Improvements in Water Closet Basins and the Mode of Flushing them.
Year: 1886

page_text: Date of Application, 15th June, 1886
Complete Left, 15th Mar., 1887.
Complete Accepted, 10th May, 1887
Improvements in Water Closet Basins and the Mode of
Flushing them.
THOMAS WILLIAM, TWYFORD, Sanitary Potter, Bath Street Works, Hanley, Stafford-
shire, do hereby declare the nature of my invention for IMPROVEMENTS IN WATER
CLOSET BASINS AND THE MODE OF FLUSHING THEM, to be as follows:-
The object of my invention is. to construct water closet basins with an improved.
appliance for flushing or washing the soil out of the basin, this I do in configuration
of said basin. In constructing the rim of my closet basin I form a canal, by means of
which I am able to wash the whole of the inside surface of the basin, and supply water
for an afterflush. The object of the said afterflush being to insure the requisite amount
of water being left at the bottom of the closet basin to receive the next soil. My
invention is constructed and operated as follows:-
The body of the basin is generally of a circular or oval form, one part of which at a
short distance from the top I swell out so as to form a water supply branch, this is
done in the configuration of the basin, and by continuing the top part to the ordinary
outline I form a fan to spread the water issuing out of the said supply branch. Above
the said fan and together with the rim of basin I form a canal which encircles the said
basin, and where it passes the supply branch I make an orifice in order that the water
issuing from the supply branch, coming in contact with the fan, will cause a portion
of the water to flow round the said canal, which becoming overcharged, overflows and
washes the whole of the inner surface of the closet basin; this canal also forms an
auxiliary chamber, and when the flush is completed will slowly empty itself into the
closet basin, forming an aftorflush.
T
1000

page_text: Flushing them.
I, THOMAS WILLIAM TWYFORD of Hanley in the County of Stafford, Manufacturing
Potter, 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 object of my invention is two fold; first, to improve the mode of flushing, and
secondly, an improved means for holding back a portion of the flush, to form an after
service, or an after flush, which latter is an improvement upon Letters Patent granted
to Job Deeley on the 31st day of October 1885, and numbered 13,130.
In constructing a basin according to my invention, I proceed as follows-
I take an ordinary basin provided with the usual main outlet, leading to the trap,
the soil pipe outlet, and the ventilator outlet, and also the neck or supply branch,
through which water is supplied to the basin, and which supply branch is preferably
situated at a point opposite to the main outlet; and this main outlet is also in front of
an open bottomed partition or wall, commonly called a spreader, against the inside
of which, the incoming water impinges, and is diverted fish tail form, outwardly.
The top of the basin is formed into a hollow rim, having within it, an annular
channel or canal, closed at top, and open on one side, and on that side, leading to the
inside of the basin; and in front of the open side aforesaid, is a continuous downwardly
directed lip, or hanging flange, and it is between this lip or flange, and the inside
walls of the channel, that water flows and washes the sides, and the inside surface of
the basin, on water overflowing, or passing therefrom.
The water left within the channel or canal after the overflowing as aforesaid, serves
as an after flush, or an after service, and flows through a hole or holes into the basin,
after the main flush has passed away.
By thus constructing the rim as aforesaid, the means for flushing also constitute a
means for holding back a portion of water, required to be left at the bottom of the
basin.
The body of the basin, is generally of a circular or of an oval figure, and with the
water supply branch, made into the form of a neck, disposed a little below the rim.
I will now proceed to describe with reference to the accompanying drawing, the
manner in which the same is to be performed.
Figure 1 is a vertical section of a water closet basin provided with improvements
made according to my invention. Figure 2 is a plan of the same, partly in horizontal
section, showing the auxiliary annular channel or trough, wherein the after flush water
is stored, and also the outlets from the said trough, through which the water slowly
flows. Figure 3 is a section on the dotted lines A B figure 1, and looking upwards,
or from the underside of the spreader. This view shows more clearly the position and
extent of the spreader, with respect to the inlet, of the water supply branch.
The same letters of reference indicate corresponding parts in all the figures.

page_text: a is the body of a wash out basin, and is its rim which is hollow, or has formed
within it, an annular channel or trough c, which forms an auxiliary chamber, wherein
the after flush supply is for a short time stored, and subsequently allowed to flow
therefrom, through holes e² opposite or nearly opposite the outlet of the water
supply branch d; it is also through these holes, that the channel or trough is fed or
supplied, both for the after service, and for washing the whole of the inside surface of
the basin.
The channel of the hollow rim aforesaid, is open at its inside edge at c³, and which
said opening has in front of it, an enclosing and overhanging depending flange or lip e,
and it is between the inside of this lip, and the wall leading from the open side, that
water passes or overflows, on the annular hollow portion of the rim becoming fully
charged. Thus, water in entering the basin by way of the water supply branch,
partially passes to the basin, through the inlet and partially through the passage c',
by way of the passage c, leading into the channel c. The near side c of the channel
of the said basin, is at a higher elevation than the off-side d; so that the water left
in the channel after the main flush has passed away, slowly flows therefrom, through
a hole or holes e into the bottom of the basin, so as to make the necessary seal to
the soil subsequently deposited therein.
The basin entrance of the water supply branch, has before it, a spreader or fan g,
for spreading or diverting outwardly the flush, so as to sweep all soil and matters
from the bottom of the basin, while the water passing through the hollow rim, washes
the whole of the sides thereof. his the main outlet, i is the trap, ; is the soil pipe
outlet, and is the ventilator of the two latter.
Although I have described an open sided after-flush channel or trough, yet an
enclosed channel or trough may be used, with an air hole at one part thereof.
Having now particularly described and ascertained the nature of my said invention,
and in what manner the same is to be performed, I declare that what I claim is :-
First. Combining and making in one piece with a water closet basin or pan, an
after-flush chamber or service in the form of an annular channel or trough in the
inside of the rim; and which said channel or trough is fed, and water allowed to
pass therefrom, through a hole or holes in front of the water supply branch, substantially
as described and set forth.
Secondly Combining and making in one piece with a water closet basin or pan, a
combined after service and flusher; consisting of a hollow rim b, channel or trough c,
inlet or inlets c², continuous side outlet e³, passage e¹, overhanging lip or flange e, and
spreader g, substantially as described and set forth.
Thirdly. The combination with the water supply branch d, of the spreader g, inlet f
rin b with its channel c, and inlet or inlets c² and hanging lip or flange e, substantially
as described and set forth.