Improvements in Heat Non-conducting Coverings.
Year: 1895

page_text: Date of Application, 19th Dec., 1895
Complete Specification Left, 8th Sept., 1896-Accepted, 24th Oct., 1896
PROVISIONAL SPECIFICATION.
Improvements in Heat Non-conducting Coverings.
I, JOSEPH CORRIE STRUTHERS MCLAY of 10 Mexfield Road Putney in the
County of Surrey do hereby declare the nature of this invention to be as
follows:-
The object of my invention is to produce a light uncharable covering for the
prevention of the radiation of heat from boilers, receivers, cylinders condensors,
feed water heaters, tanks and other vessels and which covering can be not only
easily applied but easily removed and replaced. To effect this object I use asbestos
papier mâché or asbestos millboard or paper millboard rendered incombustible by
chemical process of any required thickness, and in this papier mâché or millboard I
make holes of any required size at any required distance and these holes I afterwards
cover with asbestos or other uncharable material, the object being to have in my non-
conducting covering cellular air spaces. On that side of the millboard which is to
be placed next to the boiler or other vessel I place distance pieces made of a
similar material, and in a similar manner so as to form air spaces between the
boiler or other vessel and the covering the size of these air spaces being thus
determined by the thickness or depth of these distance pieces. The covering is
also applicable to refrigerating and cold water vessels.
Dated this 18th day of December 1895.
Improvements in Heat Non-conducting Coverings.
I, JOSEPH CORRIE STRUTHERS MCLAY of 10 Mexfield Road Putney in the
County of London 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 my invention is to produce a light uncharable covering for the
prevention of the radiation of heat from boilers, receivers cylinders, condensers feed
water heaters tanks and other vessels and which covering can be not only easly
applied but easily removed and replaced.
To effect this object I use asbestos papier mâché or millboard or paper, or
ordinary papier mâché or millboard or paper which has been previously rendered
incombustible. The asbestos materials I sometimes use in combination with these
ordinary materials. The asbestos or other ordinary materials as hereinbefore
described I make up into sheets of any required thickness and in them I form a
number of air spaces preferably by punching holes in them of any required sizes
at any required distances apart, and these hoies I cover over with asbestos, or
other uncharable material. On that side of this covering which is to be placed
next to the boiler or other vessel to be covered I place distance pieces made of a
similar material and in a similar manner as the sheets above described so as to form
air spaces between the boiler or other vessel and the sheets.

page_text: The size of the air spaces is determined by the thickness of the distance pieces.
The covering as described is applicable to refrigerating and cold water vessels.
Having now particularly described and ascertained the nature of my said inven-
tion and in what mannor the same is to be performed I declare that what I
claim is―
The use of a heat non conducting covering having cellular air spaces in the
covering, and with distance pieces between the covering and the vessel to be
covered so as to form further nir spaces, constructed in the manner substantially
set forth and described.
1000
JOSEPH C. S. MºLAY.