METHOD OF PREVENTING TOWN'S WATER SUPPLY FROM BEING CONTAMINATED BY THE ENTRANCE OF SEWERAGE OR FOUL GASES INTO THE PIPES
Year: 1884

page_text: I CHARLES RIDEALGH of 14 Gilsland St. Millfield, Sunderland in the County
of Durham Engineer do hereby declare the nature of my invention for IMPROVED
METHOD OF PREVENTING TOWN'S WATER SUPPLY FROM BEING CONTAMINATED BY
THE ENTRANCE OF SEWERAGE OR FOUL GASES INTO THE PIPES, to be as follows:-
This invention has reference to preventing contamination of Town's water with
sewerage & foul gases from urinals, water closets, sinks or other places, by being
sucked into the pipes by the vacuum formed at the highest level through the
water being drawn off at a lower level when the water supply is temporary shut
off for repairs or other purposes.
Is as following betwixt the main water pipes or branches thereof & each
& every outlet or tap, urinal or water closet, I fix a single or double non return
check valve to prevent anything being sucked into said pipes.
Having checked all outlets I now ventilate with as pure air as can he got in
the vicinity of the highest level of the above said pipes by fixing a hollow column
similar to and as lamp posts are generally fixed, & then connecting the main or
branch water pipe with the said column with a pipe to convey pure air with a
self acting air valve betwixt the column & the said water pipe or the air pipe
may be taken up the side or end of a building with a self acting air valve fixed
in said pipe.
Dated this 8th day of March 1001

page_text: CHARLES RIDEALGH of 14 Gilsland Street Millfield Sunderland in the county
of Durham Engineer do hereby declare the nature of my invention for IMPROVED
METHOD OF PREVENTING TOWNS WATER SUPPLY BECOMING CONTAMINATED BY THE
ENTRANCE OF SEWERAGE OR FOUL GASES INTO THE PIPES and in what manner
the same is to be performed, to be particularly described and ascertained in and
by the following statement:-
This invention has referance to preventing contamination of Towns -water withe
sewerage and foul gases from urinals water closets sinks or other places being
sucked into the pipes by the vacaum formed at the highest level through the
water being at a lower level when the water supply is temporally shut of for
repairs or other purposes.
Is as following betwixt the main water pipes or branches thereoff and each and
every outlet or tap urinal or water closet I solder or otherwise fix a single or
double non return check valve to prevent any thing being sucked into the said
pipes.
Having checked outlets I now vent with as pure air as can be got in the
vicinity of the highest level of the above said pipes by fixing a hollow column
similar to and as lamp posts are generally fixed and then connecting the main or
branch water with the said column with a pipe to convey pure air, with a
selfacting air valve betwixt the column and the said water pipe or the air pipe
may be taken up the side or end of a building with a selfacting air valve fixed
in the said pipe.
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 fixing of an ordinary single or double nonreturn check valve betwixt
tho main water supply pipe and every urinal or water closet or other outlet.
2 The fixing in the streets of an hollow column in connection with an air inlet
valve.
3 The fixing of a pipe up the side or end of a building in connection with an
air inlet valve.
TT
1004