Improvements in and connected with Tongued and Grooved Bricks.
Year: 1897

page_text: Date of Application, 28th Apr., 1897
Complete Spanification Laft 20th Lan
1000
PROVISIONAL SPECIFICATION.
Improvements in and connected with Tongued and Grooved Bricks.
I, AUGUST WEHLER, of 10, Rothenthurmstrasse, Vienna, I., Austria, Staff
Captain, of Engineers, do hereby declare the nature of this invention to be as
follows:-
This invention has for its object to provide an improved tongued and grooved
brick and consists in forming the sides and ends thereof in corrugation fashion
with single or double recesses and projections arranged parallel to fit and interlock
with each other.
This improved form of tongued and grooved brick may be made by hand or
mechanically by pressing the clay through a nozzle shaped conform with the
described section of brick and cutting same afterwards in lengths by a wire suit-
ably guided.
In order to reduce the weight of the said bricks they may be longitudinally
formed with a hole by providing the said nozzle with a corresponding core.
By means of the construction of tongued and grooved brick described any kind
or shape of arch may be built.
F. BOSSHARDT & Co.,
Agents to Applicant,
Improvements in and connected with Tongued and Grooved Bricks.
I, AUGUST WEILER, of No. 10, Rothentharmstrasse, Przemyse, Vienna, in the
Austro-Hungarian Empire, Staff Captain of Engineers, do hereby declare the
nature of this invention and in what manner the same is to be performed, to he
particularly described and ascertained in and by the following statement:-
The object of the present invention is an improved brick for building purposes,
which is provided, both on the top and bottom as well as on the two end surfaces
of the brick with a projection or with a recess, the recess in each case being made
on the side opposite to that bearing the corresponding projection. Such bricks
are specially adapted for flat structures between iron girders, for the construction
of ceilings as well as for stair case constructions. A greater strength of the ceil-
ing is attained with a less thickness, combined with less cost in its construction.
[Price 871

page_text: The lower surface of the ceiling can be made perfectly flat by coating it with
plaster, the flange of the girder being also covered and thus made invisible, so
that there is no difference in the appearance of the ceiling as compared with any
others. For the purpose of diminishing their weight, the bricks may be per-
forated longitudinally and transversely. The junction with the girder flange can
be attained by providing a suitable groove in the adjacent brick or by the use
of special bricks for the flange. The lower surface of the bricks may be provided
with grooves or dove-tailed recesses to ensure a better adhesion of the plaster.
The invention is illustrated in the accompanying drawings in which:
Figure 1 shows a cross section of such a brick.
Figure 2 is a longitudinal section through a brick made according to one
method of carrying out my invention.
Figure 3 is a cross-section through a brick for the girder flanges.
The brick which can be made of clay concrete or any other suitable material
possesses on one of its longitudinal surfaces a groove a of a wavelike cross-section
as illustrated in Figure 1. The opposite longitudinal surface of the brick is pro-
vided with a correspondingly shaped tongue which fits the groove a of the
adjoining brick. The transverse surfaces of the brick are likewise provided with
a groove on one side and a correspondingly shaped tongue d on the other side.
In producing the bricks by machinery perforations e running in the longitudinal
direction of the brick may be provided for the purpose of reducing their weight.
The brick may also be provided on the bottom, or both the bottom and top
surface with grooves f of dove-tail shaped section in order to ensure a better
adhesion of the plaster. The junction to the girder flanges can be attained by
the use of the brick as illustrated in Figure 3. The shape of this brick is that of
a trapezium or trapezoid. One of its surfaces is provided with a groove g, to
serve for the reception of one of the lower flanges of the girder. The opposite
surface of this brick is inclined to serve as a resting surface for the structure.
This brick may also be provided with perforations e and grooves f. By the
arrangement of the tongues and grooves engaging with each other a displacement
of the bricks on their respective position to each other is completely obviated, so
that the structure will be a very strong one. Cement will be most suitable as an
adhering means. These improved bricks may not only be used for flat structures,
but also for walls and constructions of all kinds, bridge or arch constructions,
bomb-proof buildings, wide spanned, very light and yet strong church structures
and the like. The manner of application of the bricks is the usual one.
-
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:-
1. An improved brick for building purposes of all kinds, the two longitudinal
surfaces as well as the two transverse surfaces of which are formed, one side with
an undulating tongue (b, d) and the other side with a correspondingly shaped
groove (a, c), substantially as described and illustrated.
2. An improved brick for building purposes of all kinds, the two longitudinal
surfaces as well as the two transverse surfaces of which are formed, one side with
a wave like tongue and on the other side with a correspondingly shaped groove;
perforations (e) being provided for the purpose of reducing their weight substan-
tially as described and illustrated.
3. An improved brick for building purposes of all kinds the two longitudinal
surfaces as well as the two transverse surfaces of which are formed one side with
an undulating tongue and on the other side with a correspondingly shaped groove;
the bottom or both the bottom and top surfaces being provided with grooves (f)
for the purpose of attaining a better adhesion of the plaster, substantially as
described and illustrated.
4. An improved brick adapted to serve for the junction of the structure to the
girder formed on one side with a groove for the reception of the girder flange

page_text: and the other surface inclined to serve as a resting surface for the structure sub-
stantially as described.
Dated the 28th day of January 1898.
PHILLIPS & LEIGH,
No. 22, Southampton Buildings, Chancery Lane, London, W.C.,
Agents for the Applicant.