Improvements in Sewer Gullies for Roadways.
Year: 1892

page_text: Date of Application, 12th Nov., 1892
Complete Specification Left, 8th June, 1893-Accepted, 8th July. 1893
PROVISIONAL SPECIFICATION.
Improvements in Sewer Gullies for Roadways.
We, EUGEN BINDEWALD, Town Engineer, and ACHILLES TEINTURIER, TOWD
Civil Engineer both of Kaiserlauten, Germany, do hereby declare the nature of
this invention to be as follows:-
This invention relates to an improved construction of trapped sewer gully for
roadways whereby such gullies are made to communicate with the water supply for
flushing purposes.
The sewers and drains have hitherto been flushed by damming up the dirty water
flowing along the gutters into the inspection shafts and then by opening a slide or
sluice allowing the stored water to flow through the drains and sewers so as to carry
with it any solid matter that may have been deposited therein. The disadvantages
of such a flushing with dirty water are well known to experts; in particular may
be mentioned that the micro organisms and products of decomposition adhering to
the walls of the gullies, causing the production of deleterious sewer gases, remain
entirely untouched by such a method of flushing. In consequence of this it was
necessary to effect the thorough cleansing and disinfecting of the gullies at com-
paratively short intervals of time, causing considerable expenditure of time and
money, and requiring to be effected with great care if the operation was to be
effective.
According to our present invention we not only obviate this defect but also
prevent the adhesion of such deleterious matters in the first instance by introducing
a fresh water supply into the traps of the gullies for flushing purposes so as not
only to remove any deposited matter therein but also to effectually cleanse the
sides of the gulley so as to obviate the necessity of any disinfecting operations.
For this purpose the water supply mains are connected to the bottom of the
gulley trap by means of a branch pipe provided with a cock or valve, so that on
opening the latter the water supply will enter the gulley in a strong vertically
upward directed current from the bottom of the siphon trap, whereby such water is
made, not to flow directly down the outlet of the siphon trap into the sewer, but to
rise up in the gulley so as to effectually wash the walls thereof, only flowing off in
a body after the supply has been cut off again, and in thus rushing down the gulley
and through the drain into the sewer it is made to carry down with it all dirt and
adhering matter.
The gulley is for this purpose by preference constructed as follows. At top, on
a level with the roadway or gutter, is provided a box closed at top by a cover
and having a side opening communicating with the gutter, for the entrance of the
rain water.
A chamber or pocket is formed at such entrance, in which is retained the heavier
solid matters carried in by the rain water, holes being provided in the pocket for
the water to flow off into the shaft of the gulley. At the bottom of this is fixed a
siphon trap, having at the lowest point of its bend the before mentioned branch
pipe communicating with the water main. On opening the supply, the water will
rush in a vertical jet upwards into the gulley shaft, striking against the inner
surface of the cover and falling back into the shaft so as to fill the same under
continued turbulent motion. When the valve is closed again, the whole column of
water in the gulley shaft will rush down through the siphon and into the sewer,
which will be more effectually flushed thereby than by the damming of the rain
water as heretofore.
The heavy solid matter retained in the pocket of the gulley will also be

page_text: effectually washed clean by the upward rush of the water, and can afterwards be
ladled out on opening the cover.
Dated this 12th day of November 1900.
ABEL & IMRAY,
Agents for the Applicants.
COMPLETE SPECIFICATION.
Improvements in Sewer Gullies for Roadways.
We, EUGEN BINDEWALD, Town Engineer, and ACHILLES TEINTURIER, Town
Civil Engineer, both of Kaiserlauten, Germany, 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 an improved construction of trapped sewer gulley for
roadways wherein such gullies are made to communicate with the water supply for
flushing purposes.
The sewers and drains have hitherto been flushed by damming up the dirty water
flowing along the gutters into the inspection shafts and then by opening a slide or
sluice allowing the stored water to flow through the drains and sewers so as to
carry with it any solid matter that may have been deposited therein. The dis-
advantages of such a flushing with dirty water are well known to experts; in
particular may be mentioned that the micro organisms and products of
decomposition adhering to the walls of the gullies, causing the production of
deleterious sewer gases, remain entirely untouched by such a method of flushing.
In consequence of this it was necessary to effect the thorough cleansing and dis-
infecting of the gullies at comparatively short intervals of time, causing considerable
expenditure of time and money, and requiring to be effected with great care if the
operation was to be effective.
According to our present invention we not only obviate this defect but also
prevent the adhesion of such deleterious matters in the first instance by introducing
a fresh water supply into the traps of the gullies for flushing purposes so as not
only to remove any deposited matter therein but also to effectually cleanse the sides
of the gulley so as to obviate the necessity of any disinfecting operations.
For this purpose the water supply mains are connected to the bottom of the
gulley trap by means of a branch pipe provided with a cock or valve, so that on
opening the latter the water supply will enter the gulley in a strong vertically
upward directed current from the bottom of the siphon trap, whereby such water is
made, not to flow directly down the outlet of the siphon trap into the sewer, but to
rise up in the gulley so as to effectually wash the walls thereof, only flowing off in
a body after the supply has been cut off again, and in thus rushing down the gulley
and through the drain into the sewer it is made to carry down with it all dirt and
adhering matter.
The gulley is for this purpose by preference constructed as shewn in vertical
section in the accompanying drawings. At the top of the shaft R on a level with
the roadway or gutter, is a compartment closed at the top by a cover D and having
a pocket S with an opening communicating with the gutter, for the entrance of the
rain water.
The pocket S retains the heavier solid matters carried in by the rain water,
holes L being provided for the water to flow off into the shaft R of the gulloy.
At the bottom of this is fixed a siphon trap T having at the lowest point of its
bend the branch pipe W communicating with the water main. On opening the
cock or valve V the water will rush in a vertical jet upwards into the gulley shaft,
striking against the inner surface of the cover and falling back into the shaft so as
to fill the same and keep the contents in continued turbulent motion. When the
valve Y is closed again, the whole column of water in the gulley shaft will rush
down through the trap and into the sewer, which will be more effectually flushed

page_text: thereby than by the damming of the rain water as heretofore. The heavy solid
matter retained in the pocket of the gulley will also be effectually washed clean
by the upward rush of the water, and can afterwards be ladled out on opening the
cover.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
:-
1. A sewer gulley in which the simultaneous removal of the impurities
accumulated in the siphon and the effectual flushing of the walls of the gulley and
adjacent portion of the sewer or drain is rendered possible by means of a
communication between the lower end of the gulley and the water main, which
communication, on opening a cork or valve admits a flow of water from the main in
the reverse direction through the siphon and in a vertically upward direction in the
gulley substantially as described.
2. A sewer gulley consisting of a covered upper compartment with a side pocket,
a vertical shaft and a siphon trap having its bottom connected to the water main,
substantially as and for the purpose set forth.
Dated this 8th day of June 1893.
ABEL & IMRAY,
Agents for the Applicants.