Improvements in Water Closets.
Year: 1892

page_text: Date of Application, 6th Oct., 1892
Complete Specification Left, 6th July, 1893-Accepted, 2nd Sept., 1893
PROVISIONAL SPECIFICATION.
Improvements in Water Closets.
We, SIDNEY JENNINGS, and JOHN MORLEY, both of Palace Wharf. Stangate,
Lambeth, in the County of Surrey, Sanitary Engineers, do hereby declare the
nature of this invention to be as follows:-
:-
In these closets
when a discharge of water from a flushing cistern is caused to take place into the
closet basin a syphon discharge from the basin is at the same time set into action
30 that the contents of the basin are rapidly withdrawn.
This invention relates to water closets known as syphon closets.
In the Specification of a former Patent No. 14,773 of 1891, we described
means whereby this syphoning action was prevented from being brought into action
by the pouring of slops into the basin. The water supply pipe was branched one
branch leading into the basin the other into a bent pipe leading to the top of the
descending limb of the syphon discharge-this bent pipe was also itself branched
one branch leading to the syphon discharge as above mentioned whilst the other
was fitted with a valve opening inwards and normally admitting air freely to the
top of the syphon discharge passage to prevent the syphon discharge from being
brought into action by the pouring of water into the basin-but when a discharge
of water through the water supply pipe took place some of the water impinged
against the valve and held it closed so that the syphoning action could then take
place freely.
We have found that by continuing upwards for a distance the branch pipe which
was fitted with the air inlet valve that it is unnecessary to fix an india rubber or
other such like valve at the top of this pipe and that the water will rise up a
distance into it and thereby itself form a valve for preventing the descent of air
into the syphon discharge pipe.
The pipe after being led upwards for a distance may be left open to the outer
air or be led into an air ventilator pipe.
When the long limb of the syphon discharge pipe is made to discharge into a
trap between the closet apparatus and the soil pipe we form the trap with a socket
down through which the pipe passes.
We place around the pipe an elastic collar to fit around it and to rest upon the
top of the socket. Above the elastic collar we place a ring which has a flange
descending from it all around its exterior. The flange encloses the elastic collar
and when the ring is drawn downwards towards a flange on the top of the socket
by bolts passing between the two the elastic collar is compressed and being pre-
vented by the descending flange from expanding outwards it is forced inwards
against the pipe and a tight joint is secured.
To allow the air to escape from the lower end of the descending limb of the
syphon to allow of the syphon being freely brought into action we make an air
passage in the portion of the trap which dips downwards into the liquid in the trap
and forms a seal. This passage at its lower end we make to open into the side of
the trap to which the syphon pipe is connected just above the water level and at
the top we form it with a screwed union to which an air pipe may be secured. If
no trap is used then this air outlet pipe is not required.
Dated this 6th day of October 1892.
CARPMAEL & Co.,
Agents for the Applicants.

