An Improved Composition for Flooring or Covering Iron Bridges, Arches, Tanks, and other Structures.
Year: 1892

page_text: Date of Application, 19th Nov., 1892
Complete Specification Left, 12th Aug., 1893-Accepted, 9th Sept., 1893
PROVISIONAL SPECIFICATION.
An Improved Composition for Flooring or Covering Iron Bridges,
Arches, Tanks, and other Structures.
I HAMOR LOCKWOOD of Chapel Walks Manchester in the County of Lancaster
Manufacturing Chemist, do hereby declare the nature of this invention to be as
follows:-
This invention relates to the manufacture of an improved composition for flooring
or covering iron bridges arches, tanks and other structures to resist water and
prevent dripping.
In the ordinary methods of preparing asphalte floors &c. to resist water certain
pitches usually softened with a crude tar oil (the quantity of the latter varying
according to the kind and purpose of floor &c. required, and the temperature of the
weather at the time the work is done) are mixed hot with dry sand chalk and lime,
fine flue dust or moulders sand, in certain proportions well known to the trade,
according to the class of work required.
Now according to my invention, in place of the mineral substances above
enumerated I use the burnt oxide of iron obtained in the manufacture of sulphuric
acid from the spent oxide resulting from the purification of coal gas. Although I
find it can be used with all the pitches ordinarily employed in asphalting, I prefer
to use it with anthracene pitch softened to the proper consistency with anthracene oil
Sp. Gr. 110, and I find that a good mixture for the above purposes is three parts
by weight of the softened pitch, and two parts of the burnt oxide.
Dated this 18th day of November 1892.
GEO. DAVIES & SON,
4, St. Ann's Square, Manchester, Agents for the Applicant.
COMPLETE SPECIFICATION.
An Improved Composition for Flooring or Covering Iron Bridges,
Arches, Tanks, and other Structures.
I HAMOR LOCKWOOD of Chapel Walks Manchester, in the County of Lancaster,
Manufacturing Chemist, 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 relates to the manufacture of an improved composition for flooring
or covering iron bridges arches, tanks and other structures to resist water and
prevent dripping.
In the ordinary methods of preparing asphalte floors &c. to resist water certain
pitches usually softened with crude tar oil (the quantity of the latter varying
according to the kind and purpose of floor &c. required, and the temperature of the
weather at the time the work is done) are mixed hot with dry sand chalk and lime,
fine flue dust or moulders sand, in certain proportions well known to the trade,
according to the class of work required.
Now according to my invention, in place of the mineral substances above
enumerated I use the burnt oxide of iron obtained in the manufacture of sulphuric
acid from the spent oxide resulting from the purification of coal gas. Although 1
find it can be used with all the pitches ordinarily employed in asphalting, I prefer
to use it with anthracene pitch softened to the proper consistency with anthracene
oil Sp. Gr. 1-10, and I find that a good mixture for the above purposes is three
parts by weight of the softened pitch, and two parts of the burnt oxide.

page_text: 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
claim is :-
The improved composition for flooring or covering iron bridges, arches, tanks,
and other structures consisting of the combination of burnt oxide of iron with
anthracene pitch softened to the proper consistency with anthracene, oil substantially
as hereinbefore described.
Dated this 11th d
1000
GEO. DAVIES & SON,
4. St. Ann's Square, Manchester, Agents for the Applicant.