Improvements in the Method and Apparatus for the Production of Yarn Rovings or Slubbings.
Year: 1899

page_text: Date of Application, 29th May, 1899
Complete Specification Left, 24th Feb., 1900-Accepted, 21st Apr., 1900
Improvements in the Method and Apparatus for the Production of
Yarn Rovings or Slubbings.
I, STANISLAW LORENTZ, of No. 140, Zegrzanska Street, Zgierz, Russian Poland,
Manufacturer of Woollen Goods, do hereby declare the nature of this invention
to be as follows:-
This invention relates to the manufacture of carded yarn rovings or slubbings
of wool such as are known in Germany as Halb Kammgarn "and to carded
yarn of cotton or a mixture of wool and cotton, with, or without, admixture
with other materials. The object of this invention being to provide a simple
and inexpensive process whereby large yield and full and soft rovings or slub-
bings, of good quality are obtained.
The process is such that stretching and doubling of fine rovings by flyers
is dispensed with, whereby the first spinning process is not only simplified, but
also a considerable reduction in cost and labour is effected. The opened and
loosened material being operated upon after being subjected to the action of the
carding machines (usually three, the material being conveyed from one to the
other by travelling bands) is, according to this invention, conducted from the
last carding machine through a set of drawing or stretching rollers, inserted
between the aprons of the fleece divider and the roving or slubbing spools.
The material passing out from between the aprons of the fleece divider is
passed between the drawing or stretching rollers and is thence passed through
funnel-shaped whirls serving to impart to the doubled and stretched material
the required twist prior to its being wound upon spools. For the purpose of
properly winding the rovings or slubbings on the spools they and their rollers
are moved to and fro relatively to the whirls, or the thread guides are moved
to and fro relatively to the spools, so that each roving or slubbing is wound
transversely upon its spool. The rovings or slubbings thus produced can be
then directly spun upon ring spinning machines.
If finer numbers of yarn roving or slubbing are to be produced, then, a second
similar arrangement for stretching and twisting can be used before final spin-
ming, instead of using one only as previously described, without departing from
the nature of the invention.
JOHNSONS & WILLCOX,
47, Lincoln's Inn Fields, London, W.C., Agents.

page_text: COMPLETE SPECIFICATION.
Improvements in the Method and Apparatus for the Production of
Yarn Rovings or Slubbings.
I, STANISLAW LORENTZ, of 140, Zegrzanska Street, Zgierz, Russian Poland,
Manufacturer of Woollen Goods, 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 the manufacture of carded yarn rovings or slubbings
of wool such as are known in Germany as Halb Kammgarn" and to carded
yarn of cotton or a mixture of wool and cotton, with or without, admixture
with other materials. The object of this invention being to provide a simple
and inexpensive process whereby large yield and full and soft rovings or slub-
bings, of good quality are obtained.
In the accompanying drawing the invention is presented in a side elevation.
The process is such that stretching and doubling of fine removings by flyers
is dispensed with, whereby the first spinning process is not only simplified, but
also a considerable reduction in cost and labour is effected. The opened and
loosened material being operated upon after being subjected to the action of the
carding machines (usually three, the material being conveyed from one to the
other by travelling bands) is, according to this invention, conducted from the
last carding machine through the mechanism as represented in the accompanying
drawing consisting of a set of drawing or stretching rollers a, b, c, inserted
between the aprons of the fleece divider and the roving or slubbing spools.
The material passing out from between the aprons H of the fleece divider
is passed between the drawing or stretching rollers a, b, c and is thence
passed through funnel-shaped whirls serving to impart to the doubled and
stretched material the required twist prior to its being wound upon the
spools e. For the purpose of properly winding the lovings or slubbings
on the spools they and their rollers are moved to and fro relatively to the
whirls or the thread guides are moved to and fro relatively to the spools, so
that each roving or slubbing is wound transversely upon its spool. The roving
or slubbings thus produced can be then directly spun upon spinning machines.
If finer numbers of yarn roving or slubbing are to be produced, then a second
similar arrangement for stretching and twisting can be used before final spin-
ning, instead of using one only as previously described, without departing from
the nature of this invention.
Having now particularly described and ascertained the nature of this inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is:
1. The production of yarn rovings or slubbings by passing the material from
the fleece divider through drawing or stretching rollers, then through whirls,
by which it receives the necessary twist, and then winding it upon a number of
roving or slubbing spools after which it can be spun upon spinning machines,
substantially as herein before described.
2. In apparatus for the process referred to in the preceding claiming clause
the interposition between the aprons of the fleece divider and the roving or slub-
bing spools of a set of drawing or stretching rollers of whirls, all substantially
as herein before described.
Natal thi 944h low of W 1000
JOHNSON & WILLCOX,
47, Lincoln's Inn Fields, London, W.C., Agents.