Improvements in Water Closets.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
Improvements in Water Closets.
We, J. DUCKETT AND SON LIMITED, Sanitary Ware Works, Burnley, in the
County of Lancaster, JAMES DUCKETT, Woodleigh, Burnley aforesaid, Sanitary
Ware Manufacturers, and JOHN WHITAKER BULLOCK, 30, Accrington Road,
Burnley aforesaid, Manager, do hereby declare the nature of this invention
to be as follows:-
-
The first part of our invention relates to latrines or multiple closets with
siphonic discharge traps, and is designed to give greater efficiency in flushing,
and also simplicity in construction of these closets.
The annexed drawing (Sheet 1) shews a set of four seats embodying our im-
provements. Fig. 1 is a longitudinal section of the range of closets; Fig. 2 a
transverse section; Fig. 3 a plan; Fig. 4 a transverse section of a double trap;
and Fig. 5 an enlarged plan of air extractor F F above line G to serve the pur-
pose hereinafter described.
The basins A are provided with a flushing rim, and are made with the lower
part projecting considerably downwards to prevent matter passing from one basin
to another. The double trap B B is fixed at or near the centre of the range or
series, by which arrangement the trap does not take up room in the closet, and
the soil sooner reaches the outlet after the flush. C is the air space in the
double trap. The supply pipe D from the flushing cistern is connected to the
flushing rim in the usual manner.
In the automatic cistern E, we fix an air extractor FF, which communicates
with the air space C in the trap, as shewn in Fig. 1. In connection with this
extractor, we form an airspace K by fixing a plate on each side of the bend,
which said plates extend downward to the line G as shewn in Fig. 1. An
opening J formed in the extractor F at the top of the bend on its underside, and
therefore inclosed by the air space K.
The extractor cuts off siphonage in the basins, when the water in cistern has
descended to the level of line G and the water below line G then serves as an
after flush to the basins. The short leg H may discharge into the well of any
other suitable automatic cistern..
The folowing description will clearly explain the siphonic action of our
improved system of flushing latrines.
When the cistern E is empty, pipe or extractor F F is full of air. When the
water rises in the cistern to its 'maximum height, the head starts the main
siphon in the usual well known_manner. The water discharging from the
cistern E passing extractor at H with great velocity creates in the pipe F
and space C a vacuum, which starts the siphonage in the range of closets, the
whole of the water and excreta contained in the closet basin and pipe connections
being siphoned off through the traps B and C. After the water in the cistern
has descended below the line G, air is admitted into the airspace K, and also into

page_text: The depth of water in basin is regulated by the height of the weir in double
trap B. By this means, all the water used is applied directly' for flushing pur-
poses, and siphonic action is started and stopped at the proper times.
The second part of our invention which-relates to single closets on the siphonic
principle, will be clearly understood by reference to Sheet 2 of the accompanying
drawings, in which Fig. 6 shews a partial cross section, Fig. 7 a plan, and
Fig. 8 a longitudinal section of the closet basin and trap, constructed in accord-
ance with our invention. Our invention consists of the combination of a double
trap with the basin and air extractor for siphoning the water therefrom.
A is the basin which may be of any desired form.
B is the double trap.
C is an opening for access to the trap B.
D is the supply pipe.
1
E is a metal plate bolted to the ware for access purposes.
F is an air pipe attached to the plate D by a union joint. This pipe is con-
nected with a suitable (cistern in a similar manner and for the same purpose
described in the first part of our invention.
The self contained basin and double trap may be modified by making the said
trap in two pieces with one single trap above floor line and one below floor line.
The third part of our invention relates to improvements in slop water closets,
and has reference to the class of closet for which Letters Patent No. 3431 of 1887
were granted to the said James Duckett.
The object of our invention is to make the arrangement still more sanitary.
For this purpose, we make a channel in the dishstone, and place the outlet in
it, and as far as possible from the sink wastepipe.
In one of our arrangements, we make the said dishstone with a narrow channel
to receive the sink water. The channel has a covered side inlet near one end for
the purpose of receiving and protecting the sink waste pipe, and the outlet is
at the opposite end in a diagonal direction.
Over the outlet we fix a pair of sloping grates made to incline towards each
other. The space between the grates at the bottom is preferably about three
eighths of an inch wide; the greater part of the water enters below this point.
Our invention is shewn on Sheet 3 of the accompanying drawings. M is the
dishstone. N is the covered inlet. 0 0 the channels. P the outlet. QQ, the
sloping grates.
When a greater length of channel is required, we fix a channel block adjoining
the said dishstone, the top of which may be set level with the surface of the
yard, or it may be in accordance with the arrangement for which Letters Patent
were granted to the said James Duckett and one Alfred Duckett No. 663 of 1893.
Dated this 10th day of September 1897.

