Improvements in Water-closet Valves.
Year: 1899

page_text: Date of Application, 29th Sept., 1899-Accepted, 13th Jan., 1900
COMPLETE SPECIFICATION.
Improvements in Water-closet Valves.
I, EARL G. WATROUS, of 63, Market Street, Chicago, Illinois, United States of
America, Engineer, do hereby declare the nature of this invention and in what
manner the same is to be performed to be particularly described and ascertained
in and by the following statement:-
My invention has for its object the provision of an improved slow-closing
water-closet valve, adapted more especially to be automatically operated by the
seat but also capable of use as a hand-operated valve. Its novelty will be herein-
after set forth and particularly pointed out in the claims.
In the accompanying drawings, Figure 1 is a perspective view of a closet pro-
vided with my improved valve arranged to be automatically operated by the seat;
Figure 2 a detail top-plan view of the rear portion of the seat and its hinges and
co-operating devices; Figure 3 an enlarged sectional detail on the line 3-3 of
Figure 2; Figure 4 a middle vertical section of the valve; Figure 5 a horizontal
section on the line 5-5 of Figure 4; Figure 6 a perspective detail of the adjust-
able inlet valve in the supply pipe; and Figure 7 a perspective detail of the lifting
arm on the rock-shaft.
The same letters of reference are used to indicate corresponding parts in the
several views.
Describing first the novel construction of the valve, and later the means for
operating it, and referring more particularly to Figure 4, the main casing is com-
posed of the middle body portion A having upon one side the pipe-connection B,
a cap or dome C at its upper end, and a pipe D screwed into its lower end and
communicating with the closet. Within the upper part of this casing is secured
an open-ended cylinder E which in the present instance is provided at its lower
end with an outwardly projecting flange which seats upon an annular shoulder
formed upon the inner surface of the casing A and is confined in place by the lower
end of the cap C, being clamped between said cap and shoulder when the cap is
screwed into place in the upper end of the casing A. Tight joints are insured by
rubber packing rings, the lower one of which, F, will be hereafter referred to.
The provision of the separate cylinder E within the casing or cap C (instead of
employing the walls of the casing as the cylinder to receive the piston as usual)
produces an annular sediment chamber surrounding the cylinder, to receive the
sediment deposited by the water within the cap and prevent it lodging between
the piston and cylinder walls and causing wear of said parts.
Fitting within the cylinder E and adapted to move up and down therein is a
piston G having a depending tubular stem H which carries, beneath the piston G.
the main valve H' which co-operates with an annular shoulder or seat I formed
upon the internal surface of the casing A. The main valve H' may in the present
instance be said to be composed of three parts, a disk a formed integral with the
central tube H and having an up-turned flange b, a rubber ring c fitting against
the under side of the disk a, and a nut d screwed upon the threaded exterior of

page_text: the tube H, beneath the ring c and serving to clamp the latter between the nut
and the under surface of the disk a. The nut & has a smooth periphery adapted
to pass freely through but approximately fit the central hole through the valve-
seat I. This particular construction of the main valve H¹ is not essential to the
main features of my invention.
Screwed upon the lower end of the piston-stem or tube I is a flanged nut or
disk J, constituting a supplemental valve, for a purpose hereafter explained.
Extending vertically through the tube H is a smaller tube K, open at its
extreme lower end and partially closed at its extreme upper end by a screw L
provided with a groove e constituting a minute by-pass or vent between the interior
of the tube K and the interior of the cap C above the piston G. Carried by the
lower end of the tube is a circular casting, M. having in the present instance
a convex upper surface connected by an integral stem with the lower end of the
tube K, the internal bore of the latter being extended downward through the
stem M and member M. The stem M terminates in a shoulder f a short distance
beneath the lower end of the outer one of the two central tubes H, so that the
inner tube K and parts carried by it are free to move up and down a limited
distance independently of the tube H and parts carried by it. The stem M¹ is
provided with a recess, Figure 7, engaged by the end of an arm O fast upon a
rock-shaft P having a suitable bearing in the casing as hereafter described. Upon
rocking the shaft P in a direction to lift the arm O the latter will lift the
stem M¹ and parts carried by it until the shoulder f contacts with the lower end
of the larger tube H, whereupon further movement.of the rock-shaft P and arm ()
will lift the tube H and parts carried by it, including the main valve and the
piston G.
The tube K does not fit tightly within the tube H, but on the contrary, there is
a passage-way between them, and at its extreme upper end of the tube K passes
through a hole in the top of the hollow piston G, which hole is considerably
larger than the tube, to afford free passage between them. Secured upon the
upper end of the tube K, in the present instance by being screwed upon the
screw L, is a nut Q consistuting a valve and adapted to rest, in its lower position,
upon a rubber washer R upon the upper surface of the piston G and close the
passage-way around the upper end of the tube K. The latter opens into the
interior of the hollow piston G by ports i.
