An Improved Apparatus for Testing Drains.
Year: 1889

page_text: Date of Application, 23rd Mar., 1889
Complete Specification Left, 11th June, 1889-Accepted, 3rd Aug., 1889
PROVISIONAL SPECIFICATION.
An Improved Apparatus for Testing Drains.
THOMAS KEMP 237 Cold Harbour Lane Brixton S.W. in the County of Surrey
(Builder and Decorator) do hereby declare the nature of this invention to be as
follows:-
An Improved Apparatus for Testing Drains, which is constructed of an Iron tube
turned up at end so as to pass into and under seal of trap and a small receiver for
water at top of same fitted with a valve and spindle with a loop which passes into a
chamber formed to receive a glass tube containing chemical of strong odour. This
chamber is fitted with a screw cap which admits of the glass tube being passed
through the loop of spindle. The valve being drawn up breaks the glass tube and the
whole of contents is simultaneously forced into the drain by the force of water from
the receiver and by flushing the drain trap at same time prevents any of the chemical
escaping from apparatus or drain trap. Therefore it can only escape at any defective
part as it passes through drain. The chamber is also made with a screw for breaking
the glass tube and an India rubber tube with a ball attached by which it is easily
passed through contents of any drain trap into drain. And the upper part of chamber
being fitted with a syphon the chemical is automatically forced into drain.
Dated thi 09.1 of Monch 1990
THOMAS KEMP.
COMPLETE SPECIFICATION.
An Improved Apparatus for Testing Drains.
THOMAS KEMP, Sanitary Engineer, 237 & 239 Coldharbour Lane Brixton, London
S.W. 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 consists of a cross piece made of metal (A sheet 1) having at the
lower end of cross a union (H) for a flexible tube to pass into the drain over the trap
and a small receiver (B) for water at top of cross piece fitted with a valve &
spindle (C) with a loop (E) attached which passes into the centre of cross piece to
receive a glass tube containing chemical of strong odour. This chamber is fitted
with screw caps (F) which admit of the glass tube being passed through the loop of
the spindle. The valve being drawn up breaks the glass tube and the whole of
contents is simultaneously forced into the drain by the force of water from the
receiver (B) and by flushing the drain trap at the same time prevents any of the
chemical escaping from the apparatus or drain trap therefore it can only escape at any
defective part as it passes through the drain. The chamber is also made with fan and
screw in place of valve and spindle (C sheet 2) for breaking the glass tube and an
india rubber tube attached to the upper end of the cross piece having at the end a
cup (B) to contain water the cup being raised to the level of the top of the apparatus
and a little water being poured into it it becomes a syphon and by quickly lowering
it into a pail of water the syphonage continues as long as there is any water in the
pail thus flushing the drain."
Having thus 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 :-
(1) The application of a chemical enclosed in the apparatus substantially as

page_text: (2) The action and results of a drain tester substantially as described in the
specification.
(3) The action of valve C and screw C to release the chemical simultaneously with
the flow of water substantially as described in the specification.
Dated this 11th day of June 1889.
MILTON LAURIE,
Agent.