Improvements in Non-conducting Coverings for Steam Pipes and other Hot Surfaces of the like kind.
Year: 1894

page_text: Date of Application, 15th May, 1894
Complete Specification Left, 19th July, 1894-Accepted, 25th Aug., 1894
PROVISIONAL SPECIFICATION.
Improvements in Non-conducting Coverings for Steam Pipes and
other Hot Surfaces of the like kind.
I, FREDERICK MALCOLM HURDIS JONES, of Perren Street, Ryland Road,
Kentish Town, in the County of Middlesex, Manufacturer, do hereby declare the
nature of this invention to be as follows:-
My present invention relates to the coverings ordinarily used upon steam pipes,
and other heated surfaces for the purpose of preventing the loss of heat by
radiation, and especially to such covering consisting of what is known as silicate
cotton, or mineral wool.
Such materials when used for the purpose described have ordinarily been made
of a sufficient thickness of the non-conducting material placed round the pipe or
heated surface to be covered, and retained in its position by an outer covering of
canvas, or other like woven fabric.
I have found however that, especially for covering steam pipes in engine rooms
or upon boilers, an objection exists to the covering made as described, in the
liability of the outer canvas covering to be burned, and so allow the non-conducting
material to escape and become useless.
My present invention consists essentially in making the outer flexible covering
by which the non-conducting material is retained in place, of an incombustible
material such as asbestos cloth.
I take a strip of asbestos cloth of sufficient strength, and of suitable width and
length, and upon it I place a layer of sufficient thickness of silicate cotton, which
I attach to the cloth by stitching or quilting, preferably with asbestos thread, and
I wind the compound strip so formed helically round the steam pipe, the cover of
asbestos cloth being outside, and I retain the covering in its place by sewing or
by wires or other means.
The outer asbestos cloth may be painted or otherwise finished, and being incom-
bustible its durability is very great and it is capable of remaining serviceable upon
the pipe which it protects, for a very long period.
The non-conducting material is itself also, of course incombustible, and transverse
or inclined angular notches may be made across it to facilitate its bending in fitting
it round the pipe.
Instead of strips prepared and made as described, similar compound sheets of
suitable size and shape may be used for covering different surfaces, and instead of
asbestos cloth, other textile fabrics rendered incombustible in any of the well known
ways may be used.
The non-conducting material may be used of any desired thickness, according to
the degree of heat of the pipe or other surface which it is to protect, and according
to the purpose for which it is to be used.
Dated thie 15th dox of Mo 1894

page_text: COMPLETE SPECIFICATION.
Improvements in Non-conducting Coverings for Steam Pipes and
other Hot Surfaces of the like kind.
I, FREDERICK MALCOLM HURDIS JONES, of Perren Street, Ryland Road,
Kentish Town, in the County of Middlesex, Manufacturer, 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, that
is to say:
My present invention relates to the coverings ordinarily used upon steam pipes,
and other heated surfaces, for the purpose of preventing the loss of heat by
radiation, and especially to such covering consisting of what is known as silicate
cotton, or mineral wool.
Such materials when used for the purpose described, have ordinarily been made
of a sufficient thickness of the non-conducting material placed round the pipe or
heated surface to be covered, and retained in its position by an outer covering of
canvas, or other like woven fabric.
I have found, however, that especially for covering steam pipes in engine
rooms or upon boilers, an objection exists to the covering made as described, in the
liability of the outer canvas covering to be burned, or destroyed by overheating,
and so allow the non-conducting material to escape, and become useless for the
purpose required.
My present invention consists essentially in making the outer flexible covering
by which the non-conducting material is retained in place, of an incombustible
material such as asbestos cloth.
For this purpose, I take a strip of asbestos cloth of sufficient strength, and of
suitable width and length, and upon it I place a layer of sufficient thickness of
silicate cotton, which I attach to the cloth by stitching or quilting, preferably
with asbestos thread, and I wind the compound strip so formed helically round the
steam pipe, the cover of asbestos cloth being outside, and I retain the compound
covering in its place by sewing or by wires, or other equivalent means.
The outer asbestos cloth may be painted or otherwise finished, and being
incombustible, its durability is very great, and it is capable of remaining service-
able upon the pipe which it protects, for a very long period.
The non-conducting material is itself also, of course, incombustible. Transverse
or inclined angular notches may be made across it, to facilitate its bending in
fitting it round the pipe.
Instead of strips made and prepared as described, similar compound sheets of
suitable size and shape may be used for covering different surfaces, and instead of
asbestos cloth, other textile fabrics rendered incombustible in any of the well-
known ways may be used.
The non-conducting material may be used of any desired thickness, according
to the degree of heat of the pipe or other surface which it is to protect, and
according to the purpose for which it is to be used.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
In coverings used upon steam pipes and other heated surfaces, for the purpose
of preventing the loss of heat by radiation, the use of asbestos cloth or other
incombustible fabrics as an outer cover for such coverings substantially as
described.
EDWARDS & Co.,
65 & 66, Chancery Lane, London, Agents for the Applicant.