US2214544A - Refrigerator car - Google Patents

Description

sept. 10 1940; R. a. mmm

REFRIGERATOR CAR Filed July 31, v19.','1 2 shuts-sheet 1 Sept. 10, 1940. n. B. wlNsHlP 2,214,544

REFRIGERATOR CAR Filed July 31. 1937 2 Sheets-Sheet 2 Q' ioooooo n Y 0 l O I ooo ooo; Ooo 000| 00er OOO] @90| ooo Puentes sept. To', 1940- PATENT OFFICE 2,214,544, BEFBIGERATOB. CAB Ralph B. Winship, Montreal, Quebec, Canada, as-

assignmen signor, by mesne ta, to Standard Railway Refrigerator Company, a corporation of Delaware application .my s1, 19st, sen-ln No. 156,659

1s claims. (ci. sla-17) The invention relates to refrigeratorcars for circulating refrlgerating air-may move below'A o or aroundand also through the container and be cooled by the refrigerant, thus causing the air 'to circulate by convection. through iiues and channels provided for the purpose. Refrigerantf containers, such as the usual 'brine tank, are now 5 made with solid bottoms, tops and side walls so that the circulating air moves outside thereof and in contact therewith, but not indirect contaci; with the refrigerant. By allowing the circulating air to directly engage the refrigerant the heat transfer from the air tol the refrigerv ant is greatly increased and the temperature of the circulating air is lowered. and the convection movement of the air is augmented, thus in. ycreasing the eihciency of the refrigerating system.

. Another object is to provide an insulated partitionv or pan to catch the liquid refrigerant which splashes through the air circulating apertures in the tank and drains it intovertlcal lo air circulating nues in-the wall of the eau-from whence it is drained outside of the car, but which in the meantime further cools the -air in `thevertical flue. .v

Another object is to position the air circulat- |5 ing apertures in the refrigerant tank so that the ventilating air entering the roof hatchway may move through as well as around the refrigerant Another object of the invention is to provid i Another object is to provide a metallic meat rack carline of great strength for its weight, and vfurthertoprovidez ueanstocarryoifmoistureor is condensation so that it will not come in with the meat nor floor of the car, and a further obiect is to form the last mentioned means sothat it will support the meat. rack carline upon the -wall of the car.

Inthe drawings:` 5

Fig. 1 shows a half .-cross section of an upper part of a railway car lhaving my improvement and is taken on linevI-I'of Fig. 3.

Fig. 2 shows a section through the vertical wall of the railway'car on line 2-2 of Fig. 1. 10

' Fig. 3 shows a longitudinal section of the railway car on line 3--3 of Fig. 1.

The drawings illustrate my invention adopted for use in what is known as the top bunker refrigerator car; that is, wherein the refrigerant chambers or tanks 2 are positioned adjacent to j the roof 3 of rthe car and provided with hatchways 4 for loading the chambers with a refrigthe insulation to protect the insulation from molsture,and to assist in resisting the tendency of the car to weave due to the motion thereof.

The roof shown comprises metallic sheets l0 ex tending from eave I1 to eave Il of the car'and overlapping the side plates Il and preferably sethe cap 22 and flanges 2| together. The roof 40v sheet It is cut out at the hatchways and provided with an upstanding flange 24 adjacent the hatch insulation 2l.y The hatchway shield 20 extends upwardly inside of the hatch insulation 24 to protect the insulation. A cap 2l covers the 45 hatch insulation 2 5, shield '20 and roof flange 24. The refrigerant chamber 2 is provided with an inclined upwardly proiecting flange 3l around the refrigerant feeding opening whic underlies the hatch shield 2l. l 50 A preferably downwardly and outwardly sloping partition or ceiling 33 is positioned below -each row or series of refrigerant chambers l and spaced therefrom so as to provide a downwardly inclined iiue 34 below the refrigerant chambers. 5'5

' channel 36 with the tops 38 of these walls positioned above the lower part 39 of the chambers. This downwardly inclined iiue 34 communicates with the vertically extending flue 40 in or adjacent to the side wall of the car, which flue 40, in the form illustrated, is between the side wall partition 4I and the side wall itself 42. Each side of the side wall flue 40 is preferably lined with a preferably galvanized thin metallic sheet 43-44 to retain the moisture within the flue.

and also each side of this side wall flue may be lined with a layer of Sisalkraft paper 45-46 or some other light insulating material to prevent leakage of heat.

