Improvements in Ice Cream Freezers.
Year: 1891

page_text: Date of Application, 15th May, 1891
Complete Specification Left, 14th Jan., 1892-Accepted. 12th Mar., 1892
PROVISIONAL SPECIFICATION.
Improvements in Ice Cream Freezers.
I, FREDERIC BOARDMAN COCHRAN, of 505, Pearl Street, in the City, County,
and State of New York, United States of America, Manufacturer, do hereby
declare the nature of this invention to be as follows:-
My invention relates to improvements in ice cream freezers, and the object of my
invention is to produce a low cost machine of simple construction in which the
various kinds of ices may be frozen quickly and kept frozen a long time and also to
provide means for adjusting the freezing cylinder and pan according to the amount
of material which is to be used.
To this end, my invention consists in certain features of construction and
combination of parts which will be hereinafter described.
The main case of the apparatus is preferably rectangular and is provided with a
hinged cover which practically constitutes one-half of the case, and which is secured
in front by suitable fastenings. The case contains a cylinder which is mounted to
revolve therein and contains the freezing materials. The ends of the cylinder are
smaller than the body of the cylinder, and one end is closed by a removable stopper,
so that the freezing compound may be easily inserted or removed, and the other is
provided with a crank by means of which the cylinder is revolved. Beneath the
cylinder there is a pan for containing the material to be frozen.
It is necessary to adjust the pan in relation to the cylinder as well as to adjust
the cylinder in relation to the pan, and to adjust the pan it is provided on opposite
ends with lugs which extend into vertical slideways and the lugs thus prevent the
pan from tipping. The pan is supported upon a rod or bar which extends
longitudinally beneath it and which also extends through slots in opposite ends of
the case, said rod or bar terminating in handles to enable it to be conveniently
raised or lowered. To adjust the rod and the pan which is supported thereon slotted
plates are employed. These plates are fastened to the case so that they will cover
the slots therein and in order that the plates may be conveniently attached, they
are provided with projecting perforated cars adapted to receive screws.
Each plate
has a slot extending through it vertically and on each side of the main slot are
branch slots or notches which are arranged at different heights, and the rod may be
raised and its ends supported in any of these notches, so as to hold it at the desired
height.
Other forms of plates may, however, be substituted for the one described. For
example there may be used a plate having a main central slot to receive the rod
and a series of steps on one side, the wall of the main slot being slightly rounded
opposite the outer edges of the steps. Or the plate may have a series of concave
notches, which also serve to support the rod.
In front of the cylinder there is a receptacle which extends longitudinally through
the case and which is adapted to receive the ice as it comes from the cylinder. The
front upper edge of this receptacle is provided with a scraper which is adapted to
press against the surface of the cylinder and scrape the frozen material therefrom
so that it will drop into the receptacle. The receptacle is adapted to slide back and
forth in the case, and to facilitate its adjustment it is provided with a handle which
extends outwards through a slot in the front of the case, the handle having a pair
of depending lugs which clasp the front side of the receptacle and having its rear
end bent at a right angle so that it will press against the back wall of the receptacle.
Thus it will be seen that by moving the handle in and out, the receptacle will he
correspondingly moved.

page_text: Instead of adjusting the pan, to bring it into a desired position in relation to the
cylinder, the cylinder may be adjusted in relation to the pan, by means of levers
centrally pivoted one on each end of the case, whose rear ends terminate in bearings
which support the reduced ends of the cylinder. In order that the cylinder may be
raised and lowered, the case and cover are slotted and the reduced ends may move
up and down in the slots. The outer ends of the levers extend to a point a little in
advance of the front side of the case and the extreme ends are bent outward to form '
convenient handles and the levers are held in position by means of lugs which have
a series of projecting and vertically-aligning pins thereon, and the levers are
sufficiently springy so that they may be bent out at one of the pins and will then
spring in between two pins.
Instead of centrally pivoted levers, as described, levers may be employed which
are pivoted at their rear ends to the rear portion of the case.
According to another modification the levers, which are arranged to support the
cylinder in either of the ways above described, may be connected at their ends by a
rod which extends across the front portion of the case and which has a keeper in
which is mounted a spring-pressed pin engaging one of a series of holes in the front
of the case so that by adjusting the pin in a desired hole, the position of the levers
and of the cylinder supported thereby will be also adjusted.
The cylinder is filled with a freezing compound, the material to be frozen is
placed in the pan, and the pan and cylinder are adjusted so that the cylinder will
extend downward into the pan. The cylinder is then rotated by means of the
crank, and the material in the pan will be quickly frozen and will adhere to the
cylinder. The receptacle is pressed forward so that the scraper will press against
the wall of the cylinder and the material which is frozen thereon will be scraped off
and deposited in the receptacle, or if desired the receptacle may be held in the
front of the case and the material in the pan may be allowed to freeze in a solid
body upon the walls of the cylinder.
ས་
F. B. COCHRAN,
By A. M. & Wm. Clark,
53, Chancery Lane, London, Patent Agents.
COMPLETE SPECIFICATION.
Improvements in Ice Cream Freezers.
I FREDERIC BOARDMAN COCHRAN, of 505 Pearl Street, in the City, County 3
and State of New York, United States of America, Manufacturer 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 improvements in ice cream freezers, and the object of my 4
invention is to produce a low cost machine of simple construction, in which the various
kinds of ices may be frozen quickly and kept frozen a long time and also to provide
means for adjusting the freezing cylinder and pan according to the amount of
material which is to be used.
To this end my invention consists in certain features of construction and 4
combinations of parts, which will be hereinafter described and claimed.
Reference is to be had to the accompanying drawings forming part of this
Specification in which
Figure 1 is a plan view of the freezer with the cover removed.
Figure 2 is a cross-section of the same with the cover in place, on line 2-2 5
Figure 1.
Figure 3 is a detail view of the handle which is used for adjusting the receptacle
which catches the frozen cream.
Figure 4 is a longitudinal section on line 4-4 Figure 2. -

