Improvements in Valves, especially designed for Regulating the Entrance of Water to or the Discharge thereof from Tanks.
Year: 1892

page_text: Date of Application, 28th Nov., 1892
Complete Specification Left, 24th Aug., 1893-Accepted, 28th Oct., 1893
PROVISIONAL SPECIFICATION.
Improvements in Valves, especially designed for Regulating the
Entrance of Water to or the Discharge thereof from Tanks.
We, JOHN VINCENT GLOVER, of 30 Fort Pleasant Avenue, in the City of
Springfield, State of Massachusetts, United States of America, Brass Machinist,
and WELLINGTON DUSTAN STEVENS of 133 Spring Street, in said Springfield,
Manufacturer, do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in ball-cock valves of the type in which
the valve opens against the pressure and is closed by the pressure against a water-
cushion which is established within the valve-casing.
The purposes of the invention are to simplify and cheapen, and at the same time
to render more nearly perfect valves of the class indicated.
We provide a chambered valve body, or casing, which consists of two sections of
a general cylindrical form arranged axially and united by screw-threads. One of
the sections has at its extremity a circular portion which surrounds the inlet
opening, and to which portion the supply pipe is connected.
The other section of the valve-casing has, at its screw-threaded end, at which
the inlet section is connected, a valve-seat and opening which leads from the
passage in the first casing section to the main chamber of the valve within the second
casing section. The outlet or delivery passage preferably leads from the upper
portion of the main valve chamber and is thence continued in the downwardly
directed discharge nozzle. The second casing section is extended axially beyond a
portion thereof from which the outlet leads in an integral extension having a
smooth internal bore. This bore, towards the end of the casing, which is furthest
from the inlet, is preferably increased in diameter.
The valve-stem is of a length suitable to project from a point in advance of the
forward end of the second casing to a point adjacent the inlet opening of the first
casing receiving at the rearwardly disposed end the valve for action just at the
rear of the valve-seat. The stem has its connection at its forward end with lever-
operating devices which are understood as being controlled by the position of the
float, as usual in this class of valves.
The lever-operating devices are made compound or in adjustable sections and
are pivotally supported and united relative to the valve-casing, and valve-stem,
whereby great power may be exerted to open the valve against a high pressure
upon a given lowering of the float-carrying arm.
The forward portion of the valve-stem plays through a central aperture in a
cup-shaped nut which screw engages the threaded extremity of the second casing
section, said nut holding a centrally apertured compressible packing in confinement.
The valve-stem is integrally constructed entirely of metal having intermediately
a flange or piston which has a comparatively close-sliding fit within the afore-
mentioned bore of the second section.
When the valve is forced open the piston rearwardly moves within said bore,
creating a vacuum therein, which has the effect to draw the water which fills the
main chamber into, the cushion-chamber in advance of the piston.
The fit which the piston has within said bore is not so close as to prevent a
passage of sufficient water forward of the piston, to fill the cushion-chamber. On
the release of the force to open or retain the valve open, the valve and its stem, in
their closing movements, by the pressure, are retarded by the impingement of the
metallic piston upon the water in the cushion-chamber, whereby water hammering
and chattering are obviated, as the water is slowly displaced by being forced
between the piston periphery and the bore which the latter fits.
The forward enlargement of the bore gives increased cushion-chamber capacity

page_text: and ensures a pressure circumferentially upon the beforementioned packing, which
is formed rearwardly tapered, so that the packing may be contracted about the
valve-stem, preventing leakage.
It is usually intended to attach a deafening tube to the discharge nozzle of the
valve which is projected nearly to the bottom of the tank upon which the ball-cock
is employed.
Dated June 20th 1009
JOHN VINCENT GLOVER.
WELLINGTON DUSTAN STEVENS.
Haseltine, Lake & Co.,
45, Southampton Buildings, London, Agents for the Applicants.
COMPLETE SPECIFICATION.
