Improved Double Trapped Gulleys.
Year: 1895

page_text: Improved Double Trapped Gulleys.
1, WILLIAM WARNER, of Hope Drive, The Park, Nottingham, Civil Engineer,
do hereby declare the nature of this invention to be as follows:-
Numerous gulleys have been introduced for taking water from streets and yards,
also from waste pipes, but difficulties have been experienced in the design and
manufacture of a gulley to prevent the escape of sewer gases into the atmosphere,
and to stop solids from passing into the sewer or drain, combined with easy means
of cleansing.
The object of this invention is to overcome these difficulties.
This invention consists of a double trapped gulley, constructed in suitable material,
as the principal features may be made in pottery, iron or brickwork, or with certain
parts of each material.
The body part, forming the catch pit, may be made in any convenient shape,
finished at the surface with the usual grate and frame, but sufficiently deep to allow
deposit of solids such as road grit, and having a branch pipe on the side, made to
form a lip to prevent the passing of the solids into the sewer, and also forming a
single syphon.
The branch pipe is continued similar to a syphon bend, thus obtaining a double
syphon or trap, and preventing gases passing from the sewer or drain when in
ordinary use, and also when the catch-pit is emptied, as the second syphou remains
sealed during that operation:
Immediately over the lip I have an opening, with stopper, arranged so that access
is obtained to the second syphon through the gulley grate.
A connecting arm between the sewer or drain side of the syphon, and the body
of the gulley is sometimes placed, with an additional opening for easy access to the
sewer or drain.
I thus construct a gulley with few movable, parts, having receptacles for road
grit, and a lip to prevent its passing into the sewer, with a double trap, to prevent
the passage of sewer gases.
It is obvious that a movable receptacle may be placed inside the body part of
the gulley, to catch the solids, which could be lifted out when desired.
It is also obvious that when the connecting arm between the sewer side of the
syphon and the budy of the gulley is dispensed with, a 'stopper may be placed on.
the sewer side of the syphon for access to the sewer.
Dated this First day of January 1895.
Alrav

page_text: WILLIAM WARNER Civil Engineer Hope Drive The Park Nottingham
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:
Numerous gulleys have been introduced for taking water from streets and yards
also from waste pipes but difficulties have been experienced in the design and
manufacture of a gulley to prevent the escape of sewer gases into the atmosphere
and to stop solids from passing into the sewer or drain, combined with easy means
of cleansing.
The object of this invention is to overcome these difficulties.
This invention consists of a double trapped gulley constructed in suitable material
or the principal features may be made in potteryware, iron or brickwork or with
certain parts of each material.
The body part forming the catch pit may be made in any convenient shape,
finished at the surface with the usual grate and frame, but sufficiently deep to allow
deposit of solids such as road grit and having a branch pipe on the side made to
form a lip to prevent the passing of the solids into the sewer and also forming a
single syphon. The branch pipe is continued similar to a syphon bend thus
obtaining a double syphon or trap and preventing gases passing from the sewer or
drain when in ordinary use and also when the catchpit is emptied as the second
syphon remains scaled during that operation.
Immediately over the lip I have an opening with stopper arranged so that access
is obtained to the second syphon through the gulley grate. A connecting arm
between the sewer or drain side of the syphon and the body of the gulley is
sometimes placed with an additional opening for easy access to the sewer or drain.
I thus construct a galley with few moveable parts having receptacles for road
grit and a lip to prevent its passing into the sewer with a double trap to prevent
the passage of sewer gases.
It is obvious that a moveable receptacle may be placed inside the body part of the
gulley to catch the solids, which conld be lifted out when desired. It is also obvious
that when the connecting arm between the sewer side of the syphon and the body
of the galley is dispensed with, a stopper may be placed on the sewer side of the
syphon for access to the sewer.
My invention is represented in section on the accompanying drawings.
Figure 1 represents ny improved double trapped gulley 'made with receptacle in
one piece.
Figure 2 represents the trap portion made separate and jointed to the receptacle.
Figure 3 represents the trap portion built into a receptacle fornted in brickwork.
In all figures like letters represent similar parts, a is the body part forming the
receptacle for dirt, is an ordinary gulley grate and frame, e is a lip to form in
combination with the lip d, the first trap out of the gulley receptacle, e is another
lip forming in combination with the raised portion f, the second trap out of the
gulley receptacle, g is a pipe connecting the gulley and traps to the sewer.
Access
to the sewer is obtained by removal of the cover h, and access to the first and second
trap is obtained by removal of the cover j.
In Figure 2 a joint is made between the double trap and the body part by a
socket shown at k, in Figure 3 a joint is made between the double trap and the body
part by the brickwork at l.
When in use the receptacle may fill with dirt and road grit without passing into
the sewer by reason of the syphons formed by the lips cde and raised part
when the receptacle is emptied the first syphon or trap may be emptied without
and

page_text: disturbing the second syphon or trap, thus the escape of gases from the sewer 15
prevented during this operation.
The covers and h may be made air-tight by cement, m's represent the surface
of the water when in use.
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. I do claim the double trap in combination with a receptacle as shown
and specified.
Dated this 25th day of September 1895.
WILLIAM WAKNEK.