Nozzle Regulators.
Year: 1895

page_text: Date of Application, 20th Sept., 1895-Accepted, 26th Oct.,
1895
Nozzle Regulators.
I, ANDRÉ CHAVANNE of Grass Valley, County of Nevada, State of
California U.S.A., Miner, 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 :-
My invention relates to that class of regulators especially adapted for use in
water-nozzles which discharge a stream of water under pressure and in which a
slidable plug within the nozzle and in the plane of its axis is adapted to be moved
back and forth to vary the relation of its point or head with the forward end or tip
of the nozzle in such a manner as to control the latter between the limits of entirely
closing off the water and giving it full and clear exit.
My invention consists in the novel construction of the end or head of the plug,
the manner in which it is mounted in the nozzle, and the means by which it is
operated, all of which I shall hereinafter fully describe and specifically claim.
The object of my invention is to provide a simple and effective regulator for the
nozzles of water-pipes, especially those which are adapted to discharge a stream of
water under high pressure against a water-wheel or other source of power, and by
means of said regulator to reduce or wholly avoid the loss of power arising from
eddies, windings, or chokings of the stream under high pressure.
The regulator will also be applied to those nozzles known in bydraulic mining as
"monitors "and to the nozzles of fire department engines and to other uses to which
regulatable nozzles may be applicable.
Referring to the accompanying drawings for a more complete explanation of my
invention,
Figure 1 is a vertical longitudinal section through a nozzle and its water con-
nections, shewing my regulator in said nozzle and the means by which it is operated,
and also shewing a section of a power wheel against which the stream of water is
to be directed.
Figure 2 is a vertical section through the chamber or casing of the water
connection, taken at right angles to the section of Figure 1.
B is a
A is a nozzle of any suitable type or form having the usual conical tip a.
casing or chamber in communication with the said nozzle and C is the water
Within the nozzle is
connection from the source of water under head or pressure.
fixed by an upright bracket da guide sleeve D', in which is seated and adapted to
slide back and forth the plug D, which lies and moves in the line of axis of said
nozzle. The forward end or lead of this plug is made conical or tapering at d¹ and
corresponds to the inclination or taper of the interior of the tip a so that when
pressed forward it will completely close said tip. Beyond this conical portion d'
the head of the plug or valve extends, and said extension is best made in a series of
reduced diameters (represented by d²) and varying in number as may be desired.
I have here shewn, for example, three joining one another by inclined shoulders
as shewn,
The plug D which forms the regulator, is moved back and forth by suitable
means; but those which I deem the best and which I have shewn are as follows:-
Within the casing or chamber B is a shaft suitably mounted therein and having
one end extending outwardly through its side in a suitable stuffing-box e, whereby
through a crank el connected to its end the operating rod or connection F may be

page_text: attached. Within the casing or chamber B the shaft E has mounted upon it
another crank arm e extending downwardly within the casing and having attached
to its lower end the connecting rod e, which joins it with the rear end of the
slidable plug D. Now by forcing the plug forwardly so that its conical portion d
fills the conical tip of the nozzle, said nozzle is completely closed and the discharge
of water is entirely cut off. By moving the plug back to its innermost limit, in
which the smallest of its reduced diameters lies within the extremity of the tip, said
tip is opened to its fullest extent and the largest amount of water will pass through
the nozzle. By moving the plug to points intermediate of these limits the amount
of water discharged is varied correspondingly. The movement of the plug within
the nozzle is a free and easy one, because it moves as readily in the water as it
would in the open air, as it is wholly immersed therein, and its movement being
gentle the change from one volume and force of water to another may be made
gradually and without any shock.
With this regulator the stream at the outlet of the tip a emerges in a sinuous
annular water-tube concentric with the head of the plug without losing any of its
impulsive power.
With this device shocks, chokings and windings are avoided. There is no waste
of water and the shutting off or opening of a gate is unnecessary.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is ;-
1. A nozzle regulator consisting of a nozzle having a conical tip, a plug
mounted within the nozzle and slidable in the line of the axis thereof, said plug
having a head corresponding to and adapted to fill, when projected, the conical
exit of the nozzle or its tip, and having also an extension beyond, said head,
formed in portions of successively smaller diameters, whereby the issuing water is
caused to assume an annular form concentric with the end of the plug, and its
volume and force may be varied.
2. A nozzle regulator consisting of a nozzle having a conical tip, a plug slidable
in the axis of the nozzle and having a conical head conforming to, and adapted to
close when projected, the conical tip of the nozzle, and having also an extension
beyond said head formed in portions of successively smaller diameters, said
portions joining each other by inclined or beveled shoulders.
3. A nozzle regulator consisting of a nozzle having a conical tip, a plug lying
and adapted to be moved in the line of the axis of the nozzle, and having a head
with a forward extension formed in portions of successively smaller diameters,
adapted to control the nozzle exit, and the means for operating said plug consisting
of an oscillating shaft having a crank arm connected with said plug and a second
crank arm and an operating rod connected with said second crank arm.
4. In combination with the nozzle having a conical tip, the water casing or
chamber and water connection, a regulator for said nozzle consisting of a plug
slidable in the line of the axis of said nozzle and having a head formed in portions
of successively smaller diameters, adapted to control its exit, an oscillating shaft
mounted within the casing or chamber and extending through a suitable stuffing-
box to the outside, a crank arm on said shaft within the chamber or casing and
having a connecting rod attaching it to the plug a crank arm on the outer end of
said shaft, and an operating rod connected with said crank arm.
5. In combination with the nozzle having a conical tip, the water chamber or
casing and water connection, a guide sleeve in the line of the axis of said nozzle
and lying within it, a plug mounted and adapted to slide in said guide sleeve
and having
a conical forward end with an extension therefrom formed in portions
of successively smaller diameters adapted to control the nozzle tip, the oscillating
shaft mounted within the casing or chamber and extending through a suitable
stuffing-box to the outside, a crank arm on said shaft within the chamber or casing
and having a connecting rod attaching it to the plug, a crank arm on the outer

page_text: end of said shaft, and an operating rod or connection connected
crank arm.
6. The water-nozzle, the chamber or casing, and the water connection as described,
in combination with a regulator for the nozzle consisting of a sleeve within said
nozzle and in the line of its axis, a plug or valve adapted to slide in said sleeve
and having a forward end or head with a conical portion, and an extension formed
with portions of successively smaller diameters, said head or end being adapted
to control the exit of the nozzle tip, the oscillating shaft within the chamber or
casing of the nozzle and extending through a suitable stuffing-box to the outside,
a crank arm on said shaft within the chamber or casing and having a connecting
rod attaching it to the plug or valve, a crank arm on the outer end of said shaft,
and an operating rod connected with said crank arm.
Dated this Twentieth day of September 1895.
Jinent