Improvements in the Process and Apparatus for Producing Roving from Fibrous Materials.
Year: 1892

page_text: Date of Application, 8th Mar., 1892
Complete Specification Left, 14th Nov., 1892-Accepted, 7th Jan., 1893
PROVISIONAL SPECIFICATION.
Improvements in the Process and Apparatus for Producing Roving
from Fibrous Materials.
I, GUSTAV TÜRK of Lend Gastein, in the Empire of Austria, Works-manager,
do hereby declare the nature of this invention to be as follows:-
My invention relates to a process and an apparatus for producing roving from the
fibrous materials worked in the spinning and paper industries, such as rags, half
stuff, wood cellulose, asbestos etc. The fibrous materials are first treated in the
usual manner, for instance in the rag-engine that is to say, they are first macerated
or decomposed and thereupon passed through a specially constructed machine,
where they are formed into stripes or slips; the latter, after being freed of the
largest portion of the water adhering to the same, are passed through a set of
rollers, where they are rolled up in their length, and thus the loose threads of yaru
called roving are obtained.
The novel feature of my improved process and of the apparatus employed
therefor is, that the fibrous materials suspended in water are not worked on the '
whole length of the sieve-roll in use for this kind of processes, so as to form a
broad gauze, but are immediately separated in stripes of suitable breadth, which..
form each a thread of roving after being rolled up. Thus I dispense entirely with
the gauze-divider which was necessary hitherto, and employ a sieve-roll having a
sieve not on its whole mantle, but only several stripes of sieves, as more clearly,.
shown hereinafter.
The better to make my meaning clear, I will proceed to describe an apparatus
constructed according to my improvements, referring to the accompanying drawing,
on which:
Fig. 1 is an upper view of the apparatus,
Fig. 2 is a side elevation of the same,
Fig. 3 is a separate front elevation of the sieve-roll R,
Fig. 4 a partial detail view of the same, drawn to an enlarged scale,
Fig. 5 is a detail view of part of the scraper S.
Similar letters refer to similar parts throughout the several views.
The sieve-roll R is placed in the vat V and may be rotated by means of an axle
supported in bearings B. The stuff or material to be worked is brought into the
vat V at C, and in consequence of the rotation of the sieve roll R and the stirring-
wheels W is drawn toward the said sieve-roll following the path indicated by
arrows on Fig. 2. Now the construction of the sieve-roll R is such (Fig. 4) that
narrow stripes 1, 2, 3, 4 of material acting as a sieve, such as wire gauze, alternate
with stripes R¹ of solid material, for instance sheet-metal. In consequence of this
construction of the sieve-roll R the fibrous or pulpy material adheres only to the
stripes 1234, the stripes R' remaining uncovered. The continuous movement of the
water in the vat V contributes to remove all fibres extending beyond the edges of
the stripes 1 2 3 4, and the thickness of the stripes of paper or fibrous material
adhering thereto is thereby increased toward the edge. The stripes T¹ T' etc.
formed in this manner are then taken off the sieve-roll R in the usual manner
by means of a band of felt F and brought between the pressure rollers D D',
where the water is squeezed out of the same. The stripes of paper or fibrous.
material adhere to the smooth upper roller D. They are then taken off this
roller by scrapers S of the coomb-like shape shown at Fig. 5 and hereafter pass
between the rollers N N¹ where they are rolled up in their length. On Fig. 2
I have shewn two sets of rollers N N³, but one set may be sufficient in some
cases, whereas in other cases more may be employed. The remaining parts of.

