US2879723A - Wall structure for refrigerator cars - Google Patents

Description

J. SVSWANN WALL STRUCTURE FOR REFRIGERATOR CARS 1 March 31, 1959 Filed Aug; 18, 1955 2 Sheets-Sheet l INVENToR. Jamef/JQU/Z,

BY A

llt lillkctv March 31, 1959 J. s. SWANNy WALL STRUCTURE FOR REFR GERATOR CARS 2 Sheets-Sheet 2 Filed Aug. 18, 1955 IN VEN TOR. Jam/e5 51m/@7272, BY

WALL STRUCTURE FOR REFRIGERATOR CARS 'James S. Swann, Homewood, Ill.assignor to Standard Railway Equipment Manufacturing Company, Chica. go, Ill., a corporation of Delaware AApplication August 18, 1955, Serial No. 529,268

2 Claims. (Cl. 10S-409) This invention relates to railway refrigerator cars and has special reference to the structure of the walls of said cars.

Some refrigerator cars are double walled, that is, they are provided with a side plate, side sill, side wallposts extending therebetween and side sheathing secured to Isaid side posts, which constitute the outer 'wall of the car. Spaced inwardly from this outer wall is an inner wall, which consists of an inner side plate, an inner side sill, spaced inner side posts extending therebetween, and side wall lining secured to saidinner posts. Between these inner and outer walls is'installed blanket insulation, secured in place in any acceptable manner.

In the so-called top bunker refrigerator cars, the inner "wall is constructed to provide vertical flues between the l inner posts so that air can circulate by convection currents from the top of the car to the bottom thereof,

`'through said iiues.

It is an object of thepresent invention to provide a novel form of extruded metallic inner side post to reduce the weight of the car and formed in a manner to facilitate *the installation of the flue sheets.

. `It is another object of the invention to form the flue i'slieets -so that they may be sprung into place along their vertical side marginal edges into grooves formed in said posts, along their upper horizontal margin into another groove and fastened along their lower horizontal margin to a car post.

It is a further object of the invention to provide a flue sheet that is easily assembled.

Further objects and advantages of this invention will become evident as the description proceeds and from an examination of the accompanying drawing which illustrates several embodiments of the invention and in which similar numerals refer to similar parts throughout the several views.

In the drawings:

Figure 1 is a partial transverse section of a refrigerator car embodying the invention.

Figure 2 is a section on line 2-2 of Figure 1.

Figure 3 is a broken perspective view of the embodiment shown in Figures 1 and 2.

Figure 4 is a perspective view of a modified form of the invention.

Figure 5 is a horizontal section through the inner wall of the modification shown in Figure 4.

The general parts of the refrigerator car shown are the roof 12, side plate 13, outer wall sheathing 14, side sill 15, spaced wall posts 16, spacer block 17, inner side sill 18, inner side plate 19, inner side post 40, ue sheets 21, lining 22, forarninous floor rack 23, insulated oor 24, and space 25 between the floor rack 23 and oor 24. A hatch 11 is provided through the insulated roof 12 and a ceiling 26 is provided which extends between the inner side plates 19, said hatch 11 extending through said ceiling.

Adjacent the ceiling 26 and inner side wall is a refrigerant container 27 having an opening 28 through the p ICC 'vtop-thereofregistering with the hatch 1.1 vthrough which it may be iced. A drip pan 29 extends from thetoplo'f the lining 22 under the container 27 in slightlyspaced Aceiling 26 about the lcontainer 2 7 to ues '30 and downwardly therethrough to space 25 and thence upwardly through the foraminous'rack 23 to the lading compart ment 31 where the cycle is repeated. l

A horizontally disposed clip 35 is secured tothe inner sider plate 19, the lower margin of said clip being offset suiciently to allow the upper margin 36Tof the ue sheets to-be inserted between said offset margin and the inner side plate, as clearly shown in Figure 1. The side margins 39-39 ofthe flue sheet are held by posts 40.

Referring now to Figure 2, the extruded inner yside post 40 is a modified H-beam section, theweb `41iof which is thickened somewhat as at 42 adjacent one flange 43 which is narrower than the other flange 44. The opposite longitudinal side edges of ange 43 a'refp'rovided `with grooves 47 into which thevertical side margins the llue area 30. The upper margin 36 and side margins 39-39 of each flue'isheet are in the form of vlateral anges occurring substantially in the same plane, whereas the lowermargin 51 projects yinwardly and downwardly for attachmentiasby bolts 54, to thesimilarly inclined tiange 52 of the gutter 53 along the side margin of the car floor.

