Improved Heat-resisting and Non-conducting Lining or Surface.
Year: 1890

page_text: Date of Application, 28th Feb., 1890
Complete Specification Left, 18th Nov., 1890-Accepted, 20th Dec., 1890
PROVISIONAL SPECIFICATION.
Improved Heat-resisting and Non-conducting Lining or Surface.
I LOUIS D'EMILE MULLER, Manufacturer of Ceramic Products of No. 6 Rue
Nationale, Ivry Port (Seine) France do hereby declare the nature of this invention to
be as follows:-
The object of my invention is an improved heat resisting lining resulting from a new
mode of application of mineral cotton ("mineral wool") or scoria wool the non-
conducting properties of which are well known and have already been utilised.
Up to the present mineral cotton has been generally used to forin plates or bands
and it was fixed for that purpose upon coarse canvas or metallic trellis. But when
fitted up this kind of lining or of garniture in order to be protected from external
causes of deterioration had to be provided with some kind of protecting covering such
as for instance a covering of sheet metal.
Now my present invention is designed to dispense with such covering and for that-
purpose I fix the mineral cotton etcetera direct upon sheets of thin metal which
constitute the outer face of the lining when the latter is put in its place. It will be
understood that the fixing may be effected in any manner but I find it advantageous
to use metallic wires passing into holes pierced in the sheet metal and thus constituting
a regular stitching which keeps the mineral cotton in its place.
I can make according to my said invention plates of any suitable dimensions and
forms or strips of any breadth intended to be used or pieces of various forms according
to the use desired to be made of the heat resisting garniture.
In order to make myself clearly understood I have shown in the accompanying
drawings but only by way of example various modes of carrying out and applying my
invention.
Figure 1 shows a side view in elevation of a heat resisting plate arranged according
to my present invention.
Figure 2 shows a plan view of the underside thereof.
Figure 3 represents a section along the line 1-2 of Figures 1 and 4.
Figure 4 is a plan view of a portion of the complete plate from above.
Figure 5 is a plan view of a portion of a heat resisting strip on my system from
above.
Figure 6 shows a view of the same the mineral cotton being supposed to be
removed.
In all these figures the same reference letters designate the same parts.
My system of heat resisting plate (Figures 1 to 4) is constituted by a thin sheet of
metal a on which the material is arranged for instance in parallel rows or strips 6.
These rows of mineral cotton are held by means of metallic or other wires c which pass
through holes d pierced in the plate a.
It will be understood that the form and arrangement of the strips of mineral
cotton b can vary as also those of the wires c without the nature of my invention
being thereby changed.
The heat resisting strip intended to serve especially for conduit pipes consists as is
shown in Figures 5 and 6 of a band of sheet metal e on which the mineral cotton is
arranged in independent bundles f held upon the band of sheet metal by wires
passing through holes h made in the said band e.
As I have already said my invention may also be applied to the formation of heat
resisting pieces of any form and any dimension and I reserve to myself the right of

page_text: varying the detail dispositions thereof according to the various applications which may
be met with in practice.
Dated this 28th day of February 1890.
TONGUE & BIRKBECK,
34, Southampton Buildings, Chancery Lane, London, W.C.,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improved Heat-resisting and Non-conducting Lining or Surface.
I, LOUIS D'EMILE MULLER, Manufacturer of Ceramic Products, of No. 6 Rue
Nationale, Ivry Port (Seine) France, 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 :—
My invention has for its object improvements in heat resisting lining or coating
which is formed by a new method of applying slag wool or mineral cotton or
scoria wool which has been hitherto utilized owing to its being a bad conductor
of heat.
Heretofore slag wool has been generally used to form bands or plates and it was
fixed for that purpose upon coarse linen or wire trellis. But when thus fixed in position
this kind of lagging or packing had to be covered in order to be protected from
external deteriorating causes, with a suitable protective envelope such for instance, as
a sheet metal covering.
My invention consists in dispensing with this second envelope and in fixing for
this purpose the slag wool directly upon thin iron or other sheets forming the outside
surface of the coating or lagging, when the latter is fixed in position. It will be easily
understood that this mode of fixing may be carried out in any convenient manner,
but advantageously I use metallic wires passing through perforations formed in the
sheet metal thus making a seam which holds the slag wool firmly in its place.
According to my invention I form plates of varying shape and dimensions, bands
or ribbons of any desired width suitable for being wound upon pipes or conduits, also
pieces of different shape according to the use for which the heat preserving packing or
coating is intended.
In order to render my invention more fully understood 1 have shown the same
(by way of example only) in the accompanying drawings in which various applications
or modes of carrying my invention into practice are illustrated.
Fig. 1 is a side view of a heat preserving plate constructed according to my
invention.
Fig. 2 is an underside view of a portion of the same.
Fig. 3 shews a section on line 1-2 of Figs. 1 and 4.
Fig. 4 is a top view of a part of the plate.
Fig. 5 is a top view of a portion of a heat preserving band or ribbon arranged
according to my invention.
Fig. 6 is a view of the same in which the slag wool is removed.
Like letters of reference indicate corresponding parts throughout the figures.
My improved heat preserving plate (Figs. 1 to 4) is formed of thin sheet iron a
upon which the non-conducting material is arranged in parallel rows bands or bars b
for example.
These rows of slag wool are held by metallic or other wires c which pass through
holes d formed in the plate a.
It will be obviously understood that the form and arrangement of the slag wool
bands may vary as well as that of the wires c without departing from the nature of
my invention.
The heat preserving band or ribbon particularly designed for use over supply
and other pipes consists, as clearly shown in Figs. 5 and 6, of a sheet iron
band e upon which the slag wool is arranged in separate portions or tufts ƒ held upon

page_text: the said sheet iron band by wires 9 passing through holes formed in the said
band e.
The thin iron sheets used in the formation of my improved heat preserving coatings,
packings or laggings, may be of any suitable metal, but in order to prevent them
from deteriorating I prefer using galvanized metal or metal which is rendered
unoxidizable by the deposit thereon of any suitable protective layer, whether varnish,
metal or the like.
As above stated my invention may be applied to the construction of heat preserving
pieces or surfaces of every description and dimensions and I may vary the details
thereof according to requirements.
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 1
claim is,
1. Heat preserving coatings or laggings formed of a slag wool cushion or of a
padding of other equivalent material fixed upon a plate of thin sheet iron advan-
tageously galvanized, varnished or rendered unoxidizable in any suitable manner
substantially as above described and for the purpose set forth.
2. The arrangement of a heat preserving coating plate formed of a thin iron
sheet a advantageously galvanized and carrying rows of slag wool or other heat
preserving material held by wires c, substantially as herein described with reference
to Figs. 1, 2, 3 and 4 of the drawings, and for the purpose set forth.
3. The heat preserving band or ribbon formed by the combination of a sheet iron
band e advantageously galvanized, carrying separate portions, tufts, or packets of slag
wool or other equivalent heat preserving material held by wires g, substantially as
herein described with reference to Figs. 5 and 6 of the drawings, and for the purpose
set forth.
Dated this 18th day of November 1800.
TONGUE & BIRKBECK,
34, Southampton Buildings, Chancery Lane, London, W.C.,
Agents for the Patentee.