Improvements relating to Carding Engines.
Year: 1898

page_text: Improvements relating to Carding Engines.
I, CARL OSWALD LIEBSCHER, of Gera, in the Principality of Reuss, German
Empire, Manufacturer, do hereby declare the nature of this invention to be as
follows:-
The present invention relates to an improvement in devices for removing the
fleece in cards. The machines used up to now for the treatment of fibres only
have been provided with one doffing mechanism by means of which the fibres
naturally only could be removed in one direction to the next card. If another
material had to be taken in hand, a new machine was needed provided with a
special doffing device.
This was a great inconvenience, more especially when the fibres had to be
superposed in sheets of different directions. Thereby a good mixture and
uniformity of the craps or fleece was attained, so that also material of inferior
quality could be treated. To superpose the fibres in such a way, two machines
of the present type were necessary and the chief feature of the present application
is to prevent these inconveniences.
The fibres combed from the doffer can be superposed or removed in different
directions owing to the exchangeability of the doffing- or removing devices.
In order to make my invention more clear I refer to the accompanying draw-
ings in which six different manners of removing the fleece are represented.
Figures 1, 2, 3, 4, 5 & 6 are elevation views of the dotting-device showing the
fleece removed in different directions.
Figures 1, 2, 3, 4, 5 and 6 are plan views of the fleece silvers superposed
by the devices represented in the respective Figures 1, 2, 3, 4, 5 & 6.
In all the six different manners represented in the drawing the fleece is removed
in different fibre-directions.
For the sake of clearness only a double partition of the fleece is represented in
the drawing; I evidently can increase the partition into more slivers whereby a
greater number of combinations in the sheets can be obtained. As will be seen
from Figure 1 the two fleece-slivers FF1 are removed uniformly, so that their
longitudinal direction corresponds to the direction of motion of the feeding-table.
Herefor a suitable device in proximity of the card is provided upon which is
fixed a plate P having an inclined slot. By means of this slot the removed
fleece is taken and superposed to form several sheets whereby its thickness
increases. It is then placed through this inclined slot upon the feeding table.
To obtain a greater uniformity, rollers Ware fixed across this table. The same
will be effected with the band F' combed from the right side of the doffing
cylinder P. In this way both slivers are superposed to a thicker sheet B as will
be seen from Fig. 1. In this figure a little alteration is shown so far as instead
of the slotted plate P' an inclined pair of rollers W2 is used for the same purpose.
In the form of execution, shown in Figure 2, the doffing device as mentioned
hereinbefore, viz. the slotted plates P¹ or the inclined rollers W², are replaced
D

