Year: 1897

page_text: Date of Application, 2nd Apr., 1897
Complete Specification Left, 28th Dec., 1897-Accepted, 19th Feb., 1898
I, CHARLES JONES, of St. George's Ironworks, in the City of Liverpool, Mechanical
Engineer, do hereby declare the nature of this invention to be as follows:-
This invention has for its object a hydrant or screw-down valve which shall.be
less liable to get out of order and far more efficient than those at prosent in
use.
On preferably a horizontal portion of the pipe or conduit carrying the water,
steam, air or other fluid I place a seat for a conical valve. Below the seat is a
space entirely closed in and forming an embayment in the pipe so as to allow for
wear, and enable the valve to descend as it wears.
The outside surface of the valve is formed preferably with a face only in those
parts which are opposito and immediately surrounding the passages, so as to form
u joint, the other parts of the surface not being in contact with the seat. It may
also not be in contact in the central part of that portion of the valve which faces
the pipe or conduit, all those porüons indeed which are never likely to come
opposite the seat through the wearing away or lowering of the face.
A chamber is placed above the valve and the valve projects somewhat into it.
The valve has brackets on the top to receive and hold or grasp the nut through
which a screw works for raising and lowering the valve. The nut itself has pro-
jecting wings entering vertical grooves in the above chamber which prevent it
from revolving, and the screwed valve spindle passes down into and through this
nut, above this upper chamber a stuffing box, collar and gland and thrust washer
are placed so as to prevent vertical motion in the spindle, while allowing free rotary
motion.
The mode of action is as follows: -
The spindle being turned revolves in the nut and causes the latter to rise or
descend vertically, carrying the valve with it. Both nut and valve are prevented
from rotating, the nut by its wings guided in the vertical grooves of the upper
chamber, and the valve by its brackets clasping the flat sides of the nut. The
conical valve is quickly ground to its seat owing to there being only a comparatively
small surface in contact, while there being a hiatus under the faces of the valve,
it can be repeatedly turned up and re-ground before becoming too small.
In the foregoing I have only mentioned a vertical spindle. It is obvious however
that the spindle and entire device can be placed at any angle, further any arrange-
ments whereby the spindle can raise and lower the valve while the latter is held
from turning and free to adjust itself to the seat can be used instead of the exact
device shown, provided the arrangement be such that the valve can be ground
on its seat.
Among the advantages which I hope to gain from this invention are the
following:
:-
Less risk of breakage in handling. The valve may be screwed down hard with-
out damage. No wear on the faces as they do not grind on each other as is the

page_text: case with screw down valves in which the valve rotates on its seat, consequently
the only wear will be from erosion. As the cost of breaking up the streets to lay
down hydrants is generally very greatly in excess of the cost of the hydrants laid
down, it is obvious that great economy must ensue from a much more durable
valve, even though the first cost of the valve be greater.
Dated this 1st day of April 1897.
Improvements in ayurants, Stop valves, and the like.
I, CHARLES JONES, of St. George's Ironworks, in the City of Liverpool, Mechanical
Engineer, 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 has for its object a hydrant or screw-down valve which shall be
less liable to get out of order and be far more efficient than those at present in
use.
It is best described by aid of the accompanying drawings, in which:
Figure 1 is a longitudinal section of the valve and contiguous pipe ;
Figure 2 a vertical section of the same with the screw and nut in elevation;
Figure 3 a horizontal section through the centre of the plug; and
Figure a half plan view.
In these A is the pipe or conduit carrying the water, steam, air or other fluid
nd having a portion horizontal or otherwise at A, B conical valve seat, C space
formed below the valve seat and valve, so as to allow the valve to be trued up in
lathe or re-ground several times without coming agaiust the bottom, and D conical
valve. The surface of this valve or plug is formed preferably with a face d only
in those parts which are opposite and immediately surrounding the conduit A
so as to form a joint, the other parts of the surface not being in contact with the
seat. The valve surface may or may not be cut away at that central part which
faces the pipe or conduit A¹ though this is not shown on the drawing, in fact any
of those portions which are never likely to come opposite the seat through the
wearing away or lowering of the face of the valve. Dis the chamber placed above
the valve, and valve D has a projection E on top which projects somewhat into it,
constituting a bracket which receives and holds or grasps the nut hereafter
described, through which works the screw spindle G for raising and lowering the
valve. The bracket consists of embayments e holding corresponding projections f
on the nut. These embayments and projections are parallel with each other 80
that the nut can be slid in between them sideways. F is the nut having pro-
jections fitting into the grooves e. It is obvious that a groove in the nut and a
projection on the valve will accomplish the same result. The nut has parallel
faces corresponding to the embayments e in the valve. The nut itself has pro-
jecting wings L entering vertical grooves M in the chamber D¹ which prevent it
from revolving and the screwed spindle passes down into and through this nut.
Above this upper chamber is a stuffing box J and gland K. II is a thrust washer
bearing on the top of chamber D', and against the other side of H the collar I
hears so as to prevent vertical motion of the spindle while allowing free rotary
motion. It will be noticed that the valve D is made hollow so as to allow the valve
to rise on the spindle without the end of the spindle coming in contact with the
valve.

