US1030602A - Car-roof. - Google Patents

Description

W.- P. MURPHY.

CAR ROOF.

APPLICATION FILED SEPT. 28, 1911.

Patented June 25, 1912.

W. P. MURPHY.

GAR ROOF. APPLICATION FILED SEPTv 28, 1911.

1,030,602, Patented June 25, 1912.

4 SHEETS-SHEET 2.

W. P. MURPHY.

CAR ROOF.

APPLICATION TILED SEPT. 28; 1911 Patented June 25, 1912.

4 SHEETS-SHEET 3.

lqz'inaisqa:

W. P. MURPHY.

GAR ROOF.

APPLICATION FILED SEPT. 28, 1911.

Patented June 25, 1912.

4 SHEETS-SHEET 4;

' z lz'zrzesaesv a fa WALTER P. Mom- Y, or CHICAGO, ILLINOIS.

Specification of Letters Patent.

Patented June 25, 1912.

Application filed September 28, 1911. Serial No. 651,717.

To all whom it may concern:

Be it known that I, VALTER P. MUnPHY, 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.

My invention relates to the construction of roofs for freight cars, and its object is to provide a rigid substructure upon which the roofcovering may be secured, the particular objects of the invention being to reduce the vertical thickness of the roof, resulting either in increased head room Within the car or in a less total height of the top of the car above the rail, to strengthen the roof substructure against deformation due to racking and weaving of the car, and to produce a cheap construction readilj assembled and easily repaired.

vReferring to the accompanying drawings tormin a part of this specification, in which like characters represent like arts throughout the several views: Figure is a top plan view of a art of acar roof with the roof sheets the roof substructure; Fig. 2 is an end elevation of a portion of the upper corner of a car showing my improved roof partly in sec tion on the line 22.0f Fig. 1; Fi 3 is a top plan view of one of the forms 0 connection between the carlines and purlins in my improved roof Fig. 4 is a sideel'evation of the same showing the carline in section; Fig. 5 isa transverse section through the purlins and filler block of the form illus tratedin Figs. 3 and 4; Fig. 6 is a longitudiual sect-ion through the end of the purlin; Fig.7 is a top plan view of the joint between the carlines and another form of purlin' Fig. 8 is a side elevation of the same showing the carline in section; Fig. 9 is a transverse section through the purlins shown in Figs. 7 and 8; and Fig. 10 is a longitudinal section through the end of the same; 11 is a top plan view of the end portion of a modified form of purlin, showing the (nut between two purlins and a carline; lg. 12 IS a side elevation of the joint shown in 11, showing the carline in section; and 1g. 13.11; a side elevation of the joint bet-ween the ends of a modified form of purlin and a carline, showing the carline in sechon.

' Referring to Fi 's. 1 and 2 of the-draw lugs, my improve roof comprises carlines artly broken away to show 1O spaced longitudinally from end to end of the car and spanning the car from caves to caves, the (lids being securely attached to the side plates ll. Purlins .12, parallel with the slide plates, are arranged lengthwise of the car bridging the spaces between the carlincs. to which hey are securely fastened, and are uniformly spaced across the car from caves to caves. Roof sheets H exteinling from caves to caves of the car are sup ported on Ithe purlins and side plates bc tween the upstanding webs 15 of the carlines, and are turned down at the ends into grooves 17 in the fascia: 18 along the sid s of the car. Seam capslG are arranged over the vertical webs 15 of the carlines to cover the joints between adjaceut'roof sheets. These sea-1n caps are secured at the ends by hood clips 19 fastened to the caves of the car.

In the fonn of my invent-ion illustrated in Figs. 1 to 6, inclusive, the purlins are channel shaped, and arranged with the open side uppermost, and fillerblocks or strips 13 are placed in the channels to serve as intcrmcdiate supports for the roof sheets. These filler blocks serve as nailing strips in case wooden sheathing is used beneath the roof plates. and where no wood en sheathing is used they serve to space the roof plates above the metal purlins to lessen frict'hm, to allow ven tilation, and to decrease the height of the joints. between the roof sheets at the carlines. As shown in Figs. 3 to i the purlins are of steel or iron plate pressed up into the form of a channel with marginal flanges to receive the wooden filler blocks 13 for the greater portion of their length, and are flat at the ends. the extremities of the Hat portions being bentup nearly at right angles with the plane of the purlins to abut against the vertical webs of the carlines. The bent up por- (ions 22 ()f fltljilttllt p'urlins are arranged to abut in line with each other at opposite sides of the webs 15 ot' the carlincs, and holes are drilled-or punched through all three mcmbers to receive bolts 23 for securing them rigidly together. These bolts 23 are spaced as far apart as is practicable in order to brace the joint as much'a's possible against stresses tending to distort the roof substructure diagonally. The flattening out of the end portions of the purlins produces a or lin having a considerably wider end t an body portion, and results in a. much stifier joint :1

which he ends are not so widened out.

