A NEW OR IMPROVED COMBINED ANTI-FOULING AND PRESERVING COMPOSITION APPLICABLE TO SHIPS' BOTTOMS AND OTHER SUBMERGED AND SUBTERRANEAN SUBSTANCES
Year: 1883

page_text: LETTERS PATENT to James Harold Barry Lieutenant R.N.R of Clapton in the
County of Middlesex for an Invention of A NEW OR IMPROVED COMBINED
ANTI-FOULING AND PRESERVING COMPOSITION APPLICABLE TO SHIPS' BOTTOMS
AND OTHER SUBMERGED AND SUBTERRANEAN SUBSTANCES
PROVISIONAL SPECIFICATION left by the said James Harold Barry at the
Office of the Commissioners of Patents on the 16th January 1883.
JAMES HAROLD BARRY Lieutenant, R,N.R of Clapton in the County of Middlesex
፡፡ A NEW OR IMPROVED ANTI-FOULING AND PRESERVING COMPOSITION APPLICABLE
TO SHIPS' BOTTOMS AND OTHER SUBMERGED AND SUBTERRANEAN SUBSTANCES
This Invention relates more particularly to the preservation of Ships' bottoms
from corrosion and fouling
For this purpose I take waste leather of any kind such as old boots or shoes and
after thoroughly disintegrating the same I boil it and add thereto a weak solution
of muriatic or hydrochloric acid Or instead of boiling the leather I may treat it
with steam in conjunction with such acid solution in order to reduce it to a
magma I then express the acid and moisture therefrom and after drying it I
reduce it to a powder and mix such powder with paraffin wax.
To render the surface of the composition more slippery so as to prevent
extraneous substances such as marine animal and vegetable growth adhering
thereto I add tallow to such composition, the proportion employed being governed
by the temperature at which the composition is required to melt sufficiently to
become slippery in order to prevent extraneous substances adhering thereto. This
composition I term the anti-fouling composition and to ensure such composition
adhering to the surface to which it is applied I cover such surface with a
preliminary coating of pulverised leather mixed either with napthaline, stearine
pitch, or any other suitable mixing medium and constituting an adhesive compo-
sition which preliminary coating may be applied cold after which I apply one or

page_text: more coats of the anti-fouling composition in a warm state:-Or I may combine the
adhesive and anti-fouling compositions together and apply them when so combined
to the surface to be protected as required
For the sake of economy I prefer to use waste leather but oak bark, cutch,
tannic acid or any other equivalent containing tannin may be employed in lieu
thereof
The advantage of my improved anti-fouling composition over those hitherto
used is that while all others have had for their object the poisoning animal and
vegetable growth when adhering to a Ship's bottom or elsewhere my improved
composition owing to its oleaginous and slippery nature is not only impervious to
the action of water and damp but prevents any such extraneous substances
obtaining any hold thereon and so effectually protects the surface to which it is
applied

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said James Harold Barry in the Great Seal Patent Office on the
16th July 1883.
JAMES HAROLD BARRY Lieutenant R.N.R. of Clapton in the County of Middlesex
"A NEW OR IMPROVED COMBINED ANTI-FOULING AND PRESERVING COMPOSITION
APPLICABLE TO SHIPS' BOTTOMS AND OTHER SUBMERGED AND SUBTERRANEAN
SUBSTANCES
"
This Invention relates more particularly to the preservation of ships' bottoms
from corrosion and fouling-For this purpose I take waste leather of any kind such
as old boots or shoes and after thoroughly disintegrating the same I boil it and add
thereto a weak solution of muriatic or hydrochloric acid say from 5% to 15% of
acid to 100 parts of water-Or instead of boiling the leather I may treat it with
steam in conjunction with such acid solution in order to reduce it to a magma and
should there be any residuum of acid remaining therein I neutralise the same by
treating such magma with Caustic Soda
I then express the acid and moisture therefrom and after drying it reduce it to a
powder and mix such powder with paraffin hydrocarbon or petroleum wax-used
either separately or together To render the surface of the composition more slippery
So as to prevent the extraneous substances such as marine animal or vegetable
growth adhering thereto I add tallow to such composition the proportions employed
being governed by the temperature at which the composition is required to melt
sufficiently to become slippery to prevent any such extraneous substances adhering
thereto This composition I term the anti-fouling composition and to ensure such
composition adhering to the surface to which it is applied I cover such surface
with a preliminary coating of pulverised leather mixed either with napthaline,
stearine pitch or any other suitable mixing medium constituting an adhesive
composition which preliminary coating may be applied cold after which I apply
one or more coats of the anti-fouling composition in a warm state
Or I may combine the adhesive and the anti-fouling compositions together and
apply them in a warm state when thus combined to the surface to be protected as
required
For the sake of economy I prefer to use wasto leather but oak bark cutch
tannic acid or any other equivalent containing tannin may be employed in lieu
thereof
The advantage of my improved anti-fouling composition over those hitherto
used is that while all others bave had for their object the poisoning marine animal
and vegetable growth when adhering to a ship's bottom or elsewhere my improved
composition owing to its oleaginous and slippery nature is not only impervious to
the action of water and damp but prevents any such extraneous substances
obtaining any hold thereon and so effectually protects the surface to which it is
applied
Having thus particularly described the nature of my said invention and the
manner of carrying the same into effect I claim as novel and of my invention the
manufacture from waste leather treated substantially in the manner hereinbefore
described of a new or improved combined anti-fouling and preserving composition

page_text: applicable to ships' bottoms and other submerged and subterranean substances in
order to preserve the same and prevent the adhesion thereto of marine animal and
vegetable growth and other extraneous substances
In Witness whereof I the said James Harold Barry have hereunto set my
hand and scal this sixteenth day of July in the Year of Our Lord One thousand
eight hundred and eighty three
JAMES. HAROLD. BARRY (L.S.)