PREPARATION AND APPLICATION OF COMPOSITIONS FOR PROTECTING to be as follows:- IRON SURFACES FROM DAMP AND CORROSION
Year: 1884

page_text: I, JOHN BRYDSON of No. 9 Beaumont Street in the Town of Kingston-upon-Hull
in the county of the same Town, Painter, do hereby declare the nature of my
invention for "PREPARATION AND APPLICATION OF COMPOSITIONS FOR PROTECTING
to be as follows:-
IRON SURFACES FROM DAMP AND CORROSION
"
My invention relates to compositions applicable to iron surfaces, particularly
those in the cabins or compartments of vessels, to protect them from damp and
corrosion, these compositions, when applied, serving as a ground for painting or
other decoration. For this purpose, I employ three compositions, which are
successively applied to the surface that is to be protected, this surface being in the
first place carefully cleared from rust and scale.
The first composition employed is a varnish consisting of Linseed oil, Magnesia,
Sugar of Lead, and Litharge, heated and mixed while hot with a solution of Resin
in Turpentine. After the mixture has cooled, Zinc oxide and Hydrate of Lime are
added under agitation, and the whole is,allowed to stand several days before use.
The next composition applied is a liquid gum, consisting of Alcohol, Copal gum,
Dragons blood, Sugar of Lead, Bees' wax and Turpentine, compounded together in
several stages, and allowed to stand for several weeks before use.
The final composition consists of carefully sifted wood powder, calcined wood
powder and umber made up with water and hydrate of lime, and stove dried.
This can be at once applied over the gum, the surface being then ready for receiving
paint or other decoration.
ABEL & IMRAY,
Agents for the Applicant,
28, Southampton Buildings,
London, W.C.

page_text: i
I, JOHN BRYDSON, of N° 9 Beaumont Street in the Town of Kingston-upon-Hull
in the County of the same Town, Painter, do hereby declare the nature of my
invention for "PREPARATION AND APPLICATION. OF COMPOSITIONS FOR PROTECTING
IRON SURFACES FROM DAMP AND CORROSION" and in what manner the same is to
be performed to be particularly described and ascertained in and by the following
statement:—
My invention relates to compositions applicable to iron and steel surfaces,
particularly those in the cabins or compartments of vessels, to protect them from
damp and corrosion, these compositions when applied serving as a ground for
painting or other decoration. For this purpose I employ three compositions, which
are successively applied to the surface that is to be protected, this surface being in
the first place carefully cleared from rust and scale.
The first composition applied is a varnish consisting of about 2 gallons Linseed
oil, 3/4 lbs. Magnesia, 1/2 lb. Sugar of Lead and 2 lbs. Litharge, heated and mixed
while hot with a solution about 3 lbs Resin in 1 gallon of Turpentine. After the
mixture has cooled about 7 lbs. of Zinc oxide and 1/2 lbs. of Hydrate of Lime are
added under agitation, and the whole is allowed to stand several days before use.
The next composition applied is a liquid gum consisting of about 2 gallons of
Alcohol, 4 lbs Copal gum, 2 oz. Dragons blood, 1/2 lb Sugar of Lead, 2 oz.-of-Bees-
wax and 2 gallons of Turpentine. These materials are compounded together in
several stages as follows: About half of the Alcohol and 'the copal gum are fused
together by heating; the dragons blood and the sugar of lead are separately fused
with the other half of the alcohol and then these products are mixed with the bees
wax and turpentine and the mixture is allowed to stand for several weeks before use.
The final composition or grounding consists of about 14 lbs. of carefully sifted
wood Powder, 7 lbs. of calcined wood powder and 2lbs. of umber made up with
water and 21/2 lbs. of hydrate of lime. The sifted wood powder and the umber are
agitated with water and the mixture being allowed to settle, the liquid is poured
off and the hydrate of lime and calcined wood powder are added to the residue and
the whole is stove dried. This composition can be at once applied over the gum,
the surface being then ready for receiving paint or other decoration.
. I have stated proportions of 'the materials which give good results; these
proportions may however be somewhat varied.
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
1, The herein described method of protecting iron or steel surfaces from damp
and corrosion and preparing them for reception of paint or decoration by the.
application successively of three compositions substantially as set forth.

page_text: 2. The manufacture of the first composition or varnish substantially as
described.
3, The manufacture of the second composition or liquid gum, substantially as
berein described.
4, The manufacture of the final composition or grounding, substantially as
herein described.