Improved Construction of Valves, Taps, and like Fittings.
Year: 1892

page_text: COMPLETE SPECIFICATION.
Improved Construction of Valves, Taps, and like Fittings.
1, CHARLES WILLIAM EGERTON, of 1, Church Street, Landport, in the County
of Hampshire, Pawnbroker and Jeweller, 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 an improved construction of valves, taps, and like fittings
for liquids or fluids.
My invention consists in the combination and arrangement of fixed and movable
cones each having a discharge orifice and together forming the valve and adapted
to efficiently open or close the thoroughfare as desired. I will fully describe my
invention in reference to the accompanying drawing which represents a water tap,
though it is to be understood the same arrangement and combination of cones,
enclosed in a main casing are equally applicable to steam and other fittings,
requiring only suitable modifications of inlet and outlet connections.
Fig. is a vertical section of the body of the tap;
Figs. 2 and 3 are sections on centre lines of the inner and outer moving cones
respectively;
Fig. is a vertical section through the tap with all parts in position and
turned" on";
Fig. 5 is a horizontal section on line 1-1 of Fig. 4.
The shell of the tap casting A is preferably coned as illustrated and provided
with suitable inlet and outlet passages as indicated by the arrows a; to it is fitted
centrally the hollow fixed tube B having reverse cones on its inner and outer walls
as shown; it is open at its base to the inlet and has an orifice b opposite the outlet.
Inside the fixed cone B is fitted a revolving cone C, Fig. 2, having an orifice c
In the conical space
corresponding to l, and c¹ is a stop across it above the orifice.
between A and B is fitted the outer hollow revolving coued plug D, Fig. 3, like-
wise provided with an orifice d corresponding to those b and c above described, the
three said orifices b, c and d being lineable and corresponding to the outlet when
the tap is open as in Figs. 4 and 5. The plug D carries a circular spindle E
passing through the casing cap F and fitted with a suitable handle e.
hollow of the plug Da squared projection K is formed which passes down and
engages the central cone C above the stop, so that the two cones C and D revolve
together, in which case an externally-threaded nut kis screwed into the top of
the fixed cone B to prevent rising of the revolving cone C; or if desired the cones C
and D may be cast in one piece or rigidly connected together and the whole is
kept tight by adjustment of the screwed cap F.
In the
Provision is made in the construction for the formation of a lower air chamber M
at the base of the plug D, and an upper air chamber N above cone C as illustrated.
By giving a revolution to the handle e the cones C and D are rotated from the
open position illustrated so as to bring the orifices c and d against the solid walls
respectively of the tube B and the shell A and so close the thoroughfare. The air
chambers M and N serve to compensate for any expansion of the metal by heat,
while the imprisoned air therein serves to prevent leakage.
For steam or other high pressure fittings, the cones may be packed with asbestos
or other suitable material in the known manner.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. The improved construction and arrangement of valves, taps and like fittings.
substantially in the manner hereinabove described and illustrated.

page_text: 2. The combination with the casing of a valve tap or like fitting, having inlet
and outlet passages, of a hollow fixed double coned pipe B and revolving connected
cones C and D, all having orifices and together forming a valve adapted to open
and close the thoroughfare substantially as set forth.
Dated thin ath 1
.For the Applicant,
J. C. CHAPMAN,
70, Chancery Lane, London, W.C., Chartered Patent Agent.