IMPROVEMENTS IN THE MANUFACTURE OF CYLINDERS FOR CARDING COTTON AND OTHER FIBROUS SUBSTANCES
Year: 1852

page_text: Sealed the 30th March 1853, and dated the 1st October 1852..
PROVISIONAL SPECIFICATION left by the said Henry Bernoulli,
Barlow, at the Office of the Commissioners of Patents, with his
Petition, on the 1st October, 1852.
1, HENRY BERNOULLI BARLOW, do hereby declare the nature of the
said Invention for "IMPROVEMENTS IN THE MANUFACTURE OF CYLINDERS
FOR CARDING COTTON AND OTHER FIBROUS SUBSTANCES " to be as follows:-
In manufacturing cylinders for preparing cotton and other fibrous
substances according to the plan described in the Specification of
Letters Patent granted to Francis Alton Calvert on or about the 18th
January 1848, it is essential to turn a spiral groove into a metal
cylinder, and then to wind the toothed wire into the said groove, as
shewn in the sketch:

page_text: this process is expensive, and the object of the present Invention is to
make cylinders equally good, but at less cost than those above referred
to. In making toothed wire according to the present Invention it
will be necessary to take flat wire and pass it through a machine, which
first bends the flat wire into angle-shaped wire, and then punches teeth of
a suitable shape into one of the ribs of the angle iron. The toothed wire
is then ready for being wound spirally on to the cylinder to-be covered,
the surface of which is plane, -as-shewn in the sketch:
on referring to which it will be seen that the, distance between the
rows of teeth is governed by the breadth of the flat rib of the angle
iron; and when the cylinder to be covered is made of wood it will be
necessary to punch holes, at suitable distances apart in the flat rib of the
angle wire in order to drive little nails through the angle wire into the
wood. Another mode of manufacturing cylinders with the view of
avoiding the expence of turning grooves into the surface of a metal
roller for the insertion of the toothed wire is as follows:-A round
wire, and an ordinary flat toothed wire, made according to the Specifica-
tion of Letters Patent granted to Francis Alton Calvert, above referred
to, may be wound on the surface of a metal or wooden roller, as shewn
in the sketch. The object of the round wire is to keep the flat wires
at a uniform distance apart. A square wire may also be substituted
for the round one.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Henry Bernoulli Barlow in the Great Seal Patent
Office, on the 31st March 1853.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I,
HENRY BERNOULLI BARLOW, of Manchester, in the County, of Lancaster,
Patent Agent and Consulting Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent; bearing, date, the First day of October, in the year
of our Lord One thousand eight hundred and fifty-two, in the sixteenth
year of. Her reign, did, for Herself, Her heirs and successors, give and
grant unto me, the said Henry Bernoulli Barlow, Her special license
that I, the said Henry Bernoulli Barlow, my executors, administrators,
and assigns, or such others as I, the said Henry Bernoulli Barlow,
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 of years therein expressed, should and lawfully might make,
use, exercise, and vend, within the United Kingdom of Great Britain
and Ireland, the Channel Islands, and the Isle of Man, an Invention for
IMPROVEMENTS IN THE MANUFACTURE OF CYLINDERS FOR CARDING COTTON
AND OTHER FIBROUS SUBSTANCES," upon the condition (amongst others)
that I, the said Henry Bernoulli Barlow, by an instrument in writing
under my hand and seal, 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.
NOW KNOW YE, that I, the said Henry Bernoulli Barlow, do
hereby declare the nature of my said Invention, and in what manner
the same is to be performed, to be particularly described and ascertained
in and by the following statement (that is to say).:
My Invention consists in improvements upon part of the Invention
of Francis Alton Calvert, for which Letters Patent were granted to
him in England on or about the Eighteenth January, One thousand eight
hundred and forty-nine, and described in the second part of his Specifica-

page_text: DESCRIPTION OF THE DRAWINGS.
Figure 1; represents a section through part of a cylinder manufac-
tured according to the mode patented by the above-named Francis
Alton Calvert; this mode consists in turning spirál grooves in á metal
cylinder, and in inserting toothed wire into the said grooves; cylinders
of this construction are found to answer the purposes for which they
are intended exceedingly well; and the object of the present Invention
is to reduce the cost of manufacturing similar cylinders so as to render
their application more general. In manufacturing cylinders according
to the present Invention the wire in which the teeth are cut is flattened
to suit the fibrous substance to be operated upon, and as no shoulder is
required for entering into the groove shewn in Fig. 1, the operation of
reducing the thickness of the upper part of the wire is dispensed with;
the flat wire, after being punched so as to form teeth on one edge in
the usual manner, is wound on to a flanched pulley, and is then in a fit
state to be operated upon by the machine shewn in Fig 2, 3, and 4:
I wish to observe, that in some cases it is requisite to have small holes
punched through the flat wire; these holes can be punched at the same
time as the teeth..
The object of the machine shown in Figs 2, 3, and 4, is to bend the
flat wire into angle-shaped wire, as shewn in Figs. 5, 6, and 7; this is
eflected in the following manner: the pulley a, with the toothed flat
wire wound upon it, is placed on a stud b, see Figs 2, and 4; the wire
is then passed through the dies formed by the plates C, and d, the lower
one of which has a vertical and the upper oné a slanting groove, as seen
in Fig. 8; in passing through these dies the flat wire becomes.bent
to an angle corresponding to the grooves on the dies, and in passing
between the rollers c, and f, the wire is set to a right angle, as shewn in'

page_text: the detached Fig. 9. After passing between the rollers e, and f, the
wire is wound on a pulley y, which is turned round by a strap from a
pulley on the axis of the roller f; the wire is then in a fit state for usc.
Fig. 10, represents a section of part of a cylinder covered with the
improved wire; the cylinder is supposed to be of wood, the surface of
which must be accurately turned before the wire is wound on; in this
view are shewn two nails or tacks which are driven through the holes
in the wire for the purpose of holding the wire on the cylinder. In
Figures 11, and 12, are shewn two other modifications of my improve-
ments. In Fig. 11, a toothed flat wire similar to that on the pulley a, in
Fig. 2, and an ordinary round wire, are wound together on a wooden
cylinder, the thickness of the round wire being determined by the space
required between the toothed wires. In Fig. 12, a square wire is
shewn to keep the toothed wire at the proper distance apart. I would
remark, that although I have shewn the improved toothed wire as being
wound on wooden cylinders, the same may also be wound on to cylin-
ders made of iron.
Having now described the nature of my Inventions, and the best
means with which I am acquainted for carrying the same into effect, I
declare that I do not limit myself to the details herein set forth, so long
as the peculiar character of the Invention be retained; but what I
claim is, the improvements in the manufacture of carding cylinders, as
herein-before shewn and described.
In witness whereof, I, the said Henry Bernoulli Barlow, have
hereunto set my hand and seal, this Twenty-sixth day of March,
One thousand eight hundred and fifty-three.
H. B. BARLOW. (L.S.)