Improvements in Automatio Ball Valves.
Year: 1892

page_text: Date of Application, 29th June, 1892-Accepted, 30th July, 1892
COMPLETE SPECIFICATION.
Improvements in Automatio Ball Valves.
I RICHARD GARRATT of 68 Chesterfield Road Sheffield Derbyshire in the
County of Derby Plumber 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:—
The chief feature of this invention is in being able to repair the seat of the ball
valve attached to cisterns used for various purposes, in being able to remove such
seat and repair it, without disturbing the body of the valve.
In the construction of this invention I form in the tap almost opposite to the
supply from the main a circular chamber into which the water is received, the
bottom of which is fitted a seating screwed thereto having washer and is bored for
outlet.
At the bottom of the piston and under the flange working in the cylinder is fitted
a washer securely held in position by means of a screw, which washer acts upon the
said seat before mentioned.
The circumference of the body of the piston is less than at its base, which thus
forms the said flange to which the said bottom washer fits to.
Placed on the top of the piston is an inverted L shaped washer of an almost
indestructible material and is securely held in position by a screwed ring which
serves as a guide and is screwed to the top of the cylinder.
Cast on the front of the valve is a bracket through which the arm of the ball is
pivotted, the end of the said arm working in a slot in the top part of the piston.
In carrying this invention into effect, when the cistern is empty the ball drops
therein, the action of which lifts the piston and opens the connection from the main
to the outlet and allows the water to flow and supply the cistern, the ball rising
with the water eventually lowers and closes the connection from the main to the
supply bringing the washer secured to the underside of the piston in contact with
the seat of the valve.
Owing to the piston fitting easily the water passes from the main between the
piston and the walls of the cylinder, and exerts its influence by pressure on the said
flange thereof, thus causing and assisting the valve to close.
As the water from the cistern is withdrawn the weight of the ball is sufficient to
overcome the pressure of the supply from the main, thus causing the valve to open
with ease.
The accompanying drawings illustrate my invention.
Fig. 1 is a section in elevation shewing supply and inlet A and outlet B, also
ball C, arm to ball D. bracket and pivot E, and alot F in top of piston G which is
guided through cylinder of valve H, and is secured by means of top screwed ring I
under which is placed inverted L shaped washer J, together with flange K situated
at the bottom of piston G which has secured thereto by means of a screw La
washer M which washer fits closely upon the seat N which seat is removable for the
purpose of repairing by means of a screw nut and washer as illustrated in the
accompanying drawings, O is shewing a circular chamber into which the water is
received.
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 :-
Improvements in automatic ball valves, in being able to automatically open or
close the supply from the main to the cistern by means of the flange fixed at the

page_text: allow the required quantity of liquid to pass on to its upper side and exert its
pressure on the said flange, and so dispense with friction and materially assist in
the ball doing its work as hereinbefore specified described and as particularly
illustrated by the accompanying drawings.
Dated this 24th day of June 1892
RICHARD GARRATT,
Applicant.