An Improved Apparatus for Testing Drains and Soil-pipes with Chemicals.
Year: 1898

page_text: Date of Application, 16th May, 1898
Complete Specification Left, 7th Dec., 1898-Accepted, 21st Jan., 1899
PROVISIONAL SPECIFICATION.
An Improved Apparatus for Testing Drains and Soil-pipes with
Chemicals.
THOMAS KEMP, 237, Cold Harbour Lane, Brixton, S.W., Sanitary Engineer, do
hereby declare the nature of this invention to be as follows:-
This invention consists of a short glass or metal tube open at one or both ends
into which a chemical of strong odour is placed. To seal up the contents a strip of
sheet india rubber is stretched from end to end and over the open ends of the tube,
and bound round with string, forms an airtight cover, continuing the binding of the
string the required length, the tester is complete. To pass the tester into drain
secure end of string lower tester into w.c. or gully trap wash it through the trap into
drain. The tester will then roll off the string release the covers and discharge the
contents of tube, disclosing the defects by the odour oozing through unsound joints.
The string with india rubber attached can be withdrawn.
Lauth of M 1800
An Improved Apparatus for Testing Drains and Soil-pipes with
Chemicals.
THOMAS KEMP, 237, Cold Harbour Lane, Brixton, S.W., Sanitary Engineer, 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 short impervious tube open at one or both ends into
which a chemical of strong odour is placed and hermetically sealed by stretching a
strip of sheet india rubber from end to end and over the open end or ends of the
tube, and binding a string tightly over the rubber round the body of the tube (as
shown in drawing Fig. 1) or by attaching a strip of sheet india rubber to two metal
caps fitted with rubber seating and stretching the strip of india rubber attached to
the caps from end to end of the tube and placing the caps over the open ends of the
tube then by placing a band of paper or linen tape length way of the tube and over
the caps with the ends of same over lapping (as shown in drawing Fig. 2) and by
binding a string round the body of the tube over the over lapping band the caps are

page_text: firmly secured.
After sealing up the contents of the tube as aforesaid and binding
sufficient string round the body of the tube to secure the caps a short paper wrapper
with a tab at one end is rolled with the string round the body of the tube and twisted
round the tab which is sealed to the side of the tester (as shown in drawing Fig. 3)
allowing sufficient string for lowering the tester into a w.c. or gully trap. The tester
now being complete the following is the mode of application viz. :—
Secure end of string, lower the tester into w.c. or gully trap, wash it through same
into the drain with a pail of water. The string will break the tab and allow the
tester to roll off remainder of the string releasing the covers or caps which will
then be displaced by the contraction of the strip of india rubber and the contents
of the tube discharged into the drain which will disclose defects by the odour from
same oozing from defective pipes and connections.
Fig. 1 repts. the tube with contents sealed up by stretching strip of sheet india
rubber over the ends and bound round with string. A the tube. B the contents.
C the sheet india rubber. D the string.
Fig. 2 repts. the tube with contents sealed up with caps attached to strip of sheet
india rubber and over lapping band. A the tube. B the contents. C the strip
of sheet india rubber. D the string. E the caps. F the rubber seating. G the
overlapping band.
Fig. 3 repts, the tester either Fig. 1 or Fig. 2 bound round with paper wrapper
ready for use. A the ends of tube. B the wrapper. C the tab. D the seal. E the
string.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I would have it under-
stood that I am aware of Specification No. 16924 A.D. 1894 and I do not claim
anything described and claimed therein, but I declare that what I claim is :-
1st. The improved apparatus for testing drains hereinbefore described and shown
in Figure 1 of the accompanying drawings.
2nd. The mode of hermetically sealing up the ends of the tube and the action
of the over lapping band in securing and releasing the caps substantially as described
and shown in Figure 2 of the accompanying drawings.
3rd. The application of the paper wrapper with tab for securing and releasing the
string substantially as described in the specification and shown in the accompanying
drawings.
Dated thin SAL 1
CT
.