An Improved Non-conducting Covering and composition for Pipes or Tubes, and other Vessels or Receptacles.
Year: 1886

page_text: The decision of the Comptroller-General, of the 21st day of July 1892, allowed,
under Section 18 of the Patents, &c. Act, 1883, an Amendment of this
Specification.
COMPLETE SPECIFICATION (AMENDED).
[Communicated from abroad by Hiram Montgomery Hanmore and Richard Van
Selous Mattison, M.D., both of Philadelphia, in the State of Pennsylvania,
and Henry Griffiths Keasbey, of Ambler, in said State of Pennsylvania,
United States of America.]
An Improved Non-conducting Covering and composition for
Pipes or Tubes, and other Vessels or Receptacles.
İ, HENRY EDWARD NEWTON of the Office for Patents, 6 Bream's Buildings,
Chancery Lane in the County of Middlesex, Civil Engineer, do hereby declare the
nature of this invention and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement :-
The object of this invention is to provide a covering or jacket which is composed
of tiles or sections of a material which is very light, and will not be deteriorated
by heat or atmospheric influences, and which possesses in a high degree the
qualities of a non-conductor of heat. Such tiles or sections may be employed in
covering steam pipes and other pipes for conducting fluids, and in covering boilers,
and other vessels, which it is desired to protect from radiation, either outward or
inward. A further object of the invention is to provide a non-conducting com-
position which comprises the same essential ingredients as the aforesaid tiles or
sections, and which may be applied in a plastic state to boilers or other vessels,
and to pipes and other conduits.
The invention consists in a non-conducting covering for jacket composed of
moulded tiles or sections, which include, as essential elements, carbonate of, or
calcined magnesia, and asbestos or other fibrous material. When employed to
cover a pipe or analogous conduit, the tiles or sections may be semi-cylindric, and
to their backs may be cemented a canvas or other fabric jacket, which forms a
hinge joint between the sections, and which has flaps which lap over and cover
the joints between the tiles or sections.
The invention also consists in a non-conducting composition, consisting essentially

page_text: of carbonate of, or calcined magnesia, to which is added a minor quantity of
asbestos or other fibre.
In the accompanying drawing, Fig. 1 is a perspective view of a portion of
pipe and a jacket or covering embodying the invention, the tiles or sections being
separated so as to illustrate the method of applying them to the pipe; and Fig. 2
is a transverse section of the pipe and the covering closed and secured about the
same.
Similar letters of reference designate corresponding parts in both the figures.
A designates a pipe, which may be used for conducting steam, hot liquid, or any
other fluid, and B, B designate semi-cylindric tiles or sections, which form a non-
conducting covering or jacket for the pipe A.
As here represented, the tiles or sections, B, have cemented to their backs, a
canvas or other fabric jacket or covering C, which connects the tiles or sections as
by a hinge joint, and is provided with flaps cc'. When the sections, B, are closed
about the pipe, the flap c laps circumferentially around the pipe, so as to cover the
joint between the sections B, and the_end_flap cl serves to cover the joint between
the sections B and similar sections butted end wise against them.-If desired, a
small quantity of plastic composition, composed principally of carbonate of, or
calcined magnesia, may be introduced into the joints between the sections B, and
the whole covering may be secured in place around the pipe by external bands D,
or other suitable means, as shown in Fig. 2.
The tiles or sections B are formed in suitable moulds from a composition, the
essential elements of which are carbonate of, or calcined magnesia, and asbestos or
other fibrous material, in or about the following proportions, viz :-
Carbonate of, or calcined magnesia
Asbestos or other fibre
-
-
75 parts..
20 parts.
These proportions may be considerably varied, but the major part of the
composition will usually consist of carbonate of, or calcined magnesia, which
possesses in a high degree the properties of a non-conductor of heat, and the
asbestos or other fibre is employed as a binding material for the magnesia.
The same composition above described may be used in a plastic state for
application to boilers and other vessels.
We are aware that the mere application of cast or moulded tiles or sections to pipes
and boilers for the same purpose as that herein described is not new, and we lay no claim
to the simple use of moulded tiles or sections as such.
We are aware also, that it is not new to employ magnesia in small quantities in a
non-conducting composition, the magnesia being combined with other ingredients in order
to produce a composition, which, when applied to the surface to be covered will harden
into a stone-like casing or shell. In such use, the magnesia does not form of itself the
principal non-conducting element of the composition.
Our composition, whether applied by placing it over the surface of a pipe or boiler, or
by moulding it into tiles or sections, includes as its principal element, a major proportion
of magnesia, and this magnesia forms of itself and is depended on to form the principal
and important non-conducting material of the composition. Not only is a composition of
about the proportions set forth by us very desirable, because of its great non-conducting
character, but it is furthermore desirable because of its extreme lightness. It is,
therefore, easily applied with little labor, and does not add materially to the weight of
the pipe or other vessel covered by it.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, as communicated to
me by my foreign correspondents, I declare that what I claim is :-
1. The non-conducting covering or jacket herein described, consisting of moulded
tiles or sections, which include, as essential elements of their composition, carbonate
of, or calcined magnesia, and asbestos or other fibre, substantially as and for the
purpose herein set forth.

