IMPROVEMENTS IN THE CONSTRUCTION OF CONDENSING PUMPS AND CYLINDERS USED IN THE AED TED WATED"
Year: 1881

page_text: LETTERS PATENT to James McEwen and Simeon Spencer, both of Manchester,
in the County of Lancaster, for an Invention of "IMPROVEMENTS IN THE
CONSTRUCTION OF CONDENSING PUMPS AND CYLINDERS USED IN THE
AED TED WATED"
MANILA WILDE 05
PROVISIONAL SPECIFICATION left by the said James McEwen and Simeon
Spencer at the Office of the Commissioners of Patents on the 8th July 1881.
JAMES MCEWEN and SIMEON SPENCER, both of Manchester, in the County of
Lancaster. "IMPROVEMENTS IN THE CONSTRUCTION OF CONDENSING PUMPS AND
CYLINDERS USED IN THE MANUFACTURE OF AERATED WATERS."
In a suitable frame I mount the crank shaft, having fast and loose driving pulleys
at one end and a fly wheel at the other.
Above the crank shaft are mounted the pump cylinders, which are lined with
glass tubes, and are swung upon hollow trunnions above so that they can oscillate,
the lower ends of the piston rods working direct upon the crank pins.
In connection with the inner ends of the hollow trunnions are fixed junction
pipes provided with valves, and having their lower ends in connection with the
vessel containing the water and gas, and at their upper ends with the top of the
condensing cylinder.
The latter has a dome-shaped top, and at its apex is a chamber having a
perforated top and bottom, and filled with a material known as glass-wool."
«
The dome is bolted by means of a flange at the bottom onto a flat plate, and
upon the latter rests an inner dome or bell about two inches and a half less in
diameter than the outer one, and the space between these two domes may also be
wholly or partially filled with glass-wool."
<
Beneath the lower edge of the inuer dome hollows or spaces are formed in the
bottom plate at intervals to allow the gas and water to pass from the outer dome or
cylinder into the inner one, and in the centre of the bottom plate a metal bush or

page_text: short tube is screwed, into which is fixed the lower end of a glass tube, the upper
end of which extends to nearly the top of the inner dome.
The lower end of this metal bush or short tube is connected to the bottling
apparatus.
The gas and water being forced in at the top of the outer dome or cylinder, in
passing through the "glass wool" becomes thoroughly mixed and incorporated
together without the use of revolving agitators, and then pass under the lower
edge of the inner cylinder into the interior of the same, and the aerated, water
is by means of the glass tube drawn off from the upper part of the inner dome
or cylinder where there is the least disturbance.
The outer dome or cylinder is provided with a water gauge.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said James McEwen and Simeon Spencer in the Great Seal Patent Office
on the 7th January 1882.
JAMES MCEWEN and SIMEON SPENCER, both of Manchester, in the County of
Lancaster. "IMPROVEMENTS IN THE CONSTRUCTION OF CONDENSING PUMPS AND
CYLINDERS USED IN THE MANUFACTURE OF AERATED WATERS."
This Invention relates, first, to the construction and arrangement of the condensing
pump itself; and, secondly, to the construction of the condensing cylinder or vessel
in connection therewith, wherein the impregnation and saturation of the water
with the gas takes place.
The objects of the Invention being to simplify and economize the construction of
the apparatus, and to effect the maximum amount of saturation with the minimum
amount of disturbance of the water being charged with the gas.
Such being the nature and object of our said Invention, we will now proceed to
describe in detail the manner in which the same is to be or may be performed or
carried into practical effect; and in order that the same may be clearly understood,
we have annexed hereunto a Sheet of Drawings illustrative thereof, and have marked
the same with figures and letters of reference corresponding with those in the
following explanation thereof :-
Fig. 1 in the annexed Drawing is an elevation of the whole apparatus complete ;
Fig. 2, a section of the condensing cylinder or saturating vessel; Fig. 3 is a section
of a modification of the same, and Fig. 4 is a section of a form of safety valve which
I prefer to use in connection with such vessel.
I may here remark that the apparatus shown in the Drawing is a single pump
arrangement, but I sometimes make this machine in a double-acting form, that is,
with two condensing pumps.
The frame a, a, of the apparatus supports the main driving shaft b, b, which is
fitted with fast and loose driving pulleys c, c, and a fly wheel d, d. Above the
driving shaft I mount the pump cylinder e, e, which is (by preference) lined with a
glass tube, and swings upon hollow trunnions f, f, above, so that it can oscillate,
the lower end of the piston rod g, g, working direct upon the crank pin'h, h.
In connection with the outer or open end of the hollow trunnion f, f, is fitted a
junction pipe i, i, having an inlet valve for the gas and water at k, l, and an
outlet valve at 1, 1, leading to the top of the condensing cylinder or saturating
vessel m, m.
«
The latter has a dome-shaped top, and at its apex (see Fig. 2) is a chamber n, n,
having a perforated top and bottom, and filled with a material known as glass-
wool," or with block tin turnings, or with a substance known as "shell tin," which
latter is made by pouring molten tin from a height of about three feet into water.
The dome m, m, is bolted by means of a flange at the bottom onto a flat plate
forming part of the frame a, a, and upon this plate rests an inner dome or bell o, o,
about two inches and a half less in diameter than the outside one m, m, and the
space between these two domes may also be wholly or partially filled with the
"glass wool" or other substances above named.
Beneath the lower edge of the inner dome o, o, hollows or spaces p, p, are formed
in the bottom plate at intervals to allow the gas and water to pass from the outer
dome or cylinder m, m, into the inner one o, o, and in the centre of the bottom
plate is screwed a metal bush or short tube q, q, into which is fixed the lower end
of a glass draw off tube r, r, the upper end of which extends to nearly the top of
the inner dome o, o. The lower end of the metal bush or tube q, q, is connected
to the bottling apparatus.

