Improvements in Carding-engines.
Year: 1894

page_text: Date of Application, 18th Apr., 1894
Complete Specification Left. 5th Feb., 1895--Accepted, 9th Mar., 1895
TRUYIOTUNAI ST MULTICATION.
Improvements in Carding-engines.
I, GOTTFRIED MEYER, of Soleure, Switzerland, Engineer, do hereby declare
the nature of this invention to be as follows:-
Carding-engines as hitherto constructed are open to objection because the quickly
rotating main-cylinder in delivering the fibrous material, has crowded it upon the
slowly rotating workers and so form knots and injure, and even break the material
under treatment.
•
The object of this invention is to obviate this drawback and this is accomplished
by treating the fibrous material in such a manner as to retain it in an extended
state from the time that it is delivered by the main-cylinder to the first worker
until it reaches the doffer.
In the accompanying illustrative drawings,
Fig. 1 shows a diagrammatic longitudinal section of an engine for carding wool,
constructed according to my invention; and
Figs. 2, 3, and 4 are detail-views to which reference will hereinafter be made.
The general arrangement of the engine is of an ordinary description with the
exception that the clearers a', a', a³ etc. are arranged before instead of behind the
workers 6, 6, 63 etc. and that the fancy roller is omitted. The principal improve-
ment however in this carding-engine consists in the fact that the main-cylinder T is
not clothed with cards but is furnished with brushes B which extend the whole
width of the cylinder T and are arranged so that the distance between any two
consecutive brushes is greater than the length of the longest fibres of the material
to be treated. Immediately behind each of the brushes B and likewise extending
completely across the whole width of the main-cylinder the said cylinder has a
slot o and through these slots air in the main cylinder T is caused to issue at a slight
pressure. In order to produce this pressure both of the end walls W of the main-
cylinder T may be provided with openings and be constructed with obliquely
arranged vanes so as to act as fans, or both of the said end-walls may be placed
in connection with a source of compressed air.
The wool is introduced in an ordinary manner by the creeper t, the taker-in v,
and the preliminary cylinder c. The tuft presented by the preliminary cylinder c
is seized at the front end by one of the brushes B of the quickly rotating main-
cylinder T, and the rear and free end of the tuft is caused, by the current of air
issuing through the slot o behind the said brush B acting in conjunction with the
centrifugal force of the tuft, to extend outward from the periphery of the cylinder
and to approach a radial position so that it will strike into the card-clothing of the
first worker b, be held thereby, and removed from the forwardly travelling brush B
in an extended state. The tuft of wool on being removed from the worker b¹ by
the clearer a' is again seized at the front end by one of the brushes B of the quickly
rotating main cylinder T and is then struck in succession into the remaining
workers,, etc. and finally into the doffer d-always in an extended condition.
The fleece formed on the doffer may be removed in the ordinary manner by means
of the doffing-comb k and be transinitted in any usual manner to the succeeding
machine for further treatment. The angle
(Figs. 2, 3, and 4) which the
brushes B make with a radial plane of the cylinder is determined according to the
nature of the fibrous material to be treated. It may be positive (Fig. 2), or be
а

