An Improved Vent and Shut off Apparatus for Shutting off Water from Supply Pipes and for Preventing Sediment and other Impurities Flowing from a Cistern into the Service Pipe.
Year: 1888

page_text: An Improved Vent and Shut off Apparatus for Shutting off Water
from Supply Pipes and for Preventing Sediment and other
Impurities Flowing from a Cistern into the Service Pipe.
We JAMES COSGREAVE of 40 Kensington Place, Kensington in the County of
Middlesex, Artist and Louis MOREY of 31 Beaufoy Road, Battersea in the County
of Surrey Registered Plumber, 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:-
The object of this invention is to at any time shut off water from service pipes and
also to prevent sediment and other impurities passing from the cistern into the
service pipe and if desired may be provided with a filtering apparatus of any suitable
construction or with any suitable filtering medium so as to further purify the water
passing into the service pipes, the said invention being specially applicable for service
pipes upon which valve taps are fitted in which case it is further designed to prevent
the rumbling sound occasioned by the air when the said valve taps are shut off.
The invention is intended to stand vertically within a cistern and is affixed to the
service pipe by means of a tube with a conical shaped and screw-threaded or other-
wise for the purpose. This tube is in communication with a perforated globular, or
other shaped chamber, the upper end of which is in communication with a second
tube open at the top to allow the oscape of air, tho said tube being protected by a cap
over the vent to keep out dust.
The upper tube is provided with a rod carrying a screw-down valve for the purpose
of shutting off the water from the lower tube when desired.
And in order that our invention may be more fully understood and carried into
practice we will now proceed to describe the same with reference to the accompanying
drawings in which similar letters indicate corresponding parts in all the Figures.
Figure is an elovation of our invention.
Figure 2 is a sectional elevation, and
Figure 3 is a plan of the same; but we do not restrict ourselves to the form shown
in the drawings.

page_text: •
The invention is constructed such a height that when fixed the upper part A.
thereof is above the high water mark of the cistern.
The conical end B of the tube C is placed within the servico outlet and may be
provided with a screw thread for that purpose if required...
The other end of the tube C projects within the chamber D and is provided with a
valve seating E. The chamber D is perforated either wholly or in any convenient
part or parts. An upper tube F is led from the chamber D and any suitable number
of air vents G are made in the top A thereof (See Figure 3).
A
A rod H carrying a ball or conical valve J screws through the top A of the tube F
and is fitted with a hand wheel or other device K for quickly turning the same.
suitable guide for the rod H is placed within the tube For the chamber D or in both
as desired.
Where it is inconvenient to actuate the rod II from the top of the cistern the said
rod H may be connected by any suitable means, to a hand wheel or other device for
actuating the same placed in any convenient locality.
When the valve is open as shewn in Figure 2 the water from the cistern passes
through the perforations into the chamber D and from thence through the tube
the service pipe.
into
Any suitable filtering apparatus or medium may be placed within the chamber D
and the water made to pass therethrough before entering the tube C...
Should any air accumulate in the service pipe it will rise through the chamber D
and escape by the vents G and so obviates the rumbling sound usually arising from
the air imprisoned by quickly shutting off valve taps.
Having now particularly described and ascertained the nature of our said invention
and in what manner the same is to be performed we declare that what we claim is :-
(1) The construction of a chamber D with tubes and screw valve J and
rod H substantially as and for the purpose set forth and illustrated in the accompanying
drawings.
(2) The combination with the apparatus described in claim 1 with any suitablo
filtering apparatus or medium placed within the chamber D substantially as and for
the purpose hereinbefore set forth and illustrated in the accompanying drawings.
Dated this 6th day of November 1888.