Improvements in or relating to the Manufacture of Felt.
Year: 1889

page_text: Date of Application, 21st Aug., 1889-Accepted, 21st Sept., 1889
COMPLETE SPECIFICATION.
Improvements in or relating to the Manufacture of Felt.
We, JOHN HOLDEN of 475 Spring Bank View, Paper Maker, and JOHN RICHARD
JEPSON of 17 Trinity Terrace, Cashier, both of Darwen in the County of Lancaster,
do hereby declare the nature of our said 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 improvements in or relating to the manufacture of felt
made from Cork, Sponge, Woollen, Cotton, Jute, Hemp, Wood-fibre, or other similar
substances, and consists in means for strengthening the same without interfering with
its pliability or softness, at the same time making it more durable and less liable to
break. This invention consists of an improvement of the present method of lining or
coating felt with muslin gauze, open calico, cloth, or other similar material for the
purpose of strengthening felt. The ordinary method of lining or coating felt with
muslin gauze, open calico, cloth, or other similar material, is by laying the muslin
gauze, open calico, cloth, or other similar material upon the felt when the felt has
been completely manufactured, and by fixing the same thereto with gum, paste, or other
similar adhesive matter. This is an operation subsequent to and distinct from the
manufacture of the felt, and involves the employment of persons other than those
engaged in the manufacture of the felt, and also the use by them of gum, paste, or
other similar adhesive matter. The necessity for any distinct operation is obviated
and additional advantages gained in our invention by applying the muslin gauze,
open calico, cloth, or other similar material to the felt during the process of the
manufacture of such felt by means of a "one-sided or other felt-making machine
at any of the moist or pulpy stages of the felt in course of manufacture, so that the
muslin gauze, open calico, cloth, or other similar material, becomes pressed upon the
surface of the felt in the course of its manufacture.
وو
In carrying out our invention the felt is lined or coated on the outside with muslin
gauze, open calico, cloth, or other similar material in its moist or pulpy state in the
course of manufacture in the machine. The muslin gauze, open calico, cloth, or other
similar material we mount on reels or their equivalents, from whence they can be run
off upon the felt in any of its moist or pulpy stages, and either between the felt and
wet felt or suction box immediately after the felt leaves the couch roll, or between the
felt and the drying cylinder, by either of which means, and without any other altera-
tion in the process of manufacture of the felt, the muslin gauze, open calico, cloth, or
other similar material and the felt are so pressed together that they firmly adhere and
can be used as one material. They are then carried together round the drying
cylinder of the machine where the felt is dried in the ordinary manner, together with
the muslin gauze, open calico, cloth, or other similar material.
If it is desired to produce felt with an internal lining of muslin gauze, open calico,
cloth, or other similar material, this can be obtained by reeling off the lined or
coated felt when finished as before described, and again applying the muslin or
coated side of it similarly to felt in the course of manufacture, so as also to face the
muslin or coated side with felt.
In another modification of our invention we strengthen felt by inserting wire,
cotton, or other threads into the felt in its moist or pulpy state in the course of
manufacture in the machine. The wire, cotton, or other threads we mount on reels
or their equivalents disposed betwixt the picker and suction box or in any other
convenient position on the machine, from whence they can be run off into the felt
in any of its moist or pulpy stages, in a straight line or in a zig-zag line, the latter
being for the purpose of preventing the said wire, cotton, or other threads being
withdrawn after manufacture is completed. To place the wire, cotton, or other

page_text: threads in a zig-zag line through the felt a lateral to and fro motion is given to the
reels or their equivalents by any suitable mechanical means. If desired the reels or
their equivalents can be stationary laterally, the zig-zag motion being effected by
the wire, cotton, or other thread's passing through a guiding plate or its equivalent,
with a lateral to and fro motion produced by mechanical or other means:
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is:
1. The production of muslin or similarly lined or coated felt without any operation
subsequent to, or distinct from, the manufacture of such felt.
2. The production of such muslin or similarly lined or coated felt by introducing
the muslin or other similar material, and applying it to the felt in the early stages of
the manufacture of such felt.
3. The production of felt wherein wire, cotton, or other threads in straight or in
zig-zag lines are inserted in the moist or pulpy state in the early stages of the manu-
facture of such felt.
4. The production of such muslin or similarly lined or coated felt in the manner
herein before described, without any other change or alteration in the manufacture of
such felt than is involved in the mere introduction of the muslin or other similar
material in the manner above mentioned.
5. The production of felt wherein wire, cotton, or other threads are inserted in the
manner herein before described, without any other change or alteration in the manu-
facture of such felt than is involved in the mere introduction of the wire, cotton, or
other threads in the manner above mentioned.
Dated the 20th August 1889.
EDMUND CHADWICK,
Agent.