IMPROVEMENTS IN THE MANUFACTURE OF PAINT
Year: 1884

page_text: I ALFRED JULIUS BOULT of 323 High Holborn, in the county of Middlesex,
Engineer do hereby declare the nature of the said invention for "IMPROVEMENTS
IN THE MANUFACTURE OF PAINT "
a communication from Stephen Bond of
Constantinople, Engineer to be as follows:-
:
This invention relates to the manufacture of black and other paints from
mineral bitumen.
. In carrying out the invention equal parts of liquid and stone bitumen, are
incorporated and slowly boiled together for 4 or 5 hours more or less,. then for
black paint it is reduced to a thin paste with spirits of turpentine. and boiled
linseed oil before it is cold; when cold it may be ground in an ordinary paint mill.
For coloured paints the bitumens are treated as above but with the addition of
the other ingredients for the colours required.
The foregoing are the chief points of the manufacture as communicated to me
by my foreign correspondent, but the working out of details can of course be
varied within proper limits.

page_text: COMPLETE SPECIFICATION.
I ALFRED JULIUS BOULT of 323 High Holborn in the County of Middlesex
Engineer do hereby declare the nature of this invention for "IMPROVEMENTS
IN THE MANUFACTURE OF PAINT" a communication from Stephen Bond of
Constantinople Engineer 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 black and other paints from
mineral bitumen. The details of the manufacture may vary to suit circumstances
or special requirements but I will describe the manufacture of three different
kinds of paints from the bitumen.
No. 1. This is a black composition paint and is especially useful for painting
metals and woods where exposed to the action of the atmosphere on account of its
"anti-oxidizing" qualities, it may be made as follows:-
Of stone hard or liquid bitumen take 1 (one) cwt melt and slowly boil for
5 hours then add one gallon of boiled linseed oil and boil for another hour stirring
well during the hours then strain through a fine sieve, while cooling add
5 gallons of spirits of turpentine mixing them well together, then grind the above
ingredients in a paint mill adding a little spirits of turpentine while grinding to
bring them to the consistency of a thin paste. Only spirits of turpentine should
be employed to thin this paint for use.
No 2 is a coffee colored anti oxidizing composition paint for preventing sweating
and dampness on the insides of iron ships or other place when there is no
ventilation and is otherwise similar to N° 1 and may be used for the same
purposes.
Of stone or hard or liquid bitumen take 1 (one) cwt melt and slowly boil for
5 hours stirring well during that time, then add 20 lbs of powdered resin and
1 gallons of boiled linseed oil and boil for one hour more, stirring the mixture
the while, then strain through a fine sieve. When strained and while cooling
add 1 (one) cwt of the best red lead, 28 lbs of litharge and 10 gallons of spirits
of turpentine stir and mix the above ingredients well together, then grind in a
paint mill using spirits of turpentine while grinding to bring it to a consistency of
paint.
In using the above no oils must be added when thinning for use.
For other colors use with the foregoing N° 2 white lead, dry green, portland
cement, white silica &c in proportion to color required..
No 3 may be used as an anti-fouling composition paint for ship bottoms, or iron
or wood, immersed in the sea or other waters, also for the preservation of iron or
wood railway sleepers and for similar purposes, and may be manufactured as
follows:-
.
.
Take of West India or other aloes 1 (one) cwt, pound small as peas put them in
a shallow iron dish or pan add boiled linseed oil, sufficient to cover aloes and let
it stand or remain in the dish with the oil for one week, then grind the aloes in a
paint mill adding just enough boiled linseed oil necessary for grinding into a thick
Daste.

page_text: Then take of stone hard or liquid bitumen 1 (one) cwt, melt and slowly boil in
a large kettle or equivalent for 5 hours stirring. it well during that time then add
20 lbs of powdered resin, add also the aloes paste and 1 gallons of boiled linseed
oil, boiling the whole slowly for another hour and stirring well then strain through
a sieve and while cooling add 1 (one) cwt of the best red lead, 28 lbs of litharge,
cwt of flour arsenic, and 8 gallons of spirits of turpentine mixing the whole
well together and when cold grind the above ingredients in a paint mill using
only spirits of turpentine to bring them to the consistency of paint. No oils to
be used.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed as communicated to
me by my foreign correspondent I declare that what I claim is
1. The employment of mineral bitumen as a base in the manufacture of paint.
2. The herein described manufacture of paint having mineral bitumen as a base
prepared substantially in the manner and proportions and of the ingredients set
forth under N° 1.
J
3. The herein described manufacture of paint having mineral bitumen as a base
prepared substantially in the manner and proportions and of the ingredients set
forth under N° 2.
4. The herein described manufacture of "anti-fouling composition paint" having
mineral bituinen as a base prepared substantially in the manner and proportions
and of the ingredients set forth under N° 3.