The operation of the parts under the above described construction, assuming the
interior of the casing A above the main valve and the cap C, to be filled with
water under pressure, is as follows: Upon rocking the shaft P in a direction to
swing. its arm O upward the latter will at the beginning of its movement lift the
inner tube K independently of the tube H, which will serve to raise the valve Q
at the upper end of the tube K from its seat upon the top of the piston G, thereby
placing the interior of the cap C in free communication with the tube H and
thence downward through the same to the interior of the casing beneath said tube.
The provision thus made for the escape of the water within the cap C will permit
the piston G to be lifted in its cylinder E by the further upward movement of
the arm O and inner tube, the shoulder f at the lower end of the latter engaging
the lower end of the tube H as before explained. A full stroke of the shaft P
and arm O will carry the tube H upward to position for the upper edge of the
flange b of the disk a to contact with and bear against the under side of the pack-
ing ring F whose inner edge projects inward beneath the piston G. This will
lift the main valve from and carry it entirely above its seat I and bring the
disk Jupon the lower end of the tube H into the circular opening in the seat I,
which it snugly fits. So long as the arm O is held in elevated position, therefore,
the water supply will be cut off from the closet (and also from the chamber above
the piston) by the disk J fitting within the valve-seat I, excepting the small
quantity of water permitted to pass through the opening during the interval
between the lifting of the main valve from its seat and the bringing of the disk J
into the
same.

page_text: When the rock-shaft P and the arm O are now released the inner tube K and
parts carried by it will instantly drop downward until the valve. Q upon the
upper end of the tube K rests upon the washer R upon the top of the piston,
thus cutting off the free communication between the cap C and interior of the
piston G and tube H. As the tube H and parts carried by it (including the
piston G) then begin to descend the partial vacuum created within the cap C by the
descent of the piston G in the cylinder E will retard the downward movement of
the parts, and they will be permitted to move downward only so fast as water or
air can pass from the interior of the inner tube K to the cap C through the groove e
in the screw L. By regulating the size of this by-pass by adjusting the screw L,
(the groove e being tapered) the closing movement of the valve, can be gaged as
desired.
1
It will be understood that when the main valve is closed, as in Figure 4, the
interior of the casing A, between the upper side of the main valve and its seat, and
the under side of the piston G, is filled with water under pressure admitted through
the pipe-connection B and the coupling B" by the open valve C, and that when
the main valve is lifted from its seat water under pressure rushes downward
through the open valve seat and fills the lower part of the casing A and pipe D,
the escape of the water to the closet through the pipe 1) not being as free as its
admission through the valve seat when the valve is lifted. Whenever the valve
is opened, therefore, the lower part of the valve casing and pipe D will be filled
with water under pressure, and will be in open communication through the
hollow piston-rod H and central tube K with the space within the cap, U above
the piston G, so that at the beginning of the upward movement of the valve and
piston such water under pressure may pass upward through the tubes H. and K
into the cap C. The continued upward movement of the valve and piston will,
however, displace part of the water in the cap C and the water so displaced will
escape downward through the tubes H. and h. At the closing movement of the
main valve and downward movement of the piston such free communication with
the interior of the cap C will be cut off by the closing of the valve Q, leaving only
the minute passage or by-pass e, through which the water will again pass upward.
into the cap C as the main valve slowly descends upon its seat. After the valve
is closed and during the time it remains closed, therefore, the cap: C. and ithe
middle portion of the main casing A will both remain filled with water, as hereto-
fore stated.
_ he ton
The purpose of the flange b projecting upward from the disk a of the main valve
and adapted to seat, at the end of the upward movement of the parts, against the
packing-ring F, is to form a tight joint at that point and thereby prevent. the
water under pressure leaking past the piston G within the cylinder E during the
time the main valve, is lifted from its seat, which might otherwise occur and
produce back-pressure upon the upper end of the piston G. This provision.may be
omitted where the valve is used as a hand-operated valve, as may also the disk J
upon the lower end of the tube H, since, in such event the main valve is. simply
lifted from its seat by means of the operating handle and at once released and there
is no occasion for cutting off the flow of water to the closet while the main valve
is open.
