CERTAIN IMPROVE- MENTS IN NON-CONDUCTING COMPOSITION FOR PREVENTING THE RADIATION OR TRANSMISSION OF HEAT OR COLD
Year: 1865

page_text: LETTERS PATENT to Ferdinand Le Roy, of Saint Saulve, in the Empire
of France, but now temporarily residing at Booth Street, Spitalfields,
in the County of Middlesex, for the Invention of "CERTAIN IMPROVE-
MENTS IN NON-CONDUCTING COMPOSITION FOR PREVENTING THE RADIATION OR
TRANSMISSION OF HEAT OR COLD."
Sealed the 22nd September 1865, and dated the 27th March 1865.
PROVISIONAL SPECIFICATION left by the said Ferdinand Le Roy at the
Office of the Commissioners of Patents, with his Petition, on the 27th
March 1865.
I, FERDINAND LE ROY, of Saint Saulve, in the Empire of France, but
temporarily residing at Booth Street, Spitalfields, in the County of Middlesex,
do hereby declare the nature of the said Invention for "CERTAIN IMPROVEMENTS
IN NON-CONDUCTING COMPOSITION FOR PREVENTING THE RADIATION OR TRANSMISSION
OP HEAT OR COLD," to be as follows, that is to say:-
My Invention consists of certain improvements in non-conducting composi-
tion for preventing the radiation or transmission of heat or cold, by means of
which caloric, as well as water and other liquids and beverages, may be pro-
tected from the external air, intense cold, and frost.
This composition, which is herein-after described, can be used as a substitute
for mortar and cement in building or stopping up boilers and other steam
receivers with bricks, also for coating steam boilers, cylinders, steam pipes,
charcoal filters, and other steam receivers and apparatus of any kind where
it is required to prevent the radiation of heat; and it may also be used for

page_text: ting pumps, cylinders, pipes, and other utensils and apparatus for con-
ning and conveying water and other liquids and beverages requiring to be
otected from the external air, intense cold and frost.
I prepare this non-conducting composition by mixing and combining
my glutinous earth, known as brick clay, sand, coal ashes, charcoal in
wder, wood sawdust, cow hair, wheaten flour, fire-clay, water, and oil, or
y kind of fatty matter.
I put together in a vessel of any convenient form and size furnished with a
irring apparatus, about,-
112 parts in weight of slimy glutinous earth,
28 parts in weight of fire-clay,
28 parts in weight of sand,
28 parts in weight of coal ashes,
70 parts in weight of wood charcoal,
28 parts in weight of wood sawdust,
12 parts in weight of cow hair,
2 parts in weight of wheaten flour,
80 parts in weight of water, and
36 parts in weight of cotton foot oil or any other fatty matter.
The stirring apparatus is then put in motion, and as soon as these 10
bstances are well mixed and combined in such a manner as to form a paste
mortar, it is then ready to be used for the purposes herein-before described.
The mode of using it is like that adopted by plasterers in coating walls,
eilings, and other surfaces, so as to obtain a coating of from to 2 inches in
ickness, according to circumstances.
I would observe that I do not confine myself to the exact proportions of
he materials above given.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Ferdinand Le Roy in the Great Seal Patent Office on the
27th September 1865.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, FERDINAND
LE Rox, of Saint Saulve, in the Empire of France, but temporarily residing at
Booth Street, Spitalfields, in the County of Middlesex, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-seventh day of March, in the year of our
Lord One thousand eight hundred and sixty-five, in the twenty-eighth year
of Her reign, did, for Herself, Her heirs and successors, give and grant unto

page_text: me, the said Ferdinand Le Roy, Her special licence that I, the said Ferdinand
Le Roy, my executors, administrators, and assigns, or such others as I, the
said Ferdinand Le Roy, 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 "CERTAIN
IMPROVEMENTS IN NON-CONDUCTING COMPOSITION FOR PREVENTING THE RADIATION
OR TRANSMISSION OF HEAT OR COLD," upon the condition (amongst others) that
I, the said Ferdinand Le Roy, 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 Ferdinand Le Roy, do hereby declare
the nature of the said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement.
My Invention consists of certain improvements in non-conducting com-
positions for preventing the radiation or transmission of heat or cold, by
means of which caloric, as well as water and other liquids and beverages, may
be protected from the external air, intense cold, and frost.
This composition, which is herein-after described, can be used as a substitute
for mortar and cement in building or stopping up boilers and other steam
receivers with bricks, also for coating steam boilers, cylinders, steam pipes,
charcoal filters, 'and other steam receivers and apparatus of any kind
where it is required to prevent the radiation of heat, and it may also be used
for coating pumps, cylinders, pipes, and other utensils and apparatus for
containing and conveying water and other liquids and beverages requiring to
be protected from the external air, intense cold, and frost.
I prepare this non-conducting composition by mixing and combining slimy
glutinous earth known as brick clay with sand, coal ashes, charcoal in
powder, wood sawdust, cow hair, wheaten flour, fire-clay, water, and oil, or
any other similar fatty matter.
I put together. in a vessel of any convenient form and size, furnished with a
stirring apparatus about,―
112 parts in weight of slimy glutinous earth,

page_text: 28 parts in weight of sand,
28 parts in weight of coal ashes,
70 parts in weight of wood charcoal,
28 parts in weight of wood sawdust,
12 parts in weight of cow hair,
2 parts in weight of wheaten flour,
80 parts in weight of water, and,
36 parts in weight of cotton foot oil or any analogous fatty matter.
The stirring apparatus is then put in motion, and as soon as these substances
are well mixed and combined in such a manner as to form a paste or mortar,
it is then ready to be used for the purposes herein-before described.
The mode of using it is like that adopted by plasterers in coating walls,
ceilings, and other surfaces, so as to obtain a coating of from 1 to 2 inches
in thickness, according to circumstances, and when dry the composition is of a
light, hard, and porous nature.
Having now described the nature of my said Invention, and the manner of
performing the same, I wish it to be understood that I do not confine myself
to the exact proportions of the materials above given, as they may be varied
according to their nature and composition, neither do I confine myself to the
precise mode and process of preparing the said composition, as it may also be
varied according to the instruments and machinery employed, but what I do
claim is, the use of coal ashes, sawdust, and cotton foot oil in combination
with the other herein-before named substances for the production of a non-
conducting composition having the property of preventing the radiation or
transmission of heat or cold more effectually than by the non-conducting
compositions hitherto employed as herein-before described.
In witness whereof, I, the said Ferdinand Le Roy, have hereto set my
hand and seal, this Twenty-seventh day of September, in the year of
our Lord One thousand eight hundred and sixty-five.
Witness,
G. F. REDFERN,
4, South Street, Finsbury,
London.
F. LEROY. (L.S.)