page_text: COMPLETE SPECIFICATION.
Improvements in Water Closets.
We, SIDNEY JENNINGS and JOHN MORLEY both of Palace Wharf, Stangate,
Lambeth, in the County of Surrey, Sanitary Engineers, 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 :-
This invention relates to water closets known as syphon closets. In these closets
when a discharge of water from a flushing cistern is caused to take place into the
closet basin a syphon discharge from the basin is at the same time set into action
so that the contents of the basin are rapidly withdrawn.
In the Specification of a former Patent No. 14,773 of 1891 we described means
whereby this syphoning action was prevented from being brought into action by
the pouring of slops into the basin. The water supply pipe was branched one
branch leading into the basin the other into a bent pipe leading to the top of the
descending limb of the syphon discharge-this bent pipe was also itself branched
one branch leading to the syphon discharge as above mentioned whilst the other
was fitted with a valve opening inwards and normally admitting air freely to the
top of the syphon discharge passage to prevent the syphon discharge from being
brought into action by the pouring of water into the basin-but when a discharge
of water through the water supply pipe took place some of the water impinged
against the valve and held it closed so that the syphoning action could then take
place freely.
We have found that by continuing upwards for a distance the branch pipe
which was fitted with the air inlet valve that it is unnecessary to fix an india rubber
or other such like valve at the top of this pipe and that the water will rise up a
distance into it and thereby itself form a valve for preventing the descent of air
into the syphon discharge pipe.
The pipe after being led upwards for a distance may be left open to the outer
air or be led into an air ventilator pipe.
When the long limb of the syphon discharge pipe is made to discharge into a
trap between the closet apparatus and the soil pipe we form the trap with a socket
down through which the pipe passes.
We place around the pipe an elastic collar to fit around it and to rest upon the
top of the socket. Above the elastic collar we place a ring which has a flange
descending from it all around its exterior. The flange encloses the elastic collar
and when the ring is drawn downwards towards a flange on the top of the
socket by bolts passing between the two the elastic collar is compressed and being
prevented by the descending flange from expanding outwards it is forced inwards
against the pipe and a tight joint is secured.
To allow the air to escape from the lower end of the descending limb of the
syphon to allow of the syphon being freely brought into action we make an air
passage in the portion of the trap which dips downwards into the liquid in the trap
and forms a seal. This passage at its lower end we make to open into the side of
the trap to which the syphon pipe is connected just above the water level and at
the top we form it with a screwed union to which an air pipe may be secured. If
no trap is used then this air outlet pipe is not required.
The drawing annexed shows a water closet constructed in this manner.
Figure 1 is a longitudinal vertical section and Figure 2 is a side elevation.
Figure 3 a back elevation and Figure 4 a plan.
The supply pipe a from the water waste preventer or flushing cistern or other
source is branched at the bottom one branch a' leading into the pan in the
ordinary manner while the other branch a² is bent round and carried upwards to
such a height that no water shall pass out from it at the top when water is allowed
to rush down the supply pipe a to the closet basin. Usually a beight somewhat

page_text: greater than half the distance between the flushing cistern and closed basin is
sufficient to ensure this. From this upwardly ascending pipe a branch a³ is led
downward into the top of the long leg of the syphon discharge pipe 6 from
the pan.
up
When slops are poured into the pan no syphonic action can be set up because air
can enter freely to the top of the syphon through the pipe a' but when the handle
is pulled the flow of water down the pipe a is divided, part passing by the branch
rushes the branch
part
pipe a' and flushing the pan in the ordinary manner while
pipe a' and prevents air from passing down it to the syphon discharge pipe, and
part passes by the branch a to the top of the long leg b₁ of the syphon discharge
pipe starts the syphonic action and empties the pan. c is a trap at the lower end
of the syphon leg b. d is a pipe for allowing the escape of air from the lower end
of the syphon leg b' at the time when the syphon is started into action as described
in our former Patent the form of the parts only being somewhat modified.
When no trap is provided the air escape pipe d is not required.
The pipes a and d may as shewn in the drawing be led out to the open air but
it is not essential to do so as no foul air or smell would at any time pass from either
of them.
The drawing also shews the way in which we make a gas tight joint between
the lower end of the longer limb of the syphon discharge and the trap or
soil discharge pipe. The limb b¹ enters a socket on the top of the trap or soil
pipe-an india rubber ring e surrounds the limb and rests on the top of the
socket. A ring with descending flange around its exterior also surrounds the
The flange
limb and is drawn downwards on to the india rubber ring by bolts g.
keeps the india rubber ring from expanding outwardly and consequently the india
rubber is forcibly pressed inwards agaiust the limb b' and a tight joint is secured.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
1. In water closets the combination of a basin, a syphon discharge leading from
the basin, a water supply pipe with side branch leading to the rim of the basin, an
upward bend in the water supply pipe below this branch and then a downward bend
leading into the top of the longer limb of the syphon discharge and an air pipe
leading upwards from the top of this bend substantially as described.
2. The construction of a water closet with a syphon discharge in one piece with
the basin and with a water supply pipe with side branch entering a socket on the
upper part of the basin-an upward bend in the pipe below the branch and then a
downward bend entering a socket on the top of the longer limb of the syphon
discharge and an open air pipe rising up from the top of this latter bend sub-
stantially as described.
3. The construction of water closets substantially as herein described and
illustrated in the drawing annexed.
Dated this 6th day of July 1893.
ÇARPMAEL & Co.,
Agents for the Applicants.