IMPROVEMENTS IN THE MANU- FACTURE OF YARNS OR THREADS, AND IN THE MECHANISM EMPLOYED THEREFOR
Year: 1869

page_text: LETTERS PATENT to John Ballantyne, Manufacturer, Tweed Vale
Mills, Walkerburn, near Innerleithen, in the County of Peebles,
North Britain, for the Invention of "IMPROVEMENTS IN THE MANU-
FACTURE OF YARNS OR THREADS, AND IN THE MECHANISM EMPLOYED
THEREFOR."
Sealed the 31st May 1870, and dated the 9th December 1869.
PROVISIONAL SPECIFICATION left by the said John Ballantyne at the
Office of the Commissioners of Patents, with his Petition, on the
9th December 1869.
I, JOHN BALLANTYNE, Manufacturer, Tweed Vale Mills, Walkerburn,
near Innerleithen, in the County of Peebles, North Britain, do hereby
declare the nature of the said Invention of "IMPROVEMENTS IN THE MANU-
FACTURE OF YARNS OR THREADS, AND IN THE MECHANISM EMPLOYED THEREFOR," to
be as follows, that is to say:
This Invention, which relates to the manufacture of certain yarns or
threads, has for its object the forming together of several coloured yarns
or wools into one thread, having a spotted or mottled appearance. To

page_text: carry out this object instead of employing the condenser doffer at
present in use, which consists of a solid cylinder with the cards fixed on
it in rings, the condenser doffer which constitutes the present Invention
has its surface composed of moveable or sliding and fixed bars alternately,
so that the cards (which are fixed upon the sliding bar) may be moved
from side to side and come in contact at each movement with a different
part of the cylinder to which the doffer is attached, and on which
cylinder the different coloured wools are laid, thus receiving from the
cylinder at cach movement wool of a different colour from that which
is received by the card on the fixed bar, thereby making the spotted or
mottled thread above described.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said John Ballantyne in the Great Seal Patent Office
on the 8th June 1870.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
BALLANTYNE, Manufacturer, Tweed Vale Mills, Walkerburn, near
Innerleithen, in the County of Peebles, North Britain, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Ninth day of December, in the year
of our Lord One thousand eight hundred and sixty-nine, in the 33rd
year of Her reign, did, for Herself, Her heirs and successors, give and
grant unto me, the said John Ballantyne, Her special license that I,
the said John Ballantyne, my executors, administrators, and assigns, or
such others as I, the said John Ballantyne, 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 MANUFACTURE OF YARNS OR
THREADS, AND IN THE MECHANISM EMPLOYED THEREFOR," upon the condition
(amongst others) that I, the said John Ballantyne, 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

page_text: Patent Office within six calendar months next and immediately after the
date of the said Letters Patent.
NOW KNOW YE, that I, the said John Ballantyne, do hereby declarc
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, reference being had to the accompanying
Drawings, and to the letters and figures marked thereon, that is to
say:
My said Invention, which relates to the manufacture of certain yarns
or threads, has for its object the forming together of different coloured
wools into one spotted or mottled sliver, to be afterwards into
spun
or thread having a spotted or mottled appearance.
yaru
To carry out this object instead of employing the condenser doffer at
present in use, which consists of a solid cylinder with the cards fixed on
it in rings, the condenser doffer which constitutes the present Invention
has its surface composed of moveable or sliding and fixing bars alternately,
so that the cards (which are fixed upon the sliding bars) may be moved
from side to side and come in contact at each movement with a different
part of the cylinder on which the doffer acts, and on which cylinder the.
different coloured wools are laid, thus receiving from the cylinder at each
movement wool of a different colour from that which is received by the
card on the fixed bar, thereby making the spotted or mottled sliver for
the manufacture of the thread above described.
And in order that my said Invention may be properly understood I
now proceed more particularly to set forth the system, mode, or manner
in or under which the same is or may be used or practically carried into
effect, that is to say -
On the Sheet of Drawings hereunto appended, Figure 1 is a side or
front elevation; and Figure 2 an end elevation of a condenser doffer as
constructed in accordance with this Invention, and which doffer is
employed in the formation of the spotted or mottled sliver for the manu-
facture of threads or yarns of a spotted or mottled appearance from
wools or other fibrous material of different colour.
Condenser doffers for this purpose as hitherto constructed consist of
a solid cylinder of suitable material, with the cards arranged in rings.
thereon.

page_text: Under this Invention the outer circular surface of the doffer is com-
posed of a series of fixed and sliding or moveable bars A and B arranged
alternately with each other, and on these bars the cards C and D (which
cards receive or take off the different coloured wools from the wool
cylinder) are fixed.
One method of arrangeing these cards is illustrated on the accom-
panying Drawing, and seen more particularly at Figure 1 thereof. Each
of the sliding or moveable bars B is dovetailed or inserted into the
surface of the doffer cylinder between the fixed bars A, as more par-
ticularly seen in end elevation at Figure 2, and these sliding or moveable
bars B are so arranged that they may be reciprocated or moved in a
backward or forward direction by suitable mechanism (such mechanism,
however, constituting no part of this Invention) so that the cards D
attached to the surface of the moveable bars B may come in contact
with a different part of the cylinder on which the various coloured wools
or fibrous material are arranged (such cylinder not being shown on the
Drawings). The cards thereby receive from the cylinder at each variation
of position of the bars B, wool of a different colour from that received
by the cards C on the fixed bars A. On the revolution of the doffer the
different coloured wools which have been received or taken off from the
wool cylinder by the various cards C and D are delivered from the cards
in a spotted or mottled sliver to the spool in the ordinary way, to be
afterwards spun into thread or yarn of the required spotted or mottled
pattern.
By this arrangement of doffer various colours may be imparted to the
thread or yarn by attaching a sufficient number of cards to the fixed
and moveable bars A and B, it being understood that I do not confine
myself to the arrangement of the cards shown on the accompanying
Drawings.
Having now described the nature of my said Invention, and the
system, mode, or manner in or under which the same is or may be
used or practically carried into effect, I would observe in conclusion
that what I consider novel and original, and therefore claim as the
Invention secured to me by the herein-before in part recited Letters
Patent is,-
First. The arrangement and construction of condenser doffer with the
surface or periphery composed of alternate fixed and moveable bars, as
and for the purpose herein-before described.

page_text: Second. The use and application of such condenser doffer in mechanism
for the manufacture of threads or yarn of a spotted or mottled pattern,
as herein-before set forth.
In witness whereof, I, the said John Ballantyne, have hereunto set
my hand and seal, this Third day of June One thousand eight
hundred and seventy.
JOHN BALLANTYNE. (L.S.)