page_text: Figure is a detail side elevation of the preferred form of adjusting plate in
which the pan-supporting rod is held.
Figure 6 is a detail side elevation of a modified form of adjusting plate.
Figure 7 is a detail side clevation of another modification of the same.
Figure 8 is a plan view of the freezer with the cover removed and shewing means
for adjusting the freezing cylinder instead of the cream pan.
Figure 9 is an end view of the same with the cover in position.
Figure 10 is a broken end view, shewing a modified form of lever for raising the
cylinder.
Figure. 11 is a cross-section on line 11-11 Figure 8.
Figure 12 is a longitudinal section on line 12-12 Figure 11 and
Figure 13 is a broken plan view of another modified lever mechanism for adjusting”
the cylinder.
Similar figures of reference indicate corresponding parts in all the views.
The main case 10 is preferably rectangular in form and is provided with a
cover 11 which is of nearly the same size as the lower portion of the case, which
cover is hinged to the bottom part on the back-side, as shewn at 12, and is secured
in front by suitable latches 13. A cylinder 14 is arranged longitudinally in the
case and the cylinder is adapted to contain the freezing material. The said cylinder
has reduced ends 15 and 16 which are mounted to turn in the case, the end 15 being
closed by a removable stopper 17 so that the freezing compound may be easily
inserted in or removed from the cylinder, and the end 16 is provided with a crank 18
by means of which the cylinder is revolved. A pan 19 is arranged longitudinally
beneath the cylinder and this pan is adapted to contain the material to be frozen.
It is necessary to adjust the pan in relation to the cylinder as well as to adjust the
cylinder in relation to the pan, and to adjust the pan the following mechanism is
employed. The pan is provided on opposite ends with lugs 20 which extend into
vertical slideways 21 and the lugs thus prevent the pan from tipping. The pan is
supported upon a rod or bar 22 which extends longitudinally beneath it and which
also extends through slots in opposite ends of the case and the rod or bar terminates
in handles 23 to enable it to be conveniently raised or lowered. To adjust the rod 22
and the pan which is supported thereon, plates 24 are employed the plates being
astened to the case so that they will cover the slots therein and in order that the
plates may be conveniently attached they are provided with projecting perforated
ears adapted to receive screws. Each plate 24 has a slot 25 extending through it
vertically and on each side of the main slot are branch slots or notches 26 which
notches are arranged at different heights, and the rod 22 may be raised and its ends
Supported in any of these notches so as to hold it at a desired height.
Instead of the plate 24 the plate 27 may be used which plate has a mam central'
slot 28 to receive the rod and a series of steps 29 on one side which serve to support'
the rod at different heights and in order that the rod may be easily placed in the
steps, the wall of the main slot 28 is slightly rounded opposite the outer edges of
the steps. Another modified form of plate 30 is provided with a series of concave.
notches 31 which also serve to support the rod 22, and other forms of notched plates
may be used if desired.
In front of the cylinder 14 is a receptacle 32 which extends longitudinally
through the case and which is adapted to receive the ice as it comes from the
cylinder and on the front upper edge of this receptacle is a scraper 33 which is
adapted to press against the surface of the cylinder and scrape the frozen material.
therefrom, so that it will drop into the receptacle. The receptacle is adapted to
slide back and forth in the case and to facilitate its adjustment it is provided with a
handle 34 which extends outward through a slot in the front of the case the handle
having a pair of depending lugs 35 which are adapted to clasp the front side of the
receptacle and having its rear end bent outward at a right angle, as shown at 36,
so that it will press against the back wall of the receptacle and it will thus be seen
that by moving the handle in and out the receptacle will be correspondingly moved.
Instead of adjusting the pan 19 to bring it into a desired position in relation to the

