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Патент USA US2055537

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Sept. 29, 1936.
2,055,537
' G. E. HULSE ET AL
REFR IGERATOR CAR
Filed June 21, 1930
4 Sheets-Sheet 1
Q,
INVENTOR$
"$101 6Ackn
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44402,
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8%"2744.9
ATTORNEYS
72;
» Sept. 29, 1936.
G. E. HULSE ET AL
REFRIGERATOR
CAR
Filed June 21, 1950
2,055,537
'
4 Sheets-Sheet 2
7 INVENTO
M14
Sept. 29, 1936.
'
G E HULSE ET AL
2,055,537
REFRIGERATOR CAR
Filed June 21, 1950
4 Sheets-Sheét 3
5149’
'ITORNEYS
‘Sept. 29, 1936.
G. E. HULSE ET AL
2,055,537
REFRIGERATOR CAR
Filed June 21, 1950
4 Sheets-Sheet 4
76 ,
2,055,557
Patented Sept. 29, 1936 I’ , V
UNITED sTATss2,055,531
EPA-TENT I ‘(OFFICE
REFRIGERATOR can
George E. Hulse, New Haven, Conn, and Frank
M. Brinckerho?’, Suffern, N. Y., assignors to
The Safety Car Heating & Lighting Company,
a corporation of New Jersey
,
Application June 21, 1930,v Serial No. 462,794
15 Claims. (Cl. 105-355)
This invention relates to refrigerator cars and
the like.
The refrigerating compartment A is provided
at its sides, ends and top with an outer wall of
.
One of the objects thereof is to providea prac
tical refrigerator car body of simple and strong
construction. Another object is to provide a car
body of the above nature, the action of which will
be highly ei?cient. Another object is to provide
a structure of the above nature in which heat
leakage is reduced to a minimum. Other objects
10 are to provide in structures of the above nature
metal, an interior woodenrwall, and an inter- ‘
mediate wall of waterproof paper and insulation
material. The outer wall of metal also encloses
the sides, top and end of compartment B. The
outer wall is preferably constructed of steel
painted with aluminum paint to minimize heat
absorption and to produce a strong, rigid, water
proof body.
10
an arrangement of parts well-suited to mechani
cal refrigeration; a construction in which de
Referring to Fig. 2, the metal side walls con
sist of sheathing 2, the lower edges‘of which rest
terioration of heat-resistance qualities is reduced
to a minimum; and such a disposition of parts
as will permit thecontents to be maintained in
ef?cient and sanitary condition.
Other objects will be in part obvious and in
upon and are riveted to a side sill 3, and the up
per edges of which are riveted to the inner side
part pointed out hereinafter.
'
of a plate 3. rl‘he sheathing 2 is reenforced by in
terior posts 5, preferably of steel and riveted to
the sheathing 2, the side sill 3 and the plate 4.
The metal end and partition walls of the car may
The invention accordingly consists in the fea
20 tures of construction, combinations of elements,
and arrangements of parts, which will be exempli
?ed in the structure hereinafter described, and
the scope of the application of which will be in
be similarly constructed withadditional sheath
ing to provide for the raised roof. It may here 20
be noted that the term “steel" is used throughout
dicated in the sub-joined claims.
In the accompanying drawings in which is
25
sists of roof sheathing 6, riveted at either side
in a broad sense to cover any suitable metal or
alloy thereof.
The metal wall of the roof con
of the car to an upper sill ‘l, which in turn is M
shown one of the various possible embodiments riveted to the plate 4. Roof sheathing 6 may be
of the invention:—
supported by interior carlines 8 riveted thereto.
Fig. l is a side elevation partly in section of a
The interior wooden side walls consist of
refrigerator car embodying the invention.
sheathing 53, secured to wooden posts to. Posts
Fig. 2 is an enlarged perspective view partly
it] are tenoned into a side sill 2! supported as
30
broken away to show the constructionof the‘ hereinafter described and are secured at their
sides, top and bottom of the refrigerating com
upper ends to a wooden plate !2. Plate i2 is
partment.
435
‘
'
Fig. 3 is an enlarged cross-section of the car
body.
'
'
located outside posts in and inside steel posts 5,
and is secured to steel posts 5. Sheathing 9 is
preferably provided with tongue and groove con
.
