IMPROVEMENTS IN VALVES OR TAPS
Year: 1885

page_text: HECTOR AYLESBURY of 4 Kings Buildings St Andrews Rd Montpelier in the
city of Bristol Engineer and JAMES MILNE of Caledonian Chambers in the city
of Bristol Chartered Accountant do hereby declare the nature of this their
invention for IMPROVEMENTS IN VALVES OR TAPS to be as follows:-
In valves or taps as ordinarily constructed there is only a single valve and seat,
and if any accident happens to that part of the tap, the necessary repairs cannot be
carried out untill the steam or fluid the tap is to retain has been shut off, this
often necessitates considerable delays and in the case of expensive liquids much
loss from waste. The arrangement where possible is at present to provide a second
or stop-cock to shut off the liquid but this stop-cock also, is liable to the same
accidents.
To over come these serious defects we propose to construct our tap or valve as
follows, in addition to the ordinary valve now in use we propose to provide
preferably at the bottom of the valve shell or casing a circular cavity into which
is fitted accuratly a corresponding piece or plug, the cavity may be hemispherical,
conical, or any other suitable shape, the plug is prolonged through the bottom of
the shell and terminates outside in any conveniently shaped handle, nut, or piece,
for the ready turning of the plug, this plug has a way cut in it which when the
tap is open and in use comes in front of, and forms a continuation of, the way
through the back of the tap from the pipe supplying it, but on the plug being
sufficiently turned by the projecting handle the way in the plug is moved from in
front of the way in the back of the tap and the tap closed. This being done quite
independantly of the second or ordinary valve arrangement. We find it convenient
in practice to make the plug of the bottom or first valve hollow and to let its top
edge be quite or almost flush with the top edge of that part of the shell or casing
into which the plug fits, we then arrange the second or ordinary valve to screw
down on to the top of the plug, or the shell, or both, as may be most con-
venient, a suitable way being provided from the underside of the ordinary or
second valve to the front of the tap, so that when the ordinary or second valve is
open the flow of any liquid through the tap is unimpeded as long as the first valve
is open but on that being closed by turning as described, the second or ordinary
valve can be entirely removed and any necessary repairs done thereto without
delay or loss.
A suitable spring or springs or a locking nut may be provided on the projection
of the plug of first valve to ensure tightness of that particular valve.
Dated thi L 1
1
PHILIP JOLIN,
Agent to the Patentees.

page_text: We HECTOR AYLESBURY of 4 Kings Buildings St Andrews Rd Montpellier
Bristol Engineer and JAMES MILNE of Caledonian Chambers St Stephens Avenue
in the city and county of Bristol Accountant do hereby declare the nature of our
invention for IMPROVEMENTS IN VALVES OR TAPS and in what manner the same
is to be performed, to be particularly described and ascertained in and by the
following statement:-
In valves or taps as ordinarilly constructed there is only a single valve and seat,
and if any accident happens to that part of the tap the necessary repairs cannot be
carried out untill the steam or fluid the tap is to retain has been shut off, this often
necessitates considerable delays and in case of expensive liquids much loss from
waste, the arrangement where possible is at present to provide a second or stop
cock to shut off the liquid, but this stop cock is liable to the same accidents.
To overcome these serious defects we propose to construct our tap or valve as
follows in addition to the ordinary valve now in use we propose to provide
preferably at the bottom of the valve shell or casing, a circular cavity or seat into,
or upon which is fitted accurately a corresponding piece or plug the cavity may be
hemispherical, conical, flat at bottom, or face, or any other suitable shape, the plug
or its equivalent which may be called the suplimentary valve is prolongued through
the bottom of the shell, and terminates outside in any conveniently shaped handle
nut or piece, for the ready turning of the said plug, this plug or sublimentary
valve has a way cut in it which when the tap is open and in use comes in front of
and formes a continuation of the way through the back of the tap from the pipe,
or other source supplying it, but on the plug or suplimentary valve being
sufficiently turned by the projecting piece the way in the plug or suplimentary
valve is moved from in front of the way in the back of the tap, and the tap closed
this being done quite independantly of the second or ordinary valve arrangement,
we find it convenient in practice to make the plug or suplimentary valve hollow
and to let its top edge be quite or almost flush with the top edge of that part of
the shell or casing into which the plug or suplimentary valve fits, we then arrange
the second or ordinary valve to screw down onto the top of the plug or
suplimentary valve, the shell, or both as may be most convenient, a suitable way
being provided from the underside of the ordinary or second valve to the front of
the tap so that when the ordinary or second valve is open the flow of liquid
through is unimpeaded as long as the plug or suplimentary valve is open but on
that being closed by turning as described the second or ordinary valve can be
entirely removed and any necessary repairs done thereto without delay or loss.
A suitable spring or springs, or a locking nut, or nut and washer, may. be
provided on the projection of the plug or suplimentary valve to ensure tightness
of that particular valve.
That this invention may be more easily understood we append a sheet of
drawings Figs. 1, 3, 4, and 5, are sections longitudinaly showing the invention
applied to an ordinary bib-cock or valve, Fig. 2, shows sectional plan of Fig. 1,
taken along a line immediatly over the top face of suplimentary, and in these cases
the lower valve; C, C, C, C, in Figs. 1, to 5 represents the casing, A in like manner