page_text: equal to nothing (Fig. 3), or be even negative (Fig. 4) in the case of material
that is delicate and easily adheres to the brushes.
Figs. 2, 3, and 4, also show an arrangement of attaching the brushes B. They
are inserted in slots which extend completely across the cylinder and are guided by
rods e against which the inclined brushes B are pressed by centrifugal force, whilst
a projection on the brush stock, which engages in a corresponding groove in the
bar e, prevents the brush from flying out. The brushes may be prevented by
catches from moving laterally during the working of the engine.
Although I have described my invention in its application to an engine for
carding wool it will of course be understood that it is equally applicable to engines
for carding other fibrous materials.
Improvements in Carding-engines.
I, GOTTFRIED MEYER, of Soleure, Switzerland, Engineer, do hereby declare
the nature of this invention and in what manner the same is to be per-
formed to be particularly described and ascertained in and by the following
statement:-
Carding engines as hitherto constructed are open to objection because the quickly
rotating main-cylinder in delivering the fibrous material, crowds it upon the
slowly rotating workers in such a manner as to form knots and to injure, and even
to break the material under treatment.
The object of this invention is to obviate this drawback and this is accomplished
by treating the fibrous material in such a manner as to retain it in an extended
state from the time that it is delivered by the main-cylinder to the first worker
until it reaches the doffer.
Referring to the illustrative drawings filed with my Provisional Specification,
Fig. 1 shows a diagrammatic longitudinal section of an engine for carding wool
constructed according to my invention; and
Figs. 2, 3, and 4 are detail-views to which reference will hereinafter be made.
The general arrangement of the engine is of an ordinary description with the
exception that the clearers a, a, a³, etc. are arranged before instead of behind the
workers, 1, 3, etc. and that the fancy-roller is omitted. The principal improve-
ment however in this carding-engine consists in the fact that the main-cylinder T
is not clothed with cards but is furnished with brushes B which extend the whole
width of the cylinder and are arranged so that the distance between any two
consecutive brushes is greater than the length of the longest fibres of the material
to be treated. Immediately behind each of the brushes B, and likewise extending
across the whole width of the main-cylinder, a slot o is provided in the said
cylinder, and through the slots air in the main-cylinder T is caused to issue at a
slight pressure. In order to produce the pressure, both of the end-walls W of the
main-cylinder T may be provided with openings and, be constructed with obliquely
arranged vanes so as to act as fans, or both of the said end-walls may be placed in
connection with a source of compressed air.
The fibrous material is fed along in the usual manner by means of the slat
conveyor t, the feed roller v and the first drum c. Since the distances apart of the
several brushes are greater than the greatest length of the fibrous material
the latter becomes divided by the brushes into separate successive laps or tufts.

page_text: Now as the ratio between the peripheral velocities of the main drum T and of the
1st drum is made at least as great as the ratio of the distances apart of the
several brushes to their width, the result is that the brushes seize the fibrous.
material tuft by tuft at the forward end of the latter, whilst the free end of the
tuft is caused, under the action of the current of air issuing through the slot o
behind the said brush B, in conjunction with the centrifugal force of the tuft, to
extend outward from the periphery of the cylinder and tend towards a radial
position so that it will strike into the card-clothing of the first worker b' be held
thereby, and removed from the forwardly travelling brush B in an extended state..
The tuft of wool on being removed from the worker by the clearer a' is again
seized at the front end by one of the brushes B of the quickly rotating main
cylinder T and struck in succession into the remaining workers 62, 63, 6*, etc. and
finally into the doffer d-always in an extended condition. The fleece formed on
the doffer may be removed in the ordinary manner by means of the doffing-comb k
and be transmitted in any usual or suitable manner to the succeeding machine for
further treatment. The angle a (Figs. 2, 3, and 4) which each brush B makes
with a radial plane of the cylinder is determined according to the nature of the
fibrous material to be treated. It may be positive (Fig. 2), or be equal to nothing.
(Fig. 3), or be even negative (Fig. 4) in the case of material that is delicate and
easily adheres to the brushes.
•
Figs. 2, 3, and 4 also show an arrangement for attaching the brushes B. They
are inserted in slots which extend completely across the cylinder and are guided by
rods or bars e against which the inclined brushes B are pressed by centrifugal force,
whilst projections on the brush-stocks, which engage in corresponding grooves in
the rods or bars e, prevent the brushes from flying out. The brushes may be
prevented by catches from moving laterally during the working of the engine.
Although I have described my invention in its application to an engine for
carding wool it will of course be understood that it is equally applicable to engines.
for carding other fibrous materials.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed I declare that what
I claim is
1. A carding-engine the main-cylinder of which is provided around its periphery
with a series of brushes arranged parallel to the axis of the cylinder, instead of
with the usual card-clothing, substantially as herein described for the purpose
set forth.
2. A carding-engine of the kind specified in the preceding claim, in which the
brushes are located in slots which extend across the main-cylinder, into which the
said brushes are adapted to be inserted from the side, and in which they are
arranged to be held by projections on the brush-stocks that engage in grooves
in rods or bars against which the brushes are adapted to bear, substantially as.
described.
DL: L
100-
For the Applicant,
W. LLOYD WISE,
46, Lincoln's Inn Fields, London, W.C., Chartered Patent Agent..