waste water Apparatus.
Year: 1884

page_text: waste water Apparatus.
I, THOMAS DURRANS, Architect, of Upper Baker Street, c/o, Day Davies & Hunt,
Patent Agents, 321, High Holborn, both in the County of Middlesex, do hereby
declare the nature of my Invention for "IMPROVEMENTS IN TRAPS FOR SINKS,
BASINS, AND OTHER WATER OR WASTE WATER APPARATUS" to be as follows:-
This Invention relates to certain improvements in or applicable to the means of
trapping sinks, basins, lavatory basins, cisterns, baths, and other water or waste
water apparatus requiring to be trapped.
Special objects of the improvements are to obtain freedom of access to and
perfect command for cleansing purposes of the trap and waste pipe:-to obtain a
good scouring wash out in the usual action of the trap, and to avoid settlement of
deposit therein and prevent corrosion, to form a readily accessible and perfect trap,
thoroughly preventing the escape of sewer gas.
Traps for such purposes as hitherto usually formed, consist of a syphon form of
waste pipe with an upper freely removable grating, and formed or provided at the
lower bend with a removable screw cap for the removal of any deposit or stoppage
within the trap. In this arrangement the parts are most inconvenienty and
inaccessibly placed, and the waste pipe cannot be properly got at or cleaned on
account of the irremovable dip formed by a part of the pipe or trap itself.
It has been attempted to overcome certain of these disadvantages by the use of
a removable dip and of a cup supplied to catch the solid matters, the removable
dip being simply dropped or let into the said cup or receptacle.
The present improvements consist in the combination with a trap formed in such
a manner that direct access can be obtained both to the trap and to the branch or
waste pipe from the mouth or opening into the trap, of a removable dip preferably
of a conical formation of gradually decreasing diameter, and also preferably of a
spiral or analogously formed inner conformation, when such parts are united or
retained in position by corresponding screw or equivalently formed uniting surfaces
situated circumferentially of their upper edges or rims, and are at such parts also
formed with correspondingly inclined or equivalently formed meeting faces, which
when brought together by the act of turning the removable dip into position, are
brought truly together, and effectually prevent the escape of sewer gas or foul

page_text: smells. The removable dip is formed with an upper strainer or grating, and this
improved formation and arrangement of the parts ensures their being properly
brought together to prevent any escape of sewer gas, and prevents them from
being too readily separated by the domestic or user, and which facility is the
frequent cause of the introduction of sewer gas and ill-health into houses and other
buildings; and gives an accelerated and rotary cleansing motion to the water and
the better ensures the efficient cleaning out of the trap, and upon the removable
dip being unscrewed or removed by a key or convenient means every facility
for cleaning out the trap and waste pipe is immediately adjacent and both parts are
most conveniently accessible; and moreover in the usual action of the improved
trap there is no likelihood of deposit occurring therein, which does occur in the
arrangement hereinbefore referred to and for which express purpose the said cup is
provided.
When the improved trap is used in connection with a lavatory basin, butler's
sink, or other such like use its inlet is closed by an ordinary removable plug such
as in present use for preventing the outlet of the water until desired.
DAY, DAVIES & HUNT,
321, High Holborn, London, W.C.,
Agents for the Applicant.

