IMPROVEMENTS IN BALL VALVES FOR CISTERNS
Year: 1884

page_text: I, CARLOS MANUEL PAULINO LAFIT of Brighton in the County of Sussox,
Engineer, do hereby declare the nature of my said invention for "IMPROVEMENTS
IN BALL VALVES FOR CISTERNS" to be as follows:-
These Improvements relate to the construction of ball valves fitted with an extra
stop or regulating valve for regulating the flow of the water or other fluid or for
shutting it off altogether.
In the Specification of a Patent granted to George Osborne dated 13th May 1881
and numbered 2087, is described an arrangement whereby a small regulating valvo
is fitted in inlet of tap; said regulating valve being attached to a screw spindle
passing through a stuffing box on upper side of tap. By the use of this small
regulating valve the flow of water is regulated or shut off before reaching the main
valve.
This my Invention provides a Ball Valve fitted with stop or regulating valve,
which is simple in construction, durable, and effective, and moreover produced at
considerably less cost than the regulating ball valves above described.
In Ball Valves constructed according to this my Invention I make the delivery
nozzle at the lower side of tap and fit the main valve in said delivery nozzle and
connect to it the spindle for turning on or off: In front end of tap I fit a screw
plug or valve for regulating the pressure or shutting off supply. This regulating or
stop valve when closed rests upon a seating formed in tap upon inlet side of
delivery nozzle, thus shutting off the supply of water or other fluid before it
reaches the main valve. Thus, should it need repairs the main valve may be
withdrawn without having to close the main stop tap, which often causes great
inconvenience to all other supplies in the house or building.
A great saving of labor and consequently economy are effected in constructing
taps according to this my invention, as the necessary screwings upon outside of
inlet end of tap and upon the inside of front end of tap may be done at one setting
in the lathe, whereas the Ball Valves described in the Specification of the patont
aforesaid require setting for the screwing of inlet end of tap and then to be taken
out of lathe and reset for the screwing of stuffing box which is placed at an angle"
with the tap.
Dated this 28th day of May 1884.
'

page_text: I, CARLOS MANUEL PAULINO LAFIT of Brighton in the County of Sussex,
Engineer do hereby declare the nature of the said- invention for "IMPROVEMENTS
IN BALL VALVES FOR CISTERNS" and in what manner the same is to be performed,
to be particularly described and ascertained in and by the following statement
reference being had to the accompanying sheet of Drawings and to the letters and
figures marked thereon, that is to say :-
These improvements relate to the construction of ball valves fitted with an extra
stop or regulating valve for regulating the flow of the water or other fluid or for
Bhutting it off altogether.
In the Specification of a Patent granted to George Osborne dated 13th May 1881 1
and numbered 2087, is described an arrangement wherein an additional regulating
or stop valve is fitted in the inlet passage of a tap or ball valve; the said additional
regulating or stop valve being connected with a screw spindle passing through a
stuffing box on the upper side of the tap or ball valvo. By the use of this
additional regulating, or stop valve the flow of water or other liquid may be 1
regulated or shut off entirely before reaching the main valve.
The object of my present invention is to provide a ball valve (fitted with an
additional or supplementary stop or regulating valve) which shall be simple in
construction, durable and effective, and capable of being produced at considerably
less cost than the ball valves, with additional regulating or stop valves, described
in the Specification of George Osborne's Patent aforesaid.
The sheet of Drawings hereto annexed illustrates a ball valve constructed in
accordance with my invention, Figure 1 being a side clevation, Figure 2 a
longitudinal sectional elevation and Figure 3 an underside view of the lower end
of the nozzle and main valve guide stem. mako the delivery nozzle A preferably
at the lower side of the valve case B, and more or less nearly at right angles thereto
and I fit the main valve C in the said delivery nozzle A. The ball lever D is pin
jointed at E to lugs F formed on the delivery nozzle A, and passos through a slot G
in the guide stem G of the main valve C for the purpose of closing and opening
the latter as the ball D' rises and falls. In the front end of the valve case B I fit
the screw plug or valve H for regulating or shutting off the supply. This regulating
or stop valve H when closed rests upon a seating I formed in the valve case Bat
the end of the inlet passage J, thus shutting of the supply of water or other liquid
before it reaches the main valve C. Figure 3 shows how the main valve guide
stem G¹ is grooved at the sides to allow of the passage of the liquid past it when
the main valve C is open.
When the main valve C or its seat K needs repairs the additional valve H
is closed against its seat I and the valve C can be withdrawn without the necessity
of closing the stop cock on the water main, which often causes great inconvenience
to all other supplies in the house or building. By constructing ball valves in
accordance with my invention considerable saving of labour and consequent
economy is effected, as the necessary screw cutting on the outside of the inlet end
and on the inside of the front end of the valve case may be effected at one setting
in the lathe, whereas ball valves constructed as described in the Specification of
George Osborne's Patent aforesaid require to be set for the screwing of the inlet
end of the valve, and then to be taken out of the lathe and reset for screwing the
stuffing box, which is placed at an angle with the valve case.
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 I do not

page_text: claim generally the use of an additional regulating or stop valve in ball valves for
the purpose of regulating the supply to the main valve or for shutting off the
supply wholly therefrom as I am aware that such use is not novel, but that what
I claim is :-
In a ball valve with a supplementary stop valve for the purpose of regulating or
shutting off the supply to the main valve, the arrangement of the said
supplementary stop valve opposite to and in line with the inlet passage, the
main valve being adapted and arranged to work in the delivery nozzle
placed more or less at right angles to the axial line of the supplementary
stop valve and inlet passage, as hereinbefore described, and illustrated in
the Drawings hereto annexed.