IMPROVEMENTS IN THE MANUFACTURE OF FIRE BRICKS, REPORTS, CRUCIBLES, AND OTHER FIRE-WARE GOODS INTENDED FOR RESISTING INTENSE HEAT
Year: 1881

page_text: LETTERS PATENT to Samuel Jones Payne, of Charlton, in the County of
Kent, for an Invention of "IMPROVEMENTS IN THE MANUFACTURE OF FIRE
BRICKS, REPORTS, CRUCIBLES, AND OTHER FIRE-WARE GOODS INTENDED FOR
RESISTING INTENSE HEAT,"
PROVISIONAL SPECIFICATION left by the said Samuel Jones Payne at the
Office of the Commissioners of Patents on the 16th March 1881.
SAMUEL JONES PAYNE, of Charlton, in the County of Kent.
"IMPROVEMENTS
IN THE MANUFACTURE OF FIRE-BRICKS, RETORTS, CRUCIBLES, AND OTHER FIRE-
WARE GOODS INTENDED FOR RESISTING INTENSE HEAT."
This Invention has for its object improvements in the manufacture of firebricks
retorts, crucibles, and other fireware goods intended for resisting intense heat.
I manufacture such articles from a composition in the nature of "artificial
stone," and the ingredients of which have heretofore been employed in making
artificial stone; but by omitting from my composition some substances which for
the manufacture of artificial stone have been mixed with the materials which I
employ, and by varying the proportions of others, I obtain a composition which
when moulded forms bricks or other articles capable of withstanding a very high
heat, whereas the artificial stones heretofore produced from the same materials do
not bear a fire heat.
I take clay, graphite, millstone grit, calcined flints, sandstone, and sands, burnt
or unburnt, grinding any of them that may require it sufficiently fine by any kind
of machinery usually employed for such purposes.
To any one of the above materials, or several of them in combination according
to the description of article I wish to produce, I add Portland cement or hydraulic
lime

page_text: A intimately mix the same by sitting or other mechanical means, and then add
thereto silicate of soda or silicate of potash.
Proportions suitable are,—
7 lbs. sand.
1,, Portland cement.
"
1/, pint silicate soda.
I mould this compound either by hand or any suitable machinery into the desired
shapes.
I then dry and harden the articles thus made by placing them in drying rooms
or suitable ovens till they are sufficiently hard to bear carriage.
After the articles have been thus prepared I-sometimes immerse them in a very
weak preparation of silicate of soda or similar alkali, and then redry them.
In the manufacture of some fireware goods I find it desirable to immerse them in
a solution of carbonate of magnesia instead of the preparation of silicate of soda.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Samuel Jones Payne in the Great Seal Patent Office on the
16th September 1881.
SAMUEL JONES PAYNE, of Charlton, in the County of Kent. "IMPROVEMENTS
IN THE MANUFACTURE OF FIRE BRICKS, RETORTS, CRUCIBLES, AND OTHER FIRE
WARE GOODS INTENDED FOR RESISTING INTENSE HEAT."
This Invention has for its object improvements in the manufacture of fire bricks,
retorts, crucibles, and other fire ware goods intended for resisting intense heat.
I manufacture such articles from a composition in the nature of " artificial
stone," and the ingredients of which have heretofore been employed in making
artificial stone; but by omitting from my composition some substances which for
the manufacture of artificial stone have been mixed with the materials which I
employ, and by varying the proportions of others, I obtain a composition which
when moulded forms bricks or other articles capable of withstanding a very high
heat, whereas the artificial stones heretofore produced from the same materials do
not bear a fire heat.
I take clay, graphite, mill-stone-grit, calcined flints, sand-stone, and sands, burnt
or unburnt, grinding any of them that may require it sufficiently fine by any kind
of machinery usually employed for such purposes. Chalk or Farnham stone, which
are now ordinarily used in the manufacture of artificial stone, must not be used, or
only in very small proportions, or the articles when made would fly when submitted
to heat.
To any one of the above materials, or several of them in combination, according
to the description of article I wish to produce, I add Portland cement or hydraulic
lime.
I intimately mix the same by sifting or other mechanical means, and then add
thereto silicate of soda or silicate of potash in solution. The materials are kneaded
or pugged to thoroughly admix them.

page_text: Having thus described the nature of my Invention, and the manner of performing
the same, I would have it understood that I claim,-
The manufacture of fire bricks, retorts, crucibles, and other fire ware goods,
substantially as herein before described.
In witness whereof, I, the said Samuel Jones Payne, have hereunto set my
hand and seal, this Ninth day of September, in the year of our Lord One
thousand eight hundred and eighty-one.
SAMUEL JONES PAYNE. (L.S.)