Improvements in Bituminous Asphaltic Composition for Paving and other purposes.
Year: 1899

page_text: Date of Application, 18th Aug., 1899
Complete Specification Left, 23rd Mar., 1900 -Accepted, 19th May, 1900
PROVISIONAL SPECIFICATION.
Improvements in Bituminous Asphaltic Composition for Paving
and other purposes.
I, HENRY DANIEL BLAKE, of 6, Mount Adon Park, Lordship Lane, London, S.E.,
Inventor, do hereby declare the nature of this invention to be as follows:-
My invention relates to the manufacture of a bituminous asphaltic pavement
and in carrying out my invention I employ natural mineral bitumen, fine sand
or limestone powder and mineral rock asphalt powder which are thoroughly in-
corporated together in proportions as may be desired and according to require-
ments.
My improved composition may be used in three different ways viz.:.
1. As a compressed bituminous asphaltic pavement.
-
For this purpose the materials when properly mixed in suitable proportions
are heated in a roaster of any suitable construction to a semi-plastic state and
then transported to the works where the composition is laid down on a concrete
or other suitable foundation and raked over to the desired thickness and rolled
with a light roller and afterwards with a heavy roller until the pavement is cold.
2. As a mastic bituminous asphaltic pavement.
For this purpose the same materials as above referred to are mixed in a suitable
cauldron but the said material is rendered more liquid by an extra addition of
the natural mineral bitumen. The composition is then made into blocks weigh-
ing about 56 lbs. each and afterwards, when cold transported to the works broken
up and remelted in suitable cauldrons and laid in a liquid state on concrete
foundations. This composition is equally suitable for roofing, flooring, foot-
paths, damp courses and other purposes.
3. As block bituminous asphaltic pavement.
The same material as for the No. 2 above and made into blocks similar to
wood paving blocks which blocks may be formed with a groove.

page_text: same is to be performed, to be particularly described and ascertained in and by
the following statement:-
My invention relates to the manufacture of bituminous asphaltic pavements,
and in carrying out my invention I employ natural mineral bitumen, fine sand,
or limestone powder and mineral rock asphalt powder which are thoroughly in-
corporated together in proportions as may be desired and according to require-
ments.
My improved composition may be used in three different ways, viz.:--
(1) As a compressed bituminous asphaltic pavement.
For this purpose the materials when properly mixed in suitable proportions
are heated in a roaster of any suitable construction to a semi-plastic state and
then transported to the works where the composition is laid down on a concrete
or other suitable foundation and raked over to the desired thickness, and rolled
with a light roller, and afterwards with a heavy roller until the pavement is cold.
(2) As a mastic bituminous asphaltic pavement.
For this purpose the same materials as above referred to are mixed in a suit-
able cauldron but the said materials are rendered more liquid by an extra addi-
tion of the natural mineral bitumen. The composition is then made into blocks
weighing about 56 lbs. each and afterwards, when cold, transported to the works,
broken up and remelted in suitable cauldrons, and laid in a liquid state on con-
crete foundations. This composition is equally suitable for roofing, flooring,
footpaths, damp courses and other purposes.
(3) As block bituminous asphaltic pavement.
The same materials are used as for the number two above, and made into
blocks similar to wood paving blocks, which blocks may be formed with a groove
around each block to form a joint when filled in with bituminous cement or
other material used for the purpose.
The composition used when an additional quantity of natural mineral bitumen
is not requisite consists preferably as follows:-
Natural mineral bitumen
13
100
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:
-
1. In the construction of bituminous asphaltic pavements, the employment of
natural mineral bitumen, fine sand and mineral rock asphalt powder all thoroughly
incorporated and afterwards heated to a plastic state and laid down substantially
as described.
2. In the construction of bituminous asphaltic pavements, the employment
of natural mineral bitumen, limestone powder and mineral rock asphalt powder
all thoroughly incorporated and afterwards heated to a plastic state and laid down
substantially as described.
3. In the construction of mastic bituminous asphaltic pavements the employ-
ment of an additional quantity of natural mineral bitumen, fine sand and
mineral rock asphalt powder all thoroughly incorporated and afterwards heated
to a plastic state and made into blocks and when cold broken up and remelted in
suitable cauldrons and laid in a liquid state on concrete foundations substan-
tially as described.
4. In the construction of mastic bituminous asphaltic pavenients, the employ-
ment of an additional quantity of natural mineral bitumen, limestone powder and
mineral rock asphalt powder all thoroughly incorporated and afterwards heated

page_text: to a plastic state and made into blocks and when cold broken up and remelted
in suitable cauldrons and laid in a liquid state on concrete foundations, substan-
tially as described.
5. In the manufacture of block bituminous asphaltic pavements, the employ-
ment of an additional quantity of natural mineral bitumen, fine sand and
mineral rock asphalt powder all thoroughly incorporated and afterwards heated
to a plastic state and made into blocks either grooved or otherwise substantially
as described.
6. In the manufacture of block bituminous asphaltic pavements the employ-
ment of an additional quantity of natural mineral bitumen, limestone powder
and mineral rock asphalt powder all thoroughly incorporated and afterwards
heated to a plastic state and made into blocks either grooved or otherwise sub-
stantially as described.
1
00 T
1000