page_text: the apparatus are the usual ones. The stripes rolled up by the rollers N N¹ are
wound on the reels PP and then employed as roving in the usual manner. The
rollers N N are covered with. a water-tight layer of india-rubber.
The band
of felt F is passed over guide-rolls E E back to the sieve-roll R as shewn at
Fig. 2.
I may of course also employ a sieve-roll having a sieve on its entire mantle,
and only cover the stripes designated by R on Fig. 4 with an impervious material.
The main feature of my invention is the arrangement of separate stripes of sieves
on the sieve-roll R, and the process of forming separate stripes of fibrous material
directly on the said sieve-roll R.
Dated this 8th day of March 1000
COMPLETE SPECIFICATION.
Improvements in the Process and Apparatus for Producing Roving
from Fibrous Materials.
1, GUSTAV TÜRK, of Lend Gastein in the Empire of Austria, Works-manager
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 a process and an apparatus for producing roving from the
fibrous materials worked in the spinning and paper industries, such as rags, half
stuff, wood cellulose, asbestos, etc. The fibrous materials are first treated in the
usual manner, for instance in the rag-engine; that is to say, they are first macerated
or decomposed and thereupon passed through a specially constructed machine,
where they are formed into stripes or slips the latter, after being freed of the
largest portion of the water adhering to the same, are passed through a set of
rollers, where they are rolled up in their length, and thus the loose threads of yarn
called roving are obtained.
The novel feature of my improved process and of the apparatus employed
therefor is, that the fibrous materials suspended in water are not worked on the
whole length of the sieve-roll in use for this kind of processes, so as to form a
broad gauze, but are immediately separated in stripes of suitable breadth, which
form each a thread of roving after being rolled up. Thus I dispense entirely with
the gauze-divider which was necessary hitherto, and employ a sieve-roll having a
sieve not on its whole mantle, but only several stripes of sieves, as more clearly
shown hereinafter.
The better to make my meaning clear, I will proceed to describe an apparatus
constructed according to my improvements, referring to the drawing left with
Provisional Specification, in which :
Fig. 1 is an upper view of the apparatus,
Fig. 2 is a side elevation of the same,
Fig. 3 is a separate front elevation of the sieve-roll R,
Fig. 4 a partial detail view of the same, drawn to an enlarged scale,
Fig. 5 is a detail view of part of the scraper S.
Similar letters refer to similar parts throughout the several views.
The sieve-roll R is placed in the vat V and may be rotated by means of the
axle A supported in bearings B. The stuff or material to be worked is brought
into the vat at C, and in consequence of the rotation of the sieve roll R and the
stirring wheels W is drawn toward the said sieve-roll following the path indicated
by arrows in Fig. 2. Now the construction of the sieve-roll R is such (Fig. 4),
that narrow stripes 1, 2, 3, 4 of material acting as a sieve, such as wire-gauze,
alternate with stripes R₁ of solid material, for instance sheet-metal. In consequence
L.L

page_text: of this construction of the sieve-roll R, the fibrous or pulpy material adheres only
to the stripes 1, 2, 3, 4, the stripes R remaining uncovered. The continuous
movement of the water in the vat V contributes to remove all fibres extending
beyond the edges of the stripes 1, 2, 3, 4, and the thickness of the stripes of paper
or fibrous material adhering thereto is thereby increased toward the edge. The
stripes T¹ T etc. formed in this manner are then taken off the sieve-roll R in the
usual manner by means of a band of felt F and brought between the pressure
rollers D D', where the water is squeezed out of the same.
The stripes of paper
or fibrous material adhere to the smooth upper roller D. They are then taken off
this roller by scrapers S of the coomb-like shape shown at Fig. 5 and hereafter
pass between the rubbers N N¹ where they are rolled up in their length. On Fig. 2
I have shown two sets of rubbers N N', but one set may be sufficient in some
cases, whereas in other cases more may be employed. The remaining parts of the
apparatus are the usual ones. The stripes rolled up by the rubbers N N¹ are
wound on the reels P P and then employed as roving in the usual manner. The
rubbers N N are covered with a water-tight layer of india-rubber. The band
of felt F is passed over guide-rolls E E back to the sieve-roll R as shown at
Fig. 2.
may of course also employ a sieve-roll having a sieve on its entire mantle, and
only cover the stripes designated by R' on Fig. 4 with an impervious material.
The main feature of my invention is the arrangement of separate stripes of sieves
on the sieve-roll R, and the process of forming separate stripes of fibrous material
directly on the said sieve-roll R.
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. The hereinbefore described process for producing roving from fibrous materials,
consisting essentially in forming the said materials, suspended in water, directly
into stripes, and rolling the same into threads, for the purpose set forth.
2. In a machine for producing roving from fibrous material: The sieve-roll R,
having circumferential stripes 1, 2, 3, 4 of a material acting as a sieve, alternating
with stripes R of solid material, substantially and for the purpose as described.
3. In a machine for producing roving from fibrous materials: The sieve-roll R,
having circumferential stripes 1, 2, 3, 4 of wire-gauze, alternating with smooth
stripes of a solid material, substantially and for the purpose as described.
Dated this 12th day of August 1892.
GUSTAV TÜRK,
By Robert Deissler,
Agent for the Applicant.