An Improved Drain and Soil-pipe Testing Apparatus.
Year: 1892

page_text: Date of Application, 11th May, 1892
Complete Specification Left, 13th Feb., 1893-Accepted, 8th Apr., 1893
PROVISIONAL SPECIFICATION.
An Improved Drain and Soil-pipe Testing Apparatus.
HENRY EDWARD BURNET, 50) Queens Road, Peckham S.E. Queen's Tax
Collector and WILLIAM EDWIN GROOM, 117 Wells Street Camberwell, S.E.
Sanitary Inspector, do hereby declare the nature of this invention to be as
follows:-
In our present invention we use one or more cases containing oil of peppermint,
asafoetida, or other substance for the purpose of creating a strong smell; in com-
bination with other case or cases containing a combustible composition for the
purpose of creating smoke upon being ignited at a convenient time after-
and
or
wards expelling the strong smelling substance from the former case inside the
drain.
The case containing the combustible composition may be made of sheet metal
and one or both ends may be dome or conical shaped. The case containing the
strong smelling substance may be inside or outside the other case and be made of
glass or other material.
Either case may have a string or the like attached and a pliable or rigid tube
projecting from its mouth.
Dated this 11th day of May 1905
H. E. BURNET.
W. E. GROOM.
COMPLETE SPECIFICATION.
An Improved Drain and Soil-pipe Testing Apparatus.
We, HENRY EDWARD BURNET of 50 Queens Road, Peckham, London, S.E.,
Queens Tax Collector, and WILLIAM EDWIN GROOM of 117 Wells Street,
Camberwell, London, S.E. 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 ascertained in and by the following statement :-
This invention relates to an improved drain and soil-pipe testing apparatus of
the character for producing large quantities of thick smoke when ignited and our
present improvement consists mainly in the arrangement construction and com-
bination with such smoke-producing apparatus of a very powerful strong smelling
material or materials so that when the smoke-producing material is ignited the heat
from same will expel the very strong smelling substance so that besides the smoke
we produce a very powerful and pungent smell and by this means we thus obtain a
double security in testing drains or soil-pipes and the like.
According to our present invention we use one or more cases containing oil of
peppermint, asafoetida or any other suitable substance for producing or creating a
strong smell arranged and in combination with another case or cases containing any
suitable smoke-producing combustible composition which latter on being ignited
in any suitable manner the heat therefrom will expel the said strong smelling
substance.
The case or cases containing the combustible composition may be made of sheet
metal paper card-board or of any other suitable material and one or both ends may
be domed or conical shape or in the form of a pyramid or any other suitable form
and such case may or may not be mounted and held in any suitable holder or other
suitable support.
The case or cases containing the strong smelling substance may be arranged

page_text: either insde or outside or in the midst of the aforesaid combustible material and
may be made of any suitable material or materials.
And in order that our present invention may be easily understood and readily
carried into practice we will proceed to further describe same with reference to the
accompanying sheet of drawings.
Fig. 1 is a vertical section of one arrangement according to our present improve-
ments the drain tester being shown with the handle attached thereto.
Fig. 2 is a vertical section of another arrangement.
Fig. 3 is a similar view of a third modification.
Fig. 4 is a vertical section of still another arrangement.
Similar letters of reference indicate corresponding parts throughout the figures.
C is the smoke and heat producing combustible composition.
F is the fuse for igniting such composition.
H is the case containing such composition.
J is the case or holder for containing the strong smell producing material.
P is the strong smelling composition or material.
Z is the handle for manipulating the apparatus.
In the arrangement shown in Figs. 1, 2 and 3 the case J is arranged to contain
strong smelling material in liquid form.
In the arrangement shown in Fig. 4 the space between the case H and the case J
may be filled with felt or other suitable fabric or material to be soaked with tallow
or other fat or other suitable smell-producing material which will be expelled when
the combustible material C is ignited.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
An improved drain and soil-pipe testing apparatus-consisting of a case or cases
containing combustible smoke and heat-producing material in combination and
acting in conjunction with a case or cases containing any suitable strong smell-
producing material (such as asafoetida, oil of peppermint etc.) this latter being
expelled by the heat produced from the said combustible material when ignited
substantially in the manner and for the purposes hereinbefore set forth.
Dated this 13th day of February 1893
TONGUE & BIRKBECK,
34, Southampton Buildings, Chancery Lane, London, W.C.,
Agents for the Applicants.