Improvements in Ice Cream Freezers.
Year: 1893

page_text: Date of Application, 10th May, 1893
Complete Specification Left, 20th July, 1893-Accepted, 2nd Sept., 1893
PROVISIONAL SPECIFICATION.
Improvements in Ice Cream Freezers.
We, LEONARD ROBERTS and HEDLEY GEORGE ROBERTS, both of No. 270,
Camberwell Road, in the County of London, Manufacturers, do hereby declare the
nature of this invention to be as follows:-
This invention relates to a novel and simple construction of ice cream freezing
apparatus specially adapted for household use.
Our improved apparatus is constructed of two concentric cylinders of suitable
material such as galvanized iron or block tin with a space between the cylinders
adapted to receive the ice, the material to be frozen being placed in the smaller
cylinder. One end of the apparatus is permanently closed, the other end being
provided with a suitable air tight lid; the open end of the smaller cylinder having
a separate double cover.
Our apparatus is provided with a handle adapted to be fitted to the centre of the
ends of the apparatus and whereby the apparatus can be rotated by being rolled;
or the apparatus may be suspended on centres and revolved.
By our construction of apparatus a relatively small quantity of ice is consumed
and the freezing operation is very rapidly carried into effect.
Dated the 10th day of May 1893.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicants.
COMPLETE SPECIFICATION.
Improvements in Ice Cream Freezers.
We, LEONARD ROBERTS and HEDLEY GEORGE ROBERTS, both of No. 270,
Camberwell Road, in the County of London, Manufacturers, 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 :-
This invention relates to a novel and simple construction of ice cream freezing
apparatus specially adapted for household use.
Our improved apparatus comprises an outer cylinder and one or more inner
cylinders of suitable material such as galvanized iron or tinned plate, the space
between the outer and inner cylinders being adapted to receive the freezing
mixture whilst the liquid or substances to be frozen are placed in the inner
cylinder or cylinders. All the cylinders are provided with air-tight covers at one
end, and in some cases at both ends.
Our apparatus is provided with a handle adapted to be fitted to the centre of the
ends of the apparatus and whereby the apparatus can be rotated by being rolled;
or the apparatus may be suspended on centres and rotated.
To enable our invention to be fully understood we will describe how it can be
carried into practice by reference to the accompanying drawings, in which :-
:-
Figures 1 and 2 are respectively a plan and an end view of an ice-cream freezing
apparatus constructed according to our invention :
Figure 3 is a longitudinal section of the same with the handle for enabling it to
be rotated removed:
Figure 4 is a longitudinal section of the outer cylinder and its cover separated;
and,
Figure 5 is a similar view of the inner cylinder with its two covers separated;
1 Pain Q71

page_text: Figures 6 and 7 are two sectional views illustrating a modification of our
invention; and,
Figures 8 and 9 are a plan with the cover of the outer cylinder removed and a
sectional elevation respectively illustrating a modification of our invention.
Similar reference letters indicate similar parts throughout the drawings.
a indicates the outer cylinder, and 6 the inner cylinder of the apparatus, and c indi-
cates the space between the cylinders serving to receive the freezing mixture.
d is the cover of the cylinder a, which cover fits within the opening e in one
end of the said cylinder so as to form an air-tight joint and is provided with a flange
beneath which a lever can be placed for lifting the cover. f,g are two covers with
which the cylinder 6 is provided, the cover f being of similar construction to the
cover d of the cylinder a and fitted in a similar manner whilst the cover g is formed
as a cap adapted to fit over the end of the said cylinder b. The
cover g is advan-
tageously provided with a hinged wire loop handle h to enable the said cover to be
removed from the cylinder b.
i, i are flanges at the two ends of the cylinder a inside the same, the said flanges i, i
serving to receive or fit over the inner cylinder b so as to retain the same in position
during the rotation of the apparatus.
jj are trunnions upon which the apparatus is rotated.
As shewn in Figure 1 a spring-handle k is represented as being attached to the
said trunnions j,j, the said spring-handle serving to suspend the apparatus so that
it may be rotated or for pulling it along the ground or other surface.
The cylinders a and b shewn in Figures 1 to 5 are represented as being adapted
to open at one end only. In some cases, however, we find it advantageous to
construct the cylinders a and b with covers at each end and to form the cylinder b
with a partition 1, as shewn in Figures 6 and 7. By this means two kinds of ice
can be formed in the same cylinder.
In some cases also instead of providing only two cylinders a, b which are
concentric with one another we may arrange several small cylinders 6 within the
cylinder a, for instance, three cylinders as shewn in Figures 8 and 9, which
cylinders may contain different kinds of ice.
When the inner cylinder b is removed from the outer cylinder the freezing
mixture would be liable to fall within the flange i at the bottom, I therefore in some
cases provide a perforated shield m outside the flange i as shewn in Figure 3, which
flange retains the freezing mixture in its proper position.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
1. An ice-cream freezing apparatus comprising an outer cylinder and one or
more inner cylinders, the said cylinders being hermetically closed and adapted to
be rotated, substantially as described.
2. An ice-cream freezing apparatus comprising an outer cylinder and one or
more inner cylinders, the outer cylinder having trunnion pins upon which the
apparatus can be rotated, substantially as described.
3. The improved ice-cream freezing apparatus hereinbefore described and illus-
trated in the accompanying drawings.
Dated the 20th day of July 1802
G. F. REDFERN & .Co.,
4, South Street, Finsbury, London, Agents for the Applicants.