THE MANUFACTURE OF A COMPOSITION COM- TanD OFAZING AND OTHER PURPOSES." IN
Year: 1857

page_text: LETTERS PATENT to Leonard William Watkins, of No. 77, Charlotte
Terrace, New Cut, in the Parish of St. Mary, Lambeth, in the County of
Surrey, for the Invention of "THE MANUFACTURE OF A COMPOSITION COM-
TanD OFAZING AND OTHER PURPOSES."
PROVISIONAL SPECIFICATION left by the said Leonard William Watkins
at the Office of the Commissioners of Patents, with his Petition, on the
3rd January 1857.
I, LEONARD WILLIAM WATKINS, of No. 77, Charlotte Terrace, New Cut, in
the Parish of St. Mary's, Lambeth, in the County of Surrey, do hereby.
declare the nature of the said Invention for "THE MANUFACTURE OF
COMPOSITION COMMONLY KNOWN AS PUTTY, TO BE USED IN GLAZING AND OTHER
PURPOSSES," to be as follows:-
It is a composition of two parts of an oil obtained in the refining of rape
and linseed oils, and commonly known as black acid oil, from its containing
sulphuric acid, which acid is used in the refining of the said oils; added to one
part of any kind of alkali in solution, and mixed with it in a vessel, until by
continual stirring it assumes a creamy or soapy appearance, it is then mixed
by hand labour or any mechanical force with a suflicient quantity of whiting
until it attains the consistence of dough, when it is termed putty.

page_text: 1 claim as new in the above process the use of black acid oil in the manu-
facture of putty.
And I also claim as new the use of alkali in the same manufacture; the
said articles being to the best of my belief never before used in the manufacture
of putty.
I wish it to be understood that the black acid oil used in the above process
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Leonard William Watkins in the Great Seal Patent Office on
the 3rd July 1857.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, LEONARD
WILLIAM WATKINS, of No. 77, Charlotte Terrace, New Cut, in the Parish of
St. Mary, Lambeth, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Third day of January, in the year of our Lord
One thousand eight hundred and fifty-seven, in the twentieth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the
said Leonard William Watkins, Her special licence that I, the said Leonard
William Watkins, my executors, administrators, and assigns, or such others as
I, the said Leonard William Watkins, my executors, administrators, and
assigns, should at any time agree with, and no others, from time to time and
at all times thereafter during the term therein expressed, should and lawfully
might make, use, exercise, and vend, within the United Kingdom of Great
Britain and Ireland, the Channel Islands, and Isle of Man, an Invention for
"THE MANUFACTURE OF A COMPOSITION COMMONLY KNOWN AS PUTTY, TO BE USED IN
GLAZING AND OTHER PURPOSSES," upon the condition (amongst others) that I, the
said Leonard William Watkins, my executors or administrators, by an instru-
ment in writing under my, or their, or one of their hands and seals, should
particularly describe and ascertain the nature of the said Invention, and
in what manner the same was to be performed, and cause the same to be
filed in the Great Seal Patent Office within six calendar months next and
immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Leonard William Watkins, do hereby
declare the nature of the said Invention, and in what manner the same is
to be performed, to be particularly described and ascertained in and by the
following statement, that is to say:-

page_text: It is a composition of two parts of an oil obtained in the refining of rape
& linseed oils, and commonly known as black acid oil, from its containing
sulphuric acid, which acid is used in the refining of the said oils; added
to one part of any kind of alkali in solution, and mixed with it in a
vessel, until by continual stiring it assumes a creamy or soapy appearance,
it is then mix'd by hand labour or any other mechanical force with a suffi-
cient quantity of whiting until it attains the consistance of dough, when it is
term'd putty.
I claim as new in the foregoing process the use of black acid oil in the
manufacture of putty.
And I also claim as new the use of alkali in the same manufacture;
the said articles being to the best of my belief never before used in the
manufacture of putty.
I also wish it to be understood that the black acid oil used in the said process
is the refuse or sediment from the refining of rape and linseed oils.
In witness whereof, I, the said Leonard William Watkins, have hereunto
set my hand & seal, this Third day of July, in the year of our Lord
Ono thousand eight hundred and fifty-seven.
LEONARD WILLIAM WATKINS. (L.S.)