Fig. 4 is a diagrammatic view illustrating the
operation of’ the ventilators.‘
Fig. 5 is an enlarged horizontal section through
acorner of the refrigerating compartment, and
Figure 6 is an enlarged perspective view partly
broken away to show the construction of the ?oor
of the refrigerating compartment.
Referring to Fig. 1,, the car body is supported
nections to prevent moisture from seeping
through the wall. The wooden end walls ‘of re
frigerating compartment A may be ‘similarly con
structed.
»
‘
The interior wooden top wall of compartment
A consists of sheathing 93 supported by and se
cured to wooden cross pieces l4 carried by plates
'll secured to posts in at either side of the car.
in the usual way on supporting beams I, to which
Sheathing I3 is preferably provided with tongue
the usual trucks and wheels are attached.
and groove connections.
'
45
The car body is divided into two compartments,
A and B, separated by apartition C. Compart;
ment A is the refrigerating compartment and
The insulation between the exterior metal walls
and the interior wooden walls preferably con
sists of two strips l5 and 16 of insulating ma
compartment B contains a suitable apparatus
terial. Sheets of waterproof paper may be in
serted-above, below or between the insulating 5o
50 (not shown), either of the absorption or com
pression type, for cooling compartment A.‘ Ex
tending from the apparatus in compartment B
into compartment A are cooling pipes D, which
are preferably located adjacent the roof in com
partment- A.
_
-
strips l5 and I6.
Additional insulating strips
'may be provided if needed.
'
>
The construction of the ?oor of the refriger
ating compartment is best shown in Fig. 2. ,It ‘
consists of a bottom layer of transverse ?ooring 55
2,055,537
2
ba?le surfaces 38. The air thus entering the re
frigerating chamber passes through the chamber
I‘! which rests upon side sills 3 and a central sill
[8 (see Fig. 3). Secured to the flooring ll, pref
-erably at the center and at either side of the
car,is alongitudinal plank l9. At intervals along
planks I9, blocks 39 are provided to support side
and center sills 2|, the blocks 39 for the side sills
being preferably located below the posts l0.
Immediately above the ?ooring 11a strip of in
sulating material 20 is laid,‘ contacting with the
10 ?ooring l1‘ and extending over the planks l9 be- ‘
and out the other end of the car through ex
haust ventilators 34 located on the roof over
swinging doors 35,. Ventilators 34 are construct
ed and arranged to direct the currents of air
through screened openings 36 and 31 formed in
the ventilators, as indicated by the arrows in
‘
Fig.
4.
-
-
By reason of certain other features of- our in
10
tween blocks 39.‘ Between side and center sills
vention, we are enabled further to achieve high
2| and contacting with insulation strip 329 a“ e?iciency of heat insulation, and we are enabled
second insulation strip 22 is applied. Waterproof very materially to diminish the transmission of
paper or compound 40 is preferably inserted above heat, by conduction, from the exterior of the car
to the interior thereof. For example, the sheath 15
15 strip 22. Above strip 22 and the waterproof
compound, transverse sheathing 23 is laid, and ing 9, preferably of wood, is secured to the ver
above sheathing 23 heavy transverse planking 24
is secured. Sheathing 23 is supported at its ends
and center by sills 2i. Planking 24 is supported
20 by side sills 25. Above planking 24 a ?nished
?ooring 25 is preferably secured. Between the
edges of the flooring layers and the side sills
3 at either side of the car a longitudinal strip 26
of cork board or the like is preferably inserted.
25
It will be noted that the heavy transverse.
planking 24 is supported at its ends by the side
sills 2| which sills are in‘ tin'n supported by the
blocks 39. This arrangement further reduces
heat leakage.
30
'
,
Plankin‘gs 23, 24 and 25 are preferably pro
tical posts l0, also of wood, the latter being sup
ported'by the horizontal stringers l2 (see Fig. 2).
The ‘stringers I 2, along which the vertical posts
[0 are spaced, are secured, as by the metal brack
20
ets 50, to the steel channel iron columns or posts
5 to which the exterior steel sheathing 2 is se
cured, but the relative spacing between the in
side wooden post l0 and the-columns 5, as is
better shown in Figure 2, is such that ‘a portion 25
of substantial. length of the stringers l2 inter
venes any one wooden post I0 and an adjacent
steel post 5.
.
