OFFICE.
HUGH L. BRALY, OF SHAMROCK, TEXAS.
VALVE FOR WATER-TANKS.Specification of Letters patent. Patented Sept. 17, 1912.
Application filed May 12, 1910. Serial No. 560,997.To all whom it may concern:
Be it known that I, Huou L. BRALY, a
citizen of the United States, residing at
Shamrock, in the county of Wheeler and
5 State of Texas, have invented certain new
and useful Improvements in Valves for
Water-Tanks, of which the following is a
specification.
My invention relates to discharge valves
10 for tanks containing water or other liquids,
and the primary object of my invention is
to provide means whereby air may be in-
troduced into the water below the top there-
of so that the water may be drawn from the
15 tank even when the water in the tank is en-
tirely frozen over. Where ice has formed
upon the surface of the water so as to pre-
vent the introduction of air it is sometimes
very difficult to draw-off the water from
20 the lower portion of the tank, and my inven-
tion is designed to obviate this difficulty.
K Furthermore, my invention contemplates
a device by which air may be introduced
into the interior of the tank, so that the
25 pressure of air as it escapes into the tank
will act to force the water out through the
valve thus increasing the flow of water, es-
pecially if the water is to be conveyed
through a considerable distance by means
30 of pipes.
While I have shown my invention as ap-
plied to the side of a tank, it is to be un-
derstood that it will operate in precisely
the same manner if applied to the bottom
35 of a tank.
In its essence my invention comprises a
draw-off pipe which is carried in the wall
of the tank and which is provided with
a water outlet opening and an air inlet open-
40 ing at its outer end. The inner extremity of
the pipe is closed by a valve which valve is
attached by means of a second pipe extend-
ing through the interior of the draw-off pipe
to a rod projecting out of the exterior end of
45 the draw-off pipe. This second pipe is pro-
vided with perforations and is operated by
said rod. By this means air entering the
main pipe will be carried back into the tank
and water will be discharged from the tank
50 in to the draw-off pipe and through the dis-
charge opening thereof.
For full understanding of the invention
reference is to be had to the following de-
scription and accompanying drawing, in
55 which:-
Figure 1 is a fragmentary sectional viewof a tank showing my improved valve ap-
plied thereto. Fig. 2 is longitudinal sec-
tion of the valve. Fig. 3 is a transverse sec-
tion on the line 3-3 of Fig. 1. Fig. 4 is a 60
sectional view of a tank showing a modified
form of my valve applied thereto, and Fig.
5 is a detail sectional view of the forward
end of the compressed air conducting tube
and valve. 65
Corresponding and like parts are referred
to in the following description and indi-
cated in all the views of the accompanying
drawings by the same reference characters.
Referring to Figs. 1 to 3 which show one 70
form of my invention A designates a tank
of any usual or approved form, and 2 the
discharge pipe which is inserted through
the wall of the tank. This pipe 2 at its
cuter extremity is screw-threaded for en- 75
gagement with a three-way coupling 3 of
any usual form. The outer extremity of
this coupling is screw-threaded for engage-
ment with a bushing 4 having a central per-
foration, this bushing preferably having a 80
central recess 5 in its outer face. The inner
end of the pipe 2 is open. Extending through
the center of the pipe 2 and coupling 3 is
the longitudinally extending tubular rod 6
which at one end is reduced to form a shank 85
7 which projects out through a gland 8
in the cap or bushing 4, and which is screw
threaded at its extremity to engage with a
lock-nut 9. The other extremity of the pipe
6 is screw threaded into a hollow coupling 90
10 which supports a washer 11 forming a
valve. This valve washer 11 bears against
a shoulder 12 formed on the extremity of
the coupling 10. A pipe 13 of the same bore
as the pipe 6 is screw threaded into the end 95
of the coupling 12 and is closed at its ex-
tremity by a cap 14. The T coupling or
union 3 is formed with two openings, one
the water outlet opening 15 and the other
the air indet opening 16, these openings be- 100
ing disposed in angular relation to each
other. The pipe 6 is perforated at its outer
end as at 6a, and the coupling 10 is also per-
forated as at 10a. Thus the interior of the
pipe 6 is in communication with the space 105
between the pipe 6 and the outer pipe 2
and the coupling 3. Air which passes in
through the air inlet opening 16 is carried
rearward and discharged into the tank at the
rear end of the discharge pipe 2 and thus, 110
when the valve is open, discharged at the
rear of the water which passes through the1,038,836.
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Braly, Hugh L. Valve for Water-Tanks, patent, September 17, 1912; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth512084/m1/3/?rotate=270: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.