page_text: Waste Water Apparatus.
I, THOMAS DURRANS, Architect, of Upper Baker Street, c/o, Day, Davies &
Hunt, Patent Agents, 321, High Holborn, both in the County of Middlesex, do
hereby declare the nature of my Invention for "IMPROVEMENTS IN TRAPS FOR
SINKS, BASINS, AND OTHER WATER OR WASTE WATER APPARATUS," 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 certain improvements in or applicable to the means of
trapping sinks, basins, lavatory basins, cisterns, baths, and other water or waste
water apparatus requiring to be trapped.
Special objects of the improvements are to obtain freedom of access to and
perfect command for cleansing purposes of the trap and waste pipe :-to obtain a
good scouring wash out in the usual action of the trap, to avoid settlement of
deposit therein and prevent corrosion, and to form a readily accessible and perfect
trap, thoroughly preventing the escape of sewer gas.
Traps for such purposes as hitherto usually formed, consist of a syphon form of
waste pipe provided or fitted with an upper freely removable grating, and formed
or provided at the lower bend with a removable screw cap for the removal of any
deposit or stoppage within the trap. In this arrangement the parts are most
inconveniently and inaccessibly placed, and the waste pipe cannot properly be got
at or cleansed on account of the irremovable dip formed by a part of the pipe or
trap itself.
It has been attempted to overcome certain of these disadvantages by the use of
removable tubular dips with and without a cup supplied to catch or retain the solid
matters, the removable dips being screwed into position in the inlet of the trap
with packing interposed between the parts.
The present improvements consist in the combination with a trap formed in such
a manner (substantially as hereinafter described) as that direct access can be
obtained to the interior both of the trap and of the outlet branch or waste pipe
from the mouth or inlet into the trap, of a removable dip of a conical or analogous
formation and of a spiral or analogously formed inner conformation effective in
giving a swilling scouring motion to the escaping water and to the water forming
the seal and in thoroughly cleansing out the trap at each action, when such parts
are united or retained in position by corresponding screw or equivalently formed
uniting surfaces situated circumferentially of their upper edges or rims, and are
at such parts also formed with correspondingly inclined or equivalently formed
meeting faces which are brought truly together by the act of turning the removable
dip into position and then effectually prevent the escape of sewer gas or foul
smells without requiring and for the purpose of avoiding the use of intervening
nacking

page_text: Various modifications of carrying the Invention into practice are illustrated on
the accompanying drawings.
Fig. 1, represents a sectional elevation of a trap constructed in accordance with
one modification of the present improvements, as adapted to a sink. Fig. 2, being
a plan of the removable dip with the plug removed.
Fig. 3, represents a like view to Fig. 1, of a modification adapted to a lavatory
basin. Fig. 4, being a horizontal section at a-b Fig. 3.
Figs. 5, and, 6, represent sectional elevations respectively through c―d, and g—h
Fig. 7, of a modification adapted for baths. Fig. 7, being a plan view, and Fig. 8,
a sectional plan view through e-f, Fig. 5.
1, represents the sink, basin, bath, or other part to which the improved trap, 2;
is to be applied, and, 3, represents the removable dip of the improved formation
peculiar to the present improvements.
In accordance with the present improvements, the bend, 4, of the trap, and the
outlet branch, 5, therefrom, are so arranged in relation to the inlet, 6, as that direct
access can be had to the interior of both for cleansing and other purposes from the
said inlet, upon the removable plug, 7, and removable inlet, 3, being removed from
the trap, the outlet, 5, being also arranged as high as possible to admit of a rod
being directly inserted and passed down it for removing any obstruction in the
outlet or waste pipe.
•
In the modification illustrated in Fig. 1, the trap is also shown as formed with a
side inlet, 8, for connection with an overflow waste pipe, 9, leading from an upper
part of the sink, and its outlet, 5, is also shown as provided with a clack valve, 10,
which may be provided in such cases as may be necessary as an additional precaution
against the effects of syphoning which is liable to occur when a series of traps are
connected with a waste pipe common to them, and for preventing back draught.
When provided, this valve would be simply suspended as at, 11, with a constant
tendency to bear against a knife edge, 12, and it would be open to inspection upon
the removal of a screw cap, 13.
In the modification illustrated in Figs. 5, to, 8, the outlet from the trap is also
shown as formed with a bridge piece, 14, which deepens the seal, and renders it
more effective, without increasing the size of the trap or interfering with free access
to the waste outlet.
The trap may be fixed in position in various ways; in Figs. 1, and 3, it is shown
as externally screwed as at, 15, and as let into a convenient seating, 10; and in
Fig. 5, as being soldered to the bottom of the bath; but in all modifications it is
internally screwed (or otherwise equivalently formed as with a bayonet joint, vide
Fig. 5) as at, 17, or at a part adjacent to its inlet, for the reception and connection
of the said removable dip, and it is also formed at or adjacent to its inlet with an
inclined or equivalently formed seating, 18, upon and against which the said
removable dip is brought in true contact by the act of turning it into its intended
and proper position.
In all modifications the removable dip is made with exterior screwed and
inclined or equivalently formed parts, 19, 20, respectively corresponding with
those, 17, 18, of the trap, and this improved formation and arrangement of the
parts ensures their being properly brought together without the need of any
intervening packing to prevent any escape of sewer gas, and prevents them from
being too readily separated by the domestic or user, and which facility in existing
traps is the frequent cause of the introduction of sewer gas and consequently of ill-
health into houses and other buildings.
The removable dip is or may be formed with an upper strainer or grating, 21,
and its inlet also is or may be provided especially when used in connection with a
lavatory basin, butler's sink, bath or other like use, with an ordinary removable
plug, 7, such as in present use for preventing the outlet of water until desired, and
it may be provided with projecting parts, 22, for affording facility of placing
turning and removing the dip, or it may be placed turned or removed by a key or
by other convenient means,