'
With such an arrangement as this, the ?ow of
heat, by conduction of the materials employed, 30
vided with tongue and groove connections to re- ' from the one side of the wall to the other side
sist seepage of moisture therethrough and pro‘
tect the insulation strips 20 and 22, while ?oor
ing I1 is preferably provided with ship-lap con
35 nections or the like to permit any moisture which
may reach said ?ooring from the interior of the
car to readily pass out of the car, these tongue
.and groove connections and ship-lap connec
tions being better shown in Figure 6.
,
Compartment B is preferably not insulated.v as
it is desirable that any heat generated by the
refrigerating apparatus be allowed to escape
readily from the‘car.
V
>
It will be noted that moisture tends to pro
45 gress toward a cooler‘ area; for example, from
outside a refrigerator car toward the cooler re
frigerating chamber.
Applicant's tight outer
wall of steel or the like prevents moisture from
entering the refrigerating compartment from
50 without the car. As the tendency of any mois
ture in the car is to remain in the vcar, it will
have little tendency to seep through the wooden
walls to the insulating strips. Thus, ‘in appli
cant’s structure the insulating qualities of the
55 insulating material are preserved inde?nitely.
As best shown in Fig. 4, provision is made for
ventilating the refrigerating compartment when
the car is not refrigerating. As there shown, the
upper right hand end of the-refrigerating com
60 partment is provided with a box 29 extending
across the car and having openings at either side.
Each opening is provided with a door 38 which
is closed during refrigeration and opened for
ventilation. A screen 3| is preferably provided
over each opening to keep out cinders and dirt.
Within the box29 and near the top thereof, a
screened opening 32 leading into the refrigerat
ing chamber is provided, and at the bottom of
the box a plurality/of screened openings, 33 lead
70 ing into the refrigerating chamber are provided.
when the doors 30 are opened, aircurrents in
duced by exhaust ventilators 34 at the other end
of the car pass into box 29 and enter the refrig
erating compartment through screened openings
75 32 and 33.. Box 29. is preferably provided with
of the wall, as for example from the outside
sheathing‘ 2 to the inside sheathing 9, must
proceed by way of a somewhat circuitous path,
a path materially longer than the over-all thick as,
ness of the ‘composite wall of the car. Illus
‘tratively, heat~fiowfrom the steel sheathing 2
to the inside wooden sheathing 9 vmust take
place byway of .the'steel post 5, thence hori
zontally through the portion of the wooden
stringer l2 that mechanicallyconnects the steel
post 5 to an 'adiacent wooden post ID, to a.
wooden post “I and from the latter to the wooden ‘
sheathing 9. The stringer I2 is of relatively
small cross-section and conduction of heat there
along and by way .of the above-described cir
cuitous path is very slow. '
45
-.
As appears plainly in Figures 1 and 3, and
particularly in Figure 5, we provide vertically
extending battons 5| secured to the inside 50
wooden sheathing 9 by suitable metal cleats 52
and‘. suitably spaced about the side and end
walls of the interior of the car body. These
batto-ns 5| keep the lading within the car spaced
from the sheathing 9 while a load-supporting 55
floor 53 (see Figs. Land 3), made up of suitable
boards or‘ planks preferably spaced, as shown
in Figure 8, and supported by the spaced cross
struts 54 (Fig. 1;)‘ keep the lading spaced up
wardly from the ?ooring 25, this construction 60
insuring theprovision of adequate passages for
the effective circulation of air, cooled by the
coils D, into thermal contact with the material
' to be cooled.
‘
It will be seen that there is provided a con
65
struction of an essentially practical nature in
which the several objects of the invention are
attained.
_
-
~
,
.
‘Among other advantages the invention pro 70
vides a strong and durable ‘steel refrigerator.
car; a car which is substantially ‘free from heat
leaks; a car in which the insulation is protected
from moisture; and a car in which an end com
partment is provided for refrigerating apparatus 75
_ 2,055,537
‘
3
_
so that the refrigerating compartment need not . to said framework, insulating material disposed
be opened in transit.
