An Improved Composition, and the Production therefrom of Blocks, Slabs, Vessels, or like Articles, more especially intended for the Production of Paving Blocks or Slabs, or Conduits for Electrič Cables.
Year: 1894

page_text: Date of Application, 7th Aug., 1894
Complete Specification Left, 7th May, 1895-Accepted, 8th June, 1895
PROVISIONAL SPECIFICATION.
An Improved Composition, and the Production therefrom of Blocks,
Slabs, Vessels, or like Articles, more especially intended for the
Production of Paving Blocks or Slabs, or Conduits for Electrič
Cables.
I CARL JOST of 16 Adlerflychtplatz Frankfurt on the Maine in the Empire of
Germany Commercial Agent do hereby declare the nature of this invention to be
as follows:
This invention relates to the production of a composition to be employed in the
manufacture of paving blocks, pipes, vessels, and other like articles as hereinafter
explained. The said composition consists essentially of asphalt, slate, and graphite
to which petroleum residue or other hydrocarbon is added.
In the manufacture of blocks or slabs for paving for example the process is
conducted as follows viz: The materials are taken in or about the following
PROVISIONAL SPECIFICATION.
An Improved Composition, and the Production therefrom of Blocks,
Slabs, Vessels, or like Articles, more especially intended for the
Production of Paving Blocks or Slabs, or Conduits for Electric
Cables.
I CARL JOST of 16 Adlerflychtplatz Frankfurt on the Maine in the Empire of
Germany Commercial' Agent do hereby declare the nature of this invention to be
as follows:
This invention relates to the production of a composition to be employed in the
manufacture of paving blocks, pipes, vessels, and other like articles as hereinafter
explained. The said composition consists essentially of asphalt, slate, and graphite
to which petroleum residue or other hydrocarbon is added.
In the manufacture of blocks or slabs for paving for example the process is
conducted as follows viz: The materials are taken in or about the following
proportions namely
12 parts by weight of purified Trinidad asphalt.
10
"
9
."
"
finely pulverised slate.
8
"
وو
"
"
graphite:
2.50"
25
"
"
"
"
وو
petroleu:n residue.
asphalt in powder:
These materials are mixed together as next hereinafter described. The petroleum
residue being heated in a boiler to about 80 degrees Centigrade the graphite
is introduced and stirred in until these two ingredients are intimately mixed.
The finely pulverised slate is then added and the stirring is continued until a dry
homogeneous sandy compound, results.
The purified Trinidad asphalt being heated and liquefied, at the same time in a
separate vessel is now mixed with this compound being stirred in until a com-
position resembling caoutchouc is obtained. The asphalt in powder is then added
to this composition and intimately mixed therewith by stirring. The resulting
composition after being allowed to cool to a certain extent is placed in moulds and
subjected to a somewhat powerful pressure (say about 120 kilos. per square
centimetre):
The moulded blocks or slabs thus obtained are extremely durable when employed
in the construction of pavements.
:
The graphite combines very intimately with the oil and prevents it from
evaporating whilst the slate being a bad conductor of heat, retards the action of
external heat or cold and prevents the pavement from softening or cracking.
The composition may be employed in the manufacture of vessels or receptacles
and other like articles.
The proportions hereinbefore, indicated may be changed according to the quality
or nature of the materials employed and, in place of the petroleum residue other
suitable liquid hydrocarbon may be employed.
Dated this 7th day of August 1894.
JOHNSONS & WILLCOX,
47, Lincoln's Inn Fields, London, W.C., Agents.

page_text: conduits, and the like and consisting of or containing asphalt, graphite, slate
and petroleum residue or equivalent liquid hydrocarbon substantially as hereinbefore
described.
2. The manufacture of paving blocks slabs conduits and other articles by
incorporating asphalt, graphite slate and petroleum residue or equivalent hydro-
carbon and subjecting the composition to pressure in moulds substantially as
hereinbefore described.
3. As new articles of manufacture paving blocks, slabs, conduits or other
analogous articles made of the composition substantially as herein before described.
Dated this 7th day of May 1895.
JOHNSONS & WILLCOX,
47, Lincoln's Inn Fields, London, W.C., Agents.
JOHNSONS & WILLCOX,
47, Lincoln's Inn Fields, London, W.C., Agents.