Improvements in Self-feeders for Carding Engines.
Year: 1893

page_text: COMPLETE SPECIFICATION.
Improvements in Self-feeders for Carding Engines.
I, OSWALD LIEBSCHER, of Machine Works, Gera, Furstenthum, Reuss, in the
German Empire, Machine-maker, 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 improvements in self-feeders for carding engines, that is
to say, to machines in which the wool or similar fibres are fed automatically.
In the drawing annexed-
Fig. 1 shows the arrangement which strips the wool or similar fibre off the
elevator cloth, and Fig. 2 the arrangement for the further transport of the fibres
to the carding engines.
In Fig. 1, c is the feed box from which the elevator cloth a lifts the fibres to
the top.
The fibres are stripped from this cloth a by means of a comb d and delivered
into scales b. These scales, after receiving a certain weight of fibres, delivers the
same onto the travelling table a¹.
The comb d has imparted a peculiar motion which ensures the stripping of the
fibres from the elevator cloth a and the throwing off of the same into the scales.
For this purpose the comb d is caused to describe the curve f, as shown in the
drawing by arrows, which represents an oblong figure and has an acute curve at
the bottom, which produces a quick movement of the comb d and assisted by the
centrifugal force renders the throwing off of the fibres stripped from the elevator
cloth certain. Between the elevator a and the scales b, a guide g is arranged,
which prevents an undue throwing off of the fibres.
The described motion of the comb d is effected by the following device :-
The comb d is fixed to the eccentric strap h, actuated by the eccentric k fixed
on the shaft. The eccentric strap has a rod m on which is arranged to slide the
collar p.
The latter is jointed to the lever o which is arranged to oscillate on the
bolt w.
By means of a set screw the collar p can be fixed into different positions
on the rod m. Rotary motion is transmitted to the shaft i by means of straps.
As will be seen from the drawings, the comb d describes the curve f on the
shaft being rotated.
On the other side of the elevator cloth a a similar device is employed which
serves to throw into the feed box c the fibres which project.
Fig. 1. represents the fibres as falling from the scales onto the travelling table a'
where they are pressed down by the gripper levelled, divided and delivered to the
carding engine in the well known manner.
Fig. 2 shows an improvement of the device last mentioned, to prevent the
gripper from entering and bringing the fibres, which are in a thick layer on
the travelling table a' in disorder particularly when the fibres are very long which
causes the feeding of the fibres to become irregular.
The said improved device consists of a presser plate c' arranged opposite the
grippers which press down the fibres as soon as they fall onto the travelling
table a', so that the grippers cannot bring the fibres into disorder. The presser
plate c' is fixed onto the shaft having a lever d' connected to the lever f¹ by means
of the rod g. To the lever f' is also fixed an oval chain wheel m' actuated by
means of the driving chain h. Owing to the eccentric arrangement of the chain
wheel in the presser plate c¹ falls quickly but rises slowly. The advantage of
quickly lowering the presser plate c¹ is to ensure a reliable pressing down of the
fibres without displacing the same, which is also assisted by lowering the presser

page_text: plate c¹ in the direction in which the travelling table a' moves, i.e. from the right
to the left.
In order to retain the chain constantly in gear with the eccentric chain
wheel m', a tension pulley o' is provided.
Having now particularly described and ascertained the nature of this invention
nd in what manner the same is to be performed, I declare that what I claim, is.
1st. In self feeders for carding engines, the employment of an oscillating plate c¹
which quickly depresses the fibres which have fallen onto the travelling table a' so
as to prevent the gripper & from disturbing the same, substantially as set forth
and with reference to Fig. 2.
2nd. In self-feeders for carding engines, the employment of an oscillating plate c¹
which quickly depresses the fibres which have fallen onto the travelling table a' so
so to prevent the gripper from disturbing the same, the plate c' being actuated
by means of a driving chain in gear with an eccentric chain wheel m¹ for the
purpose of slowly raising and quickly lowering the presser plate c', substantially as
set forth and with reference to Fig. 2.
3rd. In self feeders for carding engines, the employment of a plate c oscillated
downwards in the direction of the transport of the fibres which quickly depresses
the fibres which have fallen onto the travelling table a' so as not to be disturbed
by the gripper b', the plate c¹ being actuated by means of a driving chain in gear
with an eccentric chain wheel m', for the purpose of effecting a slow lifting and a
quick lowering of the presser plate c¹, substantially as set forth and with reference
to Fig. 2.
4th. In self feeders for carding engines, the device for causing the comb d, which
serves to strip the fibres from the elevator cloth a, to describe a curve which at its
lower end form a point, to ensure a certain throwing off of the fibres, substantially
as set forth and with reference to Fig. 1.
5th. In self feeders for carding engines, the device for causing the comb d, which
serves to strip the fibres from the elevator cloth a, to describe a curve which at its
lower end forms a point, to ensure a certain throwing off of the fibres, the comb d
being actuated by means of an eccentric strap / connected to an oscillating lever o
and rendered adjustable towards the latter by the displacement, on the rod m, of
the eccentric strap h, of a joint collar connected to the end of the oscillating lever o
substantially as set forth and with reference to Fig. 1.
Dated this 1st day of July 1893.
F. BOSSHARDT & Co.,
4, Corporation Street, Manchester, Agents to Applicant.