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Патент USA US2113493

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Apri? 5, 1938.
Filed June 21, 1932
111, 1,,1.1,1,
?é. W
Patented Apr. 5, 1938
Charles Phillips, Salinas, Calif.
Application June 21, 1932, Serial No. 618,438
9 Claims. (Cl. 62-1)
This invention relates to an improved method
and apparatus for refrigerating freight cars._
It has heretofore been the custom in packing
certain perishable commodities such as fresh .
5 vegetables or ?sh in freight cars prior to ship
ment, to manually distribute quantities of crushed
ice over the commodities after they had been
properly placed in the cars. This method of re
frigeration has proven to be comparatively un
ll) satisfactory and expensive, principally because
the crushed ice when manually placed over the
crates containing the commodities is not ordi
narily distributed so as to entirely cover and seal
the openings normally present between the crates.
' Unless the perishable commodities. are properly
covered with the crushed ice and thereby sealed
from the air circulating or present in the freight
car, there is apt to be a resulting spoilage of the
' commodities.
My invention contemplates
20 use of novel apparatus which is capable of
mechanically distributing quantities of crushed
ice under pressure over the perishable commodi
ties packed in crates within freight cars. By
mechanically distributing the crushed ice under
pressure over the crated commodities, the open
ings normally present between the crates are
sealed, thereby preventing the surrounding warm
air from contacting with the conmiodities.
Through the mechanical distribution of the
30 crushed ice, in accordance with my invention,
rather than by the variable and unsatisfactory
manual methods now commonly used, an even
preferred by me, it being understood that various '
modifications may be made without departing
from the spirit thereof.
Fig. 1 is agdiagrammatic view of a refrlgeratin
unit, illustrating the relative positions of the c".
freight cars to be refrigerated, the movable ice
blower or distributor, and the ice supplying means
with which the distributor contacts;
Fig. 2 is an end view of the apparatus illustrated
in Fig. 1, showing the ice supplying structure in
vertical cross-section; and
Fig. 3 is an end view of another type of struc
ture for mounting the movable ice distributor or
blower, showing parts of the apparatus in verti
cal cross-section.
Referring to the drawing, the numeral I desig
nates a building structure which ordinarily con
stitutes a supply base for the ice utilized in re
frigerating the freight cars 2 containing the
perishable commodities to be shipped from one 20
point to another. The building structure I is
ordinarily provided with a. forwardly extending
platform 3 which is positioned adjacent a rail
road track over which the freight cars are op
erated. Suitably supported in an elevated posi
tion at the front side of the building structure, is
an ice conveyor
proximately the
structure. One
municates with
or trough 4 which extends ap
full length of the said building .
end of the ice conveyor com
a crusher 5’ which serves to 3o
break large pieces of ice into sizes capable of
being readily handled by the apparatus employed
layer of ?rmly packed ice may be readily placed
over the commodities packed in anumber of
35 ‘freight cars. It is of considerable importance
when packing certain kinds of fresh vegetables
in freight cars prior to shipment, that the crushed
ice be applied without undue delay, otherwise
the surrounding warm air is apt to affect the
use. The crushed ice emerging from the crusher
5’ is ordinarily actuated by the force of gravity
40 condition of the vegetables before the cars are
or other suitable means through the conveyor 4 40
properly refrigerated. When a number of freight
cars containing perishable vegetables are to be
refrigerated at the same time, it is highly im
portant that no time be lost in placing the crushed
45 ice within the cars.
By means of the novel ap
paratus comprising my invention, it is possible tov
mechanically refrigerate a number of freight cars
within a much shorter period of time than is now
" possible with the methods now commonly em
The principal object of my invention, therefore,
in distributing the same over the perishable com
modities packed within the freight cars. The
conveyor 4 is provided at certain points on its 3.3
underneath side, with openings 5 which may be
closed by suitable covers or doors when not‘ in
to one of the openings 5, from whence it falls into
a chute 6. The chute 6 is ordinarily mounted
with its open top end located directly beneath
the particular opening 5 through which the
crushed ice in the conveyor 4 is to proceed. The
chute may be moved by hand from one of the
openings 5 to‘ another and any suitable means
may be employed to support and hold the same in
a proper operating position. Movably mounted
on the platform 3-, (Figs. 1 and 2)v is a blower 'l 50
is to provide a. novel and improved method and
which embodies any type of construction now
well known in the art. ‘The blower is preferably
apparatus for refrigerating freight cars.
In the accompanying drawing I have shown
my improved apparatus in a form which is .now
mounted on wheels so as to permit the same to be
conveniently moved from a point opposite the
door of one freight car to a. point Opposite the
_ 2,: races
door of another freight car. The blower em
for mechanically discharging quantities of
bodies a hopper 8 for receiving quantities of. crushed ice under pressure, means for delivering
crushed ice delivered by the chute 0, and also ~crushed ice from one of the discharge openings
suitable electrically operated mechanism for
blowing or otherwise discharging the crushed ice
under pressure through a‘ ?exible tube 8. The
tube 9 is suitably connected at one end. to the
blower 1 and is of sumcient size to convey the
crushed ice discharged from the blower to the
10 particular freight car to be refrigerated.
