A New or Improved Waterproof Material for Bridges, Viaducts, Flat Roofs, Footways, Cycle Tracks, and the like.
Year: 1898

page_text: Date of Application, 23rd Dec.,
1000
Complete Specification Left, 25th Sept., 1899-Accepted, 18th Nov., 1899
Complete Specification Left, 25th Sept., 1899-Accepted, 18th Nov., 1899
PROVISIONAL SPECIFICATION.
A New or Improved Waterproof Material for Bridges, Viaducts, Flat
Roofs, Footways, Cycle Tracks, and the like.
I, JONATHAN JACKSON INGHAM, of Midland Asphalte Works, Valley Road, in
the City of Bradford, Asphalter and Contractor, do hereby declare the nature of
this invention to be as follows:
This invention relates to a new or improved waterproof material or composition
for bridges, viaducts, flat roofs, footways, cycle tracks or the like, and its object
is to provide an impermiable and durable material or composition for this purpose.
To carry out my invention I thoroughly incorporate the following substances
in approximately the following proportions:
Four parts rock asphalt.
Two parts bitumen.
One part Stockholme tar.
One part Norwegian tar.
One part Archangel pitch.
The above are all boiled together to incorporate them and to bring them to the
proper consistancy. I may add a suitable quantity of sand or grit and the mix-
ture may be laid or spread on to one, two or more layers of canvas, brattice cloth
or other suitable material and a covering of canvas, brattice cloth or the like may
be applied.
Dated this 23rd day of December 1898
A New or Improved Waterproof Material for Bridges, Viaducts, Flat
Roofs, Footways, Cycle Tracks, and the like.
I, JONATHAN JACKSON INGHAM, of Midland Asphalt Works, Valley Road, in
the City of Bradford, Asphalter and Contractor, 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 a new or improved waterproof material or composition
for bridges, viaducts, flat roofs, footways, cycle tracks and the like, and its object
is to provide an impermiable and durable material or composition for this purpose.
'
077

page_text: To carry out my invention I thoroughly incorporate the following substances
in approximately the following proportions:
Four parts rock asphalt.
Two parts bitumen."
One part Stockholme tar.
One part Norwegian tar.
One part Archangel pitch.
The above are all boiled together to incorporate them and to bring them to the
proper consistency. I may add a suitable quantity (ten per cent. more or less)
of sand or grit and the mixture is laid or spread on to one, two or more layers
of canvas, brattice cloth or other suitable material and a covering of canvas, brat-
tice cloth or the like is applied.
The surface to be rendered water-proof is covered with a coating or coatings
composed of sheets of material prepared in this way and the sheets may be left
exposed as the substance between acts as a preservative, or they may be covered
with any desired covering, as for instance, in the case of bridges by paving or
macadam.
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
An improved waterproofing material or covering consisting of one or more layers
of composition constituted substantially as specified, in combination with one or
more layers of canvas or the like above and below the composition.
Dated this 22nd day of September 1899
Dated this 22nd day of September 1899.
DRACUP & NOWELL,
Patent Agents, Bradford.
DRACUP & NOWELL,
Patent Agents, Bradford.