Any convenient floor rack may be used to provide a space between the lading and the floor of the car, which space communicates with the side wall flues 40.

In such a refrigerator car the refrigerant in the chambers 2 cools the air surrounding them Aso that, due to the increased weight and density, the air moves down the downwardly and outwardly inclined ceilings 33 (that is, in the fiues 34 between the ceiling 33 and the refrigerant chamber 2) into the side wall vertical iiues 40, and thence into the space between the floor rock and the iioor of the car, and then upwardly through openings in the iioor rack and between or through the lading, and being warmed thereby, rises and passes through the air channel 36 between the sloping ceilings 33 and thence around the refrigerant chamber 2, and being cooled thereby, `repeats the. cycle. heating of the airis continuously repeated. A further desirable feature of such construction is that the side wall ues 40 provlde a blanket of cooled air around the lading and the water on the iioor of the car also keeps the fioor cold. Ice, salted ice, brine, dry ice or any of the usual refrigerants may be used in such a system. The

arrows indicate the air movement. 1

My improved refrigerant container or tank 2 is provided with a solid or imperforate bottom 45 and the lower parts 46 of the side walls thereof are also solid or imperforate, while the upper parts 41 of some or all of the side walls areA perforated or provided with apertures Ell- 5I whereby the circulating air may come in direct contact with the refrigerant so as toincrease the capacity of the device for cooling the circulating air. 'I'he lower parts l46 of the side walls .of thecontainers are solid'soas to retain the brine within the tank 'so as' to obtain the maximum heat absorbing capacity therefrom. y'I'his advantage would also be obtained from the vmelted vice when a solid ice. is used. Experience snows that e lime brine left m the ear whilethe car is being unloaded keeps the lading cool while being inspected and unloaded. When desired the brine or melted ice may beirun `into the vertical iiues 40 through the drain '43 which y is controlled by thedrain valve handle 49.

The beam or carline 60 extends between and is secured to the opposite walls 42 of the car and comprises an arched or apexed compression member 6| consisting of a web 62 and depending flanges 63 and an arched or apexed tubular section tension member 65 preferably made of Such cooling and ports (the spacers 68 between the tank and the l ceiling are positioned over these beams or carlines). These beams 60 also hold the sidewalls in their proper relative position by preventing them from coming together or separating. They also support the roof of the` car.

'I'he struts '6 6 and compression members 8| form recesses 69 for the reception of the meat hooks 10 which support the carcasses of animals. 'I'he struts 66 are positioned so that the carcasses will be spaced apart to allow circulation of air between.

The carlines 60 are supported by the angular members 13 extending lengthwise of the car which, in turn, are supported by vertically disposed posts 14 .in the'side wall flue 40. Condensed moisture, which forms on the metallic beams, runs downwardly and is caught within thegutter formed by the upwardly inclined arm' 16 and the vertical arm 11 of the angular member 13. The water is drained into the side wall flue 40' through apertures 19 in the partition and arm 16.

The accompanying drawings illustrate the preferred form of the invention, though it is to be understood that the invention is not limited to the exact details of construction shown and described, as it is obvious that Various modifications thereof, within the scope of the claims, will occur to persons skilled in the art.

I claim:

1. In a refrigerator car` having spaced apart walls, each wall comprising vertical posts with a partition secured to said posts to provide vertical ues between the posts, each wall provided with a'horizontally disposed member secured to 4( a plurality of said posts and provided with an upwardly inclined arm, an arched metallic beam Aextending between and secured to the members on the opposite walls which rests upon and is secured to said upwardly inclined arms, aper- 4l tures in said partitions substantially flush with the upper surfaces `of the arms which commui nicate with the vertical ues whereby condensed moisture on said metallic beam follows the beam to the upwardly inclined arm and flows through 54 said apertures into said vertical flues.

2. In a refrigerator car having spaced apart Ywalls, each wall comprising vertical posts with a partition secured to said posts to provide ver' tical nues between the posts, each wall provided 5 provided with an upwardly inclined arm posil tioned below the end of said metallic beam to catch the moisture of condensation, and means to drain said moisture into said iiues.