The circular member M carried by the lower end of the inner tube K approxi-
mately (but not snugly) fits the internal bore of the extreme lower end of the
valve casing A and pipe D. Figure 4, but the casing A flares outward above its
lower end so that when the parts are lifted by rocking the shaft P and swinging
upward the arm 0 there will be a large free passage within the casing A around
the member M. As the parts descend, however, and the main valve approaches
its seat, the downward movement of the member M through the inwardly contract-
ing lower end of the casing A will gradually reduce the size of the passage around
said member M and restrict the flow of water from the interior of the casing A to
the pipe D and closet. As the lower portion d of the main valve enters the seat I
1

page_text: the water within the casing beneath the valve will be trapped as it were between
said valve and the disk M, and as the valve is of larger diameter than the disk it
follows that the parts can therefore descend only so fast as the escape of the water
downward around the disk M will permit. The provision of this construction
and arrangement of the parts prevents the main valve being forced suddenly
against its seat at the end of its closing movement and the consequent "hammer-
ing" which might otherwise occur.
The chamber within the cap C of the casing constitutes what may be called
the retarding chamber, the space within the casing A opposite the pipe connec-
tion B (between the main valve and under side of the piston) constitutes the inlet
chamber, and the space beneath the main valve and its seat, within the casing,
constitutes the discharge chamber, and it will be seen that the retarding chamber
is in communication by central supply and exhaust passages with the discharge
chamber in the lower part of the casing, the water in the retarding chamber
escaping downward through said central passages as the main valve and piston
are lifted, and passing upward through the supply passage, from the
discharge chamber to the retarding chamber, as the piston descends
and the main valve closes. When the valve is closed the water pressure is
entirely cut off from the retarding chamber and the latter is in communication
(by the minute supply passage or by-pass) with the atmosphere through the
discharge chamber and closet. These conditions are novel in valves of this
character, and are of importance in the operation of such valves. Owing to the
fact that the retarding chamber has no communication with the inlet chamber,
or water supply (except through the discharge chamber), and owing to the fact
that the water pressure in the discharge chamber is gradually reduced as the main
valve approaches its seat and cuts off communication with the inlet chamber it
follows that there is no considerable pressure in the retarding chamber during the
closing movement of the valve, and the result is that the latter moves to its seat
slowly and gently, without any sudden shock or jar or hammering at the end of its
closing movement, as is likely to occur where the supply passage or by-pass for
the retarding chamber communicates directly with the inlet chamber or pressure
supply as is common in other valves of this character.
A further novel feature of my new valve relates to an adjustable throttle-valve
interposed in the supply pipe, for regulating or entirely cutting off the supply of
water admitted to the main valve of the closet. As before explained the main
casing A is provided upon one side with the pipe connection B which is coupled
by a union nut B₁ with a short pipe section 13 interiorly threaded at its opposite
end to be screwed upon the exteriorly threaded end of the supply pipe. A suit-
able packing ring is interposed between the parts B and B to form a tight joint,
while the member B is provided at its inner end with an inturned flange adapted
to form a seat for a valve C' having a convex outer surface from whose center
projects a threaded stem C passing through a threaded hole in a bridge D' extend-
ing across the interior of the member B". The valve C is provided upon its
opposite edges with slotted ears a¹ which engage ribs formed upon the inner
surface of the pipe connection B and serve to prevent rotation of the valve C¹ and
to guide it in its inward and outward adjustments. In the drawing the valve C¹
is shown in a position intermediate its closed position and its maximum open
position. By slightly loosening the coupling nut B', so as to permit independent
rotation of the members B and B", and turning the member B" in one direction
or the other, the valve C will be moved toward or from its seat, to reduce or
increase the size of the passage around it, as may be desired. In initially setting
or adjusting the valve C¹ the member B will be turned as above indicated
and the coupling nut B¹ then tightly screwed up again; but after the main valve
has been connected to the supply pipe and to the closet the practice will be to
disconnect the valve from the closet and loosen the coupling nut B' and then
turn the whole valve in one direction or the other relatively to the fixed member B"
screwed upon the supply pipe, and after the valve C¹ has been adjusted to the

page_text: desired position the main valve will be reconnected to the closet and the coupling
nut B₁ tightened again.
