Improvements in and relating to the Manufacture of Material applicable as a Waterproof Covering for Roofs and other such like purposes, or as a Substitute for Glass.
Year: 1892

page_text: Date of Application, 29th July, 1892
Complete Specification Left. 29th May, 1893-Accepted, 8th July, 1893
TROVISIONAL SPECIFICATION.
Improvements in and relating to the Manufacture of Material
applicable as a Waterproof Covering for Roofs and other such
like purposes, or as a Substitute for Glass.
We, WALTER NOEL HARTLEY, of 36, Waterloo Road, Dublin, in the County
of Dublin, Ireland, Fellow of the Royal Society, Professor of Chemistry in the
Royal College of Science, Dublin, and WILLIAM EDMUND BRANDFORD
BLENKINSOP of 15, Earlsfield Road, Wandsworth Common, in the County of
Surrey, Manufacturing Chemist, do hereby declare the nature of this invention to
be as follows:-
This invention relates to the manufacture of a colourless waterpoof material
which may be used as a translucent roofing material or as a substitute for glass.
In carrying ont the invention we first prepare according to the processes described
in the Specifications of our former Patents Nos. 11629 of 1890 and 7251 of 1891 a
pale thickened drying oil which forms a practically colourless film when dry.
With this oil we cover and close up the meshes of wire gauze in any well known
mauner.
In order to protect the oil from the action of iron which gives it a yellow colour
we cover the wire gauze when made of iron with a film of tin or zinc or with
gelatine varnish, wax or other similar material.
In practice we find the use of paraffin wax to give good results. We melt the
paraffin wax in a suitable tank or bath and dip the wire-gauze into it. On removing
the gauze from the bath of paraffin wax the adhering film of liquid coats and
solidifies.
We then repeatedly dip the prepared wire-gauze into oil thickened by the
processes described in our aforesaid Specifications Nos. 11629 of 1890 and 7251 of
1891 and after each dipping the adhering film of oil is allowed to dry whereby we
obtain a colourless transparent waterproof material which does not darken or
become yellow on exposure to the air and which transmits white light.
Dated the 20th day of July 1902
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicants.
COMPLETE SPECIFICATION.
Improvements in and relating to the Manufacture of Material
applicable as a Waterproof Covering for Roofs and other such
like purposes, or as a Substitute for Glass.
We, WALTER NOEL HARTLEY, of 36, Waterloo Road, Dublin, in the County
of Dublin, Ireland, Fellow of the Royal Society, Professor of Chemistry in the
Royal College of Science, Dublin, and WILLIAM EDMUND BRANDFORD
BLENKINSOF, of 15, Earlsfield Road, Wandsworth Common, in the County of
Surrey, 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 a colourless waterproof material
which may be used as a translucent roofing material or as a substitute for glass.
In carrying out the invention we first prepare, according to the processes described
in the Specifications of our former Patents Nos. 11629 of 1890, and 7251 of 1891,
a pale thickened drying oil which forms a practically colourless film when dry.

page_text: For the purposes of the present invention we find it advantageous to employ a
fairly clear crude linseed oil and to warm it to about 190° Fahrenheit and blow air
or oxygen into it until the moisture is expelled and then add the solution of
manganese linoleate in the proportions stated in our said Specifications, and continue
blowing until the oil is thickened; or the oil is mixed with manganese linoleate
warmed to 190° or thereabouts and blown at once as any slight turbidity in
the oil is of little or no consequence so long as it is bleached and thickened. No
claim, however, is made in this Specification to the above described treatment of
the oil as it forms the subject of a separate application No. 9315 of 1893.
With
this oil we cover and close up the meshes of wire gauze in any well known
manner.
In order to protect the oil from the action of iron which gives it a yellow colour,
we cover the wire gauze when made of iron with a film of tin or zinc or with
varnish, gelatine, wax, or other similar material.
In practice we find the use of paraffin wax to give good results. We melt the
paraffin wax in a suitable tank or bath and dip the wire-gauze into it. On removing
the gauze from the bath of paraffin wax the adhering film of liquid cools and
solidifies.
We then repeatedly dip the prepared wire-gauze into oil prepared as above
stated, the adherent film of oil being allowed to dry after each dipping, whereby
we obtain a colourless translucent waterproof material which does not darken or
become yellow on exposure to the air and which transmits white light without
appreciable alteration in colour.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is:-
1. The manufacture of colourless waterproof material adapted to be used as a
translucent roofing material or as a substitute for glass by first covering or coating
wire-gauze with a film of tin, zinc, varnish, gelatine, wax or other similar material,
the wire-gauze so coated being afterwards repeatedly dipped into oil prepared in
the manner herein described, the adherent film of oil being allowed to dry after
each dipping substantially as, and for the purpose, hereinbefore described.
2. Colourless translucent waterproof material prepared in the manner substantially
as hereinbefore described.
This 1st day of May 1902
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicants.