The Manufacture of an Improved Waterproof Elastic Cement.
Year: 1895

page_text: Date of Application, 16th July, 1895
Complete Specification Left, 10th Apr., 1896-Accepted, 16th May, 1896
PROVISIONAL SPECIFICATION.
The Manufacture of an Improved Waterproof Elastic Cement.
I, WILLIAM WHYTE CABENA, of 8, Finsbury Square, in the County of
Loudon, Merchant, do hereby declare the nature of this invention to be as
follows:-
This invention relates to the manufacture of an improved cement which possesses
the advantages of being waterproof and elastic and which will not shrink or become
hard or crack from the effects of the atmosphere.
In manufacturing my improved cement I utilize what are known as paint skins,
that is to say, the skin or film which forms on the surface of paint and which
substance has hitherto been a waste product. The paint skins are boiled in
a vessel with a suitable oil preferably raw linseed oil in the proportions of about
one hundred pounds of the skins to about one gallon of oil, the proportions varying
according to the degree of dryness of the skins.
Care should be taken in boiling the skins not to employ too great a heat.
As soon as the skins and oil are thoroughly incorporated, which operation is
assisted by stirring, the liquid is allowed to slowly cool down and sufficient
pigment, such as yellow ochre, is added to obtain the consistency required and
ordinary lamp black is also added to obtain a good dark colour. The cement thus
prepared is ready to be packed in tins, carboys or the like for commerce.
Should it be found that the cement is lumpy, or not of uniform consistency, it
may be passed through a paint mill.
My improved cement is specially applicable for flashings, and for repairing
gutters and the like, stopping leaks and generally where an elastic water-tight
joint is required.
Dated this 16th day of July 1895
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.
The Manufacture of an Improved Waterproof Elastic Cement.
1, WILLIAM WHYTE CABENA, of 8, Finsbury Square, in the County of
London, Merchant, 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 cement which possesses
the advantages of being waterproof and elastic and which will not shrink or become
hard or crack from the effects of the atmosphere.
In manufacturing my improved cement 1 utilize what are known as paint-skins,
that is to say, the skin or film which forms on the surface of paint and which
substance has hitherto been a waste product. The paint-skins are boiled in
a vessel with a suitable oil, preferably raw linseed oil, in the proportions of about
one hundred pounds of the skins to about one gallon of oil, the proportions varying
according to the degree of dryness of the skins.

page_text: Care should be taken in boiling the skins not to employ too great a heat.
As soon as the skins and oil are thoroughly incorporated, which operation is
assisted by stirring, the liquid is allowed to slowly cool down and sufficient
pigment, such as yellow ochre, is added to obtain the consistency required and
ordinary lamp black is also added to obtain a good dark colour. The cement thus
prepared is ready to be packed in tius, carboys or the like for commerce.
Should it be found that the cement is lumpy, or not of uniform consistency, it
may be passed through a paint mill.
My improved cement is specially applicable for flashings, and for repairing
gutters and the like, stopping leaks and generally where an elastic water-tight
joint is required.
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 :-
A waterproof elastic cement manufactured by boiling paint-skins with linseed or
other suitable oil, allowing the mixture to cool, and then adding pigment to colour
the mixture and bring it to the required consistency, substantially as described.
Dated the 10th day of April 1896.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.