Year: 1887

page_text: Date of Application, 29th June, 1887
Complete Left, 29th Mar., 1888
Complete Accepted, 4th May, 1888.
I, FRANK ALBERT SMITH of Steelton, Pennsylvania, United States of America,
Gentleman, do hereby declare the nature of this invention to be as follows:-
.
My invention relates to domestic and other refrigerators and to apparatus for the
manufacture of ice.
My said invention is chiefly designed to improve the construction and increase the
efficiency of the apparatus described in the Specification of former Letters Patent
dated September 14 A.D. 1886 No. 11,667. This apparatus comprises a refrigerating
or preserving chamber and a vessel or compartment in which the temperature is
reduced to the ice forming or freezing point.
An important feature of my present invention is the provision of means whereby
the excess or overflow of the cold solution from the freezing chamber is utilized for
absorbing the heat from the air contained in the preserving chamber before being
conducted to the overflow chamber. By this means I avoid the inconvenience arising
from the very low temperature of the water in the overflow chamber when the excess
of the cold solution is conducted directly into the said chamber as described in the said
former specification.
My improved apparatus comprises an outer and an inner casing provided with any
suitable non-conducting material between the said casings. The interior of the
apparatus is divided into upper and lower compartments by a suitable partition. The
lower compartiment is provided with shelves and with a door and is used as a
refrigerating or preserving chamber, while the upper compartment is again divided
to form the freezing and the overflow chambers. A frosh water tank is situated at
the bottom of the overflow chamber and is provided with a fresh water supply pipe
which is connected with a water-main or other convenient supply. A pipe extends
from the bottom or near the bottom of the fresh water tank to near the top of the
overflow chamber and then down between the freezing and overflow chambers and
enters the freezing chamber at or near the bottom. The said pipe is provided with a
valve to regulate the supply of fresh water to the freezing chamber. This valve is
so arranged that it is operated from the outside of the apparatus by means of a

page_text: hand-wheel, thus obviating the necessity of raising the cover to regulate or adjust the
said valve.
A suitable stop cock is provided in the fresh water tank by which the water may be
drawn off for drinking or other purposes.
The freezing chamber is provided with suitable cans for containing the fresh water
which is to be converted into ice, as described in the said former specification; the
said cans are provided with flanges by which they are supported in a float, which is
kept in position in the freezing chamber by a suitable guide rod fixed to the bottom of
said chamber.
Instead of allowing the overflow from the freezing chamber to pass directly into
the overflow chamber as described in the said former Specification, I conduct the said
overflow by means of a pipe into a cooling coil in the preserving chamber and then
into the overflow chamber. It will be understood that the cooling solution in passing
through the coil of pipe in the preserving chamber will absorb the heat from the
atmosphere in the said chamber the temperature of the said cooling solution will
therefore be slightly increased before it passes into the overflow chamber, thereby
preventing the liquid in the said chamber from becoming too cold and thus interfering
with the proper working of the apparatus.
A suitable overflow pipe is provided to carry off the excess of liquid in the overflow
chamber.
Datod thic 20th day of June 1887
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London,
Agents for the Applicant.

