Improvements in or connected with Water-way Nozzles or Jets and Valves for same.
Year: 1890

page_text: COMPLETE SPECIFICATION.
Improvements in or connected with Water-way Nozzles or Jets
and Valves for same.
We, ALFRED JAMES EADE, Machinist and Gasfitter, and AMOS EADE, Engineer
both of Bridge Iron Works, Edenbridge in the County of Kent, 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 :-
Our invention refers to that class of water way nozzles or jets wherein the supply is
turned on and cut off by the turning of the nozzle itself.
According to our invention the base of nozzle is provided with a shoulder or collar,
there is a corresponding shoulder or collar on the pipe to which the nozzle is to be
connected and between these two shoulders or collars there is an india rubber or
equivalent elastic washer or ring, or instead of outside washer there may be a gland
with packing inside; the valves constructed as hereafter described are opened or closed
by partially unscrewing or screwing up the nozzle proper. And in order that our
invention may be fully understood and readily carried into effect we will describe
same by reference to the accompanying drawings.
Figure 1 is a side elevation, and
Figure 2 is a sectional elevation of a nozzle and valve constructed according to one
modification of our invention,
Figure 3 is an enlarged horizontal section of the valve detached.
Figure 4 is a side elevation, and
Figure 5 is a sectional elevation of a nozzle and valve constructed according to
another modification of our invention.
Figure 6 is an enlarged horizontal section of the valve detached ;
Figures 7 and 8 are views in side elevation and vertical section of a modification
showing a nozzle with gland fitting according to our invention.
The nozzle or jet is composed of two parts, a tubular rear part A on to which is
screwed a tubular nose, nozzle or jet piece B. Referring particularly to Figures 1, 2
and 3, a is the collar or shoulder on the base of the nozzle piece B; 6 is a collar
formed on a sleeve which is screwed on the rear part A; c is the elastic washer which
may advantageously be made of india rubber between the collars a and b.
In the interior of the nose, nozzle or jet piece B there is a shoulder d and in the
interior of the part A there is a valve seat e and between these two parts there is a
valve, as shown at Figures 2 and 3, and which is pressed to its seat by the shoulder d
in the nose B. The valve shown at Figure 3 and suitable for the purpose of our
invention is formed in front with a ring which fits the rear tubular part of the
nose B and forms a front guide and extending from the ring rearwards and connected
thereto by side pieces 1; 2 is the valve proper provided at its bearing face with a
leather or india rubber packing f³, or instead of the packing 3 we may employ a
metal ball in place thereof, and in such a case the seat would be countersunk or shaped
suitably to receive it. To the rear of the seat the tubular part A is shown contracted
and the contraction is provided with a suitable projection to prevent the centrifugal
action of the water but this contraction of the passage to the rear of the valve seat is
optional and may be arranged according to circumstances, in fact no contraction at
the rear of the valve seat is absolutely necessary.
In the drawing the tubular part A is formed for receiving hose connecting tube but
this part A may be screw threaded or be provided with other devices for connection
according to circumstances.
The liquid flows when the valve is open through the tubular part A, passes round
the valve 2 and through the guide ring fand out by the nozzle piece B.
By rotating the nozzle piece B the valve fis pressed to its seat and the exit closed,
all escape of the water being thereby prevented. The pressure of the collar a on the
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page_text: washer c when the valve is open prevents escape of water and the extent of this
pressure, which will occur when the valve is thus open, may be altered or regulated
by changing the position of the collared sleeve b.
In the arrangement shown at Figures 4, 5 and 6, the rearward collar b is not
shown as being adjustable, it being formed with the part A, the washer c which is
made of india rubber is considerably thicker and more elastic than in the other
arrangement so as to dispense, as much as possible, with the necessity of adjustment
thereof. The valve fis somewhat more elongated, the connecting side pieces f¹ being
longer, but the main feature of difference is, that the collar b6 is not adjustable ;
during the course of our experiments we have found this arrangement to work well
but for ease of adjustment and manufacture we prefer the arrangement shown at
Figs. 1, 2 and 3.
It is now understood that by the use of the elastic washer c and the collars a, b, we
prevent rearward escape of liquid, but it will be obvious that mechanical equivalents
may be readily devised for effecting the purpose, that yet come completely within the
scope of our invention; such a case we have illustrated at Figures 7 and 8 where the
part A has in front of or about the valve seat a cylindrical part a which is fitted into
an interior cylindrical chamber b in the nose B, and on the exterior of the part a
there is provided a suitable annular packing e so as to form a gland which while
allowing the nose B to be rotated makes a water tight joint; such annular packing
may consist of a woven or braided packing ring, or of a split metal ring, or otherwise
and the material for forming the washer e may be also varied.
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 we
claim is :-
:-
First In water way nozzles or jets wherein the rotation of the nozzle piece forces
the valve to its seat in the rear part or vice versa, the combination therewith of the
collar a on nose B, the washer and the adjustable sleeve collar whereby a tight
joint is secured between parts A and B when the valve is open and also the proper
relative adjustment of pressures between the valve f and valve seat e and between the
collar a and washer c is obtained, all substantially as set forth with reference to
Figures 1, 2 and 3 of the accompanying drawings.
Second: In water way nozzles or jets wherein the rotation of the nozzle piece
forces the valve to its seat, the combination therewith of the collar a on nose B, the
washer c and collar 6 together with the valve ff' all constructed, arranged and acting
substantially as described and illustrated with reference to Figures 4, 5 and 6 of the
accompanying drawings.
Third: In water way nozzles or jets wherein the rotation of the nozzle piece forces
the valve to its seat in the rear part or vice versa, the combination therewith of the
cylindrical chamber in nose B, cylindrical gland portion a, in the chamber 6,
together with valve, all substantially as herein before described and illustrated with
reference to Figures 7 and 8 of the accompanying drawings.
Fourth In water way nozzles or jets, the valve in same constructed, arranged, and
acting substantially as hereinbefore described and illustrated with reference to the
accompanying drawings.
Fifth The general construction, arrangement and combination of parts comprising
our improved water way nozzles or jets and valves all substantially as herein described
and illustrated with reference to the accompanying drawings together with any mere
modification thereof.