page_text: by other devices by means of which the fibres can be removed in several directions.
This purpose is attained by means of a pair of rollers W2 fixed parallel to the
card. These rollers embrace the fleece-slivers and remove them vertically down-
wards. The pieces hanging down are cut by a blade M in a length corresponding
to the breadth of the feeding fleece and placed upon the feeding table.
In this manner the feeding fleece is covered with pieces of crape or fleece, the
length of which corresponds to the breadth of the blade (Figure 2). This device
is not a new one and no special explanation is needed. It is evident that the
before mentioned blade M must be of convenient form not to stop, when being
withdrawn, the hanging fleece.
The form of execution shown in Figure 3 is such that the fibre-direction of
both fleece-slivers removed from the doffer is diagonal when on the feeding-
table; they are removed, as shown in Figure 2, by the beforementioned
rollers W which however in this case are turned in a certain angle. Owing to
this angle the fleece runs down diagonally and is by means of the blade M placed
diagonally upon the feeding-table T. As the two rollers are turned in different
directions, the fibre-direction of the fleece stripes placed upon the feeding-table
will be a different one, as will be seen from Figure 3.
A combination of the removing devices represented in Figures 1 & 2 is attained
by the form of execution shown in Figure 4. The fleece-stripe F combed from
the left side of the doffer is put transversely upon the feeding table by means of
a roller pair W2 and the blade M, while the stripe F through the inclined slot
is turned and placed upon the feeding-table in longitudinal direction. Thereby
two superposed fleece-sheets are formed, the fibre directions of which being
rectangular, the direction of the upper sheet being parallel and the direction of
the under sheet being transversely to the feeding-table. By a simple exchange
of the roller pair with the blade it evidently can be managed, to get the upper
sheet placed transversely and the under sheet longitudinally.
In Figure 5 a combination of diagonal and transverse removal is shown. On
the left side of the doffer an inclined roller pair is fixed similar to the one shown
in Figure 3, so that the fleece stripe F hangs down inclined and is placed
diagonally upon the feeding-table. The right fleece-sliver F1 hangs down
vertically and is placed transversely upon the feeding-table.
Lastly in Figure 6 the fleece-sliver of the left side F is placed longitudinally
while the band coming from the right side is cut diagonally and placed on the
top of it.
In giving other directions to the roller pairs W2 other eventually needed
directions of the fibres can be easily obtained. It is to be noted that in all cases
where the roller pair W or the slotted plate P¹ is used for the removal of the
fleece with the fibres in a longitudinal direction, the blade M must be out of
action. As before mentioned the sliver combed from the doffing cylinder can be
separated into several partitions which by a corresponding number of doffing
devices can be superposed in the most various directions so that the number of the
possible combinations can be increased enormously.
No special weight is laid upon the different doffing- or removing-devices, as
specially the arrangement of the different removing devices which can be
exchanged between themselves, form the subject matter of the present application.
Dated this 16th day of December 1898.
JENSEN & SON,
77, Chancery Lane, London, W.C.,
Patent Agents.

page_text: I, CARL OSWALD LIEBSCHER, of Gera, in the Principality of Reuss, German
Empire, Manufacturer, 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 an improvement in devices for removing the
fleece in cards. The machines used up to now for the treatment of fibres have
only been provided with one doffing mechanism by means of which the fibres
naturally could only be removed in one direction to the next card. If another
material had to be taken in hand, a new machine was needed provided with a
special doffing device.
This was a great inconvenience, more especially when the slivers had to be
superposed in sheets with the fibres in different directions, whereby a good
mixture and uniformity of the crape or fleece was obtained, so that also material
of inferior quality could be treated. To superpose the fibres in such a way, two
machines of the present type were necessary and the chief feature of the present:
application is to avoid these inconveniences.
The fibres combed from the doffer can be superposed or removed in different
directions owing to the interchangeability of the doffing- or removing devices.
In order to make my invention more clear, I refer to the drawings filed with
the Provisional Specification, in which six different manners of removing the fleece
are represented.
Figures 1, 2, 3, 4, 5 & 6 are elevation views of the doffing-device showing the
flecce removed in different directions.
Figures 1, 2, 3, 4, 5 and 6" are plan views of the fleece slivers superposed
by the devices represented in the respective Figures 1, 2, 3, 4, 5 & 6.
In all the six different manners represented in the drawing the fleece is removed
in different fibre-directions.
For the sake of clearness the fleece is shown as removed from the doffers in
only two longitudinal portions. I evidently can divide the fleece from the doffer
into more than two longitudinal portions whereby a greater number of combina-
tions in the sheets can be obtained. As will be seen from Figure 1, the two
fleece slivers FF are removed uniformly, so that their longitudinal direction
corresponds to the direction of motion of the delivery table. Suitable supports
in proximity of the card are provided upon which are fixed plates P¹ having each
an inclined slot. Through these slots the fleeces are taken and superposed to
form sheets of increased thickness. They are passed through these inclined
slots on to the delivery table. To obtain a greater uniformity rollers Ware
fixed across this table. In this way the slivers are superposed to form a thicker
sheet B as will be seen from Figure 1". In this figure a little alteration is shown
so far as instead of the slotted plate P¹ an inclined pair of rollers W2 is used
for the same purpose.
In the form of execution, shown in Figure 2, the doffing device as mentioned
herein before, viz. the slotted plates P or the inclined rollers W, are replaced
by other devices by means of which the fibres can be removed in different
directions. This purpose is attained by means of two pairs of rollers We fixed
parallel to the card. These rollers embrace the fleece-slivers and remove them
vertically downwards. The pieces hanging down are cut by a blade into
lengths corresponding to the breadth of the delivered fleece and placed upon the
delivery table,

