An Improved Machine for Making Ice, Ice Cream, and the like.
Year: 1891

page_text: Date of Application, 4th Feb., 1891
Complete Specification Left, 4th Nov., 1891-Accepted, 5th Dec., 1891
PROVISIONAL SPECIFICATION.
An Improved Machine for Making Ice, Ice Cream, and the like.
I, WILLIAM HENRY MUNNS, of Victoria Chambers, 55 and 56 Chancery Lane,
in the County of London, Patent Agent, do hereby declare the nature of this
invention (a communication to me from abroad by Lafayette Railsback, of
Indianapolis, Indiana, U.S.A., Inventor,) to be as follows:
This invention has reference to an improved machine for making ice, ice cream,
and the like, and the invention has for its object to provide a machine of this class
which is simple in construction, portable, and neat in appearance.
The machine comprises an outer rectangular case, preferably constructed of wood,
in which is centrally journalled a cylinder with closed ends. This cylinder is
provided with curved partitions which extend from near the centre to near the
periphery, the convexed sides being towards the advancing side of the cylinder
when in operation, so that the refrigerant which is placed therein is forced towards
the outside peripheral casing, while at the same time it is permitted to drop or
slide through from one division to another. The cylinder is adapted to be rotated
by means of gear-wheels arranged on the outside of the casing, and adapted to he
revolved by a winch handle. In the lower portion of the outside casing is located
a pan or receptacle for receiving the material to be frozen. In two opposite sides
of the casing are two apertures, the one of which is provided with a hopper through
which the material is poured into the receptacle, and the other aperture admits the
upper edge of a scraper which extends along the cylinder and scrapes off the frozen
material which adheres thereto. This scraper is kept in close contact with the
periphery of the rotating cylinder by means of a spiral spring, which is coiled
around the pivot-pin upon which the scraper is secured at its lower edge.
Dated this 4th dox of Fehru 1801
W. H. MUNNS.
COMPLETE SPECIFICATION.
An Improved Machine for Making Ice, Ice Cream, and the like.
I, WILLIAM HENRY MUNNS, of 106, 107, and 108, Victoria Chambers, Chancery
Lane, in the County of London, Patent Agent, do hereby declare the nature of
this invention (a communication to me from abroad by Lafayette Railsback, of
Indianapolis, Indiana, U.S.A. Inventor,) and in what manner the same is to be
performed to be particularly described and ascertained in and by the following
statement:-
My present invention consists in certain improvements upon that class of machines
for making ice, ice cream, etc., which embody a revolving cylinder, upon the
periphery of which the ice gathers as it revolves, whereby the power of the
refrigerant is more perfectly utilized than has heretofore been the case, and whereby
the devices for breaking up and removing the film of ice as it is frozen are made as
will be hereinafter more particularly described and claimed.
Referring to the accompanying drawings which are made a part hereof, and on
which similar letters of reference indicate similar parts,
Fig. 1 is a side elevation of a machine embodying my said invention,
Fig. 2 is an end view thereof, showing the delivery end of the machine.
Fig. 3 is a side elevation, showing the opposite side to that shewn in Fig. 1.
Fig. 4 is an end view, showing the opposite end to that shewn in Fig. 2.