page_text: cylinder, the cylinder may be adjusted in relation to the pan and the following
means are employed for accomplishing this result, this mechanism being shewn in
Figures 8 to 13 inclusive. A lever 38 is pivoted on each end of the case 10 the
lever being centrally pivoted, as shewn at 39, and the rear ends of the levers
terminate in bearings 40 which support the reduced ends of the cylinder 14 and in
order that the cylinder may be raised and lowered the case and cover are slotted, as
shewn at 37, and the reduced ends may move up and down in the slots. The outer
ends of the levers 38 extend to a point a little in advance of the front side of the
case and the extreme ends are bent outward, as shewn at 41, to form convenient
handles and the levers are held in position by means of lugs 42 which have a series
of projecting and vertically-aligning pins thereon and the levers are sufficiently
springy so that they may be bent out at one of the pins and will then spring in
between two pins. It will thus be seen that by adjusting the levers between two of
these pins; the levers may be held in a fixed position and the cylinder maintained at
the desired height.
Instead of having levers centrally pivoted like those described, levers 43 may be
employed which have bearings 44 to support the cylinder and which are pivoted at
their rear ends to the rear portion of the case, as shewn at 45 in Figure 10, and
these levers may be adjusted in the rack 42 in the manner already described. Still
another lever mechanism is shewn in Figure 13 for adjusting the cylinder aud in
this case side levers 46 are arranged to support the cylinder in either of the ways
above described and the ends of the levers are connected by a rod 47 which extends
across the front portion of the case and which has centrally thereon a keeper 48 in
which is mounted a spring-pressed pin 49 and the pin engages one of a series of
holes 50 in the front of the case and by adjusting the pin in a desired hole the
position of the levers and of the cylinder supported thereby will be also adjusted.
pan
The operation of the machine is as follows:-The cylinder is filled with a freezing
compound, the material to be frozen is placed in the pan 19, and the pan and
cylinder are adjusted so that the cylinder will extend downward into the pan. The
cylinder is then rotated by means of the crank 18 and the material in the 19
will be quickly frozen and will adhere to the cylinder. The receptacle 32 is pressed
forward so that the scraper will press against the wall of the cylinder and the
material which is frozen thercou will be scraped off and deposited in the
receptacle 32, or if desired the receptacle may be held in the front of the case and
the material in the pan may be allowed to freeze in a solid body upon the walls of
the cylinder.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is
1. In an ice cream freezer, the combination, with a case and a revolving cylinder,
of a cream pan mounted beneath the cylinder slotted plates secured in opposite ends
of the case and provided with a series of shelves of different heights and a supporting
rod extending beneath the pan and through the slotted plates, substantially as
described.
2. In an ice cream freezer, the combination, with a case and a vertically-
adjustable rod extending through the case, of a pan mounted on the rod and
provided with projecting lugs to enter the recesses of the case, substantially as
described.
3. In an ice cream freezer, the combination, with the revoluble cylinder and the
sliding receptacle arranged at one side of the cylinder, of a handle having depending
strips to engage one side of the receptacle and a bent end to press against the
opposite side thereof, substantially as described.
4. In an ice cream freezer, the combination with the case, the revoluble cylinder
mounted therein and the sliding receptacle at one side of the cylinder, of the handle
extending through a slot in the case and shaped to clasp one side and press against
the opposite side of the receptacle, substantially as described..

page_text: 5. In an ice cream freezer of the character described, the combination, with a
slotted case and a cylinder mounted within the case and having ends protruding
through the slots, of levers pivoted on the case and supporting the cylinder and
means for fixing the position of the levers, substantially as described.
6. In a freezer of the character described, the combination, with a slotted casc
and the cylinder therein, said cylinder having ends projecting through the slots and
having means for rotating it, of levers pivoted on the ends of the case and provided
with bearings to support the cylinder and means for fixing the position of the
cylinder, substantially as described.
7. The combination, with a slotted case and a cylinder having ends protruding
through the slots, one of the ends being provided with a crank, of levers pivoted on
the case and supporting the cylinder and a rack for fixing the position of the levers,.
substantially as described.
F. B. COCHRAN
By A. M. & Wm. Clark,
53, Chancery Lane, London, Chartered Patent Agents.
Can mo su na