USRE7998E - Improvement in car-roofs - Google Patents

Description

J;. 0. WANDS. Oar-Roof.

Reissued Dec. I8, 1877;

ATTEST:

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STATEs PATENT fOEEIcE.

JOHN G. WANDS, 0 NASHVILLE, TENNESSEE.

1, IIMVPROVEMENTEIIN cAR-Roo F's;

Specification forming part of Letters Patent Rb, 136,569, dated March 4, 1873; Reissue No. 5,515, dated July 29,

' 1873 Reissue No. 7,998, dated Decemberl8, 1877; application filed October 9, 1877.

To an whom it may concern Be it. known that I, JonN '0. WAN'DS, of Nashville, in the county of Davidson and State of Tennessee, have invented a new and'useful Improvement inGar-Roofs, of which the following is a full, clear, and exact description, reference being had to the annexed drawing, making a part of this specification, in which Figure 1 is a plan, partly broken away, of a car-roof containing the present improvement; Fig. 2, a transverse vertical section Fig. 3, a side elevation ofa portion of the roof; Fig. 4, a longitudinal vertical section, and Fig. 5 a detail.

Similar letters refer to similar parts. Bymeans of the present improvementa light, strong, durable car-roof is obtained.

Referring. to the drawings, A A represent the rafters of the roof. They extend across the car, resting in or upon the wall-plates W NV, and they are constructed to sustain an angular roof, and for that purpose are made with angular upper surfaces, as shown. They are also mortised or grooved at a a, to receive the purlins B B B, which extend from end to end of the car, resting in the rafters, as shown. C 0 represent the frieze-boards. They are fastened to the rafters A A at each end of the car, for whichpurpose the end rafters are made longer than the others. The sides J J of the car are secured between the wall-plates W W and the frieze-boards O O, and the ends of the car are held bet een two rafters that at each end of the roof are arranged just far enough apart to receive the tops of the end walls. A groove, 0, is formed in the lower edge of the frieze-boards O O, to provide for diverting from the sides of the car the water that falls from the roof. The frieze-boards O (J, the side walls J -J and the wall-plates are suitably fastened together, and preferably by means of screws, as the latter serve to render the united parts readily detachable. E E represent bands of iron stretched across the purlins B B, and secured to the wall-plate W-VV. They serve, with the purlins, to support the metallic sheets hereinafter described. D D D represent alayer or covering of metallic sheets, preferably zinc. This covering is formed of three sheets, extending longitudinally with the car and upon the frame above described; or, if preferred,

they may be placed upon a' lining of boards.

and laps over upon "each of the sheets D D,

as shown in Fig. 1. The lastnamed sheets, in turn, and respectively, project a short distance beyond the frieze-boards, to form eaves for the roof. The ends of these sheets D D D are secured by bands or looks, such as are ordinarily used in the manufacture of tin or zinc ware. F represents what I call the central top purlin. Its bottom is grooved or beveled, to fit the crown of the central sheet D, and it has on each side a groove or rabbet, y 51 adapted to receive the upper ends of the roof-boards.

It will be seen that this last-named purlin is adaptedforuse either upon a metal or wooden roof.

By means of bolts or screws 11. h the purlins F and B are fastened together, clamping and fastening the intermediate boards G G and sheet D. By this means, also, the purlin F is made removable. H represents the runningboard, for the use of brakemen. It is suitably fastened to the purlin F, and preferably by screws. G G represent the roof-boards, preferably tongued and grooved together. Their upper ends are secured in the side grooves y y of the purlin F, while their lower ends are secured to the frieze-boards O O by screws or nails g g, which also serve to hold in position the longitudinal bands k 70. Grooves f f are formed in the under side of boards G G, re spectively, extending from end to end. They serve to carry off any water that may reach the metal covering through the-joints of the boards.

The bands E and K may sometimes be dispensed with.

I am aware that sheets of zinc have been used in the construction of car-roofs upon wooden frames. I do not therefore claim the use thereof, broadly.

I am also aware that in l1ouse-roofs a central rectangular beam without 11 anges has been used, against which the upper ends of the roofboards abut on each side, and that a cap has been placed upon said beam, and held in place and made removable by means of hooks and staples. I lay no claim to the invention of such beam or cap; but

I claim 1. The car-roof herein described, having the frame consisting of the parts A B O W, the bandsE and K, the sheetsD D, and the grooved roof-boards G G, substantially as described.

2. The combination of the purlin F, roofboards G G, and frieze-boards (l 0, constructed and arranged in a car-roof, substantially as described.

3. The combination, in a ear-roof, of a layer of flat metallic sheets and an upper layer of boards, grooved on their under side, the boards resting directly upon the sheets, substantially as described.

4. The combination, in a car-roof, of a layer of metallic sheets bearing directly upon the car-roof frame, and an upper layer of boards bearing directly upon the sheets, substantially as described.

5. A car-roof composed of a lower layer of metallic sheets and an upper layer of boards, the sheets resting upon the car-roof frame beneath,'and the boards being confined at their lower ends to the car-roof frame, and bearing immediately upon the sheets, serving or aiding to hold the latter down upon the car-frame, substantially as described.

6. In a car-roof, the combination of the 1011- gitudinal strips K K, the boards G G, the

sheets D D, and the car-frame, substantially JOHN C. WANDS.

Witnesses A. R. BROWN, G. W. DONIGAN.

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