page_text: 2. The non-conducting covering or jacket herein described, consisting of moulded
tiles or sections, which include, as essential elements of their composition, carbonate
of, or caleined magnesia, and asbestos or other fibre, and a canvas or other jacket
eemented to the backs of the tiles or sections, and having flaps for covering the
joints between them; substantially as and for the purpose herein set forth.
3. The non conducting composition consisting of carbonate of or calcined
magnesia, to which is added asbestos or other fibre, in or about the proportions
specified.
1. A non-conducting covering or jacket composed of moulded tiles or sections of a
composition which includes a major proportion of carbonate of or calcined magnesia and
which also includes a sufficient quantity of fibrous material to bind the magnesia
together, the magnesia forming of itself the principal non-conducting element of the
composition substantially as herein described.
2. The non-conducting composition herein described consisting of a major proportion
of carbonate of or calcined magnesia which forms of itself the principal non-conducting
element of the composition and a minor proportion of asbestos fibre sufficient to bind the
magnesia together as herein set forth.
3. The non-conducting covering or jacket herein described consisting of moulded tiles
or sections of a composition which includes a major proportion of carbonate of or calcined
magnesia and which also includes a sufficient quantity of fibrous material to bind the
magnesia together, the magnesia forming of itself the principal non-conducting element
of the composition in combination with a canvas or other jacket cemented to the backs of
the tiles or sections and having flaps for covering the joints between them substantially
as and for the purpose herein set forth.

page_text: [Communicated from abroad by Hiram Montgomery Hanmore and Richard Van
Selous Mattison, M.D., both of Philadelphia, in the State of Pennsylvania,
and Henry Griffiths Keasbey, of Ambler, in said State of Pennsylvania,
United States of America.]
An improved Non-conducting covermg апа сопронов дог
Pipes or Tubes, and other Vessels or Receptacles.
I, HENRY EDWARD NEWTON of the Office for Patents, 6 Bream's Buildings,
Chancery Lane in the County of Middlesex, Civil Engineer, do hereby declare the
nature of this invention and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement:-
The object of this invention is to provide a covering or jacket which is composed
of tiles or sections of a material which is very light, and will not be deteriorated
by heat or atmospheric influences, and which possesses in a high degree the
qualities of a non-conductor of heat. Such tiles or sections may be employed in
covering steam pipes and other pipes for conducting fluids, and in covering boilers,
and other vessels, which it is desired to protect from radiation, either outward or
inward. A further object of the invention is to provide a non-conducting com-
position which comprises the same essential ingredients as the aforesaid tiles or
sections, and which may be applied in a plastic state to boilers or other vessels,
and to pipes and other conduits.
The invention consists in a non-conducting covering or jacket composed of
moulded tiles or sections, which include, as essential elements, carbonate of, or
calcined magnesia, and asbestos or other fibrous material. When employed to
cover a pipe or analogous conduit, the tiles or sections may be semi-cylindric, and
to their backs may be cemented a canvas or other fabric jacket, which forms.a
hinge joint between the sections, and which has flaps which lap over and cover
the joints between the tiles or sections.
The invention also consists in a non-conducting composition, consisting essentially
of carbonate of, or calcined magnesia, to which is added a minor quantity of
asbestos or other fibre.
In the accompanying drawing, Fig. 1 is a perspective view of a portion of
pipe and a jacket or covering embodying the invention, the tiles or sections being

page_text: separated so as to illustrate the method of applying them to the pipe; and Fig. 2
is a transverse section of the pipe and the covering closed and secured about the
same.
Similar letters of reference designate corresponding parts in both the figures.
A designates a pipe, which may be used for conducting steam, hot liquid, or any
other fluid, and B, B designate semi-cylindric tiles or sections, which form a non-
conducting covering or jacket for the pipe A.
As here represented, the tiles or sections, B, have cemented to their backs, a
canvas or other fabric jacket or covering C, which connects the tiles or sections as
by a hinge joint, and is provided with flaps co¹. When the sections, B, are closed
about the pipe, the flap c laps circumferentially around the pipe, so as to cover the
joint between the sections B, and the end flap o¹ serves to cover the joint between
the sections B and similar sections butted endwise against them.-If desired, a
small quantity of plastic composition, composed principally of carbonate of, or
calcined magnesia, may be introduced into the joints between the sections B, and
the whole covering may be secured in place around the pipe by external bands D,
or other suitable means, as shown in Fig. 2.
The tiles or sections B are formed in suitable moulds from a composition, the
essential elements of which are carbonate of, or calcined magnesia, and asbestos or
other fibrous material, in or about the following proportions, viz :—
Carbonate of, or calcined magnesia
Asbestos or other fibre
-
75 parts.
-
20 parts.
These proportions may be considerably varied, but the major part of the
composition will usually consist of carbonate of, or calcined magnesia, which
possesses in a high degree the properties of a non-conductor of heat, and the
asbestos or other fibre is employed as a binding material for the magnesia.
The same composition above described may be used in a plastic state for
application to boilers and other vessels.
.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, as communicated to
me by my foreign correspondents, I declare that what I claim is :-
1. The non-conducting covering or jacket herein described, consisting of moulded
tiles or sections, which include, as essential elements of their composition, carbonate
of, or calcined magnesia, and asbestos or other fibre, substantially as and for the
purpose herein set forth.
2. The non-conducting covering or jacket herein described, consisting of moulded
tiles or sections, which include, as essential elements of their composition, carbonate
of, or calcined magnesia, and asbestos or other fibre, and a canvas or other jacket
cemented to the backs of the tiles or sections, and having flaps for covering the
joints between them; substantially as and for the purpose herein set forth.
3. The non-conducting composition consisting of carbonate of or calcined
magnesia, to which is added asbestos or other fibre, in or about the proportions
specified.