IMPROVEMENTS IN APPARATUS FOR CLEARING ROLLERS OF MACHINERY FOR PREPARING AND SPINNING COTTON
Year: 1871

page_text: LETTERS PATENT to William Knowles, of Bolton, in the County of
Lancaster, Cotton Spinner, and John Muir Hetherington, of
Manchester, in the said County, Machine Maker, for the Invention
of "IMPROVEMENTS IN APPARATUS FOR CLEARING ROLLERS OF MACHINERY FOR
PREPARING AND SPINNING COTTON."
Sealed the 24th October 1871, and dated the 28th April 1871.
PROVISIONAL SPECIFICATION left by the said William Knowles and
John Muir Hetherington at the Office of the Commissioners of
Patents, with their Petition, on the 28th April 1871.
We, WILLIAM KNOWLES, of Bolton, in the County of Lancaster,
Cotton Spinner, and JOHN MUIR HETHERINGTON, of Manchester, in
the said County, Machine Maker, do hereby declare the nature of the
said Invention for "IMPROVEMENTS IN APPARATUS FOR CLEARING ROLLERS OF
MACHINERY FOR PREPARING AND SPINNING COTTON," to be as follows:-
Our Invention consists in the use of apparatus whereby the surface
which clears the rollers of machinery for preparing and spinning cotton

page_text: is itself stripped by other apparatus upon which the material accumulates,
and from which it may be occasionally removed. To accomplish this
we propose to use a revolving brush which removes the material from
the rollers; and a comb, which by acting against the said brush, strips
the material therefrom. The brush and stripping comb may be of any
usual construction.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Knowles and John Muir Hetherington
in the Great Seal Patent Office on the 28th October 1871.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, WILLIAM
KNOWLES, of Bolton, in the County of Lancaster, Cotton Spinner, and
JOHN MUIR HETHERINGTON, of Manchester, in the said County, Machine
Maker, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-eighth-day-of-April, One
thousand eight hundred and seventy-one, and in the thirty-fourth year
of Her reign, did, for Herself, Her heirs and successors, give and grant
unto us, thc said William Knowles and John Muir Hetherington, Her
special license that we, the said William Knowles and John Muir
Hetherington, our executors, administrators, and assigns, or such others
as we, the said William Knowles and John Muir Hetherington, our
executors, administrators, 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 and lawfully might make, use, excrcise,
and vend, within the United Kingdom of Great Britain and Ireland, the
Channel Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN
APPARATUS FOR CLEARING ROLLERS OF MACHINERY FOR PREPARING AND SPINNING
COTTON," upon the condition, amongst others, that we, the said William
Knowles and John Muir Hetherington, by an instrument in writing
under our hands and seals (or under the hand and seal of one of us),
should particularly describe and ascertain the nature of the said In-
vention, 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.

page_text: NOW KNOW YE, that I, the said John Muir Hetherington, do hereby
declare the nature of our said Invention, and in what manner the same
is to be performed, to be particularly described and ascertained in and
by the following statement (and accompanying Drawing), that is to
say:
Our Invention consists in the use of apparatus whereby the surface
which immediately clears the rollers of machinery for preparing and
spinning cotton is itself stripped by other apparatus upon which the
waste material accumulates, and from which it may be occasionally
removed.
The accompanying Drawing represents in section that part of a
combing machine which carries the drawing rollers, such rollers being
represented at a, b; at c is a shaft driven from any convenient moving
part of the machine and carrying a worm d, which takes into a wheel e
upon an upright shaft f, and this at its upper end is provided with a
worm g in gear with a wheel h upon the axis of a circular brush i. The
axis of this brush is carried by slots formed in brackets, as at k, and its
periphery bears lightly against the two top rollers a. At is a bar
provided with axes which rest in slots formed in brackets, as at m, the
said bar being provided with a projecting comb n which extends slightly.
into the bristles of the brush i. Projecting from the bar is an arm o
carrying a set screw p which bears against a fixed part q, and by turning
the said screw inward or outward the comb n may be caused to extend
more or less into the bristles of the brush i, its own weight bearing it
downward. The shaft c being caused to revolve a slow rotatory motion
will be imparted to the brush i in the direction of the arrow by the gearing
d, e, g, h, and as it revolves against the comb n the material which has
been removed from the rollers a will be stripped and retained by the
said comb. When a certain quantity has accumulated thereon the bar /
may be turned in its bearings, so as to move the comb n upward, and the
material may then be removed therefrom by hand. We have above
spoken of the rollers a, a, as those of a combing machine, but our
Invention may be adapted in like manner to the rollers of a drawing
frame or other preparing or spinning machine in which it is desirable to
employ clearers..
.
Having thus described and ascertained the nature of our said Inven-

page_text: be understood that we claim as secured to us under the above in part
recited Letters Patent, the use of a comb or other stripping apparatus
to clearers of rollers of such machines as aforesaid.
In witness whereof, I, the said John Muir Hetherington, hath here-
unto set my hand and seal, this Twenty-seventh day of October,
in the year of our Lord One-thousand eight hundred and seventy-
one.
JOHN M. HETHERINGTON. (L.S.)