A New or Improved Artificial Asphalt.
Year: 1889

page_text: Date of Application, 17th Dec., 1889
Complete Specification Left, 17th Sept., 1890-Accepted, 13th Dec., 1890
PROVISIONAL SPECIFICATION.
A New or Improved Artificial Asphalt.
I, CASTLE SMITH, of 54 Fleet Street, in the City and County of London, Gentle-
man, do hereby declare the nature of this invention, as communicated to me from
abroad by Gustav Peter Vith Nielsen, of Frederiksberg, in the Kingdom of
Denmark, Merchant and Chemist, to be as follows:-
This invention relates to a new or improved artificial asphalt which unites, with the
advantages and cheapness of the artificial asphalt hitherto known, the good qualities
of the natural asphalt, and is free from the defects of the other artificial asphalt,
which becomes too soft in warm weather and too brittle in cold weather; so that it
can be used for street-paving of all kinds and can be employed in all the circumstances
in which the former artificial asphalt was made use of.
The new artificial asphalt can be made in different ways according to the purpose
for which it is required, it consists however chiefly of a mixture of resin, tar, powdered
chalk, and rubbish (or chippings), to which is added, according to circumstances, a
little natural asphalt.
For the nurse of naving streets (roads) a composition of
A still better result is obtained by the addition of a little natural asphalt.
The above composition is only quoted as an example.
As a matter of course the percentage of the different materials used in the com-
position of the new artificial asphalt may vary considerably according to the various
purposes for which the asphalt is required.
The manufacture of the new artificial asphalt is a very simple process, since a
vessel only of any kind is required in which the resin and tar can be melted and
stirred together, after which the natural asphalt, and the other constituents (chalk,
rubbish, etc.) are added, and brought into perfect consistency with the molten materials
by stirring.
The manufactured artificial asphalt may then be cast into blocks, or used
ATIV GTICIOLI
την παρρ
COMPLETE SPECIFICATION.
A New or Improved Artificial Asphalt.
I, CASTLE SMITH, of 54 Fleet Street, in the City and County of London, Gentle-
man, do hereby declare the nature of this invention and in what manner the same
is to be performed, as communicated to me from abroad, by Gustav Peter Vith
Nielsen, of Frederiksberg, in the Kingdom of Denmark, Merchant and Chemist,
to be particularly described and ascertained in and by the following statement:
This invention relates to a new or improved artificial asphalt which unites, with the
advantages and cheapness of the artificial asphalt hitherto known, the good qualities
of the natural asphalt, and is free from the defects of the other artificial asphalt,
which becomes too soft in warm weather, and too brittle in cold weather; so that it

page_text: can be used for street-paving of all kinds and can be employed in all the circumstances
in which the former artificial asphalt was made use of.
The new artificial asphalt can be made in different ways according to the purpose
for which it is required, it consists however chiefly of a mixture of resin, tar, powdered
chalk, and rubbish (or gravel or chippings) to which is added, according to circum-
stances, a little natural asphalt. In some cases however the tar is not required, the
composition consisting simply of resin, powdered chalk, and rubbish, gravel or
chippings.
will give a satisfactory result.
A still better result is obtained by the addition of a little natural asphalt in the
proportion of from 2 to 5 per cent.
The above composition is only quoted as an example.
As a matter of course the percentage of the different materials used in the com-
position of the new artificial asphalt may vary considerably according to the various
purposes for which the asphalt is required.
The manufacture of the new artificial asphalt is a very simple process, since a
vessel only of any kind is required in which the resin and tar can be melted and
stirred together, after which the natural asphalt, and the other constituents (chalk,
gravel, etc.) are added, and brought into perfect consistency with the molten materials
by stirring.
The manufactured artificial asphalt may then be cast into blocks, or used
immediately.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
An artificial asphalt consisting of resin, powdered chalk, and rubbish such as
gravel with or without an addition of tar and natural asphalt; which said artificial
asphalt is manufactured by first melting the resin, and afterwards adding thereto the
tar and natural asphalt, when used, till they form a molten mass, whereupon the
chalk and gravel are added and stirred up with the molten mass, the proportions of
the different materials used in the composition being varied according to the purpose
for which the artificial asphalt thus made is required substantially as described.
FAILGUGU
FALLGU
$6
CASTLE SMITH,
Invention" Office, 54, Fleet Street, London, E.C.
CASTLE SMITH,
Invention" Office, 54, Fleet Street, London, E.C.