An Improved Ball or Float Cistern Valve.
Year: 1889

page_text: COMPLETE SPECIFICATION.
An Improved Ball or Float Cistern Valve.
I RICHARD MILL, of No. 5 Val Plaisant, Jersey, Dyer, 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 that class of ball or float cistern valves in which the water
is admitted to the reservoir or tank by the fall of the ball or float, and the supply or
passage of the water stopped-on the ascent of the float by virtue of the pressure of
the service water contained within the supply pipes from the main forcing the
valve which regulates the admission of water to the cistern-securely down on its
seating. The improved valve according to my Invention is readily adapted in
position and possesses amongst other advantages that of permitting ready access
being had thereto to facilitate repairs to the cistern or other parts without interfering
with or reducing the supply of water to other parts of the house or building.
In the accompanying drawing illustrative of my said Invention Figure 1 represents
a sectional elevation of the improved valve, Figure 2 an elevation of same, and
Figure 3 a transverse section on line A. B. Figure 1; referring to which A is the
valve casing, which is screwed into the termination of the service pipe B. (is the
ball or float. D the ball or float lever and d an extension of same. The casing A I
cut internally with a screw thread into which screws a socket E. A bridge piece a
supports a tube or boss b in which is arranged so as to be capable of free vertical
movement therein,. a spindle F to which the valve G for opening and closing the
passage of water from the service is adapted. The valve G is preferably ground
in its seating so as to render same water tight when closed, said valve being of brass,
gunmetal, or like suitable metal or metals. I cut the end of the spindle F with a
screw thread on which a nut c is adapted thus allowing of the ready detachment and
repair when necessary of the valve G. The float C and lever D may also be removed
by detaching the bolt e, split pin, or the like, (on which the lever is pivoted) from the
lugs I to enable repairs to be done to the cistern without shutting off the supply of
water from the main.
The action is as follows:-On withdrawing water from the cistern the level thereof
is diminished causing the float C to fall whereupon the free ond d of the lever D
forces up the spindle F and thereby raises the valve G from its seating to enable the
required amount of water to escape. Upon the float again rising with the level of
the water the free end d of lever D releases the spindle Fenabling same to fall again
into position and the valve G to be forced down on its seating by the pressure of the
service water until said spindle F and valve G are again raised on the level of water
in the cistern decreasing. The weight and size of the float C, which is composed of
metal, earthenware, glass or the like, would be in proportion to the amount of pressure
exerted on the valve G by the service water.
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 :-
In ball or float cistern valves wherein the pressure of the service water closes the
inlet orifice to the cistern, the combination with the casing A, socket E, bridge
piece a and tube or boss b of the spindle F and valve G substantially as herein set
forth.
Dated this Ninth day of August 1889.
JAMES STEVENSON,
Gray's Inn Chambers, 20, High Holborn, London, W.C., Agent for Applicant.