Improvements in Hydrants, Stop Valves, and the like.
Year: 1898

page_text: Date of Application, 4th Jan., 1898
Complete Specification Left, 19th Oct., 1898-Accepted, 10th Dec.,
1898
PROVISIONAL SPECIFICATION.
Improvements in Hydrants, Stop Valves, and the like.
JAMES CADOUX HUDSON, 75, Upper Ground Street, Blackfriars Road, London,
Engineer, do hereby declare the nature of this invention to be as follows:-
an
the
This invention refers to fire hydrants but is equally applicable to other forms
of stop valves. In fire hydrants or stop valves of the screw down pattern fixed
to horizontal or vertical mains within buildings it is the common practice to
attach these hydrants to a flange on the main. The hydrant or stop valve
considerable projection from
standing free of the main, thus causing a
must either be
the main; and in staircases and passages the main
buried in a deep chase or the hydrant itself is let into the wall, or
the projecting hydrant.
obstruction 18 placed in
passage by
My improvement consists in letting the body of the hydrant and that part con-
taining the valve into the main and enlarging main at that place so as not to
retard the flow of water past the body of hydrant. An opening with flange is
formed in the main sufficiently large to take in the body of hydrant containing
the valve, the inlet passage and part of the outlet passage; and a corresponding
flange on the hydrant closes this opening when the hydrant is attached to the
main. The outer face of this flange on the hydrant is on about the same plane
as the usual joint of the cover of hydrant by which the valve is removed. I
reduce the space taken up by the packing to spindle as much as possible, as
also the length of spindle and projection of hand wheel. The outlet of hydrant
comes through the flange or cover of hydrant at right angles or at any desired
inclination; by this arrangement the projection of hydrant from main is con-
siderably reduced and the valve and body of hydrant being within the main
is also protected from frost.
1900
Improvements in Hydrants, Stop varves, and one
JAMES CADOUX HUDSON, 75, Upper Ground Street, Blackfriars Road, London,
S.E., 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 refers to fire hydrants but is equally applicable to other forms
of stop valves. In fire hydrants or stop valves of the screw down pattern fixed
to horizontal or vertical mains within buildings, it is the common practica to

page_text: attach these hydrants to a flange on the main. The hydrant or stop valve
standing free of the main thus causing a considerable projection from
the main; and in staircases and passages the main must either be
buried in a deep chase or the hydrant itself is let into the wall or
an obstruction 15 placed in the passage by the projecting hydrant.
My improvements consists in letting the body of the hydrant and that part con-
taining the valve into the main and enlarging main at that place so as not to
retard the flow of water past the body of hydrant. An opening with flange is
formed in the main sufficiently large to take in the body of hydrant containing
the valve, the inlet passage and part of the outlet passage; and a corresponding
flange on the hydrant closes the opening where the hydrant is attached to the
main. The outer face of this flange on the hydrant is on about the same plane
as the usual joint of the cover of hydrant by which the valve is removed. I
reduce the space taken up by the packing to spindle as much as possible, as
also the length of spindle, and projection of hand wheel. The outlet of hydrant
comes through the flange or cover of hydrant at right angles or at any desired
inclination.
By this arrangement the projection of hydrant from main is considerably
reduced, and the valve and body of hydrant being within the main is also
protected from frost.
In order that my said invention may be most fully understood and readily
carried into effect, I will proceed to describe the drawings hereunto annexed.
DESCRIPTION OF DRAWINGS.
Fig. 1 is a sectional elevation of one form of improved hydrant valve and
part of a fire main.
Fig. 2 is a cross section of same through line A. B.
Fig. 3 is a front elevation.
Fig. 4 is a sectional elevation of another form of improved hydrant valve and
part of fire main.
Fig. 5 is a cross section of same through line C D.
Fig. 6 is a front elevation of same.
In these figures similar letters refer to similar parts.
In Figs. 1, 2 & 3 (E) is the hydrant valve having valve (F), seating with
inlet (G), screw down spindle and hand wheel (H), and cover (I), and outlet (J).
The hydrant valve is attached to main by the flange (K). (L) is the fire main
having flanged branch formed to receive the flange (K) of hydrant. That part of
body of hydrant valve containing the valve (F) and seat (G) and part of out-
let (J) is let into the main (L) and the main is enlarged in cross section at about
that part where the entering body of valve (E) would otherwise contract the
waterway past the valve at (G) & (F). In Figs. 1, 2 and 3 the valve spindle (H),
valve (F) and seat (G) are at right angles to centre line of main pipe (L) and
the flange (K) on body of valve is parallel with that centre line. The enlarge-
ment of main to allow the free passage of water past the inwardly projecting
valve body is shewn in Fig. 2 cross section, and it can be made of any other con-
venient form. In Figs. 4, 5 and 6, the valve spindle (H) is placed at an
angle with the centre line of main pipe, and the flange on body of valve is parallel
to centre of main pipe. The opening into main is of circular form as also is
the flange or hydrant valve body, the outlet of hydrant is about at right angles
with the valve spindle. The enlargement in main to give free passage of water
is here shewn of globular form.
By this arrangement of round opening and flange the hydrant valve can be
so placed that the outlet shall point towards the ground or to the right hand
or to the left. By these improvements I am able to reduce the projection of
the valve beyond the main to a considerable extent and at the same time make
a hydrant and main with free water way and which is frost proof so long as
water remains in the main pipe. The angle of plane of the flange on main in

page_text: relation to centre line of main, as also the angle of valve spindle and outlet of
hydrant in reference thereto, can be varied to suit circumstances.
In Fig. 4 the dotted lines shews the main adapted for a horizontal pipe.
Having now particularly described and ascertained the nature of my said in-
vention, and in what manner the same is to be performed, I declare that what
I claim is:-
Firstly. I claim the arrangement of reducing the projection of a fire hydrant
from the water main, by letting the body of hydrant into the water main and
enlarging the main at that part so as not to retard the flow of water to or past
the hydrant, and forming the hydrant for the purposes stated and as illustrated
and described.
Secondly. I claim the arrangement of hydrant valve as herein described and
illustrated for other purposes than as a fire hydrant.
Dated this 19th day of October 1898.
JAMES CADOUX HUDSON.