page_text: Fig. 5 is a sectional elevation taken on line a, a, of Fig. 6, and
Fig. 6 is a sectional elevation taken on line y, y of Fig. 5.
In said drawings the portions inarked A. represent the outer casing or framework
of the machine; B, the spout or funnel through which the liquid to be frozen is
introduced; C the revolving cylinder D, the scraper for removing the ice from the
cylinder and E, a disintegrating device by which the film of the ice may be broken
up when desired.
The casing or framework A is of any suitable construction for the purpose. It
embodies or carries bearings for the revolving cylinder and supports for the scraper
and disintegrating device, and also supports the spout and receptacle for the liquid
to be frozen. Said spout B is shown as mounted upon the casing A,, and as
discharging inside said casing below the centre of the revolving cylinder. A pan a
is.shown as set in the bottom of said casing which may catch the liquid when it is
not discharged directly upon the, surface of the cylinder...Said spout and said
receptacle may be of any desired construction, so far as my present invention is
concerned, and are suitably arranged to direct said liquid upon the cylinder or to
compel said cylinder to take up the liquid therefrom as it revolves.
2 #14
The cylinder C is a plain hollow cylinder having a smooth periphery upon which
the liquid is to be frozen. It contains, in operation, any desired refrigerant,
commonly pounded ice and salt. Its ends therefor are preferably constructed
double, or of two thicknesses, and between said double ends is located either some
suitable non-conducting substance-such as discs of paper or paste-board-or a
dead-air space, which prevents the cold from operating through, the ends as has been
the case in machines where the cylinders were constructed in the ordinary manner,
and which has been a very great detriment to the operation of such machines, for
the reason that the ice when formed on said ends to a considerable thickness and
when broken off would be in pieces of considerable size instead of in the fine
pulverized condition that is most desirable. This has not only been disadvantageous
in this respect, but the power of the refrigerant has been largely wasted in this not
only necessary but objectionable freezing of the material. By this construction
these objections are not only overcome and the power of the refrigerant is directed
to the periphery of the cylinder where it is operated as desired.
1.4.
Inside the cylinder Care curved partitions C' extending from the periphery to
near the opening c² through which the refrigerant is introduced. The convex
surfaces of these partitions are toward the advancing side of the cylinder when in
operation, and thus the refrigerant is forced out by said wings to the outside of the
said cylinder and thus kept in contact therewith, which adds much to the efficiency
of the device. A portion of the refrigerant falls through the space between the
ends of these wings and the interior surface of the peripheral casing of the cylinder
as said cylinder revolves, so as to cause it to come into contact with the whole
peripheral surface. The scraper D is in form of a chute 'and is mounted on the
inwardly-turned ends of the spring-arms d which thus form pivots for said scraper.
Said spring arms are secured to the casing or framework A preferably in an upright
position, as shown, and are so adjusted as to hold the upper edge of this scraper in
contact with the periphery of the cylinder with the required force to enable it to
scrape the ice or ice-cream from said cylinder effectually.
"
The disintegrating device E may be a revolving corrugated breaker or a knife
having fine teeth or serrations on its edge. As shown this. device is mounted on
spring-arins secured to the casing or framework A, and by which said disintegrating
device may be held in contact with the periphery of the cylinder. The device, as
shown, consists of a bar or knife with teeth or serrations on its edge, and its ends
rest in recesses in the casing or 'framework A, while the arms which carry it
are simple spring-wires secured to the inside of said framework or casing, as shown.
When it is desired to hold this device away from the cylinder it is pulled back
and small pins a are inserted in front of it in holes in the sides of the casing. The
springs E may be adjusted by properly bending them to give this device just that
force against the periphery of the cylinder which may be desired.

page_text: It is a peculiarity of liquid prepared to make ice-cream or any of the sweetened
ices that it freezes in a flaky condition, because of the saccharine matter therein,
and may easily be scraped off from the periphery of the cylinder without any
necessity for the use of a disintegrating device, while the liquid from which plain
ices are frozen will freeze fast to the periphery of the cylinder and cannot be
removed by the scraper without the use of such a disintegrating device as I have
shown.
In use, therefore, in making ice-cream, and such like products, the disintegrating
device is held back away from the cylinder, while in making plain ices it is allowed
to rest against the cylinder. My machine is thus adapted for all those uses by
simply manipulating the disintegrating device, as will be understood.
Having now particularly described and ascertained 'the nature of this my said
invention, and in what manner the same is to be performed, I declare that what I
claim is:
1. The combination, in a machine for making ice, ice-cream, etc., of the cylinder
containing the refrigerant, a receptacle for the liquid to be frozen, and a scraper or
chute for removing the product, such cylinder having internal partitions, which
partitions extend in curved lines from the periphery to near the centre, the convex
sides being toward the advancing side of the cylinder in operation, whereby the
refrigerant is forced toward the outside of the cylinder and held against its
peripheral casing, while at the same time it is permitted to drop or slide through
from one division to another, substantially as shown and described.
2. The combination, in a machine for making ice, ice-cream, etc., with the cylinder
thereof, of an adjustable spring-mounted disintegrating device, substantially as set
forth.
3. The combination of the frame, the revolving cylinder containing a refrigerant,
a receptacle for the liquid to be frozen, a scraper for removing it therefrom, and an
adjustably-mounted spring-operated device, substantially as set forth.
4. In a machine for making ice, ice-cream, etc., the combination, of a revolving
cylinder containing a refrigerant, a receptacle for the liquid to be frozen, a scraper
for removing the ice from said cylinder when frozen, and spring-arms having
inwardly-turned ends forming pivots upon which said scraper is mounted, substan-
tially as shown and described.
5. The combination, in a machine for making ice, ice-cream, etc., of the cylinder,
a receptacle for the liquid to be frozen, a spring-mounted scraper for removing it
therefrom, and a spring-mounted disintegrating device, substantially as set forth.
6. The combination, in a machine for making ice, ice-cream, etc., of the cylinder,
a receptacle for the liquid to be frozen, a scraper for removing it therefrom, and a
disintegrating device resting in slides in the framework arranged directly above the
scraper, and mounted on spring-arms, substantially as shown and described.
7. The combination, in a machine for making ice, ice-cream, etc., of a revolving
cylinder, a receptacle for the liquid to be frozen, a scraper for removing the ice
therefrom when frozen, and a disintegrating device arranged in advance of the
scraper and mounted on spring-arms, and small pins a' whereby when desired said
scraper can be held out of contact with said cylinder, substantially as shown and
described.
لبلين
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