US1156617A - Car-roof. - Google Patents

Description

W. P. MURPHY.

CAR Roof.

APPLiCATION FILED APR.|0|1915.

.f l l?. Paentved Oat. 12, i915.

z sHEUs-sneer 1.

W. P. MURPHY.'

CAR ROOF.

APPucATloN man APR. 1o. 1915.

Patented Oct. 12, 1915.

2 SHEETS-SHEET 2 STTES orion.

cercgnoor.

Patented Oct. 12, 1915.

Original application filed December 22, 1911,-Seria1 No. 667,297. Divided and this application filed April 10,1915. seri-a1 No. 20,393.

T all whom t may concern.'

Be it known that I, W'ALTER P. MURPHY, a citizen of the United States, and a resident of the city of Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Car- Roofs, of which the following is a specification. f

This invention relates tocar roofs composed of individual roof sheets which are spaced side by side and are connected by means of seam covers, and isl a division of my patent application for improvements'inl metal car roofs, Ser. No. 667,297, filed Dec.

The object ofl this invention is an improved seam or joint for connecting movably mounted roof sheets; and a further ob the same, on the line 2-2 inFig. 1; Fig. 3

is a side elevation of a portion of the roof at the eaves, showing the eaves end of a seam cover; Fig. 4 is a transversemsection through the eaves portion of the roof on the line Qf-'JZ in Fig. 1; Fig. 5 is a cross-section through a joint embodyingthe invention on the line 5-5 in Fig. 1; and Fig. 6 is a perspective view of a roof'sheet.

The invention is applicable to outside metal roofs for cars having either metal or wood frame members. The roof substructure maybe of any suitable construction. Preferably it consists of carlines 11 supported at their ends by the side plates 12 of the car, and purlins 13 and ridge piece 10 arranged lengthwise of the car and supported by the carlines. The roof sheets 1 4. are made from corrugated metal sheets, and are formed with upstanding side flanges 15 which i are provided with inturned lips 16 at the top.

The corrugations are flattened yout at the eaves, and the eaves ends of the roof sheets are turned down to form eaves flanges- 17.

positions parallel to the` carlines.

rIfhe roof sheets 'are dished between their side fianges, that is, the marginal portions 18 of the vrpof sheets adjacent to the flanges 15 are inclined upwardly, and are raised above the substructure where they `meet the side flanges. `Inverted channel-shaped seam covers 19 stiaddle the side'flanges of adjacent roof sheets, the inside width of the seam covers being` suiiicient to leave a space between each side wall 20 thereof and the edge of the adjacent inturned lip 16. The side walls of the seam covers slope outwardly, and have lateral outturned base flanges 21 along their lower edges. The lateral base fianges 21 of the seam covers arevdisposed at a slight slant, conforming to the slant of j the marginal portions'll of the roof sheets, and are arranged to rest "or bear flatwise on the roof sheets between the 'corrugations and side flanges of the sheets.

In the preferred form ofthe invention, the lateral base fiaiiges 21 of the seam covers are pressed down on the slanting marginal portie us 18 ofthe roof sheets to form watertight resilient flexible joints. Spacing the slanting marginal. or dished portions of the roof sheets above the substructure eliminates any trouble due to the seam covers pinching the roof sheets down on the substructure and preventing the slight shifting ofthe roof sheets to accommodate themselves to distortion of the substructure. Y Moreover, the

raised marginal portions of the roof sheets upon which the lateral base fianges of the seam covers rest are above the general water `level of the roof sheets,.and hence there is no liability of water seeping under the seam covers b v capillarity and rusting'out the roof sheets near their side flanges. There is suiiicient spring in the seam cover flanges and in the upwardly inclined marginal portions of thel roof sheets to keep them in close contact at all'times, and to maintain the tightness of the joint even though the roof sheets may become displaced from their normal positions. Moreover, the pressure of the seam covers on the inclined marginal portions of the sheets has a tendency to maintain vthe sheets in their normal This shape. and arrangement of seam covers and roof sheets not only providesr a watertight seam or joint between adjacent roof sheets well adapted to preventfv the entering of water into the car, and one' in which water of the roof sheets, and are spaced away from the fascia's sufciently to, allow slight freedom of movement of the corners of the Vroof Sheets c'rosswise of the roof. rlhe downvturnedenels4 of the seam covers are loosely se- Acured to the -sideof the car by bolts 23 y which also attach the fascias 'to the side i plates. The bolts 23 pass through holes in the ends of the seam covers larger than the boltsl and bushings 24 are placed on the ends ofthe bolts between the fastening nuts'25 and fascia board 26 for the purpose of' spacing the nuts from the fascia and allowing freedom of movement ofthe seam coversv crosswise of the car.

The ridge-ends of the roof sheets rest upon the ridge piece 10 and have upstanding flanges. 27 which terminate in inturned lips 28 along theirA top edges. The ridge covers 29 straddle and cover the ridge flanges of each pair of oppositely arranged sheets.

