Year: 1887

page_text: Date of Application, 7th Jan., 1887.
Complete Left, 3rd Mar., 1887.
Complete Accepted, 10th May, 1887.
We, JEAN CABUY and EDMOND LAMAL of Brussels in the Kingdom of Belgium,
Manufacturers, do hereby declare the nature of this invention to be as follows
:-
The traps usually employed for drains, sewers, soil pipes and the like consist of a
siphon bend or of a deepened chamber, the outlet from which is at a higher level than
the bottom, so that there is always a quantity of liquid in the bend or chamber
forming a seal to prevent return of offensive gases through the outlet.
In such traps
there shortly occurs an accumulation of more or less solid matter which tends to stop
the passage and also in many cases gives off offensive and noxious effluvia. This
invention has for its object to remedy this evil by a construction of trap which allows
of its being immediately cleared of sedimentary matter. For this purpose, the trap is
made in the form of conical pan, somewhat like the pan of a water closet, open at the
bottom, and with a siphon passage from near its bottom to an external outlet at a
higher level. The bottom is usually closed by a spherical valve from which a rod
extends upwards to some place where it is accessible to the hand. When there is an
accumulation of sediment in the pan, the valve is raised by pulling the rod upwards
and the contents of the pan escape directly into the drain or sewer. In order to
prevent passage of return gases while the trap is empty or has not sufficient liquid to
form a seal, the outlet is preferably made of rectangular form with a piece of
waterproof fabric hanging from its lower lip and a longer piece hanging from its
upper lip and overlapping the lower piece. This fabric acts as a valve preventing
gases from passing back through the trap, while it allows liquid to pass freely from
the trap. Traps constructed as above described may be applied to house drains, soil
pipes, drains from urinals and the like, also to street drains. In the latter application,
they should be well guarded by gratings above them, to prevent ingress of stones or
other solid fraguients that might interfere with the action of the valve at the bottom.
Dated this 7th day of January 1887.
ABEL & IMRAY,
Agents for the Applicants.

page_text: We, JEAN CABUY and EDMOND LAMAL of Brussels in the Kingdom of Belgium,
Manufacturers 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 :—
The traps, usually employed for drains, sewers, soil pipes and the like, consist of a
siphon bend or of a deepened chamber, the outlet from which is at a higher level than
at the bottom, so that there is always a quantity of liquid in the bend or chamber
forming a seal to prevent return of offensive gases through the outlet. In such traps
there shortly occurs an accumulation of more or less solid matter which tends to
stop the passage and also in many cases gives off offensive and noxious effluvia.
This invention has for its object to remedy this evil by a construction of trap
which allows of its being immediately cleared of sedimentary matter. For this
purpose, the trap is made in the form of conical pan somewhat like the pan of a
water-closet, open at the bottom, and with a siphon passage from near its bottom to
an external outlet at a higher level. The bottom is usually closed by a spherical
valve from which a rod extends upwards to some place where it is accessible to the
hand. When there is an accumulation of sediment in the pan, the valve is
raised by pulling the rod upwards and the contents of the pan escape directly
into the drain or sewer. In order to prevent passage of return gases while the
trap is empty or has not sufficient liquid to form a seal, the outlet is preferably
made of rectangular form with a piece of waterproof fabric hanging from its
lower lip and a longer piece hanging from its upper lip and overlapping the
lower piece. This fabric acts as a valve preventing gases from passing back
through the trap, while it allows liquid to pass freely from the trap. Traps
constructed as above described may be applied to house drains, soil pipes, drahis
from urinals and the like, also to street drains. In the latter application they
should be well guarded by gratings above them, to prevent ingress of stones or other
solid fragments that might interfere with the action of the valve at the bottom.
The accompanying drawings shew several modified constructions of traps according
to this invention to suit various applications. It is the conical pan, the bottom of which
is closed by the spherical valve O that can be raised from its seat by a rod t. From
the side of the pan R there is a siphon outlet D, which, as shewn in Figs. 10, 12, 14,
15, 17 and 18, is preferably made with a rectangular mouth having pieces T of
impervious fabric hanging from its upper and lower flanges. When there is not
sufficient liquid in the pan to form a seal, the fabric T acts as a valve permitting
outflow from the pan but preventing return of gases to it from the drain or sewer E.

page_text: When the trap is applied to a street drain as shewn in Fig. 10 the valve rod t is held
by a piece of chain to prevent the valve from being taken away, and a grating G is
arranged in the mouth C of the sink to prevent entrance of fragments such as might
interfere with the action of the valve O. For closets the traps are arranged as shewn
in section by Fig. 1, or the valve O may be worked by levers as shewn in section by
Fig. 7 and in plan by Fig. 9. For a house drain the trap is arranged as shown
in Fig. 8.
Having now particularly described and ascertained the nature of this invention and
in what manner the same is to be performed we declare that what we claim is :-
1. The construction and use of a drain trap consisting of a pan open at the bottom
which is provided with a removeable spherical valve, substantially as and for the
purposes set forth.
2. In combination with a drain trap of the kind referred to in the preceding claim
a valve at the siphon outlet consisting of pieces of impervious fabric arranged and
operating substantially as described.
ABEL & IMRAY,
Agents for the Applicants.