IMPROVEMENTS IN FIBRE COMBING MACHINERY
Year: 1873

page_text: PROVISIONAL SPECIFICATION left by Matthew Mirfield and John
Scott at the Office of the Commissioners of Patents, with their.
Petition, on the 5th February 1873..
WC, MATTHEW MIRFIELD, of Montserrat Mills, Holme Lane, near
Bradford, in the County of York, Worsted Top Maker, and JOHN SCOTT,
of the same Place, Manager, do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN FIBRE COMBING MACHINERY," to be as
follows:-
This Invention relates to machinery for the purpose above recited of
the class comprising two combs or sets of teeth working in conjunction,
as for instance the "Noble's comb," and has for its object to secure the
more efficient action of the tuft detaching comb.
"
In the "Noble's comb" the fibre is fed in the form of a sliver or
slivers to the "large circle" and on arriving near to the little circle the
fibre is "thrown over or caused to project over or above the teeth of
the layer, and the smaller circles into which it is forced by the action or
pressure of a "dabbing brush," the continued rotation of the circles

page_text: causing a severance of the fibre, the little circle having detached a
portion or tuft of fibre from the main body or sliver, which tuft is drawn
off or therefrom by drawing off rollers, whilst the larger circle carries its
portion of the protruding fibre caused by the severance to another pair of
drawing off rollers which is in like manner drawn off between the teeth
of the larger circle, and so combed, and leaving the ends of the slivers
considerably thinner or reduced in bulk and quantity. It will be evident
that on the next "throw over" a portion of this reduced or thin end of
the slivers will be deposited on the little circle or tuft detaching comb,
whilst the portions of the slivers deposited on the larger circle will be
entiro and of non-reduced substance, and so the grip or hold of the tuft
detaching comb is the weaker of the two, consequently there will be less
fibre detached by the tuſt detaching comb than should be, and the object
of this Invention is to impart to the last mentioned comb better hold on
the fibre so as to increase the quantity detached at cach severance.
To remedy the defect and to increase the draft of the tuft detaching
comb we employ dabbing brushes, the bristles of such part of the said
brushes as act on the fibre over the tuft detaching comb are longer or
the ends thereof project further than those of the remaining portion of
the said brush, and which act on the fibre over the larger or sliver
holding comb (the head or stock of the brush being cranked or suitably
formed for that purpose), the longer bristles forcing or dabbing the fibro
more firmly into or between the teeth of the detaching comb, and so
increasing its hold thereon whereby a larger tuft is detached from tho
main body of the fibre. Or in lieu of the brush formed as described
separate brushes for the larger or fibro holding comb, and the tuft
detaching comb (and having separate mechanism for actuating the
same by any of the ordinary apparatus for such purpose) may be
employed, the bristles being longest on the brush working over and in
connection with the tuft detaching comb, so as to insure to such comb
increased detaching power.