Improvements in and relating to Disinfecting Apparatus for Use in connection with Drains, Gullies, Sinks, and the like.
Year: 1895

page_text: Date of Application, 18th Feb., 1895-Accepted, 23rd Mar., 1895
Improvements in and relating to Disinfecting Apparatus for Use in
connection with Drains, Gullies, Sinks, and the like.
I FREDERICK LETTICE of 33 Rodney Street, Pentonville N. in the County of
London, Plumber, 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 improvements in apparatus for containing and dis-
tributing disinfectants and has for its object to provide means whereby waste of
such disinfectant is prevented whilst its use at necessary intervals is ensured.
For this purpose I so arrange the vessel containing the disinfectant that when
waste water, slops, or the like is or are poured down the gully or sink to which
the said vessel is connected, a certain proportion of such waste water; slops or the
like will enter the said vessel and displace therefrom an equivalent proportion of
disinfectant. I furnish the said vessel with an outlet and an inlet or inlets, and I
provide means for regulating the quantity of waste water that enters the disinfecting
vessel (hereinafter called the vessel) and I guard. against the entrance of any
foreign matter into such inlet or inlets by fitting the mouth or mouths thereof at
such an angle that the waste water has a rapid flow over the orifice or orifices
of the said inlet or inlets.
To enable my invention to be fully understood I will describe the same by
reference to the annexed drawings in which :-
Figure 1 shows the vessel A in sectional elevation having the conical cover B
attached to the grid or grating C of an ordinary gully.
Figure 2. represents a plan view of Fig. 1.
Figure 3 shows a similar vessel having the cover B provided with an inclined
trough or channel k, into which the inlet pipe d is fitted.
Figure 4 is a plan view of Fig. 3 with the grid or grating removed.
Figure 5 illustrates the vessel A having the inlet pipe d provided with a conical
perforated cap 1, and adapted for use in an ordinary sink.
Figure 6 is an enlarged view of the conical.cap 1, and
Figure 7 is a plan view of the same.
Similar letters of reference indicate corresponding parts in the several figures.
In carrying my invention into effect I provide the vessel A Figs. 1, 3 & 5
(which may be of cast iron earthenware or of other material suitable for the
particular disinfectant used). with an overflow pipe a of sufficient length to reach
to within a short distance of the top of the said, vessel, and in cases where the
disinfectant is of greater density than the liquid used to. displace it, such for
instance. as carbolic acid, I preferably place over the said overflow pipe a second
pipe b, Fig. 1, of larger diameter and of greater length than the overflow pipe
and I bevel the lower end of such second pipe in order to form an opening-c
for the passage of disinfectant, which upon the entrance of waste water into
the vessel A, will pass up the annular space between the two pipes and thence
down the overflow pipe a Fig. 1. To the vessel A Fig. 1, I fit a cover B, having
an inlet pipe d attached thereto the mouth e of which I make slightly tapered
in order that the porous material: with which, it is provided may be compressed
or loosened when necessary in order to regulate. the supply of waste water
entering the vessel: A, without permitting the said porous material, which may
be of horsehair or other suitable material to pass downwards into the said inlet

