IMPROVEMENTS IN MACHINERY FOR COMBING COTTON AND OTHER FIBRES
Year: 1877

page_text: LETTERS PATENT to George Freemantle, of Manchester, in the County of
Lancaster, Cotton Spinner, and John Dugdill, of Moston, in the same County,
Card Room Manager, for the Invention of "IMPROVEMENTS IN MACHINERY
FOR COMBING COTTON AND OTHER FIBRES."
Sealed the 7th August 1877, and dated the 21st February 1877.
PROVISIONAL SPECIFICATION left by the said George Freemantle and John
Dugdill at the Office of the Commissioners of Patents on the 21st February
1877.
GEORGE FREEMANTLE, of Manchester, in the County of Lancaster, Cotton
Spinner, and JOHN DUGDILL, of Moston, in the same County, Card Room Manager.
"IMPROVEMENTS IN MACHINERY FOR COMBING COTTON AND OTHER FIBRES."
In combing machines of the ordinary construction the short fibres are separated
from the long fibres by means of segmental combs fixed to a revolving cylinder, and
these combs are stripped by a revolving brush which delivers the short fibres on a
doffing roller.
Our Invention consists in imparting an end to-and-fro or traversing motion to the
revolving brush above referred to, whereby the combs are more effectually stripped
than heretofore, and the speed of the revolving brush can be lessened about one-half;
by this means the driving power is economised and the wear and tear of the
machine is reduced. This traversing motion of the brush enables us to use, if
necessary, combs of a finer gauge than heretofore.
The traversing motion is imparted to the brush by means of a disc with
elevations and depressions on its circumference fixed to the axle of the brush, and
this disc acts on bowls mounted on fixed studs or by any other equivalent means.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said George Freemantle and John Dugdill in the Great Seal Patent Office
on the 20th August 1877.
GEORGE FREEMANTLE, of Manchester, in the County of Lancaster, Cotton
Spinner, and JOHN DUGDILL, of Moston, in the same County, Card Room Manager.
IMPROVEMENTS IN MACHINERY FOR COMBING COTTON AND OTHER FIBRES."
"

page_text: In combing machines of the ordinary construction the short fibres are separated
from the long fibres by means of segmental combs fixed to a revolving cylinder, and
these combs are stripped by a revolving brush which delivers the short fibres on a
doffing roller.
Our Invention consists in imparting an end to-and-fro or traversing motion to
the revolving brush above referred to, whereby the combs are more effectually
stripped than heretofore, and the speed of the revolving brush can be lessened about
one-half, while the stripping effect is improved.
And in order that our Invention may be fully understood and readily carried
into operation, we will proceed to describe the accompanying Sheet of Drawings, in
which Fig. 1 is a transverse section, and Fig. 2, an elevation of part of an ordinary
cotton combing machine to which our improvements are applied.
a is the cylinder comb; b, the brush; c, the doffer; and d, the doffing comb, all
of which are made as usual. The end to-and-fro motion is imparted to the revolving
brush by means of the disc 6', see Fig. 2, which is fixed on the axle of the brush,
and this disc is set diagonally on its axle, or is provided with elevations and
depressions on its edges, the disc enters between the two antifriction bowls e, e,
which are mounted on studs fixed in the bracket f which is attached to or cast
upon any convenient part of the framing of the machine. As the brush revolves in
its bearings, as usual, it is evident that an end to-and-fro motion is imparted to it
in addition to the revolving motion; the amount of the end to-and-fro motion
depending upon the angle of the disc b¹ or the height of the elevations upon it.
By thus imparting an end to-aud-fro motion to the brush the number of its.
revolutions may be considerably reduced, thereby economising the driving power
and diminishing the wear and tear of the parts. This traversing motion of the
brush enables us to use, if necessary, combs of a finer gauge than heretofore, it
imparts a smooth polish to the comb cylinder, and effectually removes the fly or
loose fibres from the combs.
Having thus stated the nature of our Invention and described a convenient mode
of carrying the same into operation, we wish it to be understood that we do not
intend to limit ourselves to the details given, as the same may be varied, according
to the peculiar construction of the combing machine to which our improvements
are applied, and we claim, imparting an end to-and-fro motion to the revolving.
brushes of combing machines for the purposes described.
In witness whereof, we, the said George Freemantle and John Dugdill, have
hereunto set our hands and scals, this Tenth day of August, One thousand
eight hundred and seventy-seven.
GEORGE FREEMANTLE. (L.S.)
JOHN DUGDILL.
(L.S.)