In installing the liue sheets, the sides of the pan are compressed until the vertical margins 39-39 may enter the grooves 47 in anges 43 of adjacent posts 40, and then the liue sheet is slid upwardly until the upper horizontal margin 36 extends under the clip 35, when the bolts 54 are applied, and the ue sheet is thus securely held in place.

The car lining 22 is usually of plywood and is secured to the ilanges 43 of the spaced inner posts 40. The lower edge of said lining terminates approximately on a horizontal plane with the foraminous rack 23. The vertical edges of the lining meet over an inner post ange 43, and are formed with a shiplap joint as shown in Figure 2. The face of flange 43 is provided with a central row of spaced holes which extend into the thickened portion 42 of web 41 so that self tapping-screws 59 may be applied.

In the alternative form of the invention, shown in Figures 4 and 5, a vertical post 70 is mounted between the inner side plate 19 and inner side sill 18 of a railway car. The vertical post is provided with vertical grooves along opposite sides for holding the side marginal edges of llue sheets 71.

The vertical -post has a flange 73, as more clearly shown in Figure 5, provided with grooves 74 in the opposite longitudinal side edges. An outer part 75 and an inner part 76 is formed at eachside edge of the ange 73 by the grooves 74. The inner part 76 is of a narrower width than the outer part 75 so as to allow easier insertion of the ilue sheets in the grooves from the inside.

A web 78 supports flange 73 adjacent an outer ange 80 of the vertical post 70. In this construction the ue sheets do not have the pan shape constructionas the embodiment shown in Figures 1 to 3.

An inner ange 81 is mounted on the web 78 opposite outer ange 80. As shown in the drawing, outer ange .80extends to'one side, while inner angev81 extends `thegrooves 74 in ilange 73, and then the ne sheetnis slid upwardly until the upper horizontal marginal vedge 90 contacts the inner side plate 19.

` yA block 91 is inserted under the lower marginal ,edge of the ue sheet resting on inner side sill 18. A drain vboard 92 may be inserted above block 91 and under the marginal edge 94 of the ue sheets 71 and extended over the inclined ange 95 of a gutter 93.

The car lining 22 of plywood is secured to inner flanges 81 of the spaced inner posts 70. The vertical edges of the lining meet over the inner post 70 andare formed with a shiplap joint, as shown in Figure 5. The face of ange 81 is provided with a row of spaced holes which extend into the thickened portion 82 of web 78 so, that self-tapping screws 59 may be applied.

In the drawing and specification, there have been set forth several embodiments of the invention, and although specificl terms are employed, they are used in a generic and descriptive sense only and not for purposes of lmitation. Changes in form and in the proportion of parts, as well as the substitution of equivalents are contemplated, as circumstances may suggest or render expedient, without departing from-the spirit or scopeof this invention as Afurther defined in the following claims.

Also it will be noted that being extruded, the inner post may be formed to provide the required strength in accordance with the kind of metal used.

I claim: 1. In a refrigerator car wall having an inner side sill and inner side plate, vertical posts extending between said sill and plate andl connected at their ends thereto, said posts having a web supporting an inner flange normal to and extending equally on opposite sides of said web, said web being thickened adjae'ent said inner ange, a groove along each vertical longitudinal edge of said inner flange, ue sheets between said vertical posts, each flue sheet having a generally pan shape body portion with side marginal edges compressed so as to enter said grooves of said innerlange and held therein by their inherent resiliency, and lining secured to the inner face of said anges by fastening means` extending through said lining and into the thickened portion of said web.

2. In a refrigerator car wall having an inner side vsill and inner side plate, spacedvvertical posts extending between said sill and plate having a web supporting aninner flange normal to and extending equally on opposite sides of said web, a groove along each vertical longitudinal edge of said inner ange, said web being thickened adjacent said` liange, flue sheets extending between said vertical posts, said tlue sheets having a body portion with side and top marginal edges in the same plane, said side marginal edges being compressible so as to enter said grooves of said inner flange and be held therein by their inherent resiliency, a clip member secured tosaidl inner side plate for holding said top marginal edge, and lining secured to the inner face of said ange by fastening means extending through said lining and into the thickened portion of said web.

References Cited in the tile of this patent may

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