Check-Valve for Locomotive-Boilers and the Like. Page: 3 of 3
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4o,453
of which is formed to snugly engage the
dished portion f of the ring F and form a
tight joint therewith. The check valve H
is provided with a cylindrical portion h
b which snugly engages the circular aperture
e in the wall E in the elbow fitting A and
with a plurality of ribs h' which. extend
radially from the valve and the upper ends
of which serve by contacting with the under
10 side of the wall E to limit the upward move-
ment of the valve. The check valve H is
preferably provided with a cylindrical recess
42 therein, the lower end of which extends
in proximity to the lower end of said valve
15 which insures the valve being normally held
tightly to its seat by the pressure in the
boiler. The elbow fitting A is provided just
above the wall E with an opening A2 in
which is designed to be threaded or other-
20 wise suitably secured a draw-off cock of any
suitable construction so that after the cut-
off valve has been closed any water above the
check valve may be drawn off and access
had to said valve and its seat.
25 From the above described construction,
it will be apparent that both the check valve
and its seat may be at any time removed
without drawing off the water from the
boiler. It will also be obvious that by rea-
30 son of the fact that the cut off valve is po-
sitioned within the boiler, it will be impos-
sible for said valve to freeze.
I do not desire to limit myself to the pre-
cise form and construction shown in the ac-
35 companying drawings as it is obvious that
many minor changes may be made thereto
without departing from the spirit of the
invention as defined in the appended claim.
Having thus described the invention, what
40 is claimed is:-
In combination with a boiler, an elbowfitting positioned without the boiler, coiri
prising a horizontal branch projecting with-
in the boiler and a vertical branch depend-
ing from the outer end of said horizontal 45
branch, a cutoff valve adapted to close the
end of the horizontal branch projecting
within the boiler, said horizontal branch
being provided adjacent the end extending
within the boiler, with a wall extending 50
transversely thereof having a central open-
ing and a plurality of openings surround-
ing said central opening, and an operating
rod secured. to the cutoff valve, said rod hav-
ing a threaded engagement with the central 55
opening of said wall and extending without
the fitting, said vertical branch being pro-
vided adjacent the lower end thereof with
a wall extending transversely thereof having
a central opening and a plurality of open- 60
ings surrounding said central opening, a
pipe adapted to lie secured to the lower end
of said fitting, a valve seat interposed be-
tween the adjacent ends of said fitting and
pipe, and means for detachably clamping 65
the pipe to the fitting and holding the valve
seat in position, a. check valve within said
fitting and adapted to cooperate with said
valve seat, said valve being provided with
a portion snugly fitting the central opening 70
in the transverse wall adjacent the lower end
of the vertical arm of the fitting and a' drain
cock in the vertical branch above the check
valve.
In testimony whereof I have signed my 75
name to this specification in the presence of
two subscribing witnesses.
THEODORE ROBERT FONDREN.
Witnesses:
E. V. HARDWAY,
Wm. A. CATHEY.
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Fondren, Theodore Robert. Check-Valve for Locomotive-Boilers and the Like., patent, November 16, 1909; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth508381/m1/3/?q=%22%22~1: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.