A New or Improved Moulded Brick for Ceilings and the like.
Year: 1899

page_text: Date of Application, 9th June, 1899-Accepted, 5th Aug., 1899
COMPLETE SPECIFICATION.
A New or Improved Moulded Brick for Ceilings and the like.
I, GEORG ROSKE, of Luisenstrasse, 14, Gera,-Reuss, in the Empire of Germany,
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;-
-
The object of this invention is a new or improved moulded brick specially
adapted for the construction of solid or massive ceilings and the like for which
solid concrete has hitherto mostly been used.
Owing to their sectional conformation the new bricks, when properly laid,
engage with and support each other, whereby the weight-supporting capacity
and the antivibration properties of the ceilings are greatly increased; the ceiling
is furthermore rendered absolutely fire-, and fungus-proof.
The advantages of solid or massive ceilings are well known to experts;
especially in cases where heavy loads have to be supported solid ceilings are far
more durable stronger and also less expensive than ceilings constructed in the
known manner from wood and plaster. Massive ceilings made of concrete or
masonry have however not been found reliable in all cases on account of the
difficulty to secure a perfect bond, and to overcome this difficulty is the principal
aim of the present invention.
In order to render this invention more readily understood I have hereunto
attached a sheet of drawings in which:-
Fig. 1 illustrates the new moulded brick in perspective view.
Fig. 2, is a sectional view of two bricks showing the manner in which they
connect or engage with each other.
Fig. 3, illustrates one of the methods of constructing a ceiling between two
floors with the new moulded brick.
The brick A (Fig. 1) can be produced by the ordinary moulding machinery
and can be made from porous material or from ordinary clay, and either hollow
or solid.
On one of its narrow longitudinal sides the brick is provided with a rounded
ridge, bead, or tenon a running along the centre of the side for the full length
of the brick, and has also two longitudinal cavities, grooves or furrows b¹ b¹,
adjoining and running parallel to ridge a.
The opposite side of the brick has a longitudinal cavity, groove or furrow a¹
corresponding to and adapted to receive the ridge or bead a of the adjoining
brick, and two rounded ridges or heads b b corresponding to and adapted to
enter the grooves 61 b of the adjoining brick, as shown in Fig. 2.
The ridges or beads a and b b will therefore, when the bricks are properly laid
in position, respectively bear against the walls of grooves a b¹ and 61, whereby
one brick is made to engage with and support and be supported by the bricks it
is brought into contact with. As the bricks are laid in the ordinary fashion,
every alternate line or run commencing with a half brick, the bricks in one run
will overlap those in the adjoining run, so that every single brick is made to
engage with others in both adjoining runs.

page_text: In Fig. 3 is illustrated one of the various methods of constructing a very strong
and durable partition between two floors. After the usual scaffolding has been
erected and adjusted, or suspended from the iron girders or joists G, the bricks A
are carefully laid in the known fashion, alternate runs being started with half
bricks in order to ensure the over-lapping of all bricks composing the said runs.
Wooden beams H are then laid on the bricks so as to reach the level of the upper
girder-flange, said beams being intended to receive the nails or screws by means
of which the floor boards B are to be held. The space between the bricks and
the plane of the upper girder-flange and the upper surface of beams H is then
filled up with concrete, and after the latter has set and hardened and a perfect
bond has been effected the floor boards B are laid down and secured to beams H.
In due course the plastering P is applied to the lower surface of the bricks which
may be roughly furrowed or chamfered in order to present a suitable holding
surface to the plaster, and the surface of the lower girder-flange may be covered
with wire netting or be otherwise prepared for the like purpose. A certain per-
centage of bricks may be provided at their ends with bevels or suitably shaped
scores to correspond to and lie over the lower girder-flange at the start of a run
of bricks for the purpose of preventing a plastering of too great thickness being
rendered necessary in order to hide and cover the surface of the lower girder-
flange.
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:-
A new or improved moulded brick having on one side a rounded longitudinal
ridge or head and two longitudinal grooves or furrows 61 badjacent-and-
parallel thereto on both sides, and on the opposite side two longitudinal ridges
or beads bb and one longitudinal groove or furrow a¹, substantially as and for
the purpose set forth and illustrated in the accompanying drawings.
Dated this 9th day of June 1899.