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Патент USA US2133722

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Oct. 18, 1938.
v. E. SISSON
2, X 33,722
BULKHEAD FOR REFRIGERATOR CARS
Filed March 51, 1937
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Oct. 18, 1938.
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v. E. SISSON
2,133,722
BULKHEAD FOR REFRIGERATOR CARS
Filed March 51, 1957
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2 Sheets-Sheet 2
Patented Oct. 18, 1938
2,133,722
UNITED STATES PATENT OFFICE
2,133,722
BULKHEAD FOR REFRIGERATOR CARS
Vinton E. Sisson, Winnetka, Ill., assignor, by
mesne assignments,
to Standard Railway
Equipment Manufacturing Company, a. cor
poration of Delaware
Application March 31, 1937,- Serial No. 133939
6 Claims.
(01. 105—-376)
This invention relates to railway refrigerator
cars and more speci?cally to bulkheads therefor
which extend between the side walls of the car
and separate the refrigerant chamber from the
b lading compartment. Such bulkheads are pro
vided with openings adjacent the floor and’ ceil
ing respectively of the car for air circulation be
tween the refrigerant chamber and lading com
partrnent. The bulkhead’ is usually insulated on
10 the‘ side of the lading compartment and between
the openings to prevent direct induction of heat
through the bulkhead.
The object of the invention is to arrange and
associate the component parts of the bulkhead
15 to obtain great strength and at the same time
obtain a relatively large flue area for circulat
i'ng air; both of which increase the volume of
Such a formed plate constitutes a series of ver
tical beams which transmit‘ any horizontally im
posed load thereon to- their‘ opposite‘ ends and is
in» order‘ to carry such loads to the opposite walls
D- of the car I provide a built up truss at the
upper and lower edges of the plate (and also
therebetween if desirable)‘ which are secured to
the opposite walls D; for instance, by the ?anges
H' and bolts l2.
' Each‘ truss comprises a pair of aligned straps
Iii-ill (?at or angular) secured to the opposite
sides of the metallic‘ plate, which straps extend
between and are secured to the opposite‘ walls '
D of the car so that the straps Ii3~—l1l\, thepor
available space within the car‘ which maybe used
tions 2 and 3‘ and the several’ Webs‘ 4 combine
to form‘ a truss. A horizontal load‘ imposed upon
in either‘the lading compartment or the refriger
the plate‘ fromv the lading compartment C“, such
20 ant chamber.
In the drawings:
.
Fig. 1 shows a longitudinal section of a typical
refrigerator car showing the relation of a bulk
head to the other parts of‘ the car.
25
at Hi to- allow col’dI air from the refrigerant cham
ber to enter‘ the fines 65.
'
Fig. 2' shows a top plan view of my‘ bulkhead
and a vertical wall of‘ the car.
Fig; 3‘ shows a vertical cross section of my bulk
head adjacent the top (or bottom)‘ thereof.
Fig- 4 shows. a. horizontal cross section of my
30 bulkhead‘ adjacent the middle thereof.
Fig, 5 is a horizontal cross section of my bulk
head and the adjacent wall of the car.
Fig. 6 shows a perspective view of my bulkhead.
My improved bulkhead A comprises a metallic
35 plate having alternating portions 2—3 in spaced
substantially parallel planes connected by ver
tical webs 4 which preferably extend to the edges
of the plate. Ordinary corrugated plates are
included in this description. A wire netting,
40 mesh or some foraminous metal 5 is secured
to the metallic plate on the side of the refrigerant
chamber B to prevent the crushed ice, or other
refrigerant, from choking the spaces 6 between
the vertical webs, and an insulated wall is se
45 cured to the bulkhead on the side of the lading
compartment C. I In the form shown the insulat
ed wall comprises inner lining 1, and outer lining
8 with an insulation 9 therebetween.
The spaces 6 between the vertical webs 4 form
50
vertical ?ues which communicate with the open
ings above and below the bulkhead for the down
ward movement of warm air which is cooled by
the ice, or other refrigerant. The portions 2 on
the refrigerant side B are preferably apertured
as caused" by a shifting lading, would cause the '*
strap I3r in the refrigerant side B to- act in ten
sion‘ and the strap M‘ in' the compartment side
0' to act in' compression and the webs 4 would
constitute struts therebetween. A force from the
refrigerant side B would reverse the‘ action of the a
straps.
In a similar manner the insulated‘ wall‘ may
be secured to‘ the compartment sid’e‘ C of the
metallic‘ plate and. the wire netting: 5' may be
secured to the refrigerant side‘ of the metallic '30
plate to act as compression and tension members
respectively of a truss, and in such a construction,
the webs 4 would constitute the struts.
