IMPROVEMENTS IN THE CONSTRUCTION OF ROOFS FOR HOUSES AND OTHER BUILDINGS
Year: 1881

page_text: LETTERS PATENT to William Robert Lake, of the Firm of Haseltine, Lake,
& Co., Patent Agents, Southampton Buildings, London, for an Invention
of IMPROVEMENTS IN THE CONSTRUCTION OF ROOFS FOR HOUSES AND
OTHER BUILDINGS." A communication from abroad by John Schieder and
Charles Polzer, both of Vienna, Austria. .
PROVISIONAL SPECIFICATION left by the said William Robert Lake at
the Office of the Commissioners of Patents on the 16th July 1881.
WILLIAM ROBERT LAKE, of the Firin of Haseltine, Lake, & Co., Patent Agents;
Southampton Buildings, London. IMPROVEMENTS IN THE CONSTRUCTION OF
ROOFS FOR HOUSES AND OTHER BUILDINGS." [A communication from abroad by
John Schieder and Charles Polzer, both of Vienna, Austria.]
These improvements consists in constructing roofing of lattice or trellis work,
coated with cement or hydraulic lime or other suitable substance, which is at first
liquid or semi-liquid and afterwards becomes hard.
The lattice or trellis may be made of wire, or of bars, or strips of metal, or
wood, or of woven fabric, and is to be first stretched on bare or covered rafters of
the roof, and then coated with the liquid or semi-liquid cement or other suitable
substance hardening after a time.
The form or construction of the lattice or trellis as well as the size of the meshes
may vary without departing from the substance of this Invention. The material
of which the trellis is made may be galvanized iron-wire or other wire, or strips of
sheet metal, or of wood or woven fabrics.
In carrying this Invention into practice it has been found advantageous to first
cover the rafters with boards, the lattice or trellis work is then laid thereon and
coated with cement. When the cement has become sufficiently hard the boards
beneath this roofing may be removed.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said William Robert Lake in the Great Seal Patent Office on the
16th January 1882.
WILLIAM ROBERT LAKE, of the Firm of Haseltine, Lake, & Co., Patent Agents,
Southampton Buildings, London. "IMPROVEMENTS IN THE CONSTRUCTION OF
ROOFS FOR HOUSES AND OTHER BUILDINGS." A communication from abroad by
John Schieder and Charles Polzer, both of Vienna, Austria.
This Invention relates to improvements in the construction of roofs for houses
and other buildings, and consists in constructing roofing of lattice or trellis work
coated with cement, or hydraulic lime, or other suitable substance, which is at first
liquid or semi-liquid and afterwards becomes hard.
The lattice or trellis may be made of wire, or of bars or strips of wood or of
woven fabric, and is first stretched upon the bars or covered rafters of the roof,
and then coated with the cement, or hydraulic lime, or other semi-liquid substance
which becomes hard.
The form or construction of the lattice or trellis as well as the size of the meshes
thereof may be varied without departing from the principle of this Invention. The
material of which the trellis is formed may be galvanized iron wire, or other wire
or strips of sheet-metal, or wood, or woven fabrics.
In the accompanying Drawing I have illustrated a suitable method of carrying
the present Invention into practice. In this Drawing
Figure 1 is a section, and
Figure 2, a plan or top view partly in section of a portion of my improved roof.
A, A, are the rafters; B is the roof or roofing, consisting preferably of a trellis
of galvanized iron wire coated with cement. This roofing is made in the following
manner, that is to say:-The boards 2 are permanently fixed to the rafters A, A,
whilst the temporary slats 3, 3, carrying the temporary boards 1, 1, are so arranged
that they may be removed after the roofing is finished. The trellis work is then
laid on the boards 1 and 2, and the cement in a liquid or semi-liquid state is poured
over the said trellis work until it completely encloses the same. When the cement
has set and has become sufficiently hard the boards 1 and slats 3 are removed,
leaving the roofing B supported by the boards 2 and rafters A.
Having thus fully described the said Invention, as communicated to me by my
foreign correspondent, and the manner of performing the same, I wish it understood
that I claim,-
The construction of roofs by the employment of cement or equivalent substance
in combination with trellis-work, substantially as above described and shown in
the Drawing.
In witness whereof, I, the said William Robert Lake, have hereunto set my
.hand and seal, this Sixteenth day of January, in the year of our Lord One
thousand cight hundred and eighty two.