A New or Improved Construction of Brick.
Year: 1897

page_text: Date of Application, 5th Oct., 1897-Accepted, 6th Nov., 1897
COMPLETE SPECIFICATION.
A New or Improved Construction of Brick.
We, GERHARD VEHRENKAMP, of 45 Hermannstrasse Hamburg, Germany,
Merchant, and HEINRICH SALTZWEDEL, of 16 Schultzweg, St. Georg, Hamburg,
Germany, Upholsterer, do hereby declare the nature of this invention and in
what manner the same is to be performed to be particularly described and ascer-
tained in and by the following statement:-
This invention relates to a new or improved construction of brick which has
for its object to prevent, by its peculiar formation, the accidents which at present
frequently result from the falling or caving in of walls of buildings which are
not perfectly dry. It is a well known fact that mortar, as a rule, requires some
considerable time to become thoroughly dry, and, as a consequence, it will be
readily understood that newly erected walls in which the mortar, which alone
connects the bricks together, is not sufficiently dry and hard are liable to collapse
under extraneous influences or.sudden shocks.
And in order that our said invention may be properly understood we have
hereunto appended an explanatory sheet of drawings, whereon,
Fig. 1 is a longitudinal section, and
Fig. 2 a perspective view of a brick.
Fig. is a view of a wall built up with our bricks.
As shown on the drawings the characteristic feature of the invention consists
in providing a brick, on one of its sides or surfaces, with a number of cylindrical
or other projections a, whilst the opposite side is provided with an exactly similar
number of corresponding recesses b. When laying the bricks the projections of
the one are made to enter the recesses of the other brick below thereby forming
a solid and rigid connection between the bricks. In the construction shown
on the drawing the pins a and corresponding recesses are arranged in double
rows and are so shaped that when the projections are introduced into the corre-
sponding recesses there is enough space left for filling in a sufficient quantity of
mortar between the bricks and into their recesses.
Each brick is provided with at least eight projections and recesses so that the
bricks, when fitted together, can be properly superposed and fitted in all positions
that is to say whether they lie in longitudinal or cross positions. The method
of fitting the bricks together is clearly shown at Fig. 3.
As can be easily seen a wall built of such bricks as before described is much
stronger and firmer, when the mortar is in the wet condition, than ordinary
walls.
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
consider novel and desire to claim is:
-
Bricks provided on one side with a suitable number of projecting pins or
pegs (a) and on the opposite side with an equal number of corresponding re-

page_text: cesses (b), so that when the bricks are built together the pins (a) of the one
enter the recesses of the other, substantially as herein before described.
Dated this 4th day of October 1897
.
H. D. FITZPATRICK,
70 Wellington Street, Glasgow, Agent.