IMPROVEMENTS IN CARDING ENGINES BY WHICH THE DOFFER IS DIVIDED INTO SPACES SUCH THAT THE SLIVERS ARE AT WILL MADE OF THE SAME WEIGHT, AND THEIR WIDTH ADJUSTED TO PRODUCE ROVINGS OR SLUBBINGS SUITABLE FOR SPINNING COTTON WASTE AND SIMILAR SUBSTANCES
Year: 1869

page_text: LETTERS PATENT to John Taylor, Carding Master, Crawshaw Booth,
Richard Ingham, James Ingham, and James Sharples, also of
Crawshaw Booth, in the County of Lancaster, Spinners and Manu-
facturers, for the Invention of "IMPROVEMENTS IN CARDING ENGINES
BY WHICH THE DOFFER IS DIVIDED INTO SPACES SUCH THAT THE SLIVERS ARE
AT WILL MADE OF THE SAME WEIGHT, AND THEIR WIDTH ADJUSTED TO
PRODUCE ROVINGS OR SLUBBINGS SUITABLE FOR SPINNING COTTON WASTE
AND SIMILAR SUBSTANCES."
Scaled the 20th August 1869, and dated the 24th June 1869.
COMPLETE SPECIFICATION filed by the said John Taylor, Richard
Ingham, James Ingham, and James Sharples at the Office of the
Commissioners of Patents, with their Petition and Declaration, on
the 24th June 1869, pursuant to the 9th Section of the Patent Law
Amendment Act, 1852.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, JOHN
TAYLOR, Carding Master, Crawshaw Booth, RICHARD INGHAM, JAMES
INGHAM, and JAMES SHARPLES, also of Crawshaw Booth, in the County
of Lancaster, Spinners and Manufacturers, send grecting.

page_text: WHEREAS we are in possession of an Invention for "IMPROVEMENTS
IN CARDING ENGINES BY WHICH THE DOFFER IS DIVIDED INTO SPACES SUCH THAT THE
SLIVERS ARE AT WILL MADE OF THE SAME WEIGHT, AND THEIR WIDTH ADJUSTED
TO PRODUCE ROVINGS OR SLUBBINGS SUITABLE FOR SPINNING COTTON WASTE AND
SIMILAR SUBSTANCES," and have petitioned Her Majesty to grant unto us,
our exccutors, administrators, and assigns, Her Royal Letters l'atent
for the same, and have made solemn Declaration that we are the true and
first Inventors thereof, and that the same is not in use by any other
person or persons to the best of our knowledge and belief.
NOW KNOW YE, that we, the said John Taylor, Richard Ingham,
James Ingham, and James Sharples, do hereby declare that the
following Complete Specification, under our hands and scals, fully
describes and ascertains the nature of the said Invention, and in
what manner the same is to be performed, in and by the following
statement:-
In the use of doffers not covered with filletting in the ordinary
manner, but which have fillet rings and spaces alternating for the
purpose of dividing the sliver into a number of small slivers, a
serious difficulty arises in practice. In the portions of the main
cylinder opposite to the spaces in the doffer material accumulates
unless a certain amount of a cross reciprocating motion be given
to these cylinders, which cross motion, although it have the effect
of clearing the main cylinder, fills the spaces between the rings in
the doffer or permits these spaces in the doffer to fill themselves with
waste or other material which is from time to time worked into the
passing slivers, and their weight is thereby seriously affected. By our
present improvements the clothing of the dofling cylinder is not spaced,
and consequently without oscillation the whole of the main cylinder is
cleared; but for the purpose of dividing the sliver and practically the
doffer into a number of spaces such that the resultant narrow slivers
will all be of the same weight, or be easily adjusted to be of the same
weight, we place a shaft underneath the doffer revolving with considerable
velocity, and place thercon at suitable distances apart a series of narrow
pulleys covered with filletting of the kind known and used for fancy
rollers. These pulleys covered with filletting form a series of dofling
rollers, which acting upon the doffer cut narrow spaces into the sliver,
throw the material so separated into a recess, and divide the sliver into a

