IMPROVEMENTS IN APPARATUS Fon RAISING AND, FORCING WATER, AND OTHER LIQUIDS
Year: 1884

page_text: II
other Liquids. ▼
We ISAAC SHONE and EDWIN AULT, both of Pentrefelin House, Wrexham in
the County of Denbigh, North Wales, Civil and Mining Engineers do hereby
declare the nature of the said Invention for IMPROVEMENTS IN APPARATUS Fon
RAISING AND, FORCING WATER, AND OTHER LIQUIDS to be as
as follows
I
This Invention has for its object certain improvements in apparatus for raising
and forcing water and other liquids, being improvements upon apparatus set forth
in the Specification of Letters Patent N° 3524 AD. 1878. 1
.
The part of the Specification of the Invention of Letters Patent N° 3524/78
which these present improvements have particular reference to, is the valve
apparatus for governing, or regulating the admission to, and exhaust from, the
ejectors of compressed'air'; particularly in reference to Figures 10 10 and 10B.
An apparatus constructed according to this Invention, consists of the following
construction and arrangement of parts. The valve of the apparatus is of the piston
type, having a double piston, the two pistons being connected together by a rod, or
bar, which allows of each of the two pistons to work freely upon their individual
seats. The valve works in a cylinder provided with two annular passages and
ports, one being the admission port and the other the exhaust port. To and from
these annular passages lead the supply and exhaust pipes and the opposite side is
provided with a cover so that access can be had to the valve and ports for any
desired object. The space between the pistons is in connection with the interior of
the ejector through a passage which serves as the communication for the passage of
the air to and from the ejector. An annular ring is formed in the cylinder and
between the two pistons, which serves as a seat for the inner ends of the pistons to
bear against. Rings of soft metal, or wood, or other suitable material are formed,
or let in the pistons to serve as seats in them. The outer ends of the pistons are
provided with cup leathers to form joints between the pistons and the sides of the
cylinder. The valve is propelled forwards and backwards by the compressed air
which is led by ports to each end of the cylinder, these ports being alternately open
and closed to each end of the cylinder by a slide valve of the "Trick" type. This
valve works at each end upon a face on the upper portion of the valve cylinder
and is enclosed by a casing bolted to the cylinder. In the valve face there are, at
the exhaust end of the cylinder, two ports one for supplying and exhausting the

page_text: cylinder in which works the exhaust piston, as above described and the other port
leads to the annular passage for the main exhaust and serves as an exhaust passage
for the end of the cylinder in which works the air admission piston.
In the valve face at the opposite end of the cylinder, namely the air supply end,
there is a port which serves to supply and exhaust that end of the cylinder.
Air is supplied to the slide valve casing by a passage communicating between
the annular casing for the air supply and the interior of the valve chest; and the
air to work the piston valve is supplied at the opposite ends of the cylinder by the
ports above specified alternately, by the slide valve, and exhausted therefrom
through the interior of the slide valve which is always in communication with the
exhaust annular casing. The slide valve is worked by a rocking arm placed
inside the slide valve casing; this arm being mounted upon a horizontal shaft
which passes through a stuffing box in the valve casing to the outside where it
bears in a bracket and is worked, namely rocked by a lever which is connected to.
the cup rod of the ejector. This lever is provided with a weight which counterpoises
the cup and rods of the ejector and the bracket is supported by and bolted to the
ejector casing.
Access is had to the interior of the slide valve casing by means of a removeable
cover on one side of the casing in which is formed the stuffing box for the rocking
valve spindle above spoken of.
By the improved construction of the apparatus as above specified and the
arrangement of its parts we obtain several advantages, amongst which are the
following: The counterpoise weight being placed away from the apparatus all
undue, or unequal pressure upon the pistons, that might be acting upon such
pistons due to such, weight, thereby tending to imperil their certainty of operation,
is obviated. Also accessibility, of parts, for various purposes is obtained. By the
particular construction of the piston valve and arrangement of slide valve spindle á
minimun of friction has to be overcome, at the same time good joints are obtained
and without loss of air and the pistons though coupled work freely and
independently upon their seats.
-
"

page_text: Improvements in Apparatus for Raising and Forcing Water and
'other Liquids.
**
We ISAAC SHONE and EDWIN AULT, both of Pentrefelin House, Wrexham 'in
the County of Denbigh, North Wales, Civil and Mining Engineers' do hereby
declare the nature of the said Invention for IMPROVEMENTS IN APPARATUS FOR
RAISING AND FORCING WATER AND OTHER LIQUIDS'and in what' manner the same
is to be performed, to be particularly described and ascertained in and by the
following statement :-
}
F
'
This Invention has for its object certain improvements in apparatus for raising
and forcing water and other liquids, being improvements upon apparatus set forth
in the Specification of Letters Patent 'N° 3524 AD 1878, and the following is a
description of this Invention in such full, clear and distinct terms as to enable any
one skilled in the art to which it belongs to put the same into practice, reference
being had to the annexed two sheets of Drawings, making a part of this
Specification, and to the letters and figures of reference marked thereon, like
letters and figures being used to denote the same, or corresponding parts throughout
the various views.
:
DESCRIPTION OF THE DRAWINGS.
2 1
Figure 1 is a side elevation of an apparatus constructed according to our
Invention.
'
Figure 2 is an end section through X X Figure 1. 16
Figure 3 is a plan of Figure 2.
".
The part of the Specification of the Invention of Letters Patent No 3524/78
which these present improvements have particular reference to is, the valve
apparatus for governing, or regulating the admission to and exhaust from the
ejectors, of compressed air; particularly in reference to Figures 10 10 and 10B.»
An apparatus constructed according to this present Invention consists of the
following construction and arrangement of. parts, reference being had to the
Drawings. A Figure 1 is the upper portion of the ejector, or apparatus for raising
and forcing water, or other liquids as described in the Specification of.. Letters
Patent No 3524/78, namely by the agency of compressed air which is supplied, to
and discharged from the apparatus A through the pipe B. by the agency of a valve
operated by a rod C, and floats. within the apparatus A. According to our/present
Invention the valve of the apparatus A is of the piston type. having a double
piston D D the two pistons. D D' being connected together by .a. rod. or bar. D'
which allows each of the pistons D D¹ to work freely on their individual seats E-E¹.
The valve, namely the pistons D D' work in as cylinder Fprovided with two

