AN IMPROVED PROTECTING COATING FOR SHIPS, TELEGRAPH CABLES, AND OTHER STRUCTURES OR MATERIALS
Year: 1879

page_text: LETTERS PATENT to George Watson, of Castle-Eden Colliery, in the County of
Durham, Colliery Inspector, for the Invention of "AN IMPROVED PROTECTING
COATING FOR SHIPS, TELEGRAPH CABLES, AND OTHER STRUCTURES OR
MATERIALS."
Sealed the 15th July 1879, and dated the 30th January 1879.
PROVISIONAL SPECIFICATION left by the said George Watson at the
Office of the Commissioners of Patents on the 30th January 1879.
GEORGE WATSON, of Castle-Eden Colliery, in the County of Durham, Colliery
Inspector. "AN IMPROVED PROTECTING COATING FOR SHIPS, TELEGRAPH CABLES,
AND OTHER STRUCTURES OR MATERIALS."
This Invention has for its object the preservation of ships of iron or steel, or of
wood sheathed with metal, telegraph cables, and other structures exposed to the
action of salt or fresh water, from oxidation or corrosion and from fouling or the
attachment or growth of shell-fish, worms, or vegetable matter, and as respects
telegraph cables, from penetration or perforation by worms or other animalcules.
For these purposes I apply a chemical substance obtained in distilling coal tar or
pitch, commonly know to tar distillers as 'sene-grease," and which contains
chrysene, pyrene, anthracine, and naphthaline in varying proportions, and which I
have discovered has the effect of preserving the surface to which it is applied from
oxidation, corrosion, fouling, or attachment or growth of shell fish or other
animalcules or vegetable matter. This substance is also obtained from the dry
distillation of fats, resins, and the like.
"
This substance I make into a composition of the consistency of paint by mixing
it with resin, naphtha, turpentine, or other suitable vehicle, and I apply this mixture
to the surface to be protected by a brush, or in the case of telegraph cables I
saturate with the mixture the protecting covering between the gutta percha and
the outer wire wrapping.
The natural colour of the substance is a fine yellow, but it can be made of other
colours by the use of suitable colouring matters.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the_said George Watson in the Great Seal Patent Office on the 30th
-July-1879
GEORGE WATSON, of Castle-Eden Colliery; in the County of Durham, Colliery-
Inspector. "AN IMPROVED PROTECTING COATING FOR SHIPS, TELEGRAPH CABLES,
AND OTHER STRUCTURES OR MATERIALS."
This Invention has for its object the preservation of ships of iron or steel, or of
wood sheathed with metal, telegraph cables, and other structures exposed to the
action of salt or fresh water, from oxidation or corrosion, and from fouling or the
attachment or growth of shell fish, worms, or vegetable matter, and as respects
telegraph cables, from penetration or perforation by worms or other animalcules.
For these purposes I apply a chemical substance obtained in distilling coal tar or
pitch commonly known to tar distillers as "sene-grease," and which contains
chrysine, pyrine, anthracine, and naphthaline in varying proportions, and which I
have discovered has the effect of preserving the surface to which it is applied from
oxidation, corrosion, fouling, or attachment or growth of shell fish or other
animalcules or vegetable matter. This substance is also obtained from the dry
distillation of fats, resins, and the like.
This substance I make into a composition of the consistency of paint by mixing
it with resin, naphtha, turpentine, or other suitable vehicle, and I apply this
mixture to the surface to be protected by a brush, or in the case of telegraph cables
I saturate with the mixture the protecting covering between the gutta pereha and
the outer wire wrapping.
The natural colour of the substance is a fine yellow, but it can be made of other
colours by the use of suitable colouring matters.
Having described the nature of my said Invention, and the manner of carrying
it into practical effect, I would have it understood that what I consider to be novel
and original and therefore claim as the Invention secured to me under the Letters
Patent herein before in part recited is the improved coating for protecting ships,
telegraph cables, and other structures or materials, substantially as hereinbefore
described.
In witness whereof, I, the said George Watson, have hereunto set my hand
and seal, this Twenty sixth day of July, in the year of our Lord One
thousand eight hundred and seventy nine.
GEORGE WATSON. (L.S.)