A New and Improved Flushing Valve for Water Pipes, Soil Pipes, Sewers, and Gas Pipes.
Year: 1892

page_text: Date of Application, 1st. Nov., 1892
Complete Specification Left, 20th June, 1893-Accepted, 26th Aug., 1893
PROVISIONAL SPECIFICATION.
A New and Improved Flushing Valve for Water Pipes, Soil Pipes,
Sewers, and Gas Pipes.
I, NIMROD SIMMONS B.Sc. of 8 Glendale Clifton in the City and County of
Bristol, Civil Engineer, do hereby declare the nature of this invention to be
as follows:-
My invention relates to a new and improved flushing valve applicable to water
pipes, Boil pipes, sewers etc..
It consists generally; of a section of the pipe to be dammed, formed with a
chamber for the reception of the valve, and the latter is hinged suitably to one side
of the chamber. It is actuated by a lifting rod, or screw and key as required.
The valve itself is of peculiar construction, and consists of a frusto-conical disc of
iron, brass, or other suitable material, pendant to a suitable extension forming part.
of the hinge upon which the valve radiates.
On the back of the disc and diametrically opposite to the hinge is a suitable
extension for the purpose of jointing to the fulcrum of a small bent lever, movably ;
and to this lever the lifting rod or screw is attached.
Inasmuch as the lifting rod might be fastened directly to the back of the valve,
the small bent-lever is intended to controll a second action in the valve after it has
been dropped into position in the bore of the pipe, and it does so as herinafter set
forth.
:
In combination with the frusto-conical disc before mentioned, and in juxtaposition
with it centrally is a cylindrical disc of iron or brass, provided with a dovetail or
other gripping groove or channel on its periphery; and having a spindle fitted.
through it centrally and immovably the same spindle also passes loosely through
the frusto-conical disc, and is jointed movably to one end of the small bent lever
mentioned. The other end or member of the bent lever is jointed movably to the.
lifting rod or screw. In combination with the cylindrical disc, and fitted into the
peripheral channel.named, is a rubber or other elastic ring of peculiar section, such
that while it is grasped in the forenamed channel at its inferior diameter, the
superior diameter with intervening web forms a flexible diaphragm. The outer
section may be made hollow for expansion by hydraulic pressure if necessary. In
summary the valve consists of a hinged flap fitted into a chamber formed in a length
of pipe, or pendant at the extreme end of a line of piping. It consists of a frusto-
conical disc, in combination with a cylindrical disc, to which latter is suitably fitted.
an expansible rubber ring a bent lever, or a straight lever for actuating, (by
which is meant forcing together the two discs). This action causes the rubber
ring to expand over the conical surface of the frustum, and so fill the pipe, forming
a perfect, and watertight valve as intended and described.
Dated Ontation 20 1000
COMPLETE SPECIFICATION.
A New and Improved Flushing Valve for Water Pipes, Soil Pipes,
Sewers, and Gas Pipes.
I NIMROD SIMMONS B.Sc. of 8 Glendale Clifton in the City and County of
Bristol, Civil 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 :-
The said invention relates to valves for arresting the flow of liquids in pipes or