~
between said casing and said compartment, a
As many possible embodiments may be made ‘?oor supported by said framework and spaced
of the above invention, and as many changes from said compartment, and insulating means
might be made in the embodiment, above set disposed between said ?oor and said com
forth, it is to be understood that all matter
hereinbefore set forth or shown in’ the accom
7. In a refrigerator car construction, in com
panying drawings is to be interpreted as illus ' bination, means forming a framework for a re-,
trative and not in a limiting sense.
frigerating compartment including a pair of
10
We claim:
horizontal metal frames spaced from each other v10
1. In a refrigerator car, a floor construction by substantially vertical metal posts, means
comprising a bottom layer of transverse ?ooring ’ forming said compartment within said frame
supported by the car side and center sills, lon
work and including a plurality of wooden up
gitudinal side and center strips secured on said rights spaced from said posts, a metal casing
15 ?ooring, blocks located at intervals on said
covering the sides and top of said compartment 15.
partment.
said blocks, and heavy transverse planking se
cured to said wooden side and center sills.
2. In a refrigerator car, a ?oor construction
20 comprising a bottom layer of transverse ?ooring
supported by said framework comprising planks
having ship-lap connections, and insulating
means disposed between said base and said floor.
8. In a. refrigerator car construction, in com
25 blocks, heavy transverse planking secured to said
bination, means forming a framework for a re
wooden side and center sills, and insulating
strips interposed between said planking and said
‘ substantially vertical metal posts, means forming
' an upper layer of heavy wooden planks, and
an intermediate layer of insulating material;
the upper layer of planks having tongue and
groove connections and the lower layer of floor
ing having ship-lap connections, and the upper
layer of planks being supported by longitudinal
sills resting on spaced blocks interposed between
said sills and the lower layer of ?ooring.
4. In a refrigerator car construction, in com
40 bination, a steel base frame, a steel top frame,
a plurality of substantially vertical steel posts
connected at their opposite ends to said-frames,
a wooden frame supported by said base frame,
a plurality of wooden uprights secured; to said
45 last-mentioned frame and spaced fromsaid
posts, a wooden frame supported by said up
-. uprights substantally adjacent said top frame,
means forming a refrigerating compartment
supported by said wooden frames and said up
50 rights and spaced from said posts and said ?rst
two mentioned frames, and means forming ‘a
steel sheathing secured to said ?rst two men-‘1
tioned frames and said posts and enclosing three 1
sides of said compartment.
55
5. In a refrigerator car construction, in com-.
bination, means forming a framework for. a
refrigerating compartment including a pair of
horizontal metal frames spaced from each other
65
70
75
25
frigerating compartment including a pair of hori
zontal metal frames spaced from each other by
3. In a refrigerator car, a floor construction
30 comprising a bottom layer of wooden ?ooring,
60
i
base of said compartment comprising planks '
having tongue and groove connections, a floor 20
supported by the car side and center sills, lon
gitudinal side and center strips secured on said
flooring, blocks located at intervals on said strips,
wooden side and center sills disposed on said
35
»
and spaced therefrom, said casing being secured
to said framework, insulating material disposed
between said casing and said compartment, the
strips,‘ wooden side and center sills disposed on .
?ooring.
'
said compartment within said framework and
including a plurality of wooden uprights spaced 30
-_ from said posts, a metal casing covering the sides
and top of said compartment and spaced there
from, said casing being secured to said frame- ~
work, and a‘ layer of insulating material dis- ~
posed between said framework and said com 35
partment, said material substantially covering
said casing and said posts.
9. In a ‘refrigerator c'ar construction, in com
bination, a metal base frame, a metal top frame,
a plurality of vertical metal posts supported by 40
said base frame and connected to said top frame,
a wooden base frame supported by said metal
base frame, a pluralityof wooden uprights sup
ported by said wooden base frame and spaced
from‘ said posts, a wooden top frame supported 45
between said posts and said uprights, means
forming a compartment supported by said
wooden frames and said uprights, and means
forming an enclosure supported by said metal
frames and said posts and spaced from said com
partment.
5,0
‘10. In a refrigerator car construction, in com
bination, a metal base frame, a metal top frame,
a plurality of vertical metal posts supported by
said base frame and connected to said top frame, 55
av wooden base frame supported by said metal
base frame, a plurality of wooden uprights sup
ported by said wooden base frame and spaced
by substantially vertical metal posts,‘ means from said posts, a wooden top frame supported
forming said compartment within said frame between said posts and said uprights, a plurality 60
of lateral beams bridging the longitudinal sides
work and including a plurality of wooden up
of said top wooden frame, a plurality of boards
rights spaced from said posts, and a metal cas
secured to said uprights and forming the walls
ing covering the sides and top of said compart
ment and spaced therefrom, said casing’ being of a refrigerating compartment, a plurality of .
boards supported by said. beams and said top 65
secured to said framework.
