Year: 1899

page_text: Date of Application, 8th May, 1899
Complete Specification Left, 8th Feb., 1900-Accepted, 10th Mar,
1900
JAMES ROBINSON HATMAKER, Gentleman, 30, St. James's Square, London, S.W.,
do hereby declare the nature of this invention to be as follows:
I have invented a new paint for ships and iron and steel structures and other
purposes.
The pigment portion is composed of a mineral which is inert to chemical
reagents (such as talc or steatite) and of a metallic oxide or salt capable of form-
ing chemical combination with linseed oil (such as red or white lead or zinc white);
and the vehicle portion of linseed oil and varnish.
In preparing my paint I take 300 parts by weight of thoroughly dried, powdered
tale or steatite, and 183 parts by weight of red or white lead, or of red and white
lead, or of zinc white, or of zinc white and lead white
well together.
or
and
red-and mix them
Lamp black or any suitable coloring matter may also be added as desired.
I then mix some boiled linseed oil and linseed oil varnish together in the pro-
portion of three parts of oil to one of varnish.
Sufficient of this oil and varnish is then mixed with the dry ingredients to
give the mass a more or less liquid consistency desirable for grinding, and it is
all well ground-preferably four or five times, in a paint mill.
Then I add sufficient of a suitable dryer (such as manganese resinate or borate)
to give the paint the drying qualities desired; and more of the oil and varnish
mixture, to make the paint of proper consistency for use.
The talc or steatite before being used should be subjected to a temperature of
215-220° F. for from one to four hours, and thus thoroughly dried.
The lead, red or white, and zinc white may be used separately or mixed in any
desirable proportions. The red lead is most suitable for dark paints and tho
white and zinc white for light shades.
Boiled linseed oil facilitates the drying of the paint and its use is preferred to
raw linseed oil, although raw may be used.
I prefer linseed oil varnish for adding to the linseed oil to form the vehicle.
Such varnish is made by redissolving oxydized linseed oil in a suitable solvent.
My paint has unusual properties and great durability. In drying it forms
a continuous, tenacious, elastic coat which, if scraped, even after several years'
exposure, rolls up and comes off in chips rather than as a dry powder like other
paints. It is quite impervious to water and is especially suitable for ships and
for the protection of iron and steel.
Dated this 8th day of May 1899

page_text: Paint:
572
I, JAMES ROBINSON HATMAKER, Gentleman, 30, St. James's Square, London S.W.,
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:-
My invention is a new paint for ships, and iron and steel structures, and other
purposes.
The nigment portion of the same is composed of a mineral which is inert to
chemical reagents (such as talc or steatite) and of a metallic oxide or salt capable
of forming chemical combination with linseed oil (such as red or white lead or
zinc white) and the vehicle portion of linseed oil and varnish.
r
1.
In preparing my paint I take 300 parts by weight of thoroughly dried, powdered
talc or steatite, and 183 parts by weight of red or white lead, or of red and white
lead or of zinc white, or of zinc white and lead white red and mix them
or
and
well together. Lamp-black or any suitable coloring matter may also be added
if desired.
I then mix some boiled linseed oil and linseed-oil várnish together in the pro-
portion of three parts of oil to one of varnish.
Sufficient of this mixture of oil and varnish is then mixed with the pigment
ingredients to give the mass a more or less liquid consistency such as is desirable
for grinding, and it is all well ground-preferably four or five times in a paint
mill.
Then I add sufficient of a suitable dryer (such as manganese resinate or borate)
to give the paint the drying qualities desired; and more of the oil and varnish
mixture, to make the paint of proper consistency for use.
7
The talc, or steatite before being used should be subjected to a temperature of
215 220 degrees Fahrenheit, for from one to four hours, and thus thoroughly.
dried. This is important.
'
The lead, red or white, and zinc white may be used separately or mixed in any
desirable proportions. The red lead is most suitable for dark paints and the
white and zinc white for light shades.
Boiled linseed oil facilitates the drying of the paint and its use is preferred" to
raw linseed oil, although raw may be used.
I prefer, linseed-oil varnish for adding to the linseed oil to form the vehicle.
Such varnish is made by redissolving oxydized linseed oil in a suitable solvent:
My paint has unusual properties and great durability. In drying it forms
a continuous, tenacious; elastic coat which; if scraped, even after several years
exposure, rolls up and comes off in chips rather than as a dry powder like other
paints. It is quite impervious to water and is especially suitable for ships and
for the protection of iron and steel.
my said
Having now particularly described, and ascertained the nature of
invention, and in what manner the same is to be performed, I declare that what
I claim is:
. ! ..
!!
1. As a paint pigment, a mixture of talc or steatite and red
A-
or
and
white lead

page_text: 2. The hereinbefore described paint composed of talc or steatite, and red
or
and
or
and
white lead zinc white, and linseed oil and a suitable varnish, in sub-
stantially the proportions specified, either with or without the addition of coloring
matter or dryer.
Dated this Seventh day of February 1900.