IMPROVEMENTS IN STENCH TRAPS
Year: 1882

page_text: PROVISIONAL SPECIFICATION left by the said John Morton Hale at the
Office of the Commissioners of Patents on the 15th May 1882.
JOHN MORTON HALE of Carter Lane, in the city of London, General Agent
"IMPROVEMENTS IN STENCH TRAPS "
My invention relates to improvements in stench traps, and consists in so
constructing the same that they will not be liable to derangement through care-
lessness, neglect or otherwise and that they will effectually prevent the escape of
foul air or gas and offensive odours from sinks, drains and other receptacles for the
liquid refuse matter of dwelling houses, yards, areas, stables, streets, courts and
other places having conduits for drainage purposes and that they can be used as
seals to cover the inlets to drains generally and so that they cannot be unsealed
during the process of cleansing and will effectually prevent the admission of solid
substance capable of stopping the waste pipes, or drains leading therefrom, and
that the seal will not be liable to be broken by evaporation.
The several parts of my improved stench trap are constructed of iron, brass, lead,
pottery or other suitable metal or material
It has an outer box or caso with a rebate or recess to receive a perforated cover
or grating and an outlet in the lower part also horizontally placed in or about the
centre of the interior of the box or case, a division with a pipe dipping into a
suitable reservoir or receptacle which is so fixed or placed in the lower part of the
interior of the box or case as to allow of a free overflow while it is in a secure
position where it cannot be tampered with to break the seal or render the same
inoperative. In the upper part of the interior of the box or case is a tray or
strainer hinged or otherwise attached so as to receive and arrest any solid substance
that may pass the perforated cover or grating or enter the box or case if the cover
should be removed. This arrangement is important in kitchen and other sinks it

page_text: is also very important in stables to prevent any chaff, hay, straw, dung or other
refuse from choking the trap or the drains leading therefrom. This tray or strainer
being hinged or loosely attached to the box or case on one side and having a lug
or projecting part on the opposite side to support it in a slot or bearing and having
also a handle or projecting piece at the top can easily be lifted or opened and made
to shoot outside any solid substance or sediment which it may have received but
it cannot be detached from the trap.
In some instances I construct my improved stench trap with two seals and a
strainer or tray and in some instances I omit the strainer.
I also make a combined tray or strainer and dipping pipe and fit it to a suitable
box or case so as to form a seal somewhat similar to the well known bell trap, this
combination giving facilities for cleansing purposes and also for the arrest of any
solid substance capable of stopping the waste pipe or drain which the ordinary
bell trap does not possess.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said John Morton Hale in the Great Seal Patent Office on the
7th November 1882.
JOHN, MORTON, HALE, of Carter Lane, in the city of London, General Agent
"IMPROVEMENTS IN STENCH TRAPS
$3
My invention relates to improvements in stench straps, and consists in so
constructing the same that they will not be liable to derangement through care-
lessness, neglect or otherwise and that they will effectually prevent the escape of
foul air or gas and offensive odours from sinks, drains and other receptacles for the
liquid refuse matter of dwelling houses, yards, areas, stables, streets, courts, and
other places having conduits for drainage purposes and that they can be used as
seals to cover the inlets leading to drains generally and so that they cannot be
unsealed during the process of cleansing and will effectually prevent the admission
of solid substance capable of stopping the waste pipes, or drains leading therefroin,
and that the seal will not be liable to be broken by evaporation.
The several parts of my improved stench trap are constructed of iron, brass, lead,
pottery or other suitable metal or material.
It has an outer box or case with a rebate or recess to receive a perforated cover
or grating and an outlet in the lower part also horizontally placed in or about the
centre of the interior of the box or case, a division with a pipe dipping into a
suitable reservoir or receptacle which is so fixed or placed in the lower part of the
interior of the box or case as to allow of a free overflow while it is in a secure
position where it cannot be tampered with to break the seal or render the same
inoperative. In the upper part of the interior of the box or case is a tray or
strainer hinged or otherwise attached so as to receive and arrest any solid substance
that may pass the perforated cover or grating or enter the box or case if the cover
should be removed. This arrangement is important in kitchen and other sinks, it
is also very important in stables to prevent any chaff, hay, straw, dung or other
refuse from choking the trap or the drains leading therefrom. This tray or strainer
being hinged or loosely attached to the box or case on one side and having a lug
or projecting part on the opposite side to support it in a slot or bearing and having
also a handle or projecting piece at the top can easily be lifted or opened and made
to shoot outside any solid substance or sediment which it may have received but
it cannot be detached from the trap.
In some instances I construct my improved stench trap with two seals and a
strainer or tray and in some instances I. omit the strainer.
I also make a combined tray or strainer and dipping pipe and fit it to a suitable
box or case so as to form a seal somewhat similar to the well known bell trap, this
combination giving facilities for cleansing purposes and also for the arrest of any
solid substance capable of stopping the waste pipe or drain which the ordinary bell
trap does not possess.
In order to enable my invention to be better understood I will proceed to
describe the same by reference to the accompanying drawing in which figures 1, 2,
3, 4, 5 and 6 represent vertical transverse sections of various forms of stench traps
constructed according to my invention. Similar letters in all the figures represent
similar or corresponding parts.
I will first describe my invention by reference to figure 1,. a, a, is the outer
box, case or body of the trap which may be made circular or square in plan; b, is
the perforated cover or grating which is made to rest in a rebate or recess as
shewn; c, is the tray or strainer which is binged or loosely attached on one side

