Patents: 526 of 530
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Nº24,457 |
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A.D. 1909 |
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Date of Application, 25th Oct., 1909--Accepted,
28th Apr., 1910
COMPLETE SPECIFICATION
Improvements in or relating to Reinforced Concrete Structures.
I, FRIEDRICH
LUDWIG KEPPLER, Architect, of Lehderstrasse
34/35, Weissensee, near Berlin, Germany, 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 reinforced concrete
structures and is particularly applicable to the building of roofs, floors
and the like. The object of this invention is to form structures which
offer greater resistance to stress and strain and at the same time afford
a maximum area for the passage of light.
According to this invention metal frames each
adapted to support a transparent panel and having lateral projections
are built up in such a way that spaces are left between the edges of
each adjacent frame, the lateral projections serving as distance pieces
to determine the spaces which are subsequently filled with cement or
other binding material in which are embedded reinforcing metal rods.
In the accompanying drawings,
Figure 1 shows in plan the corner of a concrete
structure according to this invention, the glass panels and binding
material being omitted.
Figure 2 is a section on the line 2—2 of
Figure 1.
Figure 3 is a section on the line 3—3 of
Figure 1 showing the glass panels in place and the binding material,
and
Figure 4 is a plan view of the four adjoining
corners of a modified form of metal frame.
A building element according to this invention
comprises a metal frame 1 adapted to support a glass panel 2, preferably
of square or other rectangular form, a layer of cement being inserted
between the upper edge or rim of the frame and the glass panel.
Each corner of the frame has a lateral flange
or extension 3 forming a distance piece to determine the width of the
space between each frame.
To form a concrete structure of the required
size, a series of unit frames as above described are assembled on or
off the site to suit special requirements, temporary centering being
employed in the former case. The frames are placed together in such
a way that the projections 3 form distance pieces which determine the
width of the longitudinal or transverse spaces 4 and 5 between each
frame. These spaces are then filled with cement, the reinforcing rods
6a and 6b being
embedded therein, after which cement is placed with a trowel on top
of the upper edges or rims of the frames 1. The glass plates 2 are
then put in position on the layer of cement, slight pressure being
used to get the same in alignment. The remaining space between the
glass plates 2 is then filled up with mortar, thereby making the whole
into a compact plane surface. The cement or binding material unites
the series of frames and forms a single structure which, by reason
of the iron frames and reinforcing bars 6a,
6b, is capable of withstanding severe stresses
or strains, being at the same time of an almost entirely transparent
nature. The glass panels 2 and the metal frames 1 may be of any shape
or size to meet varied requirements.
In the special form of construction shown in
Figures 1 to 3 the metal frames 1
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