Improvements in and relating to the Manufacture of Fabrics.
Year: 1897

page_text: Date of Application, 30th Sept., 1897-Accepted, 14th May, 1898
COMPLETE SPECIFICATION.
Improvements in and relating to the Manufacture of Fabrics.
I, FRIEDRICH HOLTSCHMIDT, of 23, Breite Strasse, Brunswick, in the Empire
of Germany, Merchant, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:-
-
The present invention relates to the manufacture of a fabric or material which
is extremely suitable for use as a cheap packing material for cement, plaster of
Paris, artificial manure and other similar and pulverulent substances.
The new fabric material is made by applying soft paper pulp by mechanical
means upon a woven fabric, preferably a fabric woven from jute or flax, and
pressing said paper pulp into the said woven fabric by means of rolls so as thus
to become intimately combined therewith.
The process of manufacture consists in applying soft paper pulp separately to
both sides of the woven fabric whilst it is in a stretched condition. By thus coat-
ing the woven fabric on both sides, the paper pulp may be supplied thinly and
uniformly whilst the stretching of the fabric previous to coating prevents the
finished material afterwards losing its flexibility and becoming stiff inasmuch as
the paper pulp and fabric then possess approximately equal extensibility.
The fabric or material treated or produced in this manner is made up into
sacks which are consequently very cheap to produce and are very advantageous
for packing pulverulent substances such as cement, plaster of Paris, and artificial
manures, as they are practically impervious to such substances.
The accompanying drawing illustrates the manner in which the process of
manufacture is carried into effect.
In the accompanying drawing, a represents the soft paper pulp with which the
carried down two
woven fabric is to be coated and d the fabric itself. The pulp
vibrating inclines b and c towards the conveying cloths and respectively,
which cloths are carried and moved by revolving drums and rollers. The fabric d
to be coated after passing over the rollers e is carried along with the upper convey-
ing cloth and receives the coating of paper pulp on its upper surface. The
fabric next passes in contact with the lower conveying cloth 61 and receives from
it a coating of pulp on its under face. The fabric finally is passed between com-
pressing cylinders in order to press the pulp into the fabric so as to become
associated with it.
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 I
claim is:-
1. Process for covering or coating woven fabrics with paper pulp character-
ized by the fact that the paper pulp is applied by mechanical means upon the
fabric and is intimately connected or combined therewith by means of rolls sub-

page_text: 2. Fabric or material substantially as hereinbefore described with reference
to the accompanying drawings.
T1
قيم
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1000
MARKS & CLERK,
18, Southampton Buildings, London, W.C., and
13, Temple Street, Birmingham, Agents.