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Патент USA US2121241

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Junezl, 1938.
`
MEACH
FLUSHING MECHANISM OF TANKS FOR WATER CLQSETS
Filed June 20, 1936
5.9
m
2,121,241
Patented June u21, 1938
2,121,241
uNiTED STATES
ru'r
orifice N
2,121,241
'FLUSHING MECHANISM OF TANKS FOR
WATER CLOSETS I
Ernest A. Bach, St. Louis, Mo., assigner of one
half to George Wood, St. Louis, Mo.
Application June 20, 1936, Serial No. 86,330
5 Claims.
This invention relates to the flushing mecha
nisms for the tanks of water closets and the like,
wherein the primary purpose of the invention is
"
to provide the mechanism and/or the tank or
5" chest with cooperable means for draining the
tank of its content when the water pressure to
the mechanisms is cut off in order to» eliminate
the hazard of freezing and consequent destruc
"tion of the tank.
‘
l0 ` Another purpose or object of the invention is
to provide the water pressure stand-pipe of the
flushing mechanism with a drain duct -which is
automatically closed while water pressure isr
` maintained in the stand-pipe and which is auto
l‘5 ‘ matically opened for draining communication
with the tank when the water `pressure `to the
stand-pipe is cut off.
»
Other and further. objects will appear in the
specification and be specifically pointed out in
20' the appended claims, refer-ence being had to the
accompanying drawing, exemplifying the inven
tion, and in which:
Figure l is a fragmentary vertical section tak
en through a portion of a flushing tank and cer
25" tain of the mechanism to which the invention is
applicable and is shown.
‘
Figure 2 is an enlarged fragmentary horizontal
section taken approximately on the line 2-2 of `
Fig. l.
30TY Referring by numerals to the accompanying
drawing, 3 designates a tank or chest for con
taining a body of water to be used for flushing
purposes through the discharge outlet 4 which
may lead to a water closet or other device to be
35 flushed when the valve 5 is lifted from its seat
6 by any well known operating means (not
shown).
The discharge outlet 4 is connected to the bush
ing 'I by a gland nut 8, said bushing being se
40 cured in a seal tight manner in an opening 9
formed in the bottom I0 of the tank 3, the upper
end of the bushing 'I having the seat 6 formed
thereon for cooperation with the valve 5.
Water is obtained in the tank 3 through the
45 stand-pipe I I which is vertically mounted in the
tank and has its lower threaded end I2 extended
through an opening I3 formed in the bottom I0
of the tank to which a water supply pipe I4 is
connected by the gland nut I5.
50
The stand-pipe I I is provided with a vertically
disposed passageway I6 and a plunger chamber
I1 in which a plunger I8 is mounted, said plunger
at its lower end carrying a seating disc I9 for
closing engagement with an annular seat 20
55 which is formed in the stand-pipe at the upper
(Cl. 137-21) ‘
end of the passageway I6.
The plunger I8 is
alsoprovided with a vertically disposed aperture
2I, and for cooperation with the top and bottom
and
surfaces
23 respectively,
of said aperture,
of anare
actuating
cam surfaces
lever 24,
22 5"
said lever `at one end being swingably mounted
on `the pivot 25 which is mounted in opposing
ears 26 which extend from and form a part of
the stand-pipe II.
,
Extending from the stand-pipe I.I is a spout 10"
21 having a »downwardly extending end 28, the
passageway of said spout being in communication
with the plunger chamber I'I, and secured to the
downwardly extending end 28 of said spout is a
. ,
discharge pipe 29 for the discharge of water from 15"
the stand-pipe into the tank 3.
‘ Formed integral with the spout 21 is a sup
port 30 and pivoted yat 3| to said support is a
lever 32 having one end pivotally connected at
33 to a link or pair of links 34, the opposite end 20’
of said link being pivoted at 35 to the lever 24
ofthe plunger I8. The opposite end of the lever
321s adjustably secured by the thumb bolt 36
to the connecting end 3'! of a float rod 38, said
`
float rod at its opposite end having a float ball 25
39 secured thereto.
The afore detailed description` may be of any
well known structure and/or mechanism applica
ble to flushing tanks and the like for providing
water entrainment to the tank for flushing pur- 30
póses, and wherein after each discharge of the
body of water from the tank, an automatic re
filling of water in the tank occurs. However, in
flushing devices of this character, it quite fre
quently happens that by reason of buildings and
5
the like being vacant and unheated during the
winter months, the standing water in the flush
ing tanks upon freezing, causes breakage of the
tanks particularly on account of the tanks being
made of earthenware or porcelain material. 40
While it is customary to shut oli" the source of
water supply at the meter wherein the water will
drain from the piping of the building, the water
content however, of the flush tanks still remains
in the tank because of being entrapped therein
by reason of the valve 5 closing the only source
of discharge of the water from the tank.
