IMPROVEMENTS IN APPARATUS FOR RAISING AND FORCING LIQUIDS
Year: 1883

page_text: LETTERS PATENT to John Howard Kidd of Wrexham in the County of
Denbigh Engineer for an Invention of "IMPROVEMENTS IN APPARATUS FOR
RAISING AND FORCING LIQUIDS"
"
PROVISIONAL SPECIFICATION left by the said John Howard Kidd at the
Office of the Commissioners of Patents on the 28th February 1883.
JOHN HOWARD KIDD of Wrexham in the County of Denbigh Engineer
"IMPROVEMENTS IN APPARATUS FOR RAISING AND FORCING LIQUIDS
"
The object of my Invention is to construct a simple and economical apparatus
for raising and forcing liquids.
In performing my Invention I make use of a cylindrical or other shaped vessel
fitted with inlet and outlet valves for the admission and discharge of the liquid.
In the top cover of this vessel are fitted one or more self-acting air valves and a
pipe with a tap to regulate the admission of steam: this tap is open while the
apparatus or elevator is at work and it may be fitted with a back pressure valve,
if required. prefer to immerse this apparatus in water and to put the discharge
pipe inside the water chamber so as to obtain a large condensing surface and to
use steam of high pressure or the water or other liquid may be conveyed to the
elevator by gravitation suction or otherwise.
By another method when steam is admitted and cut off at each stroke as
described in the Specification to Letters Patent N° 1609 granted to me on the
13th day April 1881. I prefer to use an equilibrium valve to the spindle of
which is attached the vacuum valve so that these valves will be acted upon
simultaneously by means of a lever, cam, or eccentric.
In one arrangement the vacuum valve is closed and the steam turned on by the
lever cam or eccentric and a dead weight or spring attached to the spindle reverses
the action at each stroke.
In another arrangement the vacuum valve is closed and the steam admitted by
a spring or in other convenient manner and the lever cam or eccentric forces open
the vacuum valve and shuts off the steam during part of each stroke sufficient to
allow of the vessel being filled.

page_text: SPECIFICATION.in pursuance of the conditions of the Letters Patent filed
by the said John Howard Kidd in- the Great Seal Patent Office on the
28th August 1883.
JOHN HOWARD KIDD, of Wrexham in the County of Denbigh, Engineer.
"IMPROVEMENTS IN APPARATUS FOR RAISING AND FORCING LIQUIDS'
"
The object of my Invention is to construct a simple and economical apparatus
for raising and forcing liquids.
In performing my Invention I make use of a cylindrical or other shaped vessel
fitted with inlet and outlet valves for the admission and discharge of the liquid.
In the top cover of this vessel are fitted one or more self-acting air valves and a
pipe with a tap to regulate the admission of steam: this tap is open while the
apparatus or elevator is at work and it may be fitted with a back pressure valve,
if required. I prefer to immerse this apparatus in water and to put the discharge
pipe inside the water chamber so as to obtain a large condensing surface and to
use steam of high pressure or the water or other liquid may be conveyed to the
elevator by gravitation, suction or otherwise.
By another method when steam is admitted and cut off at each stroke as
described in the Specification to Letters Patent N° 1609 granted to me on the
13th day of April 1881 I prefer to use an equilibrium valve, to the spindle of
which is attached the vacuum valve so that these valves will be acted upon
simultaneously by means of a lever, cam, or eccentric. In one arrangement the
vacuum valve is closed and the steam turned on by the lever, cam, or eccentric,
and a dead weight or spring attached to the spindle reverses the action at each
stroke.
In another arrangement the vacuum valve is closed and the steam admitted by
a spring or in other convenient manner and the lever, cam, or eccentric forces open
the vacuum valve and shuts off the steam during part of each stroke sufficient to
allow of the vessel being filled.
.
And in order that my Invention may be fully understood and readily carried
into effect I will proceed to describe the accompanying two Sheets of Drawings
reference being had to the figures and letters marked thereon.
Fig. 1 is an elevation, and Fig. 2 a plan of my improved apparatus for raising
and forcing liquids. Fig. 3 is an elevation and Fig. 4 a plan of a modification of
my Invention and Fig. 5. is a section of the double beat steam admission valve.
Fig. 6 is an elevation partly in section of another modification of my Invention.
Fig. 7 is a plan and Fig. 8 is a sectional elevation of the equilibrium steam
admission valve and Fig. 9 is a sectional view of the same showing the valve ports.
Fig. 10 is a side view and Fig. 11 a plan, both on an enlarged scale of the inlet
valve.
Similar letters refer to similar parts throughout the several views.
In Figs. 1 and 2. a is the cylindrical vessel which may be of other convenient
shape, if desired, fitted with an inlet valve b, see Figs. 10 and 11, an internal
discharge pipe c, one or more air valves d and a steam pipe e with a tap (not
shown in the drawings) to regulate the admission of steam and fitted with a back
pressure valve, if required. The apparatus, shown in Figs. 1 and 2 is immersed in
water or other liquid to the level shown by the water line. In Fig. 1 the
discharge pipe c is fitted inside the vessel a so as to obtain a large condensing
surface for the steam. Steam of high pressure is used by preference and the steam
being turned on by opening the connection with the boiler it enters the vessel a
through the steam pipe e, closes the air valved and pressing on the surface of the
liquid in the cylinder a shuts the inlet valve b and forces the liquid through the
discharge pipe c to which is fitted a back pressure valve (not shown in the
drawings) to prevent the return of the liquid. The steam becomes condensed in