In a
completed bulkhead the straps l3—l4; webs 4;
insulated wall and wire netting 5 would all ‘coop
erate to form a very strong truss structure and
a very strong bulkhead.
The metallic fo-raminous wall or netting may
extend only between and be secured to adjacent
portions of the metallic plate, (that is, either
the adjacent webs 4 or the adjacent portions 2)
on the refrigerant side thereof, as shown espe
cially in Fig. 4. The foraminous wall or netting
is preferably in alignment with the portions 2
of the metallic plate. I prefer to weld (l5) this
netting to the metallic plate to obtain a strong
er attachment, eliminate loose parts and retard
corrosion,
The accompanying drawings illustrate the pre
ferred form of the invention, though it is to be
understood that the invention is not limited to
the exact details of construction shown and de
scribed, as it is obvious that various modi?ca
tions thereof, within the scope of the claims, will
occur to persons skilled in the art.
65
3
‘
'
‘
2,133,722
I claim:
1. In a refrigerator car, a bulkhead extending
between the opposite walls of the car and sepa
rating a refrigerant chamber from a lading com
partment with openings above and below said
partment with openings above and below said
bulkhead for air circulation between the cham
ber and the compartment, said bulkhead com
prising a metallic plate having alternate portions
in spaced substantially parallel planes connected
10 by vertical webs to provide vertical flues come
municating with said openings, an insulated wall
so secured to said portions on the side of the
lading compartment as to provide sti?eners be
tween the webs, and a metallic foraminous wall
16 so secured to said portions on the side of the
refrigerant chamber as to provide ties- between
adjacent webs whereby said walls, said portions
and said Webs combine to provide a truss between
the opposite walls of the car to resist horizontal
20
thrusts.
-
4. In a refrigerator car, a bulkhead extending
between the opposite walls of the car and sepa
rating a refrigerant chamber from a lading com
-
bulkhead for air circulation between the cham
ber and the compartment, said bulkhead com
prising a metallic plate having alternate portions
in spaced substantially parallel planes connected
by vertical webs to provide vertical flues com
7 municating with said openings, an insulated wall
on the side of the lading compartment, and. me
tallic foraminous walls extending between and
secured to adjacent portions of the metallic plate
on the refrigerant chamber side of the bulkhead,
said foraminous walls being substantially in
alignment with said portions of the metallic
plate.
5. In a refrigerator car, a bulkhead extending
between the opposite walls of the car and sepa
rating a refrigerant chamber from a lading com
2. In a refrigerator car, a bulkhead extending
partment with openings above and below said
between the opposite walls of the car and sepa
rating a refrigerant chamber from a lading com
partment with openings above and below said
25 bulkhead for air circulation between the cham
ber and the compartment, said bulkhead com
bulkhead for air circulation between the chamber
prising a metallic plate having alternate portions
in spaced substantially parallel planes connected
by vertical webs to provide vertical ?ues commu
30 nicating with said openings, an insulated wall on
the side of the lading compartment, and a metal
lic foraminous wall on the side of the refrigerant
chamber, said walls so attached to said metallic
plate as to combine therewith to provide a truss
35 between the opposite walls of the car to resist
horizontal thrusts.
3. In a refrigerator car, a bulkhead extending
between the opposite walls of the car and sepa
rating a refrigerant chamber from a lading com
partment with openings above and below said
bulkhead for air circulation between the cham
ber and the compartment, said bulkhead com
prising a metallic plate having alternate portions
in spaced substantially parallel planes connected
.145
by vertical webs to provide vertical ?ues com
municating with said openings, an insulated wall
on the side of the lading compartment, and me
tallic foraminous walls extending between and
secured to adjacent portions of the metallic plate
on the refrigerant chamber side of the bulkhead.
and the compartment, said bulkhead comprising
a metallic plate having alternating portions in
spaced substantially parallel planes connected by
vertical webs to provide vertical flues communi
cating with said openings, and pairs of aligned
straps extending between and secured to said
opposite walls, said straps so secured to opposite
sides of the metallic plate adjacent the top and
bottom respectively thereof that said straps and
webs cooperate to provide trusses between said
opposite walls to resist horizontal thrusts.
6. In a refrigerator car, a bulkhead extending
between the opposite walls of the car and sepa
rating a refrigerant chamber from a lading com
partment with openings above and below said
bulkhead for air circulation between the cham
ber and the compartment, said bulkhead com
prising a metallic plate having alternating por
tions in spaced substantially parallel planes con
nected by vertical webs to provide vertical ?ues
‘communicating with said openings, and a pair
of aligned straps extending between and secured
to said opposite walls, said straps so secured to
opposite sides of the metallic plate that said
straps and said Webs cooperate to provide a truss
between said opposite walls to resist horizontal
thrusts.
VINTON E. SISSON.
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