Applicant’s invention therefore is for the pur
pose of providing a draining feature in coopera
tion with the stand-pipe of ñushing apparatuses 50
so that when the water supply is cut off, an auto
matic draining of the tank will be a consequence
or result. In this connection, the stand-pipe II
at a point adjacent and above the bottom I0 of
the tank 3 is provided with a right-angular 55
2
2,121,241
threaded extension 40 to which a housing 4I con
means for entraining water pressure to said stand
taining a check valve 42 is threadingly secured,
the housing 4l having an opening 43 formed in its
>end wall 44 and the opening on its inner end hav
ing a seat 45 for cooperation with the check valve
or ball check 42, and the housing 4| also having
a bushing 46 therein which is adjustably secured
pipe, controllable discharge means cooperable
with said stand-pipe for discharging water into
said tank, and a valve controlled discharge pas
sageway at the lower end of the stand-pipe coop
erable to drain water from the tank and into the
stand-pipe when the water pressure to said stand
pipe is shut off.
2. A iiushing tank having a stand-pipe therein,
in the interior threads 41 of the housing and said
bushing having a recessed seat 48 for cooperation
l means for entraining water pressure to said stand
10 with the ball check 42.
10
In the operation of the iiushing apparatus with , pipe, controllable discharge means cooperable
with said stand-pipe for discharging water into
the check valve housing 4I secured to the exten
sion 40, water pressure in the passageway I6 of
the stand-pipe Il will be effective on the check
15 valve 42 through the passageway 49 of the exten
sion 40, to force and hold said check valve against
its seat 45, thereby closing the opening 43, and
consequently the flushing apparatus will continue
said tank, and a valve controlled discharge pas
sageway separable from said controllable dis
charge means and being cooperable to drain wa 15
ter from the tank into said stand-pipe when the
water pressure to said stand-pipe is shut off.
3. A flushing tank having a stand-pipe through
to operate and function in the usual manner for _ Which Water is entrained to the tank, and a valve
In the event however, water
controlled passageway disposed at an angle from 20
pressure is cut 01T at the source and water from
said stand-pipe adjacent the bottom thereof for
draining water from the tank into said stand
pipe when the stand-pipe is drained.
4. A flushing tank having a stand-pipe extend
ing upwardly through the bottom thereof and 25
adapted to entrain water into said tank, an angu
lar extension projecting from said stand-pipe ad
jacent and above the bottom of said tank and hav
ñushing purposes.
the stand-pipe is drained, the body of water in
the tank 3 will become active on the check valve
42 to force it from its seat 45 and against the re
25 cessed seat 48, and the water will be entrained
from the tank through the aperture 43 past the
check valve 42 and through the recessed seat 48
and bushing 46 and into the passageway 49 to the
passageway l5 of the stand-pipe, thus eliminating
3,0, the hazard of freezing.
Upon establishing water pressure in the stand
pipe, it is obvious that such pressure will operate
to maintain the check valve 42 against its seat 45,
thus closing the opening 43 of the housing 4|.
~ From the disclosure of this invention it is obvi
ous therefore, that a useful purpose is served in its
application to the flushing mechanisms of tanks
and the like whereby an automatic drain of the
tanks is brought about when the water supply in
the piping system of a building is shut off.
Having thus described the invention so that
those skilled in the art will be able to practice the
same, what I desire to secure by Letters Patent is
deñned in what is claimed, it being understood
that various changes in the device shown and de
scribed in detail and not amounting to invention,
may be made without departing from the spirit
and scope of the invention.
What I claim is :50~ 1. A flushing tank having a stand-pipe therein,
ing a passageway therein in communication with
said stand-pipe, a valve housing secured to said 30
extension and having an inlet opening at its ex
tending end, and a check valve in said housing
operable to close said inlet opening when water
pressure is maintained in said stand-pipe.
5. A flushing tank having a stand-pipe extend 35
ing upwardly through the bottom thereof and
adapted to entrain water into said tank, an angu
lar extension projecting from said stand-pipe ad
jacent and above the bottom of said tank and
having a passageway therein in communication 40
with said stand-pipe, a valve housing secured to
said extension and having an inlet opening at its
extending end, and a check valve in said housing
operable to close said inlet opening when water
pressure is maintained in said stand-pipe, said 45
check valve being operable to provide communi
cation between said opening and the passageway
of said extension when the stand-pipe is drained.
ERNEST A. BACH.
50
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