page_text: represents the suplimentary or bottom valve, F, represents the prolonged end of
the suplimentary valve A, D, represents a washer and E, suitable nut, to keep the
valve A tightly in its seat, or against the face on which it works; in Fig. 3
however the nut and washer E, and D, respectively are replaced by a stuffing box G
and spring S, W represents the way or opening in the casing C to allow the flow
of the liquid, and w¹ represents the way or opening for the flow of liquid through
the suplimentary valve A, B, represents the ordinary or second valve with its
usual washer of yeilding material to close way w².
Figs. 1, and 2, show suplimentary valve in shape of a cone A applied to
ordinary bib cock, with the second or ordinary valve B resting on the top of
valve A and face of casing C immediatly round the valve A, F represents the
prolonged end of A squared for turning with a key, D is a washer and E a
tightening nut of the usual kind, C, C, C, represents the casing; the screw down
plunger P for pressing B to its seat and stuffing box K are of the ordinary kind
in general use. The Fig. 1 shows the ordinary valve B closed as in general every
day use, but if it is required to remove B, then the suplimentary valve A is turned
by means of the piece F, untill the way w¹ is clear of the way W in the casing C,
and the way W thereby closed, then the stuffing box K and plunger P and valve B
can be taken away, the flow of steam or fluid being stopped by the valve A.
Fig. 3 shows the suplimentary valve A in the shape of a cone as in Figs. 1 and 2
but inverted and kept tight by means of a stuffing box G and gland H and
spring S, F represents the prolonged end of A, for turning; the stuffing box K,
and plunger P, are left out for sake of simplicity the other details are represented
by the same letters as in Figs. 1 and 2.
Fig. 4 shows suplimentary valve in form of a circular plate A taking place of
cone valve, in Figs. 1 and 2, the other details remaining the same and are denoted
by the same letters as Figs. 1 and 2.
.
Fig. 5 represents the suplimentary valve A, in form of a part of a sphere, here
shown as a hemisphere, and marked A the other details are the same as Figs. 1
and 2 & are denoted by the same letters.
Having now described our invention we wish it to be clearly understood that
we consider within the scope thereof the application to valves or taps in general of
a suplimentary valve of the kinds mentioned and shown to arrest the flow of steam
or fluid of any kind in addition to the ordinary valve, such suplimentary valve
being used in any of the ways described or in any way that will attain the
same end.
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
In a valve or tap the application of a suplimentary valvo to arrest the flow of
steam or other fluid substantially as described and shown.
In a valve or tap the combination of a suplimentary valve with an ordinary
screw down or other valve substantially for the purpose set forth.
PHILIP JOLIN,
Agent.