Improvements in the Construction of Walls, Ceilings, Floors, and the like.
Year: 1897

page_text: Date of Application, 3rd Dec., 1897-Accepted, 10th Sept., 1898
COMPLETE SPECIFICATION.
Improvements in the Construction of Walls, Ceilings, Floors, and
the like.
I, HERMANN WARNECKE, of Schildan, Halle District, in the Empire of
Germany, Architect, 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 object of this invention is to produce fire-proof, and insulating walls,
ceilings and the like.
In carrying my invention into practice I take a perforated sheet metal plate
and bend the same in such a manner that a series of closed connected triangles
are formed. The bases of these triangles, lying alternately on top and bottom,
form continuous surfaces, the whole forming a supporting body, which is divided
into several parts forming air chambers. The closing of the hollow triangular
spaces is effected by connecting the corners of the triangles.
Various kinds of such triangular sheet metal plates for use in the construction
of walls, ceilings, floors and the like are represented in the accompanying drawing,
in which
Figure 1 shows portion of a wall having both its sides coated with a cement.
Figure 2 is an underside view of Figure 1, showing the cement partly removed.
Figure 2 represents a longitudinal section of the plate provided with hooks
serving to support the cement.
Figure 3 represents a development of the plate shown in Figure 1.
Figures 4 and 5 are a longitudinal and cross section, respectively part of a
floor, and
Figure 6 represents a part of a roofing.
Figure 7 is an enlarged view of one of the triangles.
In forming the triangles abc, cde, and so on, I first bend the plate to form
the angle ab, then the angle bc at the right hand side is produced, and after-
wards the angles cd, de, and so on. It is obvious, that by this bending opera-
tion joints are formed between the bases of the separate triangles and that these
joints must be closed by connecting the respective bases or corners of the triangle
together.
By arranging a number of such triangles, the bases of which are connected to
each other so as to form continuous top and bottom plates, as represented, a
hollow supporting body is produced. The inner sides of the triangular elements
of this supporting body form a kind of rigid support giving an effective bearing
capacity to the said hollow supporting body. To ensure a good circulation of
air, the inner sides of the triangle are perforated. The bases or outer sides of
the triangles are perforated, and the edges produced by the perforations are bent
in form of hooks f, as shown in Figure 24, in order to securely hold the cement g.
The portion a in Figure 2 shows the perforations for ensuring the air circula-
tion while the portion d represents the perforations provided with hooks at the
outer sides to receive and hold the cement. The holes and hooks may be made

page_text: of any other suitable shape. The bases d of the triangles which according to
this constructional form are separated by the joints m, are connected with one
another by means of wires h as shown in Figure 2, but said connection may also
be effected by means of strips or hooks or by screws and the like. The distance
between these, connections is dependent upon the thickness of the sheet metal
and upon the stresses.
These triangular sheet metal plates may be arranged between angle irons or
iron pieces of other shape or between wooden beams or supports. The cement
may be put on before or after mounting. In the construction shown in Figures 4
and 5 a¹ is the beam or joist, b¹ the triangular sheet metal plate, k the angle irons
supporting the triangular plates, d' the flooring and..c!, the cement.
In Figure 6 a¹ is the rafter to which the angle irons k are fastened, upon
which the triangular plate bis supported. This arrangement must be such that
the cement c after being put on, will be on a level with the top of the rafter
above the plate b.
The object of the latter arrangement is to provide for a suitable roofing, for
instance, cloth or canvas roofing d*, which is placed above the cement coating c¹.
A roof provided with the described triangular plate has, by reason of the large
air space, an effective protection against heat and cold.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is:
Perforated sheet metal plates for walls, ceilings and the like constructed in
such a manner as to form a series of closed triangles, the bases of which, lying
alternately above and below form closed supporting elements with air chambers,
and connected outer surfaces, the closing of these triangles being effected by
connecting the bases of said triangles substantially as described.
Dated this 3rd day of December 1897
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.