A Self Acting Stop Valve to Prevent the Flow of Water on the Removal of any Pipe, Cock, Tap, Valve, or other like Appliance.
Year: 1890

page_text: Date of Application, 17th July, 1890
Complete Specification Left, 17th Apr., 1891-Accepted, 6th June, 1891
PROVISIONAL SPECIFICATION. -
A Self Acting Stop Valve to Prevent the Flow of Water on the
Removal of any Pipe, Cock, Tap, Valve, or other like Appliance.
I JOSEPH THOMAS HARRIS of Welby House Lansdown Hill, West Norwood
in the County of Surrey Engineer do hereby declare the nature of this invention to
be as follows:
This invention relates to the flow or passage of water steam gas or other fluid
through pipes and the object of the invention is to provide means which on the
removal or disconnection of a pipe cock, valve, tap or the like appliance therefrom
shall cause the automatic closing of a valve so that the flow or passage of the water
steam, gas, or fluid aforesaid is stopped.
To this end the invention consists in a selfacting stop valve the essential features
of which are a movable valve in the valve body adapted to be held from its seat by
the inserted end of the pipe valve cock or the like and to be automatically pressed
upon its seat, by the force of the fluid or by spring pressure or by both upon the
removal of the inserted pipe, valve, cock, &c.
A valve is
This invention may be embodied in the following construction.
guided longitudinally in a chamber having an opening with a socket for its attach-
ment to a pipe or nozzle. One end of the chamber is provided with an opening to
receive the spigot or end of pipe, cock, tap or device. The stem of the valve or
an equivalent projection thereon or part thereof is located in or near the latter
opening in the chamber in such a way that when the pipe end, spigot, or tail screw
of the said pipe, cock tap or device is screwed or thrust into the opening in the stop
valve chamber it opens or forces back the valve therein contained to the necessary
distance to allow of a full passage equal to the bore of the supply pipe
more or less as required, and on the removal of the pipe end or equivalent and
before it leaves the socket a pressure of the fluid assisted or not by a spring whose
other end rests on the back of the stop valve body, forces the stop valve into its
seat and thus closes it and permits the passage of fluids while the pipe end or cock,
tap, valve or other like appliance is removed or out of place.
Dated this 17th day of July 1890.
HERBERT & Co.,
Agents to Applicant.
COMPLETE SPECIFICATION.
A Self Acting Stop Valve to Prevent the Flow of Water on the
Removal of any Pipe, Cock, Tap, Valve, or other like Appliance.
I, JOSEPH THOMAS HARRIS, of Welby House, Lansdown Hill, West Norwood,
in the County of Surrey, Engineer, 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 the flow or passage of water, steam, gas or other fluid
through pipes and the object of the invention is to provide means which on the
removal or disconnection of a pipe, cock, valve, tap or the like appliance therefrom
shall cause the automatic closing of a valve so that the flow or passage of the
water, steam, gas or fluid aforesaid is stopped.
To this end the invention consists in a self acting stop valve, the essential features
of which are a movable valve in the valve body adapted to be held from its seat
by the inserted end of the pipe, cock, nozzle or the like and to be automatically
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page_text: pressed upon its seat by the force of the fluid or by spring pressure or by both upon
the removal of the inserted pipe, valve, cock; nozzle or equivalent.
This invention may be embodied in the following construction. A valve is
carried by a screw thread in the valve chamber having an opening with a socket for its
attachment to a pipe or nozzle. One end of the valve is provided with an opening
to receive the spigot or end, of pipe, cock, nozzle, tap or device which forms the
second part of the connection. The stem of, the valve or an equivalent projection
thereon or part thereof is located in or near the opening in the chamber in such a
way that when the pipe end; spigot or tail' screw of the said pipe, cock, tap, nozzle,
device &c., is screwed or thrust into the opening in the stop valve chamber, it opens
or screws back the valve therein contained, to the necessary distance to allow of a
full passage equal to the bore of the supply pipe more or less as required.
On removing the pipe end nozzle or equivalent, and before it leaves the socket
it forces the stop valve into its seat and thus closes it and prevents the passage of
fluids while the pipe end, or cock, tap, nozzle, valve or other like appliance, is
removed.
The accompanying drawing illustrates several forms of self, closing valve
constructed according to this invention.
Fig. 1 is a longitudinal section through the valve a and valve case. b and Fig. 2
is a similar section through a nozzle c which by being screwed into the end d of the
valve case b forces the valve a from its seat against the pressure of the spring e and
uncovers the port or passage a for the flow of liquid to the nozzle c.
Fig. 3 is a plan view of the nozzle c.
Figs. 4, 5 and 6 show other forms of valve case but of the same general
construction.
Fig. 7 shows a spigot pipe f connected to the valve case by an external screw
which serves to operate the valve a from its seat.
union
Fig. 8 shows the valve pillar h screw threaded to engage in screw threads.cut.in
the guiding sleeve j of the valve case; the end of the valve pillar is made with
projections or recesses and the end of the screw threaded spigot intended to
operate the valve is provided with corresponding recesses or projections.so that, by
the action of screwing the spigot into the valve case the valve is unscrewed and
thus lifted from its seat and by the reverse action of unscrewing the spigot the valve
is again screwed down on its seat.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
A self-acting,stop valve which is removed from its seat by the presence of a pipe
or the like when connected and replaced thereon by removal of said pipe or the like
as herein described and illustrated.
HERBERT & Co.,
18, Buckingham Street; Strand, London, W.C., Agents for the Applicant: