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Патент USA US2136632

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Nov. 15, 1938. v
Filed Oct. 2l. 1955
4 Shee’ßS-Sheeî'I 1
NOV. 15, 1938.
Filed’oot; 21, `1935
4_sheets-shee1; 2
N'ov. 15, 1938.
c. L. MooRMAN
Filed Oct. 2l, 1955
4 Sheets-Sheet 5
Nov. 15, 1938.
Filed oop 21, 1935
4 Sheets-Sheet 4
Patented Nov. 15, 1938
Charles L. Moerman, Chicago, Ill.
Application October 21, 1935, Serial No. 45,847
5 Claims. (Cl. (i2-»19)
This invention relates to improvements in ice
compartments for refrigerator cars, and> more
particularly to a simplified and efficient ice com
partment construction, with especial reference to
5’ an improved bulkhead assembly, although the in
vention may have other uses and purposes as will
be apparent to one skilled in the art.
In the manufacture of refrigerator cars, it is
not only desirable to have an economical, simply
l0 -constructed and readily installed refrigerator
compartment, but it is also desirable to have aA
bulkhead assembly arranged to provide a maxi
mum amount of cooling surface for contact by
the air currents circulating adjacent the particu
16 lar bulkhead assembly. Difñculty has heretofore
`been experienced in acquiring a desirable amount
of cooling surface for contact by the circulating
air and in acquiring an assembly of desirable
simplicity. In most instances, it has been cus
20‘ tomary to provide an apertured steel plate behind
the bulkhead itself, this plate forming the front
Wall of the ice compartment, and reliance was
had upon the apertures in the plate fo-r ade
quately chilling the air passing thereby, which
25` construction is not noW deemed desirably efficient.
Accordingly, it is an object of the» present in
vention to provide» a bulkhead assembly for a, re
frigerator car wherein a portion of th-e assembly
forms the front wall of the ice compartment and
30 multiplies several times over the cooling surface
contacted by circulating air.
Another object of this invention is the provision
of an ice compartment having a front wall of tor
ltuous configuration to- provide a greater amount
of refrigerating surface.
Still another object of this invention is to pro
vide a bulkhead assembly including a front for
an ice compartment, the front being provided
with hollow outwardly extending vanes to in
40 crease the refrigerating surface, the vanes being
so formed that the refrigerant may enter there
a simple, economical and highly efficient ice com
partment in a refrigerating car, the compartment
being arranged for economical assembly in the
car and also arranged to prevent leakage of re
frigerant in the body of the car outside of the 5
Still another feature of the present invention
is the provision of a novel and easily installed
grate construction.
While some of the more salient features, char- 1n
acteristics and advantages of the present inven
tion have been above pointed out, others will be
come apparent ’from the following disclosures
when taken in connection with the accompany
ing drawings, in which:
Figure l is a fragmentary, longitudinal verti
cal sectional view through the end of a refrig
erating car, illustrating an ice compartment em
bodying principles of the present invention.
Figure 2 is a fragmentary plan sectional view 20’
of the structure shown in Figure l, taken sub
stantially as indicated by the line II-II of Fig
ure 1.
Figure 3 is a fragmentary, transverse vertical
sectionalview, taken substantially as indicated 25
by the 'line III-_III of Figure l, looking in the
direction of the arrows.
Figure 4 is an enlarged fragmentary plan sec
tional view, taken substantially as indicated by
the line IV-IV of Figure 3.
Figure 5 is an enlarged isometric. sectional
view, taken substantially as indicated by the line
V--V of Figure 1.
Figure 6 is also an enlarged isometric sectional
View, taken substantially as indicated by the line 35
VI-VI of Figure l.
Figure '7 is a plan sectional view through a sec
tion of the front wall of an ice compartment,
showing a slightly modified form of construction.
Figure 8 is an enlarged 4fragmentary vertical 40
sectional view through the refrigerating com
partment, taken lengthwise of the refrigerating
car, and showing a modified form of construction
A further object of this invention` is the pro
especially with reference to the grate structure.
vision of a bulkhead assembly for use in refrig
Figure 9 is a fragmentary plan sectional view 45
‘15` erator cars and similar places which is con
substantially as indicated by the line IX
structed to provide a path for circulating air and ,
which provides a greatly increased refrigerating IX of Figure 8.
Figure l0 is a fragmentary transverse vertical
surface in the path of the air.
sectional View, taken substantially as indicated by
Also a feature of this invention is the provi
50 sion of a front for an ice compartment which is the line X-X of Figure 9.
As shown on the drawings:
of solid construction, thereby preventing for
The illustrated embodiment of the present in
ward leakage of refrigerant and which is con
is shown in connection with a freight or
structed to furnish increased refrigerating sur
refrigerator car of any standard construction, of
face for circulating air.
It is also an object of this invention to provide
which only the body portion of the car is illus- 55
The car structure includes a supporting
frame I 0 and abody structure including side
Walls II, an insulated floor structure generally
indicated by numeral I2, and a roof I3 spaced
above an insulated ice compartment ceiling I 4,
leaving an air space therebetween as a means of
insulation. The roof I3 is also provided with a
hatch I5 through which the refrigerating com
of the car a bulkhead 38 made of wood or any
ble manner.
The side and end walls I I are each
gap therebetween to add to the insulating powers
of the wall. In the body of the car, as best seen
in Figures 1 and 2, a false floor I8 is preferably
provided which is open at the ends in order to
permit a circulation of air therebeneath.
Preferably adjacent each end of the car an ice
20 compartment is provided defined on the sides of
the car by the false walls I1, at the end of the
car by a second false wall I9, preferably metallic
and spaced from the aforesaid false wall l1 to
leave a dead air space between these walls, and
25. on the front by a bulkhead assembly generally
indicated in Figure 1 by numeral 20. The re
frigerant compartment ZI thus deñned is ñlled
through the hatch I 5 with a goodly portion of re
frigerant, usually ice, and adequate drainage
30 means must be provided.
To this end, both the floor I2 and false floor
I8 terminate immediately adjacent the the bulk
head assembly 20. Immediately beneath the
bulkhead assembly is a supporting joist or
VStringer 22 shouldered to accommodate a wooden
ii‘oor section 23 covered by a metallic member 24
which forms the floor for the compartment 2I.
Another cross timber 25 also aids in supporting
this floor, and this timber together with the floor
40 nis hollowed out to receive a drain catch 26 pref
erably secured to or integral with the metallic
flooring 24. Through this catch a drain pipe 21
extends and the upper end of this pipe is pro
tected by a scum hood or the like 28.
At regular spaced intervals transversely across
the car, stirrups 29 are mounted in position upon
the joist 22, and exactly opposite these stirrups
other angularly formed stirrups 3D are Ymounted
upon an end joist 3I. Each of these stirrups 29
50 ,and 30 have inwardly extending flanges, as best
seen in Figure 5, upon which are laid inverted
T-iron supports 32. Upon the side iianges of the
supports 32 a plurality of corrugated grates 33
are laid in position. Each grate section 33 is
preferably supported between the flanges of adja
cent T-irons, the upright legs of the T-irons
extending between the ends of adjacent grate
Of course, suitable supports are pro
vided for the outer grate sections adjacent the
60 side Walls of the car. These grate sections are
provided with upwardly extending flanges 34 at
each end thereof to form a box-like structure in
connection with the T-iron supports. 'I'he grate
sections as seen in Figure 2 are provided with a
plurality of metallic sections 31 forming the front
for the ice compartment 2l. To the exterior
faces of the upright iianges nearest the center
partment may be filled with refrigerant, such as
insulation I6 and with a -false wall I1 spaced in
wardly from the insulation I 6 to leave an air
rests upon an aforesaid stirrup 29. These up
rights are in the form of I-beams, and inside the
uprights and secured to the webs thereof are a
blocks of i'ce.
provided 'with a plurality of layers of suitable
plurality of spaced uprights 36 each of which
plurality of apertures 35 through which melted
refrigerant may drain. If not desired, the T
iron supports 32 and grate sections 33 need not
be secured in position but may merely be laid
in position, the abutment of the grate sections
70 against the leg fianges of the T-irons preventing
shifting of the respective members so that they
will remain in position even though ice is dumped
thereupon through the hatch I5.
With reference to Figures 1, 2, and 3, it will be
75 `seen that the bulkhead assembly 20 includes a
other suitable material is attached in any suita
With reference to Figures 4, 5 and 6, it will be
.seen that each of the uprights 36 is preferably
made up of a pair of channel irons with the bot
toms of the channels in confronting relationship
to form an I-beam. Each of the uprights is 15
seated upon one of the stirrups 29 and riveted
thereto as indicated at 39 in Figure 5. If. so
desired, the uprights may be held in position
adjacent the ceiling I4 of the car in any suita
ble manner. It will be noted that the upright 20
flanges 34 on the grate sections 33 abut the up
rights 36 so that each grate section together with
the vertical portions of the beams 32 forms a
shallow container for refrigerant which prevents
melted refrigerant from leaking, except through 25
the apertures 35. Adjacent the false side Walls
I1, uprights 40 in the form of. a single channel
iron are provided.
The metallic sections 31, which are preferably
stamped or otherwise formed from sheet metal, 30
are provided with forwardly extending flanges 4I
on each side thereof riveted as indicated at 42
to the web portions of the I-beams 36. When so
positioned, the sections 31 form a front for the
refrigerant compartment 2I .
In order to provide a greatly increased surface
area for contact by circulating air, each of the
sections 31 is corrugated or otherwise provided
with a plurality of outwardly extending hollow
vanes 43 which extend into the space provided 40
by the web portions of the uprights 36. The
vanes 43 are preferably formed integrally out of
the same material as the sections 31 and are left
hollow and opening into the refrigerating com~
partment to permit refrigerant to enter into these 45
vanes. With reference to Figures l and 6, it will
be seen that the vanes are uncovered at the top
and bottom thereof, and that the sections 31
do not extend to the insulated ceiling I4 of the
car body and they also terminate above the insu
lated floor I2, so that when these vanes are not 50
entirely filled with refrigerant, circulating air
may pass through the vanes as Well as between
the vanes. The tortuous formation of the sec~
tions 31 provides approximately three times as
much cooling surface as would be the case if the
sections were flat. 'I'he vanes 43 preferably abut
the bulkhead to provide a rigid front for the ice
With the bulkhead 38 mounted as aforesaid 60
and preferably extending substantially even
with the tops óf the vanes but terminating a
small distance short of. the bottoms thereof, an
air passage is defined between the sections 31
and the bulkhead. To guide the air into this 65
path across the sections 31 a sloping baille 44 is
provided which is flanged along each margin
thereof and riveted to the uprights as indicated
at 45. It will be noted that the inside flange of
this baille is stepped as indicated at 46 (Fig. 6) 70
so as to seat nicely upon the top of the sections
With the ice compartment and bulkhead as
sembly constructed as above described, it will
be seen that warm air from the merchandise 75
compartment ofthe car will be guided by theV
baille 44 into Ythe air path between the bulkhead
20 and sections 31. This air will descend, con
tacting the cooling surface provided by the sec
tions 31, passing between the vanes'43 and in
some instances through the vanes 43, and again
enter the merchandise compartment of the car
beneath the bulkhead 38. Some of the circulat
ing air may also pass beneath the false floor I8
grate section, and‘welded or otherwise attached
to the bottom of the respective grate sections. >
The novel grate constructionv includes a plu
rality of similar corrugated'sections 56 and a
grate section 51 adjacent one side of the car.
Each grate section 56 is provided with a side
ñange 58 extending substantially vertically to the
bottom of the grate section, and on the opposite
side thereof, with another flange 59 shaped in
to keep this floor in a cool state. If` another
refrigerating compartment . is provided in the
opposite end of the car body, there will be sub
stantially two areas of circulating air, each ex
tending substantially to the center of Athe car
and following the course of travel outlined above.
The tortuous surface of the front of. the refrig
erating compartment will effectively cool this
air to a much more efficient degree than any
thing developed heretofore of which I am aware.
ZIM In Figure 7», I have shown a modiñed form of
construction for the sections 31. In this in
stance, I have illustrated in cross-section a simi
lar section 45 having side flanges 41 thereon for
attachment to the uprights 36 in the manner be
25 fore described. In this instance, the vaned por
tions 48 of the section are made angular instead
`of with rounded outer extremities and the outer
portions of these vanes are much wider than
the spaces between the vanes. Accordingly, a
30 greater amount of refrigerant may enter inside
the vanes and cool the surfaces thereof more
In Figures 8, 9 and 10, I have shown a modified
form of construction, mainly centered in a novel
35 and easily installed grate construction. In this
construction, the same uprights 36, the same
vaned sections 31 secured thereto, and substan
tially the same bulkhead 38a secured to the up
rights, as before explained, are utilized, so no
40 further description of these structures is neces
sary at this point.
In this instance, a different form of foot or
the form of a hook for hooking over the flange `58 10
on the next adjacent grate section, as seen clearly
in Figure l0. The4 grate section 51.differs from
the sections 55 only in that it is provided with a
vertical flange 58 on each side thereof, since one
of `these flanges will abut the false side wall I1 15
of the car.
It will therefore be apparent that the grate
sections may be easily installed in the refriger
ating compartment by simplylaying the section`
51 in position against the false side wall of the 20'
car, resting upon the angle iron 53 and the angle
55 or joist Sla, as the case may be. The sections
58 are then laid in position, one at a time, with
the side flange 59 hooked over the adjoining
flange 58 until the floor of the refrigerating com 25
partment is covered with the grate.
