Improvements in and relating to Refrigerating Rooms and the like.
Year: 1892

page_text: COMPLETE SPECIFICATION.
Improvements in and relating to Refrigerating Rooms and the like.
We, WILHELM BOLDT and PETER VOGEL, both of Kleine Reichenstrasse No. 3
Hamburg in the Empire of Germany, Engineers 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 object of this invention is to improve the cooling effect of ice or of the
mixture of ice and salt used in ice rooms or other refrigerating chambers by
arranging the ice or mixture not only around the chamber but at the same time
in such a way that the air contained in the said room or chamber may by alteration
in its density pass continually or repeatedly in contact with the ice or mixture
and thus be effectually and quickly reduced to a very low temperature. This effect
is produced by stacking the ice around the inside of the vertical sides of the
chamber and supporting it there by, behind or upon, frames formed by a number
of separated surfaces between which the air from the interior space of the chamber
may pass in substantially horizontal streams in contact with the ice and salt mixed
therewith. In such a chamber an interior temperature of about
7° R. may be
reached while the outside temperature is +15° R., and this without the use of any
mechanical devices or chemical freezing mixtures.
In the annexed drawing,
-
Fig. 1 is a sectional elevation and Fig. 2 a sectional plan of an ice room con-
structed upon the principle of this invention.
Fig. 3 is a cross section illustrating its application to ships.
Fig. 4 is a section and Fig. 5 a part elevation of a detail of construction on a
larger scale.
The chamber K is of a construction such as to effectually exclude the passage
of heat from the outside to the interior of the chamber. At suitable distance
from the side walls of this chamber are erected the uprights a each of which is
provided at its upper end with a jack screw b intended to be firmly screwed up
against the roof and so hold the upright firmly in its place. The spaces between
the uprights a is occupied by a number of metal slats c c forming a sort of venetian
screen. These slats are preferably inclined, their lower edges being towards the
wall of the chamber; and the uprights are so placed that the space between the
slats and the wall may receive and hold a lining of pieces of ice of convenient
thickness. Care should be taken that the smaller pieces of ice, also mixed with
salt, are equally distributed over the slats c so that the air may pass amongst the
ice and the latter expose a surface as free as possible for the passage of air. The
inclination of the slats c causes the salt water to flow off the plates, and at the same
time gives direction to the warmer aud generally vitiated currents of air by which
the latter ascend to the roof of the chamber where they pass out at pipe i which
is provided with an adjustable register k. The salt water and water melted from
the ice is carried off through the pipe at the bottom of the chamber.
In applying this invention to ships for conveying meat through tropical seas or
other similar purposes, it is convenient to arrange also a central ice wall as shown
in Fig. 3 this being effected by the use of two such systems of uprights and slats.
The uprights which are employed at the sides of the ship, are made to follow the
curvature of the interior of the ship's side being arranged at a suitable distance
therefrom.
A convenient method of fixing the slats c is shown in Figs. 4 and 5. The edges
of the plates are bent over rods d d which project beyond the ends of the plates.
The rod d on the one side rests in hooks e e on the uprights a and the opposite
rod falls and rests against the rear sides of the uprights.

page_text: For filling the spaces with ice properly distributed hoppers of a trough like
nature may be used these being hinged to tip into the space behind the stack of
slats and supported by hooks on a cross bar o connecting the two uprights a.
g
Having now particularly described and ascertained the nature of this said inven-
tion and in what manner the same is to be performed we declare that what we
claim is ;-
1) In an ice room or the like, the arrangement of a lining or linings of ice held
between upright frames and the walls of the room, or between two upright frames,
the said frames allowing air to pass in substantially horizontal streams between
the ice lining and the free space of the room and adapted to deflect the vitiated
currents upward to an outlet.
2) In an ice room or the like, posts a having jack screws 6 for fixing them as
set forth, in combination with a series of inclined slats e the whole forming a
retaining frame for the purposes described.
3) The combination with a frame consisting principally of posts a and inclined
slats of a hinged tipping hopper ƒ arranged above said slats for the purpose set
forth.
Dated thi
י
HERBERT & Co.,
18, Buckingham Street, Strand, London, W.C., Agents to Applicants.