_ .
wooden frame formingtheroof of said compart
6. In a refrigerator car construction, in com
ment, means forming a ?oor for said compart
bination, means formingaframework for a re
frigerating compartment including a pair of. ment supported upon said wooden >base frame,
horizontal metal frames spaced from each other and a metal-casing surrounding said, compart
by substantially vertical metal posts, means ment and'secured to said metal posts and said 70
‘metal frames:
\
r
forming said compartment within said frame
11. In a refrigerator car'construction, in com
work and including a plurality of wooden up
rights spaced from said posts,v a metal casing bination, means forming a framework for a re- .
covering the sides and top of said compartment frigerating compartment including a pair of hori
and spaced therefrom, said casing being secured ‘ zontal metal frames spaced from each. other by 73 ._j
4.
2,055,537
substantially vertical metal posts, means forming
a ?oor supported by one of said metal frames,
a plurality of spaced longitudinal beams sup
substantially vertical metal posts, means forming
said compartment within said framework and
including a plurality of wooden uprights spaced
ported by said ?oor, a wooden framework sup-1
ported by said beams, a secondary ?oor sup
ported upon said wooden framework, a series of
from said posts, a metal casing covering the sides
and top of said compartment and spaced there
upright wooden posts supported by said wooden,
from, and means disposed between said posts for
spacing said casing from said framework.
framework and spaced from said metal posts,
14. In a refrigerator car construction, in com- ,
means forming a chamber supported upon said ' bination, means forming a framework for a re
10 secondary floor and secured to said wooden posts,
and a metal casing surrounding said chamber
and secured to said framework.
12. In a refrigerator car construction, in com
bination, means forming a framework for a re
15 frigerating compartment; including a pair of hori
frigerating compartment including a pair of hori
zontal metal frames spaced from each other by
substantially vertical metal posts, means forming
said compartment within said framework~and
including a plurality of wooden uprights spaced
from said posts, a metal casing secured to said
zontal metal frames spaced from each other by ' framework and covering the sides and top of
substantially vertical metal posts, a floor com
said compartment and spaced therefrom, and
prising planks having ship-lap connections sup
stringer members connecting said posts and said
ported upon one of said horizontal frames, a uprights, the portion of one of said stringer mem
.20 series of longitudinal strips supported upon said bers between an adjacent post and upright be
?oor, a series of spaced lateral strips supported ing of greater length than the distance between
upon said ?rst-mentioned strips, a horizontal said metal casing and said refrigerating com
wooden frame supported upon said last-men
tioned strips, a secondary ?oor supported upon
15. In a refrigerator car construction, in com
25 said wooden frame, a plurality of wooden up
bination, means forming a‘framework for a re
frigerating compartment including a pair of hori
rights secured to said wooden frame, heat in
sulating material disposed between said ?rst
zontal metal frames spaced from each other by
mentioned floor and said secondary ?oor, a. hori¢ substantially vertical metal posts, a ?oor sup
zontal wooden frame disposed between said up— ported upon one of said horizontal frames, a plu
30 rights and said posts and secured thereto, means rality of spaced longitudinal beams supported
forming a compartment secured to and supported by said ?oo'r,_ a plurality of spaced cleats dis
by said last-mentioned wooden frame, said up
posed along said beams, a wooden frame mounted‘
rights and said secondary floor, a metal casing upon said cleats, a plurality of boards forming
enclosing the sides and top of said framework a secondary floor supported upon said wooden
35 and spaced from said wooden frames by said frame, insulating material disposed between said
posts, and heat insulating material disposed be
secondary floor and said ?rst-mentioned floor,
tween said casing and said compartment, the a series of wooden uprights secured to said
floor of said compartment comprising a layer wooden frame and spaced from said‘ posts, a
of planks having tongue and groove connec
compartment supported upon said secondary
floor and secured to said posts, and a casing en
'40 tions.
13. In a refrigerator car construction, in com
ciosing three dimensions of said compartment
bination, means forming a framework for a re
and secured to said framework.
rigeratirig compartment including a pair of hori
GEORGE E. HULSE.
zontal metal frames spaced from each other by
FRANK M. BRINCKERHOFF.
partment.
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