As seen in Figure 9, the grate sections are Y
each provided with a plurality of apertures 60
in the bottoms thereof and drainage through
these apertures may be expelled from the car 30
in the manner above outlined in connection with
Figure 1.
The angle iron 53 may also be provided with
apertures 6I in its‘vertical flange, as seen best
in Figure 10, to provide additional air circulation 35
space, is so desired.
It will also be noted that, if so desired, the
interlocked flanges 58 and 59 may be bolted to
gether, but such is not necessary to _hold these
grate sections in position.
From the foregoing, it will be apparent that I
have provided means for defining a refrigerant
stirrup 49 for the bottom of each upright is compartment in a refrigerating car including a
utilized. Adjacent the side walls of the car, a bulkhead assembly and a bottom structure. The
half foot or stirrup 50 is utilized to support the bulkhead assembly is simple in construction, easy 45
single channel iron upright 40 in this region. to install and provides a greatly increased cool
ing surface for contact by circulating air. The
The stirrup is provided with substantial triangu
lar shaped side wings which with the bottom and bottom construction includes a very quickly in
back of the stirrup form a socket for the reception stalled grate assembly wherein the parts may be
of each upright 36, each upright being secured to easily laid in position, these parts being so sized 50
and arranged that they cannot shift laterally
the respective socket by rivets or bolts as indi
relatively to each other. The entire structure is
cated at 5I.
As a main grate support, each of the uprights very durable and may be economically manufac
is provided in the upper rear portion thereof tured and installed.
I am aware that many changes may be made 55
with a flange 52, upon which flanges is seated a
and numerous details of construction may be
transversely extending angle iron 53. The ver
tical flange of this angle iron extends upwardly varied through a wide range without departing
to a point above the lower ends of the sections from the principles of this invention, and I,
31, as indicated at 54, to thereby confine the therefore, do not purpose limiting the patent
granted hereon otherwise than is necessitated by 60
60 melted refrigerant in the refrigerant compart
prior art.
ment. The horizontal leg or flange of the angle
iron 53 seats upon the flanges 52 and forms a
rest for a grate construction to be later described
At the opposite end of the refrigerating com
partment, a transversely extending joist 3 I a, sim
ilar in character to the aforesaid joist 3|, pro
vides a main support for the opposite sides of
the grate section. The inner upper corner of
70 the joist 3Ia is capped by an angle iron 55. At
this point, it is to be noted that the angle iron
55 may be one piece exten-ding laterally across the
width of the refrigerant compartment and se
cured to the joist 3 la, or, if so desired, it may be
up of several pieces each the width of a
I claim as my invention:
1. In a refrigerating car, walls deñning a re
frigerant compartment, one of said Walls being of
material of high heat conductivity relatively to 65
the other walls, and said Wall having a tortuous
configuration to present added surface contact
to circulating air, a bulkhead disposed adjacent
said wall to deñne an air passage therebetween,
said bulkhead being shorter than said wall, and a 70
sloping bailie disposed above said bulkhead to
direct circulating air into said air passage.
2. In a refrigerating car, means defining a re
frigerant compartment, spaced supports extend
ing above the ñoor of said compartment along 75
opposite sides thereof, inverted T-beams on said partment, a series of spaced laterally ñanged
supports, and grate sections loosely laid on flanges beams loosely laid on said support, and grate sec
of adjacent beams, the legs of said beams ex
tions loosely laid on the lateral ñanges of ad
tending above said grate sections, and said grate jacent beams, the relative abutment of the sec
. sections having end flanges extending upwardly tions and beams maintaining the proper disposi
between said beams.
3. In a refrigerator car, means defining a re
frigerant compartment, spaced supports at the
bottom of said compartment on opposite sides
thereof, a series of spaced apart beams laid on
said supports, said beams being distributed across
the bottom of said compartment with each of said
beams having a central upstanding ñange and a
lateral ñange on each side thereof, and grate sec
tions laid on the lateral flanges of adjacent
beams, said grate sections maintaining said
beams in position on said‘supports.
4. In a refrigerator car, means defining a re
frigerant compartment, spaced supports at op
posite sides of the bottom region of said com
tion and forming a removable grate structure.
5. In a refrigerating car, walls defining a re
frigerant compartment, one of said walls being
imperforate and including a plurality of hollow
vertically extending fins, a bulkhead disposed 10
against the outer edges of said ñns, the space
between the bulkhead and said wall being open
both at the top and bottom thereof, and a baffle
sloping upwardly and outwardly from the top
of said wall with its outer edge spaced above 15
said bulkhead to guide circulating air into the
space between the wall and bulkhead and through
said fins.
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