page_text: its passage down the vessel a and so loses its force which allows the air valve d to
be opened by atmospheric pressure and thus admits air to. the vessel a. Liquid
again rises in the vessel through the inlet valve b until sufficient steam has been
admitted when the stroke is repeated: the pump or elevator being automatic
continues to work so long as steam is admitted.
In the modification of my Invention shown in Figs. 3 and 4 I use a double beat
steam admission valve e¹ see Fig. 5 and to the spindle of this valve I attach the air
valve d as shown.
The apparatus is immersed in water to the level of the water line and its action
is as follows:-The steam being turned on lifts the double beat valve e¹. by reason
of the greater area of the top face and simultaneously closes the air valve d secured
to the same spindle, then pressing on the surface of the liquid in the cylindrical
vessel a, closes the inlet valve b and forces the liquid through the back pressure
valve c¹. and the discharge pipe c. The steam loses pressure in its passage down
the vessel a and the air valve d is forced open by atmospheric pressure and drives
the double beat valve e¹. on to its seat, thus cutting off steam. Liquid rises in the
vessel a through the inlet valve b and steam again blows open the double beat
valve e¹. and the action is repeated so long as steam is supplied.
In another modification of my Invention shown in Fig. 6 I use an equilibrium
steam admission valve having two valve faces upon the same spindle f, one valve e
to control the admission of steam through the steam pipe e; the other to act as the
air valve d: This valve spindle f is actuated by a lever g or by a cam or other
suitable mechanism to impart a reciprocating motion to the valves, alternately
admitting the steam and closing the air valve d and cutting off the steam and
opening the air valve. The action is similar to that already described with
reference to the other two elevators. The steam pressing on the liquid closes the
inlet valve band opens the outlet valve and discharges the contents of the
cylinder.
This apparatus being independent of condensation can be placed in any position
below the water level and the exhaust steam taken to a condenser.
To convert the elevator shown in Fig. 6 into a suction pump I remove the
bend h and screw in its place an ordinary plug in the centre of which is fixed a
small pipe which is tapped into any convenient part of the discharge column c to
allow a small jet of water to return into the cylinder a.
The action is as follows:-Steam being admitted into the elevator, the end of
the small pipe is closed (cutting off the jet of water) until its contents have been
discharged, on the return stroke the steam is cut off and the jet of water through
the pipe falls into the cylinder to condense the steam and form a vacuum into
which the water rushes ready for the next stroke.
Having stated the nature of my Invention and described the manner of
performing the same
I declare that I claim
1. In an elevator or pump the peculiar construction of the steam admission
valve substantially as and for the purposes described and as shown with reference
to Figs. 6, 7, 8 and 9
2. The improvements in apparatus for raising and forcing liquids substantially
as herein shown and described.
In witness whereof I the said John Howard Kidd have hereunto set my hand
and seal this twenty-third day of August One thousand eight hundred and eighty
three.
JOHN HOWARD KIDD (L.S.)