Improvements in Valves, especially designed for Regulating the
Entrance of Water to or the Discharge thereof from Tanks.
We, JOHN VINCENT GLOVER, of 30 Fort Pleasant Avenue, in the City of
Springfield, Massachusetts, Brass Machinist, and WELLINGTON DUSTAN STEVENS
of 133 Spring Street, in said Springfield, Manufacturer, 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 relates to improvements in ball-cock valves of the type in which
the valve opens against the pressure and is closed by the pressure against a water
cushion established within the valve casing. A valve of this character is illustrated
in the Letters Patent of the United States granted to George B. Moore, et al,
September 8, 1891, Number 459,044.
The purposes of the present invention are to simplify and cheapen, and at the
same time render more nearly perfect, valves of the class indicated, and to these
ends the invention consists in the forms or constructions and combinations or
arrangements of parts, all substantially as will hereinafter more fully appear and be
specifically pointed out in the claims.
Reference is to be had to the accompanying drawings in which
Figure 1 is a central vertical section on a large scale of a ball-cock or float-
operated valve constructed in accordance with this invention, the valve being shown
as open.
Figure 2 is a central longitudinal section of the valve stem.
As in the aforementioned Patent, the chambered valve body, or casing, consists
of sections, a and b, united by screw threads, and the section, b, has at its end the
portion surrounding the inlet opening, o, to which portion the supply pipe is
connected by screw threads or otherwise.
C is the valve-seat, axially within which is the opening leading to the main
chamber, d, of the valve, in preferably the upper portion of which chamber_is
provided the outlet or delivery passage, e, which terminates in the downwardly
directed discharge nozzle.
The casing section, a, is extended axially beyond the portion thereof from which
the said outlet opening leads, in an integral cylindrically formed extension, baving
a smoothly formed axial internal bore.
The said bore, however, towards the end of the casing which is furthest from
the valve inlet is preferably increased in diameter, as seen at f'.
g indicates the valve stem which is of a length suitable to project from the point
in advance of the forward end of the casing, a, to a point adjacent the inlet
opening, o, receiving at the rearwardly disposed end the valve, h, and the valve
stem having at its forward extremity a connection with the lever operating devices
which are understood as being controlled by the position of the float as usual in
this class of valves.
The casing section, a, has one or more ear-pieces, i, projecting upwardly from its

page_text: top near the forward end thereof to which is pivotally connected the rear end of
a forwardly extended link, j, to the forward end of which latter the end of the
angular lever, k, is connected which also has at k², the pivotal engagement with the
valve-stem. The angular lever, k, is made sectional and adjustably united as common.
The points of pivotal connection, k², and ³, are comparatively close whereby the
resistance is near the variable fulcrum constituted by the swinging end of the link, j,
and thereby great power may be exerted to open the valve against a high water
pressure upon the given swinging and lowering of the float-carrying lever."
The forward extremity of the valve stem plays through the central aperture in
the cup-shaped nut, l, which screw engages the externally threaded forward
extremity of the casing section, a, said nut holding in confinement the flexible
packing,, which is also centrally apertured through which the valve stem closely
plays.
The spindle-like valve stem is integrally constructed entirely of metal, having
intermediately thereof the piston or flange, m, which has a comparatively close
sliding fit with the aforementioned bore, f, in the forward casing section extension.
Assuming that the valve is forced open, the valve stem rearwardly moving,
carries the piston, m, rearwardly within the bore, f creating a vacuum therein
which has the effect to draw the water which fills the main chamber, d, of the
casing, into the cushion chamber in advance of the said piston,-the fit which the
piston has within the bore, f, while being sufficiently close to 'centrally guide
the valve-stem, does not prevent the ready passage, between its periphery and the
adjacent bore of the valve casing section of sufficient water to fill the cushion
chamber. On the release of the force which had restrained the valve open, the
valve and its stem in their closing movements are retarded by the impingement of
the metallic piston upon the water in the cushion-chamber, f, f, whereby water-
hammering and clattering are overcome.
