IMPROVE-> "MENTS IN MACHINERY FOR COMBING WOOL AND OTHER FIRRES
Year: 1867

page_text: LETTERS PATENT to George Edmund Donisthorpe, of Leeds, in the County
of York, Top- and Noil Manufacturer, for the Invention of "IMPROVE->
"MENTS IN MACHINERY FOR COMBING WOOL AND OTHER FIRRES"
Sealed the 5th November 1867, and dated the 8th May 1867.
PROVISIONAL SPECIFICATION left by the said George Edmund Donis-
thorpe at the Office of the Commissioners of Patents, with his Petition,
on the 8th May 1867.
I, GEORGE EDMUND DONISTHORPE, of Leeds, in the County of York, Top
and Noil Manufacturer, do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN MACHINERY FOR COMBING WOOL AND OTHER FIBRES," to be.
as follows:-
This Invention has for its object improvements in machinery for combing!
wool and other fibres, and the improvements relate, firstly, to the class of
combing machine known as Noble's or Donisthorpe's combing machines,
which are composed of one large circular travelling comb, and usually of two
smaller circular combs working therewith, the large comb having ranged around'
its exterior troughs or tubes carrying the slivers to be combed, and the smaller
combs being placed on the inner side of the larger comb. Heretofore in this
class, of combing machine the cleaned fringes of fibre which are left protruding
both from the large comb and from the smaller combs as they separate from'
one another have been drawn off by pairs of drawing rollers revolving at the
same surface speed, each slubbing has then been condensed by being passed

page_text: through a revolving bell-mouthed tube, and afterwards all the slubbings have
been combined with one another by being passed through another revolving
tube, and have been led away to be balled, or to a can or other receptacle.
According to my present Invention in-place-of-combining-the slubbings from
the small combs with the slubbings from the large comb-I lead-the-slubbings
from the large comb into one can or receptacle, whilst the slubbings from the
smaller combs are led into another receptacle, by which means I am enabled
to drive the drawing-off rollers working with the larger and smaller combs at
different speeds, in place of always being driven at the same surface speeds,
as heretofore necessary when all the slubbings were combined with one
another. In order to lead off and condense slubbings of fibre as they are
drawn-off-by-drawing-rollers. from endless travelling combs of combing
machines I pass the slubbing as it comes from the drawing-off rollers
through a pair of conducting or forcing rollers, which force the slubbing into
a fixed tube, the mouth or opening of which is formed, to fit against the cir-
cumference of both rollers where they meet together, and from this tube the
slubbing is led away to any desired point through a tapering conducting tube,
which is made to increase in diameter the further it recedes from the forcing
or conducting rollers before mentioned. If desired a condensing tube may be
placed at the back of the drawing-off rollers to condense the slubbing before
it is forced into the condensing tube above mentioned.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said George Edmund Donisthorpe in the Great Seal Patent
Office on the 8th November 1867.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, GEORGE 2
EDMUND DONISTHORPE, of Leeds, in the County of York, Top and Noil
Manufacturer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Eighth day of May, in the year of our Lord One
thousand eight hundred and sixty-seven, in the thirtieth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto me, the said
George Edmund Donisthorpe, Her special licence that I, the said George
Edmund Donisthorpe, my executors, administrators, and assigns, or "such
others as 1, the said George Edmund Donisthorpe, my executors, adminis-
trators, and assigns, should at any time agree with, and no others, from time
to time and at all times thereafter during the term therein expressed, should

page_text: and lawfully might make, use, exercise, and vend, within the United Kingdom
of Great Britain and Ireland, the Channel Islands, and Isle of Man, an
Invention for "IMPROVEMENTS IN MACHINERY FOR COMBING WOOL, AND OTHER
FIBRES," upon the condition (amongst others) that I, the said George Edmund
Donisthorpe, my executors or administrators, by an instrument in writing under
my, or their, or one of their hands and seals,, should particularly describe and
ascertain the nature of the said Invention, and in what manner the same was
to be performed, and cause the same to be filed in the Great Seal Patent
Office within six calendar months next and immediately after the date of the
said Letters Patent.
NOW KNOW YE, that I, the said George Edmund Donisthorpe, do hereby
declare the nature of the said Invention, and in what manner the same is
to be performed, to be particularly described and ascertained in and by the
following statement thereof, that is to say: -
This Invention has for its object improvements in machinery for combing.
wool and other fibres, and the improvements relate, firstly, to the class of
combing machine known as Noble's or Donisthorpe's combing machines, which:
are composed of one large circular travelling coinb, and usually of two smaller.
circular combs working therewith; the large comb having ranged around its
exterior troughs or tubes carrying the slivers to be combed, and 'the smaller.
combs being placed on the inner side of the larger comb. Heretofore in this
class of combing machine the cleaned fringes of fibre which are left protruding
both from the large comb and from the smaller combs as they separate from.
one anotlier have been drawn off by pairs of drawing rollers revolving at the
same surface speed, each slubbing has then been condensed by being passed
through a revolving bell-mouthed tube, and afterwards all the slubbings have
been combined with one another by being passed through another revolving
tube, and have been led away to be balled or to a can or other receptacle.
According to my present Invention in place of combining the slubbings
from the small combs with the slubbings from the large comb I lead the
slubbings from the large comb into one can or receptacle whilst the slubbings
from the smaller.combs are led to another receptacle, by which means I am
enabled to drive the drawing-off rollers working with the larger and smaller
combs at different speeds in place of always being driven at the same surface
speeds as beretofore necessary when all the slubbings were combined with one
another. In order to lead off and condense slubbings of fibre as they are drawn
off by drawing rollers from endless travelling combs of combing machines
pass the slubbing as it comes from the drawing-off rollers through a pair of;
conducting or forcing rollers which force the slubbing into a fixed tube, the
I

