A NEW OR IMPROVED APPARATUS FOR DIVIDING THE FLEECE ON THE DOFFING ROLLERS OF CARDING ENGINES
Year: 1878

page_text: LETTERS PATENT to Theodore Kaltenbach and John Hubert Schmitz, both of
No. 19, New Broad Street, in the City of London, Merchants, for the
Invention of "A NEW OR IMPROVED APPARATUS FOR DIVIDING THE FLEECE
ON THE DOFFING ROLLERS OF CARDING ENGINES." A communication from
abroad by Theodore von Negri, of Aix-la-Chapelle, in the Kingdom of Prussia,
and Empire of Germany.
Sealed the 13th December 1878, and dated the 4th July 1878.
PROVISIONAL SPECIFICATION left by the said Theodore Kaltenbach and
John Hubert Schnitz at the Office of the Commissioners of Patents on the
4th July 1878.
THEODORE KALTENBACH and JOHN HUBERT SCHMITZ, both of No. 19, New
Broad Street, in the City of London, Merchants. "A NEW OR IMPROVED APPA-
RATUS FOR DIVIDING THE FLEECE ON THE Doffing ROLLERS OF CARDING ENGINES."
[A communication from abroad by Theodore von Negri, of Aix-la-Chapello, in the
Kingdom of Prussia, and Empire of Germany.]
The apparatuses heretofore in use for dividing the fleece on the carding machine
have various defects, some of which are the following:-The division of the fleece
is not exact, the textile fibre is torn, the fleece becomes too tightly pressed into
the cards, nothing but perfectly clean wool can be used, the apparatuses are com-
plicated, and are difficult to maintain in good working order, and the machinery is
costly. The object of the present Invention is to obviate the above-named defects.
The improvement consists in employing in connection with the doffer a number
of thin steel plates arranged at regular intervals apart; they are so shaped and
fixed that their edges touch the fleece on the doffer at the point only where the
flecce is taken off therefrom by the lower doffing knife. The lower doffing knife is
divided and works between the steel plates, so as to comb off those portions of the
Drinn C77

page_text: fleece which occur between the steel plates, leaving behind those portions which
are held firmly on to the doffer by the edges of the said steel plates, which portions
are afterwards taken off by the upper doffing knife.
The steel plates are fixed at top and bottom to two rods, and are kept at equal
distances apart by distance washers or blocks, and are strained tightly by means of
stretching screws applied to the aforesaid rods, the whole apparatus being adjust-
able in position by means of set screws or other suitable means.
The working parts of the steel plates after being fixed between the rods should
be ground smooth by means of an emery glazer before being applied to the carding
engine.
The apparatus can be adapted between the frames of any carding engine.
As the fleece is only touched by the outer edges of the steel plates it follows that
the long fibres are not torn, and the fibres are divided equally.
The apparatus is very simple, casy to work, may be used for any kind of wool,
and its cost is trifling.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Theodore Kaltenbach and John Hubert Schmitz in the Great Seal
Patent Office on the 4th January 1879.
THEODORE KALTENBACH and JOHN HUBERT SCHMITZ, both of 19, New Broad
Street, in the City of London, Merchants. "A NEW OR IMPROVED APPARATUS
FOR DIVIDING THE FLEECE ON THE DOFFING ROLLERS OF CARDING ENGINES."
The apparatuses heretofore in use for dividing the fleece on the carding machine
have various defects, some of which are the following:-The division of the fleeco
is not exact, the textile.fibre is torn, the fleece becomes too tightly pressed into
the cards, nothing but perfectly clean wool can be used, the apparatuses are com-
plicated, and are difficult to maintain in good working order, and the machinery is
costly. The object of the present Invention is to obviate the above-named defects.
In the Drawing Figure 1 represents a longitudinal section of so much of a
carding engine as is necessary to illustrate the Invention, and Figure 2 an end view
of same.
The improvement consists in employing in connection with the doffer, shewn by
the dotted lines D, a number of thin steel plates A, A, arranged at regular intervals
apart; they are so shaped and fixed that their edges touch the fleece on the
doffer D at the point only where the fleece is taken off therefrom by the lower
doffing knife E. The lower doffing knife E is divided, and works between the stuel
plates, so as to comb off those portions of the fleece which occur between the steel
plates A, A, leaving behind those portions which are held firmly on to the doffer
by the edges of the said steel plates, which portions are afterwards taken off by
the upper doffing knife F.
The steel plates A, A, are fixed at top and bottom to two rods a and a', and are
kept at equal distances apart by distance washers or blocks b, b, and are strained
tightly by means of stretching screws c, c, applied to the aforesaid rods, the whole
apparatus being adjustable in position by means of set screws c, d, or other suitable
means.
The working parts of the steel plates after being fixed between the rods should
be ground smooth by means of an emery glazer before being applied to the carding
engine.
The apparatus can be adapted between the frames of any carding engine.
As the fleece is only touched by the outer edges of the steel plates it follows that
the long fibres are not torn, and the fibres aro divided equally.
The apparatus is very simple, easy to work, may be used for any kind of wool,
and its cost is trifling.
Having now described the nature of the said Invention, and the manner in
which the same is to or may be carried into effect, we would have it understood
that what is claimed as the Invention to be secured by the herein-before in part
recited Letters Patent is, the employment in connection with the doffer of a
carding engine of a series of thin steel plates in combination with a divided dofling
knife working between the said steel plates, substantially as herein-before described,
and illustrated in the Drawing, and for the purpose set forth.
In witness whereof, we, the said Theodore Kaltenbach and John Hubert
Schmitz, have bereunto set our hands and seals, this Third day of January,
in the year of our Lord One thousand eight hundred and seventy-nine.