i of the flanged channel-sectionpurlin 28 is placed underneath and the channel is merged into the flange 24-at the ends, the extremities 25; of which are bent up to abut against the vertical webs l5 of'the carlines, adjacent purlins being secured together and to the carlines by the bolts 26. This arrangement leaves a space between the ends of the struck up portions of the purlins and the vertical flanges of the carlines below the top line of the purlins, which space is des'irable with certain types of roof sheets in order to accommodate corrugations adjacent the side margins, as shown and described in an application filed by me on January 23,

i I 1911. In Figs. 11 and 12 the extremities 24 of the purlins are struck up as at 25 and then rebent as at 25 to form supporting flanges for roof sheets 14, the top faces' of said rebent portions being in the same plane as the crowns of the channeled body portions of the purlins. The purlin 12,

- shown in Figs. 3 to 6, inclusive, maybe provided with a rebent flange 22" at each end in the plane .of the flanges 20, the rebent flanges 22* forming with the flanges 20 supports for the roof sheets 14. My improved purlin is also very well adapted to wood or metal lined roofs, in which wood sheathing or sheet metal plates or pans are arranged below the roof sheets in the spaces between the purlins and carlines, and supported on the side flanges thereof. The ecuring bolts 23,26, for the purlins do not interfere with the corners of the lining panels, as would be the 0 se; were they arrangedin'the horizontal an'ges of the carlines instead of in the vertical Webs thereof. The purlin 28 has the additional advantage of providing side flanges for supporting the lining which are substantiallyfieven with the horizontal flanges of the carlines.

While I. have illustrated and described my invention in detail, I do not wishto be understood as restricting myself to the precise'forms and arrangements which I have .65 between said carlines, the channel and flanges being merged into the same plane at the ends of the respective purlins and bent 'up against the vertical webs of the carlines, and fastening means passed through said bent up ends of the purlins and webs of the carlines to secure them together.

2. In a car roof, the combination with carlines having vertical webs, of metal purlins of flanged channel section extending between said carlines, the channel and flanges being spread out into a plane section at either end of the respective purlins and bent up against the vertical webs of the carlines, and bolts passed through said laterally spaced bent up ends of the purlins and the-webs of the carlines to secure said purlins and carlines together, said bolts being spaced apart, thereby securing a bracing effect.

3. In acar roof, the combination with lins of flanged channel section adapted tov receive a wooden filler extending between said carlines, the channel and flanges being merged into the same plane at the ends of the respective urlins and bent up against the verticalweibs of the carlines, and fastening means passed through said bent up ends of the purlins and webs of the carlines to secure them together.

'- 4. In a car roof, the combination with carlines having vertical webs, of metal purlins of flanged channel'section .adapted to receive a wooden filler extending between said carlines, the channel and flanges being merged into the same plane at the ends of the respective purlins and bent up against the vertical webs of the carlines, filler strips positioned in the channel section of said purlins, the upper surface of said filler strips lying above the flanges of the purlins section of the purlins merging into wide spreading-plane sections at the ends extending laterally beyond the body lines of the purlin and terminating in transverse flanges, and means for securing said transverse flanges to the vertical webs of the carlines.

6. A car roof comprising spaced carlines provided with vertical webs, metal purlins having roof sheet supporting portions extending. between the carlines, transverse flanges terminating in rebent supporting portions at the ends of said purlins, and means for securing said transverse flanges to the vertical webs of the carlines.

metal purliris having lateral flanges extending between the carlines and dividing the spaces between the carlines into panels adapted to receive a lining to be supported by said lateral flanges, transverse flanges:

at the ends of said purlins, and means for securing said transverse flanges to the vertical Webs of the carlines.

8. A sheet metal purlin pressed into a channel section, the end portions of said purlin being merged into a plane section, said plane section being struck up and rebent to form terminal flanges in the plane of the top of the channel-section.

9. A sheet metal. purlin pressed into a channel section and provided with marginal flanges, said marginal flanges and channel section merging into a plane section at the end ofthe purlin, and terminating in ;truck up flanges having rebent extremities.

10. A car roof comprising carlines provided with vertical webs and lateral flanges along the bottom edges thereof, metal purlins of flanged channel section extending between the carlines and resting at the ends on said lateral flanges, the flanged channel section of the purlins merging into plane sections at the ends and terminating in struck up and rebent flanges, and means for securing said struck up flanges to the vertical webs of the carlines. 11. A car roof comprising carlines provided with vertical webs and lateral flanges along-the bottom edges thereof, metal purlins of flanged channel section extending between the carlines and resting at the ends on said lateral flanges, the flanged channel sect-ion of the purhns merging into plane sections at the ends and terminating in struck up and rebent flanges, and means for securing said struck up flanges to the vertical webs of the carlines, said rebent end flanges being in the plane of the tops of the urlins.

Signed at St. Louis, Missouri this 23rd day of September, 1911.

WALTER P. MURPHY.

Witnesses:

G. A. PENNINGTON,

PAULINE AMBERG.

Copies of this patent may be obtained for five centseach, by addressing the "Commissioner of Patents,

- Washington, D. 0.

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