page_text: number of small slivers. To adjust these rollers when fastened upon
the shaft by set screws it is only necessary to stop the machine and
readjust them to what is desired; but we prefer to cut ring grooves
into the bosses of the pulleys, and by a series of forks corresponding to
these grooves carried and set by screws passing through them we adjust
the cutters with the greatest possible accuracy whilst the machine
is at work. This adjusting is necessary if the work is to be done
accurately, as the weight of sliver is often altered in the process of
working.
And in order that our Invention may be more fully understood and
more readily carried into effect, we will now proceed to describe the same,
reference being had to the accompanying Drawing, in which the same
letters and numbers of reference indicate the same portions in all the
Figures in which they occur.
Figure 1 represents a side elevational section of our improvements;
Figure 2 represents a front view of the same;. Figure 3. represents.an end.
view of part of a roving or slubbing frame showing rollers placed so as
to help the material to come out of the cans.
In the accompanying Drawings a represents a portion of the main
cylinder; b, the doffing cylinder; c, the doffing, comb; and c', the shaft by
which it is actuated; d, the cutting roller shaft; and d', d, d',.the cutting
rollers. The sliver upon the doffing cylinder and in its progress to
the delivery rollers is shown divided into different sections or small
slivers e, e, e³, c'. These slivers e¹, e, e³, e, correspond to the
rollers d', d,, upon the cutting roller shaft d. The slivers are con-
tracted and kept separate by passing through the well known trumpet
mouths ffff". From these trumpet mouths the material is drawn
by the calender rollers g', 9, and drops into the cans h', h³, h³, h', the
depth of which affords a measure for the limit of length and weight to
carry which the small slivers may be reduced, that is to say, the sliver
must not be made so small and be reduced in tenacity so far as not to
be able to bear its own weight when suspended from the calender rollers
and reaching to the bottom of the can. If made in the proportions shown
in the Drawing this however will be found to furnish a very appropriate
length, and the length will furnish a very appropriate weight, being
neither so small that it may be injured nor too large to be passed freely
through the subsequent processes. In operation we place a strap 2 between

page_text: Should these
divided it is
the pulley on a stand in the framing, and the pulley & upon the end of the
cutting roller shaft d, thereby communicating very rapid motion to the
last-named shaft, the pulley p being the well-known pulley by which the
strap for the clearing rollers is directed. The motion of the shaft d
however may be derived from any rapidly moving shaft or pulley suitably
placed. As the doffer rotates and brings the material by which it is
covered into contact with the cutting rollers it is at once removed by
their action and thrown into the recess i, and as many spaces are formed
in the doffer and its sliver as there are cutters, whilst as many small
slivers c', e², e³, et, plus one are formed by its action, which small slivers
are carried forward in the ordinary manner through the trumpet mouths
above described by the calender rollers into the cans h.
small slivers not all bo of the same weight and if equally
certain they will not be so, and it is very desirable that they should
be so. Irregularity in this respect may be removed by stopping the
machine, and adjusting the cutting rollers d', d, d, by hand, but when
it is an object to keep the machinery as much as possible at work we
cut ring grooves in the bosses of the cutting rollers d',,, and adapt
the forks,,, to them, placing the bosses of these forks upon the
screws ',,, which being placed in bearings in the brackets a³, x², x³,
the rollers may be set whilst the machine is at work. We commu-
nicate motion to the calender rollers by the well-known means usually
employed for that purpose, there being nothing novel or special in that
part of our arrangements nor in tho cans in which the slivers are received.
We employ the rollers, ¹, placed between tho rollers and the cans at
the back of the roving or slubbing frame, so as to readjust the distance
from the rollers, s', to the bottom of the can to the strain the sliver

page_text: Secondly. The method and power of adjustment described and shown
whereby the small slivers hercin-before referred to may be brought to be
of the same weight at the will of the operative.
In witness whereof, we, the said John Taylor, Richard Ingham,
James Ingham, and James Sharples, have hercunto set our hands
and scals, this Nineteenth day of June, in the year of our Lord
One thousand eight hundred and sixty-nine.