Improvements in Traps for Drainage and Appliances in connection therewith.
Year: 1890

page_text: COMPLETE SPECIFICATION.
Improvements in Traps for Drainage and Appliances in connection
therewith.
We, JAMES WHITLOCK, of No. 7, Staggs Terrace, High Street, Eastleigh, in the
County of Hants, Bedstead Manufacturer, and FREDERICK EDWARDS, of Gloucester
Lodge Belmont Road, Portswood, in the County of Hants, Captain in H.B.M. Royal
Navy, do hereby declare the nature of this invention and in what manner the same
is. to be performed, to ho particularly described and ascertained in and by the
following statement:-
Our invention relates to improvements in the trapping and deodorizing of soil pipes
generally, and has for its objects the trapping, sealing deodorizing and disinfecting of
such pipes in the most effective manner to secure perfect sanitation in dwelling houses
and inhabited buildings.
In order that our invention may be the better understood, we have appended the
accompanying sheet of drawings in which Figure 1 is a general view of the
arrangement, and Figures 2, 3 and 4 are views of the details, drawn to a larger
scale.
In carrying our invention into effect we employ an ordinary soil pipe A, Figure 1,
with closet, lavatory or sink traps of the ordinary pattern, at B. B', which may be of
any number relatively to the size and requirements of the building. A gas vent C,
with a revolving cowl, or equivalent device for facilitating the exit of sewer gas or
foul air, is attached to the soil pipe A, said vent and cowl being carried upwards to the
outside of the building. Referring to Figure 1, we have shewn a trap of a certain
shape and construction at D, and a deodorizing and disinfecting device at E, which
are also shewn by Figures 2, 3 and 4 drawn to a larger scale, and to which the.
following description applies.
The trap D, shewn in sectional elevation by Figure 2, and in plan by Figure 3,
may be made of metal, stone or earthenware or glass, and consists of a square, or
rectangular chamber F, to which is attached by flanges G or spigot and socket, the
exit end of the soil pipe A. The end of said soil pipe projects beyond the jointing G,
and is bevelled to form a seating for a hinged flap valve H, which may be provided
with a pin K so that if necessary a balance weight may be attached thereto at either
end, so as to balance the fluid pressure upon either side of the valve as desired. An
ordinary Strap Jis attached to, or forms part of the box or chamber F through
which the soil or sewage passes to the main or subsidiary drain or sewer in the
direction of the arrows, and affords an effectual seal, preventing the return of
foul air therefrom. A cover 1 is attached by means of a flange i, or a filleted water
seal, to the top of the box or chamber F affording access thereto, and proventing
leakage. The object of the specially constructed trap shewn by Figures 2 and 3 is to
afford a further protection from the inlet of sewer gas or foul air than is afforded by
the Strap J, also preventing the return of solid matter when the main drain or
sewer is flooded by a heavy rainfall or the like, and excluding rats, which, in the case
of drains and soil pipes as hitherto constructed, frequently enter a house or building
from the main sewer by means of the soil pipe.
gas or
Referring now to the deodorizing or disinfecting device shewn by E Figure 1, and
more particularly by the enlarged sectional elevation Figure 4, it will be seen that it
is fitted to the soil pipe A by means of branch pipes L and M, thus forming a bye-
pass thereto, although the slightly bent interior projection at a Figure 1 prevents any
passage of soil or sewage through E.
A chamber N, of any suitable shape, preferably spheroidal however, is formed of
two parts O and P, jointed by means of flanges or equivalent means, at b. The
pipes L and M forming the bye pass above referred to, are attached to O and P

page_text: respectively by any suitable means. An annular trough Q is cast upon, or attached
to, the lower part P of the chamber N, and extends beyond the flanges or equivalents b
to a sufficient extent so that the pressure of the atmosphere may act upon the surface
of any liquid contained therein. A number of holes c are provided, piercing the
wall of P, and arranged so as to enter the interior thereof at the bottom of the
trough Q. A vertical pipe R is cast ampon, or is attached to Pand practically forms
an extension of the pipe M, and is carried upwards within the chamber N so as to
be above the external edge of the annular trough Q. Said vertical pipe R may be
open at the top, or may be furnished with a cap S provided with radial holes or
openings.
In using this device, it is preferably fitted as shewn by Figure 1, below the lowest
inlet into the soil pipe, and is partly filled through the trough Q and holes c with any
suitable deodorizing or disinfecting fluid or solution, and the action thereof is as
follows, that is to say.
A downward rush of sewage and flushing water in the pipe A, Figure 1, tends, by
reason of the slight bend, a to reduce the pressure upon the surface of the liquid or
solution in the chamber N, Figure 4, when the action of the external atmospheric
pressure around the annular trough Q causes an increased degree of evaporation of
the volatile liquid or solution, and the resultant deodorizing or disinfecting vapor or
gas rises through the pipe L and neutralises any sewer gas or foul air in A above L
and a, or any that may arise from M through the vertical pipe R, while the fluid
contents of the trough Q being maintained above the level of the holes c, afford a
perfect liquid seal to the interior.
We do not confine ourselves to the particular formation or shape as set forth upon
the appended drawings, nor to the material or substance of which the different parts
constituting our said invention may be made.
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,
First. In the drainage of buildings and the like the construction and employment
of a trap as shewn by E Figure 1, consisting of a rectangular chamber F, cover I,
valve H and S trap J, substantially as and for the purposes herein described and
shewn by the accompanying drawings.
Second. In the drainage of buildings and the like, the construction and employment
of a deodorizing device, as shewn by E, Figure 1 consisting of a chamber N, annular
trough Q, pipe R and holes or openings c substantially as and for the purposes herein
described and shewn by the appended drawings.
Dated this 2nd day of August 1800
GEO. THOS. HYDE,
4, Moorfields, Fore Street, London, E.C., Agent for the Applicants.