Year: 1897

page_text: Date of Application, 24th Sept., 1897-Accepted, 26th Mar., 1898
We, SIMON RICHARDS, of Saint Blazey Gate, in the Parish of Saint Blazey, in the
County of Cornwall, and HENRY RICHARDS, of the same place, both 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 relates to a novel construction or arrangement of valves and cocks.
The improvements attained by our invention consist of an arrangement of an
elastic valve combined with a special form of seating enabling it to be shut tight with
little pressure and of a form of passage for the flow of the liquid which will tend to
keep the valve clean but not cause so much wear on the seatings.
The valve consists of two parts-First, of an outer metallic casing or holder with a
spill or guide by which it is guided in its motion and prevented from upsetting―
Secondly, of an elastic valve which may be of india rubber or other suitable material.
We prefer and find it satisfactory, that this valve be simply attached to its casing or
holder by elastic pressure or friction but it might be attached by screwing it into its
casing or holder by reciprocal screw threads formed on the casing or holder and the
valve or by a screw through the valve into the casing or holder or by other obvious
means. See Figure 1. F being the valve and E the holder.
The special form of seating is shewn by Figure 2 on sheet of drawings it
consists of a flat seating which is slightly raised above the surface of the body of the
cock or valve on the portion immediately surrounding the opening or orifice for flow
of liquid and indicated by the letter A on Figures 2 and 3 and also of a vertical
annular seating marked B on the same figure.
In constructing the cock or valve the relationship as to size between the valve and
the seatings should be such that as the valve is screwed down on the flat seating it
will expand laterally and make a tight junction against the side seating, the wide
surface contact thus secured preventing the liquid from escaping, with comparatively
little pressure on the valve.
It will also be seen that when the valve is lifted to allow the liquid to pass the chief
tendency of flow will be from C to D as shewn in Figure 2.
The valve may be forced on to its seatings by any of the well known methods in
use but we prefer a screw with hole to take spill of valve.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what
claim is :-
we
1. In cocks or valves the use of a valve substantially as described and shown in the
annexed drawings Figure 1.
2. In cocks or valves the formation of the seatings as described and shown in the
annexed drawings Figures 2 and 3.

page_text: 3. In cocks or valves the combination of a movable elastic valve with both flat and
annular seatings substantially as described and set forth and shown on the annexed
drawings, Figure No. 3.
Dated this Twenty-third day of September 1897.
JOS. M. COON,
Bank Offices, St. Austell,
Agent for the said Simon Richards and Henry Richards.