IMPROVEMENTS IN COATING STEAM BOILERS, PIPES, AND THE LIKE, TO PREVENT LOSS OF HEAT THEREFROM
Year: 1876

page_text: LETTERS PATENT to Robert McIvor, of Liverpool, in the County of Lancaster,
Cemont Morchant, for the Invention of "IMPROVEMENTS IN COATING STEAM
BOILERS, PIPES, AND THE LIKE, TO PREVENT LOSS OF HEAT THEREFROM."
Sealed the 26th May 1877, and dated the 29th November 1870.
PROVISIONAL SPECIFICATION left by the said Robert McIvor at the Office
of the Commissioners of Patents on the 29th November 1876.
16
ROBERT MCIVOR, of Liverpool, in the County of Lancaster, Cement Merchant.
IMPROVEMENTS IN COATING STEAM BOILERS, PIPES, AND THE LIKE, TO PREVENT
Loss OF HEat therefROM.'
"
The object of the said Invention is to provide a non-conducting radiation
preventing material for coating steam boilers, pipes, and the like, which shall be
durable, efficient, and easily applied, and consists in employing ground or granulated
cork or cork shavings agglutinated or held together by glue, shellac, or the like,
preferably mixed with a metallic oxide, such as zinc oxide. The addition of the
metallic oxido serves to harden and consolidate the glue or like substance, and
prevent the injurious effects of heat, cold, and moisture thereon.
The material above described is rolled or formed into sheets of from one inch and
a half to two inches in thickness whilst in a plastic condition, and is if desired
backed or coated on one side with canvas or flexible material.
In practise the material is cut to the desired size and wrapped round the object
to be covered; the ends which meet are bevelled or chamfered off so as to overlap
each other, and are then glued or otherwise connected together.
0
SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Robert MoIvor in the Great Seal Patent Office on the 28th May
1877.
ROBERT MOIVOR, of Liverpool, in the County of Lancaster Cement, Merchant.
"IMPROVEMENTS IN COATING STEAM BOILERS, PIPES, AND THE LIKE, TO PREVENT
LOSS OF HEAT THEREFROM,"

page_text: The object of the said Invention is to provide a non-conducting radiation
preventing material for coating steam boilers, pipes, and the like, which shall be
durable, efficient, and easily applied, and consists in employing ground or granulated
cork or cork shavings agglutinated or held together by glue, shellac, or the like,
preferably mixed with a metallic oxide, such as zinc oxide. The addition of the
metallic oxide serves to harden and consolidate the glue or like substance, and
prevent the injurious effects of heat, cold, and moisture thereon. I find that twelve
parts by weight of ground or granulated cork or cork shavings, sixteen parts by
weight of glue, gum, shellac, or like agglutinating substance, and one part by
weight of oxide of zinc when mixed with water and worked together, so as to form
a homogeneous adhesive mass, formed when rolled or spread out into sheets, so as
to cover the boiler or other object, an excellent material for preventing the radiation
of heat. The above proportions of material are found to answer well, but various
other proportions may be used if desired.
The material above described is rolled or formed into sheets of from one inch and
a half to two inches in thickness whilst in a plastic condition by any ordinary or
well-known means, and is if desired backed or coated on one side with canvas or
flexible material.
In practice the material is cut to the desired size and wrapped round the object
to be covered; the ends which meet are bevelled or chamfered off so as to overlap
each other, and they are glued or otherwise connected together.
Having now described the nature of the said Invention, and particularized the
sanie, so that others will be enabled to carry the improvements into effect, I claim,
the improved non-conducting radiation preventing material constructed substantially
as described for the purposes set forth.
In witness whereof, I, the said Robert McIvor, have hereunto set my hand
and seal, the Twenty-fifth day of May, in the year of our Lord One thousand
eight hundred and seventy-seven.
R. MIVOR. (L.S.)