AN IMPROVED INSULATING COVERING OR JACKET FOR STEAM PIPES OR OTHER APPARATUS
Year: 1875

page_text: LETTERS PATENT to John Clayton Mewburn, of 169, Fleet Street,
in the City of London, Patent Agent and Consulting Engineer,
for the Invention of "AN IMPROVED INSULATING COVERING OR JACKET
FOR STEAM PIPES OR OTHER APPARATUS." -A communication from
abroad by Charles Gav. of Catcau Nord. France.
PROVISIONAL SPECIFICATION left by the said John Clayton Mewburn
at the Office of the Commissioners of Patents, with his Petition,
on the 29th June 1875.
I, JOHN CLAYTON MEWBURN, of 169, Fleet Street, in the City of
London, Patent Agent and Consulting Engineer, do hereby declare the
nature of the said Invention for "AN IMPROVED INSULATING COVERING OR
JACKET FOR STEAM PIPES OR OTHER APPARATUS," to be as follows:-
-
This Invention consists of an improved insulating covering or jacket for
steam pipes or other apparatus, that is to say, a covering or jacket to pre-
vent the loss or transmission of heat through the sides of such pipes or
apparatus. The improved covering is composed of a number of bars of

page_text: wood or other suitable insulating body fixed side by side upon a foundation
of cloth or thin metal. The bars may be secured to the foundation by
pasting, nailing, or screwing, and their sides should be inclined to allow
of their being wrapped round the pipe or other apparatus to which they
are to be applied. When in place upon the pipe the jacket may be a
secured by means of a lath which is attached to the opposite face of the
cloth along one side thereof. This lath, when the jacket is on the pipe,
overlaps one of the bars and is fastened thereto by screws, hooks, or
wires, thereby holding all the jacket in place. The bars may be
connected together by hinges or small wire hooks; or the cloth foun- 1
dation may be replaced by ribbons or bands or by strips of thin
metal.
In addition to the cheapness of this jacket or covering as compared
with other modes of insulating pipes or other apparatus, it has the
additional advantages of being easy to remove and replace in case of 1
need, of being very durable, and of being efficient and simple.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said John Clayton Mewburn in the Great Seal Patent
Office on the 22nd December 1875.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
CLAYTON MEWBURN, of 169, Fleet Street, in the City of London,
Patent Agent and Consulting Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-ninth day of June, in the year
of our Lord One thousand eight hundred and seventy-five, in the thirty-
ninth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said John Clayton Mewburn, Her special
licence that I, the said John Clayton Mewburn, my executors, admini-
strators, and assigns, or such others as I, the said John Clayton
Mewburn, 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 "AN IMPROVEd Insulating COVERING OR JACKET FOR STEAM {

page_text: PIPES OR OTHER APPARATUS," (a communication to me from abroad by
Charles Gay, of Cateau, Nord, France,) upon the condition (amongst
others) that I, the said John Clayton Mewburn, 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 John Clayton Mewburn, 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 thereof, reference being had to the
accompanying Drawings, that is to say :-
This Invention consists of an improved insulating covering or jacket
for steam pipes or other apparatus, that is to say, a covering or jacket
to prevent the loss or transmission of heat through the sides of such
pipes or apparatus. The improved covering is composed of a number
of bars of wood or other suitable insulating body fixed side by side
upon a foundation of cloth or thin metal. The bars may be secured to
the foundation by pasting, nailing, or screwing, and their sides should
be inclined to allow of their being wrapped round the pipe or other
apparatus to which they are to be applied. When in place upon the
pipe the jacket may be secured by means of a lath which is attached to
the opposite face of the cloth along one side thereof. This lath, when
the jacket is on the pipe, overlaps one of the bars and is fastened
thereto by screws, hooks, or wires, thereby holding all the jacket in
place. The bars may be connected together by hinges or small wire
hooks, or the cloth foundation may be replaced by ribbons or bands or
by strips of thin metal.
In addition to the cheapness of this jacket or covering as compared
with other modes of insulating pipes or other apparatus, it has the
advantages of being casy to remove and replace in case of need, of being
very durable, and of being efficient and simple.
Figure 1 of the annexed Drawings represents one mode of making
the improved jacket or covering, and Figure 2 shows the same applied
to a nine

page_text: A, A, are a number of bars of wood or other suitable insulating
material secured by pasting or otherwise to a foundation B of cloth or
other suitable material; C is a lath which, when the jacket is applied to
a pipe D, Figure 2, overlaps one of the bars A, as shewn, and by
fastening this lath to the said bar by screws or otherwise the jacket is
held in place. The foundation B may be either outside or inside, as
preferred.
And having now described the nature of the said Invention, and in
what manner the same is to be performed, I declare that I claim,
manufacturing insulating coverings or jackets for steam pipes or other
apparatus, substantially as herein-before described and represented in
the accompanying Drawings.
In witness whereof, I, the said John Clayton Mewburn, have here-
unto set my hand and seal, this Twenty-second day of December,
One thousand eight hundred and seventy-five.
1
J. C. MEWBURN. (L.S.)