AN IMPROVED CROWN OP ROUND GLASS AND APPARATUS FOR MANUFACTURING THE SAME
Year: 1858

page_text: LETTERS PATENT to Henry Page, of Whitechapel, in the County of
Middlesex, Glass Merchant, for the Invention of "AN IMPROVED CROWN
OP ROUND GLASS AND APPARATUS FOR MANUFACTURING THE SAME."
Sealed the 11th March 1859, and dated the 11th September 1858.
PROVISIONAL SPECIFICATION left by the said Henry Page at the
Office of the Commissioners of Patents, with his Petition, on the
11th September 1858.
I, HENRY PAGE, of Whitechapel, in the County of Middlesex, Glass
Merchant, do hereby declare the nature of the said Invention for "AN
IMPROVED CROWN OR ROUND GLASS, AND APPARATUS FOR MANUFACTURING THE
SAME," to be as follows:-
My Invention consists in manufacturing crown glass without the "bullion,"
or large bulging piece, which always occurs in crown glass according to the
means now followed in its manufacture.
My apparatus for manufacturing the crown glass without the bullion, consists
of a hollow tube, one end of which is formed with a flat nose perforated with
numerous small holes, the other end of the tube is connected by a flexible tube
to a vacuum pump or to an exhausted receiver. The tube or apparatus is
furnished with a stop-cock or valve. The operation is as follows:-After the
glass is blown the usual shape, the workman opens the communication between
the tube and vacuum pump or exhausted receiver, and presents the perforated

page_text: nose thereof to the glass, which becomes attached thereto. The glass is then
flashed in the usual way, and when finished, communication with the vacuum
pump or receiver is shut off, and the glass is released from the tubo.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Henry Page in the Great Seal Patent Office on the 11th
March 1859.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRY
PAGE, of Whitechapel, in the County of Middlesex, Glass Merchant, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Eleventh day of September, in the year of our Lord
One thousand eight hundred and fifty-eight, in the twenty-second year of
Her reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said Henry Page, Her special licence that I, the said Henry Page,
my executors, administrators, and assigns, or such others as I, the
said Henry Page, 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 "AN IM-
PROVED CROWN OR ROUND GLASS, AND APPARATUS FOR MANUFACTURING THE SAME,"
upon the condition (amongst others) that I, the said Henry Page, my
executors or administrators, by an instrument 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 Henry Page, do hereby declare the
nature of my said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement thereof, that is to say:-
My Invention consists in manufacturing crown glass without the "bullion,"
or large bulging piece which always occurs in crown glass according to the
means now followed in its manufacture.
My apparatus for manufacturing the crown glass without the bullion consists

page_text: of a hollow tube, one end of which is formed with a flat nose perforated with
one or more holes; the other end of the tube is connected by a flexible pipe
to a vacuum pump, or to an exhausted receiver. The tube or apparatus is
furnished with a stop-cock or valve. The operation is as follows:-After the
glass is blown the usual shape, the workman opens the communication between
the tube and vacuum pump or exhausted receiver, and presents the perforated
nose thereof to the glass, which becomes attached thereto. The glass is then
flashed in the usual way, and when finished, communication with the vacuum
pump or receiver is shut off, and the glass is released from the tube, and
presents no "bullion" or bulging piece. I face the perforated end of the tube
presented to the glass with some non-conducting and fire-resisting material,
such as mica, talc, or asbestos, to prevent the splitting of the glass.
And having now described the nature of my said Invention, and in what-
manner the same is to be performed, I declare that I claim,-manufacturing
crown or round glass without bullion, and the employment of a hollow
perforated tube connected to a vacuum pump or exhausted receiver to produce
the same, as herein-before described.
In witness whereof, I, the said Henry Page, have hereunto set my hand
and seal, this Tenth day of March, One thousand eight hundred and
fifty-nine.
HENRY PAGE. (L.S.)