Year: 1898

page_text: I, JOHN SNOWDON, Jr., of Lowes Wharf, Millwall, in the County of London,
Engineer, do hereby declare the nature of this invention to be as follows —
-
My invention relates to the manufacture of incombustible floor cloth particu-
laily applicable where there is danger of fire as for instance in war or other
ships or structures mostly of wood.
For this purpose I employ a backing of woven fabric rendered incombustible
by chemical treatment, or woven preferably of asbestos which may be mixed
more or less with other incombustible fibre and on this backing I lay a paste
consisting of incombustible mineral materials such as alkaline silicates, alumina,
infusonal earth or the like with suitable agglutinating ingredients, and pigments
if desired
Dated th. 90th 1000
ABEL & IMRAY,
Agents for the Applicant.
manufacture of incombustible Flooroloth.
I, JOHN SNOWDON, Jr., of Lowes Wharf, Millwall, in the County of London,
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.-
-
My invention relates to the manufacture of incombustible or file resisting
floor cloth or covering particularly applicable where there is danger of fire as
for instance in war or other ships or structures
For this purpose I employ a backing of woven fabric such as canvas rendered
incombustible by chemical treatment, or woven of asbestos more or less mixed
with other incombustible fibre and on this backing I lay a paste or composition
consisting of incombustible mineral materials with agglutinating substances
and pigments if desired Among the incombustible materials in state of powder
may be mentioned asbestos powder and short fibie, kieselguhi, slag, talc, china
clay, or other non-combustible substances such as silicates or mixtures of silicates,
or powdered gypsum To these are added fic-proofing substances such as
ammonium sulphate, or calcium ammonium sulphate.
As agglutinating substances may be employed the mixtures known as linoleum
cements consisting of oxidised linseed oil with certain resins Also oxidised
017

page_text: linseed oil, corticine oil, india ubber or the substitutes for indiarubber or mix-
tures of these may be employed. To the agglutinating substances may be added
some materials as give certain elasticity, such as cork or wood-dust or peat
powder.
For colouring, ochres, iron oxides and other inert inorganic pigments may be
employed.
These materials, in suitable proportions are mixed as for linoleum manufac-
ture, and the mixture is applied to the backing in the same way as the ordinary
linoleum mixture and the product 18 seasoned in suitable diying stoves until
sufficiently hard
The canvas used for the backing may be fire-proofed and before seasoning the
back of the fabric may be coated with a fireproof paint consisting of pigments,
glue, or size and a fireproofing salt, rendered insoluble by the addition of
bichronate of potash.
In practice, however, it is not found absolutely necessary to fireproof the
canvas or to coat it with a fireproof paint; ordinary canvas, not fireproofed,
and the ordinary linoleum backing composition may be used, as the fireproof
face is sufficient to prevent the canvas and backing from taking fire
The following are two examples of mixtures and proportions that are found
practically useful to form the facing
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The quantity of ammonium salt 18 varied with the quantity of linoleum
cement and cork dust present being increased as they are increased.
Having thus particularly described and ascertained the nature of this in-
vention and in what manner the same is to be performed, I declare that what
I claim is
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The manufacture of incombustible on fire resisting floor cloth or covering
consisting of a suitable backing with facing materials such as are herein before
set forth, compounded and applied substantially as described.
1
1900
ABEL & IMRAY,
Agents for the Applicant.