MAKING HATS PERFECTLY GREASE-PROOF
Year: 1864

page_text: LETTERS PATENT to Frederick Thomas Aldridge and Maxwell Julius
Jackson, both of No. 61, Queen Street, Cheapside, in the City of
London, Hat and Cap Manufacturers, for the Invention of "MAKING HATS
PERFECTLY GREASE-PROOF."
PROVISIONAL SPECIFICATION left by the said Frederick Thomas 'Aldridge
and Maxwell Julius Jackson, at the Office of the Commissioners of
Patents, with their Petition, on the 29th April 1864.
We, FREDERICK THOMAS ALDRIDGE and MAXWELL JULIUS JACKSON, both of
No. 61, Queen Street, Cheapside, in the City of London, do hereby declare the
nature of the said Invention for "MAKING, HATS PERFECTLY GREASE-PROOP," to
be as follows.
This Invention has for its object the manufacturing of a grease-proof hat.
The body of the hat is composed of three substances, viz., two of calico and
one of paper covered with the composition known as oleo charta, Patented
by Francis Robert Piltz, and dated 28th May 1863, No. 1335, which sub-
stances are all steeped in a solution of shellac, liquid ammonia, and water, a
great heat is then applied which firmly adheres all three parts or substances
together, so far for the body. The brim undergoes the same process as the
body only that between the paper spoken of before and the calico a layer of

page_text: varuish made from shellac, and dissolved in spirits of wine, is introduced, and
by means of great heat the brim is formed to the body.
body. By the process
mentioned the brim and body of a bat are rendered perfectly grease-proof.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Frederick Thomas Aldridge and Maxwell Julius Jackson in
the Great Seal Patent Office on the 29th October 1864.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, FREDERICK
THOMAS ALDRIDGE and MAXWELL JULIUS JACKSON, both of No. 61, Queen
Street, Cheapside, in the City of London, Hat and Cap Manufacturers, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-ninth day of April, in the year of our Lord
One thousand eight hundred and sixty-four, in the twenty-seventh year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto us, the
said Frederick Thomas Aldridge and Maxwell Julins Jackson, Her special
licence, that we, the said Frederick Thomas Aldridge and Maxwell Julius
Jackson, our executors, administrators, and assigns, or such others as we,
the said Frederick Thomas Aldridge and Maxwell Julius Jackson, our
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 "MAKING HATS PERFECTLY GREASE-
PROOF," upon the condition (amongst others) that we, the said Frederick Thomas
Aldridge and Maxwell Julius Jackson, our executors or administrators, by an
instrument in writing under our, 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 Maxwell Julius Jackson on behalf
of myself and my co-patentee the said Frederick Thomas Aldridge, do
hereby declare the nature of our said Invention, and in what manner the
same is to be performed, to be particularly described and ascertained in and
by the following statement :--

page_text: The body of the hat is composed of three substances, namely, two of
calico and one of paper covered with the composition known as oléo charta,
Patented by Francis Robert Piltz, (May 28th, 1863, No. 1335) which sub-
stances are all steeped in a solution of shellac, liquid ammonia, and water.
A great heat is then applied which firmly adheres all three parts or substances
together, so far for the body. The brim undergoes the same process as the
body only that between the paper spoken of before and the calico a layer of
varnish made from shellac and dissolved in spirits of wine is introduced, and
by means of great heat the brim is joined to the body. By the process
mentioned the brim and body of a hat are rendered perfectly grease-proof.
In witness whereof, I, the said Maxwell Julius Jackson, have hereunto set
my hand and seal, this Twenty-ninth day of October, in the year of
our Lord One thousand eight hundred and sixty-four.
Signed, sealed, and delivered by the
above-named Maxwell
Jackson, in the presence of
ROB. T. STONEHAM,
Julius
3ª, Philpot Lane,
London.
M. J. JACKSON. (L.S.)
for Self & Co-patentee.