Improved Means for Testing and Disinfecting Drains.
Year: 1896

page_text: Date of Application, 11th Apr., 1896
Complete Specification Left, 15th Dec., 1896-Accepted, 6th Feb., 1897
Improved Means for Testing and Disinfecting Drains.
1, CHARLES THOMAS KINGZETT, F.I.C., F.C.S. of Elmstead Knoll, Chislehurst
in the County of Kent, Professional Chemist, do hereby declare the nature of
this invention to be as follows:-
This invention relates to what are known as "drain testers" 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.
I employ two cylinders one fitting loosely within the other and each having one
closed end.
The larger cylinder preferably at or near its top or open end is attached to the
end of a string which also has fixed to it, at intervals in the order named, a small
wad or plug the smaller cylinder, and lastly a larger wad or plug.
The material is placed in the smaller cylinder which is closed with the smaller
wad and inserted into the larger cylinder which in its turn is closed by the larger
wad, the length of string between this and the larger cylinder being placed in the
latter.
The action of the apparatus is as follows:-
The free end of the string is first secured or made fast and the tester is then
thrown or lowered into the pan and washed past the trap hy a flush of water.
When it has travelled a certain distance according to the length of the string the
large wad is pulled out, then the smaller cylinder is pulled out of the larger one and
lastly the wad is pulled out of the smaller cylinder and its contents escape. After
a time the tester should be pulled out by the string to see that it has acted
properly.
If the tester is carried about or stored it is convenient to provide an airtight cap
for the larger cylinder.
D
Improved Means for Testing and Disinfecting Drains.
I, CHARLES THOMAS KINGZETT, F.I.C., F.C.S., of Elmstead Knoll, Chislehurst,
in the County of Kent, Professional Chemist, 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 what are known as "drain testers" 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.

page_text: I employ two cylinders one fitting loosely within the other and each having one
closed end.
Figure 1 is a longitudinal section of the apparatus when closed and Figure 2 a
similar view when open.
The larger cylinder A preferably at or near its top or open end is attached to
the end of a string which also has fixed to it, at intervals in the order named, a
small wad or plug B the smaller cylinder C and lastly a larger wad or plug D.
The material E is placed in the smaller cylinder which is closed with the smaller
wad and inserted into the larger cylinder which in its turn is closed by the larger
wad, the length of string between this and the larger cylinder being contained in
the latter. The rest of the string may also be coiled up and placed above the wad
or plug in the larger cylinder.
The action of the apparatus is as follows:-
The free end of the string is first secured or made fast and the tester is thrown
into the pan and washed past the trap by a flush of water. When it has travelled
a certain distance according to the length of the string the large wad is pulled out,
then the smaller cylinder is pulled out of the larger one and lastly the wad is pulled
out of the smaller cylinder and its contents escape. After a time the tester should
be pulled out by the string to see that it has acted properly.
If the tester is carried about it is convenient to provide an airtight cap for the
larger cylinder.
This air-tight cap may be for example, an ordinary tin-cap F as shown, the
external junction being rendered air-tight by means of rubber sheeting of an adhesive
character wound round same for that purpose.
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 :-
1. The combination of two cylinders one fitting within the other and each having
one end closed substantially as described.
2. Drain tester substantially as described and shown in the drawings.
Dated this 15th day of December 1906
C. T. KINGZETT.