page_text: at c, and has a lug or projection c³, on the opposite side resting in a slot or bearing
and also a piece c³, projecting upwards and forming a handle for lifting or opening
the said tray outwards for the purpose of discharging any solid matter that may
liave passed the perforated grate or cover b; d, is the horizontal division and d¹, d₁,
the pipe which dips into the receptacle or reservoir e, and forms the seal of the
trap is the outlet for connecting with the waste pipe or drain.
The interior parts d, and e, may either be made moveable as shewn in the half
section on the left hand side of figure 1, or attached as shewn in the half section on
the right hand side of figure 1.
By this construction of trap it will be seen that the receptacle or reservoir e,
being in the lower part of the interior of the box a, will allow of a free overflow
of water into and through the outlet f, into the waste pipe or drain and is in a
secure position where it cannot be tampered with to break the seal or render the
same inoperative. Also that the tray or strainer c, will receive and arrest any
solid substance which may pass the perforated cover or grating b, or which may
enter the box or case if the cover b, should be removed. Further as the tray or
strainer c, is hinged to the box or case as herein before described it can be easily
lifted or opened so as to shoot outside any solid substance or sediment which it may
have received.
Figure 2, represents two half sections of a trap similar in all respects to that
represented in figure 1, except that the tray or strainer c, is dispensed with.
Figure 3, represents a section of a trap with a water seal similar to the well
known bell trap, fitted with a tray or strainer and dipping pipe or division
combined thus giving great facilities for cleansing and also for the arrest of any
solid substance capable of stopping the waste pipe or drain. This trap, as is also
that shewn in figure 1, is very suitable for stables, sinks and other places where
solid matter is liable to pass the top cover or grating.
Figures 4, 5, and 6 are sections representing modifications of my improvements
suitable for street traps or gullies. a, is the box or body of the trap; b, the
ordinary grating; e, a division and d', a dipping piece forming the seal to the
overflow at g, leading to the outlet f, to the sewer or drain; g', is a moveable lid
or cover resting in a rebate or recess in the bottom of the box or case with suitable
packing to render it water tight but so that it can be easily lifted out for the
purpose of examining or flushing the drain.
Figure 5, shews a trap similar to that shewn in figure 4, except that it has an
overflow at both sides and is suited to a great rush of water or where it is desired
to be self-cleansing.
The trap shewn in figure 6, is also similar to that shewn in figure 4, except that
I provide a hinged flap or cover h, and frame fixed in the overflow aperture g, and
dispense with the dipping piece d. This flap which forms the seal is formed in
two or more parts hinged or linked together so that when the flow of water is
small the upper part of the flap remains closed and thus prevents the escape of
sewer gas.
In its closed or normal condition it may rest against the planed or
smooth surface of the frame or against a rubber, leather, or other suitable bead or
fillet. A grating or suitable guard i, may be attached to prevent any solid
substance passing that would be liable to become fixed between the flap and frame
to the injury of the seal. Figures 4, and 6, may also be used as flushing chambers
as by filling the trap with water and lifting the moveable lid or cover g', a large
volume of water would be suddenly let in to the full capacity of the drain. The
box or body of these gullies can be made of any suitable dimensions or capacity to 5
arrest the inud or solid matter where it is desirable to prevent it from passing to
the sewer or drain, or where as in figures 4, and 6, it is intended to be used
also as a flushing chamber, or they can be made small and to a great extent self
cleansing.
The box or body of these three last named gullies can be made to suit any kind
of street grating now in use.
In addition to the six traps illustrated by the drawings and herein-before

page_text: described I also construct my improved stench trap with two water seals which
combine the principles of figures 2, and 3.
Having thus described the nature of my said invention and the manner of
performing the same I wish it to be understood that what I claim is :-
Firstly. A gulley or trap with the overflow in the upper part and a conduit
leading therefrom to the lower part so that the outlet may be at the bottom for
connection with the pipe or drain as hereinbefore described and represented in
figures 1, 2, 4, 5, and 6, of the accompanying drawing.
Secondly. In a. trap constructed as hereinbefore described a hinged tray or
strainer situated in the interior of the trap and underneath the top cover or grating
as and for the purpose hereinbefore described and represented in figure 1, of the
accompanying drawing.
Thirdly. A tray or strainer and bell or dipping pipe or division combined fitted
to a suitable trap as herein before described and represented in figure 3 of the
accompanying drawing.
Fourthly, The application to a trap constructed as herein before described of a
moveable lid or cover with a water tight joint fitted in any suitable position in
the interior of the trap or gulley for the purpose of examining the drain without
disturbing the gulley or its surroundings and which may also be used for flushing
purposes as herein before described and represented in figures 4, 5, and 6 of the
accompanying drawing.
Fifthly. The improved trap or gulley provided with a hinged flap and frame
constructed as described fixed in the outlet aperture of the gulley as hereinbefore
described and represented in figure 6, of the accompanying drawing.
In witness whereof I the said John Morton Hale have hereto set my hand
and seal this thirtieth day of October in the year of our Lord one
thousand eight hundred and eighty two
Witness.
G. F. REDFERN
Patent Agent
4 South St
Finsbury
London,
J. MORTON HALE (L.S.)