3. In a refrigerator c`ar, the combination of fa roof, spaced apart walls each provided with 6 a vertical flue, a refrigerant container adjacent said roof, and adjacent one of said walls, a ceiling below said container, spacers supporting the container upon said ceiling and in spaced relation thereto to provide a flue therebetweenv which l communicates with the adjacent side wall iiue, and a beam beloweach spacer and parallel .therewith, which beam extends between and is supj ported by said spaced apart walls. a tube slightly iiattened with the tension and 4. In a refrigerator car, the combination of 1 l a vertical a verticai iiue associated with sol said wall, a refrigerant container adjacent said wall, and an insulated partition below said container and spaced therefrom to provide a substantlally horizontal ue communicating with said vertical ilue so that the air in vsaid horizontal ilue, being cooled by a refrigerant in said container,y induces a circulation of air through said ues, the bottom and lower parts of the sides of said refrigerant container being solid with the upper parts of certain of said'sides provided with apertures, whereby aliquid refrigerant in said containerxwill spill over said solid parts and pass through said horizontal and vertical ues thereby further cooling air circulating in said ues.

5. In a irefrigerator car, the combination of a vertical wall, avertical ue associated with said wallLa refrigerant container adjacent said wall at a higher elevation than said ue and a partition below said container and spaced therefrom to provide a substantially horizontal nue communicating with said vertical flue so that the ain in-said horizontal ue being cooled by a refrigerant in said container induces a circulation of air through saidvues, the bottom and lower parts of the sides of said refrigerant container `being solid with the upper part of one of said sides provided' with an aperture, whereby a liquid refrigerant in said container will spill through said aperture and v pass through said vertical flue thereby further cooling air circulating in said vertical ue.

6. In a refrigerator car having a refrigerant container above the lading compartment, a vertical ilue associated with a vertical `wal1 of said car, and-a partition below said container and spaced therefrom to provide a substantially horizontal flue communicating with said vertical nue so that the air in said horizontal flue being cooled by a refrigerant in said container induces a circulation 'of air through said fiues.-V the bottom and lower parts of the sides of said refrigerant container being solid with the upper part of one of said sides provided with an apert whereby a liquid refrigerant in said container-'will spill through said aperture and pass through said vertical iiue thereby further cooling air circulating in said vertical iiue, means to' drain a liquid refrigerant from said container tosaid vertical flue, anda closure for said means operable from within said lading compartment..

'7. In a refrigerator car. the combination of a roof, spaced apart walls, a vertical nue associated with one of said walls, a refrigerant container adjacent said roof, a ceiling spaced below I which forms on said metallic c arline into said said' container to providea substantially horizontal flue therebetween communicating with the vertical nue, a-metallic carline supporting said ceiling which extendsbetween andvis secured to said walls,'and means to drain condensate vertical flue. A l L 8. In a refrigerator car having a' refrigerant container above the lading compartment, a vertical ue associated with a vertical wall of said car, and a partition below said Acontainer and spaced therefrom to provide a substantially horizontal nue" communicating with said vertical flue so that the air in said horizontal flue being cooled byarefrlgerantinsaidcontainerinducesacirdownwardly toward said vertical wall so that when part of the liqu'id refrigerant spills into the horizontal flue the remaining refrigerant will be adjacent the vertical flue, and means to drain the refrigerant from the container into said vertical ue.

11. A structure as dened in claim 4 wherein thelower parts of said apertures are on a substantially horizontal line. l

12. A structure as defined in claim 4 wherein the side of said container adjacent said car wall is provided with apertures so that some of said liquid refrigerant willl spill directly into lsaid vertical flue. 4

13. In a refrigerator car, the combination of Y a 'vertical wall, a vertical flue associated with said wall, a refrigerant container with one side thereof adjacent said nue, and an insulated partition below said container and spaced therefrom to provide a substantially horizontal ilue communicating 'with the vertical flue so that air in the horizontall flue being cooled by a refrigerant in said container. induces a circulation of through said flues, the bottom and lower parts of the sides of said container being imperforate I with the upper parts of the side of the container associated with one cisne walls. a refrigerant w container adjacent said roof, a ceiling below said container, spacers supporting the` container upon said ceilingand in spaced relationthereto` to provide a ilue therebetween which communicates with said nue, and beams below said spacers 55 and parallel therewith', said beams extending between and su'pportedby said walls. .15;'In a refrigerator car. the combinationof a vertical wall,v a vertical ue associated with said wallra refrigerant container adjacent said jwall at a higher elevation than said due. and means to direct circulating -air into substantial contact with said container and thence into said flue thereby cooling said air and inducing a downward flow .of air through said ilue,'said 65 containerbeing formed to retain liquid refrigerant in the lower part thereof and to overiiow l some of said liquid refrigerant from said container into said ilue during service movements of the car thereby further cooling said air. ,o

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