Improvements in and relating to Water Closets and Flushing Tanks therefor.
Year: 1889

page_text: Date of Application, 22nd May, 1889-Accepted, 3rd Aug., 1889
VAMI LEIE DE DOITICATION.
Improvements in and relating to Water Closets and Flushing Tanks
therefor.
We, JAMES DUCKETT and ALFRED DUCKETT both of Mitre Brick Works, Burnley,
in the County of Lancaster, Brick and Sanitary Pipe Manufacturers; 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 of Improvements relates to the construction of waste-water closets
and flushing tanks therefor.
And in order that our invention may be properly understood, and readily carried
into practical effect, we have hereunto attached the accompanying sheet of drawings,
marked with figures and letters of reference. Fig. 1 is an elevation in section of a
water closet and flushing tank, constructed in accordance with our invention, A is the
basin and B the trap of the closet, combined in one piece of earthenware. This basin
is similar to a small weir, and is enclosed within the circular rim A¹ having socket A³,
into which projects the lower end of pan D.
This pan slopes inwards in front from its socket, and is oblong to its base, which is
circular. An extension pipe C, which is oblong in section, is mounted in the socket of
the pan D, which is also provided with socket H for the insertion of drain pipe E,
connecting the closet to the flushing tank F, arranged on the siphon principle. The
waste-water from the slopstone G is conveyed to the flushing tank through the sink
pipe G¹.
The waste water, entering and rising in the flushing tank F, ascends the annular
space between the circular walls of cover I and the long leg J of the siphon, until it
attains such a level as to close the annular space between the vent pipe K and cover K¹,
when the further ingress of air is shut off from the siphon. The water then
commences to flow over into the vertical space within the long leg of the siphon, and,
dropping upon the confined air within, causes its displacement and discharge through
the water seal in trap L, until a partial vacuum is produced, sufficient to cause siphonic
effect, when the water is discharged from the tank with considerable force and volume
over the basin or weir A of the closet. The water contained in the basin or weir A,
together with any faecal matter contained therein is swept by the flush into the trap B,
and from thence to the main drain.
To arrest solid matters from being carried into the flushing tank F, and to prevent
the overflow of sink water from the tank into the yard, a square or other suitable grate m
is placed upon the lugs m¹ fixed to the corners or angles of tank F, and of sufficient
depth that the sides of the tank may project above the surface of the grate. This grate
is secured to the lugs by bolts to prevent children from interfering with the interior of
the tank.
The flushing tank F may be raised, if desired, above the level of the yard flags, and
placed within a recess in the scullery or. house wall, to increase the degree of inclina-
tion of the sanitary pipes connecting the flushing tank with the closet, in cases where
the main drain is insufficiently deep.
The several parts composing the annular siphon may be constructed of earthenware,
or, if desired, the covers may be of metal. We, however, prefer to construct the
siphon pipe J and vent pipe K together with the tank F and lugs or brackets m¹ of
one piece of earthenware, so as to make them air and water tight and more durable
and satisfactory than when made in separate parts.
In substitution of the annular siphon, a tilting tank may be used as the Aushing
medium similar to that described in the patent granted to us bearing date the 7th day
of March 1887 and numbered 3431. The box containing the tilting tank is preferably
arranged for a grate, which is fixed and supported in a similar manner to that described
In relation to tank F.

page_text: In the arrangement represented in Fig. 2, we construct a flat shelf or platform R,
raised to a position immediately below the water line. The water covers the platform
or shelf R and the mouth of the trap B, which is not so in the foregoing arrangement,
as the water in the basin is of a higher level than that in the trap. It will be seen
by referring to the drawings, that only a shallow body of water covers the platform or
shelf R so as to be readily swept or carried by the flush from the platform or shelf
together with any other matter it may contain, over the mouth of the trap B, and
through it to the main drain.
The inlet to the pan D of the closet may be in front as in Fig. 3 or at right
angles as in Fig. 4. In the latter case the water is compelled to take the curvature
of the pan D, and cleanse from the sloping part thereof D' foul matter which may
have a tendancy to adhere.
To make a good, reliable and watertight joint, similar to that known as Stamfords
joint, between the flushing tank F and the socket of the trap L, and between the
pan D and the socket in which it fits, we preferably line such parts with a mixture
of brimstone and pitch. This joint will also render the traps L and B adjustable,
and capable of being turned round to suit their respective drains.
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 waste water closets, enclosing the basin and mouth of the trap within a
shallow circular wall or rim, such basin, rim and trap being in one piece of carthen-
ware, substantially as described and illustrated.
2. In waste water closets, the taper pan D provided with inlet junction H, and
arranged to fit the circular socket of the rim A¹, upon which the basin and trap
may turn bodily in any direction, to suit the main drain.
3. In waste water closets, the platform or shelf A, arranged substantially as
described and illustrated in Fig. 2.
4. The construction in earthenware and combination of the parts of the annular
flushing siphon and tank substantially as described and illustrated.
5. Fixing and supporting a grate in the flushing tank F, or a box containing a
tipping tank, substantially as described for the purpose.
6. Raising the annular siphon flushing tank F, or the box containing the tipping
tank, to a position above the yard flags, and placing the same within a recess
formed in the scullery or house wall, substantially as described.
7. The arrangement of the inlet in the pan, substantially as described in reference
to Fig. 4.
8. The general arrangement and combination of the parts of a waste water closet
and the flushing tank or siphon, substantially as described and illustrated.
Dated this 20th day of May 1889.
THUS. RICHMOND,
Agent for the Applicant.