US1968452A - Roofing structure - Google Patents

Description

July 31, 1934. HERlNG 1,968,452 7 ROOFING STRUCTURE Filed Feb. 26, 1934 INVENTOR.

Edward Ewing; ,3)

v ATTORNEY.

Patented July 31, 1934 PATENT DFFICE noorme STRUCTURE Edward Hering, Beverly, N. J., assignor to United States Pipe and Foundry Company, Burlington, N. J a corporation of New Jersey Application February 26, 1934, Serial No. 712,990

1 Claim.

My invention relates to the construction of that type of roofing described and shown in my Patent 1,806,685, of May 26, 1931. As heretofore constructed, such roofing in those features of con struction which secure the cap pieces and through them the roofing plates to the roof beams has, under certain conditions, proved to be unsatisfactory. The object of my invention is particularly to provide improved and satisfactory means of securing the cap pieces to the roof beams which will meet the exigencies of practical use. In roofs of the kind in question, roofing plates having ribs or flanges extending upward from their side edges and a hood like structure extending centrally from the bottom edge of the roofing plate upward toward but not to the upper edge of the plate are located in parallel rows, their upper edges resting upon a roof beam and their lower edges overlying the upper portions of a similar row of plates set in staggered relation to the plates of the upper row, adjacent plates of each row being somewhat spaced from each other to give passage to the locking lug of a cap piece and cap pieces are placed above the edges of adjacent plates with their sides extending over the lateral ribs or fianges of the plates and resting upon the surface of the plates, such cap pieces being provided with looking lugs extending from their upper portion downward between the edges of adjacent plates and means are provided for securing these lugs to the roof beams and my present invention consists in improved means for securing the locking lugs and the cap pieces to the beams in such a manner as to provide for an attachment which is at once secure and which will provide against the exigencies of practical use due to vibrations of the roof structure and to such stresses as are brought about by expansion and contraction of the roofing elements and particularly my invention consists in forming locking lugs on the cap pieces provided with openings adapted to receive the hooked end of a hook bolt and in combining therewith a locking bar having a hooked end, which bar lies against the underside of a roof beam with its hooked end extending over a flange of said beam and its opposite end extending beyond the opposite face of the beam, said locking bar being provided with a bolt hole adapted to give passage to a hook bolt, a hook bolt having its hooked end engaged in the perforation in the locking lug and its body portion extending through the bolt hole in the locking bar and a nut screwing on the free end of the hook bolt into contact with the underside of the locking bar. Preferentially, the bolt hole in the locking bar is formed so that it will lie closely adjacent to the side of the roof beam so that the hook bolt will aiiord a stop against movement of the locking bar in the direction of its hooked end.

My invention will be better understood as described in relation to the drawing forming part of this specification in which Figure 1 is an isometric view of a portion of a roof structure embodying my invention with certain sections broken away to illustrate details of construction.

Figure 2 is a partly sectional elevation of a portion of the roof structure also shown in Fig. 1, Fig. 2 being on an enlarged scale.

Figure 3 is a cross section on the line 33 of Fig. 2, and c Figure 4 is a perspective view of the locking bar element of my improved construction.

In the drawing, A, A, indicate roof beams, 13, B, roofing plates having upwardly extending ribs or flanges B at their side edges and a hood like structure 13 formed along the center of the plate and extending from the bottom edge toward but not to the top edge of the plate. B B indicate downwardly extending lugs formed at the top of the plate to engage the edge of the roofing beam upon which the top edge is supported. These plates are laid upon the roofing beams in parallel rows in such manner that successive rows of plates are in staggered relation to the plates in adjacent rows and in each row of plates the individual plates are sufficiently separated from each other to permit the passage of the locking lugs formed upon the cap pieces. C, C, etc., are cappieces of arcuate form which extend over the upwardly extending ribs or flanges of adjacent plates and rest upon the surfaces of the plates. The lower ends of these cap pieces are closed by transversely and downwardly extending webs, as indicated at C which webs extend somewhat below the side edges of the cap pieces so as to come close to or contact with the surface of an underlying plate. Each cap piece is provided with a downwardly extending lug, as indicated at G which in the assembled roof structure extends downward between the edges of the pair of plates spanned by the cap piece and is formed in its lower end with a perforation C adapted to receive the hooked end of a hook bolt. D is a locking bar having a hooked end D and near its opposite end a bolt hole D These locking bars are laid against the underside of a roof beam in properly spaced relation to the locking lugs of the cap pieces and with their hooked ends engaging a flange of the roofing beam and with their bolt hole so located as to lie beyond but preferably close to the opposite side of the roofing beam. E, E, etc., are hooked bolts having their hooked ends E engaged in the perforation C with their body portions extending through the bolt holes D in the locking bars 1) and F, indicate nuts, Wing nuts as shown, which are screwed up on the ends of the hook bolts E into contact with the underside of the locking bars D so as to hold the cap pieces, and through them the roofing plates, in proper position in the roof structure. The anchorage thus afiorded is, at the sanie'tiine, secure and adapted to maintain the proper a einbly of the roofing elements under all the exigencies of use While at the same time permitting of such motion of the parts as is brought about by expansion and contraction or other forces tending to bring about slight re-adiin in the positions of the roofing elements.

Having now described l'l'lj invention, What I claim as new and desire to secure by Letters Patent, is:

In a roof structure made up of roof beams, roofing plates supported on beams formed with upwardly extending ribs or flanges on their side edges and with a hood like structure extending from the bottom edge of the plate centrally up- Ward toward but not to the top edge of the plate, said plates being set in successively staggered rows and of cap pieces adapted to extend over the side flanges of adjacent plates and of means for securing said cap pieces to the roof beams, improved means for securing the roofing elements to the roof beams comprising in combination a downwardly extending lug of the cap piece extending between the edges of adjacent roofing plates and having in its lower portion a perforation adapted to receive the hooked end of a hook bolt, a locking bar having a hooked end, said bar lying against the bottom of the roof beam with its hooked end engaging a flange of said beam and its free end extending beyond the beam on the opposite side and having a bolt hole formed

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