IMPROVEMENTS IN RENDERING FABRICS, THEATRICAL SCENERY, AND OTHER OBJECTS UNINFLAMMABLE
Year: 1882

page_text: LETTERS PATENT to Peter Jensen, of 33, Chancery Lane, in the County of
Middlesex, for an Invention of "IMPROVEMENTS IN RENDERING FABRICS,
THEATRICAL SCENERY, AND OTHER OBJECTS UNINFLAMMABLE." A communi-
cation from abroad by Hippolyte Simon Suillot and Henri David, both of
Paris, France.
PROVISIONAL SPECIFICATION left by the said Peter Jensen at the Office
of the Commissioners of Patents on the 5th January 1882.
PETER JENSEN of 33 Chancery Lane in the County of Middlesex. IMPROVE-
MENTS IN RENDERING FABRICS THEATRICAL SCENERY AND OTHER OBJECTS
UNINFLAMMABLE." (A communication from abroad by Hippolyte Simon Suillot
and Henri David both of Paris France.)
The object of this Invention is to render uninflammable gauze materials and
other fabrics, theatrical scenery and other inflammable objects-more particularly
such as are used in theatres but also other materials or objects required to be
rendered uninflammable. For this purpose such objects or materials are impreg
nated with a solution of salts having incombustible properties. These salts are
gluco-saccharine or molasses borates; gluco-saccharine or molasses phosphates;
gluco-saccharine or molasses silicates; gluco-saccharine or molasses tungstates
soluble or insoluble bases (especially the molasses borate of lime) the succrates,
glucates and melanates of potash, soda, ammoniac, maguesia, aluminium and the
like but especially of lime with the addition of boracic, phosphoric, tungstic or
silicic acids but especially boracic acid.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Peter Jensen in the Great Seal Patent Office on the 5th July
1882.
"
PETER JENSEN of 33 Chancery Lane in the County of Middlesex. IMPROVE
MENTS IN RENDERING FABRICS, THEATRICAL SCENERY AND OTHER OBJECTS
UNINFLAMMABLE." (A communication from abroad by Hippolyte Simon Suillot
and Henri David both of Paris France.)
The object of this Invention is to render uninflammable gauze materials and
other fabrics, theatrical scenery and other inflammable objects more particularly
such as are used in theatres but also other materials or objects required to be
rendered uninflammable. For this purpose such objects or materials are impreg
nated with a solution of salts having incombustible properties. These salts are
gluco-saccharine or molasses borates, gluco-saccharine or molasses phosphates,
gluco-saccharine or molasses silicates, gluco-saccharine or molasses-tungstates
soluble or insoluble bases (especially the molasses borate of lime) the succrates
glucates and melanates of potash soda, ammoniae, magnesia alumine and the like
but especially of lime with the addition of boracic, phosphoric, tungstic, or silicic
acids but especially boracic acid.
The gluco saccharine or molasses borates are obtained by heating to boiling point
the saccharine glucosed or molassed solutions from 5 to 15 degrees Beaumè in the
presence of the borates as above indicated.
The proportions of the borates are to be at hot saturation that is to say that the
proportions of the borates are those which the quantity of saccharine, glucose,
molasses and other solutions can dissolve by heat.
In cooling, a part of the borates crystalize if the solution is very concentrated
but the mother water contains all the saccharine glucose or molasses borate that
any given quantity of sugar glucose or molasses employed in presence of an excess
of borate could combine.
This solution is either by evaporation if the solution is not sufficiently concen-
trated or by addition if it is too much so, brought to 10 degrees Beaumè and then
employed by dipping or steeping therein the fabrics to be rendered uninflammable
(or by coating the surfaces) at a temperature of about 30° centigrade. If the
materials are only painted with the solution it is used cold.
These salts remain soluble in addition with the saccharine and remain unerys-
tallizable when the water is evaporated.
In a word the saccharine glucose or molasses borates impart solubility to the
borax or even to the borates of lime and permit of being held in solution in the
water combine with the saccharine materials considerable masses of borates and as
these saccharine combinations are so to say uncrystallizable they cannot crystalize
in or on the articles impregnated which would at once produce these borates and
soluble borates are referred to employed in boiling or hot solution.
Having now described the nature of the said Invention and in what manner the
same is to be performed I declare that I claim.
The mode and means for rendering fabrics and especially theatrical scenery and
other objects uninflammable substantially as set forth.
In witness whereof I the said Peter Jensen have hereunto set my hand and
seal this Fourth day of July in the year of our Lord One thousand eight
hundred and eighty two
P. JENSEN. (L.S.)