Improvements in or relating to Pumping Apparatus for Ice Making and other Purposes.
Year: 1895

page_text: Date of Application, 23rd Jan., 1895-Accepted, 18th May, 1895
COMPLETE SPECIFICATION.
Improvements in or relating to Pumping Apparatus for Ice Making
and other Purposes.
I, EMIL WANDNER of 8 Kaiser-Wilhelms-platz, Dresden, Germany, Master
Tin Worker, do hereby declare the nature of this invention and in what manner
the same is to be performed, to be particularly described and ascertained in and by
the following statement :-
The present invention is a machine for producing ice which may be used as
well for the raising of fluids by the pressure of compressed carbonic acid gas
or air.
This invention is illustrated in the annexed drawings in which
Fig. 1 shows a vertical section through the line x-x of Fig. 3.
Fig. 2 is a vertical section through the line y-y of Fig. 3.
Fig. 3 shows a top view and Fig. 4'is a side view on a reduced scale.
The apparatus consists of the cylinder a, which by means of a horizontal central
partition b, is divided into two parts of equal height. In each of these parts
there is a piston respectively c, and d, connected together by means of a vertical
piston rode and driven together. On each side of this cylinder a
openings f, g, g', h, h¹, i. i¹, fitted to the upper and lower end of each half
cylinder and those on each side communicating with corresponding spaces of the
two half cylinders are connected together by means of tubes k, l, m, and n.
are.
Each of these tubes is closed in its extended part below the cylinder by a stop
valve o, p, q, r, and these valves are so arranged that valves o, and q, are kept
closed by an excess of pressure from above and p, and r, by one from below
upwards.
Underneath the stop valves each pair of tubes unites into the single tubes u, or v,
The ends of
and to side extensions of these tubes, cocks s, and t, are attached.
the tubes are connected to a refrigerating coil placed in the ice chest:
The tube u has another branch connecting it to the carbonic acid container w.
The cocks, connects the interior of the ice machine with the air, whilst the cock t,
connects the ice machine to a fluid to be raised or to be impregnated with carbonic
acid.
If the apparatus is to be used as an ice machine, the cocks s, and t, remain
closed. By the movement of pistons c, and d, carbonic acid is drawn from the
container W,
and leaves through tube v, the cylinder a, in the direction of the arrow
(Figs. 2 and 4) traverses the parts of an ice machine of known construction,
which are arranged in the ice container for the purpose of producing therein a
low temperature in the same manner as in an ordinary ice machine, finally the
carbonic acid enters again into the apparatus through tube u, in the direction of
the arrow (Figs. 2 and 4).
These parts of the ice machine are generally known and are therefore not
represented in the annexed drawings.
By this movement the carbonic acid used is always returned to the container so
that loss only arises from leakages. The .cock of the carbonic acid container
remains open during the process. If a fluid, as for example, beer, is to be raised
from a cask or impregnated with carbonic acid cock of the container remains open..
At the same time the cock t is opened. The pressure of the escaping carbonic
acid is generally sufficient to effect the raising, but in case of necessity the action
can be strengthened by pumping the carbonic acid. If it is desired only to use air

page_text: for the lifting, the cock on the carbonic acid container is closed, and the cocks,
through which atmospheric air can enter the cylinder, is opened. In such cases
where by the assistance of this apparatus the lifting of fluids is effected, it acts
only as a pump. The entire apparatus is enclosed in a case and cooled with
water.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
An ice-machine with pressure or pumping apparatus for raising liquids, distin-
guished by a double cylinder on which each cylinder at the top and the bottom
are provided with correspondingly connected tubes, which tubes terminate in a coil
placed in the ice-chest and of which furthermore one tube can be connected
either to a carbonic acid container or with the atmospheric air, and the other with
the liquid to be raised or to impregnate it with carbonic acid, as herein described
and set forth.
Dated this 23rd day of January 1895.
S. S. BROMHEAD,
97, Newgate Street, London, E.C., Patent Agent.