page_text: pipe as a further precaution against this 1 sometimes fit to the lower part of
the mouth piece a collar or perforated disc g Figs. 1 & 3.
To prevent the clogging of the porous material with which the mouth piece
or mouth pieces of the inlet pipe or inlet pipes is or are provided I preferably
make the cover of the vessel A Fig. 1 in the form of a cone, to the angle and
curve of which the one mouth piece e (in this instance) is adapted. I wish it
however to be understood that I do not confine myself to the particular number
of inlets that shall be provided for the admission of waste water into the
vessel A or to the exact position in which the said inlet or inlets shall be placed,
as without departing from the principle of this invention both the number. and
position may be varied, it is however essential for the successful carrying out
of this invention that the inlet or inlets be so placed and arranged that a
- sufficiently rapid flow of the waste water over the orifice or orifices of such
inlet or inlets shall be secured as will prevent the possibility of obstruction by
solid matter. For the purpose of securing the vessel A Figs. 1 & 3, in position
beneath the grating C, 1 cast upon, or fit to, the said vessel the short lugs h, h 1,
h2, h3 Figs. 1, 3 & 4 and I suspend the same in the framing D, Figs. 1, 3 & 4
having the bent arms i, i1, 2, 3 to which is attached the ring j.
In Fig. 3, I have shown a similar vessel A, to that illustrated in Fig. 1, the
cover B is however in this case detached from the grid or grating C and is provided
with an inclined trough or channel k into which the mouth piece e of the inlet
pipe d is fitted. In order that a portion of whatever liquid may be poured on to
the grating C shall pass down the said trough or channel and over the mouth
piece e, I make the upper part of the said cover in the form of an open cylinder B 1,
and I provide two or more openings m, m 1 in the grating C immediately above the
said cylinder, as a precaution against liquid passing through the grating without a
portion thereof entering the trough k, 1 give to the grating a dip or curve towards
the centre and I make the outer holes of the said grating of smaller area.
In Figure 5 I have illustrated a modification of my invention in conjunction with
a trap and casing adapted for use in an ordinary sink or untrapped gully. The
vessel A is here shown arranged for a disinfectant of less density than the liquid in
use to displace such disinfectant, that is to say, the secondary pipe b, which in Fig. 1
is shown surrounding the overflow pipe a is removed therefrom, and is placed
around the inlet pipe d, so that when liquid enters the vessel A, it causes the lighter
disinfectant to rise and overflow through the outlet pipe a. In this modification
I provide the cover B with an inlet pipe d, to the upper part of which I fit a collar n
having a screw thread around its outer circumference, to this collar is fitted the
perforated conical cap and the perforated disc p, by this means having inserted the
porous material f Fig. 5 the inlet of liquid can be regulated by screwing down or
unscrewing the said perforated cap l.
In the arrangement illustrated in Fig. 5 I provide an outer vessel or casing G,
having an outlet at the bottom thereof, and I so arrange this vessel that an.
airtight joint can be made between the flange r thereof and the flanges of the inner
vessel or casing E. I attach to the lower part of the vessel E a trap F and I
provide the said vessel E with two or more brackets t, t 1 so that the rim u of the
vessel A, which I provide for the purpose, may rest thereon and so secure the said
vessel in a central position. In cases where it is desired to use a solid crystalline
disinfectant 1 preferably suspend the crystals upon a perforated plate or grating
which I attach to the vessel A at a convenient distance from the bottom thereof.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is
I. The improved disinfecting apparatus consisting of the vessel A having an
overflow pipe a surrounded by the pipe b, the conical cover B, the inlet pipe d and
the mouth piece e containing the porous material f, arranged substantially as and
for the purposes described and illustrated in Fig. 1.

page_text: II. The combination with the said disinfecting apparatus Fig. 1, of the grating C
and framework D Figs. 1 and 2.
III. The combination with the said disinfecting apparatus Fig. 1 of the
grating C Figs. 1 & 2 and the outer casing G, the inner casing E, and the trap F
Fig 5.
IV. The disinfecting apparatus consisting of the vessel A having the overflow
pipe a and the cover B having the trough or channel k, the inlet pipe d, and the
mouth piece e containing the porous material f arranged substantially as described
and illustrated in Figures 3 and 4.
V. The combination with the said disinfecting apparatus Figs. 3 & 4 of the
grating C and framework D Figs. 3 & 4.
VI. The combination with the said disinfecting apparatus Figs. 3 & 4 of the
grating C Fig. 3 the outer casing G the inner casing E and the trap F Fig. 5.
VII. The disinfecting apparatus consisting of the vessel A having the overflow
pipe a and the cover B having the inlet pipe d, the pipe band the conical perforated
cap / containing the porous materialfarranged substantially as and for the purposes
described and illustrated in Figs. 5, 6 & 7.
VIII. The combination with the said disinfecting apparatus Figs. 5, 6 & 7 of
the grating C Fig. 5 and the framework D Figs. 3 & 4.
IX. The combination with the said disinfecting apparatus Figs. 5, 6 & 7 of
the grating C, the outer casing G, the inner casing E and the trap F arranged
substantially as and for the purposes described.
X. In an apparatus for containing and distributing a disinfectant the
arrangements for displacing such disinfectant substantially as described and
illustrated by reference to the accompanying drawings.
Dated this 18th day of February 1895.
FREDERICK LETTICE.