New Method of Utilizing Cork Refuse.
Year: 1899

page_text: Date of Application, 1st June, 1899-Accepted, 29th July, 1899
COMPLETE SPECIFICATION.
New Method of Utilizing Cork Refuse.
I, HEINRICH BREMER, of 14, Domshof, Bremen, in the Empire of Germany,
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:--
This invention relates to a new method of advantageously utilizing cork
refuse such as corks that have been used, cork chips and the like and has for
object to employ said materials in the manufacture of eminently useful and
efficient underlayers or backings for a great variety of articles, such for instance
as linoleum, oilcloth, felt and other carpets, mattings, paper hangings and other
wall coverings, fabrics used for sundry purposes, and many others. Or the said
material may be made into pasteboards or the like for use in the manufacture of
boxes and similar articles.
In preparing the raw material for practical use it is first reduced to small pieces
and finely divided into particles by means of suitable machinery, it being of
importance that the particles are as nearly as possible equal in size.
The pro-
duct resulting from the disintegrating process is then mixed with a convenient
binding medium to such consistency and density as may be found most suitable
for the particular purpose to which the compound is to be applied.
The compound is then spread on or applied to the reverse side of the material
to which it is to form a backing or underlayer, care being taken that the layer
is of uniform thickness in all parts, and presses or rollers are employed to effect
a firm union between the material and its backing. The pressing process has to
be continued for a shorter or longer period according to the thickness of the
layer of compound, until the latter has hardened and forms a firm and even
lining. An underlayer or backing so prepared serves as a highly efficient
isolation against moisture, draught, and sound, is very durable and clean, and a
bad conductor of heat or cold.
Referring to the accompanying drawing, the figure shown illustrates in section
a piece of oilcloth or similar material backed by a layer of cork compound: « is
the cloth and b the cork backing.
**
"
As binding medium for hard and strong underlayers or backings I prefer
to employ a substance in powder form, commonly called Lacteine' while in
cases where a softer and more yielding underlayer is required, I use a weaker
binding substance such as caseine in powder or other form to preserve the
natural elasticity of the cork material. If necessary or advisable other substances
such as lime or silicious solutions may be added. Other binding mediums such
as resinous, india rubber, soluble pyroxyline and similar preparations may be
used.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is: -
A now or improved method of utilizing cork refuse in combination with a

page_text: suitable binding medium for the manufacture of underlayers, backings or linings
of floorcloths, carpets, mattings, wall covers and the like, substantially as and for
the purpose described, and illustrated in the accompanying drawing.
Tatal thin lot love of Tuna 1900