Improvements in the: Manufacture of Hollow Tiles..
Year: 1891

page_text: Date of Application, 3rd Mar, 1891.
Complete Specification Left; 29th Oct.,' 1891—Accepted; 5th Dec., 1891
PROVISIONAL SPECIFICATION.
Improvements in the: Manufacture of Hollow Tiles..
I, HENRI STURM of 16 Rue Drouot; Paris, France, do hereby declare the nature
of this invention to be as follows:-
My invention relates to the structure of and method of making tiles for roofing
hollow so as to secure lightness consistently with strength, and lessen conduction
of heat through them. A tile according to my invention consists of an inner
and an outer plate at some distance apart, with longitudinal ribs at intervals
connecting the two plates, so as to form between the plates a set of parallel
longitudinal passages. Along each edge on opposite sides there is formed a groove
and a shallow rib beyond it so that, when the tiles are laid side by side, the edge
of the one overlaps that of the other and the shallow rib of the one lies in the
groove of the other. So far, the tile, having throughout a uniform section, is made
by being pressed out longitudinally through:a die and cut off. in- suitable lengths.
It has however to be farther shaped as follows. First, at the upper end on the
lower side of the tile is attached a piece in the shape of half a short hollow
cylinder which bearing against the horizontal batten of the roof. supports the tile
when laid, and has a nail driven through it into the batten to prevent it from
shifting. A groove is also made, across the upper face.of the tile near its upper
edge, so that, when the tile is overlapped by the next higher tile, a piece of
pitclied yarn or such like packing is compressed in the groove to prevent passage
of water. Finally, by means of a special moulding tool the lower edge of the
tile is shaped, the clay being forced in so as to close the lower ends of the
longitudinal channels, and the edge is moulded so as to present a projecting bead,
to form a drip when the tile is in position. Before baking, the tiles are dried
between two rigid frames faced with plaster which keeps them in shapei and
rapidly absorbs their moisture.
Dated this 3rd day of March 1891
ABEL & IMRAY,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Hollow Tiles.
1, HENRI STURM of 16 Rue Drouot, Paris, France, 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 the structure of and method of making tiles for roofing
hollow so as to secure lightness consistently with strength and lessen conduction
of heat through them. A tile according to my invention as shewn in plan and
transverse section Figure 1 and in longitudinal section Figure 2 and Figure 1^
consists of an inner and an outer plate at some distance apart, with longitudinal
ribs at intervals connecting the two plates, so as to form between the plates a set
of parallel longitudinal passages d. Along each edge on opposite sides, there is
formed a groove and a shallow rib r beyond it so that when the tiles are laid side
by side the edge of the one overlaps that of the other and the shallow rib r of the
one lies in the groove of the other. So far, the tile, having throughout a uniform
section is made by being pressed out longitudinally through a die and cut off in
suitable lengths. It has however to be farther shaped as follows:-First at the
upper end on the lower side of the tile is attached a piece a in the shape of half
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page_text: a short hollow cylinder which bearing against the horizontal batten of the roof
supports the tile when laid and has a nail a driven through it into the batten to
prevent it from shifting. A grooves is also made across the upper face of the
tile near its apper edge, so that when the tile is overlapped by the next higher tile
a piece of pitched yarn or such like packing is compressed in the grooves to
prevent passage of water. Finally, by means of special moulding tools Fig. 3
and Figure 5 the lower edge of the tile is shaped, the clay being forced in so as
to close the lower ends of the longitudinal channels which are open as shewn in
Figure 4 and the edge is moulded so as to present a projecting bead to form a
drip when the tile is in position. Before baking, the tiles are dried between two
rigid frames faced with plaster which keeps them in shape and rapidly absorbs
their moisture. Figure 6 is a longitudinal section, Figure 7 is a plan and Figure 8
a part transverse section of a pair of frames for this purpose.
Each frame h
which may be of wood or metal with wire net stretched in it is faced with plaster
of paris on both sides, or, instead of the frame and net, a corrugated plate t as
shown in Figure 9 may hold the plaster facing, which in both cases can be readily
repaired or fresh faced when necessary. By binding each tile between these frames
it is kept straight and even until it is dried.
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. A tile formed internally with longitudinal hollows closed at their lower ends
and externally with lateral grooves and ribs, and with a semicylindrical piece for
fixing to batten, substantially as described.
2. Constructing tiles such as are above referred to by forcing the clay through a
die, cutting it to lengths, shaping the end of each length and attaching the fixing
piece.
3. Drying tiles such as are above referred to, without deformation by clamping
them between rigid frames faced with plaster of paris.
Dated this 29th day of October 1891.
ABEL & IMRAY,.
Agents for the Applicant.