Year: 1896

page_text: I, WILHELM KALTHONER, Manufacturer of Ostenfelde in the province of West-
phalia and kingdom of Prussia do hereby declare the nature of this invention to be
as follows:-
The grooved cement tiles hitherto employed are it is true provided with lateral
grooves and a top-groove for the purpose of protecting the roof in a measure from
the penetration of snow and rain but they suffer from the disadvantage, that no
kind of arrangement exists for keeping the damp from getting between the tiles.
A remedy for this defect can be found in the new groover tile.
In the accompanying drawing Fig. 1 shews a piece of a roof covering as seen
from above, Fig. 2 a cross-section of the same, y-y of Fig. 1 and Fig. 3 from the
side; Fig. 4 shews the under part of the tile, Fig. 5 is a section of Fig. 1, see xx
of Fig. 1, and Fig. 6 is a modification of the tile.
The upper surface of the tile is formed of the three curves a, a' and a with the
flat surface blying between. The curves a and a³ thus represent parts of a whole
arch, that in the same way as the two tiles A A placed close to each other, repre-
sented in Fig. 2, again from a complete arch.
On the left under longside of the tile are the grooves c which fit in the right of
the upper longer side of the tile.
On the right end of the top-groove e, which lies in a transverse direction, is
the ledgment f, into which the groove 9 catches.
By placing against each other the two neighbouring tiles, a square hollow h is
formed between the top hollows e e¹. The peg i fits into this on the under side of
the tile.
The top-groove in use up till now has vertical sides, so that the water, which
falls into it cannot run away. In winter this freezes and destroys the tiles.
In order to avoid this, the under lying side o of the groove is cut in a sloping
form, so that water coming into it, immediately runs out again.
The alteration illustrated in Fig. 6 consists of a gap h bounded by a peg / being
fixed on the under right end of the tile (see Fig. 1) in place of the niche hitherto
found there.

page_text: Improvements in Roofling Tiles.
I, WILHELM KALTHONER, Manufacturer of Ostenfelde in the province of West-
phalia and Kingdom of l'russia 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:-
The cement grooved tiles hitherto in use are, it is true already provided with
lateral grooves and in part also with a head-groove for the purpose of preventing
the snow and rain from entering below the covering of the roof, but they suffer
under the disadvantage of no kind of contrivance being in use at the corners,
which prevents the entrance of damp between the tiles:
It is the object of the new invention to do away with this disadvantage.
In the drawing filed with the provisional specification, Fig. 1 represents a piece
of roofing in an upper view, Fig. 2 the same in a section y-y of Fig. 1, and Fig. 3
in a side view; Fig. 4 shows a tile in a view from below, Fig. 5 in a section H-H
of Fig. 1 and Fig. 6 is a modification of the tile.
The surface of the tile is formed by three longitudinal stripes a, a, of a
vaulted section and with a flat stripe 6 lying deepened between each.
The vault a forms the middle of the tile, a and as the side edges. The latter
are formed as parts of a larger stripe in such a manner, that, as shewn by Fig. 2,
the part vaults a and a² of two. tiles A A¹ lying close to each other, form an entire
large vault of the same shape. and size of the vault a.
At the lower surface of the tile grooves care provided along the left side, which
grooves catch into the rabbets d lying along. the right side of the upper surface.
At the right end of the top-groove which goes right across to the upper surface
of-the tile there is the prominence f which catches into the cut g in the corres-
ponding rabbet on the lower surface of the next upper tile.
As the prominence f recedes from the right side of the vaulted stripe a² and the
vaulted part f of the groove e recedes from the left side of the corresponding
vaulted stripe a, a recess is formed in direction of the groove e at each edge of the
tile.
These two recesses corresponding together, when two adjacent tiles are laid near
each other, a deepened recess h of square section is formed, between the parts f
and. f lying in the top grooves e of the two tiles..
This recess has its place athwart the longitudinal joint of two vicinal tiles and
serves.for..including the peg i, of the next upper tile.
:
This peg i is arranged to the right at the lower surface near the foot-end of the
tile and forms a cross-close in the longitudinal joint of the tiles.
A similar cross-close. is formed by means of the niche n at the lower right end
of the tile in which enters the corresponding prominent clasp m on the lower
surface at the left upper end of the tile."
The modification shown in Fig. 6 consists in the combination of a notch ¹
with a peg instead of the niche n visible in, Fig. 1.
The top-rabbets hitherto in use were supplied with perpendicular walls; this
had the disadvantage that water which got into the groove could not run off, and
froze in winter thereby destroying the tile.
In order to avoid this, the wall o pointing downwards, of the groove is slanted
off so that the water arriving in the groove must immediately flow off.
Having now particularly described and ascertained the nature of my said in-

page_text: vention and in what manner the same is to be performed, I declare that what I
claim is:-
1. The arrangement of a prominence f at the top-groove e catching in a corres-
ponding to cut g in the cross-rabbet at the lower surface of the tile.
2. The arrangement of a peg i in combination with the recess h, formed in the
line of the groove e by two adjacent tiles.
3. The arrangement of a niche n or a notch n¹ at the lower right end of the tile,
in combination with a prominent clasp m, catching in n or n', at the left upper end
of the tile.
The sloning arrangement of the lower top-groove wall at o.