An Improved Flooring for Roofs, Terraces, Balconies, and other Constructions.
Year: 1890

page_text: Date of Application, 18th Feb., 1890-Accepted, 5th Apr., 18:0
COMPLETE SPECIFICATION.
An Improved Flooring for Roofs, Terraces, Balconies, and other
Constructions.
We, JOHANN SCHULTZ and EDUARD HOPF both of Ferdinand Strasse 35, Hamburg,
in the Empire of Germany, Manufacturers, do hereby declare the nature of our
invention 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 produce a water-proof and fire-proof flooring
suitable principally for roofs, terraces, balconies, platforms and the like where persons
or foot passengers pass or congregate, the said improved flooring having also the
advantage of withstanding an almost unlimited amount of wear.
The method of producing the flooring or covering as follows:
On the concrete layer or boarding are fastened. two or more layers of carton-pierre
or roofing-paper by means of mastic cement or pitch. After the layers of carton-
pierre have been pressed firmly together by the application of rollers or other means
of giving pressure, the surface of the upper layer of carton-pierre is covered with
mastic cement or pitch, and then covered over with rough slabs of artificial stone or
tiles of about 2 centimetres thickness which have been previously warmed.
Previous to the laying down of these tiles the latter are covered with mastic cement
or pitch on the bottom and side surfaces so that they may be closely joined together
in order to produce a water tight surface. Over the roofing thus prepared is spread
an equal layer of cement of about 1 to 2 centimetres thickness, which adhering to the
clean surface of the rough stone slabs or tiles covers over all joints, and produces an
equal, level surface, which has the qualification set forth above. A compact substance
is thus produced since the stone-slabs adhere to the carton-pierre by means of the
fatty or adhesive medium, and on the other hand the cement layer sticks perfectly.
securely to the said stone-slabs, as the surface of the latter remains clean and free from
grease. The layer of cement thus keeps the separate slabs together, preventing the
mastic cement leaking out between the joints of the stone-slabs, by which the roof
would become soiled and be unfit for walking thereon.
In the combined use of the stone-slabs fastened on the carton-pierre and of the
layer of cement on the slabs rests the main feature of this invention and its difference
from other known constructions.
If by leaving out the stone-slabs the cement were applied direct on a foundation of
carton-pierre or asphalt, a sufficient connection of the parts could not take place on
account of the fatty nature of the foundation.
Previous to hardening the cement-layer may be ornamentally impressed on the
surface by the pressure of patterns or lines in the known manner.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is :-
A flooring consisting of a layer or layers of carton-pierre or roofing paper
fastened by means of mastic cement or pitch on a boarding or concrete or other
foundation, a layer of stone-slabs, or tiles fastened thereon as set forth and left clean
on the upper surface, and a cement covering or layer spread on the said slabs sub-
stantially as set forth.
حيمي
1
TA
HERBERT & Co.,
18, Buckingham Street, Strand, London, W.C., Agents to Applicants.