page_text: increase in diameter the further it recedes from the forcing or conducting
rollers before mentioned. If desired a condensing tube may be placed at the
back of the drawing-off rollers to condense the slubbing before it is forced into
the condensing tube above mentioned.
And in order that my Invention may be fully understood and readily
carried into effect, I will proceed to describe the Drawings hereunto
annexed.
DESCRIPTION OF THE DRAWINGS.
Figure 1 shows a diagram plan view of the arrangement hitherto employed
for transmitting motion to the several pairs of drawing-off rollers of the
combing machine known as Donisthorpe's combing machine:; 'in this Figure
a is the large circular comb, all around which the several slivers of fibre are
ranged; b, b, are the two smaller combs working therewith; it is unnecessary
to give here any general description of the working of combing machines of
this description, as their mode of working, is well known. The drawing-off
rollers which draw-off the cleaned fringe of fibre projecting.inwards from the
larger comb a are marked a', and the drawing-off rollers which draw off the
cleaned fringe of fibre from the smaller combs are marked 61; both these pairs
of drawing-off rollers receive motion from a pinión c fixed on the driving axis,
which passes down through the hollow axis of each smaller comb b; this
pinion, by an intermediate wheel & gives motion to a toothed wheel e on the
axis of one of the drawing-off rollers 6', and from this toothed wheel e motion
is also transmitted by two intermediate wheels f', f, to a toothed wheel f
which is fast on the axis of one of the drawing-off rollers a¹, and as the toothed
wheels e and f on the axes of the drawing-off rollers 6 and a¹ are of the same
diameter these pairs of drawing-off rollers will be driven at the same surface.
speed, and as before mentioned this was rendered necessary by reason of the
slubbings from both combs being combined with one another, and afterwards.
conducted to one can or receptacle; gare the drawing-off rollers for con-
ducting away the noil after it has been lifted up out of the teeth of tlie combs b..
The several intermediate wheels d and f, f; revolve on studs carried by the
lower horizontal plate of the framing of the machine.
At Figure 2 of the Drawings is shown a diagram plan view of a machine.
arranged according to my present Invention in such manner that the
slubbings from the larger comb' may be led into receptacles separate from the

page_text: receptacles which receive the slubbings from the smaller comb, thus allowing
of the pairs of drawing-off rollers a¹ and 6¹ being driven at different speeds;
to effect this the toothed wheels e and f on, the axes of the drawing-off rollers
a and b are of different diameters, the relative diameters of the wheels being
proportioned to the relative speeds at which it is desired to drive the pairs of
rollers, and in order that the relative speeds of the pairs of rollers may at any;
time be varied, the toothed wheels e and f on their axes are made moveable,
so that toothed wheels of any other required diameter may at any time be
substituted for thein, so varying the relative speeds of the pairs of rollers.;
The intermediate wheels f¹ and f which transmit motion from the wheel; e
to the wheel fare also changeable, so that wheels of any other diameter may
be substituted for either of them as required for transferring the motion from,
the wheel e to the wheel f. To facilitate the adjusting the gearing between
the rollers e and f the positions of the studs upon which the intermediate
wheels f¹ and f revolve are capable of adjustment, the studs being moveable
and capable of being fixed at any point along slots formed in the plate which
carries them.
In the Drawings the toothed wheels f on the axes of the rollers drawing
from the larger comb are of smaller. diameter than the toothed wheels on the
axes of the rollers drawing from the smaller combs, consequently the rollers
drawing off from the larger comb will revolve at a greater surface speed than
the rollers drawing from the smaller combs; as, however, the relative
diameters of the intermediate wheels can be varied the rollers drawing from-
the larger comb might if desired be made to revolve slower than the rollers
drawing from the small combs, and the relative surface speeds of the pairs of
drawing-off rollers may also thus be varied according to the nature of the fibre
to be combed and the class of work to be produced.
as
At Figure 2 of the Drawings is also shown my improved arrangement of
apparatus for leading-off and condensing the slubbings they are drawn off
from the endless travelling combs of combing machines. The apparatus is
composed of a pair of forcing rollers 9, g, between which the slubbings are
passed; the axes of these rollers are geared together by toothed wheels so
that both rollers revolve at the same surface speed, and as the slubbings are
drawn between them they force the slubbings into a tube h, which it is
preferred should be rectangular in section at its mouth or opening, as shown;
this mouth is formed to fit against the rollers g, as shown in the full size
sectional view of the tube and rollers shown at Figure 3; the form of the
short tube h is also shown in the back view of the rollers represented at
Figure 4. From this view it will be seen that the end of the tube which fits

page_text: against the rollers is rectangular in section, whilst its opposite end is circular
in section.
The tube h, as shown at Figure 3, rests on a transverse bar which connects
together the two side frames which carry the bearings of the forcing rollers g;
the tube is also fixed to these side frames by connecting pieces bolted to the
tube and to the side frames; the slubbings as they pass out from the tube h
are by preference received into a conducting tube of thin sheet metal, this
conducting tube being made of a taper form, and being led away to any point
desired; in place of this, however, the slubbings might if desired be received
into an open conducting trough as they pass away from the tube h.
In the arrangement shown at Figure 2, an apparatus such as is above
described-is-employed-for-conducting off the two-slubbings which are drawn
off the large comb into separate receptacles, whilst the slubbings drawn from
the two small combs are combined together by being passed through one such
apparatus, and are conducted into one can or receptacle; each slubbing from
the smaller combs might however, if desired, be conducted into a separate can
or receptacle.
In witness whereof, I, the said George Edmund Donisthorpe, have here-
unto set my hand and seal, this Sixth day of November, in the year of
our Lord One thousand eight hundred and sixty-seven.
G. E. DONISTHORPE. (L.S.)