The water is displaced from the cushion chamber to the main valve chamber, d,
by being forced between the piston periphery and the cylindrical wall which it.
quite closely fits.
The enlargement of the bore, as at 1, gives increased cushion chamber capacity,
and also ensures a water disposition and pressure circumferentially upon the
rearwardly and inwardly tapered flexible packing, 12, whereby there will be a
contracting action of the packing about the valve stem preventing leakage at the
forward end of the valve.
The valve stem by reason of having its piston or circular flange, m, constituted
by an integrally cast portion, its periphery being turned and finished to fit the
bore, f, permits the entire valve stem to be made in a single piece and in a most
simple manner, there being not as heretofore, the necessity of constructing it in
screw united sections or in other complex manner to permit of the combination
therewith of a flexible cup-washer to constitute the cushion resisting piston. The
lever, k, when in the position shown in full lines in Figure 1, serves as a limiting
stop, by reason of its abutment against the nut, l, for restraining undue rearward
movements of the valve stem and valve.
n represents a tube having a connection by the screw threads with the downwardly
directed discharge nozzle of the valve and intended to be projected nearly to the
bottom of the tank with relation to which the ball-cock is employed, so that the
inflow of water into the tank will be rendered noiseless.
The screw-threaded nozzle extremity has its outer side reduced, as at n², so that
there is a vent into the deafening tube, n, to prevent siphonage of the tank, which
otherwise might occur in the event of the valve being open while for any obscure
reason the pressure of the supply pipe becomes discontinued.
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 :-
1. In a ball-cock the combination with a valve casing having at one end an inlet

page_text: opening, an intermediate chamber with an outlet opening, and at the other end a
water catch or cushion chamber of cylindrical form having a smooth bore and a
closing end wall, the valve stem playing axially through said wall, said cushion and
. intermediate chambers and through and beyond the valve inlet opening and having
at the rear of the latter a valve, and also having at its portion which is within the
cushion chamber the cylindrical metallic piston which has a free sliding fit, whereby
on the opening of the valve against the pressure the water may be forced forwardly
past the rim of the piston to fill the chamber and on the closing of the valve, it
may be reversely expelled past the rim of the metallic piston, substantially as and
for the purposes set forth.:
2. In a ball-cock the combination with a valve casing having at one end, an inlet
opening, intermediately thereof, a chamber with an outlet opening, and, at the other
end a water-cushion-chamber of cylindrical form having a smooth bore which,
forwardly thereof, is of an increased diameter, as shown, and a closing cup-formed
nut, i, and the tapered flexible packing, 2, the valve stem playing axially through
said nut and tapered packing and said cushion chamber, the intermediate chamber
and through and beyond the valve inlet opening, and having at the rear of the
latter, a valve, and also having at its portion which is within the rearward portion
of the cushion-chamber a cylindrical metallic piston which has a free sliding fit
with said rearward portion of the cushion-chamber wall, all substantially as and
for the purposes set forth.
3. The combination with a ball-cock having a reciprocating valve-stem, a lever,
which, for the support of the ball intermediately. thereof, is pivotally connected to
the valve-stem, and a link having one end pivoted to the top of the valve casing,
and its other end pivoted to the arm of the ball carrying lever which is projected
above its point of pivotal connection with the valve stem, substantially as
described.
4. The combination with a ball-cock or valve having a downwardly extended
nozzle, of a deafening tube connected to the nozzle and downwardly projected
therefrom, and having a vent opening leading into an upper portion of the said tube,
substantially as and for the purpose set forth.
Dated this 20th day of June 1892.
JOHN VINCENT GLOVER.
WELLINGTON DUSTAN STEVENS.
Haseltine, Lake & Co.,
45, Southampton Buildings, London, Agents for the Applicants.