Ball-valve Tap for water, Beer, and the like.
Year: 1897

page_text: I, ARTHUR DAVID CURLING, The Orchards, Canterbury, Factor and Agent, do
hereby declare the nature of this invention to be as follows:-
.
A hollow cylinder closed at one end which is fitted with a screw. This screw,
when turned, advances or retires in a direction parallel to the length of the
cylinder, inside it and through its axis.
A ball is placed inside, in front of the screw, and to the unclosed end of the
cylinder a second shorter cylinder is screwed. The liquid enters a tap through
an opening in the free end of this additional cylinder. When the screw advances
the ball is forced against this opening & held in position by the screw behind
it. As the screw retires the liquid forces the ball back and escapes from the
spout.
When fixed the tap is in a horizontal position and the spout is in the bottom
of the longer cylinder.
Datal this 90th dor of Ontabor 1907
A. Ball-valve Tap for water, Beer, and the like.
I, ARTHUR DAVID CURLING, Factor and Agent, of "The Orchards," Canterbury,
in the County of Kent, 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 object of this invention is to provide an improved tap or valve for
regulating the flow of liquid, steam, vapours or gases through pipes or in dis-
charging from tanks, cisterns and the like.
In order that my invention may be more readily understood I have caused to
be attached hereto one sheet of drawings in which Fig. 1 is a section througb
the ball-valve tap.
A hollow casing A provided with a branch pipe or spout B is closed and fitted
at one end with a screwed spindle C operated by a hand wheel 1). If desired the
end A¹ of casing A may be screwed in and provided with a stuffing box and
gland for the spindle C in the usual well known manner.
Into the other end of casing, which may have the usual splayed face, is screwed
a second cylinder E one end of which forms the seating for the ball F. The
other end of cylinder E is prepared for attachment to a pipe or tank

page_text: as required. The inside end of screwed spindle C is formed with a hole G to
receive a loose fitting piece H which is formed into a cup at one end to suit ball F.
When the handwheel D is turned and the screwed spindle advances into the
casing A the cup of piece H is pressed against the ball F and holds it to the
seating, thus stopping the flow of the fluid through the valve.
As the screw retires the pressure of the fluid forces the valve from its face and
the fluid is enabled to escape.
When the casing A is removed the seating E can readily be repaired or cleaned
and when worn out another seating and inlet piece can easily be put in.
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
1. In ball-valve taps the renewable seating E as and for the purposes herein
described.
2. The combination of the various parts with the renewable seating E to form
a complete tap or valve as herein described.
1017
ז.
1000
G. T. HARRAP,
Agent for Applicant.