page_text: conduits, and in such manner that there is no obstruction or contraction in the free-
way of the pipe, and no deviation from a straight line through the valve chamber
in the direction of the line of piping. The valves and chambers may be made of
any suitable material, preferably cast iron, steel, or brass or wrought iron.
Having reference to the accompanying drawings,
Fig. 1 is a longitudinal section through the valve chamber in the direction of
any length of piping of which it may form a part. V is the valve taken as a whole,
and it is the combination of a frusto-conical disc C, a cylindrical disc D provided
with a peripheral groove or channel for the reception of an india rubber or other
elastic diaphragm R, and a spindle fixed into the disc D but passing loosely through
the disc C and jointed movably to the small bent lever L. The elastic diaphragm
may be made solid as in Fig. 2 or hollow as in Fig. 1 in which latter case it is
expanded by the hydraulic pressure occurring with a head of water in the pipe.
The small bent lever L is jointed at its fulcrum F to an extension formed on the
back of the valve for the purpose. The valve is pendant from a suitable point as
at J, movably; and by the hinge piece H which is extended beyond the joint and
forked to receive the nut N; it is also slotted to engage with the studs S. S. which
project on each side of the nut N, better seen in Fig. 3. A link K hangs from one
of the studs as shown, and engages at its lower end with one member of the small
bent lever L by means of a stud and slot; the slot may be in the other end of
link K without detriment, or two links may be used, one on each stud.
Engaging with the nut N is a screwed spindle X, carried at its upper half by a
bearing B fixed to or formed upon the chamber cover as shown, and passing out
through a stuffing box and gland G. To its upper end is fitted a hand wheel W
by means of which the valve is operated.
With reference to Fig. 3 which is a back view of the valve shown in Fig. 1,
H is the forked hinge piece engaging with the nut N by means of slots and
projecting studs S. S. as before described, and K is the hanging link supported by
one of the studs at its upper end, and jointed at its lower end to the small bent
lever as before described.
Fig. 2 is a longitudinal section through the valve chamber similarly with Fig. 1,
but the apparatus is here shown as arranged for a line of piping below the ground
level, or otherwise inaccessible, directly.
All that has been described relating to the valve itself as indicated by the
letters C, R, D, applies here also, but the attachments thereto are somewhat
modified. The valve is pendant from a joint J, and radiates upon the same as
centre by means of the extension, or hinge piece H.
The valve is operated by means of a handle or wheel at A, a screwed spindle S,
a nut N, and one or more links K, the latter being suspended from studs on
the nut N, and jointed to the small bent lever L at the lower end. The
spindle S. is pivotted suitably at M. The valve chamber is extended by means
of a hollow projection from the cover P, and carried up to the ground level,
and provided at the top with a stuffing box and gland as shown.
In either and both the foregoing representations of this valve and its connections,
the object of the screwed spindle, links, lever etc. as described are as follows.
The rotating of the screwed spindle operates the nut, causing the same to
traverse the screw, carrying with it the link or links K, which operate the
small bent lever; and by means of the communicated horizontal motion, the
valve also through the small fixed spindle shown; which is free to move
horizontally in the boss at the centre of valve. This horizontal motion causes
the elastic diaphragm to be expanded over. the conical surface of the disc C,
and into firm contact with the circumference of the bore in the valve chamber.
The reverse of this action releases the valve which turns on the centre J into
the cavity provided above and quite clear of the bore of the pipe. These
arrangements of screwed spindle, nut, links, levers, and combined valve may be
used in conjunction with the open end of any pipe, the joint J being suitably
suspended 'above the end of the pipe as shown in Fig. 4; and the valve operated

page_text: in the manner before described, or directly lifted by means of a hand rod O also
as shown in Fig. 4.
Having now particularly described and ascertained the nature of this inven-
tion, and in what manner the same is to be performed, I herewith describe
the features to which I make claim.
1. The combination, in a chamber of iron, steel, brass, stoneware, or other
suitable material; of a valve suitably hinged above an extension of the said
chamber, the said extension forming a clear bore in which the valve fits when
closed, as shown.
2. A disc valve of frusto-conical shape in combination with a second disc of
smaller diameter, cylindrical, and both disposed centrally and axially with the
bore of the extension named, a groove or channel round the periphery of the
cylindrical disc holding an india rubber diaphragm, (which latter may also be
made of any suitable elastic material) and a small spindle passing loosely through
the disc C for connection as shown, to the small bent lever.
3. The valve as described operated by means of a bent lever jointed as shown,
or in another plane; a link or links K, an extension of suitable shape from the
back of the valve to form a forked lever H; slotted to engage with projections, or
studs, on a nut N, operated by a screwed spindle as shown. I also claim to operate
the valve by directly lifting by a hand rod carried up to the surface of the ground
as in Fig. 4.
4. Especially is it claimed that the valve may be used as a stopper in the end of
any pipe, to the exclusion of the valve chamber, and as more particularly shown in
Fig. 4, or in a portable form; where the diaphragm is expanded by a nut and
screw centrally.
The whole of the foregoing do I claim, and any part thereof; and any modifica-
tion of the same, having for its object the expansion of an elastic diaphragm-held
in a groove as described-
[-over a conical surface to form a valve or stopper.
Dated Lune 14th 1803
N. SIMMONS.