page_text: Ware Manufacturers, and JOHN WHITAKER BULLOCK, 30, Accrington Road,
Burnley, aforesaid Manager, 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:-
The first part of our invention relates to latrines or multiple closets with
siphonic discharge traps, and is designed to give greater efficiency in flushing,
and also simplicity in construction of these closets.
Referring to the drawings accompanying our Provisional Specification,
Sheet 1 shews a set of four seats embodying our improvements. Fig. 1 is a
longitudinal section of the range of closets; Fig. 2 a transverse section; Fig. 3
a plan Fig. 4 a transverse section of a double trap; and Fig. 5 an enlarged plan
of air extractor FF above line G to serve the purpose hereinafter described.
The basins A are provided with a flushing rim, and are made with the lower part
projecting considerably downwards to prevent matter from passing from one basin
to another. The double trap B B is fixed at or near the centre of the range or
series, by which arrangement the trap does not take up room in the closet, and
the soil sooner reaches the outlet after the flush. C is the air space in the
double trap. The supply pipe D from the flushing cistern is connected to the
flushing rim in the usual manner.
In the automatic cistern E, we fix an air extractor FF, which communicates
with the air space C in the trap, as shewn in Fig. 1. In connection with this
extractor, we form an air space K for fixing a plate on each side of the bend,
which said plates extend downwards to the line G, as shewn in Fig. 1. An
opening J is formed in the extractor Fat the top of the bend on its underside, and
therefore enclosed by the air space K.
The extractor cuts off the siphonage in the basins, when the water in cistern has
descended to the level of line G, and the water below line G then serves as an
after flush to the basins. The short leg H may discharge into the well of any
other suitable automatic cistern.
The folowing description will clearly explain the siphonic action of our
improved system of flushing latrines.
When the cistern E is empty, pipe or extractor F F is full or air. When the
water rises in the cistern to its maximum height, the head starts the main
siphon in the usual well known manner. The water discharging from the
cistern E passes extractor at H with great velocity, and creates in the pipe F
and space C a vacuum, which starts the siphonage in the range of closets, the
whole of the water and excreta contained in the closet basins and pipe connections
being siphoned off through the traps BC. After the water in the cistern
has descended below the said line G. air is admitted into the air space K, and also
into the extractor F through opening J, instantly stopping siphonage in the
closets, and the remainder of water in cistern E continues to flow, and re-charge
the basins. It is manifest that this arrangement of air pipe will prevent the
closets being siphoned, when a bucket of water is thrown into the closet basin.
The depth of water in basin is regulated by the height of the weir in double
trap B. By this means all the water used is applied directly for flushing pur-
poses; and siphonic action is started and stopped at the proper times.
The next part of our invention relates to improvements in slop water closets,
and has reference to the class of closet for which Letters Patent No. 3431 of 1887
were granted to the said James Duckett.
The object of this part of our invention is to make the arrangement still more
sanitary.
For this purpose, we make a channel in the dishstone and place the outlet in
it, and as far as possible from the sink waste pipe.
In one of our arrangements, we make the said dishstone with a narrow channel
to receive the sink water. The channel has a covered side inlet near one end for
the purpose of receiving and protecting the sink waste pipe, and the outlet is

page_text: at the opposite end in a diagonal direction. Over the outlet, we fix a pair of
sloping grates made to incline towards each other. The space between the grates
at the bottom is preferably about three eights of an inch wide; the greater part
of the water entering below this point.
Our invention is shewn on Sheet 3 of the said drawings. M is the
dishstone. N is the covered inlet. 00 the channels. P the outlet. Q Q the
sloping grates. When a greater length of channel is required, we fix a channel
block adjoining the said dishstone, the top of which may be set level with the
surface of the yard, or it may be in accordance with the arrangement for which
Letters Patent were granted to the said James Duckett and one Alfred Duckett
No. 663 of 1893.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is:-
1. Improved construction and arrangement of siphonic flushing cisterns, sub-
stantially as described and shewn in Fig. 1.
:
2. The combination of our improved siphonic automatic cistern with a range of
closets, adapted and arranged with a central double trap B B in connection with
air extractor F for siphoning the basins, substantially as and for the purpose
described and shewn in Figs. 1, 2, 3, 4 and 5.
3. Jn dishstones to receive slop water, the combination and arrangement of a
shield N with channels 00 and sloping grates QQ, substantially as described
and shewn in Figs. 9, 10 and 11.
Dated thin 10th 1
1000
RICHMOND & Co.,
Chartered Patent Agents, 12, Standish Street, Burnley.
RICHMOND & Co.,
Chartered Patent Agents, 12, Standish Street, Burnley.