Improvements in Building Slabs or Blocks.
Year: 1895

page_text: Date of Application, 3rd Apr., 1895
Complete Specification Left, 1st Jan., 1896-Accepted, 2nd Apr., 1896
Improvements in Building Slabs or Blocks.
I, PAUL STOLTE, of Genthin, in the German Empire, Manufacturer, do hereby
declare the nature of this invention to be as follows:-
My invention relates to building slabs or blocks whereby I am able to construct.
thin walls of great rigidity.
According to my invention I embed in the slabs or blocks which are made of.
any suitable material iron bars previously drilled through in the centre and at:
the ends.
the bar.
The length of the slabs is equal to the distance between the two outer holes of
In a line with these holes the slabs are grooved at their ends, and the
latter are further provided with vertical perforations in a line with the middle holes.
of the bar.
The construction of a wall with slabs of this kind is effected by superposing-
layers of such slabs in such a way that they break joint the vertical perforations of
the upper slabs corresponding vertically with the butt joints of the lower row.
The grooves at the ends of the slabs and the perforations in the slabs of the lower
row form, in conjunction, vertical channels in which are inserted bolts and into.
which cement or mortar is then poured.
In the same way the following courses of slabs are laid, the bolts inserted and
cement or mortar poured in.
:
The bolts thus pass through the boles in the bars and in conjunction with the
latter secure a firm union of the slabs with each other so that the wall as a
whole will bear a very great strain, although of very small thickness. Not only
does the wall support its own weight but it may also be used as a bearing wall.
A special advantage of this method of construction lies in the impossibility of
fissures occurring, or extending to any degree.
If desired, iron bars may also be inserted in the horizontal joints. They then.
extend along the whole length of the wall and are perforated as described for the
reception of the bolts at the same distances as the first described bars and the
slabs.
Dated this 29th day of November 1894.
Improvements in Building Slabs or Blocks.
I, PAUL STOLTE, of Genthin, in the German Empire, Manufacturer, 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
atatement:
My invention relates to building slabs or blocks whereby I am able to construct
1
5 I, PAUL STOLTE, of Genthin, in the German Empire, Manufacturer, 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:-
My invention relates to building slabs or blocks whereby I am able to construct
11

page_text: Figure 1 is an elevation of a slab or block made according to my invention:
Figure 2 is an end view of the same :
Figure 3 is a transverse section :
Figure 4 is a plan; and,
Figure 5 is a sectional elevation of part of a wall constructed with my improved
slabs or blocks.
Figures 6 to 12 illustrate various forms of bolts employed in carrying out my
invention.
According to my invention I embed in the slabs or blocks a which are made of
any suitable material iron bars b previously drilled through in the centre and at
the ends.
The length of the slabs a is equal to the distance between the two outer
perforations or holes c, e of the bar b. In a line with these holes the slabs are
grooved at their ends, and the latter are further provided with vertical perforations
in a line with the middle holes d, d of the bars.
The construction of a wall with slabs of this kind is effected by superposing
layers of such slabs in such a way that they break joint, the vertical perforations of
the upper slabs corresponding vertically with the butt joints of the lower row.
The grooves at the ends of the slabs and the perforations in the slabs form, in
conjunction, vertical channels in which are inserted bolts f, f and into which cement
or mortar is then poured.
In the same way the following courses of slabs are laid, the bolts inserted and
cement or mortar poured in.
The bolts f, thus pass through the holes c and d in the bars b, band in
conjunction with the latter secure a firm union of the slabs with each other so that
the wall as a whole will bear a very great strain, although of very small thickness.
Not only does the wall support its own weight but it may also be used as a bearing
wall. The bolts may be provided with heads of various shapes as illustrated in
Figures 6 to 11 or be adapted to receive cotters as in Figure 12.
A special advantage of this method of construction lies in the impossibility of
fissures occurring, or extending to any degree.
If desired, iron bars may also be inserted in the horizontal joints. They then
extend along the whole length of the wall and are perforated as described for the
reception of the bolts at the same distances as the first described bars and the
slabs.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what
claim is :-
1. Slabs for building walls and the like wherein one or more iron bars are
embedded in the slab and are perforated both in the middle and at their projecting
ende to correspond with the holes in the slab, the said perforations serving to
receive vertical bolts provided with heads or cotters in such a manner that in
constructing a wall the slabs are superposed in rows so as to break joint and the
bolts pass through the end perforations of the bars of one row and through the
central perforations of the bars of the next row, substantially as described.
2. The improved building slabs or blocks bereinbefore described and illustrated
in the accompanying drawing.
Dated the 1st day of Jonu 1806
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.