Corner caps 30 arearranged over the ridge .ends of the seam covers 19 and ends of the ridge covers 29, and the running board sadvdles 31j are larranged on top of the corner caps and bolted to the ridge piece thereby securing the corner caps and lseam covers in position at the ridge. l'

The `invention is not restricted to the preoise forms and arrangements ofparts shown and described.

What I claim is:

1. An allv steel car roof comprising side plates, carlines having vertical stiifening members, purlins attached to the bottoms`of said carlines with their tops below the tops 4of the carlines, a ridge piece secured to the carlines, and dished flangedroof sheets arranged on said purlins between the carlines with their margins spaced from the latter,

- said roof sheets being vsupported intermediate their side margins on said side plates,

"purlinsand ridge piece, and seam covers straddling said carlines and roof sheet ianges and having downturned side walls resting flatwise on the .dished portions of said roof sheets.

2. A car roof comprising side plates, carlines, purlins and a ridge piece, and flanged roof sheets dished upwardly at their side margins arranged between the carlines with their flanges spaced from'the latter, said roof sheets supported on said side plates, purlins and ridge piece and non-rigidly attached to ythe car by resilientmeans cooperating with their dished margins within their flanges.

3. An all steel car roof comprising carlines, purlins, and ridge piece, dished roof sheets having integral side and ridge flanges non-rigidly supported on said purlins and ridge piece between the carlines, and retaining strips having flanged portions bearing' upon the dished portions of said roof sheets substantially as described. f

4. A car roofcoinprising a substructure, metal roof sheets thereon extending from the eaves toward the ridge, metal seam covers overlying the adjacent side margins of said sheets and means for securing lthesame to the roof substructure, said sheetsbeing provided with dished side marginal portions and upstanding` flanges along their side general plane of the roof sheets and overlapping the carlines and spaced therefrom, and seamcovers spanningsaid edge flanges 'and having edge portions cooperating with said raised margins for holding said roof sheets 1n position.

6. A car roof .having 'a substructure, roof sheets suppprted on sai substructure and having tipi-tending edge f anges, the margins of a roo-J;A sheet adjacent t'o its upstanding flanges haring an upward slope away from the body Vportion of said roof sheet, seam covers forthe joints' between adjacentroof sheets, the edges of said seam covers having a downward and outward slope conforming to the slope of the margins of said `roof sheets, and means kfor clamping said seam covers down on said substructure f whereby said roof sheets are held in position thereon.

7. In a car roof, roof sheets movably arranged with their side margins contiguous and extending transversely with lrespect to the car, said sidev marginal portions of the roof sheets being formed with upstanding flanges, the edge portions of the roof sheets sloping up to thebases of these flanges, said edge portions being space'd above the roof substructure and seam covers having slanting sides and lateral base flanges at an angle thereto conforming to the slope of the edge portions of the roof sheets overlapping the margins of adjacent sheets and secured to the roof substructure.

8. In a car roof, longitudinally corrugated roof sheets arranged side by side with the corrugations extending transversely with respect to the car, said roof sheets having upwardly sloping side edges terminating in upmattei? standing flanges, seam covers spanning said upstanding flanges, said seam covers having downwardly extending sides terminating in lateral flanges projecting at an angle thereto, said lateral flanges resting flatwise on the sloping side edges of the roof sheets hetween the corrugations and the upstanding side flanges thereof.

, 9. In a car roof, longitudinally corrugated roof sheets movably arranged side by side and spaced apart with the corrugations eX- tending transversely with respect to the car, said roof sheets having upwardly sloping side edges terminating in upstanding flanges, seam'covers spanning the spaces between adjacent roof sheets and covering said upstanding flanges, said seam covers having downwardly extending sides` spaced from said upstanding flanges and terminating i'n lateral flanges projecting at an angle thereto, said lateral flanges resting flatwise on the sloping side edges of the roof sheets between the corrugations and the upstanding side flanges thereof.

10. A seam construction for a car roof having movableroofsheets, said seam construction comprisingv a seam cover of inverted channel shape provided with outwardly projecting flangesalong the lower edg'es- '19 its side walls, in combination with the side margins of the roof sheets, said side margins being raised to a height above the supporting substructure and provided with edge flanges projecting up within said seamA covers and spaced from the side .walls thereof, the adjacent raised margins contacting flatwise with the under surface of the out- Copies of this patent may be obtained for `wardly projecting flanges of the seam covers, whereby a tight sliding joint ismaintained between said seam covers and roof sheets above the general level of the main drainage portion of said sheets.

.11. A.V car roof comprising metal roof sheets arranged side by side with a clear space between them, said roof sheets having their side margins raised above the plane of support of the roof sheets and clear of the supporting substructure, seam covers bridging the spaces between said roof sheets and having lateral flanges resting llatwise on said raised margins, said lateral flanges terminating short of the junctions of the raised vsaid upstanding flanges of the roof sheets and themselves having marginal flanges that bear flatwise against the raised marginal portions of the roof sheets.

v Signed at St. Louis, Missouri, this 5thl day of April, 1915.

I WALTER P. MURPHY.

ve cents each, by addressing the Commissioner of Patents, Washington, D. C.

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