Improvements in Self Acting Flushing Apparatus.
Year: 1891

page_text: Date of Application, 7th Jan., 1891-Accepted, 25th Apr., 1891
COMPLETE SPECIFICATION.
Improvements in Self Acting Flushing Apparatus.
We, JAMES DUCKETT and ALFRED DUCKETT, 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:-
The first part of our invention relates to improvements in a self-acting flushing
device, applicable for flushing water closets, sewers and drains, and consists of a
cistern preferably of earthenware, in which is suspended a tilting vessel attached by
suitable connections to a valve.
Water may be supplied to the cistern in the usual manner, and when it attains a
certain level in the cistern, it flows into the tilting vessel, which, when full, will
overbalance itself so as to raise the valve from its seat, and allow the water to
suddenly escape from the cistern.
To prevent the sudden return of the tilting vessel and the valve to their original
position, the water on leaving the tilting vessel is made to percolate gradually
through one or more small orifices, so as to keep the tilting vessel depressed a
sufficient time, to admit of the effectual escape of the water from the cistern, before
the valve regains its seat.
We would observe that at the rear of the tilting vessel an air chamber is
formed, so as to impart greater buoyancy to the tilting vessel when raised by the
water.
The invention further relates to annular siphons, and consists in forming at the
head of the siphon two horizontal channels or spouts, which extend considerably
towards the centre of the siphon. The water, on reaching the head, then flows
along the channels or spouts and unites together in one column or stream, which,
falling, carries the air within the siphon along with it through the water seal below,
until a proper siphonic effect is produced.
The next part of our invention relates to further improvements on an invention,
for which Letters Patent was granted to the said James Duckett, dated the 7th
day of March 1887, and numbered 3431. In the present arrangement and com-
bination of the parts, we place the sink trap near the house or scullery wall, so as
to receive from the sink, waste or slop-water, which by preference is then discharged
through an extended arm or outlet of the said trap, direct into the tipping tank or
tipper. It will therefore be obvious that by the present arrangement, any
obstruction that might possibly exist in the flush of water from the tipper having
to pass through the yard trap, as described in the Specification of the Patent above
referred to, will be obviated. The yard trap may be provided with a dish-brick and
grid in the ordinary way; and the box containing the tipper may have a suitable
covering or flag.
The invention further relates to an improved combination and arrangement of
the parts of a waste water closet, in which the tipping tank or tipper and the closet
trap are respectively placed one on each side of the closet basin; the closet seat
forming a covering for both.
And in order that our invention may be properly understood and readily carried
into practical effect, we have hereunto attached the accompanying sheets of drawings,
marked with figures and letters of reference.
Fig. 1 is a sectional elevation of a flushing arrangement, provided with tilting
tank and valve details in accordance with our invention.
Fig. 2 is a plan and Fig. 3 a sectional elevation of the long leg of the siphon,
showing the position of the channels or spouts.

page_text: In Fig. 1, A. is the cistern, on which is situated tilting vessel B, provided with
air chamber C, supported in bearings on the bracket D, fixed to the side of cistern A.
The tilting vessel is connected by rod E to the valve F, which is held in its place
by steady pin G, moving in a hole in the cross piece H immediately below the
valve seat I. When the water, which may be received in driblets in the cistern,
accumulates and reaches the top of the tilting vessel B, it then fills the chamber or
space J, which then becomes the heavier side, causing it to tilt, as shown in dotted
lines, so as to raise the valve F from the valve seating I, to admit of the sudden
escape or flush of water from the cistern A. This is effected during the percolation
of the water from the space J through the small orifice K.
The tilting vessel now returns and regains its original position against the stop
piece or bumper L, at which time the valve F regains its seating I.
The part of our invention relating to annular siphons is represented in Figs. 2
and 3, and consists in forming horizontal channels M and N at the head of the
siphon, in such a manner, that the two streams will converge in one at the centre
of the head, whereby a more effectual displacement of air is effected within the
siphon.
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. The arrangement and combination of parts of a flushing device, substantially
as described, and illustrated in Fig. 1.
2. In the construction of annular siphons, forming horizontal channels or spouts,
substantially as and for the purpose specified.
3. The arrangement and combination of a yard trap and tilting tank, situated at
the commencement of the yard drain, through which the water is discharged to
flush the closet, substantially as described.
Dated this 5th day of January 1891.
THOS. RICHMOND,
Agent.