Combined Flanged Stench Trap, Cesspool, and Mud Receiver.
Year: 1896

page_text: PROVISIONAL SPECIFICATION.
Combined Flanged Stench Trap, Cesspool, and Mud Receiver.
JOSEPH JOHNSON Brass Founder Thompson Street Bilston Staffordshire do hereby
declare the nature of this invention to be as follows:-
A combined flanged stench trap cesspool & mud receiver, to be manufactured in
iron brass or any metals also in porcelain or earthenware or part metal & earthenware
or porcelain this invention does away with the necessesity of stone or brickwork the
construction of it prevents any escape of foul gass from the drains & prevents
anything passing through it that could stop a drain it also prevents vermin such as
rats &c. coming through it & thence to the surface & the outlet provided is so
constructed that in cases of flushes the water &c. intended to go down the drain can
pass through as fast as the drain pipe can take it away whilst the mud receiver is so
constructed that it can be readly cleaned without the trap becoming unsealed this
invention is intended to apply to all buildings urinals streets &c.
Dated this 11th day of May 1896.
I, JOSEPH JOHNSON of Thompson Street, Bilston, Staffordshire, Brassfounder,
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 improvements in stench or gulley traps adapted for use in
connection with the draining of streets, yards, stables, slaughter-houses and the like,
and also for sinks, baths, lavatories, urinals and general domestic purposes, and consists
in constructing and fitting the same in such a manner that they are more effective in
their action, and less likely to get out of order than hitherto.
The advantages obtained by the said improvements are
1st. A more perfect seal upon the drains against the escape of sewer gas,
2nd. The seal waters cannot become frozen in winter or evaporated in hot weather,
3rd. The drain can never become seriously stopped,
4th. Vermin such as rats cannot come therethrough,
5th. The trap can be cleaned without breaking the seals, and without tools,
6th. That no brick or stone work is required to form a lead thereto from the
surface, and
7th. The efficiency thereof to cope with any extra flushes owing to storms.
The improvements consist in constructing a combination cesspool and seals within
the interior of the lower part of the trap, and protecting and governing the same by a
perforated winged plate or riddle, constituting a lid thereto, and also in providing and
fitting the said trap with a mud receiver, arranged in such a manner within the
ID01

page_text: interior as to first receive the whole of the matter flowing into the said trap, and to
separate the solids from the liquid before the latter is allowed to pass to the seals and
drain pipe; furthermore, the crown of the trap is flanged obliquely to constitute a
lead to the interior, the same being cast in one piece with the trap casing or walls.
In the accompanying sheets of drawings the invention is practically illustrated,
Figs. 1, 2 and 3 representing respectively a part plan, a verticle section, and a
horizontal section of a gulley trap suitable for use upon streets, the last fig. showing
semi-sections upon the lines A B and C D Fig. 2. This gulley trap takes the form of
a rectangle in surface construction, but a circular one on the same lines is shown in
plan, verticle section, and horizontal section at Figs. 4, 5 and 6; flush inlets being
directed thereinto for cleansing, which renders this particular trap most valuable for
urinals.
Figs. 7, 8 and 9 represent in plan, verticle section, and horizontal section a gulley
trap the particular construction of which adapts it for sinks, baths and the like; the
casing walls at the top part thereof extending themselves into a flange, the formation
of which overcomes the necessity of a stone or bricked lead being formed in its
affixment to the drain pipe.
The same letters of reference are used to indicate like parts in the whole of the
figures.
In Figs. 1 to 3 the body of the gulley trap a somewhat resembles a rectangular
shaped box, being composed of side walls a², end walls a³, and partially closed bottom a³ ;
the top a thereof, which is an open one, being closed by a lid or grating g, as
hereinafter described. The central part of the partially closed bottom a is fashioned
into an outlet a, surrounding which, on both sides, are the seal water chambers a', a³,
all hereinafter more fully described. The outlet a consists of a downpipe part or
neck branching upwards toward the trap into a circular enlargement b, and centrally
disposed within this enlargement is a bowl or cup 62, supported by webs ³ projecting
across the mouth of the circular enlargement b, as aforesaid, the said webs being
interspaced by openings & constituting outlets from the trap to the downpipe part or
neck c.
Surrounding the circular enlargement b, and formed also in one piece with it, is the
seal water chamber a', herein before mentioned, consisting essentially of a circular or
other shaped channel or gutter d sunken within the bottom a' of the trap a; a ledge
part, of the trap bottom, being formed upon the boundary thereof to support a
perforated cover plate e, permanently fitted within the hollow interior of the trap body.
This cover plate e, which can be made from any suitable material, has holes or
piercings formed vertically therethrough; a ring flange es, dipping into the seal
water chamber a, and a central tubular part e, adapted to depend into the seal water
chamber a, depending from its underside; a bar es being fitted across the top of the
depending part e to constitute a handle to the said plate.
The piercings e in the plate e are arranged outside the ring flange e³, or upon the
boundary thereof; that part of the plate between the said flange and the pipe e¹ being
entire. At certain distances apart upon the ring flange e³, and also upon the pipe e,
wings or right-angled rigid extensions, respectively marked e, e', are formed, which
dip well into the seal water chambers a', as, their function being to stir up and remove
settled matter lying within the said chambers when the cover plate e carrying them
is turned, and so to cleanse the seals formed by the water in conjunction with the
chambers a', as, the flange e, and the pipe e'.
Standing upon the cover plate e, as aforesaid, by means of feet f2, and also centrally
supported by means of lugs, standing out from the inner walls of the trap a, is a
mud receiver or precipitation tank f, consisting of an open topped enclosure having
projecting upwards from its centre a standpipe f', adapted to come coincident with
the depending pipe e of the cover plate e before described. Bars f are provided
across the open part of this mud receiver to enable it to be bodily lifted from the
interior of the trap, for the purpose of being emptied of its contents, and depending
thereinto and below the top edge of the same is a flange g2, and a dome like cover
part 93, both carried by the removable trap lid or grating 9, which rests upon an