A tight joint is effected and maintained between the rock shaft P and the valve
casing by the novel means shown more particularly in Figure 5. As there shown
the rock-shaft is surrounded by a bushing 1" slipped over the shaft from its oppo-
site end and screwed into the casing A. The rock-shaft P is provided with a
shoulder c' between which and the inner end of the bushing P¹ is confined a pack-
ing-ring, and the rock-shaft is constantly pressed outward and its shoulder c¹
forced tightly against the packing-ring d by a spring e¹ confined between the
inner end of the rock-shaft and the opposite wall of the casing. In the present
instance this spring is a coiled spring held in place at one end by engaging a
stud f formed upon the inner face of the casing and having its opposite free end
projected centrally from the coil and engaging a tapered recess formed in the
end of the rock-shaft. This particular construction and arrangement of the
spring e¹ and its engagement with the rock-shaft facilitates the ready assemblage
and self-adjustment of the parts, but may be varied without losing the main
advantages of this feature of my invention, which consist in providing and readily
maintaining a tight joint by the yielding pressure of the shoulder against the
packing-ring d without producing objectionable friction, as is the case where
an ordinary stuffing-box is employed. This is particularly important where the
valve is to be automatically operated by the seat, in the manner to be now
explained.
As shown in Figure 1 the rock-shaft P has secured to and projecting forwardly
form its outer end a short arm R connected by a depending adjustable link k
with the rear end of an arm R", Figure 2, formed upon and projecting rearwardly
from a sleeve S, Figures 1, 2, and 3, which sleeve has bearings at its opposite ends
in vertical supports S secured at their lower ends in the closet T. Extending
longitudinally through the sleeve S is a rod U which is surrounded at one end
by a coiled spring U¹ connected at one end to the rod and at its opposite end
projecting therefrom and confined in a recess at gl in one of the supports St.
its opposite end the rod U is exteriorly threaded and extends through a threaded
hole in the otherwise closed end of the sleeve S, and has screwed upon its outer
end a lock nut V engaging the end of the sleeve S and by tightening which the
rod U and sleeve are locked together. The rod U has a nick formed in its end
for the reception of a screw-driver so that by loosening the lock-nut V the rod
may be turned in one direction or the other to regulate the tension of the
spring U
At
As will be understood from the foregoing, the locking of the rod U and sleeve S
together by means of the nut V causes the spring U connected to the rod U to
exert its force upon the sleeve S. The latter is provided near its middle with a
forwardly projecting arm W, which extends under the rear edge of the seat X.
The latter has secured to it hinges Y provided at their rear ends with the cup-
shaped bearings fitting over the opposite ends of the sleeve S, by which the seat is
supported and held in place. The spring UI tends to turn the sleeve S in a direc-
tion to throw the arm W upward, its movement in such direction being limited
by any suitable means, in the present instance by the limit of downward move-
ment permitted the parts connected to the rear end of the arm R, Figure 1.
The seat X is free to be swung up and down independently of the other parts
described, and in normal pósition rests upon the arm W and is held slightly
elevated thereby as in Figure 1. When entirely depressed upon the closet T it
will rock the sleeve S and thereby throw the rear end of the arm R" upward,
thereby rocking the shaft P and operating the main valve as heretofore described.
When the seat is released the spring U¹ will return the parts toward normal
position and permit the main valve to gradually close as heretofore described.
While my new valve has been designed more particularly for automatic opera-
tion by the seat, it will be understood that it may be employed as a hand-operated

page_text: valve, in which case the rock-shaft P will be simply extended as usual to form
a handle.
Having now particularly described and ascertained" the nature of this inven-
tion, and in what manner the same is to be performed I declare that what I
claim is:-
1. In a water closet valve having inlet, discharge and retarding chambers,' a
supply passage or by-pass connecting the retarding chamber with the discharge
chamber and serving to control the closing movement of the valve, substantially
as described.
2. In a water closet valve having inlet, discharge and retarding chambers, a
supply passage or by-pass for the retarding chamber connecting such chamber
with the discharge chamber and controlling the closing movement of the valve,
and means for gradually reducing the water pressure in the discharge chamber
as the valve closes, substantially as described.
3. In a water closet valve having inlet, discharge and retarding chambers, an
exhaust or escape passage connecting the retarding chamber with the discharge
chamber, a valve controlling such passage and operating to open the same at the
opening movement of the main valve and to close the same at the closing move-
ment of the main valve, and a supply passage or by-pass for the retarding chamber
connecting such chamber with the discharge chamber and serving to control the
closing movement of the main valve substantially as described.
4. In a water closet valve having inlet, discharge and retarding chambers, an
exhaust or escape passage for the retarding chamber communicating with the
discharge chamber, a valve controlling the same, a supply passage or by-pass for
the retarding chamber connecting the same with the discharge chamber, and
means for reducing the water pressure in the discharge chamber as the main
valve closes, substantially as described.
5. In a water closet valve having inlet, discharge and retarding chambers
arranged in axial line with each other, a central supply passage or by-pass for
the retarding chamber extending through the inlet chamber and connecting the
retarding chamber with the discharge chamber, substantially as described.
