IMPROVEMENTS IN MACHINERY OR APPARATUS FOR DOUBLING OR TWISTING YARNS OF WORSTED OR OTHER FIBROUS SUBSTANCES
Year: 1861

page_text: LETTERS PATENT to John French, of Manchester Road, Bradford, in
the County of York, Mechanic, for the Invention of "IMPROVEMENTS IN
MACHINERY OR APPARATUS FOR DOUBLING OR TWISTING YARNS OF WORSTED OR
OTHER FIBROUS SUBSTANCES."
Sealed the 29th April 1862, and dated the 2nd November 1861.
PROVISIONAL SPECIFICATION left by the said John French at the Office
of the Commissioners of Patents, with his Petition, on the 2nd November
1861.
I, JOHN FRENCH, of Manchester Road, Bradford, in the County of York,
Mechanic, do hereby declare the nature of the said Invention for "IMPROVE-
MENTS IN MACHINERY OR APPARATUS FOR DOUBLING OR TWISTING YARNS OF WORSTED
OR OTHER FIBROUS SUBSTANCES," to be as follows:-
The object of this Invention is to prevent the present waste of yarn, and
also the production of bad or imperfect yarn, which is now the case when one
or more of the ends or threads break in the series that are being twisted
together. To accomplish which I apply a series of catches so arranged as to act
upon and stop the rotation of the whole series of bobbins immediately on the
breakage of any one of the ends or threads, and thus break the whole number
of ends which are being twisted together at nearly the same time. Each
end or thread passes over and acts respectively upon one of the catches, so as
to keep it out of contact with its bobbin; but when any one of the ends...

page_text: break, the catch being liberated acts upon the next bobbin, and prevents the
rotation thereof, causing that end to break also, which allows its catch to act
upon and stop the next bobbin, and so on to any number of bobbins.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said John French in the Great Seal Patent Office on the
2nd May 1862.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
FRENCH, of Manchester Road, Bradford, in the County of York, Mechanic,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Second day of November, in the year of our Lord
One thousand eight hundred and sixty-one, in the twenty-fifth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said John French, Her special license that I, the said John French,
my executors, administrators, and assigns, or such others as I, the said
John French, 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 MACHINERY OR APPARATUS FOR DOUBLING OR TWISTING YARNS OF WORSTED OR
OTHER FIBROUS SUBSTANCES," upon the condition, amongst others, that I, the
said John French, my executors or adininistrators, 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.
NOW KNOW YE, that I, the said John French, 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:)-
present waste of yarn, and
now the case when one or
The object of this Invention is to prevent the
the production of bad or imperfect yarn, which is
more of the ends or threads break in the series that are being twisted together.
To accomplish which I apply a series of. catches so arranged as to act upon

page_text: and stop the rotation of the whole series of bobbins immediately on the
breakage of any one of the ends or threads, and thus break the whole number
of ends which are being twisted together at nearly the same time. Each end
or thread passes over and acts respectively upon one of the catches, so as to
keep it out of contact with its bobbin, but when any one of the ends break,
the catch being liberated acts upon the next bobbin, and prevents rotation
thereof, causing that end to break also, which allows its catch to act upon and
stop the next bobbin, and so on to any number of bobbins.
This Invention will be readily understood by reference to the accompanying
Sheet of Drawings, wherein Fig. 1 is an elevation of a series of four yarn
bobbins mounted on spindles, fixed in a plate attached to the creel board,
with catches applied thereto according to this Invention; Figs. 2, 3, and 4
shew, in plan, three of such series of four bobbins with their catches, in
manner or position as arranged on the creel board.
A is the creel board, which, when in its proper position as applied to the
doubling frame, is usually inclined or placed slanting upward from the front
edge a to the back edge a¹; B are metal plates, into which are fixed the
spindles C for carrying the yarn bobbins D, and on which they rotate; E are
short bobbins or catch blocks, which support the yarn bobbins and rotate with
them by reason of the catch pins e projecting into the ends of the said yarn
bobbins; F1, F2, F3, F4, are the catches, which are hinged on studs G affixed
to the plate B, and which studs are so placed as to produce a tendancy in the
catches to fall on the bobbins or catch block E, and thereby to come into
contact with the catch pins e, but prevented doing so by the tension of the
yarn or ends & acting upon fingers or projections H, which are fixed in the
catches, and extend above the top ends of the yarn bobbins D; but if one or
more of the ends or threads break, as shewn at F' or F³ in Fig. 3, and F²
or F in Fig. 4, it will be seen that the said catch will immediately fall, and
the hook I thereon will come into contact with the catch pine of the adjoining
bobbin or catch block E, and stop the rotation thereof, which stoppage will
break its yarn or thread, and in like manner the catch thereof will fall and
stop the next bobbin, and so on to any number of bobbins. J is a moveable
rod for keeping all the catches out of contact with their catch blocks when
required for piecing up the broken ends, and which is effected by moving it
into the notch K. If the creel board be placed horizontally, I fix the studs G
inclined or not perpendicular to the plate B, so as to produce a throw or
tendancy in the catches to fall on the catch pins, or if the creel board is much
inclined, I give inclination to the studs in opposite direction, so as to prevent
too heavy a fall; and in all cases I so form, construct, arrange, and adjust

page_text: the catches and connections therewith as to suit the varied circumstances of
the cases; and in some cases I dispense with the bobbins E, and form the
hooks I of the catches, so as to enter notches cut in the flanges of the yarn
bobbins.
Having thus fully described the nature of my said Invention, and shewn
the manner in which the same is or may be performed or carried into
practical operation, I would have it distinctly understood that I do not confine
or restrict myself to the precise form, construction, and arrangement of the
catches, or method of application thereof, as herein described, and shewn in
the Drawings, as various modifications may be made therein without departing
from the main features of my Invention; but what I claim as of my Invention
is, the application of catches in manner and for purposes substantially as
explained herein, and illustrated by the accompanying Sheet of Drawings.
In witness whereof, I, the said John French, have hereunto set my
hand and seal, this Twenty-sixth day of April, One thousand eight
hundred and sixty-two.
Signed, sealed, and delivered by the
within-named John French, in the
presence of
W*. TASKER,
JOHN FRENCH. (L.S.)
Patent Agent,
Halifax.