An Improved Valve for Cisterns and the like.
Year: 1890

page_text: Date of Application, 19th Nov., 1890
Complete Specification Left, 25th May, 1891-Accepted, 27th June, 1891
PROVISIONAL SPECIFICATION.
An Improved Valve for Cisterns and the like.
I, JOHN MAY, of Smarts Hill, Penshurst, in the County of Kent, Builder, do
hereby declare the nature of this invention to be as follows:-
My invention relates to an improved valve for cisterns and the like, which con-
sists of a valve for shutting off water in service cisterns, to allow the pipes to be
emptied for repairs, or as a precaution against any damage in frosty weather. The
valve is constructed with an air inlet which also forms the guide or fixing bar
attached to a valve, this said valve shuts or drops down on the opening or other
seating the valve is provided with a weight on the top so that the valve will shut
or close the opening by the weight. At the end of the air tube is situated above
the water line a wire or trigger pull for the purpose of raising the valve, this said
valve being placed inside a suitable perforated chamber or guide box, with a
cylindrical mouth through which the air tube slides, and fixed in two halves and
bolted together on a portion of the top of box, so that the washer of the valve may
be renewed at any time by removing the screws and taking off the two halves or
clips, when the valve can be lifted out from either side.
Where a cistern is open to view no wire is required as the valve may be kept up
by a movable collar (to be slipped off when wire is used), which has a short stud
on one side and a set screw on the other to form a rest on the arms, these said arms
are hollow on the top side to keep the valve from slipping off. But when required
to be closed I lift the valve slightly by the air tube and give it a quarter turn and
it will go down on its seating.
The advantages of my invention are that they can be fixed to old or new fittings;
that when open it does not obstruct the flow of water; nor will the valve be choked
with deposit, or the air be drawn down the pipes, as the air pipe is not connected
until the valve is down.
It will be understood that the foregoing is given by way of illustration only, and
that the shapes, materials and proportions of the various parts may be varied in
many ways within the scope of my invention.
Dated this 19th day of November 1890.
J. P. BAYLY,
18, Fulham Place, W., Agent for the Applicant.
COMPLETE SPECIFICATION.
An Improved Valve for Cisterns and the like.
I, JOHN MAY, of Smarts Hill, Penshurst, in the County of Kent, Builder, 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:-
My invention relates to an improved valve for cisterns and the like, which con-
sists of a valve for shutting off water in service cisterns, to allow the pipes to be
emptied for repairs, or as a precaution against any damage in frosty weather.
The
valve is constructed with an air inlet which also forms the guide or fixing bar
attached to a valve, this said valve shuts or drops down on the opening or other
seating the valve is provided with a weight on the top so that the valve will shut
or close the opening by the weight.
}
At the end of the air tube situated above the water line is the connection for a
wire or trigger pull for the purpose of raising the valve, this said valve being

page_text: placed inside a suitable perforated chamber or guide box, with a cylindrical mouth
through which the air tube slides, screwed together on a portion of the top of box,
so that the washers of the valve may be renewed at any time by removing the
fittings when the valve can be lifted out.
Where a cistern is open to view no wire is required as the valve may be kept up
by a short stud pin working in a bayonet slot to keep the valve from slipping off.
But when required to be closed 1 lift the valve slightly by the air tube and give it
a quarter turn and it will go down on its seating.
The advantages of my invention are that they can be fixed to old or new fittings
that when open it does not obstruct the flow of water, nor will the valve be choked
with deposit, or the air be drawn down the pipes, as the air pipe is not connected
until the valve is down.
I attain these objects by the illustrations in the accompanying drawing, in
which―
Fig. 1 is a vertical section of the valve;
Fig. 2, is a vertical section of a ground in plug valve, this fig. is broken off.
Similar letters refer to similar parts throughout the views.
I construct my invention of a metallic substance, preferably with a box or
chamber a perforated with openings attached to the base plate and projecting
mouth t. The base is drilled and tapped at u so as to connect the pipe to a closet
or elsewhere. To the mouth I place a valve v with an opening a this said opening
being directly in communication with the open air, as indicated by the dotted
lines cc in Fig. 1. The tube is shown broken off. To the plug or valve v I fix
the air tube and above the said valve I place two washers, one of india rubber 7,
and the other of metal p with a weight o. The air tube is provided with a stud
pin m which works in a bayonet slot in the slide or stuffing box . To the slide
box I attach an india rubber washer and the upper cylinder with a cap d at the
top. At the upper part of the air tube i is formed a flange g and above the said
flange I place a coil spring enclosed in an india rubber tube e. The eyelet cap a
is screwed on to the air tube i after the cap and the other portions are fitted
together.
In Fig. 2, I construct my apparatus with a ground in plug valve " with a
perforated plug v₁; this said valve is ground in to the seating .
It will be understood that the foregoing is given by way of illustration, and that
the shapes, materials and proportions of the various parts may be varied in many
ways within the scope of my invention.
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 :-
1. The combination of the apparatus with the valve for shutting off water in
service cisterns, substantially as herein described and according to Fig. 1, in the
accompanying drawing.
2. The combination of the apparatus with the ground in valve for supplying
water or for shutting off water in service cisterns, substantially as herein described
and according to Fig. 2, in the accompanying drawing.
3. The combination of the apparatus with the air inlet, substantially as herein
described and for the purpose set forth.
J. P. BAYLY,
18, Fulham Place, W., Agent for the Applicant.