IMPROVEMENTS IN CLEARING ROLLERS FOR CARDS USED IN THE PREPARATION OF COTTON
Year: 1873

page_text: LETTERS PATENT to John Imray, of No. 20, Southampton Buildings,
Chancery Lane, in the County of Middlesex, for the Invention of
"IMPROVEMENTS IN CLEARING ROLLERS FOR CARDS USED IN THE PREPARATION
OF COTTON.”—A communication from abroad by Josef Hämmerle, of
Dornbirn, Vorarlberg, Austria.
Sealed the 20th January 1874, and dated the 14th November 1873.
PROVISIONAL SPECIFICATION left by the said John Imray at the:
Office of the Commissioners of Patents, with his Petition, on the
14th November 1873.
I, JOHN IMRAY, of No. 20, Southampton Buildings, Chancery Lane,¨
in the County of Middlesex, do hereby declare the nature of the said In-
vention for " IMPROVEMENTS IN CLEARING ROLLERS FOR CARDS USED IN THE
PREPARATION OF COTTON," to be as follows:—
This Invention relates to rollers for clearing the surface of the cards
used in the preparation of cotton for manufacture, the object of the
improved rollers being to effect a more complete clearing of the carding
surface from the fibres adhering thereto with less wear or injury to the

page_text: cards. For this purpose there is mounted in bearings by the side of the
carding roller or cylinder a clearing roller having its axis parallel to
that of the carding roller. On the periphery of this clearing roller is
fixed a band of card wires extending over the whole length of the
roller, but occupying in breadth only a fraction, such as one-tenth or
.one-twelfth of its circumference. This clearing roller is made to revolve
so that its periphery moves at a considerably greater speed than that
of the carding roller in the same direction and in contact therewith,
and the flexure of the wires constituting the cards being in the case
of each of the rollers directed forwards the more rapid movement of 1
the clearing card has the effect of scraping off the adhering fibres
from the carding surface. A carding roller or cylinder cleared in this
manner is capable of producing a continuous sliver from fibre of very
inferior quality, and its cards require to be repaired or renewed much
less frequently than those of rollers which are cleared in the ordinary 1
manner.
It may be readily understood that other card surfaces besides those
SPECIFICATION in pursuance of the conditions of the Letters Patent a
filed by the said John Imray in the Great Seal Patent Office on the
23rd April 1874.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
IMRAY, of No. 20, Southampton Buildings, Chancery Lane, in the
County of Middlesex, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Fourteenth day of November, in the year
of our Lord One thousand eight hundred and seventy-three, in the thirty-
seventh year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said John Imray, Her special license that I, the 3
said John Imray, my executors, administrators, and assigns, or such
others as I, the said John Imray, my 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

page_text: of rollers may be cleared in a similar manner by passing over them a
clearing roller operating as above described.
DESCRIPTION OF THE DRAWINGS.
Fig. 1 shews a front view of the before-described improved clearing
roller; Fig. 2 shews a transverse section of the same; and Fig. 3 shews
the clearing roller applied to a carding cylinder.
On the periphery of the clearing roller A is fixed a band of card
wires B extending over the whole length of the roller, but occupying
in breadth only a fraction of its circumference. The clearing roller
being made to revolve in the direction of the arrow (Fig. 3) at a
considerably greater speed than the carding cylinder C, travelling in
the same direction, it effectually clears the fibres from the carding
cylinder, and the fibres taken off thereby are prevented by this im-
proved construction from wrapping round and thus choking and im- 1
pairing the action of the clearing roller, so that it does not require
to be removed in order to be cleaned oftener than once in every two or
three days.
Having thus described the nature of this Invention, and in what
manner the same is to be performed, as communicated to me by my a
foreign correspondent, I claim, the use for cards of the before-described
improved clearing roller having a single band of card wire occupying
in breadth only a fraction of the circumference of the roller.
In witness whereof, I, the said John Imray, have hereunto set my
hand and seal, this Twenty-third day of April, in the year of our
Lord One thousand eight hundred and seventy-four.