US1979009A - End wall for refrigerator cars - Google Patents

Description

Oct. 30, 1934. w. P. MURPHY END WALL FOR REFRIGERATOR CARS Original Filed Dec. 2, 1931 I Inuemor: Wa/Zer P Mu!" 58 I i I! a9 Attorney Patented Oct. 30, 1934 END WALL FOB. REFRIGERA'I'OR CARS Walter'P. Murphy, Chicago, 111., assignor to Union Metal Products Company, Chicago, 111., a corporation of Delaware Application December 2, 1931, Serial No. 578,528 Renewed March 16,- 1933 Claims.

cars which are used to transport perishable goods'. Such'cars are provided with insulated walls roof and floor to maintain a substantially v ev'en 'temperature within the carby keeping out the'hea't and coldof thefoutside atmosphere and retaining the cold air within the car, which air has been cooled by some sort of artificial refrigerating'system. l

The modern refrigerator car has an ice basket adjacent each end separated from the loading portion ofthe car'by a-bulk-head and anupper space is provided between th'ebulk-head and the ceiling of the car and anotherspace is provided between the bulk-head and the iloor'ofthe car.

ice basket is in spaced relation to the bulkhead-and'also the end'wall of the car (and also the side walls of the car)"so that'thewarm' air' adjacent the ceiling of the car is cooled a's it ientersthe ice box and in cooling falls through the spaces aroundthe'icebasketand is further cooled until it passes out of the ice box through thetlower space'bewreen the bulk head'and the floor, and coming in contact'with the relatively lwarm lading is warmed thereby, and rises and repeatsithe above mentioned process forming a circulation of air for cooling the lading.

It is not uncommon to load these ice baskets with four thousand to five thousand pounds of ;ice and when the car is suddenly stopped or started this ice is thrown violently against the end wall, frequently damaging the end wall and also damaging the insulation of the end wall so that its efficiency as insulation is reduced. For instance, the end wall is frequently bulged by the impact of the ice against it so that the outside sheathing is cracked or split which allows water, snow, sand, and other foreign articles to come in contact with the insulation which destroys its insulating qualities. Such insulating material frequently comprises hair felt or wool. This water in the insulating material also increases its weight so that the movements of the car in service tears the insulation away from its moorings, causing the insulation to sag or fall to the lower part of the end wall, thus destroying the insulating value of the end Wall.

The lading in the car is also frequently moved by the sudden stopping or starting of the car ,referred to above, which joins with the ice and increases the horizontal impact blow against the end wall of the car.

An object of the invention is to provide an end wall for a refrigerator car having an ice box, .which wall comprises a corrugated metallic plate "Theinvention relates to railway refrigerator positioned adjacent" the ice box with the end insulation on' the outside of the corrugatedplate and wall so that the impactblo'w of the shifting ice in the ice box ('o'r 'the ic'e 'plus'the lading) is resisted by the corrugated plate end wallbefore it reaches the insulation; whereby the insulation is protected by the corrugated end wall.

Another object of the invention is to provide means to secure the endinsulationand the end lining to the corrugated plate wall which occupies the'm'inimum horizontal space inthecar.

In'the drawing:

Fig. l is a fragmentary view of "a railway car equipped with my improved wall, the lower p ortion showing the exterior of the car' and the upper portion showing the corrugated'plat'e wall with the end sheathing and insulation'remove'd.

Fig. 2 is a vertical section of the end wall of the car."

Fig; 3 is a'horizontal section of the end'wall of thecar. C q

' In the drawing the usual parts of the car are sh'dwn, such 'underfram'e 3 1'; end sill '2; striking casting 3; flooring i; flooring insulation 5";end plated; ceiling'l; ceiling iiisulationS; side 'plate 9'; roof'10'; corner posts 11; anande insulation 12.

