An Improved Artificial Asphalte.
Year: 1890

page_text: Date of Application, 29th Aug., 1890
Complete Specification Left, 29th May, 1891-Accepted, 15th Aug., 1891
PROVISIONAL SPECIFICATION.
An Improved Artificial Asphalte.
We, HERBERT PAUL WILLIAMS, and EDWARD GRAHAM WILLIAMS,
trading as Pilkington & Co., of Monument Chambers, King William Street, in
the City of London, Asphalte Manufacturers, do hereby declare the nature of
the said invention to be as follows:-
The object of this invention is to produce an asphalte which will resist the
action of acids such as sulphuric, hydrochloric, or nitric for example, and the
invention consists in mixing silver sand, or other sand of a similar nature, with
pitch from which all creosote, or creosote salts, have been removed. We melt the
pitch in a cauldron and add the sand thereto gradually while stirring; and when
the required proportion of sand has been incorporated with the pitch, we cast the
mass into blocks of suitable shape ready for future use. When it is required to
lay or apply the asphalte, we melt the aforesaid blocks with a further quantity of
the same kind of pitch, and stir in more silver sand until the required consistency
is attained. The material so prepared, is then laid or applied in the same way as
ordinary asphalte.
Dated this 29th day of August 1890.
COMPLETE SPECIFICATION.
An Improved Artificial Asphalte.
We, HERBERT PAUL WILLIAMS, and EDWARD GRAHAM WILLIAMS,
trading as Pilkington & Co., of Monument Chambers, King William Street, in
the City of London, Asphalte Manufacturers, 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, that is to say :-
The chief object of this invention is to produce an asphalte which will resist the
action of acids such as sulphuric, hydrochloric, or nitric for example, and the.
invention consists in mixing silver sand, or other sand of similar nature, with
pitch from which all creosote or creosote salts have been removed, in the proportion
of say 60 per cent. of sand, to 40 per cent. of pitch for example.
In order to effect the mixture of these ingredients we melt the pitch in a
cauldron, and add the sand thereto gradually while stirring, and when the required
proportion of sand has been incorporated with the pitch we cast the mass into
blocks of suitable shape and size ready for future use. When it is required to
lay or apply the asphalte, we melt the aforesaid blocks with a further quantity of
the same kind of pitch, and stir in more silver sand, or sand of similar nature,
until the required consistency is attained. The material so prepared is then laid or
applied in the same way as ordinary asphalte.
Our improved artificial asphalte is especially suited for the lining and flooring of
rooms containing electric batteries, for the construction of tanks to contain acids,
and for other purposes where it is desired to resist the action of acids; but we do
not limit the application of the improved material to such cases as it is applicable
to other purposes where a fine impervious lining or coating of asphalte is required.
D
127

page_text: 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
claim is :-
The improved artificial asphalte composed of a mixture of silver sand, or other
sand of a similar nature, and pitch from which all creosote or creosote salts have
been removed, substantially as hereinbefore described.
Dated this 20th day of M-1001
H. P. WILLIAMS.
E. G. WILLIAMS.
Per W. H. Beck,
115, Cannon Street, London, Agent.