Interlocking Building Plates or Slabs with Wire Net Core.
Year: 1896

page_text: Date of Application, 24th June. 1896-Accepted, 3rd Oct., 1896
COMPLETE SPECIFICATION.
Interlocking Building Plates or Slabs with Wire Net Core.
We, HUGO ERHARDT, HUGO VENTZKY, and WILLY CHROMETZKA, all of
69 Friedrich Wilhelmstrasse, Breslau, in the Empire of Germany Manufacturers,
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 :-
This invention relates to interlocking building plates or slabs provided with a
core of suitable wire netting.
This has for object to combine the tensile strength of the iron with the
compressive strength of the cement, plaster of Paris, and the like so as thereby
to produce a compound material that has great tensile and also great compressive
strength.
In the accompanying drawings-
Figs. 1 to 6 illustrate a number of modes of construction of these interlocking
building plates.
Figs. 7 to 10 illustrate the employment of these plates for coverings, pipes, etc.
These interlocking building plates can be constructed of any desired thickness to
correspond with the pressure to which they are to be subjected. Further the wire
net core may be made thicker or thinner according as the plates are designed to
withstand a greater or smaller tensile strain.
Figs. 1 and 2 of the accompanying drawings illustrate the construction of a plate
of this kind suitable for use to form solid walls ceilings and the like.
Figs. 3 and 4 illustrate a construction of these interlocking building slabs with
wire net core suitable for walls and the like which are formed with insulating
spaces as shown in the arrangement of the slabs in Fig. 8.
The upper portion of the slab is in this modification inade wider accordingly than
the lower portion so that when the slabs are placed close together a suitable
space (e Fig. 8) will be left between them which serves for the purpose of
insulation.
The construction of the interlocking slabs with wire net core d shown in Figs. 5
and 6 is suitable for use for waterworks, water conduits, and the like, because they
are curved to a suitable radius so that they can be readily put together to form
mains and pipes as shown in Fig. 10 of the accompanying drawings.
The use of the slabs for making up pipes has the great advantage that the slabs
are considerably more easily portable than mains and pipes made direct in one
piece. Further the putting together or building up of the mains which are used
on such a large scale in such works is more easy than the laying and shifting of
mains formed in one piece. The connection at the joints is most preferably effected.
by means of any suitable binding agents and this jointing or connection is so
efficient and clean that it is impossible to burst such mains or to distinguish them
as regards their external appearance from mains made in one piece.
Bursting of pipes built up in this way is impossibie for the one reason alone that
the surfaces to be connected or jointed together are made as large as possible.
Also the herein before mentioned wire net core d acts to increase the great strength
of these pipes or conduits thus formed.
The construction of walls ceilings and the like of these interlocking slabs is
extremely simple because said slabs need ouly to be fitted together and the joints
filled up with cement or any suitable binding agent.

page_text: As each single slab is capable of supporting a load separately therefore it is
obvious that a combination of a number of such slabs is capable of supporting and
withstanding any corresponding tensile and compressive strains so that ceilings
or vaults can be built of such slabs which act as abutments one to the other.
The construction shown in Figs. 3 and 4 is also suitable for the construction of
insulating roofs because the interspaces (e Fig. 8) produced by the use of these
slabs afford a very effective insulation that is to say prevent as far as possible heat
and cold from penetrating.
The use of these building slabs affords perfect protection against fire risk, and
these slabs also prevent the entrance of moisture.
The use of these interlocking slabs with wire net core d has also the further
advantage that premises or rooms constructed of these slabs can be put into use
very quickly.
The fitting together of the slabs is a simple matter.
By using these slabs in building arches and vaults abutments can be dispensed
with and anchoring can be restricted. to a minimum. The load-supporting capacity
or strength of ceilings, roof vaults, walls, etc., is increased to a great extent by
means of the wire net core d whilst the own weight of these erections is reduced
to a minimum because the use of the wire net core enables the slabs to be made
very thin.
The use of these interlocking building slabs affords a considerably greater
average or mean compressive and tensile strength or load-supporting capacity so
that the vibrations or rocking movements of vaulted roofs and the like ordinarily
produced by rythmic loading are reduced to a minimum.
As already stated the use of slabs formed with a suitable cross-sectional form of
joint produces an uninterrupted or continuous solid firm whole and thereby
enables abutments and anchoring (staying) to be dispensed with or reduced to a
ininimum.
The modified construction of the interlocking building slabs in the form of an
insulating wall (Fig. 8) may also be utilized for building flues for hot air for the
purpose of providing an efficient and rational means of heating and ventilating
the floor and the walls and thereby of the corresponding rooms or premises.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is
1. Building slabs or plates made of cement, plaster of Paris, or other suitable
material and formed with tongues or fillets and with a core of wire netting
substantially in the manner and for the purposes herein before described.
2. Constructing interlocking building slabs or plates with a core of wire netting
and having portions a a (Figs. 3 & 4) made of such a width that on fitting these
slabs together there is produced an insulating wall (Fig. 8) substantially in the
manner and for the purposes herein before described.
3. Constructing interlocking building slabs or plates with a
netting and curved to a determined radius (Figs. 5, 6, and 10) so that by fitting
core of wire
said slabs together tubes or pipes of determined diameter are produced substantially
in the manner and for the purposes herein before described.
Dated this 24th day of June 1896.
TONGUE & BIRKBECK,
Southampton Buildings, Chancery Lane, London, W.C.,
Agents for the Applicants.
TONGUE & BIRKBECK,
Southampton Buildings, Chancery Lane, London, W.C.,
Agents for the Applicants.