A New or Improved Composition for Preventing the Formation or Accumulation of Moisture, Nitre, or Acids in or upon Walls and other like Surfaces, said Composition being capable of being Made into Artificial Stones or Bricks for Building Purposes.
Year: 1895

page_text: Date of Application, 14th Dec., 1895-Accepted, 15th Feb.. 1895
COMPLETE SPECIFICATION.
A New or Improved Composition for Preventing the Formation or
Accumulation of Moisture, Nitre, or Acids in or upon Walls and
other like Surfaces, said Composition being capable of being
Made into Artificial Stones or Bricks for Building Purposes.
I, FRANZ LUDEWIG of 19 Feldstrasse, Dusseldorf, Germany, Merchant, 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 has for its object to provide a composition for preventing the
formation or accumulation of moisture, nitre, or acids in or upon walls, partitions,
coverings and such like and for drying such damp walls, partitions, and
coverings.
The composition consists essentially of a carboniferous powder in combination
with a binding agent and water, with or without the addition of sand. The com-
position can be applied like mortar either once or several times on the surface of
the damp wall or the like.
The carboniferous powder may consist of pulverized charcoal, bone black, coal,
brown coal or lignite, or coke, and the binding agent may be cement, santorine
earth, lime, siliceous earth or kieselgubr, powdered peat or such like substance.
The sand if used is preferably well washed.
For practical usefulness the following mixtures are recommended.
(1) 35% of charcoal and 65% of cement.
(2) 30% charcoal, 40% cement and 30% sand.
(3) 25% bone black, 45% cement, 30% sand.
(4) 10% charcoal powder, 10% ivory black, 10% powdered brown coal,
10% sand and 60% lime.
(5) 15% powdered charcoal, 5% powdered coal, 5% powdered brown coal,
10% coke, 60% cement and 5% kieselguhr.
A very good water tight composition is made as follows
11
(6) 60% pulverized coke, 20% pulverized charcoal and 20% of cement mixed
with wood tar instead of water.
The last composition is particularly applicable for new buildings where ice rooms
are built in lieu of cellars.
The above compositions can be made into bricks or blocks for building purposes.
I do not confine myself to the precise mixtures and proportions herein before
given as they are merely set forth by way of example.
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 I
consider novel and desire to claim is:-
1. A composition for preventing the accumulation of moisture or the formation
of nitre or acids in and upon walls, partitions, coverings and such like, and also for
drying walls, partitions and coverings exhibiting moisture or nitre or acids, con-
sisting a carbonaceous powder, a binding agent (such as cement, santorine earth.
lime, siliceous earth, or powdered peat) and water or an aqueous liquid especially
wood tar, with or without the addition of sand; said composition being besmeared

page_text: over or laid on the surface in the same manner as mortar, substantially as
herein before set forth.
2. Artificial building blocks or bricks made of a composition of carbonaceous
powder, a binding agent, and water or aqueous liquid, mixed together in or about
the proportions hereinbefore specified.
Deted this 19th der of December 1895
H. D. FITZPATRICK,
70 Wellington Street, Glasgow, Agent.