Dec- 10, 1946- A. FLO’CONNOR - 2,412,233 GAR ROOF STRUCTURE ' ' Filed March 5, 1945 1 ' ‘1.3 2,412,283 Patented Dec. 10, 1946 . 4' STATES? Arthur. Q’Connqn Chicago... Ill-.1 assigns): to. Union Asbestos- & Rubber - coarser’; Marrow: tion or. Illinois, i : Application March 5, 1945", Serial No.;5$1',0271 5Claims. (c1. meager» .1,‘ , _ ' This invention relatesLtocar roof structure and ' > ' . Metal railroad. car roofs. are usually constructed OJ‘; adjoining roof, sheets spanning the side plates , ,2‘ extending- ?ang'es overlying the side plates. The adj acent, ?anges IA! of the roof; sheets. are connected ‘by means or channel shaped seam moreparticularly-to metal roofssfor railroad cars, or the, like. I portions which are bent over to form downwardly. Or covers. I5 which-?t; over the pairs of ?angesand. secure. ‘them together. Rivets, or like fasteningsv of the. car and connected by seams. extending t6 mayrextend'. through the. covers’ I15; and the across-the car. In roofsw of'this type agreat deal flanges 1:4 to provide a, permanent. joint. of di?ic'ulty has been encountered in sealing the covers. 115-116, formed with horizontal ?ange POI‘: joints between adjacent roofeshee-ts- at the eaves tions; 'I'I; overlying. .the adjacent; portions of» the portion of the roofand it: isone of the objects of the. present. invention to. provide a roof structure Since the ?anges I54‘ terminate shorti orv the. inwhich thejoints are tightly. sealed atthe eaves. endsoftheroof sheets; the joints. between Another object. is, to. ‘provide a'. car. roof- struc-. jacent roof sheets atgthe eaves portion of thereof ture in which the joints betweenthe roof sheets. is formedgby ‘the plain- edges of'the sheets which 15 at theea'ves'of the .carrare formed'by abutting may or may not be in contact. In order to seal the sheet edges and are sealed by yielding sealing the joint between these abutting edges, the sheets material lying between the roof sheets and the are offset adjacent their ends as indicated at I9 side plates. to provide a space between the arcuately curved Still another object is to provide a car roof structure in which the edge portions of the roof 20 portions I2 of the side plates I0 and the roof sheets. The ?anges I‘! of the seam covers are sheets adjacent the joints therebetween are offset similarly offset as indicated at 20 to ?t over the to provide a space for sealing material. offset portions I9 of the roof sheets. ‘ The above and other objects and advantages The space provided by the offset portions I9 is of the invention will be more readily apparent from the following description when read in con 25 ?lled with a sealing material shown at 2|. This material may be of any desired type such, for nection with the accompanying drawing, in example, as paper felt or the like saturated with which— ' asphalt to provide a non-drying, yielding, water Figure 1 is a partial top plan view of a car roof proof mass. In assembling the roof, the sealing structure; material 2| is placed between the o?set portions Figure 2 is a partial enlarged section on the I9 of the roof sheets and the side plates l0. When line 2-—2 of Figure 1; the roof sheets are riveted or otherwise fastened Figures 3 and 4 are sections on the lines 3-—3 to the side plates by means of rivets such as I8, and 4-4 respectively of Figure 2; this material, which is initially thicker than the Figure 5 is a perspective view with parts broken roof-sheets; away showing the sealing construction at the eaves portion of the roof; and _ Figure 6 is'a partial perspective view of a single roof sheet. . - . " ‘ ' depth of the offset I9, is compressed to seal tightly against the roof sheets and side plates and to ‘prevent any leakage or seepage of water between the abutting edges of the roof sheets. It will be seen that this construction can be formed and As shown, the car is provided at its opposite sides with side plates I0 of substantially 2 section 40 installed simply and inexpensively and that it will provide a permanent water tight joint between supporting the side walls II of the car. At their the roof sheet at the eavesv portion of the car upper edges the side plates are arcuately bent as where the greatest dii?culty has heretofore been indicated at I2 to form substantially horizontal ?anges extending toward the center of the car. 45 encountered. While one embodiment of the invention has The roof proper is formed by a plurality of roof been shown and described in detail, it will be sheets I3 adjoining each other at their sides and understood that this is illustrative only and is not spanning the side plates to be supported thereon. intended as a de?nition of the scope of the in The roof sheets I3 are formed of sheet metal and vention, reference being had for this purpose to v have upwardly extending ?anges I4 at their sides. 