The end wall 16 comprises one or more metallic plates secured to the end framing (end sill 2, end plate 6 and/or corner posts 11) provided with a plurality of corrugations 18 which are preferably parallel and terminate (20) within the plate adjacent the opposite end frame members or corner posts 11, as illustrated, or if the corrugations extend vertically they terminate within the plate adjacent the end sill 2 and end plate 6, respectively. These corrugations project oppositely from each other and nailing strips are secured to the end wall 16 Within the corrugations, some of which (22) project inwardly toward the car to which the lining 24 is secured and these nailing strips 22 are substantially the same depth as the corrugations so that the lining bears against the corrugations, as shown at 26. Other of these nailing strips (28) project outwardly from the car and the outer insulation 30 is secured to them. The ice basket 36 is supported within the car in the usual manner so as to provide a space 38 between the basket 36 and the end wall lining 24 and another space between the basket and the bulk-head, which together with the space above the bulk-head and the space below the bulk-head allow of the circulation of the air hereinbefore described. Preferably vertical braces or posts 50 are provided between the basket 36 and the end wall 16 so as to transmit the horizontal thrust of the ice from the basket to the lining 24 or the end wall 16, as the case may be.

The metallic end wall is preferably galvanized or covered with cement or some material to retard corrosion or a non-corrosive metal, such as aluminum alloy may be used, in which case it may be desirable to eliminate the lining.

In the form illustrated the corrugated end wall 16 is secured at its upper margin to an angle 54 which is fastened to the end plate 6 andits bottom margin is provided with a flange 56 secured to the underframe 1 of the car. The side vertical margins of the corrugated end wall are secured to the angles 58, which in turn, are secured to the corner posts 11 of the car. 7

The accompanying drawing illustrates 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. 1

I claim:

1. In a refrigerator car having an end frame comprising spaced apart corner posts, an end sill and an end plate; an end wall comprising a metallic plate secured to said end frame and 0 sulation secured to the metallic plate on the outside thereof, an exterior sheathing secured to the metallicplate outside of the insulation, an ice basket within the car in spaced relation to the metallic plate, and'posts between the metallic plate and the ice basket whereby the corrugated plate protects the insulation from the thrusts of shifting icein the ice basket.

2. In a refrigerator car having an end frame comprisingspaced apart corner posts, an end sill and an end plate; an end wall comprising a metallic plate secured to said end frame and formed with a plurality of corrugations, an insulation secured to the metallic plate on the outside thereof, an exterior sheathing secured to the metallic plate outside of the insulation, a

formed with a plurality of corrugations, an in-,

lining secured to the inside of the metallic plate, an ice basket within the car in spaced relation to the lining, and posts between the lining and the ice basket whereby the corrugated plate protects the insulation from the thrusts of shifting ice in the ice basket.

3. In a refrigerator car having an end frame comprising spaced apart corner posts, an end sill and an end plate; an end wall comprising a metallic plate secured to said end frame and formed with a plurality of corrugations, an insulation secured to the metallic plate on the outside thereof, an exterior sheathing secured to the metallic plate ouside of the insulation whereby the corrugated plate protects the insulation from the thrusts of a shifing cargo.

4. In a refrigerator car having an end frame comprising spaced apart corner posts, an end sill and an end plate; an end wall comprising a metallic plate secured to said end frame and formed with a plurality of corrugations, an insulation secured to the metallic plate on the outside thereof, an exterior sheathing secured to the metallic plate outside of the insulation, and a lining secured to the inside of the metallic plate whereby the corrugated plate protects the insulation from the thrusts of a shifting cargo.

'5'. In a refrigerator car having an end frame comprising spaced apart corner posts, an end sill and an end plate; an end wall comprising a metallic plate secured to said end frame and formed with a plurality of corrugations, nailing strips secured to said metallic plate between said corrugations and other nailing strips secured to said metallic plate within said corrugations, some of said nailing strips projecting inwardly of the car and other of said nailing strips projecting outwardly of the car, an insulation secured to the outwardly projecting nailing strips, an exterior sheathing secured to said outwardly projecting nailing strips, and a lining secured to said inwardly projecting nailing strips whereby the corrugated plate protects the insulation from the thrusts of a shifting cargo.

WALTER P. MURPHY.

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