Water-Closet Flush. Page: 4 of 6
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UNITED
STATES
PATENT OFFICE
JONATHAN BOWMAN, OF SAN ANTONIO, TEXAS.
WATER-CLOSET FLUSH.
SPECIFICATION forming part of Letters Patent No. 660,044, dated October 16, 1900.
Application filed October 7, 1899. Serial No, 732,943. (No model.)To all w ho7)b it may concern: [
Be it known that I, JONATHAN BOWMAN, a
citizen of the United States, residing at San
Antonio, in the county of Bexar and State of
5 Texas, have invented a new and useful Wa-
ter-Closet Flush, of which the following is a
specification.
My present invention relates to a novel si-
phon flushing apparatus for water-closets.
o The object of my invention in its broadest
aspect is to provide an apparatus which may
be operated without waste, in which the quan-
tity of water to be discharged at each flushing
can be readily regulated, and which will effec-
r5 tually eliminate the objectionable leakage in-
cident to the employment of movable valves
in the discharge leg or branch of the siphon.
Subordinate to this general object are others,
which will more fully hereinafter appear as
20 the necessity for their accomplishment is de-
veloped in the succeeding description.
Referring to the drawings, Figure 1 is a
sectional view of a flush-tank provided with
my improved apparatus, the position assumed
25 by the parts during the operation of flushing
being shown in dotted lines. Fig. 2 is a sec-
tional view through the discharge branch of
the siphon, showing the regulator. Fig. 3 is
a plan view of the piston. Fig. 4 is a view
30 similar to Fig. 1, showing a modified form of
pump. Fig. 5 is a view similar to Figs. 1 and
4, but illustrating another form of combined
siphon and pump. Fig. 6 is a sectional view
showing still another and possibly the pre-
35 erred form of siphonic pump.
Referring to the numerals of reference on
the accompanying drawings, in which like nu-
merals refer to corresponding parts through-
out the several views, 1 indicates a flushing-
40 tank provided with an ordinary form of sup-
ply mechanism 2.
3 indicates a flushing-siphon comprising a
comparatively-long discharge branch 4, ex-
tending upwardly through the bottom of the
45 tank and opening at its upper end into a
cylinder 5, constituting the short or supply
branch of the siphon, having a closed upper
end provided with a cover or cap 6 and open
at its lower end, which extends nearly to the
50 bottom of the tank. 7 indicates a piston mov-
able within the cylinder 5 and provided with
peripheral packing 8, one or more inwardly-opening or clack valves 9, and coaxial piston-
rod 10, guided by the frame 11 and passing
through the stuffing-box 12 above the cylin- 55
der, where it finally terminates in a bifur-
cated end 13, in which is revolubly mounted
a roller,14.
15 indicates a flushing-lever fulcruined, as
at 16, upon a standard 17, carried by the tank 6o
and passing between the bifurcation 13 of the
piston-rod and under the roller 14. Thus
when the flushing-lever is actuated by a pull
upon the chain 18 the piston-rod will be re-
ciprocated vertically, causing the ascent of 65
the piston within the cylinder, the parts be-
ing thereafter restored to their normal posi-
tions by a counterweight 19, the hook 20 of
which is designed to engage one of a series of
apertures 21 through the lever 15 beyond the 70
roller 14. It is obvious that when the piston
-7 is elevated sufficiently within the cylinder
to discharge enough water into the long arm of
the siphon to create siphonic action the water
in the tank will continue to flow through the 75
branch 4 and into the receptacle to be flushed
until the level of water within the tank falls
below the lower end of the cylinder. It is
unnecessary, however, in most instances to
discharge the entire contents of the tank at 8o
each flushing, and I have therefore devised a
simple regulator by means of which the quan-
tity of water discharged at each operation
may be determined with accuracy, and which,
unlike the ordinary float-controlled devices, 85
will not continue the discharge when the tank
has .been refilled even though the pull upon
the chain 18 be continued. In other words, I
regulate the flush and necessitate a separate
actuation of the flushing-lever for each flush- 90
ing operation.
I have illustrated several forms of regu-
lators, the essential feature of all of which is
the breaking of the siphonic action by ad-
mitting air into the siphon at predetermined 95
water -levels. The preferred form of this
regulator, however, comprises a longitudinal
slot 22 in the side of the branch 4 of the siphon
and extending from a point adjacent to the
bottom of the tank, preferably to high-water 1oo
mark. The branch pipe 4 is provided coex-
tensive with the slot 22 with a longitudinal
concavity 23, closed at the bottom, as indi-
cated at 24, and having an open top 25, which
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Bowman, Jonathan. Water-Closet Flush., patent, October 16, 1900; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth509407/m1/4/: accessed June 27, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.