Improvements in Apparatus for Testing Drains and the like.
Year: 1898

page_text: Improvements in Apparatus for Testing Drains and the like.
I, WILLIAM HENRY HAMMOND, of 18, East Moor Road, Wakefield, in the County
of York, Sanitary Inspector, do hereby declare the nature of this invention to be
as follows:-
:-
I employ a glass or other tube encased in paper, rubber, or other suitable
material, in which are placed the chemicals to be used in testing. A spring is
placed inside or outside the tube to ensure the displacement of the said chemicals.
The tube may be charged with either powder or liquid, and the said tube is either
broken by hand or exploded by pressure from an air pump attached thereto.
When the pump is used the springs before named are not required for the dis-
placement of the chemicals. Or I may dispense with the glass tube and its cover
and employ in place thereof capsules of gelatine or other suitable material for
holding the chemicals.
JOHN E WALSH,
Royal Exchange Chambers, Boar Lane, Leeds,
Patent Agent for the Applicant.
Improvements in Apparatus for Testing Drains and the like.
I, WILLIAM HENRY HAMMOND, of 18, East Moor Road, Wakefield, in the County
of York, Sanitary Inspector, do hereby declare the nature of this invention, and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:-
-
The object of my invention is to provide a means of and an apparatus for testing
drains and the like.
DESCRIPTION OF DRAWINGS.
Fig. 1 shows my improved drain tester.
Figs. 2, 3, and 4 show modifications of same.
I employ a tube or bulb A (see Figs. 1 and 4) of glass, earthenware, or other
brittle material, which I encase in a bag or cover B of rubber or the like sub-
stance.
The tube or bulb is charged with any suitable strong-smelling chemical, and
is provided with a screwed nipple C, which is connected with an ordinary air
pump when the tester is to be used.
"

page_text: The said nipple C is wired or otherwise secured within the mouth of the bag B,
and is preferably made in soft metal with one end closed (see Figs. 1 and 2) so
that the tester is sealed until required for, use, a groove 1 being left to facilitate
cutting off the end when the pump is to be connected. Or the tester may be
sealed by means of a detachable cap E (see Fig. 3). The inner end of the nipple
may also be closed by a thin rubber cap F, which is blown off by the pump.
If desired I may dispense with the inner tube or bulb A, and employ only
(see Figs. 2 and 3) the bag or capsule B, which may be of rubber, gutta-percha,
gelatine, or the like substances, and of any suitable shape.
To test the drain the inner tube or bulb A (if such be employed) is broken,
and the charged tester, after being connected to the air-pump with a suitable
length of tubing, is inserted into the water-closet trap, gulley trap, or other suit-
able opening in the drain, and is flushed with water to ensure it passing the trap.
The bag, cover, or capsule B is then burst by pressure from the air pump, the
chemicals being liberated within the drain and giving an effectual test. The
gases or smoke arising from the chemicals may be driven throughout the course
of the drain by operating the pump for a short time after the tester is exploded,
the report of which may be plainly heard by the operator.
The tester is absolutely water and weather proof until exploded by the pump.
Having now 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. A tester for drains and the like, consisting of a rubber or the like bag or
capsule (either with or without a glass or the like lining) charged with strongly
smelling chemicals and having any suitable connection for an air pump for
exploding the said bag or capsule, substantially as shown and described.
2. In a drain tester the combination of the rubber or the like bag or capsule B
(with or without the glass lining A) and the screwed nipple C (having the cap F
and either the closed grooved end D or the detachable cap E) substantially as,
and for the purposes, shown and described.
Dated this 23rd day of Santember 1898
JOHN E WALSH,
Royal Exchange Chambers, Boar Lane, Leeds,
Patent Agent for the Applicant.