Improvements in Roofing Tiles.
Year: 1892

page_text: Date of Application, 6th Apr., 1892-Accepted, 7th May, 1892
COMPLETE SPECIFICATION.
Improvements in Roofing Tiles.
I, OSCAR RUDOLF WESTBLAD, of Elfkarleö, in the Kingdom of Sweden,
Manager, do hereby declare the nature of this invention and in what manner the
same is to be performed to be particularly described and ascertained in and by
the following statement :-
My invention relates to roofing tiles having a free surface of a symmetrical
shape in the longitudinal direction of the tile. The free surface can therefore be
either of regular hexagonal, elongated hexagonal, square or rhombic form, the
longitudinal direction going along a diagonal. The tiles do not lie loose upon
each other as has hitherto generally been the case but are provided at the under
side with ribs along half their periphery which ribs are adapted to engage i
corresponding grooves near the upper edges of the tiles placed beneath.
:-
To enable my invention to be fully understood I will describe how it can be
carried into practice by reference to the accompanying drawing in which:-
Figure 1 is a plan of a number of hexagonal tiles constructed according to my
invention.
Figures 2 and 3 are plans of the upper and under sides respectively of one of
such tiles, and
and
Figure 4 is a section of the same.
Figure 5 is a top view and a longitudinal section of a tile of a rhombic shape
Figure 6 is a plan view of a tile of elongated hexagonal shape.
The
Each tile of the shape shewn in Figures 1, 2, 3 or of the shape shewn in
Figure 6 has a groove A on the top running parallel with three of the adjacent
edges of the tile and constituting the upward limit of the free surface of the
tile. On the under side the tile is provided with a rib B along the three
remaining edges. On the under side the tile has at the upper edge a stud C
intended to be hooked over the roofing lath in the usual manner.
ibs B have the same shape as the grooves A so that the rib of one tile
can be introduced into the grooves of three tiles placed beneath the said tile.
The tiles can thus be placed one upon another from below upwards on the roof, so
that all the top edges of each tile are covered by the lower edges of the tiles
placed above. The roof will thus have an attractive appearance and the
grooves A constitute gutters along the entire inclination of the roof through which
gutters any water which may penetrate into the grooves is conducted away.
DD are recesses in the edges of the groove A to permit the introduction of the
ribs into the said groove, but the said recess does not extend quite to the bottom
of the groove A; neither water nor snow can therefore penetrate through the
roof. In order that the tile may not be unnecessarily heavy it is hollowed out
at E.
In square or rhombic tiles the grooves A are made near the two upper edges
of the tiles and the ribs B on the two lower edges of the same, as shewn in
Figure 5.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is:
-
1. Roofing tiles having a free surface of a symmetrical shape in the longitudinal
direction of the tile near the upper adjacent edges of which there is on the top of
the tile a groove A and along the lower edges of which is a rib B projecting from
the under side of the tile and adapted to engage in the grooves of the adjacent

page_text: tiles so that the ribs of two or three tiles may be introduced into the groove made
in the top side of the tile beneath, while the rib of this latter tile is introduced into
the grooves of two or three tiles placed beneath the last mentioned tile, sub-
stantially as hereinbefore described.
2. The improved tiles hereinbefore described with reference to the accompanying
drawing.
Dated the 6th day of April 1892.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.