Structural members and structures assembled therefrom
First Claim
1. A hollow structural member comprising a sheet metal beam formed with a generally triangular cross-sectional shape to provide a longitudinally extending peak, an inwardly extending channel with an opening at and extending along the peak, and having walls defining the sides and bottom of said channel to provide a narrow channel opening which expands beyond the opening into a wider space between the walls, and a base for securing the beam, said base lying in a plane generally parallel to and spaced from the bottom of the channel, said base being in the form of longitudinally extending outwardly directed flanges.
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Abstract
This invention is concerned with roofing structures utilizing a structural member formed from sheet metal to hollow triangular cross-section with a longitudinally extending outwardly opening narrow mouthed channel forming a peak along the member. The opposite end of the member will have outwardly projecting flanges around which may be engaged bent edges to a base plate. The channel is adapted to enable cladding sheets to have their edges engaged therein and thus provide a drip free roof.
59 Citations
9 Claims
- 1. A hollow structural member comprising a sheet metal beam formed with a generally triangular cross-sectional shape to provide a longitudinally extending peak, an inwardly extending channel with an opening at and extending along the peak, and having walls defining the sides and bottom of said channel to provide a narrow channel opening which expands beyond the opening into a wider space between the walls, and a base for securing the beam, said base lying in a plane generally parallel to and spaced from the bottom of the channel, said base being in the form of longitudinally extending outwardly directed flanges.
Specification