IMPROVEMENTS IN GLASS BOTTLE-HOUSE POT CARRIAGES AND IMPLEMENTS USED IN SETTING GLASS BOTTLE-HOUSE POTS, WHICH INVENTION ADMITS OF IMPROVEMENTS IN THE CONSTRUCTION OF FURNACES FOR MELTING BOTTLE OR OTHER GLASS IN OPEN POTS
Year: 1867

page_text: LETTERS PATENT to Edgar Breffit, of Castleford, in the Southern
Division of the West Riding of the County of York, for the Invention
of "IMPROVEMENTS IN GLASS BOTTLE-HOUSE POT CARRIAGES AND IMPLEMENTS
USED IN SETTING GLASS BOTTLE-HOUSE POTS, WHICH INVENTION ADMITS OF
IMPROVEMENTS IN THE CONSTRUCTION OF FURNACES FOR MELTING BOTTLE OR
OTHER GLASS IN OPEN POTS."
Sealed the 16th June 1868, and dated the 19th December 1867.
PROVISIONAL SPECIFICATION left by the said Edgar Breffit at the Office
of the Commissioners of Patents, with his Petition, on the 19th December
1867.
I, EDGAR BREFFIT, of Castleford, in the Southern Division of the County of
York, do hereby declare the nature of the said Invention for my "IMPROVEMENTS
IN GLASS BOTTLE-HOUSE POT CARRIAGES AND IMPLEMENTS USED IN SETTING GLASS
BOTTLE-HOUSE POTS, WHICH INVENTION ADMITS OF IMPROVEMENTS IN THE CONSTRUCTION
OF FURNACES FOR MELTING BOTTLE OR OTHER GLASS IN OPEN Pors," to be as
follows:-
My improvements consist in the construction of what is known in glass
works as a pot carriage, which carriage instead of having a projecting bar

page_text: for carrying an open pot into the furnace on its side has jaws so placed that
by clasping the pot in an upright position it (the pot) is in such position
carried into the furnace thro' the usual aperture, by which improved con-
struction less space is required in the furnace for getting the said pots into
their position for founding. The jaws placed as above described are either
stationary or are made to open and shut by means of levers, screws, or wedges
to suit the size of the pots used.
The part of the Invention admitting of improvements in the construction of
furnaces for melting bottles or other glass in open pots consists in diminishing
the height of the same, whereby economy is obtained in the consumption of
fuel and a great saving of time also in the founding.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Edgar Breffit in the Great Seal Patent Office on the 17th
June 1868.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, EDGAR
BREFFIT, of Castleford, in the Southern Division of the West Riding of the
County of York, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Nineteenth day of December, in the year of our Lord
One thousand eight hundred and sixty-seven, in the thirtieth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said Edgar Breffit, Her special licence that I, the said Edgar Breffit,
my executors, administrators, and assigns, or such others as I, the said Edgar
Breffit, 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 "IMPROVEMENTS IN GLASS
BOTTLE-HOUSE POT CARRIAGES AND IMPLEMENTS USED IN SETTING GLASS BOTTLE-
HOUSE POTS, WHICH INVENTION ADMITS OF IMPROVEMENTS IN THE CONSTRUCTION OF
FURNACES FOR MELTING BOTTLE OR OTHER GLASS IN OPEN POTS," upon the
condition (amongst others) that I, the said Edgar Breffit, 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

page_text: calendar months next and immediately after the date of the said Letters
Patent.
NOW KNOW YE, that I, the said Edgar Breffit, 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:-
My improvements consist in the construction of what is known in glass
works as a pot carriage, which carriage instead of having a projecting bar for
carrying an open pot into the furnace on its side bas jaws so placed that by
clasping the pot in an upright position it (the pot) is in such a position
carried into the furnace through the usual aperture, by which improved con-
struction less space is required in the furnace for getting the said pots
into their position for founding. The jaws placed above described so as to
clasp the pot in an upright position are either stationary or are made to open
and shut by means of levers, screws, or wedges to suit the size of the pots
used.
The improved pot carriage is illustrated in the annexed Drawings, in which
Figure 1 is a plan and Figure 2 an elevation. In Figure 2 the carriage is
represented holding a pot in the position in which it is pushed forward into
the furnace, clamping it in an upright position. In Figure 1, a, a, are the
clamps or jaws which move on their fulcrums b, b, which are placed in a line
coincident with that of the axle. The other extreme of the levers or clamps
c, c, carries swivel screw bosses or nuts, the right and left hand screw d passing
through them. The screw d revolves in a journal or bush e by which it is
prevented moving endways. When the screw therefore is turned to the right
or left by the hand wheel the ends of the levers or jaws will approach or
recede from each other, and so the pot may be gripped tight or let go as
required. The apparatus is mounted on two wheels f, f, the fulcrums of the
levers or clamps being suspended below the axle, as shewn in Figure 2; e, e,
are two cross handles to guide the machine attached to the lever or bar 9
which extends forward as far as h to support the weight of the pot.
By the use of the above improved pot holder or carriage it will be seen that
instead of the pot being pushed into the furnace with the inside resting on the
projecting bar of an ordinary pot carriage and landed on its side therein, from
which position it has afterwards to be raised on its base, it passes into the
furnace in an upright position, and in consequence the crown or reverberatory
part of the furnace may be brought so much nearer the surface of the material
to be vitrified in the pot that the fire strikes it with such increased heat or
force that the process of vitrification is completed in a proportionately less time,

page_text: thereby saving the consumption of coal which would otherwise be used by the
longer period of founding.
Having thus described the nature of my Invention, and the manner of
performing the same, I would have it understood that I do not confine myself
to the exact details described; but what I claim is, the manner of holding
and setting open glass-house pots in an upright position, as herein described,
so as to obtain a reduction of height in the crown of the furnace.
In witness whereof, I, the said Edgar Breffit, have hereunto set my
hand and seal, this Third day of June, in the year of our Lord
One thousand eight hundred and sixty-eight.
EDGAR BREFFIT. (L.S.)