A NEW OR IMPROVED COMPOSITION FOR COATING THE INSIDES OF CASKS OR OTHER VESSELS
Year: 1876

page_text: LETTERS PATENT to Colin Paget Matthews and John Coope Davis, both of
Leman Street, in the County of Middlesex, for the Invention of "A NEW OR
IMPROVED COMPOSITION FOR COATING THE INSIDES OF CASKS OR OTHER
VESSELS."
Sealed the 28th October 1876, and dated the 11th September 1876.
PROVISIONAL SPECIFICATION left by the said Colin Paget Matthews and
John Coope Davis at the Office of the Commissioners of Patents on the
11th September 1876.
COLIN PAGET MATTHEWS and JOHN COOPE DAVIS, both of Leman Street, in the
County of Middlesex "A NEW OR IMPROVED COMPOSITION FOR COATING THE
INSIDES OF CASKS OR OTHER VESSELS."
The Invention relates to the production of an enamel or composition for the
insides of casks or other vessels which will resist the action of boiling water, acids,
or spirits For this purpose we place about 100lbs. of powdered gum kawrie, or
(as it is sometimes called) gum cowdie or cowrie, or gum anime, or gum copal, or
other similar descriptions of gums, in an earthenware or copper vessel, and add
thereto about 5 gallons of bisulphide of carbon in solution; after which it must be
allowed to remain for about 7 or 8 hours, by which time the gum will have become
a tough, stringy substance. We then drain off the surplus liquid (which will be
useful again) and place the mass in a copper or other suitable vessel surrounded by
water, which must be kept at about boiling point. We now add about 5 gallons of
benzole and keep the mass in a state of gentle agitation, and in about half an hour
it will become liquid; we then add by degrees powdered charcoal to the extent of
about 30lbs. and agitate the mass for about another half hour. This preparation is
now poured off into a larger vessel and about 40 gallons of methylated spirit are
added. The enamel is now ready for use, and may be applied to the cask or other
vessel in the following manner :-
The cask or other vessel should be first thoroughly dried and then heated over a
charcoal stove or blast lamp. The above composition may then be applied by means
of a brush, after which the cask or other vessel must be again heated as before
described until the composition assumes a shiny or glassy appearance.

page_text: This improved composition may be used either alone as above described, or in
addition to other enamel compositions; the mode of procedure in all cases being
similar to the above.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Colin Paget Matthews and John Coope Davis in the Great Seal
Patent Office on the 10th March 1877.
COLIN PAGET MATTHEWS and JOHN COOPE DAVIS, both of Leman Street, in the
County of Middlesex. "A NEW OR IMPROVED COMPOSITION FOR COATING THE
INSIDES OF CASKS OR OTHER VESSELS."
The Invention relates to the production of an enamel or composition for the
insides of casks or other vessels which will resist the action of boiling water, acids, or
spirits. For this purpose we place about 100lbs. of powdered gum kawrie, or (as it
is sometimes called) gum cowdie or cowrie, or we may place a similar quantity of
guin anime or guni copal, or other similar descriptions of gums, in an earthenware
or copper vessel and add thereto about five gallons of bisulphide of carbon, after
which it must be allowed to remain for about 7 or 8 hours, by which time the gum
will have become a tough stringy substance. We then drain off the surplus liquid
(which will be useful again) and place the mass in a copper or other suitable vessel
surrounded by water, which must be kept at about boiling point. We now add
about 5 gallons of benzole and keep the mass in a state of gentle agitation, and in
about half an hour it will become liquid; we then add by degrees powdered charcoal
to the extent of about 30lbs. and agitate the mass for about another half hour. This
preparation is now poured off into a larger vessel, and about 40 gallons of methylated
spirit are added. The enamel is now ready for use and may be applied to the cask
or other vessel in the following manner :-
The cask or other vessel should be first thoroughly dried and then heated by a
charcoal stove, blast lamp, or any other conveniently applied dry heat. The above
composition may then be applied by means of a brush, after which the cask or other
vessel must be again heated as before described until the composition assumes a
shiny or glassy appearance.
This improved composition may be used either alone as above described, or in
addition to other enamel compositions; the mode of procedure in all cases beg
similar to the above
Having thus described the nature of our said Invention, and the mode in which
we carry the saine into effect, we would have it understood that what we claim is,
the production of an enamel or composition for coating the insides of casks or other
vessels which will resist the action of boiling water, acids, or spirits, by the employ-
ment of the materials above named, or their equivalents combined, in or about the
proportions and in the manner herein-before described.
In witness whereof, I, the said John Coope Davis, have hereunto set my
hand and seal, this Seventh day of March, in the year of our Lord One
thousand eight hundred and seventy-seven.