Improvements in Ball or Float Valves.
Year: 1898

page_text: We, FREDERICK SANSOM THORN and CHARLES HODDLE, both of No. 1, Tothill
Street, Westminster, S.W., Acetylene Gas Engineers, do hereby declare the nature
of this invention to be as follows:-
This invention has reference to the construction of valves for gas or water
controlled by balls, or floats, actuated by a rising or falling movement of water
or gasholder and has for its object the providing a means whereby the valves can
be quickly opened or closed when working under low pressures without danger
of the valve refusing to leave its seating.
For this purpose we provide a bent pipe having a valve seating at its upper
end and an ordinary connection at its lower end for pipe attachment. About
the middle of this bent pipe is a hinged joint to which is connected a casting
containing a plug of indiarubber or other suitable material. To this casting is
fixed the ball or float. When the ball or float moves upwards it raises the casting
until the plug comes into contact with the valve seating and stops the flow of
gas or water through the opening. When the ball or float falls the plug is at
once drawn away and the valve opened.
FREDERICK SANSOM THORN.
CHARLES HODDLE.
Improvements in Ball or Float Valves.
We, FREDERICK SANSOM THORN and CHARLES HODDLE, both of No. 1, Tothill
Street, Westminster, in the County of London, Acetylene Gas Engineers, 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 has reference to the construction of valves for gas or water
controlled by balls or floats actuated by a rising or falling movement of water
or gasholder and has for its object the providing a means whereby the valves can
be quickly opened or closed when working under low pressures without danger
of the valve refusing to leave its seating.
For this purpose we provide a bent pipe having a valve seating at its upper
end and an ordinary connection at its lower end for pipe attachment. About
the middle of this bent pipe is a hinged joint to which is connected a casting
containing a plug of indiarubber or other suitable material. To this casting is
Die 77

page_text: fixed the ball or float. When the ball or float moves upwards it raises the casting
until the plug comes into contact with the valve seating and stops the flow of
gas or water through the opening. When the ball or float falls the plug is at
once drawn away and the valve opened.
In the accompanying drawings:
A is a lever having an arm or branch B rigidly fixed to it or forming a part of
it. Such arm or branch may be situated on either side of the fulcrum or hinged
joint C at a point on the lever best suited to the design of valve to which it is
applied.
1
D is a plug or disc of indiarubber or any other suitable material connected with
the rigid arm or branch B by any suitable means or fitted into a recess in
same so as to be easily renewed when required.
E is a pipe or casting through which the gas or fluid passes by means of the
passage F which casting may be fitted with any ordinary connection at G and
has an opening and valve seating H formed at the end of the passage F.
Figure 1 shows a design of valve in which a shield J for directing the flow
of fluid issuing from the valve opening forms a part of the rigid arm or branch B.
Figure 2 shews a design of valve in which the shield J forms a part of the cast-
ing E. The method of controlling the valve opening which we adopt applies to
any valve for gas or fluid which is actuated by means of a lever. The action is
as follows:
The movement of the lever A about its fulcrum C brings the plug or disc D
on the rigid arm or branch B into contact with the valve seating H to close the
passage For removes it therefrom to open the same. Where the valve is used
for gas the shield J is not required and may be dispensed with without departing
from the purpose of this invention.
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. In valves for controlling the flow of gas, water or any fluid which are
actuated by a lever moved by a float or other means, the employment of a lever
having an arm or branch rigidly fixed thereto, or forming a part of such lever,
and fitted with a pad or disc of suitable material. substantially as and for the
purpose hereinbefore described and shewn on accompanying drawings.
2. In valves for controlling the flow of gas, water or any fluid which are
actuated by a lever moved by a float or other means, the combination of a lever,
having a rigid arm or branch fixed thereto or forming a part of such lever, with
a pad or disc of suitable material and a pipe or hollow casting through which gas
or fluid may flow as and for the purpose herein before described and shewn on the
accompanying drawings.
Dated the 5th day of Sentember 1800.