Improved Refrigerating Apparatus.
Year: 1894

page_text: Date of Application, 21st June, 1894-Accepted, 21st June. 1895
Improved Refrigerating Apparatus.
I, MORITZ FRANK, Merchant of 84 Schwanthalerstrasse Munich in the
Kingdom of Bavaria, Germany, do hereby declare the nature of my invention and
in what manner the same is performed to be particularly described and ascertained
in and by the following statement:-
The present invention consists of an improved refrigerator system in which the
absorption of heat by the volatilisation of fluid carbonic acid is employed for the
production of a lower temperature thus obviating the necessity of employing
natural or artificially produced ice in certain branches of the industry such for
instance as breweries, and consequently reducing considerably the working costs.
In carrying out the process, the carbonic acid is taken from the gasometer by a
combined suction and pressure pump and driven into a condenser, where the heat
developed by the condensation is reduced or neutralised by a current of cold air,
led along the inside and outside of the condenser. From the condenser the com-
pressed carbonic acid is taken into the refrigerator, in which the liquid to be cooled
is present in a coiled or otherwise arranged tube system and in which the said
carbonic acid is volatilised and absorbs heat from the said tube system thus
cooling the contents thereof. The carbonic acid is then pumped by a second pump
from the refrigerator back into the condenser or into suitable receptacles as inay
be required.
And in order to make the present invention more easily intelligible reference is
had to the accompanying drawing in which similar letters denote similar parts
throughout the several views:
Fig. 1 being a side elevation of the apparatus and
Fig. 2 a plan of the same showing the refrigerator in section.
which
B is the gasometer for the carbonic acid, D is the condenser, A the pump
draws the gas by suction from the gasometer and pumps the same into the
condenser D. G is the refrigerator, in which the pipe system H for the reception
of the liquid or the like, to be cooled is arranged, is a pipe connection from the
condenser D to the refrigerator, having a suitable cock or valve, A' is the second
pump to take the gas volatilised in the refrigerator, either back to the condenser D
or to suitable receptacles 1.
The operation is as follows:-
The gas is pumped from the gasometer B into the condenser D, is then allowed
to pass into the reservoir 1 where it expands, cooling the pipe system H and the
contents thereof, it is then pumped from the reservoir G by means of the pump A¹
either back to the condenser and reused or to suitable receptacles 1 I.
Having now particularly described and ascertained the nature of my invention
and in what manner the saine is performed 1 declare that what I claim is
The combination of a gasometer B, a condenser D and a refrigerator G, having
suitable pipe systems therein for the liquid to be cooled, a pump A having
connections from the gasometer and to the condenser, and a second pump A'

page_text: having connection from the reservoir or refrigerator G and to the condenser D,
or to suitable receptacles II in the manner and for the purpose substantially as
described.
Dated this used
W. P. THOMPSON & BOULT,
Agents for the Applicant.