Improvements in or relating to Stripping Apparatus for Carding Machines.
Year: 1890

page_text: Date of Application, 27th Dec., 1890
Complete Specification Left, 25th Sept., 1891-Accepted, 31st Oct., 1891
PROVISIONAL SPECIFICATION.
Improvements in or relating to Stripping Apparatus for Carding
Machines.
I, ARMAND LEJEUNE of Verviers in the Kingdom of Belgium, Manufacturer
do hereby declare the nature of this invention to be as follows:-
This invention consists of apparatus for stripping the lap or slivers in a carding
machine comprising:
1) A. circular stripper formed by a cylindrical roller having spiral toothed ribs
or blades cut out of, or secured to, its surface at short intervals, the points of the
teeth, having a peripheral speed equal to that of the doffer.
2) A fancy roller or brush arranged above the stripper so as to slightly touch
the said ribs or blades and constantly rub and clean the teeth thereof, so as to?
remove any filaments of carded material that may adhere to them, and
3) A small roller arranged upon the stripper at a certain distance from the
doffer and capable of removing from the blades or ribs of such stripper the lap, or
the bands or slivers of carded material to carry them further on to the cylinder on
which the lap is wound or to the rubbing aprons.
The points of the teeth of the stripper are set at a distance of preferably.
10 millimetres apart measuring from one blade or rib to the other so that as the
doffer turns in the opposite direction to the stripper with a peripheral speed equal.
to that of the tooth points, the length of the lap or slivers remaining free between.
the doffer, and stripper within the space between the two succeeding blades or ribs.
which are in contact with the doffer at the time may not exceed five millimetres.
Owing moreover to the helical shape of the blades or ribs, one of these remains at
all times in contact in one point with the doffer until the next rib is in its turn,
brought into contact therewith. Thus a continuous stripping or removal of the lap
(or in the case of slivers a continuous stripping) is ensured, if the stripper is
operated in conjunction with a doffer provided with collars. Where a collared
doffer is employed the stripping process is almost continuous; but it is completely
so where a solid doffer is used.
:
The fancy roller or brush rotating in the same direction as the doffer and in the
opposite direction to the stripper will then remove any filaments which may have
adhered to the teeth of the latter and which if left thercon would catch other
filaments thereby destroying the uniformity and resistance of the lap. This brush
also rapidly cleans or polishes the teeth of the stripper and thus renders them less
liable to retain any filaments of the material to be carded, so as to render the
carding more even and regular.
By imparting motion to this fancy roller by well known means its effect upon
the stripper or turning comb. may be increased so as to cause it to clean and polish
the toothed ribs on all their surfaces.
A roller turning in contact with the tooth ends conducts the lap from them and
carries it to the cylinder on which the lap is wound or to the rubbing aprons, if
such apparatus be applied to the continuous card.
Dated this 27th day of December 1890.
W. P. THOMPSON & BOULT,
Agents for the Applicant.

page_text: COMPLETES SPECIFICATION.
Improvements in or relating to Stripping Apparatus for Carding
.Machines.
I, ARMAND LEJEUNE of. Verviers, in.the.Kingdom of Belgium, Manufacturer,
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 consists of apparatus for stripping the lap or slivers in a carding
machine comprising;
1). A circular stripper formed by a cylindrical roller having spiral ribs or blades
with square or other teeth, cut out of or secured to its surface at short intervals,
the ends or points of the teeth having a peripheral speed equal to 'that of the
doffer; and the said ribs or bands being suitably toothed or notched in a lathe, the
intermediate spaces or notches extending if necessary the whole depth of the rib or
band.
2). A brush'arranged above the stripper so as to slightly touch the said ribs or
blades and constantly rub and clean the teeth thereof so'ns 'to remove any filaments
of carded material that may adhere to them, and
3). A small roller arranged upon the stripper at a certain distance, from 'the
doffer and capable of removing from the blades or ribs of such stripper the lap,.or
the bands or slivers of carded inaterial to carry them further on.
"In the accompanying drawings in which Figs. 1 and 2 show the improved
stripping device it will be seen that the points d'of the teeth of 'the stripper Dare
set at a distance of preferably 10 millimetres apart measuring" from.one blade or
rib to the other, so that as the doffer P turns in the opposite direction to the
stripper with a peripheral-speed equal to that of the tooth points the length of the
lap or slivers remaining free between the doffer and stripper within the space
between the two succeeding" blades or ribs which are in contact with 'the'doffer at:
the time cannot exceed '5 'millimetres. "Owing moreover to 'the helical 'shape of the
blades or ribs, "one of these remains always in contact at one point with the doffer
until the next rib is in its turn brought into contact therewith. "Thus 'a continuous.
stripping or removal of the "lap (or in the case of slivers a nearly continuous
stripping) is ensured; if the stripper is operated in conjunction with a doffer provided
with collars.
The brush V rotating in the same direction as the döffer P. and in the opposite
direction to the stripper D will then remove any 'filaments which may have adhered
to the teeth of the latter and which 'if left thereon would catch other 'filaments
thereby destroying the uniformity and resistance of the lap. "This brush also:
rapidly cleans or polishes the teeth of the stripper and thus renders them less liable
to retain any filaments of the material to be carded, so as to render'the carding
more even'and regular.
The roller C'turning in contact with the tooth ends' d takes off the lap'from them
and carries it to a roller or to rubbers if such apparatus" be applied to the
continuous card.
Having now particularly described and ascertained the nature off the said inven-
tion and in what manner the same is to be performed, I declare: that what I
claim is :-
A doffer stripping device or attachment applicable to carding machines and
consisting of the combination of a small circular brush with a stripping cylinder
provided with closely set spiral ribs or blades indented or notched in such a manner
that the ends of the teeth turn with the same peripheral speed as the external

page_text: surface of the doffer for the purpose of continuously stripping the latter of the
pile or bands it carries substantially as described and illustrated in the accompanying
drawings.
Dated this 25th day of September 1891.
W. P. THOMPSON & BOULT,
Agents for the Applicant.