Improved Means for Testing and Disinfecting Drains.
Year: 1896

page_text: Date of Application, 8th Dec., 1896
Complete Specification Left 7th Sent 1807 Mocanted
20th Out 1005
PROVISIONAL SPECIFICATION.
Improved Means for Testing and Disinfecting Drains.
I, CHARLES THOMAS KINGZETT, F.1.C., of Elmstead Knoll, Chislehurst, in the
County of Kent, Chemical Manufacturer, do hereby declare the nature of this
invention to be as follows:-
This invention relates to an improved form of drain-tester consisting of a case
(containing some material, which emits smell or smoke upon mere exposure, or
upon being wetted; or it may be a disinfectant) which is flushed past the trap
and then opens either automatically or by the action of running water.
In carrying out my invention I take two vessels preferably of a cylindrical
shape made of thin metal or any other suitable material closed at one end and
open at the other; and of such a size that the one fits easily into the other. I
then tie one or more bands of rubber sheeting or other elastic material over the
open end of the larger cylinder and fasten the ends firmly to the exterior side or
end of the said cylinder. I next fill the smaller cylinder with my chemical or
disinfectant material and insert it into the larger cylinder with the open end
uppermost (thus pressing down the rubber bands and bringing them into a state
of tension) after which I close the outer cylinder with a cap lined with rubber
inside and bind the whole round with string to keep the cap secure. The inner
cylinder and the whole appliance is thus made air-tight since its open end is
kept pressed against the rubber lining of the outside cap by the tension of the
rubber bands.
The mode of action of this tester is as follows:
The free end of the string which is wound round the appliance as above described
is made fast and the drain tester is flushed through the trap. As the tester is
carried along the drain pipe the string uncoils, and when it is all unwound, the
tension of the rubber bands forces the smaller cylinder out of the larger, and the
chemical or disinfectant is upset into the drain.
Dated this 8th day of December 1896.
CARPMAEL & Co.,
Agents for the Applicant.

page_text: 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 an improved form of drain-tester consisting of a case
(containing some material, which emits smell or smoke upon mere exposure, or
upon being wetted; or it may be a disinfectant,) which is flushed past the trap
and then opens either automatically or by the action of running water.
Figure 1 is an outside view of the completed apparatus. Figure 2 is a longitu-
dinal section, Figure 3 a transverse section and Figures 4, 5 and 6 longitudinal
sections of the parts.
In carrying out my invention I take two vessels a and b preferably of a
cylindrical shape made of thin metal or
or any other suitable material
closed at one end and open at the other, and of such a size that
the one fits easily into the other. I then tie one or more bands c
of rubber sheeting or other elastic material over the open end of
the larger cylinder a and fasten the ends firmly to the exterior side or end of the
said cylinder. I next fill the smaller cylinder 6 with my chemical or disinfectant
material and insert it into the larger cylinder a with the open end uppermost
(thus pressing down the rubber bands c and bringing them into a state of tension).
after which I close the outer cylinder with a cap d lined with rubber d' inside
and bind the whole round with string e to keep the cap secure the string being
held by a seal or otherwise. The inner cylinder b and the whole appliance is thus
made air-tight since its open end is kept pressed against the rubber lining of
the outside cap d by the tension of the rubber bands c.
The mode of action of this tester is as follows:-
The free end of the string e which is wound round the appliance as above described
is made fast and the drain tester is flushed through the trap. As the tester is
carried along the drain pipe the string uncoils, and when it is all unwound, the
tension of the rubber bands a forces the smaller cylinder bout of the larger, and
the chemical or disinfectant is upset into the drain. The rubber bands c may
be replaced by a metallic spring as shown at Figure 7.
Having now particularly described and ascertained the nature of my said in-
vention and in what manner the same is to be performed, I declare that what I
claim is :-
1. The combination of an outer case, elastic bands across its mouth and an
inner case substantially as described.
2. The combination of an outer case an inner case a spring tending to separate
them and a cover closing both the outer and the inner case substantially as
described.
3. Means for testing and disinfecting drains substantially as described and
shown in the drawings.