6. In a water closet valve having inlet, discharge and retarding chambers
arranged in axial line with each other, a central exhaust or escape passage extend-
ing from the retarding chamber through the inlet chamber into the discharge
chamber, a valve controlling such passage, and a central supply passage or by-
pass for the retarding chamber also extending through the inlet chamber and
connecting the retarding chamber with the discharge chamber, substantially as
described.
7. In a water closet valve having a middle inlet chamber and discharge and
retarding chambers upon either side and in axial line with it, a main valve and a
piston moving together, the former controlling communication between the inlet
and discharge chambers and the latter serving to separate the inlet and retarding
chambers, and a central supply passage or by-pass for the retarding chamber
extending through the piston and main valve and connecting the retarding
chamber with the discharge chamber, substantially as described.
8. In a water closet valve having a middle inlet chamber and discharge and
retarding chambers on either side and in axial line with it, a piston separating the
inlet and retarding chambers, a main valve carried by the stem of said piston and
controlling communication between the inlet and discharge chambers, and a supply
passage or by-pass for the retarding chamber extending through the piston and
its stem and communicating with the discharge chamber, substantially as described.
9. In a water closet valve having a middle inlet chamber and discharge and
retarding chambers on either side and in axial line with it, a piston separating
the inlet and retarding chambers, a main valve carried by the stem of said piston
and controlling communication between the inlet and discharge chambers, an
escape or exhaust passage for the retarding chamber extending through the piston

page_text: and its stem and communicating with the discharge chamber, a valve controlling
such passage, and a supply passage or by-pass for the retarding chamber also
extending through the piston and its stem and communicating with the discharge
chamber, substantially as described.
10. In a water closet valve having a retarding chamber for controlling the
closing movement of the main valve, a supply passage or by-pass for said retarding
chamber communicating with the atmosphere when the main valve is closed,
substantially as described.
11. In a water closet valve having a retarding chamber for controlling the
closing movement of the main valve, a supply passage or by-pass communicating
with the water supply during the closing movement of the valve, and cut off there-
from and communicating with the atmosphere when the valve is closed,
substantially as described.
12. In a water closet valve having a retarding chamber for controlling the
closing movement of the main valve, a supply passage or by-pass for said retarding
chamber communicating with the water pressure at the discharge side of the main
valve when said valve is opened, and communicating with the atmosphere through
the discharge end of the valve when the main valve is closed, substantially as
described.
13. In a water closet valve having inlet, discharge and retarding chambers, a
piston separating the inlet and retarding chambers, a main valve moving with
said piston and controlling communication between the inlet and discharge
chambers, and a supply passage or by-pass for the retarding chamber communi-
cating with the water supply during the closing movement of the main valve
and cut off therefrom and communicating with the atmosphere when the main
valve is closed, substantially as described.
14. In a water closet valve having inlet, discharge and retarding chambers, a
piston separating the inlet and retarding chambers a main valve moving therewith
and controlling communication between the inlet and discharge chambers, an
exhaust or escape passage for the retarding chamber, a valve controlling said
passage, and a by-pass or supply passage for the retarding chamber communicating
with the water supply during the closing movement of the main valve and cut
off therefrom and communicating with the atmosphere when the main valve is
closed, substantially as described.
15. In a water closet valve having inlet, discharge and retarding chambers,
a piston separating the inlet and retarding chambers, a main valve carried by the
stem of said piston and controlling communication between the inlet and dis-
charge chambers, and a supply passage or by-pass for the retarding chamber
extending through the piston-stem and communicating with the water supply
during the closing movement of the main valve and with the atmosphere after
said valve is closed, substantially as described.
16. In a water closet valve having inlet, discharge and retarding chambers,
a piston separating the inlet and retarding chambers, a main valve carried by the
stem of said piston and controlling communication between the inlet and discharge
chambers an exhaust or escape passage for the retarding chamber, extending
through the piston and piston-stem, a valve controlling said passage, and a supply
passage or by-pass for the retarding chamber communicating through the piston
and piston-stem with the water supply during the closing movement of the main
valve and with the atmosphere after said valve is closed, substantially as described.
17. In a water closet valve having inlet, discharge and retarding chambers and
a main valve controlling communication between such chambers, a supplemental
valve operating to close communication between the inlet chamber and the
discharge and retarding chambers when the main valve has been fully opened, and
to open communication between said chambers as the main valve closes, sub-
stantially as described.
18. In a water closet valve having inlet and discharge chambers and a main

page_text: valve controlling communication between said chambers, a supplemental valve
moving with the main valve and operating to close communication between the
inlet chamber and the discharge and retarding chambers when the main valve is
fully opened and to open communication between said chambers as the main
valve closes, substantially as described.