page_text: Improvements in Apparatus for the Production of Artificial Cold
and for the Manufacture of Ice.
..
I, FRANK ALBERT SMITH, of Steelton, Pennsylvania, United States of America,
Gentleman 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 :—.
My Invention relates to domestic and other refrigerators and to apparatus for the
manufacture of ice.
;
My said Invention is chicfly designed to improve the construction and increase
the efficiency of the apparatus described in the Specification of former Letters
Patent dated September 14th A.D. 1886 No. 11667. This apparatus comprises a
refrigerating or preserving chamber and a vessel or compartment in which the
temperature is reduced to the ice forming or freezing point.
An important feature of my present Invention is the provision of means whereby.
the excess or overflow of the cold solution from the freezing chamber is utilized for
absorbing the heat from the air contained in the proserving chamber before being
conducted to the overflow chamber. By these means I avoid the inconvenience
arising from the very low temperature of the water in the overflow chamber when the
oxcess of the cold solution is conducted directly into the said chamber as described
in the said former Specification.
In the accompanying Drawing I have shown how my said Invention can be
conveniently and advantageously carried into practice.
Figure 1 is a vertical longitudinal central section showing one form of my improved
apparatus.
Figure 2 is a section on the line x, x Figure 1.
Figure 3 is a vertical longitudinal central section and
Figure 4 is a section on the line ', ' Figure 3 showing a modification of my said.
invention.
Liko letters indicate corresponding parts throughout the Drawing.
A is the box or case of the apparatus comprising an outer casing B and an inner
casing C provided with any suitable nonconducting material D between the said
casings. The interior of the apparatus is divided into an upper compartment E and
a lower compartment F by a suitable. partition G. The lower compartment Fis
provided with shelves and with a door and is used as a refrigerating or preserving.
chamber, while the upper compartment E is again divided to form the freezing
chamber H and the overflow chamber I. A fresh water tank J is situated. at the
bottom of the overflow chamber I and is provided with a fresh water supply pipe K
which is connected with a water-main or other convenient supply. A pipe L extends
from the bottom or near the bottom of the fresh water tank J to near the top of the
overflow chamber I and then down between the said freezing and overflow chambers H
and enters the freezing chamber H at or near the bottom. The said pipe L is pro-
vided with a stop valve M to regulate the supply of fresh water to the freezing
chamber H. This stop valve M is so arranged that it operates from the outside of
the apparatus by means of a hand-wheel N, thus obviating the necessity of raising
the cover to regulate or adjust the said valve.
A suitable pipe O having a stop cock P is provided in the fresh water tank, by
which the water may be drawn off for drinking or other purposes."
The freezing chamber H is provided with suitable cans Q for containing the fresh

page_text: water intended to be converted into ice, as described in the said former Specification.
The said cans are provided with flanges R by which they are supported in a float S
which is kept in position in the freezing chamber by a suitable guide-rod T fixed to
the bottom of said chamber.
Instead of allowing the overflow from the freezing chamber to pass directly into
the overflow chamber I as described in the said former Specification, I conduct the
said overflow by means of a pipo U into a cooling coil V in the preserving chamber F
and then into the overflow chamber I through the pipe U. It will be understood that
the cooling solution in passing through the coil V in the preserving chamber will
absorb the heat from the atmosphere in the said chamber, the temperature of the said
cooling solution will therefore be slightly increased before it passes into the overflow
chamber I, thereby preventing the liquid in the said chamber from becoming too
cold and thus interfering with the proper working of the apparatus.
A suitable overflow pipe W is provided to carry off the excess of liquid in the
overflow chamber.
Figures 3 and 4 show a modification of my said invention wherein the fresh water
delivered through the pipe K passes through a coil K' in the overflow chamber I and
thence through the pipe L to the freezing chamber H. The pipe L is provided with
a stop valve M and hand wheel N as hereinbefore described. The said pipe L is
moreover provided with a cock L by means of which the overflow chamber I can be
filled with water and another cock L by means of which water can be drawn off for
drinking and other purposes. The pipe U instead of communicating with a coil in
the preserving chamber as hereinbefore described, leads to a tank X which is also
provided with a pipe U' communicating with the overflow chamber 1. The said
overflow chamber I is moreover provided with a pipe O' and stop cock P¹ by means
of which the said chamber can be emptied. The freezing chamber H and overflow
chamber I are fitted with stirrers Y attached to the rods T. These rods Tare provided
with handles T; by means of which the said stirrers can be worked.
Moreover it is obvious that I can otherwise somewhat modify the construction of
my apparatus without departing from the nature of my invention.
Having now particularly described and ascertained the nature of the said
Invention and in what manner the same is to be performed I declare that what I
claim is :-
First. A refrigerator for domestic and other purposes wherein the fresh water
employed in the freezing chamber to dissolve the salts and form the cold solution, is
passed through a tank or coil of pipe in the overflow chamber, and wherein provision
is made for utilizing the excess or overflow of the said cold solution from the freezing
chamber for cooling the air in the preserving chamber, substantially as and for the
purpose set forth.
Second. The combination with the chambers H, I, of the pipe L, and the stop
valve M having a hand-wheel N so arranged that the said hand-wheel is outside
the case of the apparatus and the supply of fresh water to the freezing chamber can
be regulated without raising the covers or lids, substantially as described.
Third. The employment of the cock L' by means of which the overflow chamber
can be filled with water as above specified.
Fourth. The improved refrigerator for domestic or other purposes consisting of the
parts constructed and combined substantially as described with reference to either of
the forms or modifications shown in the accompanying Drawing.
00.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.