IMPROVEMENTS IN THE CONSTRUCTION OF Apparatus FOR CARDING COTTON WASTE.”
Year: 1875

page_text: LETTERS PATENT to Samuel Wild, of New Mills, in the County of
Derby, for the Invention of "IMPROVEMENTS IN THE CONSTRUCTION OF
Apparatus FOR CARDING COTTON WASTE.”
PROVISIONAL SPECIFICATION left by the said Samuel Wild at the
Office of the Commissioners of Patents, with his Petition, on the
6th December 1875.
I, SAMUEL WILD, of New Mills, in the County of Derby, do hereby
declare the nature of the said Invention for "IMPROVEMENTS IN THE CON-
STRUCTION OF APPARATUS FOR CARDING COTTON WASTE," to be as follows:-
This Invention relates to the construction of apparatus to be applied
to the doffing cylinders of cotton waste carding engines for dispensing
with the piecing apparatus, and delivering the product in a series of con-
tinuous slivers.
Hitherto the slivers have been doffed in a series of transverse strips or
rolls of the width of the doffing cylinder, and then pieced either by
hand or by a piecing apparatus.

page_text: I apply to the surface of the doffing cylinder, close beneath the
doffing comb, a series of fixed knives, which divide the sheet of sliver at
right angles to the axis of the doffer as it is doffed into a series of con-
tinuous strips of a width equal to the spaces between the knives; these
strips pass over inclined troughs or through grooves, which condense
them and reduce their width, and thence between two rubbers, which
are constantly reciprocating to and fro in reverse directions, and which
have the effect of further condensing the slivers, and rolling them into
a cylindrical form, whence they proceed, and are wound on to bobbins
ready to be taken to the slubbing or roving frame.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Samuel Wild in the Great Seal Patent Office on
the 3rd June 1876.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, SAMUEL
WILD, of New Mills, in the County of Derby, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Sixth day of December, in the year
of our Lord One thousand eight hundred and seventy-five, in the thirty-
ninth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Samuel Wild, Her special license,
that I, the said Samuel Wild, my executors, administrators, and
assigns, or such others as I, the said Samuel Wild, 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 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
THE CONSTRUCTION OF APPARATUS FOR CARDING COTTON WASTE," upon the con-
dition (amongst others) that I, the said Samuel Wild, 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.

page_text: NOW KNOW YE, that I, the said Samuel Wild, 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 and accompanying Drawings:-
This Invention relates to the construction of apparatus to be applied
to the doffing cylinders of cotton waste carding engines for dispensing
with the piecing apparatus, and delivering the product in a series of
continuous slivers.
Hitherto the slivers have been doffed in a series of transverse strips
or rolls of the width of the doffing cylinder, and then pieced either by
hand or by a piecing apparatus.
I apply to the surface of the doffing cylinder, close beneath the
doffing comb or between the main cylinder and the doffing cylinder, a
series of fixed knives, which divide the sheet of sliver at right angles to
the axis of the doffer into a series of continuous strips of a width equal
to the spaces between the knives; these strips pass over inclined troughs,
or through grooves which condense them and reduce their width, and
thence between two rubbers which are constantly reciprocating to and fro
in reverse directions, and which have the effect of further condensing the
slivers, and rolling them into a cylindrical form, whence they proceed,
and are wound on to bobbins ready to be taken to the slubbing or roving
frame, or to the mule or twiner direct.
Such being the nature and object of my said Invention, I will now
proceed to describe in detail the manner in which the same is to be or
may be performed or carried into practical effect; and in order that
the same may be clearly understood I have hereunto annexed a Sheet
of Drawings illustrative thereof, and have marked the same with figures
and letters of reference corresponding with those in the following
explanation thereof.
The annexed Drawing illustrates the application of my Invention to
a carding engine, the fixed knives being in this instance shown as applied
to the surface of the doffing cylinder immediately below its point of
contact with the main cylinder; but in some cases (as above mentioned)
I apply the said knives to the surface of the doffing cylinder close
beneath the doffing comb.
Fig. 1 is a longitudinal section; Fig. 2 is a face view; and Fig. 3, a
transverse section (taken between the main cylinder and the doffing

page_text: cylinder) of so much of a carding engine as is necessary to illustrate my
Invention.
a, a, shows part of the framing of the carding engine; 6, 6, the main
carding cylinder, and c, c, the doffing cylinder; d, d, is the doffing
comb; e, e, is a series of fixed knives placed in contact (or nearly so)
with the surface of the doffing cylinder, and at right angles to the axis
thereof. These knives e, e, divide the sheet of sliver delivered on to the
doffing cylinder c, c, into a series of continuous strips of a width equal
to the spaces between the knives, and the doffing comb d, d, of course
removes them from the cylinder in the form of longitudinal and con-
tinuous strips. These strips of sliver then pass down the inclined
board ff, between the two condensing rollers g, g, (which may be plain
or grooved circumferentially, and thence along the troughs or grooves
h, h, to the rubbers i, i. These rubbers are similar to those ordinarily
employed in combination with the "tipplers" for rubbing or piecing.
the transverse strips or rolls in the manner hitherto practised. The
continuous slivers, after having been condensed by the rubbers, are
then wound on to bobbins k, k, by means of the revolving surface
drums 1, 1.
Having now described the nature and object of my said Invention,
together with the manner in which the same is to be or may be per-
formed or carried into practical effect, I wish it to be understood that I
claim as my Invention, the application to carding engines for carding
cotton waste of a series of fixed knives placed in contact with the surface
of the doffing cylinder (or nearly so) for the purpose of dividing the
sliver into a series of longitudinal and continuous strips, whether the
said knives are applied to the doffing cylinder at or below its point of
contact with the main carding cylinder or close beneath the doffing
comb, or at any other part of its circumference.
In witness whereof, I, the said Samuel Wild, have hereunto set
my hand and seal, this First day of June, in the year of our
Lord One thousand eight hundred and seventy-six.