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Патент USA US2120856

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June 14, 1938.
' w. J. coLLlsoN
2,120,856
FLUSH TANK WITH OUTLET SIPHON
Original Filed Nov. 25, 195€
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2 Sheets-Sheet 1
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3mm
W.- JÍ ÚaÍZzlsv/ß
June 14, 1.938--
w. J. coLLlsoN
2,120,856
FLUSH TANK WITH OUTLET SIPHON
original Filed Nov. 25, 193e
2 sneeiS-s?eei 2
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Patented June 14, 1938
2,120,856: ,
UNITED STATES PATENT oEEicE
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2,120,856
FLUSH TANK WITCH> OUTLET sIPHoN
William J. (lollison, Bakersfield, Calif.
0riginal application November 25, 1936, Serial*V
No. 112,806.r Divided and this application April
8, 193'?,Y Serial No. 135,787
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3 claims, (ol. 4-42)
This invention relates to a flush tank with out
let siphon structureand it aims to provide an
improvement upon those devices disclosed in Let
ters Patent issued to me No. 1,812,774 on June 30,
6 1931, No. 1,842,715 on January 26, 193‘2‘and 1,
933,416 on October 3,1, 1933.
Figure'7 is a detail section taken on the line
'I--l of Figure 6, and
Figure 8 is a detail side elevation of the said
lever.
like
Referring
referencespecifically
characterstothe
designate
drawings
like or
wherein
simi
The present application is a division oi my ap- ` lar parts, lil designates an ordinary 0r conven
plication Serial No. 112,806 liled November 25,
1936 for a Flushing device and the ball cock struc
10 ture disclosed herein, is the subject matter of
such pending application.
It is particularly aimed to provide an improved
structure using two inverted U-shape traps or
chambers vented with two breather tubes. and one
15 upright U-shape trapl or chamber constructed
and arranged without moving parts to act as a
valve to control the flow of water from the flush
tank to the toilet bowl.
l
It is further aimed to provide in connection with
20 the novel trigger arrangement and ball cock struc
ture constituting the subject matter of said appli
cation 112,806, novel adjustment screws on the
ball cock and breather tubes on the flushing unit
to synchronize the action of the ball cock and
25 flushing unit so as to properly control the flow
of Water into the flush tank and out of the flush
tional water closet -flush tank in the bottom wall
of which a'water supply pipe I I is connected, ris- y 1
ing to a suitable height and mounting a bracket '350
I2 having a depending outlet or hush pipe i3,
terminating above the bottom wall of the tank
I0. The supply of Water through the pipe ll is
normally cut-off at a conventional Valve It under
control of a vertically slidable plunger l5, suit
ably mounted in the bracket I2 and engaged by
an adjustable screw I6 carried by a lever-il and
pivoted as at I8 to an arm I9 of the said bracket
I2.
.
.
,
Said bracket I2 also has another arm at 22 to A2l)
which is pivoted at 2 I‘, a lever 22 from which an
arm 23 extends and carries a float or ball 2li at
its free end. The lever or trigger 22 carries an
adjustable set screw 25 for co-action with the
free end of the lever I'I. An operating ring 2S 25
is pivoted at 2'I to the trigger lever 22 and to such
ring links 28 are pivoted at 29 and such links by
means of a screw or the like 32, are pivotally and
slidably connected to the lever I'l through an
tank through the flushing unit to the toilet bowl,
and to provide such a construction having the ad
vantages set forth, which »may be incorporated
.
30
30 within the flushing tank, and which may be elongated slot 3| of the lever Il.
Said ring 26 is adapted to b-e actuated by a
adapted to practically all standard flush tanks
and toilet bowls without change therein, to effect ' push button or lever arrangement from without
cheaper manufacture, quieter action and better theA tank.
trap unit generally designated S2 is suitably
appearance.
35
'I‘he more specific objects and advantages will mounted within the tank Ill, having its outlet or `di“,
become apparent from a consideration of the
description following taken in connection with
accompanying drawings illustrating an operative
embodiment.
40
In said drawings:
Figure 1 is a View showing my improvements in
side elevation and as-mounted within a flush tank,
the latter being shown in transverse section;
Figure 2 is a detail vertical sectional View taken
through the trap device;
,
I
Figure 3 is a vertical sectional view taken on
the line 3-3 of Figure 2;
.
Figure 4 is a transverse sectional view taken on
50 the line 4-4 of Figure 2;
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Figure 5 is a transverse sectional view taken on
the line 5-5 of Figure 2;
Figure 6 is a detail enlarged side elevation of
the link connection between the trigger and in
55 let valve lever;
-
. ilush pipe 33 extending water tight through the
bottom wall of the tank and leading to a toilet
or the like. The inlet to the trap device at 34
is above the bottom wall of the tank-and a tor
tuous passageway is provided through the trap '«
device providing a trap as at 35, an inverted trap
as at 36, and an air chamber 3l'.
kA refill tube 38 is connected to the trap device,
extending upwardly therefrom, thence down
wardly, and thence upwardly terminating within
the lower end oi the pipe I3.4 Also connected to
the trap device and communicating with the air
chamber 31 is a breather pipe 39. Adjacent the
breather pipe 39 is a second breather pipe et, í.
extending above and thence downwardly and be- '3
ing connected to the trap device in communica
tion with the inverted trap or chamber 3B. It
will be noted that the inlet or lower end of the
breather pipe 39 is slightly above the inlet or 55
2
2,120,856
lower end of the breather pipe 40 and the latter
is slightly above the lowest water level.