page_text: A peculiar feature of the removable dip constructed according to the present
Invention is that it is so conformed internally as to give an accelerating rotatory
cleansing motion both to the escaping water and to the water forming the seal of
the trap, thus causing the water to be effective in thoroughly scouring out the trap
at each action, and in preventing any lodgment or accumulation of deposit therein.
This is mainly effected by the peculiar spiral or analogous formation given to the
interior of the removable dip, vide Figs. 1, 3, 5, and, 6, constituting it a swill dip
effective in preventing the escape of sewer gas, and also in giving a swilling motion
to the water for the purpose aforesaid.
The internal formation of the swill dip, may, however, vary from that illustrated
on the accompanying drawings, as the present improvements have more particular
reference to the formation of the interior of the said removable dip in such an
improved manner as that it shall be effective in giving a rotatory swilling motion
to the escaping water, than to any particular formation of such part, as it is
obvious that the same result may be attained with various formations, but I find
the forms illustrated on the accompanying drawings to be very effective for the
intended purpose.
The position of the swill dip in relation to the trap, and of their respective
outlets, is also instrumental in attaining the said object of causing the bend or
body of the trap to be scoured out at each operation, and for this purpose the swill
dip is set out of the centre of the body of the trap, vide Figs. 1, 3, 4, 5, 7, and, 8,
and the outlet, 23, therefrom is also so disposed away from the outlet, 5, of the trap
as to give a rotatory motion to the water in the trap towards the said outlet, 5.
It will thus be seen that upon the removable swill dip being unscrewed or
removed, every facility for cleaning out the trap and waste pipe is immediately
adjacent, and both parts are most conveniently accessible; and, moreover, in the
usual action of the improved trap there is no likelihood of deposit occurring
therein, which does occur in one of the existing arrangements hereinbefore referred
to and for which express purpose the said cup is provided.
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. The combination with a trap (for trapping sinks, basins, lavatory basins,
cisterns, baths, and other water or waste water apparatus) formed in such a manner
(substantially as hereinbefore described) as that direct access can be obtained to its
interior and to that of its outlet branch or waste pipe from the mouth or inlet into
the trap, of a removable dip of a conical or analogous formation and of a spiral
or analogously formed inner conformation effective in giving a swilling scouring
motion to the escaping water and to the water forming the seal and in thoroughly
cleansing out the trap at each action, when such parts are united or retained in
position by corresponding screw or equivalently formed uniting surfaces situated
circumferentially of their upper edges or rins, and are at such parts also formed
with correspondingly inclined or equivalently formed meeting faces which are
brought truly together by the act of turning the removable dip into position and
then effectually prevent the escape of sewer gas or foul smells without requiring
the use of any intervening packing, substantially as hereinbefore described with
reference to the accompanying drawings.
2. The application to the outlet of such a trap when combined with such a
movable swill dip, of a clack valve and knife edge, substantially as and for
the purposes specified.
3. The like application of a bridge piece (14) substantially as and for the purpose
specified.
4. In traps for such purposes as are hereinbefore specified or referred to, having
removable dips, the application of the improved means herein before described for
securing and bringing them truly and properly together in such a manner as
to effectually prevent the escape of sewer gas without requiring the use of any

page_text: intervening packing such means consisting in making such parts with corresponding
screw or equivalently formed uniting surfaces situated circumferentially of their
edges, and with correspondingly inclined or equivalently formed meeting faces
which are brought truly together by the act of turning the removable dip into
position, substantially as specified.
5. In such traps, the formation of the interior of the removable dip of a spiral
or analogous formation in such a manner as to be effective in giving a rotatory or
swilling cleansing motion to the escaping water, or to the escaping water and to the
water forming the seal of the trap, substantially as and for the purpose specified.
6. In such traps, setting the removable swill dip out of the centre of the body of
the trap, and so disposing its outlet in relation to that of the trap as to cause a
swilling or scouring out of the water forming the seal of the trap at each operation,
substantially as specified.