IMPROVED ANTI-FOULING AND PRESERVATIVE COMPOSITIONS FOR SHIPS' BOTTOMS ANDOTHER SUBMERGED
Year: 1880

page_text: LETTERS PATENT to William Renney, of No. 54, Cawley Road, Victoria Park,
in the County of Middlesex, for an Invention of "IMPROVED ANTI-FOULING
AND PRESERVATIVE COMPOSITIONS FOR SHIPS' BOTTOMS AND OTHER SUBMERGED

page_text: The manner of mixing is as follows:-I thoroughly dissolve No. 1 in part of
No. 3, and reduce Nos. 2, 5, and 6 to a fine powder, I then dissolve No. 8 in part of
No. 3. The ingredients being thoroughly powdered and dissolved as above are
incorporated and well stirred. During this operation Nos. 4 and 7 are added, the
whole being well stirred for some hours are then left for two days, after which 5
time they are again well stirred, and the composition is ready for use.
I do not confine myself to the exact quantities of the respective ingredients which
may be varied.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said William Renney in the Great Seal Patent Office on the 29th April
1881.
WILLIAM RENNEY, of No. 54, Cawley Road, Victoria Park, in the County of
Middlesex. "IMPROVED ANTI-FOULING AND PRESERVATIVE COMPOSITIONS FOR
SHIPS' BOTTOMS AND OTHER SUBMERGED STRUCTURES."
This Invention has for its object to provide improved anti-fouling and preservative
compositions for ships' bottoms and other submerged structures.
For this purpose I prepare an anti-fouling composition from creosote, asafoetida,
and worm wood, or such like bitter substance, as follows:-
The composition I form of,--
parts garnet shellac.
No. 1. 15
2. 4
"
3. 54
"
4. 21
"
5. 2
6. 1
"
7. 1½"
8.
9.
1
1/2 "
"
100 parts.
gum sandrach.
methylated spirits.
Venetian red.
chrome yellow.
gum mastic.
creosote.
asafoetida.
worm wood or such like bitter substance reduced to powder.
The manner of mixing is as follows:-I thoroughly dissolve No. 1 in part of
No. 3, and reduce Nos. 2, 5, and 6 to a fine powder; I then dissolve No. 8 in part
of No. 3. The ingredients being thoroughly powdered and dissolved as above are
incorporated and well stirred. During this operation Nos. 4, 7, and 9 are added,
and the whole is kept well stirred for some hours, the composition is then left for
about two days, after which time it is again well stirred, and the composition is
ready for use.
Before applying the above anti fouling and preservative composition to the
surface of a ship's bottom or other submerged structure I first coat the surface with
a priming composition.
2. 2
"
3. 50
"
4. 20
"
gum sandrach.
methylated spirits.
Venetian red.
-
80 parts.
The manner of mixing is as follows:-I thoroughly dissolve No. 1 in part of
No. 3, and reduce No. 2 to a fine powder, after which Nos. 1 and 2 and part of
No. 3 are placed in a properly constructed vessel for mixing; No. 4 is then added,
and all are stirred together, the remainder of No. 3 is then poured in. After
being thoroughly stirred the priming is ready for use.
The compositions are to be applied with a brush in the ordinary manner of
5 coating surfaces with paint.

page_text: Having thus described the nature of my Invention, and the manner of performing
the same, I would have it understood that I claim,-
The anti-fouling and preservative composition, substantially as herein before
described.
In witness whereof, I, the said William Renney, have hereunto set my hand
and seal, this Twenty seventh day of April, in the year of our Lord
One thousand eight hundred and eighty one.
WILLIAM RENNEY. (L.S.)