IMPROVED APPARATUS FOR RAISING WATER OR OTHER LIQUIDS
Year: 1879

page_text: LETTERS PATENT to John Clayton Mewburn, of 169, Fleet Street, in the
"
City of London, Patent Agent and Consulting Engineer, for the Invention of
IMPROVED APPARATUS FOR RAISING WATER OR OTHER LIQUIDS."
communication from abroad by Pierre Lefever, of St. Omer, France.
A
Sealed the 25th June 1880, and dated the 27th December 1879.
PROVISIONAL SPECIFICATION left by the said John Clayton Newburn at
the Office of the Commissioners of Patents on the 27th December 1879.
JOHN CLAYTON MEWBURN, of 169, Fleet Street, in the City of London, Patent
Agent and Consulting Engineer. "IMPROVED APPARATUS FOR RAISING WATER OR
OTHER LIQUIDS." [A communication from abroad by Pierre Lefever, of St. Omer,
France.]
The improved apparatus which forms the subject of the present Invention is
composed of a reservoir, at the upper part of which is a steam inlet pipe fitted with
a cock, and also with a valve, which latter is acted upon by a spring whose power
is stronger than the steam pressure. At the bottom of the said reservoir is a
suction pipe fitted with a valve, and at the side of the reservoir is a vessel whose
lower part is in direct communication with the lower part of the reservoir. Above
this vessel, and communicating therewith by means of a valve, is a delivery or
force pipe, and between this pipe and the upper part of the reservoir is a pipe of
small diameter also fitted with a valve. There is a manhole at the lower part of
the reservoir to enable it to be emptied and cleaned when required.
The action of the apparatus is as follows:-The reservoir is first filled with water
or liquid. Then the steam inlet cock is opened, and the steam entering the reservoir
and pressing upon the surface of the liquid forces the liquid into the delivery pipe.
The valve in the steam inlet pipe during this time is kept open by its spring,
which, as already stated, is stronger than the steam pressure. As soon as there is
equilibrium between the steam pressure on the liquid and the weight of the liquid
column in the delivery pipe, the steam in the reservoir cools, and this cooling is
hastened by a small stream of water which enters the reservoir by the small pipe
communicating between it and the delivery pipe. The stream then condenses,
forms a vacuum, and liquid is thus drawn up through the suction pipe into the
reservoir, the valve in the steam inlet pipe being now closed owing to the com-
bined action of the steam pressure above and the vacuum below. When the
vacuum in the reservoir diminishes the spring again raises this valve, steam again
enters the reservoir, presses on the liquid, and forces it into the delivery pipe, and
so on as before. Thus when the reservoir has been once filled with the liquid the
opening of the steam inlet cock enables the apparatus to work continuously and
automatically.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said John Clayton Mewburn in the Great Seal Patent Office on the
25th June 1880.
JOHN CLAYTON MEWBURN, of 169, Fleet Street, in the City of London, Patent
Agent and Consulting Engineer. "IMPROVED APPARATUS FOR RAISING WATER OR
OTHER LIQUIDS." (A communication from abroad by Pierre Lefever, of St. Omer.
France.)
The improved apparatus which forms the subject of the present Invention, and
an example of which is shown in the annexed Drawing, is composed of a reservoir A,
at the upper part of which is a steam inlet pipe E fitted with a cock R, and also
with a valve S, which latter is acted upon by a spring whose power is stronger
than the steam pressure. At the bottom of the said reservoir is a suction pipe B
fitted with a valve S, and at the side of the reservoir is a vessel C whose lower
part is in direct communication with the lower part of the reservoir. Above this
vessel, and communicating therewith by means of a valve S₁, is a delivery or
force pipe D, and between this pipe and the upper part of the reservoir A. 15 a
pipe R of small diameter, also fitted with a valve S¹. There is a manhole K at
the lower part of the reservoir to enable it to be emptied and cleaned when
required.
The action of the apparatus is as follows:-The reservoir A is first filled with
water or liquid. Then the steam inlet cock R is opened, and the steam entering
the reservoir A and pressing upon the surface of the liquid forces the liquid into
the delivery pipe D. The valve S in the steam inlet pipe during this time is kept
open by its spring, which, as already stated, is stronger than the steam pressure
As soon as there is equilibrium between the steam pressure on the liquid and the
weight of the liquid column in the delivery pipe, the steam in the reservoir cools,
and this cooling is hastened by a small stream of water which enters the resorvoir
by the small pipe R¹. The steam then condenses, forms a vacuum, and liquid is
thus drawn up through the suction pipe B into the reservoir A, the valve S being now
closed owing to the combined action of the steam pressure above and the vacuum
below. When the vacuum in the reservoir diminishes the spring again raises this
valve S, steam again enters the reservoir, presses on the liquid, and forces it into
the delivery pipe, and so on as before. Thus when the reservoir A has been once
filled with the liquid the opening of the steam inlet cock R enables the apparatus
to work continuously and automatically.
An important feature in this Invention is the single steam chamber and the
stream of condensing water acting in the manner explained.
And having now described the nature of the said Invention, and in what manner
the same is to be performed, I declare that I claim,-
Constructing apparatus for raising water or other liquids, substantially as herein-
before described and represented in the annexed Drawing.
In witness whereof, I, the said John Clayton Mewburn, have hereunto set my
hand and seal, this Twenty fifth day of June, One thousand eight hundred
and sihto