page_text: "
The
annular passages G G¹ and ports g g². The annular passage G and ports g being
the passage and ports for the admision of compressed air, and the passage G¹ and
ports g¹ being the passage and ports for exhausting the compressed air.
compressed air is led to the passage G (from any suitable air compressing
machinery) through the pipe H and the exhaust air is led from the passage G¹ and
escapes through the pipe J. These pipes H and J are connected at one side of the
cylinder F as shown at Figures 2 and 3, and on the opposite side of the cylinder F
there is provided a cover I so that access can be had to the valve and ports for any
desired object. The space between, the, pistons; D.Dis in connection with the
interior of the ejector A through a passage B¹ and the pipe B leading to and from
the ejector A. An annular ring a is formed in the cylinder F and between the two
pistons D D¹ the ends of the ring a projecting and serving as seats E E' for the
inner ends of the pistons D D¹ to bear against. Rings d d' of soft metal, or wood,
or other suitable material are formed, or let in the inner ends of the pistons D Di
Eto serve as seats in them. The outer endstof 'the pistons D D are provided with
"cup leathers
ee to form joints between, the pistons and the sides of the
cylinder F. The valve, namely the pistons D D¹ is propelled forwards and
backwards by the compressed air which is led by the ports and passages h h¹ to
each end of the cylinder F. These ports.h h¹ being alternately, opened and closed
to each end, of the cylinder F by a slide valve K of the "Trick.,.type. This
valve K works at each end on a face i on the upper portion of the cylinder F. and
is enclosed by a casing L bolted, to, the cylinder F. In the valve face i there are,nt
the exhaust end of the cylinder two ports, namely the port h and, the port L. The
port h being for supplying and exhausting one end of the cylinder F and the port
leading to the annular passage G' of the main exhaust and serving as an exhaust
port for both ends of the cylinder through the "Trick "passage of the valve K.
The port at the opposite, end of the cylinder serves to supply that end of the
cylinder and to exhaust into the Trick" passage of the valve K. Compressed air
is supplied to the slide valve casing L by a passage, or port m which communicates
between the annular casing G, of the main air supply and the interior of the valve
casing L and the compressed air is supplied to the, opposite ends of the cylinder F
by the ports h h¹ above specified alternately by the working of the slide valvė K
and exhausted therefrom through the "Trick" passage of the slide valve K which
is always in communication with the exhaust annular passage G¹. The slide
valve K is worked by a rocking arm or lever N placed inside the slide valve
casing L. This arm N. is mounted upon the horizontal shaft O which passes
through a stuffing box P in the valve casing L to the outside where it is connected
by a coupling to a shaft 0% which bears in a bracket Q and carries a lever R by
which it is worked, namely rocked, through the lever R being connected to the cup
and float rod C of the ejector. A. The lever R is provided with a weight R¹ which
counterpoises the cup and float of the ejector..and the rod C. The bracket Q is
supported by and bolted to the support of the cylinder F, or when the cylinder F
is on, or close to the ejector A. the bracket may be supported by ejector A.
15
Access is had to the interior of the slide valve casing L.by means of a removeable
cover I in which is formed the stuffing box P for the valve spindle or shaft O
before spoken of.
By the improved construction of the apparatus as above specified and the
arrangement of its parts we obtain several advantages amongst which are the
. following. The counterpoise weight R¹ being placed away from the apparatus all
undue, or unequal pressure upon the pistons, that might be acting upon such
pistons due to such weight, thereby tending to imperil their certainty of operation,
is obviated. Also accessability of parts for various purposes is obtained. By the
particular construction of the piston valve and arrangement of slide valve spindle a
minimum of friction has to be overcome, at the same time good joints are obtained
Adand without loss of air and the pistons though coupled work freely and
independently upon their seats.
i
•

page_text: Having now particularly described and ascertained the nature of our said
Invention and in what manner the same is to be performed, we declare that what
we claim is
First. Constructing valves of the type herein set forth with their pistons'
connected as and for the purposes described.
Second. Arranging the operating lever and counterweight mechanism separate
from the valve casing as and for the purposes set forth.
Third. Constructing valves of the type herein described with covers (such as
I and L¹) as and for the purposes set forth.
Fourth. The combination of lever R rod O lever N and valve K arranged and
constructed as and for the purposes described and shown in the Drawings.
Fifth. The arrangement and construction of valves and valve casings as set forth
and shown in the Drawings.