In the description oi the operation of the de
vic‘e, three water levels will be referred to as have
been indicated in Figure 1 of the drawings, name~
ly high water level, normal water level, and low
est water level. The trigger ring 26 is actuated
Y10
1. A device of the class described having a flush
tank, a water supply pipe rising therein, said
pipe having a downwardly extending discharge
pipe, float control means, a valve controlled by
the later to govern the supply of water through
the ñrst mentioned pipe, a trap device within the
tank having a flush pipe leading therefrom, said
by a push button or lever arrangement or other~
trap device having an inlet below the water level
wise from without the tank which raises the same,
and a passageway therefrom to the flush pipe of
breaking the lock between the ring 26 and links
28, which releases the pressure on the lever I‘I,
connected portions of U-shape one above the
other, a reñll pipe extending from adjacent the
allowing the water to enter the tank IIJ through
the pipe I3. This causes the water to rise in
the tank I0 from the normal water level ,to the
lower end of the discharge pipe to the upper por
tion of the interior of the trap device, said reñll
15 high water level, at which point it displaces the
air in chamber 36, which fills with water through
pipe adjacent said lower end of the discharge pipe
being upturned and engaging in the discharge 15
pipe, a breather pipe communicating with the in
the inverted U-trap 31. The water then sets upY Y terior of the trap device at the upper portion, and
siphonic action through the U-trap 35 over the a breather pipe communicating with the interior
inverted U-trap 36, the water travelling thence of the trap device at the upper portion ofthe
20 down through the regular flush pipe 33 into the
other U-shape passage therein.
toilet bowl. As the water level lowers in tank iii,
2. A device of the class described having a ñush
the ñoat ball 24 drops with the water level caus
tank, a water supply pipe rising therein, said pipe
ing the ring trigger plate 2 6 and connecting links having a downwardly extending discharge pipe,
28 to automatically fall into locking position.
iloat control means, a valve controlled by the lat
25
When thewater level fallsy below the lower end ter to govern the supply of water through the iirst
of breather pipe 39, the upper end of which opens
into the chamber or trap 3l, air enters pipe 39
and ñlls chamber 36. A short interval later, the
water falls below the open end of the breather
30 pipe 40 which extends above the high water level,
and air enters chamber 39. An inverted U-trap
is formed returning down and opening into the
trap or chamber 3G which breaks the siphonage
pull at this point and leaves U-trap 35 filled with
35 water which seals chamber` 36 and causes an air
pressure to build up therein as the water level
rises in the inlet 34 of the trap device and in the
tank I 0 to a predetermined normal water level
which is regulated by the adjustment screw I 6.
40
The adjustment screw 25 presses down on the
lever Il and regulates the interval of time which
float ball 24 remains at the lowest position, which
allows chambers 2ï and 2S to become filled with
air before the rising water level seals chamber
45 36 by rising aboveV the lower ends of breather
pipes 39 and 40. Refill pipe 38 extends below
the lowest water level and above the highest
water level, forming a U-trap at the lowest point.
Water entering the flushing unit through the re
50 ñll pipe 38 flows into U-trap 35, causing the water
level therein to rise, overñowing through the sec
ond inverted U-trap 3B and thence through the
flush pipe 33 to reñll the toilet bowl.
It will be noted that the ,adjusting screw I6
55 slows down the ball cock 24 at the lowest water
level, such hesitation allowing the air chambers
to reñll with air. The air tubes or vents 39 and
40 are breaker vents and also silencers as they
do not make a hissing noise. The slotted connec
60 tion at Sli-3| and screw I6 co-act as they allow
the feed of the incoming water to be slowed down,
say for a few seconds, to allow the air cham
bers to refill with air.
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It will be noted that the plunger I5 is loose and
65 not connected to the ball cock valve at I4. The
water pressure opens the ball cock valve when
the lever I'I with the screw I6 disengages it. Back
siphonage will close it shut and tight.
.
Various changes maybe resorted to provided
70 they fall within the spirit and scope of the in
vention.
I claim as my invention:
mentioned pipe, a trap device within the tank
2.5
having a ñush pipe leading therefrom, said trap
device having an inlet below the water level and
a passageway therefrom to the flush pipe oí con
nected portions of U~shape one above the other,
a reñll pipe extending from adjacent the lower
end of the discharge pipe to the upper portion
of the interior of the trap device, said reñll pipe
adjacent said lower end of the discharge pipe
being upturned and engaging in the discharge '
pipe, a breather pipe communicating with the
interior of the trap device at the upper portion,
and a breather pipe communicating with the
interior of the trap device at the upper portion
of the other U-shape passage therein, the second 40
mentioned breather pipe having its lower end be
low the lower end of the other breather pipe, said
second mentioned breather pipe being U-shaped
and extending above the high water level.
3. A device of the class described having a iiush
tank, a water supply pipe rising therein, said pipe
having a downwardly extending discharge pipe,
float control means, a valve controlled by the
latter to govern the supply of water through the
first mentioned pipe, a trap device within the
tank having a flush pipe leading therefrom, said
trap device having an inlet below the water level
and a passageway therefrom to the'ñush pipe of
connected portions of U-shape one above the
other, a reñll pipe extending from adjacent the îbl Ul
lower end of the discharge pipe to the upper por
tion of the interior of the trap device, said reñll
pipe'adjacent said lower end of the discharge
pipe being upturned and engaging in the dis
charge pipe, a> breather pipe communicating with
the interior of the trap device at the upper por
tion, a breather pipe communicating with the in
terior of the trap device at the upper portion of
the other U~shape passage therein, the second
mentioned breather pipe having its lower end be
low the lower end of the other breather pipe, said
second mentioned breather pipe being U-shaped
and extending above the high water level, the
»reñll lpipe also extending above the high water
level.
WILLIAM J. COLLISON.
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