19. In a water closet valve having inlet, discharge and retarding chambers,
a piston separating the inlet and retarding chambers, a main valve carried by the
stem of said piston and controlling communication between the inlet and discharge
chambers and a supplemental valve also carried by the stem of said piston and
operating to close communication between the inlet and discharge chambers when
the main valve is fully opened, substantially as described.
20. In a water closet valve having inlet, discharge and retarding chambers
arranged in axial line with each other, a piston separating the inlet and retarding
chambers, a main valve carried by the stem of said piston and controlling com-
munication between the inlet and discharge chambers a supplemental valve also
carried by the stem of said piston and operating to close communication between
the inlet and discharge chambers when the main valve is fully opened, and a
by-pass or supply passage for the retarding chamber extending through the piston
and piston-stem and controlling the closing movement of the main valve, sub-
stantially as described.
21. In a water closet valve having inlet, discharge and retarding chambers
arranged in axial line with each other, a piston separating the inlet and retarding
chambers, a main valve carried by the stem of said piston and controlling com-
munication between the inlet and discharge chambers a supplemental valve also
carried by the stem of said piston and operating to close communication between
the inlet and discharge chambers when the main valve is fully opened, an escape
or exhaust passage from the retarding chamber extending through the piston and
piston-stem, a valve controlling said passage, and a by-pass or supply passage for
the retarding chamber also extending through the piston and piston-stem and
controlling the closing movement of the main valve.
22. The combination, with a closet and its seat, of a valve having inlet,
discharge and retarding chambers a main valve controlling communication between
the inlet chamber and the discharge and retarding chambers, a supplemental valve
operating to close communication between said chambers when the main valve is
fully opened, and means operated by the closet seat to open the main valve,
substantially as described.
23. The combination, with a closet and its seat, of a valve having inlet,
discharge, and retarding chambers, a main valve controlling communication
between the inlet chamber and the discharge and retarding chambers, a supple-
metal valve operating to close communication between said chambers when the
main valve is fully opened, means operated by the closet seat for opening the main
valve, and a by-pass or supply passage connecting the retarding chamber with
the discharge chamber and controlling the closing movement of the main valve,
substantially as described.
24. The combination, with a closet and its seat, of a valve having inlet, discharge
and retarding chambers, a main valve controlling communication between the inlet
and discharge chambers, a supplemental valve operating to close communication
between said chambers when the main valve is fully opened, an escape or exhaust
passage for the retarding chamber, a valve controlling said passage, a supply
passage or by-pass for the retarding chamber, and means operated by the closet
seat for opening both the valve controlling the escape or exhaust passage and the
main valve, substantially as described.
25. The combination, with a closet and its seat, of a valve having inlet,
discharge and retarding chambers, a piston separating the inlet and retarding
chambers, a main valve carried by the stem of said piston and controlling com-
munication between the inlet and discharge chambers, a supplemental valve also

page_text: carried by the stem of said piston and operating to close communication between
said chambers when the valve is fully opened, supply and exhaust passages for the
retarding chamber, and means operated by the closet seat for opening the main
valve, substantially as described.
20. In a water closet valve having a retarding chamber, an open-ended cylinder
located therein and surrounded by an annular sediment chamber, substantially
as described.
27. In a water closet valve, the combination of the casing A, cap C, and open
ended cylinder E located within the cap C and surrounded by the annular sediment
chamber within said cap, substantially as described.
28. The combination of the casing, the cylinder E, the piston G working therein
and provided with the depending tubular stem H carrying the main valve
co-operating with the seat I, the central hollow tube K extending longitudinally
through the piston-stem H and piston G and provided at its upper end with a
by-pass connecting the interior of the tube with the chamber above the piston and
with a valve controlling communication between said chamber and the hollow
piston-stem, said central tube K having limited movement independently of the
piston and main valve, and means for lifting said tube K, substantially as
described.
29. The combination of the casing composed of the body portion A and the
cap C, the open-ended cylinder E secured therein, the hollow piston G working
in said cylinder and having the depending tubular stem H carrying the main valve
co-operating with the seat I, the central tube K extending longitudinally through
the piston-stem H and piston G and provided at its upper end with the screw L
having the by-pass a (connecting the interior of said tube with the chamber above
the piston) and the nut Q screwed thereon and co-operating as a valve with the top
of the piston G, and provided at its lower end with the shoulder f adapted to
permit limited upward movement of the tube K independently of the piston stem
and to then engage the lower end of the piston stem and lift the latter and the
parts carried by it, and means for lifting said tube K, substantially as described.