As shown in Fig. 3 the blower ‘I may be
mounted in an elevated position on suitable tracks
III which are supported at the front side of the
building structure I. When the blower is thus
mounted in an elevated position above the plat
form 3, the freight cars may be made accessible
for loading purposes without any particular in
terference on account of the refrigerating mecha
In ordinary practice the freight cars 2 are
in the conveyor to the blower means, and means
connected to the outlet of said blower means
for controlling the discharge of the ice expelled
from the latter.
3. Apparatus of the kind described comprising
a mechanically operated blower movably mounted
on wheels, conveying means for feeding crushed 10
ice to the blower, the said conveying means hav
ing a plurality of spaced openings through which
the crushed ice may be fed to the blower, and a
?exible tube connected to the outlet of said
blower through which crushed ice may be dis
charged under pressure.
4. Apparatus of the kind described comprising
in combination, a blower for directing quantities
of crushed ice under pressure into an enclosure »
packed with crates of vegetables or other com
to be refrigerated, and means for automatically 20
feeding crushed ice to the blower, which said
modities to the points indicated by the dotted
means includes an elevated crushed ice conveyor
horizontal lines. After the cars are positioned
on the railroad tracks with their doors located
having a plurality of spaced discharge openings
along its length, and tubular means detachably
connecting one of the discharge openings in the 25
'25 approximately opposite the openings 5 in the
crushed ice conveyor 4, the blower ‘I is moved to
a convenient point where'contact can be made
between the chute 6 and the hopper. 8. >The'
operating position of the blower is ordinarily one
30 which is adjacent the door of the particular
freight car to be refrigerated. After the chute
6 and the blower 'l are in their proper operating
positions, the particular opening 5 with which
conveyor with the blower.
5. The method of icing products in a container
and of cooling unoccupied space in said container
which comprises conveying ice particles in a con-1.
fined, ?owing air stream into the space to be 30
iced, and releasing said stream’ to deposit said
ice ‘particles in said space and to permit said
released stream to circulate to cool unoccupied
the chute is in communication, is opened so‘ as
to permit the discharge of the crushed ice into
space in said container.
the said chute. As the blower receives and dis
charges the crushed ice, the ?exible tube 9 is
which comprises creating a flowing stream of ice
handled by an operator so the crushed ice is
properly distributed over the crates of commodi
.40 ties located in the freight car. The force with
which the crushed ice strikes the packed com
modities after it leaves the discharge end of the
tube 9, causes the openings located between and
in the crates to be completely ?lled with crushed
ice. The manipulation of the tube 9 while ‘the
blower is in operation, permits the 'operator to
apply an even and uniform layer of crushed ice
over the tops of the packed crates. The‘ pieces
of crushed ice being fairly smalLin size, cause
50 the layer to be firm and compact thereby sealing
the commodities from the air located in the top
of the freight car.
By moving the apparatus from one point to
6. The method of icing products in a container 35
particles and air, con?ning said stream within a
?exible conduit and conveying said stream into
said container through said conduit, and con
trolling the discharge end of said conduit in such 40
a manner as to deposit the ice particles upon the
products to be iced.
7. A method of preserving commodities for
transit in a vehicle comprising the steps of pack
ing the commodities in said vehicle in such a 45
manner as to leave a space between the top sur
face of said commodities and the inside surface
of the roof of said vehicle, conveying a ?owing
stream of crushed ice and air into said vehicle
through a ?exible conduit, and discharging said
stream from said conduit under pressure in such so
a manner as to cover said commodities with a
coating of ice.
cessively refrigerated in a comparatively short
8. A method of preserving commodities for
transit in a vehicle comprising the steps of plac
length of time..
ing the commodities in containers, packing the
another, a number of freight cars may be suc
It‘ is apparent to those skilled in the aitthat _ containers in said vehicle in‘ such a manner as
. the apparatus shown‘and'described herein may
to leave spaces between and around said con
be embodied in other forms and constructions,
so for this and other apparent reasons, I desirev
my invention included broadly within the ap
pended claims rather than con?ned to the exact
disclosures herein made.
Having described my invention what I claim is:
1. Apparatus of the kind described comprising
an ice crusher, a conveyor into which the crushed
ice from the crusher is fed, a mechanically oper
ated blower, means interposed between the blow
er and the conveyor for directing the crushed ice
from the conveyor to the blower, and a ?exible
tube connected to the blower for controlling the
discharge of crushed ice from the blower.
‘2. Apparatus of the kind described comprising
tainers, and then discharging a ?owing stream
of crushed ice into said vehicle and against said 00
containers under such pressure as to cover said
containers with a ?rm, compact coating of ice.
9. Apparatus for icing commodities when
packed for transit in a vehicle comprising a ?ex
ible conduit through which crushed ice may be 65
delivered to any desired point of said vehicle,'an
ice blower having an outlet to which said con-~
duit is connected and being capable of discharg
ing therefrom a stream of‘ air and crushed ice
of su?lcient kinetic energy to pass through said 70
conduit and issue therefrom as _ a stream of
substantial velocity, and means. for supplying
crushed ice to said blower.
a crushed ice conveyor having a plurality of.
spaced discharge openings therein, blower means
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