page_text: In this manner the delivery apron is covered with pieces of crape or fleece, the
length of which corresponds to the breadth of the blade (Figure 2). This device
is not a new one and no special explanation is needed. It is evident that the
before mentioned blade M must be of convenient form not to stop, when being
withdrawn the hanging fleece.
The form of execution shown in Figure 3 is such that the fibre-directions of
both fleece-slivers removed from the doffer cross one another when on the delivery
table; they are removed, as shown in Figure 2, by the before mentioned
rollers W2 which however in this case are arranged at a certain angle with the
horizontal. Owing to this angle the fleece runs down diagonally and is by means
of the blade M placed diagonally upon the delivery table T. As the two sets of
rollers are arranged at an angle on the same side of the horizontal line the fibre-
direction of the fleece strips when placed upon the delivery table will cross, as
will be seen from Figure 3".
A combination of the removing devices represented in Figures 1 & 2 is attained
by the form of execution shown in Figure 4. The fleece-strip F combed from
the left side of the doffer is placed transversely upon the delivery table by means
of a roller pair W2 and the blade M, while the strip F is passed through the
inclined slot and placed upon the delivery table in longitudinal direction.
Thereby two superposed fleece-sheets are formed, the fibre directions of which are
at right angles, the direction of the upper sheet being parallel and the direction
of the under sheet being at right angles to the delivery table. By a simple
exchange of the roller-pair W2 with the inclined slot P, it evidently can be
arranged, to place the upper sheet transversely and the under sheet longitudinally.
In Figure 5 a combination of diagonal and transverse removal is shown. On the
left side of the doffer an inclined roller pair W³ is fixed similar to one of the
two pairs shown in Figure 3, so that the fleece strip F is placed diagonally upon
the delivery table. The right fleece-sliver F hangs down vertically and is placed
transversely upon the delivery table.
Lastly in Figure 6 the fleece-sliver of the left side F is placed longitudinally
while the sliver F, coming from the right side is cut at an angle and placed on
the top of the sliver F.
By giving other directions to the roller pairs W other combinations of
directions of the fibres can be easily obtained. It is to be noted that in all cases
where the roller pair W2 or the slotted plate P1 is used for the removal of the
fleece with the fibres in a longitudinal direction the blade M must be out of
action. As before mentioned the sliver combed from the doffing cylinder can be
separated longitudinally into several parts which, by a corresponding number of
devices such as those described and shown, can be superposed in the most various
directions so that the number of the possible combinations can be increased
enormously.
As can be seen from the drawing, the supports of the rollers are similar to
another throughout all figures and it will be clear to everybody skilled in the
art, that the straight roller W² of Figure 2 together with its standard can be
removed from its support on to the support of the inclined roller W of Figure 5,
so that it would take the place of said roller W2 of Figure 5. Hereby I attain
the possibility of interchanging the different rollers between themselves which is
important for placing the Heece-strips in different directions upon the delivery-
table.
No special weight is laid upon the different doffing or removing devices, as
specially the arrangement of the different removing devices which can be ex-
changed between themselves, form the subject matter of the present application.
Having now particularly described and ascertained the nature of my said in-
vention, and in what manner the same is to be performed, I declare that what I
claim is
An improved interchangeable fleece-removing device for cards, for separating

page_text: the fleece strips combed from the doffer and placing the same upon the delivery-
table in different directions, substantially as described.
Dated this 15th day of September 1800.
JENSEN & SON,/
77, Chancery Lane, London, W.C.,
Patent Agents.