30. In a water closet valve, the combination of the casing having the valve-
seat I, the cylinder E, the packing-ring F surrounding its lower end, the piston G
working in said cylinder and having the depending stem II, and the main valve H
carried by the stem H and co-operating in its lower position with the seat, I and
in its upper position with the packing-ring F, substantially as described...
21. The combination of the casing, the cylinder E secured therein, the, packing-
ring F surrounding the lower end of said cylinder, the piston G working in said
cylinder and having the depending tubular stem Hi, the main valve carried by said.
stem H and co-operating in its lower position with the seat I and' in its upper
position with the packing-ring F, the central tube K having at. its,,upper end
the by-pass and the valve co-operating with the upper end of the piston G, and
provided at its lower end with the shoulder f adapted to co-operate with the lower
end of the piston-stem H, and means for lifting the tube K, substantially as
described.
32. In a water closet valve, the combination of the casing provided,,with the
valve-seat I, the cylinder E, the piston G working therein and having the depend-
ing stem H, the main valve H' carried by said stem and co-operating in its lower
position with the seat I, and the disk J carried by the stem H beneath the valve H
and co-operating with the seat I when the main valve is in elevated position,
substantially as described.
.
33. In a water closet valve, the combination of the casing having, the seat I,
the cylinder E, the packing-ring F around the lower end of said, cylinder, the
piston G working in said cylinder and having the depending stem, H, the main
valve H carried by said stem and co-operating in its lower position with the
seat I and in its upper position with the packing-ring F, and the disk carried
by the stem H beneath the valve H and co-operating with the seat I when the
valve H is lifted to its upper position, substantially as described.

page_text: 34. The combination of the casing composed of the body portion A and the
cap C screwed into its upper end, the cylinder E provided at its lower end with
an outwardly projecting flange E' confined between the lower end of the cap C
and a shoulder upon the casing A, the packing-ring F confined between said
flange and shoulder and projecting inwardly beneath the cylinder E, the piston G
working in the cylinder E and having the depending stem H, and the main valve H¹
carried by the stem H and provided with the up-turned flange b adapted to
co-operate with the packing-ring F when the valve is in its upper position,
substantially as described.
35. The combination of the casing having the seat I, the cylinder E, the piston G
working therein and having the depending tubular stem H, the main valve H
carried by said stem and co-operating in its lower position with the seat I, the
disk J also carried by said stem beneath the valve H¹ and co-operating with the
seat I to close the same when the valve is in its upper position, the central tube K
extending longitudinally through the stem H and piston G and having at its
upper end a by-pass and a valve co-operating with the upper end of the piston G,
and provided at its lower end with a shoulder f adapted to co-operate with the
lower end of the stem H, and means for lifting the tube K, substantially as
described.
36. In a water closet valve, the combination of the casing A having the seat I
and contracted lower end, the main valve H¹ co-operating with the seat I and
the disk M supported by and movable with the main valve and co-operating with
the contracted lower portion of the casing A in the manner and for the purpose
described.
37. In a water closet valve, the combination of the casing having the contracted
lower portion and the seat I, the cylinder E, the piston G therein having the
depending tubular stem H, the valve H carried by said stem and co-operating
with the seat I, the central tube K extending longitudinally through the stem H
and piston G and provided at its upper end with a by-pass connecting the interior
of said tube with the chamber above the piston, and with a valve co-operating with
the upper end of the piston G, and carrying at its lower end the disk M co-operating
with the contracted lower portion of the casing A, and means for lifting the tube Ķ
and co-operating parts, substantially as described.
38. In a water closet valve, the combination of the open-ended cylinder E,
the hollow piston G therein, the depending tubular stem H, the main valve H¹
co-operating with the seat I, the central tube K extending through the piston-
stem H and hollow piston G and provided within the latter with the ports i, the
screw L screwed into the upper end of the tube K and provided with the groove e,
and the nut Q carried by said screw L and co-operating as a valve with the upper
end of the piston G to control the passage h around the tube K, and means for lift-
ing the tube K and co-operating parts, substantially as described.
39. The combination, with the valve casing having the pipe-connection B, of
the pipe-section B provided with the bridge D', the coupling nut B¹, the valve C
having the threaded stem C" passing through the bridge D', and means for
preventing rotation of the valve Ci relatively to the pipe-connection B, substantially
as described.
40. The combination, with the valve casing having the pipe-connection B pro-
vided with the ribs b¹, the pipe-section B having the bridge D1 and inturned
flange forming a valve-seat, the coupling nut B', and the valve C¹ having the
threaded stem passing through the bridge D' and provided with the grooved ears a¹
engaging the ribs 61 upon the pipe-connection B, substantially as described.