50 the appended claims. When the roof sheets are assembled, the ?anges What is claimed is: I4 of adjacent sheets abut each other to form 1. A car roof structure comprising spaced side plates, a plurality of adjoining roof sheets span joints between the sheets. In the present con- , ning the side plates, the edge portions of the roof struction, as shown, the ?anges I4 terminate short of the ends of the roof sheets leaving plain edge 55 sheets being formed to ?t snugly over the side 3 plates and being offset outwardly from the side plates adjacent the joints between adjacent yielding sealing rnaterial between the side plates ' and the offset portions of the sheets to seal the sheets, and. yielding sealing material'between the joints between the sheets at the eaves portion of side plates and said o?set portions of the sheets the roof. ' to seal the joints between the sheets at the eaves 5 4. A car roof structure comprising spaced side portion of the roof. plates arcuately curved at their upper edges, a | 2. A car roof structure comprising spaced side plates, a pluralityof adjoining root'sheets span-. ning the‘sid'e plates, theedge portions of the roof > sheets being formed to ?t snugly over the side plates and being oifset outwardly from the side plurality of adjoining roof "sheets spanning the side plateswith their edge portions curved down wardly to?t snugly over the curvededges of the 10 '__side plates, plates adjacent the joints between adjacent sheets, upstanding abutting ?anges at the sides v of the sheets, seam covers ?tting-over the abut- -l' ting ?anges and extending over the edge portions of the sheets, the seam covers being o?set to ?t over the oifset portions of the sheetsnandryield ing sealing material between the side plates and the offset portions of the sheets to seal the‘ joints ‘ the edge portions of the sheets being i ‘ o?set outwardly adjacent. the joints between ad jacent sheets, and sealing material between the side plates and the offset portions of the sheets to seal- the joints between the sheets at the eaves portion of the roof; l 5. A‘ car roof structure comprising spaced side plates arcuatelycurved at their upper edges, a plurality of adjoining roof sheets spanning, the sideplates with their edge portions curved down between the sheets at the eaves portion of the 20 wardly to ?t snugly over the curved edges of the side plates, the edgeportions of the sheets being 3. Aicariroof. structure comprising spaced side, offset outwardly, adjacent the jointsbetween ad plates,.a.p1urality of adjoining roof sheets; span jacent sheets, upstanding abutting ?anges’ at the ning the side plates, the edge portions of the roof sides of the sheets, channel shaped‘seam covers sheets being ,formed to f?t- snugly over the side v25 ?tting over the abutting‘ ?anges and curved platesand. being offset? outwardly from the side downwardly at their ends to overlie the curved plates adjacent the joints between adjacent edge portions of thesheets', theseam coversvhave sheets, upstanding abutting ?anges at the sides ingi ?anges overlying the adjacent portions i of of’ the sheets terminatingshort of the edge por-i the sheets and which are o?set at ‘the ends of the roof.~-~ »- ' ' ' ' - tions thereof,’ channel shaped seam covers ?tting 30 seam ,covers .to ?t over. the o?set portionsofsthe' over the abutting ?anges having ?anges>thereon sheets;,and sealing ‘material between the side overlying theadjacentportions of‘ the roof sheets, plates and the o?set‘portions of‘ the sheets‘ to the‘seam' covers, extending over- theedge portions seal the jointsxbetween the sheets at the-eaves ', of: the roof sheets and having their ?anges oifset portionsofxthe' roof. , ‘ to. ?t over the o?set. portions ofthe sheets, and 35 ' iARTHUR F.0’CONNOR". 7- '