page_text: The gas and water being forced in at the top of the outer dome or cylinder m, m,
in passing through the "glass wool" or other suitable material become well mixed
and incorporated together; the water being thoroughly saturated with gas without
the use of revolving agitators then pass under the lower edge of the inner cylinder
or dome o, o, into the interior of the same, and the aerated water is, by means of
the glass tuber, r, drawn off from the upper part of the inner dome or cylinder o, o,
where there is the least disturbance.
The outer dome or cylinder m, m, is provided with a water gauge 8, 8, and a
safety valve t, t.
In the modification of the condensing cylinder or saturating vessel shown at
Figs. 1 and 3 I substitute for the inner dome a convex disc o¹, o', slightly smaller in
diameter than the outer dome or cylinder m, m, but connected to it at intervals, so
that the aerated water after being saturated flows down the sides of the vessel m, m,
without creating any disturbance.. u, u, are discs of block tin, which assist the
dispersion of the gas and water through the mass of "glass wool" or other suitable
material. In this case the "draw-off" pipe r, r, is fixed in the top of the cylinder
or saturating vessel m, m, and the aerated water is drawn off from the bottom of
he same.
114
seen that
In Fig. 4 (which is an enlarged section of the safety valve) it will be
the stud t, t, at the top of the same passes freely through a hole in the cap v, v,
but is made gas tight by a leather diaphragm w, w, and hence, as there is no
spring and friction of a stuffing box, the lever can be weighted to the exact pressure
required.
وزارة
The outlet x, x, leads to the aerated water reservoir, so that there is no escape of
the gas or water into the atmosphere.
Having now described the nature and object of our said Invention, together
with the manner in which the same is to be or may be performed or carried into
practical effect, we wish it to be understood that we claim as our Invention,
First. The construction of the oscillating condensing pump with its piston rod
connected direct to the crank pin.
Secondly. We claim the peculiar construction of the dome-shaped condensing
cylinders or saturating vessels and their adjuncts.
Thirdly. We claim the use of "glass wool," block tin shavings, "shell tin," or
other similar materials in the interior of such or similar condensing cylinders or
saturating vessels, all substantially in the manner and for the purposes hereinbefore
set forth, and as illustrated by the Drawings annexed, and
Fourthly. We claim the general construction and arrangement of the apparatus,
as herein before described and illustrated by the Drawings annexed.
In witness whereof, I, the said James McEwen (on behalf of myself and
the said Simeon Spencer), have hereunto set my hand and seal, this Fifth
day of January, in the year of our Lord One thousand eight hundred and
eighty two.
JAMES MOEWEN. (L.S.)