and Forcing Liquids by the Direct Action of Steam.
Year: 1885

page_text: and Forcing Liquids by the Direct Action of Steam.
I JOHN HOWARD KIDD, of Wrexham, in the County of Denbigh, Engineer, do
hereby declare the nature of said Invention for IMPROVEMENTS IN MACHINERY OR
APPARATUS FOR PUMPING, RAISING AND FORCING LIQUIDS BY THE DIRECT ACTION
OF STEAM, to be as follows:—
My improvements relate to the apparatus for which Letters Patent No 1090
were granted to me on the 28th day of February 1883 and consist chiefly in
admitting the liquid to be pumped, raised or forced, at or near the top of the
cylindrical or other shaped vessel in addition to or instead of at or near the bottom
of the vessel as described in my said Patent.
The vessel is mounted upon a foot or hollow bedplate and in the top of the neck
of the vessel I employ as before a double beat steam admission valve having
two valve faces of different areas on the same spindle on which is also fixed the
vacuum or air valve. Near the top of the vessel but below the steam valve
I connect the inlet or suction pipe which is controlled by a clack or other suitable
valve preferably hung vertically in order to render the valve more sensitive; or
I may employ two inlet or suction pipes and valves, one as described, the other
delivering the liquid to be raised or forced into the foot or hollow bedplate; these
pipes may or may not be connected together at a point below the valve delivering
into the foot. The delivery pipe is connected to the foot of the vessel and is
provided with a back pressure valve as usual.
The action is as follows:-Steam is turned on to heat the vessel and is then shut
off for a few seconds thereby creating a partial vacuum in the vessel as the steam
condenses and drawing liquid into the vessel from the inlet or suction pipe or
pipes. Steam is then fully turned on to drive the liquid out of the vessel through
the delivery pipe until the steam reaches the foot when it suddenly expands and
condenses thereby reducing the pressure in the vessel below atmospheric pressure
which causes the valve at the top of the vessel to drop and cut off steam the liquid
falling from the suction pipe below the steam valve effecting the complete con-
densation of the steam and instantly refilling the vessel in readiness for the next
stroke. The steam valve after it has dropped as above described is held down on
its seat by the pressure of the atmosphere acting on the vacuum or air valve on the
same spindle until the vessel is filled with liquid when the atmospheric pressure
being overcome the valve is opened by the steam and liquid is ejected as before.
Dated this 00-d daw of Ontahan 100
H. B. BARLOW,
Agent for Applicant.

page_text: Improvements in Machinery or Apparatus for Pumping, Raising,
and Forcing Liquids by the Direct Action of Steam.
I JOHN HOWARD KIDD, of Wrexham, in the County of Denbigh, Engineer, do
hereby declare the nature of said Invention for IMPROVEMENTS IN MACHINERY OR
APPARATUS FOR PUMPING, RAISING AND FORCING LIQUIDS BY THE DIRECT ACTION
OF STEAM, and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement :-
My improvements relate to the apparatus for which Letters Patent N° 1090
were granted to me on the 28th day of February 1883 and consist chiefly in
admitting the liquid to be pumped, raised or forced at or near the top of the
cylindrical or other shaped vessel in addition to or instead of at or near the bottom
of the vessel as described in my said Patent.
And in order that my Invention may be fully understood and readily carried
into effect I will describe the accompanying Sheet of Drawings, reference being had
to the figures and letters marked thereon.
Figures 1 and 2 are elevations of my improved pumping apparatus and Figs. 3
and 4 are a plan and a sectional elevation of part of the same.
The vessel a which forms the main portion of the pump may be cylindrical as
shown or of any other suitable shape. This vessel is bolted to a hollow foot or
bed b, as also is the delivery pipe c which is provided as usual with a suitable back
pressure valve d. In the chamber at the top of the neck of the vessel a I employ
as described in my aforesaid Patent a double beat steam admission valve, on the
spindle e of which are fixed the two valves of different areas f and fl respectively
and also the vacuum or air valve g. The valves f and f¹ control the admission of
steam from the pipe h and the valve g controls the admission of air to the vessel a.
Near the top of the vessel but below the steam admission valves fand f¹ I connect
the inlet or suction pipe i which may be controlled by a ball valvej as shown in
dotted lines or by a clack valve or other suitable valve preferably hung vertically
in order to render the valve more sensitive. The inlet pipe i may be connected
as shown to the ordinary inlet or suction pipe k which admits the liquid to be
raised or forced through the clack valve to the foot b or the inlet pipe i may be
an independent pipe connected to the same or a different source of supply.
The action of the apparatus is as follows:-Steam is turned on and admitted
from the pipe h through the valves ff¹ to beat the vessel and is then shut off for
a few seconds thereby creating a partial vacuum in the vessel as the steam
condenses and so drawing liquid from the inlet pipe i through the valve jand
from the inlet pipe k through the valve into the vessel. Steam is then fully
turned on to drive the liquid out of the vessel through the valve d and the delivery
pipe cand this action continues until the steam descending the column reaches the
foot b where it suddenly expands and condenses thereby reducing the pressure in
the vessel to such a point that the atmospheric pressure acting on the vacuum or
air valve g causes the spindle e to drop and close the valves ff' thereby shutting
off steam, the liquid falling from the inlet pipe i effecting the complete condensation

page_text: of the steam thus ensuring the instantaneous refilling of the vessel in readiness for
the next stroke. The steam valves f and f1 after the spindle has dropped as
above described are held down on their seatings by atmospheric pressure acting on
the vacuum or air valve g on the same spindle e, until the vessel is replenished
with liquid when the atmospheric pressure being overcome the admission valves
are opened by the steam pressure and liquid is ejected through the delivery pipe o
as before.
If more convenient the ordinary inlet pipe k and valve can be dispensed with
and the liquid to be pumped, raised or forced drawn from the source of supply into
the vessel through the pipe i only. In this case the pipe i would be made of any
suitable diameter according to the volume of liquid to be dealt with, and a back
pressure valve or valves would be placed in any convenient part of the pipe
between the vessel and the source or sources of supply.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed, I declare that what
I claim is-
1. The general combination and arrangement of parts forming my improved
apparatus for raising and forcing liquids by the direct action of steam, substantially
as and for the purposes herein described and as illustrated by the accompanying
Drawings.
2. In apparatus for pumping, raising and forcing liquids by the direct action of
steam, admitting the whole or a portion of the liquid to be pumped, raised or
forced at or near the top of the vessel but below the steam admission valve,
substantially in the manner herein set forth for the purposes specified.
3. In apparatus for pumping, raising or forcing liquids by the direct action of
steam, the use and application of an inlet pipe connected at one end to the pump
or vessel near the top but at a point below the steam admission valve, said inlet
pipe being controlled by a suitable valve or valves and used either alone connected
directly to the source or sources of supply or in combination with the ordinary
inlet or suction pipe, substantially as and for the purposes herein set forth.