41. The combination of the valve casing A, the bushing P₁ screwed therein,
the rock-shaft P extending through said bushing and provided with the flat
annular shoulder c', the packing-ring d'interposed between said shoulder and the
inner end of the bushing P, and the spring el pressing the shoulder c¹ against the
packing-ring d¹, substantially as described.
42. The combination of the casing A having the stud f¹, the bushing P¹ screwed

page_text: therein, the rock-shaft P extending through said bushing and provided with the
annular shoulder d¹ and having the tapered central recess in its inner end, and
the coiled spring e engaging at one end the stud f upon the casing and having its
opposite end centrally projected into the tapered recess in the end of the rock-
shaft P, substantially as described.
43. The combination, with the closet T and seat X, of the valve casing, a
cylinder therein, a piston working in said cylinder and having a stem carrying
the main valve, a connection between said piston-stem and the closet seat for
moving said stem and piston in one direction to open the main valve when the
seat is depressed, and a by-pass through the piston furnishing communication
between the interior of the valve casing at opposite sides of the piston and con-
trolling the closing of the main valve, substantially as described.
44. The combination, with the closet T and seat X, of the valve casing, a cylinder
therein, a piston working in said cylinder and having a stem carrying the main valve,
a connection between said piston stem and the closet seat for moving the piston
stem and piston in a direction to open the main valve when the seat is depressed,
a supplemental valve controlling communication between opposite sides of the
piston automatically opened by the depression of the closet-seat prior to the open-
ing of the main valve and automatically closed at the movement of the main valve
toward its seat, and a by-pass through the piston furnishing communication
between the opposite sides of the piston during the closing movement of the main
valve and serving to control such movement, substantially as described.
45. The combination, with a closet and a spring-supported depressible seat
therefor, of a slow-closing valve embodying a main valve for normally cutting
off the supply of water from the closet, and a supplemental valve co-operating with
the main valve seat to temporarily cut off said supply when the main valve is
lifted from its seat by the depression of the closet seat, whereby the main valve
is opened by the depression of the closet seat and the supply of water cut off during
the time the seat remains depressed, substantially as described.
46. The combination, with a closet and a spring-supported depressible seat
therefor, of a slow-closing valve comprising a main valve operating to normally
cut off the supply of water from the closet, and a supplemental valve moving
with the main valve and co-operating with the main valve seat to cut off the supply
of water from the closet when the main valve is moved from its seat by the
depression of the closet-seat and to admit the supply of water to the closet when
the closet seat is released and the main valve returns towards its seat.
47. The combination, with a closet and a depressible seat therefor, of a slow-
closing valve comprising a main valve co-operating with a circular opening or
valve-seat in the valve casing, and a circular disk moving with the main valve
and adapted to enter and close the main valve-seat when the main valve is moved
from its seat by the depression of the closet seat, substantially as and for the
purpose described.
48. The combination, with the closet T and scat X, of the valve casing, a cylinder
therein, a piston working in said cylinder and having a stem carrying the main
valve, a disk also carried by said stem and adapted to close the valve-seat when
the main valve is moved therefrom, a connection between the piston stem and
closet-seat for moving said stem to open the main valve when the seat depressed,
and a by-pass between opposite sides of the piston controlling the closing move-
ment of the valve when the seat is released, substantially as described.
49. The combination of a closet T, the spring-pressed rocking sleeve S suitably
supported thereon and provided with the forwardly projecting arm W, the hinged
seat X resting upon the arm W, and a slow-closing valve connected to and operated
by the sleeve S, substantially as described.
50. The combination of the closet T, supports S', rocking-sleeve S mounted
thereon and provided with the forwardly extending arm W and the rearwardly
projecting arm R", a spring operative on the sleeve S to press the arm W upward,
the hinged seat X resting upon the arm W, and a slow-closing valve connected

page_text: with the arm R so as to be operated by the seat X, substantially as de-
scribed.
51. The combination of the closet T, supports S¹, sleeve S journaled therein,
rod U extending through sleeve S and having a threaded engagement therewith
at one end, the lock-nut V for locking the rod U to sleeve S, the spring U¹ sur-
rounding rod U and connected thereto at one end and at its opposite end to a
fixed point, the lid X having the hinges Y hung at their rear ends upon the oppo-
site ends of the sleeve S, the arm W projecting forward from the sleeve S beneath
the seat X, and the arm R" projecting rearwardly from said sleeve, and a slow-
closing valve having a connection with the arm R" and automatically operated
by the seat X, substantially as described.
Dated this 29th day of September 1899.
HERBERT HADDAN & Co.,
Agents to Applicant,
18, Buckingham Street, Strand, W.C.