US933143A - Car-roof. - Google Patents

Description

B. S. WARREN & S. HERBERT.

GAR ROOF.

APPLICATION FILED JUNE 9, 1906.

Patented Sept. 7, 1909.

2 SHEETSSHEET 1.

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GAR ROOF.

APPLICATION FILED JUNE 9, 1906..

Patented Sept. 7; 1909.

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' AMUEL -HEH5E/?7'- l/V/T/YESSES UNITED STATES PATENT OFFICE.

BENJAMIN SJWARREN AND SAMUEL HERBERT, OF DETROIT, MICHIGAN, ASSIGNORS TO HUTCHINS CAR ROOFING COMPANY, 011 DETROIT, MICHIGAN,'A CORPORATION OF MICHIGAN.

CAR-ROOF.

933,143. Specification of Letters t- Patented Sept. '7, 1909. Application filed June 9, 1906. Serial No. 320,911.

To all whom it may comem: desirable at the peak to have an upstand- Be it known that we, BENJAMIN S. VVAR- HEN and SAMUEL HERBERT, citizens of the United States of America, residing at Detroit, in the county of Wayne and State of Michigan, have invented certain new and useful Improvements in Car-Roofs, of which the following is a specification, reference being had therein to the accompanying drawmgs. 1

The invention relates to new and useful improvements in carroofs, and consists'particularly in .the construction of the sheets having upturned flanges at the side and peak so asto make a substantially pan-shaped corner with corrugations or bends in one or both of the flanges of such a nature as not to break the metal, or bend it at such a sharp angle as to break throu h the galvanizing or 'tinning usually app ied thereto; and further in the construction of such a roof sheet and such a corner construction, combined with involute flanges at the sides; and further in the construction, arrangement and combination of the various parts as more fully hereinafter described and particularly pointed out in the claim.

In the 61:3. Figure 1 is a perspective view of a sheet or a metal roof as used on cars, and embodying our improvementv as applied to a sheet having the involute side flanges; Figs. 2 and 3 are perspective views of the corner of the sheet; 4 is a plan view of the corner; Fig. 5 is a section through a car roof showing portions of two sheets on opposite sides, as in position on the car; Fig. 6 is 2. Ian view of the blank from which the spe estructure shown in Fig. 1 is preferablyshaped; Fig. 7 is a plan view of such a corner construction applied to a sheet with vertical upstanding flanges on the side and peak; Fig. 8 is a section through such sheet; Fig. 9 is a plan similar to Fi 7 showing the corrugations or bends appiied in both the side and the peak flange; and Fig. 10 is a perspective view of the old and weil known e of corner construction employed in making pans or pan-shaped sheets for metal roofs.

In the present state ofthe art sheet metal roofs are made of sheets which extend from the peak to the eaves of the car, and are connected to ther at their sides by various kinds of oints or by various means; It is ing flange, so that in a storm the rain driven by the wind will not drive laterally acrossthe ends of thesheet, and on the roof between the edges of the sheet at the peak. It has been more or less customary to make such an upstanding flange at the peak, and in doing so a very common form of corner construction has been employed (such as shown in Fig. 10), in which the lap or fold of metal projecting after the flanges have been bent up and, as shown at A (Fig. 10), is bent around parallel to. and pressed'against one of the flanges on the sheet. This construction is objectionable, or any other construction is objectionable, in which sharp or acute bends are'required in the metal, because such bends will crack or break the galvanizing or tinning usually applied to such sheets, and they will thus quickly rust at this oint and cause a leak at the peak, which 1s the worst place -to have the leak, as the water will run down beneath the plates and thus rot out the whole width of the roof. Our invention is intended to make such pan-shaped corner in the sheet and yet do it with any desired form of side flange without the necessity of sharp bends in the metal, which will break the galvanizing or tinning.

A represents a sheet of metal which is desired to be shaped into a roof sheet. In Fig. 6 we have shown the blank from whichis preferably formed the sheet shown in Fig. 1,

the flanges a at the sides being bent up into the involute upstanding portions B, the flap I) being bent downward to form the portion C, which is at the eaves of the car and forms the securing flange at the eaves. The portion o'is bent up to form the peak flange D. In bending this up we do it with dies or tools in such a way as to form the curved corner E, and also bend the flange D, as for instance at F, witha gradual bend, i. aforming a curve or corrugation which takes up the excess of metal without the necessity of forming any sharp angles or bends therein, and thus without any breaking of the galvanizing or tinning hovering the sheet.

In Fig. 8 we have shown a section through a sheet in which the side flange, instead ofbeing an involute flangeas shown at B, is simply an upstanding vertical flange, G, and

in Fig. 7 we have shown the same curved corner E and the same corrugation or bend F, as shown in Figs." 1, 2 and 3, only applied to a sheet made with the side flange, as in Fig. 8. a

In Fig. 9 we have shown a curved corner E, but we have shown corrugations H I in both the side flange G and the peak flange D. In this case neither the corrugation H or I need be as deep as the single corru ation F, s the corrugation being simply su cient to take up the excess'of metal which in the or dinary construction goes into the flap A".

\Vith this construction We are enabled to make a sheet pan-shaped at the peak and tinuous flan sides thereo open crimps therein adjacent the corners of the sheet.

without any sharp bends, which will break the galvanizing and yet obtain all the advantages of pre enting a leak by the driving rains at this point.

,What we claim as our invention is,

In a car roof, a metal sheet having a con- 20 e extending around the top and said flange being provided with In testimony whereof we aflix our signa- 25' tures in presence of two witnesses.

BENJAMIN s. WARREN. SAMUEL HERBER'r.

Witnesses CARLYLE E. LA'r'rA, V. D. THOMPSON.

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