page_text: inside ledge 94 made to receive it within the walls of the open top a* of the trap a.
This mud receiver is fitted to the interior of the trap body for the purpose of collecting.
all solid particles and heavy matters in suspension from the liquid flowing there-
through to the drain, and when in actual use constitutes in conjunction with its.
stand pipe, the lip or flange 2 and dome part 93 of the grill or lid g, a surface
water seal against any decomposed matter which may congregate upon the inner walls.
of the trap, or upon the cover plate and receiver.
The construction and arrangement of the outlet a is important, the openings 6,..
constituting the mouth thereof, being so contracted in width as to prevent any vermin
coming therethrough, whilst at the same time the area thereof exceeds that of the
downpipe or neck c.
The mud receiver fis adapted to be bodily lifted from the trap, whilst the cover
plate e is not removable but only capable of being rotated, or turned; the wings.
depending therefrom into the seal water chambers serving for the removal of all
deposited matters from the said chambers. By the provision of this non-removable
cover plate the bottom seals are permanent, even while the trap and its mud receiver
is being cleansed.
The construction of gulley trap shown in Figs. 4. 5 and 6 of the drawings is in
substance identical with the one hereinbefore described, other than flush inlets h and i
are provided through the side walls abounding the mud receiver, for the purpose of
cleansing the seals by flushing.
In Figs. 7 8 and 9 the construction is also for the most part the same, differing
only in the provision of a boundary flange m, adjacent to the grid top of the trap;:
the same being formed in one piece with the gulley trap walls. This flange m enables.
the gulley trap to be fixed without being built in by a coping of brick or stone work.
In gulley traps for certain purposes where the liquid sewage contains only small
particles in suspension, the mud receiver or precipitation tank may be dispensed with,
in which case the stand pipe part f₁ thereof would be made rigid with the cover
plate e, as shown in Fig. 10; the rough material from the sewage precipitating itself
upon the said plate.
In some cases the central seal water chamber a8 is dispensed with, and also the
part of the part e, relying solely upon the seal a'; the mouth of the outlet a in this
case being formed like a grating, to prevent vermin coming therethrough. In actual
working the sewage or refuse water first flows into the mud receiver or precipitation
tank, the sides of which it overflows, and takes the direction of the arrows, shown in
Fig. 2, to the seal water chambers a', a", and from thence through the openings 6 of
the outlet to the drain pipe; the thick or solid parts of the sewage being deposited in
its course.
The gulley trap and its parts may be made of metal or earthenware, or part metal
and earthenware, and the details within certain limits altered without departing from
the invention.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
1st. In gulley or stench traps, the construction and arrangement of the outlet a and
the seal water chambers a' as within the bottom of the trap body, so that the said
chambers completely surround the mouth to the outlet, for the purpose substantially
as described.
2nd. In gulley or stench traps, the combination of a perforated cover plate e, having
depending parts such as e³, e, with the outlet a" and seal water chambers a, as, for
purpose substantially as described.
the
3rd. In gulley or stench traps, the combination of the outlet a, seal water-
chambers a, a, and perforated cover plate e, fitted with depending parts e³, et, and
wings or extensions e, e', substantially as set forth.
4th. In gulley or stench traps, the use of a mud receiver or precipitation tank,.
substantially as described.

page_text: 5th. In gulley or stench traps, the combination of a cover plate e, mud receiver or
precipitation tank f, seal water chambers a', a³, and outlet as, substantially as set
forth.
6th. The combination with a gulley trap grid or lid g, having depending parts g³, g³,
of a mud receiver f fitted with a stand pipe f*, for the purpose described.
7th. A gulley or stench trap body having a flanged part m, substantially as
described and set forth in connection with Figs. 7 8 and 9.
8th. The general construction and arrangement of the parts as set forth in
Figs. 1 to 10.
Dated this 11th day of Wahan 1807
W. P. THOMPSON & Co.,
11 Burlington Chambers, New Street, Birmingham, Agents for Applicant.