page_text: The mode of action is as follows : -
Spindle G being turned, revolves in nut and causes the latter to rise or descend
vertically as the case may be carrying the valve with it. The nut T and valve D
aro however in the drawings shown at their lowest point. Both valve and nut are
prevented from rotating, the nut by its wings L guided in the vertical grooves M
of the upper chamber, and the valve through its bracket E clasping the sides of
nut F. The nut is also prevented from having vertical movement independent of
valve D through the projection of holding into the groove e. There is preferably
however a small play between these projections L and grooves M and also between
the bracket E of the valve and the nut F se as to enable the valve to acconumodate
itself to the seat when being held askew through any straining or bending of the
spindle. The valve seat B is also held in place and prevented from rising with the
valve by set screws N. The conical valve is quickly ground to its sent owing to
there being only a comparatively small surface in contact, while there being a
hiatus under the valve, it can be repeatedly turned up and re-ground before
becoming too small. In order to prevent a water cushion impeding the valve from
coming tight against its seat, I prefer to perforate the valve at the bottom with
perforations Pas shown in Figure 1.
In the foregoing I have only mentioned a vertical spindle. It is obvious how-
ever, that the spindle and valve and the entire device can be placed at any angle.
Further any arrangement whereby the spindle can raise and lower the valve,
while the latter is held from turning, and yet is free to adjust itself to the seat,
can be used instead of the exact device shown, provided the arrangement be such
that the valve can be ground in its seat.
Among the advantages which I hope to gain from this invention are the
following
-
Less risk of breakage in handling.
The valve may be screwed down hard without damage.
There is no sensible wear on the faces, as they do not grind on each other, as
is the case with screw down valves in which the valve slides or rotates on its
seat, consequently the only wear will be from erosion.
As the cost of breaking up the streets to lay down hydrants is always very
greatly in excess of the cost of the hydrants themselves, it is obvious that great
economy must ensue from a much more durable valve even though the first cost
of the valve be greater.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is:-
1. In a hydrant or stop valve, the combination with the shell or casing, of a
conical valve seat locked or retained therein by lateral set screws; a cone valve
baving relief holes formed in its lower end; a nut carried freely by the upper end
of the valve; and a stem or rod working in said nut for raising and lowering the
same and the valve, substantially as described.
2. In combination with the shell or casing, a valve sent; chambers above and
below said seat; a cone valve; a guided nut carried by the upper end of the valvo;
and a rod or stem working in said nut for raising and lowering the same sub-
stantially as described.
3. In combination with the shell or casing, a valve seat locked in position by set
screws; chambers above and below said seat; a cone valve having grooved brackets
at its upper end; and a nut mounted in said brackets and having projections L
fitting in and moving up and down in grooves M formed in the shell substantially
as described.
4. The combination in a hydrant or stop valve, of a rotary scrowed spindle, a
conical valve, a nut on said rotary spindle, the nut and valve grasping each other
in such a manner that while they each are prevented from having vertical move-
ment independent of the other, yet they have a small play to enable the valve to

page_text: accommodate itself to the seat when being held askew through any irregularity in
the spindle, and means for preventing the valve and nut turning on their axes
substantially as described.
5. In a hydrant, the combination of the horizontal pipe A, seat therein B and
valve D having a face bearing on the valve only immediately round the conduit,
whereby only a very small amount of grinding is required to keep it to its seat
substantially as described.
G. The hydrant or stop valve taken as a whole substantially as described and
shown on the accompanying drawings.
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1007
WM. P. THOMPSON & Co.,
Patent Agents, of Liverpool, Manchester, Birmingham, and London.