Improvements in Tiled Roofs and New Lining Tiles therefor.
Year: 1899

page_text: Date of Application, 15th Dec., 1899-Accepted, 3rd Feb., 1900
COMPLETE SPECIFICATION.
Improvements in Tiled Roofs and New Lining Tiles therefor.
I, ROBERT BOLTON RANSFORD, of 41, Waldegrave Road, Upper Norwood, in
the County of Surrey, Gentleman, do hereby declare the nature of this invention
(which has been communicated to me from abroad by The Basel Mission Tile
Works, of Mangalore, India,) and in what manner the same is to be performed
to be particularly described and ascertained in and by the following statement: --
The object of this invention is to provide a uniform and close fireproof ceiling
or lining beneath roofing-tiles, which will render the roof less pervious to wind
and will increase the resistance of the roof to the passage of heat both in hot
and in cold weather.
This ceiling or lining is formed, for instance, by a layer of flat tiles of the same
pitch as the covering tiles, the said flat tiles being laid on the battens or laths
of the roof and presenting a uniform surface on the under side. Upon these
flat tiles are placed the ordinary weather proof tiles in common use, leaving
an air space between the two layers to cause a break in the passage of heat
between them.
In the accompanying drawing Figure 1 represents a cross section of a sloping
roof established according to this invention and Figures 2 and 3 represent
respectively a side view and a plan of one of the new flat ceiling tiles used
in this roof.
Referring to these figures, a designs a rafter and b b the usual battens or laths
of the roof, upon which battens or laths rest the first layer of ceiling tiles c c.
These tiles butt one against another and are prevented from sliding over the
battens or laths by the knobs d d provided on their under sides. On the upper
side of each ceiling tile is a rib e, which acts like the batten in holding the
outer weather-proof-tile 9 from slipping. This arrangement leaves the air
spaces f, f between the two layers of tiles, which retard the passage of heat
through the roof.
Instead of merely butting against one another as shown in the foregoing
example, the ceiling tiles may also be joined together by overlapping or grooved
edges.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, I declare that what
I claim is:-
1. A tiled roof having a layer of tiles beneath a layer of ordinary waterproof
roofing tiles and air spaces betwen the two layers of tiles in order to render the
roof less pervious to wind and to increase the resistance of the roof to the passage
of heat, substantially as described.
2. A tiled roof having a layer of tiles beneath a layer of ordinary waterproof
roofing tiles, and air spaces between the two layers of tiles, the said lining tiles
being provided with projections on the under side to support them on the roof
battens or laths and also on the upper side to support the layer of weather
proof tiles, substantially as shown and described.

page_text: 3. As a new article of manufacture, a lining tile for roofs, with or without over-
lapping or grooved euges, said tile being provided with projections on the under
side to support it on the roof battens or laths and also on the upper side to
support a layer of weather proof tiles, substantially as described.
: Tal
of Doomhan 1900